[{"author":[{"last_name":"Mertens","first_name":"Jerome","full_name":"Mertens, Jerome"},{"first_name":"Apuã C.M.","last_name":"Paquola","full_name":"Paquola, Apuã C.M."},{"full_name":"Ku, Manching","first_name":"Manching","last_name":"Ku"},{"full_name":"Hatch, Emily","first_name":"Emily","last_name":"Hatch"},{"full_name":"Böhnke, Lena","first_name":"Lena","last_name":"Böhnke"},{"full_name":"Ladjevardi, Shauheen","first_name":"Shauheen","last_name":"Ladjevardi"},{"first_name":"Sean","last_name":"McGrath","full_name":"McGrath, Sean"},{"last_name":"Campbell","first_name":"Benjamin","full_name":"Campbell, Benjamin"},{"first_name":"Hyungjun","last_name":"Lee","full_name":"Lee, Hyungjun"},{"last_name":"Herdy","first_name":"Joseph R.","full_name":"Herdy, Joseph R."},{"last_name":"Gonçalves","first_name":"J. Tiago","full_name":"Gonçalves, J. Tiago"},{"full_name":"Toda, Tomohisa","first_name":"Tomohisa","last_name":"Toda"},{"first_name":"Yongsung","last_name":"Kim","full_name":"Kim, Yongsung"},{"full_name":"Winkler, Jürgen","last_name":"Winkler","first_name":"Jürgen"},{"first_name":"Jun","last_name":"Yao","full_name":"Yao, Jun"},{"full_name":"HETZER, Martin W","id":"86c0d31b-b4eb-11ec-ac5a-eae7b2e135ed","orcid":"0000-0002-2111-992X","first_name":"Martin W","last_name":"HETZER"},{"last_name":"Gage","first_name":"Fred H.","full_name":"Gage, Fred H."}],"quality_controlled":"1","oa_version":"Published Version","language":[{"iso":"eng"}],"volume":17,"article_processing_charge":"No","month":"12","issue":"6","status":"public","publication_identifier":{"issn":["1934-5909"]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1016/j.stem.2015.09.001"}],"date_created":"2022-04-07T07:49:51Z","article_type":"original","_id":"11079","type":"journal_article","external_id":{"pmid":["26456686"]},"user_id":"72615eeb-f1f3-11ec-aa25-d4573ddc34fd","extern":"1","date_updated":"2022-07-18T08:44:21Z","citation":{"apa":"Mertens, J., Paquola, A. C. M., Ku, M., Hatch, E., Böhnke, L., Ladjevardi, S., … Gage, F. H. (2015). Directly reprogrammed human neurons retain aging-associated transcriptomic signatures and reveal age-related nucleocytoplasmic defects. <i>Cell Stem Cell</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.stem.2015.09.001\">https://doi.org/10.1016/j.stem.2015.09.001</a>","ama":"Mertens J, Paquola ACM, Ku M, et al. Directly reprogrammed human neurons retain aging-associated transcriptomic signatures and reveal age-related nucleocytoplasmic defects. <i>Cell Stem Cell</i>. 2015;17(6):705-718. doi:<a href=\"https://doi.org/10.1016/j.stem.2015.09.001\">10.1016/j.stem.2015.09.001</a>","ista":"Mertens J, Paquola ACM, Ku M, Hatch E, Böhnke L, Ladjevardi S, McGrath S, Campbell B, Lee H, Herdy JR, Gonçalves JT, Toda T, Kim Y, Winkler J, Yao J, Hetzer M, Gage FH. 2015. Directly reprogrammed human neurons retain aging-associated transcriptomic signatures and reveal age-related nucleocytoplasmic defects. Cell Stem Cell. 17(6), 705–718.","chicago":"Mertens, Jerome, Apuã C.M. Paquola, Manching Ku, Emily Hatch, Lena Böhnke, Shauheen Ladjevardi, Sean McGrath, et al. “Directly Reprogrammed Human Neurons Retain Aging-Associated Transcriptomic Signatures and Reveal Age-Related Nucleocytoplasmic Defects.” <i>Cell Stem Cell</i>. Elsevier, 2015. <a href=\"https://doi.org/10.1016/j.stem.2015.09.001\">https://doi.org/10.1016/j.stem.2015.09.001</a>.","ieee":"J. Mertens <i>et al.</i>, “Directly reprogrammed human neurons retain aging-associated transcriptomic signatures and reveal age-related nucleocytoplasmic defects,” <i>Cell Stem Cell</i>, vol. 17, no. 6. Elsevier, pp. 705–718, 2015.","short":"J. Mertens, A.C.M. Paquola, M. Ku, E. Hatch, L. Böhnke, S. Ladjevardi, S. McGrath, B. Campbell, H. Lee, J.R. Herdy, J.T. Gonçalves, T. Toda, Y. Kim, J. Winkler, J. Yao, M. Hetzer, F.H. Gage, Cell Stem Cell 17 (2015) 705–718.","mla":"Mertens, Jerome, et al. “Directly Reprogrammed Human Neurons Retain Aging-Associated Transcriptomic Signatures and Reveal Age-Related Nucleocytoplasmic Defects.” <i>Cell Stem Cell</i>, vol. 17, no. 6, Elsevier, 2015, pp. 705–18, doi:<a href=\"https://doi.org/10.1016/j.stem.2015.09.001\">10.1016/j.stem.2015.09.001</a>."},"pmid":1,"publisher":"Elsevier","date_published":"2015-12-03T00:00:00Z","title":"Directly reprogrammed human neurons retain aging-associated transcriptomic signatures and reveal age-related nucleocytoplasmic defects","publication_status":"published","abstract":[{"text":"Aging is a major risk factor for many human diseases, and in vitro generation of human neurons is an attractive approach for modeling aging-related brain disorders. However, modeling aging in differentiated human neurons has proved challenging. We generated neurons from human donors across a broad range of ages, either by iPSC-based reprogramming and differentiation or by direct conversion into induced neurons (iNs). While iPSCs and derived neurons did not retain aging-associated gene signatures, iNs displayed age-specific transcriptional profiles and revealed age-associated decreases in the nuclear transport receptor RanBP17. We detected an age-dependent loss of nucleocytoplasmic compartmentalization (NCC) in donor fibroblasts and corresponding iNs and found that reduced RanBP17 impaired NCC in young cells, while iPSC rejuvenation restored NCC in aged cells. These results show that iNs retain important aging-related signatures, thus allowing modeling of the aging process in vitro, and they identify impaired NCC as an important factor in human aging.","lang":"eng"}],"year":"2015","page":"705-718","doi":"10.1016/j.stem.2015.09.001","day":"03","oa":1,"intvolume":"        17","publication":"Cell Stem Cell","keyword":["Cell Biology","Genetics","Molecular Medicine"],"scopus_import":"1"},{"quality_controlled":"1","oa_version":"Preprint","author":[{"full_name":"Sobral, David","first_name":"David","last_name":"Sobral"},{"orcid":"0000-0003-2871-127X","last_name":"Matthee","first_name":"Jorryt J","full_name":"Matthee, Jorryt J","id":"7439a258-f3c0-11ec-9501-9df22fe06720"},{"last_name":"Darvish","first_name":"Behnam","full_name":"Darvish, Behnam"},{"full_name":"Schaerer, Daniel","last_name":"Schaerer","first_name":"Daniel"},{"first_name":"Bahram","last_name":"Mobasher","full_name":"Mobasher, Bahram"},{"last_name":"Röttgering","first_name":"Huub","full_name":"Röttgering, Huub"},{"last_name":"Santos","first_name":"Sérgio","full_name":"Santos, Sérgio"},{"full_name":"Hemmati, Shoubaneh","last_name":"Hemmati","first_name":"Shoubaneh"}],"month":"07","issue":"2","language":[{"iso":"eng"}],"article_processing_charge":"No","volume":808,"date_created":"2022-07-07T09:00:58Z","_id":"11519","type":"journal_article","article_type":"original","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1504.01734"}],"status":"public","publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"date_updated":"2022-08-18T10:30:13Z","extern":"1","citation":{"short":"D. Sobral, J.J. Matthee, B. Darvish, D. Schaerer, B. Mobasher, H. Röttgering, S. Santos, S. Hemmati, The Astrophysical Journal 808 (2015) 139.","mla":"Sobral, David, et al. “Evidence for PopIII-like Stellar Populations in the Most Luminous Lyα Emitters at the Epoch of Reionisation: Spectroscopic Confirmation.” <i>The Astrophysical Journal</i>, vol. 808, no. 2, IOP Publishing, 2015, p. 139, doi:<a href=\"https://doi.org/10.1088/0004-637X/808/2/139\">10.1088/0004-637X/808/2/139</a>.","apa":"Sobral, D., Matthee, J. J., Darvish, B., Schaerer, D., Mobasher, B., Röttgering, H., … Hemmati, S. (2015). Evidence for PopIII-like stellar populations in the most luminous Lyα emitters at the epoch of reionisation: Spectroscopic confirmation. <i>The Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/0004-637X/808/2/139\">https://doi.org/10.1088/0004-637X/808/2/139</a>","chicago":"Sobral, David, Jorryt J Matthee, Behnam Darvish, Daniel Schaerer, Bahram Mobasher, Huub Röttgering, Sérgio Santos, and Shoubaneh Hemmati. “Evidence for PopIII-like Stellar Populations in the Most Luminous Lyα Emitters at the Epoch of Reionisation: Spectroscopic Confirmation.” <i>The Astrophysical Journal</i>. IOP Publishing, 2015. <a href=\"https://doi.org/10.1088/0004-637X/808/2/139\">https://doi.org/10.1088/0004-637X/808/2/139</a>.","ama":"Sobral D, Matthee JJ, Darvish B, et al. Evidence for PopIII-like stellar populations in the most luminous Lyα emitters at the epoch of reionisation: Spectroscopic confirmation. <i>The Astrophysical Journal</i>. 2015;808(2):139. doi:<a href=\"https://doi.org/10.1088/0004-637X/808/2/139\">10.1088/0004-637X/808/2/139</a>","ista":"Sobral D, Matthee JJ, Darvish B, Schaerer D, Mobasher B, Röttgering H, Santos S, Hemmati S. 2015. Evidence for PopIII-like stellar populations in the most luminous Lyα emitters at the epoch of reionisation: Spectroscopic confirmation. The Astrophysical Journal. 808(2), 139.","ieee":"D. Sobral <i>et al.</i>, “Evidence for PopIII-like stellar populations in the most luminous Lyα emitters at the epoch of reionisation: Spectroscopic confirmation,” <i>The Astrophysical Journal</i>, vol. 808, no. 2. IOP Publishing, p. 139, 2015."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1504.01734"]},"abstract":[{"lang":"eng","text":"Faint Lyα emitters become increasingly rarer toward the reionization epoch (z ∼ 6–7). However, observations from a very large (∼5 deg2) Lyα narrow-band survey at z = 6.6 show that this is not the case for the most luminous emitters, capable of ionizing their own local bubbles. Here we present follow-up observations of the two most luminous Lyα candidates in the COSMOS field: “MASOSA” and “CR7.” We used X-SHOOTER, SINFONI, and FORS2 on the Very Large Telescope, and DEIMOS on Keck, to confirm both candidates beyond any doubt. We find redshifts of z = 6.541 and z = 6.604 for “MASOSA” and “CR7,” respectively. MASOSA has a strong detection in Lyα with a line width of 386 ± 30 km s−1 (FWHM) and with very high EW0 (>200 Å), but undetected in the continuum, implying very low stellar mass and a likely young, metal-poor stellar population. “CR7,” with an observed Lyα luminosity of 1043.92±0.05 erg s−1 is the most luminous Lyα emitter ever found at z > 6 and is spatially extended (∼16 kpc). “CR7” reveals a narrow Lyα line with 266 ± 15 km s−1 FWHM, being detected in the near-infrared (NIR) (rest-frame UV; β = −2.3 ± 0.1) and in IRAC/Spitzer. We detect a narrow He II 1640 Å emission line (6σ, FWHM = 130 ± 30 km s−1 ) in CR7 which can explain the clear excess seen in the J-band photometry (EW0 ∼ 80 Å). We find no other emission lines from the UV to the NIR in our X-SHOOTER spectra (He II/O III] 1663 Å > 3 and He II/C III] 1908 Å > 2.5). We conclude that CR7 is best explained by a combination of a PopIII-like population, which dominates the rest-frame UV and the nebular emission, and a more normal stellar population, which presumably dominates the mass. Hubble Space Telescope/WFC3 observations show that the light is indeed spatially separated between a very blue component, coincident with Lyα and He II emission, and two red components (∼5 kpc away), which dominate the mass. Our findings are consistent with theoretical predictions of a PopIII wave, with PopIII star formation migrating away from the original sites of star formation."