@article{1033, abstract = {Systems of three interacting particles are notorious for their complex physical behaviour. A landmark theoretical result in few-body quantum physics is Efimov\'s prediction1,2 of a universal set of bound trimer states appearing for three identical bosons with a resonant two-body interaction. Counterintuitively, these states even exist in the absence of a corresponding two-body bound state. Since the formulation of Efimov\'s problem in the context of nuclear physics 35 years ago, it has attracted great interest in many areas of physics3-8. However, the observation of Efimov quantum states has remained an elusive goal3,5. Here we report the observation of an Efimov resonance in an ultracold gas of caesium atoms. The resonance occurs in the range of large negative two-body scattering lengths, arising from the coupling of three free atoms to an Efimov trimer. Experimentally, we observe its signature as a giant three-body recombination loss9,10 when the strength of the two-body interaction is varied. We also detect a minimum 9,11,12 in the recombination loss for positive scattering lengths, indicating destructive interference of decay pathways. Our results confirm central theoretical predictions of Efimov physics and represent a starting point with which to explore the universal properties of resonantly interacting few-body systems7. While Feshbach resonances13,14 have provided the key to control quantum-mechanical interactions on the two-body level, Efimov resonances connect ultracold matter15 to the world of few-body quantum phenomena.}, author = {Kraemer, Tobias and Mark, Michael and Waldburger, Philipp and Danzl, Johann G and Chin, Cheng and Engeser, Bastian and Lange, Adam and Pilch, Karl and Jaakkola, Antti and Nägerl, Hanns and Grimm, Rudolf}, journal = {Nature}, number = {7082}, pages = {315 -- 318}, publisher = {Nature Publishing Group}, title = {{Evidence for Efimov quantum states in an ultracold gas of caesium atoms}}, doi = {10.1038/nature04626}, volume = {440}, year = {2006}, } @inproceedings{1034, abstract = {Three interacting particles form a system which is well known for its complex physical behavior. A landmark theoretical result in few-body quantum physics is Efimov\'s prediction of a universal set of weakly bound trimer states appearing for three identical bosons with a resonant two-body interaction [1, 2]. Surprisingly, these states even exist in the absence of a corresponding two-body bound state and their precise nature is largely independent of the particular type of the two-body interaction potential. Efimov\'s scenario has attracted great interest in many areas of physics; an experimental test however has not been achieved. We report the observation of an Efimov resonance in an ultracold thermal gas of cesium atoms [3]. The resonance occurs in the range of large negative two-body scattering lengths and arises from the coupling of three free atoms to an Efimov trimer. We observe its signature as a giant three-body recombination loss when the strength of the two-body interaction is varied near a Feshbach resonance. This resonance develops into a continuum resonance at non-zero collision energies, and we observe a shift of the resonance position as a function of temperature. We also report on a minimum in the recombination loss for positive scattering lengths, indicating destructive interference of decay pathways. Our results confirm central theoretical predictions of Efimov physics and represent a starting point from which to explore the universal properties of resonantly interacting few-body systems.}, author = {Nägerl, Hanns and Kraemer, Tobias and Mark, Michael and Waldburger, Philipp and Danzl, Johann G and Engeser, Bastian and Lange, Adam and Pilch, Karl and Jaakkola, Antti and Chin, Cheng and Grimm, Rudolf}, pages = {269 -- 277}, publisher = {AIP}, title = {{Experimental evidence for Efimov quantum states}}, doi = {10.1063/1.2400657}, volume = {869}, year = {2006}, } @article{9505, abstract = {Cytosine methylation, a common form of DNA modification that antagonizes transcription, is found at transposons and repeats in vertebrates, plants and fungi. Here we have mapped DNA methylation in the entire Arabidopsis thaliana genome at high resolution. DNA methylation covers transposons and is present within a large fraction of A. thaliana genes. Methylation within genes is conspicuously biased away from gene ends, suggesting a dependence on RNA polymerase transit. Genic methylation is strongly influenced by transcription: moderately transcribed genes are most likely to be methylated, whereas genes at either extreme are least likely. In turn, transcription is influenced by methylation: short methylated genes are poorly expressed, and loss of methylation in the body of a gene leads to enhanced transcription. Our results indicate that genic transcription and DNA methylation are closely interwoven processes.