}],"publication_status":"published","publisher":"IOP Publishing","date_published":"2015-07-28T00:00:00Z","title":"Evidence for PopIII-like stellar populations in the most luminous Lyα emitters at the epoch of reionisation: Spectroscopic confirmation","oa":1,"acknowledgement":"We thank the anonymous reviewer for useful and constructive comments and suggestions which greatly improved the quality and clarity of our work. D.S. acknowledges financial support from the Netherlands Organisation for Scientific research (NWO) through a Veni fellowship, from FCT through a FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010), from FCT grant UID/FIS/04434/2013, and from LSF and LKBF. J.M. acknowledges the award of a Huygens PhD fellowship. H.R. acknowledges support from the ERC Advanced Investigator program NewClusters 321271. The authors thank Mark Dijkstra, Bhaskar Agarwal, Jarrett Johnson, Andrea Ferrara, Jarle Brinchmann, Rebecca Bowler, George Becker, Emma Curtis-Lake, Milos Milosavljevic, Raffaella Schneider, Paul Shapiro, and Erik Zackrisson for interesting, stimulating and helpful discussions. The authors are extremely grateful to ESO for the award of ESO DDT time (294.A-5018 and 294.A-5039) which allowed the spectroscopic confirmation of both sources and the detailed investigation of their nature. Observations are also based on data from W.M. Keck Observatory. The W.M. Keck Observatory is operated as a scientific partnership of Caltech, the University of California and the National Aeronautics and Space Administration. Based on observations obtained with MegaPrime/Megacam, a joint project of CFHT and CEA/IRFU, at the Canada–France–Hawaii Telescope (CFHT) which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de lUnivers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. This work is based in part on data products produced at Terapix available at the Canadian Astronomy Data Centre as part of the Canada–France–Hawaii Telescope Legacy Survey, a collaborative project of NRC and CNRS. Based on data products from observations made with ESO Telescopes at the La Silla Paranal Observatory under ESO programme IDs 294.A-5018, 294.A-5039, and 179.A-2005, and on data products produced by TERAPIX and the Cambridge Astronomy Survey Unit on behalf of the UltraVISTA consortium. The authors acknowledge the award of service time (SW2014b20) on the William Herschel Telescope (WHT). WHT and its service programme are operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias.","doi":"10.1088/0004-637X/808/2/139","year":"2015","page":"139","day":"28","keyword":["Space and Planetary Science","Astronomy and Astrophysics","dark ages","reionization","first stars – early universe – galaxies: evolution"],"scopus_import":"1","intvolume":"       808","arxiv":1,"publication":"The Astrophysical Journal"},{"publication_status":"published","abstract":[{"lang":"eng","text":"CR7 is the brightest z = 6.6 Ly α emitter (LAE) known to date, and spectroscopic follow-up by Sobral et al. suggests that CR7 might host Population (Pop) III stars. We examine this interpretation using cosmological hydrodynamical simulations. Several simulated galaxies show the same ‘Pop III wave’ pattern observed in CR7. However, to reproduce the extreme CR7 Ly α/He II1640 line luminosities (⁠Lα/HeII⁠) a top-heavy initial mass function and a massive ( ≳ 107 M⊙) Pop III burst with age ≲ 2 Myr are required. Assuming that the observed properties of Ly α and He II emission are typical for Pop III, we predict that in the COSMOS/UDS/SA22 fields, 14 out of the 30 LAEs at z = 6.6 with Lα > 1043.3 erg s−1 should also host Pop III stars producing an observable LHeII≳1042.7ergs−1⁠. As an alternate explanation, we explore the possibility that CR7 is instead powered by accretion on to a direct collapse black hole. Our model predicts Lα, LHeII⁠, and X-ray luminosities that are in agreement with the observations. In any case, the observed properties of CR7 indicate that this galaxy is most likely powered by sources formed from pristine gas. We propose that further X-ray observations can distinguish between the two above scenarios."}],"date_published":"2015-11-01T00:00:00Z","publisher":"Oxford University Press","title":"The brightest Lyα emitter: Pop III or black hole?","extern":"1","date_updated":"2022-08-19T08:19:23Z","citation":{"ieee":"A. Pallottini <i>et al.</i>, “The brightest Lyα emitter: Pop III or black hole?,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 453, no. 3. Oxford University Press, pp. 2465–2470, 2015.","ista":"Pallottini A, Ferrara A, Pacucci F, Gallerani S, Salvadori S, Schneider R, Schaerer D, Sobral D, Matthee JJ. 2015. The brightest Lyα emitter: Pop III or black hole? Monthly Notices of the Royal Astronomical Society. 453(3), 2465–2470.","chicago":"Pallottini, A., A. Ferrara, F. Pacucci, S. Gallerani, S. Salvadori, R. Schneider, D. Schaerer, D. Sobral, and Jorryt J Matthee. “The Brightest Lyα Emitter: Pop III or Black Hole?” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2015. <a href=\"https://doi.org/10.1093/mnras/stv1795\">https://doi.org/10.1093/mnras/stv1795</a>.","ama":"Pallottini A, Ferrara A, Pacucci F, et al. The brightest Lyα emitter: Pop III or black hole? <i>Monthly Notices of the Royal Astronomical Society</i>. 2015;453(3):2465-2470. doi:<a href=\"https://doi.org/10.1093/mnras/stv1795\">10.1093/mnras/stv1795</a>","apa":"Pallottini, A., Ferrara, A., Pacucci, F., Gallerani, S., Salvadori, S., Schneider, R., … Matthee, J. J. (2015). The brightest Lyα emitter: Pop III or black hole? <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stv1795\">https://doi.org/10.1093/mnras/stv1795</a>","mla":"Pallottini, A., et al. “The Brightest Lyα Emitter: Pop III or Black Hole?” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 453, no. 3, Oxford University Press, 2015, pp. 2465–70, doi:<a href=\"https://doi.org/10.1093/mnras/stv1795\">10.1093/mnras/stv1795</a>.","short":"A. Pallottini, A. Ferrara, F. Pacucci, S. Gallerani, S. Salvadori, R. Schneider, D. Schaerer, D. Sobral, J.J. Matthee, Monthly Notices of the Royal Astronomical Society 453 (2015) 2465–2470."},"external_id":{"arxiv":["1506.07173"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","keyword":["Space and Planetary Science","Astronomy and Astrophysics","black hole physics","stars: Population III","galaxies: high-redshift"],"scopus_import":"1","arxiv":1,"intvolume":"       453","publication":"Monthly Notices of the Royal Astronomical Society","oa":1,"acknowledgement":"SS acknowledges support from the Netherlands Organization for Scientific research (NWO), VENI grant 639.041.233. RS acknowledges support from the European Research Council under the European Union (FP/2007-2013)/ERC grant agreement no. 306476. DS acknowledges (i) financial support from the NWO through a Veni fellowship and (ii) funding from FCT through a FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010) and from FCT grant PEstOE/FIS/UI2751/2014.","day":"01","doi":"10.1093/mnras/stv1795","year":"2015","page":"2465-2470","month":"11","issue":"3","language":[{"iso":"eng"}],"volume":453,"article_processing_charge":"No","quality_controlled":"1","oa_version":"Preprint","author":[{"full_name":"Pallottini, A.","first_name":"A.","last_name":"Pallottini"},{"first_name":"A.","last_name":"Ferrara","full_name":"Ferrara, A."},{"last_name":"Pacucci","first_name":"F.","full_name":"Pacucci, F."},{"full_name":"Gallerani, S.","last_name":"Gallerani","first_name":"S."},{"first_name":"S.","last_name":"Salvadori","full_name":"Salvadori, S."},{"last_name":"Schneider","first_name":"R.","full_name":"Schneider, R."},{"last_name":"Schaerer","first_name":"D.","full_name":"Schaerer, D."},{"last_name":"Sobral","first_name":"D.","full_name":"Sobral, D."},{"last_name":"Matthee","first_name":"Jorryt J","orcid":"0000-0003-2871-127X","id":"7439a258-f3c0-11ec-9501-9df22fe06720","full_name":"Matthee, Jorryt J"}],"date_created":"2022-07-14T08:58:36Z","article_type":"original","type":"journal_article","_id":"11579","status":"public","publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"main_file_link":[{"url":"https://arxiv.org/abs/1506.07173","open_access":"1"}]},{"citation":{"mla":"Sobral, D., et al. “CF-HiZELS, an ∼10 Deg2 Emission-Line Survey with Spectroscopic Follow-up: Hα, [O III] + Hβ and [O II] Luminosity Functions at z = 0.8, 1.4 and 2.2 .” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 451, no. 3, Oxford University Press, 2015, pp. 2303–23, doi:<a href=\"https://doi.org/10.1093/mnras/stv1076\">10.1093/mnras/stv1076</a>.","short":"D. Sobral, J.J. Matthee, P.N. Best, I. Smail, A.A. Khostovan, B. Milvang-Jensen, J.-W. Kim, J. Stott, J. Calhau, H. Nayyeri, B. Mobasher, Monthly Notices of the Royal Astronomical Society 451 (2015) 2303–2323.","ieee":"D. Sobral <i>et al.</i>, “CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2 ,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 451, no. 3. Oxford University Press, pp. 2303–2323, 2015.","apa":"Sobral, D., Matthee, J. J., Best, P. N., Smail, I., Khostovan, A. A., Milvang-Jensen, B., … Mobasher, B. (2015). CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2 . <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stv1076\">https://doi.org/10.1093/mnras/stv1076</a>","ista":"Sobral D, Matthee JJ, Best PN, Smail I, Khostovan AA, Milvang-Jensen B, Kim J-W, Stott J, Calhau J, Nayyeri H, Mobasher B. 2015. CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2 . Monthly Notices of the Royal Astronomical Society. 451(3), 2303–2323.","ama":"Sobral D, Matthee JJ, Best PN, et al. CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2 . <i>Monthly Notices of the Royal Astronomical Society</i>. 2015;451(3):2303-2323. doi:<a href=\"https://doi.org/10.1093/mnras/stv1076\">10.1093/mnras/stv1076</a>","chicago":"Sobral, D., Jorryt J Matthee, P. N. Best, I. Smail, A. A. Khostovan, B. Milvang-Jensen, J.-W. Kim, et al. “CF-HiZELS, an ∼10 Deg2 Emission-Line Survey with Spectroscopic Follow-up: Hα, [O III] + Hβ and [O II] Luminosity Functions at z = 0.8, 1.4 and 2.2 .” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2015. <a href=\"https://doi.org/10.1093/mnras/stv1076\">https://doi.org/10.1093/mnras/stv1076</a>."},"extern":"1","date_updated":"2022-08-19T08:23:18Z","external_id":{"arxiv":["1502.06602"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","abstract":[{"text":"We present results from the largest contiguous narrow-band survey in the near-infrared. We have used the wide-field infrared camera/Canada–France–Hawaii Telescope and the lowOH2 filter (1.187 ± 0.005 μm) to survey ≈10 deg2 of contiguous extragalactic sky in the SA22 field. A total of ∼6000 candidate emission-line galaxies are found. We use deep ugrizJK data to obtain robust photometric redshifts. We combine our data with the High-redshift(Z) Emission Line Survey (HiZELS), explore spectroscopic surveys (VVDS, VIPERS) and obtain our own spectroscopic follow-up with KMOS, FMOS and MOSFIRE to derive large samples of high-redshift emission-line selected galaxies: 3471 Hα emitters at z = 0.8, 1343 [O III] + Hβ emitters at z = 1.4 and 572 [O II] emitters at z = 2.2. We probe comoving volumes of >106 Mpc3 and find significant overdensities, including an 8.5σ (spectroscopically confirmed) overdensity of Hα emitters at z = 0.81. We derive Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4, 2.2, respectively, and present implications for future surveys such as Euclid. Our uniquely large volumes/areas allow us to subdivide the samples in thousands of randomized combinations of areas and provide a robust empirical measurement of sample/cosmic variance. We show that surveys for star-forming/emission-line galaxies at a depth similar to ours can only overcome cosmic-variance (errors <10 per cent) if they are based on volumes >5 × 105 Mpc3; errors on L* and ϕ* due to sample (cosmic) variance on surveys probing ∼104 and ∼105 Mpc3 are typically very high: ∼300 and ∼40–60 per cent, respectively.","lang":"eng"}],"title":"CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2 ","date_published":"2015-08-11T00:00:00Z","publisher":"Oxford University Press","oa":1,"day":"11","doi":"10.1093/mnras/stv1076","page":"2303-2323","year":"2015","acknowledgement":"The authors wish to thank the anonymous reviewer for many helpful comments and suggestions which greatly improved the clarity and quality of this work. DS acknowledges financial support from the Netherlands Organization for Scientific research (NWO) through a Veni fellowship, from FCT through an FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010), from FCT grant PEst-OE/FIS/UI2751/2014, and from LSF and LKBF. JM acknowledges the award of a Huygens PhD fellowship. PNB is grateful for support from STFC. IRS acknowledges support from STFC, a Leverhulme Fellowship, the ERC Advanced Investigator programme DUSTYGAL and a Royal Society/Wolfson Merit Award. BMJ acknowledges support from the ERC-StG grant EGGS-278202. The Dark Cosmology Centre is funded by the DNRF. The Dark Cosmology Centre is funded by the DNRF. JWK acknowledges support from the National Research Foundation of Korea (NRF) grant, no. 2008-0060544, funded by the Korea government (MSIP). JPS acknowledges support from STFC (ST/I001573/1). JC acknowledges support from the FCT-IF grant IF/01154/2012/CP0189/CT0010. The work was only possible due to OPTICON/FP7 and the invaluable access that it granted to the CFHT telescope. We would also like to acknowledge the excellent work done by CFHT staff in conducting the observations in service mode, and on delivering truly excellent data. We are also tremendously thankful to Kentaro Aoki for the incredible support while observing at Subaru with FMOS, and also to the Keck staff for the help with the observations with MOSFIRE. This work is based on observations obtained with WIRCam on the CFHT, OPTICON programme 2011B/029, 2012A019 and 2012B/016. Based on observations made with ESO telescopes at the La Silla Paranal Observatory under programmes IDs 60.A-9460 (data can be accessed through the ESO data archive), 087.A 0337 and 089.A-0965. Based on observations done with FMOS on Subaru under programme S14A-084, and on MOSFIRE/Keck observations under programme U066M. Part of the data on which this analysis is based are available from Sobral et al. (2013a). Dedicated to the memory of C. M. Sobral (1953-2014).","keyword":["Space and Planetary Science","Astronomy and Astrophysics","galaxies: evolution","galaxies: formation","galaxies: luminosity function","mass function","cosmology: observations","early Universe","large-scale structure of Universe"],"scopus_import":"1","publication":"Monthly Notices of the Royal Astronomical Society","arxiv":1,"intvolume":"       451","oa_version":"Preprint","quality_controlled":"1","author":[{"full_name":"Sobral, D.","last_name":"Sobral","first_name":"D."},{"last_name":"Matthee","first_name":"Jorryt J","orcid":"0000-0003-2871-127X","id":"7439a258-f3c0-11ec-9501-9df22fe06720","full_name":"Matthee, Jorryt J"},{"full_name":"Best, P. N.","last_name":"Best","first_name":"P. N."},{"first_name":"I.","last_name":"Smail","full_name":"Smail, I."},{"first_name":"A. A.","last_name":"Khostovan","full_name":"Khostovan, A. A."},{"last_name":"Milvang-Jensen","first_name":"B.","full_name":"Milvang-Jensen, B."},{"last_name":"Kim","first_name":"J.-W.","full_name":"Kim, J.-W."},{"first_name":"J.","last_name":"Stott","full_name":"Stott, J."},{"full_name":"Calhau, J.","first_name":"J.","last_name":"Calhau"},{"full_name":"Nayyeri, H.","last_name":"Nayyeri","first_name":"H."},{"first_name":"B.","last_name":"Mobasher","full_name":"Mobasher, B."}],"issue":"3","month":"08","volume":451,"article_processing_charge":"No","language":[{"iso":"eng"}],"article_type":"original","type":"journal_article","_id":"11580","date_created":"2022-07-14T09:02:22Z","publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"main_file_link":[{"url":"https://arxiv.org/abs/1502.06602","open_access":"1"}],"status":"public"},{"title":"Identification of the brightest Lyα emitters at z = 6.6: implications for the evolution of the luminosity function in the reionization era","date_published":"2015-07-21T00:00:00Z","publisher":"Oxford University Press","abstract":[{"lang":"eng","text":"Using wide-field narrow-band surveys, we provide a new measurement of the z = 6.6 Lymanα emitter (LAE) luminosity function (LF), which constraints the bright end for the first time. We use a combination of archival narrow-band NB921 data in UDS and new NB921 measurements in SA22 and COSMOS/UltraVISTA, all observed with the Subaru telescope, with a total area of ∼5 deg2. We exclude lower redshift interlopers by using broad-band optical and near-infrared photometry and also exclude three supernovae with data split over multiple epochs. Combining the UDS and COSMOS samples, we find no evolution of the bright end of the Lyα LF between z = 5.7 and 6.6, which is supported by spectroscopic follow-up, and conclude that sources with Himiko-like luminosity are not as rare as previously thought, with number densities of ∼1.5 × 10−5 Mpc−3. Combined with our wide-field SA22 measurements, our results indicate a non-Schechter-like bright end of the LF at z = 6.6 and a different evolution of observed faint and bright LAEs, overcoming cosmic variance. This differential evolution is also seen in the spectroscopic follow-up of UV-selected galaxies and is now also confirmed for LAEs, and we argue that it may be an effect of reionization. Using a toy model, we show that such differential evolution of the LF is expected, since brighter sources are able to ionize their surroundings earlier, such that Lyα photons are able to escape. Our targets are excellent candidates for detailed follow-up studies and provide the possibility to give a unique view on the earliest stages in the formation of galaxies and reionization process."}],"publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1502.07355"]},"citation":{"apa":"Matthee, J. J., Sobral, D., Santos, S., Röttgering, H., Darvish, B., &#38; Mobasher, B. (2015). Identification of the brightest Lyα emitters at z = 6.6: implications for the evolution of the luminosity function in the reionization era. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stv947\">https://doi.org/10.1093/mnras/stv947</a>","chicago":"Matthee, Jorryt J, David Sobral, Sérgio Santos, Huub Röttgering, Behnam Darvish, and Bahram Mobasher. “Identification of the Brightest Lyα Emitters at z = 6.6: Implications for the Evolution of the Luminosity Function in the Reionization Era.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2015. <a href=\"https://doi.org/10.1093/mnras/stv947\">https://doi.org/10.1093/mnras/stv947</a>.","ista":"Matthee JJ, Sobral D, Santos S, Röttgering H, Darvish B, Mobasher B. 2015. Identification of the brightest Lyα emitters at z = 6.6: implications for the evolution of the luminosity function in the reionization era. Monthly Notices of the Royal Astronomical Society. 451(1), 400–417.","ama":"Matthee JJ, Sobral D, Santos S, Röttgering H, Darvish B, Mobasher B. Identification of the brightest Lyα emitters at z = 6.6: implications for the evolution of the luminosity function in the reionization era. <i>Monthly Notices of the Royal Astronomical Society</i>. 2015;451(1):400-417. doi:<a href=\"https://doi.org/10.1093/mnras/stv947\">10.1093/mnras/stv947</a>","ieee":"J. J. Matthee, D. Sobral, S. Santos, H. Röttgering, B. Darvish, and B. Mobasher, “Identification of the brightest Lyα emitters at z = 6.6: implications for the evolution of the luminosity function in the reionization era,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 451, no. 1. Oxford University Press, pp. 400–417, 2015.","mla":"Matthee, Jorryt J., et al. “Identification of the Brightest Lyα Emitters at z = 6.6: Implications for the Evolution of the Luminosity Function in the Reionization Era.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 451, no. 1, Oxford University Press, 2015, pp. 400–17, doi:<a href=\"https://doi.org/10.1093/mnras/stv947\">10.1093/mnras/stv947</a>.","short":"J.J. Matthee, D. Sobral, S. Santos, H. Röttgering, B. Darvish, B. Mobasher, Monthly Notices of the Royal Astronomical Society 451 (2015) 400–417."},"date_updated":"2022-08-19T08:25:25Z","extern":"1","publication":"Monthly Notices of the Royal Astronomical Society","intvolume":"       451","arxiv":1,"scopus_import":"1","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"doi":"10.1093/mnras/stv947","year":"2015","page":"400-417","day":"21","acknowledgement":"We thank the anonymous referee for the comments and suggestions which have improved the quality of this work. We thank Masami Ouchi for his useful comments on an earlier version of this paper. JM acknowledges the support of a Huygens PhD fellowship from Leiden University and is thankful for the hospitality of the Center for Astronomy and Astrophysics of the University of Lisbon where part of this research has been done. DS acknowledges financial support from the Netherlands Organization for Scientific research (NWO) through a Veni fellowship, from FCT through a FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010) and from FCT grant PEstOE/FIS/UI2751/2014. HR acknowledges support from the ERC Advanced Investigator programme NewClusters 321271. We acknowledge the award of ESO DDT time (294.A-5018) for providing the possibility of a timely publication of this work.\r\nBased on observations with the Subaru Telescope (Programme IDs: our observations: S14A-086; archival: S05B-027, S06A-025, S06B-010, S07A-013, S07B-008, S08B-008 and S09A-017) and the W.M. Keck Observatory. The Subaru telescope is operated by the National Astronomical Observatory of Japan. The W.M. Keck Observatory is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. Based on observations made with ESO Telescopes at the La Silla Paranal Observatory under programme ID 294.A-5018. Based on observations obtained with MegaPrime/Megacam, a joint project of CFHT and CEA/IRFU, at the Canada–France-Hawaii Telescope (CFHT) which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de l’Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. This work is based in part on data products produced at Terapix available at the Canadian Astronomy Data Centre as part of the CFHT Legacy Survey, a collaborative project of NRC and CNRS. Based on data products from observations made with ESO Telescopes at the La Silla Paranal Observatory under ESO programme ID 179.A-2005 and on data products produced by TERAPIX and the Cambridge Astronomy Survey Unit on behalf of the UltraVISTA consortium.\r\nIn addition to the CFHT-LS and COSMOS-UltraVISTA surveys, we are grateful for the excellent data sets from the UKIRT-DXS, SXDF and S-COSMOS survey teams, without these legacy surveys, this research would have been impossible. We have benefited greatly from the public available programming language PYTHON, including the NUMPY, MATPLOTLIB, PYFITS, SCIPY and ASTROPY packages, the astronomical imaging tools SEXTRACTOR, SWARP and SCAMP and the indispensable TOPCAT analysis tool (Taylor 2013)","oa":1,"article_processing_charge":"No","volume":451,"language":[{"iso":"eng"}],"issue":"1","month":"07","author":[{"orcid":"0000-0003-2871-127X","first_name":"Jorryt J","last_name":"Matthee","full_name":"Matthee, Jorryt J","id":"7439a258-f3c0-11ec-9501-9df22fe06720"},{"full_name":"Sobral, David","last_name":"Sobral","first_name":"David"},{"last_name":"Santos","first_name":"Sérgio","full_name":"Santos, Sérgio"},{"last_name":"Röttgering","first_name":"Huub","full_name":"Röttgering, Huub"},{"first_name":"Behnam","last_name":"Darvish","full_name":"Darvish, Behnam"},{"full_name":"Mobasher, Bahram","last_name":"Mobasher","first_name":"Bahram"}],"oa_version":"Preprint","quality_controlled":"1","main_file_link":[{"url":"https://arxiv.org/abs/1502.07355","open_access":"1"}],"status":"public","publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"_id":"11581","type":"journal_article","article_type":"original","date_created":"2022-07-14T11:57:03Z"},{"keyword":["Algorithms","Economics","Clinching ascending auction","auctions with budgets","Sponsored search auctions"],"scopus_import":"1","intvolume":"         4","publication":"ACM Transactions on Economics and Computation","oa":1,"year":"2015","day":"05","doi":"10.1145/2818357","abstract":[{"text":"We study multiple keyword sponsored search auctions with budgets. Each keyword has multiple ad slots with a click-through rate. The bidders have additive valuations, which are linear in the click-through rates, and budgets, which are restricting their overall payments. Additionally, the number of slots per keyword assigned to a bidder is bounded.\r\n\r\nWe show the following results: (1) We give the first mechanism for multiple keywords, where click-through rates differ among slots. Our mechanism is incentive compatible in expectation, individually rational in expectation, and Pareto optimal. (2) We study the combinatorial setting, where each bidder is only interested in a subset of the keywords. We give an incentive compatible, individually rational, Pareto-optimal, and deterministic mechanism for identical click-through rates. (3) We give an impossibility result for incentive compatible, individually rational, Pareto-optimal, and deterministic mechanisms for bidders with diminishing marginal valuations.","lang":"eng"}],"publication_status":"published","date_published":"2015-12-05T00:00:00Z","publisher":"Association for Computing Machinery","title":"On multiple keyword sponsored search auctions with budgets","date_updated":"2023-02-09T10:03:35Z","extern":"1","citation":{"chicago":"Colini-Baldeschi, Riccardo, Stefano Leonardi, Monika H Henzinger, and Martin Starnberger. “On Multiple Keyword Sponsored Search Auctions with Budgets.” <i>ACM Transactions on Economics and Computation</i>. Association for Computing Machinery, 2015. <a href=\"https://doi.org/10.1145/2818357\">https://doi.org/10.1145/2818357</a>.","ista":"Colini-Baldeschi R, Leonardi S, Henzinger MH, Starnberger M. 2015. On multiple keyword sponsored search auctions with budgets. ACM Transactions on Economics and Computation. 4(1), 2.","ama":"Colini-Baldeschi R, Leonardi S, Henzinger MH, Starnberger M. On multiple keyword sponsored search auctions with budgets. <i>ACM Transactions on Economics and Computation</i>. 2015;4(1). doi:<a href=\"https://doi.org/10.1145/2818357\">10.1145/2818357</a>","apa":"Colini-Baldeschi, R., Leonardi, S., Henzinger, M. H., &#38; Starnberger, M. (2015). On multiple keyword sponsored search auctions with budgets. <i>ACM Transactions on Economics and Computation</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/2818357\">https://doi.org/10.1145/2818357</a>","ieee":"R. Colini-Baldeschi, S. Leonardi, M. H. Henzinger, and M. Starnberger, “On multiple keyword sponsored search auctions with budgets,” <i>ACM Transactions on Economics and Computation</i>, vol. 4, no. 1. Association for Computing Machinery, 2015.","mla":"Colini-Baldeschi, Riccardo, et al. “On Multiple Keyword Sponsored Search Auctions with Budgets.” <i>ACM Transactions on Economics and Computation</i>, vol. 4, no. 1, 2, Association for Computing Machinery, 2015, doi:<a href=\"https://doi.org/10.1145/2818357\">10.1145/2818357</a>.","short":"R. Colini-Baldeschi, S. Leonardi, M.H. Henzinger, M. Starnberger, ACM Transactions on Economics and Computation 4 (2015)."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2022-07-27T11:54:56Z","_id":"11668","type":"journal_article","article_type":"original","status":"public","publication_identifier":{"issn":["2167-8375"],"eissn":["2167-8383"]},"main_file_link":[{"open_access":"1","url":"http://eprints.cs.univie.ac.at/3510/"}],"month":"12","issue":"1","article_number":"2","language":[{"iso":"eng"}],"article_processing_charge":"No","volume":4,"quality_controlled":"1","oa_version":"Submitted Version","author":[{"last_name":"Colini-Baldeschi","first_name":"Riccardo","full_name":"Colini-Baldeschi, Riccardo"},{"first_name":"Stefano","last_name":"Leonardi","full_name":"Leonardi, Stefano"},{"full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","orcid":"0000-0002-5008-6530","last_name":"Henzinger","first_name":"Monika H"},{"full_name":"Starnberger, Martin","last_name":"Starnberger","first_name":"Martin"}]},{"author":[{"first_name":"Paul","last_name":"Dütting","full_name":"Dütting, Paul"},{"full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","orcid":"0000-0002-5008-6530","last_name":"Henzinger","first_name":"Monika H"},{"last_name":"Starnberger","first_name":"Martin","full_name":"Starnberger, Martin"}],"quality_controlled":"1","oa_version":"Preprint","language":[{"iso":"eng"}],"volume":4,"article_processing_charge":"No","month":"12","article_number":"4","issue":"1","status":"public","publication_identifier":{"eissn":["2167-8383"],"issn":["2167-8375"]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1209.6448"}],"date_created":"2022-07-27T12:09:15Z","article_type":"original","type":"journal_article","_id":"11669","external_id":{"arxiv":["1209.6448"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","date_updated":"2022-09-09T12:08:37Z","citation":{"apa":"Dütting, P., Henzinger, M. H., &#38; Starnberger, M. (2015). Auctions for heterogeneous items and budget limits. <i>ACM Transactions on Economics and Computation</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/2818351\">https://doi.org/10.1145/2818351</a>","ama":"Dütting P, Henzinger MH, Starnberger M. Auctions for heterogeneous items and budget limits. <i>ACM Transactions on Economics and Computation</i>. 2015;4(1). doi:<a href=\"https://doi.org/10.1145/2818351\">10.1145/2818351</a>","ista":"Dütting P, Henzinger MH, Starnberger M. 2015. Auctions for heterogeneous items and budget limits. ACM Transactions on Economics and Computation. 4(1), 4.","chicago":"Dütting, Paul, Monika H Henzinger, and Martin Starnberger. “Auctions for Heterogeneous Items and Budget Limits.” <i>ACM Transactions on Economics and Computation</i>. Association for Computing Machinery, 2015. <a href=\"https://doi.org/10.1145/2818351\">https://doi.org/10.1145/2818351</a>.","ieee":"P. Dütting, M. H. Henzinger, and M. Starnberger, “Auctions for heterogeneous items and budget limits,” <i>ACM Transactions on Economics and Computation</i>, vol. 4, no. 1. Association for Computing Machinery, 2015.","short":"P. Dütting, M.H. Henzinger, M. Starnberger, ACM Transactions on Economics and Computation 4 (2015).","mla":"Dütting, Paul, et al. “Auctions for Heterogeneous Items and Budget Limits.” <i>ACM Transactions on Economics and Computation</i>, vol. 4, no. 1, 4, Association for Computing Machinery, 2015, doi:<a href=\"https://doi.org/10.1145/2818351\">10.1145/2818351</a>."},"date_published":"2015-12-05T00:00:00Z","publisher":"Association for Computing Machinery","title":"Auctions for heterogeneous items and budget limits","publication_status":"published","abstract":[{"text":"We study individual rational, Pareto-optimal, and incentive compatible mechanisms for auctions with heterogeneous items and budget limits. We consider settings with multiunit demand and additive valuations. For single-dimensional valuations we prove a positive result for randomized mechanisms, and a negative result for deterministic mechanisms. While the positive result allows for private budgets, the negative result is for public budgets. For multidimensional valuations and public budgets we prove an impossibility result that applies to deterministic and randomized mechanisms. Taken together this shows the power of randomization in certain settings with heterogeneous items, but it also shows its limitations.","lang":"eng"}],"day":"05","year":"2015","doi":"10.1145/2818351","oa":1,"arxiv":1,"intvolume":"         4","publication":"ACM Transactions on Economics and Computation","scopus_import":"1","keyword":["Algorithmic game theory","auction theory","Clinching auction","Pareto optimality","Budget limits"]},{"title":"Ad exchange: Envy-free auctions with mediators","date_published":"2015-12-09T00:00:00Z","publisher":"Springer Nature","abstract":[{"lang":"eng","text":"Ad exchanges are an emerging platform for trading advertisement slots on the web with billions of dollars revenue per year. Every time a user visits a web page, the publisher of that web page can ask an ad exchange to auction off the ad slots on this page to determine which advertisements are shown at which price. Due to the high volume of traffic, ad networks typically act as mediators for individual advertisers at ad exchanges. If multiple advertisers in an ad network are interested in the ad slots of the same auction, the ad network might use a “local” auction to resell the obtained ad slots among its advertisers.\r\n\r\nIn this work we want to deepen the theoretical understanding of these new markets by analyzing them from the viewpoint of combinatorial auctions. Prior work studied mostly single-item auctions, while we allow the advertisers to express richer preferences over multiple items. We develop a game-theoretic model for the entanglement of the central auction at the ad exchange with the local auctions at the ad networks. We consider the incentives of all three involved parties and suggest a three-party competitive equilibrium, an extension of the Walrasian equilibrium that ensures envy-freeness for all participants. We show the existence of a three-party competitive equilibrium and a polynomial-time algorithm to find one for gross-substitute bidder valuations."}],"publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1604.05562"]},"alternative_title":["LNCS"],"citation":{"short":"O. Ben-Zwi, M.H. Henzinger, V. Loitzenbauer, in:, 11th International Conference on Web and Internet Economics, Springer Nature, 2015, pp. 104–117.","mla":"Ben-Zwi, Oren, et al. “Ad Exchange: Envy-Free Auctions with Mediators.” <i>11th International Conference on Web and Internet Economics</i>, vol. 9470, Springer Nature, 2015, pp. 104–117, doi:<a href=\"https://doi.org/10.1007/978-3-662-48995-6_8\">10.1007/978-3-662-48995-6_8</a>.","chicago":"Ben-Zwi, Oren, Monika H Henzinger, and Veronika Loitzenbauer. “Ad Exchange: Envy-Free Auctions with Mediators.” In <i>11th International Conference on Web and Internet Economics</i>, 9470:104–117. Springer Nature, 2015. <a href=\"https://doi.org/10.1007/978-3-662-48995-6_8\">https://doi.org/10.1007/978-3-662-48995-6_8</a>.","ista":"Ben-Zwi O, Henzinger MH, Loitzenbauer V. 2015. Ad exchange: Envy-free auctions with mediators. 11th International Conference on Web and Internet Economics. WINE: International Conference on Web and Internet Economics, LNCS, vol. 9470, 104–117.","ama":"Ben-Zwi O, Henzinger MH, Loitzenbauer V. Ad exchange: Envy-free auctions with mediators. In: <i>11th International Conference on Web and Internet Economics</i>. Vol 9470. Springer Nature; 2015:104–117. doi:<a href=\"https://doi.org/10.1007/978-3-662-48995-6_8\">10.1007/978-3-662-48995-6_8</a>","apa":"Ben-Zwi, O., Henzinger, M. H., &#38; Loitzenbauer, V. (2015). Ad exchange: Envy-free auctions with mediators. In <i>11th International Conference on Web and Internet Economics</i> (Vol. 9470, pp. 104–117). Amsterdam, Netherlands: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-662-48995-6_8\">https://doi.org/10.1007/978-3-662-48995-6_8</a>","ieee":"O. Ben-Zwi, M. H. Henzinger, and V. Loitzenbauer, “Ad exchange: Envy-free auctions with mediators,” in <i>11th International Conference on Web and Internet Economics</i>, Amsterdam, Netherlands, 2015, vol. 9470, pp. 104–117."},"date_updated":"2023-02-10T09:06:23Z","extern":"1","publication":"11th International Conference on Web and Internet Economics","intvolume":"      9470","arxiv":1,"scopus_import":"1","year":"2015","doi":"10.1007/978-3-662-48995-6_8","page":"104–117","day":"09","oa":1,"article_processing_charge":"No","volume":9470,"language":[{"iso":"eng"}],"month":"12","author":[{"first_name":"Oren","last_name":"Ben-Zwi","full_name":"Ben-Zwi, Oren"},{"orcid":"0000-0002-5008-6530","last_name":"Henzinger","first_name":"Monika H","full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630"},{"last_name":"Loitzenbauer","first_name":"Veronika","full_name":"Loitzenbauer, Veronika"}],"oa_version":"Preprint","quality_controlled":"1","conference":{"start_date":"2015-09-09","end_date":"2015-09-12","location":"Amsterdam, Netherlands","name":"WINE: International Conference on Web and Internet Economics"},"status":"public","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.1604.05562"}],"publication_identifier":{"issn":["0302-9743"],"eisbn":["9783662489956"],"isbn":["9783662489949"]},"type":"conference","_id":"11773","date_created":"2022-08-08T13:33:56Z"},{"scopus_import":"1","intvolume":"      9470","arxiv":1,"publication":"11th International Conference on Web and Internet Economics","oa":1,"day":"09","year":"2015","doi":"10.1007/978-3-662-48995-6_17","page":"230–243","abstract":[{"text":"Combinatorial auctions (CA) are a well-studied area in algorithmic mechanism design. However, contrary to the standard model, empirical studies suggest that a bidder’s valuation often does not depend solely on the goods assigned to him. For instance, in adwords auctions an advertiser might not want his ads to be displayed next to his competitors’ ads. In this paper, we propose and analyze several natural graph-theoretic models that incorporate such negative externalities, in which bidders form a directed conflict graph with maximum out-degree Δ. We design algorithms and truthful mechanisms for social welfare maximization that attain approximation ratios depending on Δ.\r\n\r\nFor CA, our results are twofold: (1) A lottery that eliminates conflicts by discarding bidders/items independent of the bids. It allows to apply any truthful 𝛼-approximation mechanism for conflict-free valuations and yields an 𝒪(𝛼Δ)-approximation mechanism. (2) For fractionally sub-additive valuations, we design a rounding algorithm via a novel combination of a semi-definite program and a linear program, resulting in a cone program; the approximation ratio is 𝒪((ΔloglogΔ)/logΔ). The ratios are almost optimal given existing hardness results.\r\n\r\nFor adwords auctions, we present several algorithms for the most relevant scenario when the number of items is small. In particular, we design a truthful mechanism with approximation ratio 𝑜(Δ) when the number of items is only logarithmic in the number of bidders.","lang":"eng"}],"publication_status":"published","publisher":"Springer Nature","date_published":"2015-12-09T00:00:00Z","title":"Combinatorial auctions with conflict-based externalities","date_updated":"2023-02-10T09:08:30Z","extern":"1","citation":{"ama":"Cheung YK, Henzinger MH, Hoefer M, Starnberger M. Combinatorial auctions with conflict-based externalities. In: <i>11th International Conference on Web and Internet Economics</i>. Vol 9470. Springer Nature; 2015:230–243. doi:<a href=\"https://doi.org/10.1007/978-3-662-48995-6_17\">10.1007/978-3-662-48995-6_17</a>","ista":"Cheung YK, Henzinger MH, Hoefer M, Starnberger M. 2015. Combinatorial auctions with conflict-based externalities. 11th International Conference on Web and Internet Economics. WINE: International Conference on Web and Internet Economics, LNCS, vol. 9470, 230–243.","chicago":"Cheung, Yun Kuen, Monika H Henzinger, Martin Hoefer, and Martin Starnberger. “Combinatorial Auctions with Conflict-Based Externalities.” In <i>11th International Conference on Web and Internet Economics</i>, 9470:230–243. Springer Nature, 2015. <a href=\"https://doi.org/10.1007/978-3-662-48995-6_17\">https://doi.org/10.1007/978-3-662-48995-6_17</a>.","apa":"Cheung, Y. K., Henzinger, M. H., Hoefer, M., &#38; Starnberger, M. (2015). Combinatorial auctions with conflict-based externalities. In <i>11th International Conference on Web and Internet Economics</i> (Vol. 9470, pp. 230–243). Amsterdam, Netherlands: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-662-48995-6_17\">https://doi.org/10.1007/978-3-662-48995-6_17</a>","ieee":"Y. K. Cheung, M. H. Henzinger, M. Hoefer, and M. Starnberger, “Combinatorial auctions with conflict-based externalities,” in <i>11th International Conference on Web and Internet Economics</i>, Amsterdam, Netherlands, 2015, vol. 9470, pp. 230–243.","mla":"Cheung, Yun Kuen, et al. “Combinatorial Auctions with Conflict-Based Externalities.” <i>11th International Conference on Web and Internet Economics</i>, vol. 9470, Springer Nature, 2015, pp. 230–243, doi:<a href=\"https://doi.org/10.1007/978-3-662-48995-6_17\">10.1007/978-3-662-48995-6_17</a>.","short":"Y.K. Cheung, M.H. Henzinger, M. Hoefer, M. Starnberger, in:, 11th International Conference on Web and Internet Economics, Springer Nature, 2015, pp. 230–243."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","alternative_title":["LNCS"],"external_id":{"arxiv":["1509.09147"]},"conference":{"start_date":"2015-12-09","end_date":"2015-12-12","name":"WINE: International Conference on Web and Internet Economics","location":"Amsterdam, Netherlands"},"date_created":"2022-08-08T13:54:32Z","_id":"11774","type":"conference","publication_identifier":{"eisbn":["9783662489956"],"isbn":["9783662489949"],"issn":["0302-9743"]},"status":"public","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.1509.09147"}],"month":"12","language":[{"iso":"eng"}],"article_processing_charge":"No","volume":9470,"quality_controlled":"1","oa_version":"Preprint","author":[{"last_name":"Cheung","first_name":"Yun Kuen","full_name":"Cheung, Yun Kuen"},{"orcid":"0000-0002-5008-6530","first_name":"Monika H","last_name":"Henzinger","full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630"},{"first_name":"Martin","last_name":"Hoefer","full_name":"Hoefer, Martin"},{"full_name":"Starnberger, Martin","last_name":"Starnberger","first_name":"Martin"}]},{"publication_status":"published","abstract":[{"text":"Recently we presented the first algorithm for maintaining the set of nodes reachable from a source node in a directed graph that is modified by edge deletions with 𝑜(𝑚𝑛) total update time, where 𝑚 is the number of edges and 𝑛 is the number of nodes in the graph [Henzinger et al. STOC 2014]. The algorithm is a combination of several different algorithms, each for a different 𝑚 vs. 𝑛 trade-off. For the case of 𝑚=Θ(𝑛1.5) the running time is 𝑂(𝑛2.47), just barely below 𝑚𝑛=Θ(𝑛2.5). In this paper we simplify the previous algorithm using new algorithmic ideas and achieve an improved running time of 𝑂̃ (min(𝑚7/6𝑛2/3,𝑚3/4𝑛5/4+𝑜(1),𝑚2/3𝑛4/3+𝑜(1)+𝑚3/7𝑛12/7+𝑜(1))). This gives, e.g., 𝑂(𝑛2.36) for the notorious case 𝑚=Θ(𝑛1.5). We obtain the same upper bounds for the problem of maintaining the strongly connected components of a directed graph undergoing edge deletions. Our algorithms are correct with high probabililty against an oblivious adversary.","lang":"eng"}],"publisher":"Springer Nature","date_published":"2015-01-01T00:00:00Z","title":"Improved algorithms for decremental single-source reachability on directed graphs","extern":"1","date_updated":"2023-02-10T09:10:26Z","citation":{"ieee":"M. H. Henzinger, S. Krinninger, and D. Nanongkai, “Improved algorithms for decremental single-source reachability on directed graphs,” in <i>42nd International Colloquium on Automata, Languages and Programming</i>, Kyoto, Japan, 2015, vol. 9134, pp. 725–736.","ista":"Henzinger MH, Krinninger S, Nanongkai D. 2015. Improved algorithms for decremental single-source reachability on directed graphs. 42nd International Colloquium on Automata, Languages and Programming. ICALP: International Colloquium on Automata, Languages, and Programming, LNCS, vol. 9134, 725–736.","ama":"Henzinger MH, Krinninger S, Nanongkai D. Improved algorithms for decremental single-source reachability on directed graphs. In: <i>42nd International Colloquium on Automata, Languages and Programming</i>. Vol 9134. Springer Nature; 2015:725-736. doi:<a href=\"https://doi.org/10.1007/978-3-662-47672-7_59\">10.1007/978-3-662-47672-7_59</a>","chicago":"Henzinger, Monika H, Sebastian Krinninger, and Danupon Nanongkai. “Improved Algorithms for Decremental Single-Source Reachability on Directed Graphs.” In <i>42nd International Colloquium on Automata, Languages and Programming</i>, 9134:725–36. Springer Nature, 2015. <a href=\"https://doi.org/10.1007/978-3-662-47672-7_59\">https://doi.org/10.1007/978-3-662-47672-7_59</a>.","apa":"Henzinger, M. H., Krinninger, S., &#38; Nanongkai, D. (2015). Improved algorithms for decremental single-source reachability on directed graphs. In <i>42nd International Colloquium on Automata, Languages and Programming</i> (Vol. 9134, pp. 725–736). Kyoto, Japan: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-662-47672-7_59\">https://doi.org/10.1007/978-3-662-47672-7_59</a>","mla":"Henzinger, Monika H., et al. “Improved Algorithms for Decremental Single-Source Reachability on Directed Graphs.” <i>42nd International Colloquium on Automata, Languages and Programming</i>, vol. 9134, Springer Nature, 2015, pp. 725–36, doi:<a href=\"https://doi.org/10.1007/978-3-662-47672-7_59\">10.1007/978-3-662-47672-7_59</a>.","short":"M.H. Henzinger, S. Krinninger, D. Nanongkai, in:, 42nd International Colloquium on Automata, Languages and Programming, Springer Nature, 2015, pp. 725–736."},"external_id":{"arxiv":["1612.03856"]},"alternative_title":["LNCS"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","arxiv":1,"intvolume":"      9134","publication":"42nd International Colloquium on Automata, Languages and Programming","oa":1,"day":"01","year":"2015","doi":"10.1007/978-3-662-47672-7_59","page":"725 - 736","month":"01","language":[{"iso":"eng"}],"volume":9134,"article_processing_charge":"No","quality_controlled":"1","oa_version":"Preprint","author":[{"id":"540c9bbd-f2de-11ec-812d-d04a5be85630","full_name":"Henzinger, Monika H","first_name":"Monika H","last_name":"Henzinger","orcid":"0000-0002-5008-6530"},{"last_name":"Krinninger","first_name":"Sebastian","full_name":"Krinninger, Sebastian"},{"last_name":"Nanongkai","first_name":"Danupon","full_name":"Nanongkai, Danupon"}],"conference":{"name":"ICALP: International Colloquium on Automata, Languages, and Programming","location":"Kyoto, Japan","start_date":"2015-07-06","end_date":"2015-07-10"},"date_created":"2022-08-11T08:51:32Z","type":"conference","_id":"11785","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1612.03856"}],"status":"public","publication_identifier":{"isbn":["9783662476710"],"issn":["0302-9743"]}},{"title":"Design of dynamic algorithms via primal-dual method","publisher":"Springer Nature","date_published":"2015-01-01T00:00:00Z","publication_status":"published","abstract":[{"text":"In this paper, we develop a dynamic version of the primal-dual method for optimization problems, and apply it to obtain the following results. (1) For the dynamic set-cover problem, we maintain an 𝑂(𝑓2)-approximately optimal solution in 𝑂(𝑓⋅log(𝑚+𝑛)) amortized update time, where 𝑓 is the maximum “frequency” of an element, 𝑛 is the number of sets, and 𝑚 is the maximum number of elements in the universe at any point in time. (2) For the dynamic 𝑏-matching problem, we maintain an 𝑂(1)-approximately optimal solution in 𝑂(log3𝑛) amortized update time, where 𝑛 is the number of nodes in the graph.","lang":"eng"}],"external_id":{"arxiv":["1604.05337"]},"alternative_title":["LNCS"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"S. Bhattacharya, M. H. Henzinger, and G. F. Italiano, “Design of dynamic algorithms via primal-dual method,” in <i>42nd International Colloquium on Automata, Languages and Programming</i>, Kyoto, Japan, 2015, vol. 9134, pp. 206–218.","apa":"Bhattacharya, S., Henzinger, M. H., &#38; Italiano, G. F. (2015). Design of dynamic algorithms via primal-dual method. In <i>42nd International Colloquium on Automata, Languages and Programming</i> (Vol. 9134, pp. 206–218). Kyoto, Japan: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-662-47672-7_17\">https://doi.org/10.1007/978-3-662-47672-7_17</a>","ama":"Bhattacharya S, Henzinger MH, Italiano GF. Design of dynamic algorithms via primal-dual method. In: <i>42nd International Colloquium on Automata, Languages and Programming</i>. Vol 9134. Springer Nature; 2015:206-218. doi:<a href=\"https://doi.org/10.1007/978-3-662-47672-7_17\">10.1007/978-3-662-47672-7_17</a>","ista":"Bhattacharya S, Henzinger MH, Italiano GF. 2015. Design of dynamic algorithms via primal-dual method. 42nd International Colloquium on Automata, Languages and Programming. ICALP: International Colloquium on Automata, Languages, and Programming, LNCS, vol. 9134, 206–218.","chicago":"Bhattacharya, Sayan, Monika H Henzinger, and Giuseppe F. Italiano. “Design of Dynamic Algorithms via Primal-Dual Method.” In <i>42nd International Colloquium on Automata, Languages and Programming</i>, 9134:206–18. Springer Nature, 2015. <a href=\"https://doi.org/10.1007/978-3-662-47672-7_17\">https://doi.org/10.1007/978-3-662-47672-7_17</a>.","short":"S. Bhattacharya, M.H. Henzinger, G.F. Italiano, in:, 42nd International Colloquium on Automata, Languages and Programming, Springer Nature, 2015, pp. 206–218.","mla":"Bhattacharya, Sayan, et al. “Design of Dynamic Algorithms via Primal-Dual Method.” <i>42nd International Colloquium on Automata, Languages and Programming</i>, vol. 9134, Springer Nature, 2015, pp. 206–18, doi:<a href=\"https://doi.org/10.1007/978-3-662-47672-7_17\">10.1007/978-3-662-47672-7_17</a>."},"extern":"1","date_updated":"2023-02-10T09:13:31Z","publication":"42nd International Colloquium on Automata, Languages and Programming","arxiv":1,"intvolume":"      9134","scopus_import":"1","day":"01","doi":"10.1007/978-3-662-47672-7_17","page":"206 - 218","year":"2015","oa":1,"volume":9134,"article_processing_charge":"No","language":[{"iso":"eng"}],"month":"01","author":[{"first_name":"Sayan","last_name":"Bhattacharya","full_name":"Bhattacharya, Sayan"},{"full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","orcid":"0000-0002-5008-6530","last_name":"Henzinger","first_name":"Monika H"},{"full_name":"Italiano, Giuseppe F.","last_name":"Italiano","first_name":"Giuseppe F."}],"oa_version":"Preprint","quality_controlled":"1","conference":{"start_date":"2015-07-06","end_date":"2015-07-10","location":"Kyoto, Japan","name":"ICALP: International Colloquium on Automata, Languages, and Programming"},"publication_identifier":{"isbn":["9783662476710"],"issn":["0302-9743"]},"main_file_link":[{"url":"https://arxiv.org/abs/1604.05337","open_access":"1"}],"status":"public","_id":"11786","type":"conference","date_created":"2022-08-11T09:28:49Z"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","alternative_title":["LNCS"],"external_id":{"arxiv":["1412.6466"]},"date_updated":"2023-02-10T09:21:47Z","extern":"1","citation":{"short":"M.H. Henzinger, S. Krinninger, V. Loitzenbauer, in:, 2nd International Colloquium on Automata, Languages and Programming, Springer Nature, 2015, pp. 713–724.","mla":"Henzinger, Monika H., et al. “Finding 2-Edge and 2-Vertex Strongly Connected Components in Quadratic Time.” <i>2nd International Colloquium on Automata, Languages and Programming</i>, vol. 9134, Springer Nature, 2015, pp. 713–24, doi:<a href=\"https://doi.org/10.1007/978-3-662-47672-7_58\">10.1007/978-3-662-47672-7_58</a>.","apa":"Henzinger, M. H., Krinninger, S., &#38; Loitzenbauer, V. (2015). Finding 2-edge and 2-vertex strongly connected components in quadratic time. In <i>2nd International Colloquium on Automata, Languages and Programming</i> (Vol. 9134, pp. 713–724). Kyoto, Japan: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-662-47672-7_58\">https://doi.org/10.1007/978-3-662-47672-7_58</a>","ista":"Henzinger MH, Krinninger S, Loitzenbauer V. 2015. Finding 2-edge and 2-vertex strongly connected components in quadratic time. 2nd International Colloquium on Automata, Languages and Programming. ICALP: International Colloquium on Automata, Languages, and Programming, LNCS, vol. 9134, 713–724.","ama":"Henzinger MH, Krinninger S, Loitzenbauer V. Finding 2-edge and 2-vertex strongly connected components in quadratic time. In: <i>2nd International Colloquium on Automata, Languages and Programming</i>. Vol 9134. Springer Nature; 2015:713-724. doi:<a href=\"https://doi.org/10.1007/978-3-662-47672-7_58\">10.1007/978-3-662-47672-7_58</a>","chicago":"Henzinger, Monika H, Sebastian Krinninger, and Veronika Loitzenbauer. “Finding 2-Edge and 2-Vertex Strongly Connected Components in Quadratic Time.” In <i>2nd International Colloquium on Automata, Languages and Programming</i>, 9134:713–24. Springer Nature, 2015. <a href=\"https://doi.org/10.1007/978-3-662-47672-7_58\">https://doi.org/10.1007/978-3-662-47672-7_58</a>.","ieee":"M. H. Henzinger, S. Krinninger, and V. Loitzenbauer, “Finding 2-edge and 2-vertex strongly connected components in quadratic time,” in <i>2nd International Colloquium on Automata, Languages and Programming</i>, Kyoto, Japan, 2015, vol. 9134, pp. 713–724."},"publisher":"Springer Nature","date_published":"2015-07-06T00:00:00Z","title":"Finding 2-edge and 2-vertex strongly connected components in quadratic time","abstract":[{"text":"We present faster algorithms for computing the 2-edge and 2-vertex strongly connected components of a directed graph. While in undirected graphs the 2-edge and 2-vertex connected components can be found in linear time, in directed graphs with m edges and n vertices only rather simple O(m n)-time algorithms were known. We use a hierarchical sparsification technique to obtain algorithms that run in time 𝑂(𝑛2). For 2-edge strongly connected components our algorithm gives the first running time improvement in 20 years. Additionally we present an 𝑂(𝑚2/log𝑛)-time algorithm for 2-edge strongly connected components, and thus improve over the O(m n) running time also when 𝑚=𝑂(𝑛). Our approach extends to k-edge and k-vertex strongly connected components for any constant k with a running time of 𝑂(𝑛2log𝑛) for k-edge-connectivity and 𝑂(𝑛3) for k-vertex-connectivity.","lang":"eng"}],"publication_status":"published","year":"2015","page":"713 - 724","doi":"10.1007/978-3-662-47672-7_58","day":"06","oa":1,"intvolume":"      9134","arxiv":1,"publication":"2nd International Colloquium on Automata, Languages and Programming","scopus_import":"1","author":[{"orcid":"0000-0002-5008-6530","last_name":"Henzinger","first_name":"Monika H","full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630"},{"last_name":"Krinninger","first_name":"Sebastian","full_name":"Krinninger, Sebastian"},{"full_name":"Loitzenbauer, Veronika","last_name":"Loitzenbauer","first_name":"Veronika"}],"quality_controlled":"1","oa_version":"Preprint","language":[{"iso":"eng"}],"article_processing_charge":"No","volume":9134,"month":"07","publication_identifier":{"issn":["0302-9743"],"isbn":["9783662476710"]},"status":"public","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1412.6466"}],"date_created":"2022-08-11T09:38:34Z","type":"conference","_id":"11787","conference":{"name":"ICALP: International Colloquium on Automata, Languages, and Programming","location":"Kyoto, Japan","start_date":"2015-07-06","end_date":"2015-07-10"}},{"status":"public","publication_identifier":{"issn":["0302-9743"]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1604.05603"}],"date_created":"2022-08-11T09:43:32Z","type":"conference","_id":"11788","conference":{"start_date":"2014-09-11","end_date":"2014-09-12","name":"WAOA: International Workshop on Approximation and Online Algorithms","location":"Wroclaw, Poland"},"author":[{"first_name":"Wolfgang","last_name":"Dvořák","full_name":"Dvořák, Wolfgang"},{"first_name":"Monika H","last_name":"Henzinger","orcid":"0000-0002-5008-6530","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","full_name":"Henzinger, Monika H"}],"quality_controlled":"1","oa_version":"Preprint","language":[{"iso":"eng"}],"volume":8952,"article_processing_charge":"No","month":"01","day":"01","page":"156–167","year":"2015","doi":"10.1007/978-3-319-18263-6_14","oa":1,"arxiv":1,"intvolume":"      8952","publication":"12th International Workshop of Approximation and Online Algorithms","scopus_import":"1","external_id":{"arxiv":["1604.05603"]},"alternative_title":["LNCS"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","date_updated":"2023-02-10T09:26:06Z","citation":{"ieee":"W. Dvořák and M. H. Henzinger, “Online ad assignment with an ad exchange,” in <i>12th International Workshop of Approximation and Online Algorithms</i>, Wroclaw, Poland, 2015, vol. 8952, pp. 156–167.","apa":"Dvořák, W., &#38; Henzinger, M. H. (2015). Online ad assignment with an ad exchange. In <i>12th International Workshop of Approximation and Online Algorithms</i> (Vol. 8952, pp. 156–167). Wroclaw, Poland: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-319-18263-6_14\">https://doi.org/10.1007/978-3-319-18263-6_14</a>","ama":"Dvořák W, Henzinger MH. Online ad assignment with an ad exchange. In: <i>12th International Workshop of Approximation and Online Algorithms</i>. Vol 8952. Springer Nature; 2015:156–167. doi:<a href=\"https://doi.org/10.1007/978-3-319-18263-6_14\">10.1007/978-3-319-18263-6_14</a>","ista":"Dvořák W, Henzinger MH. 2015. Online ad assignment with an ad exchange. 12th International Workshop of Approximation and Online Algorithms. WAOA: International Workshop on Approximation and Online Algorithms, LNCS, vol. 8952, 156–167.","chicago":"Dvořák, Wolfgang, and Monika H Henzinger. “Online Ad Assignment with an Ad Exchange.” In <i>12th International Workshop of Approximation and Online Algorithms</i>, 8952:156–167. Springer Nature, 2015. <a href=\"https://doi.org/10.1007/978-3-319-18263-6_14\">https://doi.org/10.1007/978-3-319-18263-6_14</a>.","short":"W. Dvořák, M.H. Henzinger, in:, 12th International Workshop of Approximation and Online Algorithms, Springer Nature, 2015, pp. 156–167.","mla":"Dvořák, Wolfgang, and Monika H. Henzinger. “Online Ad Assignment with an Ad Exchange.” <i>12th International Workshop of Approximation and Online Algorithms</i>, vol. 8952, Springer Nature, 2015, pp. 156–167, doi:<a href=\"https://doi.org/10.1007/978-3-319-18263-6_14\">10.1007/978-3-319-18263-6_14</a>."},"publisher":"Springer Nature","date_published":"2015-01-01T00:00:00Z","title":"Online ad assignment with an ad exchange","publication_status":"published","abstract":[{"lang":"eng","text":"Ad exchanges are becoming an increasingly popular way to sell advertisement slots on the internet. An ad exchange is basically a spot market for ad impressions. A publisher who has already signed contracts reserving advertisement impressions on his pages can choose between assigning a new ad impression for a new page view to a contracted advertiser or to sell it at an ad exchange. This leads to an online revenue maximization problem for the publisher. Given a new impression to sell decide whether (a) to assign it to a contracted advertiser and if so to which one or (b) to sell it at the ad exchange and if so at which reserve price. We make no assumptions about the distribution of the advertiser valuations that participate in the ad exchange and show that there exists a simple primal-dual based online algorithm, whose lower bound for the revenue converges to 𝑅𝐴𝐷𝑋+𝑅𝐴(1−1/𝑒), where 𝑅𝐴𝐷𝑋 is the revenue that the optimum algorithm achieves from the ad exchange and 𝑅𝐴 is the revenue that the optimum algorithm achieves from the contracted advertisers."}]},{"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1510.08820"}],"page":"242","year":"2015","day":"29","status":"public","type":"preprint","_id":"7779","date_created":"2020-04-30T12:16:18Z","oa":1,"publication":"arXiv:1510.08820","arxiv":1,"external_id":{"arxiv":["1510.08820"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Goodrich, Carl Peter","id":"EB352CD2-F68A-11E9-89C5-A432E6697425","orcid":"0000-0002-1307-5074","last_name":"Goodrich","first_name":"Carl Peter"}],"oa_version":"Preprint","citation":{"ieee":"C. P. Goodrich, “Unearthing the anticrystal: Criticality in the linear response of  disordered solids,” <i>arXiv:1510.08820</i>. 2015.","apa":"Goodrich, C. P. (2015). Unearthing the anticrystal: Criticality in the linear response of  disordered solids. <i>arXiv:1510.08820</i>.","ista":"Goodrich CP. 2015. Unearthing the anticrystal: Criticality in the linear response of  disordered solids. arXiv:1510.08820, .","chicago":"Goodrich, Carl Peter. “Unearthing the Anticrystal: Criticality in the Linear Response of  Disordered Solids.” <i>ArXiv:1510.08820</i>, 2015.","ama":"Goodrich CP. Unearthing the anticrystal: Criticality in the linear response of  disordered solids. <i>arXiv:151008820</i>. 2015.","short":"C.P. Goodrich, ArXiv:1510.08820 (2015).","mla":"Goodrich, Carl Peter. “Unearthing the Anticrystal: Criticality in the Linear Response of  Disordered Solids.” <i>ArXiv:1510.08820</i>, 2015."},"extern":"1","date_updated":"2021-01-12T08:15:28Z","title":"Unearthing the anticrystal: Criticality in the linear response of  disordered solids","article_processing_charge":"No","language":[{"iso":"eng"}],"date_published":"2015-10-29T00:00:00Z","publication_status":"published","month":"10","abstract":[{"text":"The fact that a disordered material is not constrained in its properties in\r\nthe same way as a crystal presents significant and yet largely untapped\r\npotential for novel material design. However, unlike their crystalline\r\ncounterparts, disordered solids are not well understood. One of the primary\r\nobstacles is the lack of a theoretical framework for thinking about disorder\r\nand its relation to mechanical properties. To this end, we study an idealized\r\nsystem of frictionless athermal soft spheres that, when compressed, undergoes a\r\njamming phase transition with diverging length scales and clean power-law\r\nsignatures. This critical point is the cornerstone of a much larger \"jamming\r\nscenario\" that has the potential to provide the essential theoretical\r\nfoundation necessary for a unified understanding of the mechanics of disordered\r\nsolids. We begin by showing that jammed sphere packings have a valid linear\r\nregime despite the presence of \"contact nonlinearities.\" We then investigate\r\nthe critical nature of the transition, focusing on diverging length scales and\r\nfinite-size effects. Next, we argue that jamming plays the same role for\r\ndisordered solids as the perfect crystal plays for crystalline solids. Not only\r\ncan it be considered an idealized starting point for understanding disordered\r\nmaterials, but it can even influence systems that have a relatively high amount\r\nof crystalline order. The behavior of solids can thus be thought of as existing\r\non a spectrum, with the perfect crystal and the jamming transition at opposing\r\nends. Finally, we introduce a new principle wherein the contribution of an\r\nindividual bond to one global property is independent of its contribution to\r\nanother. This principle allows the different global responses of a disordered\r\nsystem to be manipulated independently and provides a great deal of flexibility\r\nin designing materials with unique, textured and tunable properties.","lang":"eng"}]},{"intvolume":"      9363","arxiv":1,"publist_id":"6880","oa":1,"acknowledgement":"P. Kuznetsov-The author is supported by the Agence Nationale de la Recherche, ANR-14-CE35-0010-01, project DISCMAT. N. Shavit-Support is gratfeully acknowledgedfrom the National Science Foundation under grants CCF-1217921, CCF-1201926, and IIS-1447786, the Department of Energy under grant ER26116/DE-SC0008923, and the Oracle and Intel corporations.","page":"185 - 199","year":"2015","doi":"10.1007/978-3-662-48653-5_13","day":"01","abstract":[{"text":"Several Hybrid Transactional Memory (HyTM) schemes have recently been proposed to complement the fast, but best-effort nature of Hardware Transactional Memory (HTM) with a slow, reliable software backup. However, the costs of providing concurrency between hardware and software transactions in HyTM are still not well understood. In this paper, we propose a general model for HyTM implementations, which captures the ability of hardware transactions to buffer memory accesses. The model allows us to formally quantify and analyze the amount of overhead (instrumentation) caused by the potential presence of software transactions.We prove that (1) it is impossible to build a strictly serializable HyTM implementation that has both uninstrumented reads and writes, even for very weak progress guarantees, and (2) the instrumentation cost incurred by a hardware transaction in any progressive opaque HyTM is linear in the size of the transaction’s data set.We further describe two implementations which exhibit optimal instrumentation costs for two different progress conditions. In sum, this paper proposes the first formal HyTM model and captures for the first time the trade-off between the degree of hardware-software TM concurrency and the amount of instrumentation overhead.","lang":"eng"}],"publication_status":"published","date_published":"2015-01-01T00:00:00Z","publisher":"Springer","title":"Inherent limitations of hybrid transactional memory","date_updated":"2023-02-23T13:17:35Z","extern":"1","citation":{"apa":"Alistarh, D.-A., Kopinsky, J., Kuznetsov, P., Ravi, S., &#38; Shavit, N. (2015). Inherent limitations of hybrid transactional memory (Vol. 9363, pp. 185–199). Presented at the DISC: Distributed Computing, Springer. <a href=\"https://doi.org/10.1007/978-3-662-48653-5_13\">https://doi.org/10.1007/978-3-662-48653-5_13</a>","ista":"Alistarh D-A, Kopinsky J, Kuznetsov P, Ravi S, Shavit N. 2015. Inherent limitations of hybrid transactional memory. DISC: Distributed Computing, LNCS, vol. 9363, 185–199.","chicago":"Alistarh, Dan-Adrian, Justin Kopinsky, Petr Kuznetsov, Srivatsan Ravi, and Nir Shavit. “Inherent Limitations of Hybrid Transactional Memory,” 9363:185–99. Springer, 2015. <a href=\"https://doi.org/10.1007/978-3-662-48653-5_13\">https://doi.org/10.1007/978-3-662-48653-5_13</a>.","ama":"Alistarh D-A, Kopinsky J, Kuznetsov P, Ravi S, Shavit N. Inherent limitations of hybrid transactional memory. In: Vol 9363. Springer; 2015:185-199. doi:<a href=\"https://doi.org/10.1007/978-3-662-48653-5_13\">10.1007/978-3-662-48653-5_13</a>","ieee":"D.-A. Alistarh, J. Kopinsky, P. Kuznetsov, S. Ravi, and N. Shavit, “Inherent limitations of hybrid transactional memory,” presented at the DISC: Distributed Computing, 2015, vol. 9363, pp. 185–199.","short":"D.-A. Alistarh, J. Kopinsky, P. Kuznetsov, S. Ravi, N. Shavit, in:, Springer, 2015, pp. 185–199.","mla":"Alistarh, Dan-Adrian, et al. <i>Inherent Limitations of Hybrid Transactional Memory</i>. Vol. 9363, Springer, 2015, pp. 185–99, doi:<a href=\"https://doi.org/10.1007/978-3-662-48653-5_13\">10.1007/978-3-662-48653-5_13</a>."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1405.5689"]},"alternative_title":["LNCS"],"conference":{"name":"DISC: Distributed Computing"},"date_created":"2018-12-11T11:48:27Z","_id":"778","type":"conference","status":"public","main_file_link":[{"url":"https://arxiv.org/abs/1405.5689","open_access":"1"}],"month":"01","language":[{"iso":"eng"}],"article_processing_charge":"No","volume":9363,"quality_controlled":"1","oa_version":"None","author":[{"full_name":"Alistarh, Dan-Adrian","id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3650-940X","last_name":"Alistarh","first_name":"Dan-Adrian"},{"full_name":"Kopinsky, Justin","last_name":"Kopinsky","first_name":"Justin"},{"full_name":"Kuznetsov, Petr","first_name":"Petr","last_name":"Kuznetsov"},{"full_name":"Ravi, Srivatsan","first_name":"Srivatsan","last_name":"Ravi"},{"last_name":"Shavit","first_name":"Nir","full_name":"Shavit, Nir"}]},{"oa_version":"Preprint","citation":{"mla":"Alistarh, Dan-Adrian, and Rati Gelashvili. <i>Polylogarithmic-Time Leader Election in Population Protocols</i>. Vol. 9135, Springer, 2015, pp. 479–91, doi:<a href=\"https://doi.org/10.1007/978-3-662-47666-6_38\">10.1007/978-3-662-47666-6_38</a>.","short":"D.-A. Alistarh, R. Gelashvili, in:, Springer, 2015, pp. 479–491.","apa":"Alistarh, D.-A., &#38; Gelashvili, R. (2015). Polylogarithmic-time leader election in population protocols (Vol. 9135, pp. 479–491). Presented at the ICALP: International Colloquium on Automota, Languages and Programming, Springer. <a href=\"https://doi.org/10.1007/978-3-662-47666-6_38\">https://doi.org/10.1007/978-3-662-47666-6_38</a>","ista":"Alistarh D-A, Gelashvili R. 2015. Polylogarithmic-time leader election in population protocols. ICALP: International Colloquium on Automota, Languages and Programming vol. 9135, 479–491.","chicago":"Alistarh, Dan-Adrian, and Rati Gelashvili. “Polylogarithmic-Time Leader Election in Population Protocols,” 9135:479–91. Springer, 2015. <a href=\"https://doi.org/10.1007/978-3-662-47666-6_38\">https://doi.org/10.1007/978-3-662-47666-6_38</a>.","ama":"Alistarh D-A, Gelashvili R. Polylogarithmic-time leader election in population protocols. In: Vol 9135. Springer; 2015:479-491. doi:<a href=\"https://doi.org/10.1007/978-3-662-47666-6_38\">10.1007/978-3-662-47666-6_38</a>","ieee":"D.-A. Alistarh and R. Gelashvili, “Polylogarithmic-time leader election in population protocols,” presented at the ICALP: International Colloquium on Automota, Languages and Programming, 2015, vol. 9135, pp. 479–491."},"date_updated":"2023-02-23T13:18:11Z","extern":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1502.05745"]},"author":[{"full_name":"Alistarh, Dan-Adrian","id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3650-940X","first_name":"Dan-Adrian","last_name":"Alistarh"},{"full_name":"Gelashvili, Rati","first_name":"Rati","last_name":"Gelashvili"}],"abstract":[{"text":"Population protocols are networks of finite-state agents, interacting randomly, and updating their states using simple rules. Despite their extreme simplicity, these systems have been shown to cooperatively perform complex computational tasks, such as simulating register machines to compute standard arithmetic functions. The election of a unique leader agent is a key requirement in such computational constructions. Yet, the fastest currently known population protocol for electing a leader only has linear convergence time, and it has recently been shown that no population protocol using a constant number of states per node may overcome this linear bound. In this paper, we give the first population protocol for leader election with polylogarithmic convergence time, using polylogarithmic memory states per node. The protocol structure is quite simple: each node has an associated value, and is either a leader (still in contention) or a minion (following some leader). A leader keeps incrementing its value and “defeats” other leaders in one-to-one interactions, and will drop from contention and become a minion if it meets a leader with higher value. Importantly, a leader also drops out if it meets a minion with higher absolute value. While these rules are quite simple, the proof that this algorithm achieves polylogarithmic convergence time is non-trivial. In particular, the argument combines careful use of concentration inequalities with anti-concentration bounds, showing that the leaders’ values become spread apart as the execution progresses, which in turn implies that straggling leaders get quickly eliminated. We complement our analysis with empirical results, showing that our protocol converges extremely fast, even for large network sizes.","lang":"eng"}],"month":"01","publication_status":"published","title":"Polylogarithmic-time leader election in population protocols","volume":9135,"language":[{"iso":"eng"}],"date_published":"2015-01-01T00:00:00Z","publisher":"Springer","_id":"780","type":"conference","date_created":"2018-12-11T11:48:28Z","oa":1,"status":"public","doi":"10.1007/978-3-662-47666-6_38","day":"01","year":"2015","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1502.05745"}],"page":"479 - 491","acknowledgement":"Support is gratefully acknowledged from the National Science Foundation under grants CCF-1217921, CCF-1301926, and IIS-1447786, the Department of Energy under grant ER26116/DE-SC0008923, and the Oracle and Intel corporations.”","intvolume":"      9135","conference":{"name":"ICALP: International Colloquium on Automota, Languages and Programming"},"publist_id":"6877","arxiv":1},{"article_processing_charge":"No","title":"How to elect a leader faster than a tournament","volume":"2015-July","date_published":"2015-07-21T00:00:00Z","language":[{"iso":"eng"}],"publisher":"ACM","abstract":[{"text":"The problem of electing a leader from among n contenders is one of the fundamental questions in distributed computing. In its simplest formulation, the task is as follows: given n processors, all participants must eventually return a win or lose indication, such that a single contender may win. Despite a considerable amount of work on leader election, the following question is still open: can we elect a leader in an asynchronous fault-prone system faster than just running a Θ(log n)-time tournament, against a strong adaptive adversary? In this paper, we answer this question in the affirmative, improving on a decades-old upper bound. We introduce two new algorithmic ideas to reduce the time complexity of electing a leader to O(log∗ n), using O(n2) point-to-point messages. A non-trivial application of our algorithm is a new upper bound for the tight renaming problem, assigning n items to the n participants in expected O(log2 n) time and O(n2) messages. We complement our results with lower bound of Ω(n2) messages for solving these two problems, closing the question of their message complexity.","lang":"eng"}],"month":"07","publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Alistarh, Dan-Adrian","id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3650-940X","last_name":"Alistarh","first_name":"Dan-Adrian"},{"full_name":"Gelashvili, Rati","last_name":"Gelashvili","first_name":"Rati"},{"full_name":"Vladu, Adrian","first_name":"Adrian","last_name":"Vladu"}],"citation":{"ieee":"D.-A. Alistarh, R. Gelashvili, and A. Vladu, “How to elect a leader faster than a tournament,” presented at the PODC: Principles of Distributed Computing, 2015, vol. 2015–July, pp. 365–374.","ista":"Alistarh D-A, Gelashvili R, Vladu A. 2015. How to elect a leader faster than a tournament. PODC: Principles of Distributed Computing vol. 2015–July, 365–374.","chicago":"Alistarh, Dan-Adrian, Rati Gelashvili, and Adrian Vladu. “How to Elect a Leader Faster than a Tournament,” 2015–July:365–74. ACM, 2015. <a href=\"https://doi.org/10.1145/2767386.2767420\">https://doi.org/10.1145/2767386.2767420</a>.","ama":"Alistarh D-A, Gelashvili R, Vladu A. How to elect a leader faster than a tournament. In: Vol 2015-July. ACM; 2015:365-374. doi:<a href=\"https://doi.org/10.1145/2767386.2767420\">10.1145/2767386.2767420</a>","apa":"Alistarh, D.-A., Gelashvili, R., &#38; Vladu, A. (2015). How to elect a leader faster than a tournament (Vol. 2015–July, pp. 365–374). Presented at the PODC: Principles of Distributed Computing, ACM. <a href=\"https://doi.org/10.1145/2767386.2767420\">https://doi.org/10.1145/2767386.2767420</a>","mla":"Alistarh, Dan-Adrian, et al. <i>How to Elect a Leader Faster than a Tournament</i>. Vol. 2015–July, ACM, 2015, pp. 365–74, doi:<a href=\"https://doi.org/10.1145/2767386.2767420\">10.1145/2767386.2767420</a>.","short":"D.-A. Alistarh, R. Gelashvili, A. Vladu, in:, ACM, 2015, pp. 365–374."},"oa_version":"None","date_updated":"2023-02-23T13:18:55Z","extern":"1","conference":{"name":"PODC: Principles of Distributed Computing"},"publist_id":"6875","page":"365 - 374","year":"2015","day":"21","status":"public","main_file_link":[{"url":"https://arxiv.org/abs/1411.1001","open_access":"1"}],"doi":"10.1145/2767386.2767420","acknowledgement":"Support is gratefully acknowledged from the National Science Foundation under grants CCF-1217921, CCF-1301926,\r\nand  IIS-1447786,  the  Department  of  Energy  under  grant\r\nER26116/DE-SC0008923,  and the  Oracle  and Intel  corporations.\r\nThe authors would like to thank Prof.  Nir Shavit for ad-\r\nvice and encouragement during this work,  and the anonymous reviewers for their very useful suggestions.","_id":"783","type":"conference","date_created":"2018-12-11T11:48:28Z","oa":1},{"publication":"arXiv","arxiv":1,"related_material":{"record":[{"status":"public","relation":"later_version","id":"9308"},{"status":"public","id":"10220","relation":"later_version"},{"id":"8156","relation":"dissertation_contains","status":"public"}]},"status":"public","main_file_link":[{"url":"https://arxiv.org/abs/1511.03501","open_access":"1"}],"year":"2015","day":"15","acknowledgement":"We would like to thank A. Klyachko, V. Krushkal, S. Melikhov, M. Tancer, P. Teichner and anonymous referees for helpful discussions.","type":"preprint","_id":"8183","date_created":"2020-07-30T10:45:19Z","oa":1,"article_processing_charge":"No","title":"Eliminating higher-multiplicity intersections, III. Codimension 2","date_published":"2015-11-15T00:00:00Z","language":[{"iso":"eng"}],"article_number":"1511.03501","abstract":[{"text":"We study conditions under which a finite simplicial complex $K$ can be mapped to $\\mathbb R^d$ without higher-multiplicity intersections. An almost $r$-embedding is a map $f: K\\to \\mathbb R^d$ such that the images of any $r$\r\npairwise disjoint simplices of $K$ do not have a common point. We show that if $r$ is not a prime power and $d\\geq 2r+1$, then there is a counterexample to the topological Tverberg conjecture, i.e., there is an almost $r$-embedding of\r\nthe $(d+1)(r-1)$-simplex in $\\mathbb R^d$. This improves on previous constructions of counterexamples (for $d\\geq 3r$) based on a series of papers by M. \\\"Ozaydin, M. Gromov, P. Blagojevi\\'c, F. Frick, G. Ziegler, and the second and fourth present authors. The counterexamples are obtained by proving the following algebraic criterion in codimension 2: If $r\\ge3$ and if $K$ is a finite $2(r-1)$-complex then there exists an almost $r$-embedding $K\\to \\mathbb R^{2r}$ if and only if there exists a general position PL map $f:K\\to \\mathbb R^{2r}$ such that the algebraic intersection number of the $f$-images of any $r$ pairwise disjoint simplices of $K$ is zero. This result can be restated in terms of cohomological obstructions or equivariant maps, and extends an analogous codimension 3 criterion by the second and fourth authors. As another application we classify ornaments $f:S^3 \\sqcup S^3\\sqcup S^3\\to \\mathbb R^5$ up to ornament\r\nconcordance. It follows from work of M. Freedman, V. Krushkal and P. Teichner that the analogous criterion for $r=2$ is false. We prove a lemma on singular higher-dimensional Borromean rings, yielding an elementary proof of the counterexample.","lang":"eng"}],"month":"11","publication_status":"submitted","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1511.03501"]},"author":[{"first_name":"Sergey","last_name":"Avvakumov","full_name":"Avvakumov, Sergey","id":"3827DAC8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Mabillard","first_name":"Isaac","id":"32BF9DAA-F248-11E8-B48F-1D18A9856A87","full_name":"Mabillard, Isaac"},{"last_name":"Skopenkov","first_name":"A.","full_name":"Skopenkov, A."},{"orcid":"0000-0002-1494-0568","last_name":"Wagner","first_name":"Uli","full_name":"Wagner, Uli","id":"36690CA2-F248-11E8-B48F-1D18A9856A87"}],"citation":{"mla":"Avvakumov, Sergey, et al. “Eliminating Higher-Multiplicity Intersections, III. Codimension 2.” <i>ArXiv</i>, 1511.03501.","short":"S. Avvakumov, I. Mabillard, A. Skopenkov, U. Wagner, ArXiv (n.d.).","ieee":"S. Avvakumov, I. Mabillard, A. Skopenkov, and U. Wagner, “Eliminating higher-multiplicity intersections, III. Codimension 2,” <i>arXiv</i>. .","chicago":"Avvakumov, Sergey, Isaac Mabillard, A. Skopenkov, and Uli Wagner. “Eliminating Higher-Multiplicity Intersections, III. Codimension 2.” <i>ArXiv</i>, n.d.","ama":"Avvakumov S, Mabillard I, Skopenkov A, Wagner U. Eliminating higher-multiplicity intersections, III. Codimension 2. <i>arXiv</i>.","ista":"Avvakumov S, Mabillard I, Skopenkov A, Wagner U. Eliminating higher-multiplicity intersections, III. Codimension 2. arXiv, 1511.03501.","apa":"Avvakumov, S., Mabillard, I., Skopenkov, A., &#38; Wagner, U. (n.d.). Eliminating higher-multiplicity intersections, III. Codimension 2. <i>arXiv</i>."},"oa_version":"Preprint","date_updated":"2023-09-07T13:12:17Z","department":[{"_id":"UlWa"}]},{"citation":{"apa":"Hammer, M., Krueger Burg, D., Tuffy, L., Cooper, B., Taschenberger, H., Goswami, S., … Brose, N. (2015). Perturbed hippocampal synaptic inhibition and γ-oscillations in a neuroligin-4 knockout mouse model of autism. <i>Cell Reports</i>. Cell Press. <a href=\"https://doi.org/10.1016/j.celrep.2015.09.011\">https://doi.org/10.1016/j.celrep.2015.09.011</a>","ama":"Hammer M, Krueger Burg D, Tuffy L, et al. Perturbed hippocampal synaptic inhibition and γ-oscillations in a neuroligin-4 knockout mouse model of autism. <i>Cell Reports</i>. 2015;13(3):516-523. doi:<a href=\"https://doi.org/10.1016/j.celrep.2015.09.011\">10.1016/j.celrep.2015.09.011</a>","ista":"Hammer M, Krueger Burg D, Tuffy L, Cooper B, Taschenberger H, Goswami S, Ehrenreich H, Jonas PM, Varoqueaux F, Rhee J, Brose N. 2015. Perturbed hippocampal synaptic inhibition and γ-oscillations in a neuroligin-4 knockout mouse model of autism. Cell Reports. 13(3), 516–523.","chicago":"Hammer, Matthieu, Dilja Krueger Burg, Liam Tuffy, Benjamin Cooper, Holger Taschenberger, Sarit Goswami, Hannelore Ehrenreich, et al. “Perturbed Hippocampal Synaptic Inhibition and γ-Oscillations in a Neuroligin-4 Knockout Mouse Model of Autism.” <i>Cell Reports</i>. Cell Press, 2015. <a href=\"https://doi.org/10.1016/j.celrep.2015.09.011\">https://doi.org/10.1016/j.celrep.2015.09.011</a>.","ieee":"M. Hammer <i>et al.</i>, “Perturbed hippocampal synaptic inhibition and γ-oscillations in a neuroligin-4 knockout mouse model of autism,” <i>Cell Reports</i>, vol. 13, no. 3. Cell Press, pp. 516–523, 2015.","mla":"Hammer, Matthieu, et al. “Perturbed Hippocampal Synaptic Inhibition and γ-Oscillations in a Neuroligin-4 Knockout Mouse Model of Autism.” <i>Cell Reports</i>, vol. 13, no. 3, Cell Press, 2015, pp. 516–23, doi:<a href=\"https://doi.org/10.1016/j.celrep.2015.09.011\">10.1016/j.celrep.2015.09.011</a>.","short":"M. Hammer, D. Krueger Burg, L. Tuffy, B. Cooper, H. Taschenberger, S. Goswami, H. Ehrenreich, P.M. Jonas, F. Varoqueaux, J. Rhee, N. Brose, Cell Reports 13 (2015) 516–523."},"department":[{"_id":"PeJo"}],"date_updated":"2021-01-12T06:52:01Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","ddc":["570"],"publication_status":"published","abstract":[{"text":"Loss-of-function mutations in the synaptic adhesion protein Neuroligin-4 are among the most common genetic abnormalities associated with autism spectrum disorders, but little is known about the function of Neuroligin-4 and the consequences of its loss. We assessed synaptic and network characteristics in Neuroligin-4 knockout mice, focusing on the hippocampus as a model brain region with a critical role in cognition and memory, and found that Neuroligin-4 deletion causes subtle defects of the protein composition and function of GABAergic synapses in the hippocampal CA3 region. Interestingly, these subtle synaptic changes are accompanied by pronounced perturbations of γ-oscillatory network activity, which has been implicated in cognitive function and is altered in multiple psychiatric and neurodevelopmental disorders. Our data provide important insights into the mechanisms by which Neuroligin-4-dependent GABAergic synapses may contribute to autism phenotypes and indicate new strategies for therapeutic approaches.","lang":"eng"}],"title":"Perturbed hippocampal synaptic inhibition and γ-oscillations in a neuroligin-4 knockout mouse model of autism","date_published":"2015-10-20T00:00:00Z","file_date_updated":"2020-07-14T12:45:07Z","publisher":"Cell Press","oa":1,"day":"20","year":"2015","doi":"10.1016/j.celrep.2015.09.011","page":"516 - 523","acknowledgement":"This work was supported by the Max Planck Society (N.B. and H.E.), the European Commission (EU-AIMS FP7-115300, N.B. and H.E.; Marie Curie IRG, D.K.-B.), the German Research Foundation (CNMPB, N.B., H.E., and F.V.), the Alexander von Humboldt-Foundation (D.K.-B.), and the Austrian Fond zur Förderung der Wissenschaftlichen Forschung (P 24909-B24, P.J.). M.H. was a student of the doctoral program Molecular Physiology of the Brain. Dr. J.-M. Fritschy generously provided the GABAARγ2 antibody. We thank F. Benseler, I. Thanhäuser, D. Schwerdtfeger, A. Ronnenberg, and D. Winkler for valuable advice and excellent technical support. We are grateful to the staff at the animal facility of the Max Planck Institute of Experimental Medicine for mouse husbandry.","scopus_import":1,"publication":"Cell Reports","publist_id":"5551","intvolume":"        13","oa_version":"Published Version","quality_controlled":"1","author":[{"full_name":"Hammer, Matthieu","first_name":"Matthieu","last_name":"Hammer"},{"full_name":"Krueger Burg, Dilja","last_name":"Krueger Burg","first_name":"Dilja"},{"last_name":"Tuffy","first_name":"Liam","full_name":"Tuffy, Liam"},{"first_name":"Benjamin","last_name":"Cooper","full_name":"Cooper, Benjamin"},{"last_name":"Taschenberger","first_name":"Holger","full_name":"Taschenberger, Holger"},{"first_name":"Sarit","last_name":"Goswami","full_name":"Goswami, Sarit","id":"3A578F32-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Hannelore","last_name":"Ehrenreich","full_name":"Ehrenreich, Hannelore"},{"id":"353C1B58-F248-11E8-B48F-1D18A9856A87","full_name":"Jonas, Peter M","last_name":"Jonas","first_name":"Peter M","orcid":"0000-0001-5001-4804"},{"full_name":"Varoqueaux, Frederique","first_name":"Frederique","last_name":"Varoqueaux"},{"full_name":"Rhee, Jeong","last_name":"Rhee","first_name":"Jeong"},{"first_name":"Nils","last_name":"Brose","full_name":"Brose, Nils"}],"file":[{"relation":"main_file","access_level":"open_access","file_size":2314406,"file_id":"5005","checksum":"44d30fbb543774b076b4938bd36af9d7","creator":"system","date_created":"2018-12-12T10:13:23Z","date_updated":"2020-07-14T12:45:07Z","content_type":"application/pdf","file_name":"IST-2016-470-v1+1_1-s2.0-S2211124715010220-main.pdf"}],"issue":"3","month":"10","has_accepted_license":"1","volume":13,"language":[{"iso":"eng"}],"type":"journal_article","_id":"1615","date_created":"2018-12-11T11:53:02Z","license":"https://creativecommons.org/licenses/by/4.0/","status":"public","pubrep_id":"470"},{"publication_status":"published","abstract":[{"text":"CCL19 and CCL21 are chemokines involved in the trafficking of immune cells, particularly within the lymphatic system, through activation of CCR7. Concurrent expression of PSGL-1 and CCR7 in naive T-cells enhances recruitment of these cells to secondary lymphoid organs by CCL19 and CCL21. Here the solution structure of CCL19 is reported. It contains a canonical chemokine domain. Chemical shift mapping shows the N-termini of PSGL-1 and CCR7 have overlapping binding sites for CCL19 and binding is competitive. Implications for the mechanism of PSGL-1's enhancement of resting T-cell recruitment are discussed.","lang":"eng"}],"title":"Solution structure of CCL19 and identification of overlapping CCR7 and PSGL-1 binding sites","pmid":1,"publisher":"American Chemical Society","date_published":"2015-06-26T00:00:00Z","citation":{"mla":"Veldkamp, Christopher, et al. “Solution Structure of CCL19 and Identification of Overlapping CCR7 and PSGL-1 Binding Sites.” <i>Biochemistry</i>, vol. 54, no. 27, American Chemical Society, 2015, pp. 4163–66, doi:<a href=\"https://doi.org/10.1021/acs.biochem.5b00560\">10.1021/acs.biochem.5b00560</a>.","short":"C. Veldkamp, E. Kiermaier, S. Gabel Eissens, M. Gillitzer, D. Lippner, F. Disilvio, C. Mueller, P. Wantuch, G. Chaffee, M. Famiglietti, D. Zgoba, A. Bailey, Y. Bah, S. Engebretson, D. Graupner, E. Lackner, V. Larosa, T. Medeiros, M. Olson, A. Phillips, H. Pyles, A. Richard, S. Schoeller, B. Touzeau, L. Williams, M.K. Sixt, F. Peterson, Biochemistry 54 (2015) 4163–4166.","ieee":"C. Veldkamp <i>et al.</i>, “Solution structure of CCL19 and identification of overlapping CCR7 and PSGL-1 binding sites,” <i>Biochemistry</i>, vol. 54, no. 27. American Chemical Society, pp. 4163–4166, 2015.","ista":"Veldkamp C, Kiermaier E, Gabel Eissens S, Gillitzer M, Lippner D, Disilvio F, Mueller C, Wantuch P, Chaffee G, Famiglietti M, Zgoba D, Bailey A, Bah Y, Engebretson S, Graupner D, Lackner E, Larosa V, Medeiros T, Olson M, Phillips A, Pyles H, Richard A, Schoeller S, Touzeau B, Williams L, Sixt MK, Peterson F. 2015. Solution structure of CCL19 and identification of overlapping CCR7 and PSGL-1 binding sites. Biochemistry. 54(27), 4163–4166.","ama":"Veldkamp C, Kiermaier E, Gabel Eissens S, et al. Solution structure of CCL19 and identification of overlapping CCR7 and PSGL-1 binding sites. <i>Biochemistry</i>. 2015;54(27):4163-4166. doi:<a href=\"https://doi.org/10.1021/acs.biochem.5b00560\">10.1021/acs.biochem.5b00560</a>","chicago":"Veldkamp, Christopher, Eva Kiermaier, Skylar Gabel Eissens, Miranda Gillitzer, David Lippner, Frank Disilvio, Casey Mueller, et al. “Solution Structure of CCL19 and Identification of Overlapping CCR7 and PSGL-1 Binding Sites.” <i>Biochemistry</i>. American Chemical Society, 2015. <a href=\"https://doi.org/10.1021/acs.biochem.5b00560\">https://doi.org/10.1021/acs.biochem.5b00560</a>.","apa":"Veldkamp, C., Kiermaier, E., Gabel Eissens, S., Gillitzer, M., Lippner, D., Disilvio, F., … Peterson, F. (2015). Solution structure of CCL19 and identification of overlapping CCR7 and PSGL-1 binding sites. <i>Biochemistry</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.biochem.5b00560\">https://doi.org/10.1021/acs.biochem.5b00560</a>"},"department":[{"_id":"MiSi"}],"date_updated":"2023-03-30T11:32:57Z","external_id":{"pmid":["26115234"]},"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","publication":"Biochemistry","publist_id":"5548","intvolume":"        54","oa":1,"year":"2015","page":"4163 - 4166","doi":"10.1021/acs.biochem.5b00560","day":"26","issue":"27","month":"06","volume":54,"article_processing_charge":"No","language":[{"iso":"eng"}],"oa_version":"Submitted Version","project":[{"_id":"25A603A2-B435-11E9-9278-68D0E5697425","grant_number":"281556","name":"Cytoskeletal force generation and force transduction of migrating leukocytes (EU)","call_identifier":"FP7"}],"quality_controlled":"1","author":[{"full_name":"Veldkamp, Christopher","first_name":"Christopher","last_name":"Veldkamp"},{"orcid":"0000-0001-6165-5738","last_name":"Kiermaier","first_name":"Eva","full_name":"Kiermaier, Eva","id":"3EB04B78-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Skylar","last_name":"Gabel Eissens","full_name":"Gabel Eissens, Skylar"},{"full_name":"Gillitzer, Miranda","first_name":"Miranda","last_name":"Gillitzer"},{"full_name":"Lippner, David","first_name":"David","last_name":"Lippner"},{"full_name":"Disilvio, Frank","first_name":"Frank","last_name":"Disilvio"},{"full_name":"Mueller, Casey","last_name":"Mueller","first_name":"Casey"},{"last_name":"Wantuch","first_name":"Paeton","full_name":"Wantuch, Paeton"},{"last_name":"Chaffee","first_name":"Gary","full_name":"Chaffee, Gary"},{"first_name":"Michael","last_name":"Famiglietti","full_name":"Famiglietti, Michael"},{"first_name":"Danielle","last_name":"Zgoba","full_name":"Zgoba, Danielle"},{"full_name":"Bailey, Asha","last_name":"Bailey","first_name":"Asha"},{"first_name":"Yaya","last_name":"Bah","full_name":"Bah, Yaya"},{"last_name":"Engebretson","first_name":"Samantha","full_name":"Engebretson, Samantha"},{"first_name":"David","last_name":"Graupner","full_name":"Graupner, David"},{"last_name":"Lackner","first_name":"Emily","full_name":"Lackner, Emily"},{"first_name":"Vincent","last_name":"Larosa","full_name":"Larosa, Vincent"},{"first_name":"Tysha","last_name":"Medeiros","full_name":"Medeiros, Tysha"},{"full_name":"Olson, Michael","last_name":"Olson","first_name":"Michael"},{"first_name":"Andrew","last_name":"Phillips","full_name":"Phillips, Andrew"},{"first_name":"Harley","last_name":"Pyles","full_name":"Pyles, Harley"},{"full_name":"Richard, Amanda","last_name":"Richard","first_name":"Amanda"},{"full_name":"Schoeller, Scott","last_name":"Schoeller","first_name":"Scott"},{"full_name":"Touzeau, Boris","last_name":"Touzeau","first_name":"Boris"},{"last_name":"Williams","first_name":"Larry","full_name":"Williams, Larry"},{"id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","full_name":"Sixt, Michael K","first_name":"Michael K","last_name":"Sixt","orcid":"0000-0002-6620-9179"},{"last_name":"Peterson","first_name":"Francis","full_name":"Peterson, Francis"}],"ec_funded":1,"type":"journal_article","_id":"1618","date_created":"2018-12-11T11:53:03Z","status":"public","main_file_link":[{"open_access":"1","url":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4809050/"}]}]