}, author = {Zilberman, Daniel and Gehring, Mary and Tran, Robert K. and Ballinger, Tracy and Henikoff, Steven}, issn = {1546-1718}, journal = {Nature Genetics}, number = {1}, pages = {61--69}, publisher = {Nature Publishing Group}, title = {{Genome-wide analysis of Arabidopsis thaliana DNA methylation uncovers an interdependence between methylation and transcription}}, doi = {10.1038/ng1929}, volume = {39}, year = {2006}, } @article{11117, abstract = {Over the last years it has become evident that the nuclear envelope (NE) is more than a passive membrane barrier that separates the nucleus from the cytoplasm. The NE not only controls the trafficking of macromolecules between the nucleoplasm and the cytosol, but also provides anchoring sites for chromosomes and cytoskeleton to the nuclear periphery. Targeting of chromatin to the NE might actually be part of gene expression regulation in eukaryotes. Mutations in certain NE proteins are associated with a diversity of human diseases, including muscular dystrophy, neuropathy, lipodistrophy, torsion dystonia and the premature aging condition progeria. Despite the importance of the NE for cell division and differentiation, relatively little is known about its biogenesis and its role in human diseases. It is our goal to provide a comprehensive view of the NE and to discuss possible implications of NE-associated changes for gene expression, chromatin organization and signal transduction.}, author = {D’Angelo, M. A. and HETZER, Martin W}, issn = {1420-9071}, journal = {Cellular and Molecular Life Sciences}, keywords = {Cell Biology, Cellular and Molecular Neuroscience, Pharmacology, Molecular Biology, Molecular Medicine}, number = {3}, pages = {316--332}, publisher = {Springer Nature}, title = {{The role of the nuclear envelope in cellular organization}}, doi = {10.1007/s00018-005-5361-3}, volume = {63}, year = {2006}, } @article{11118, abstract = {Nuclear pore complexes are multiprotein channels that span the double lipid bilayer of the nuclear envelope. How new pores are inserted into the intact nuclear envelope of proliferating and differentiating eukaryotic cells is unknown. We found that the Nup107-160 complex was incorporated into assembly sites in the nuclear envelope from both the nucleoplasmic and the cytoplasmic sides. Nuclear pore insertion required the generation of Ran guanosine triphosphate in the nuclear and cytoplasmic compartments. Newly formed nuclear pore complexes did not contain structural components of preexisting pores, suggesting that they can form de novo.}, author = {D'Angelo, Maximiliano A. and Anderson, Daniel J. and Richard, Erin and HETZER, Martin W}, issn = {0036-8075}, journal = {Science}, keywords = {Multidisciplinary}, number = {5772}, pages = {440--443}, publisher = {American Association for the Advancement of Science}, title = {{Nuclear pores form de novo from both sides of the nuclear envelope}}, doi = {10.1126/science.1124196}, volume = {312}, year = {2006}, } @inbook{11119, author = {Harris, J. Robin and Almouzni, Geneviève and Kirschner, Doris and Dimitrova, Daniela and Nickerson, Jeffrey A. and Underwood, Jean and Wagner, Stefan and Korbei, Barbara and Foisner, Roland and Walther, Tobias C. and HETZER, Martin W and Peters, Reiner and Walev, Ivan and de Kroon, Anton I. P. M. and Staffhorst, Rutger W. H. M. and de Kruijff, Ben and Burger, Koert N. J. and Netto, Luis Eduardo Soares and Bertrand, Eric and Alimonti, Judie B. and Greenberg, Arnold H. and Xiao, Jinnan and Pradhan, Anuradha and Liu, Yuechueng and Paiement, Jacques and Young, Robin and Goñi, Félix M. and Villar, Ana-Victoria and Contreras, F.-Xabier and Alonso, Alicia and Peter, Brian J. and Mills, Ian G. and Higgins, Matthew K. and Brown, William J. and Chambers, K. and Doody, A. and Cheng, C. Yan and Mruk, Dolores D. and Yang, Chunhong and Kirchhoff, Helmut and Haase, Winfried and Boggasch, Stephanie and Paulsen, Harald and Benesova, Julie and Liffers, Sven-T. and Rögner, Matthias and Gao, Ya-sheng and Sztul, Elizabeth and Thiemann, Meinolf and Fahimi, H. Dariush and Gniadecki, Robert and Gajkowska, Barbara and Bane, Susan L. and Hess, John F. and Voss, John C. and Fitzgerald, Paul G. and Hisanaga, Shin-ichi and Sasaki, Takahiro and Uéda, Kenji and Town, Terrence and Tan, Jun and Milton, Nathaniel G. N. and Chi, Richard and Keller, Thomas C. S. and Kriajevska, Marina and Bronstein, Igor and Lukanidin, Eugene and Holmes, David F. and Kadler, Karl E.}, booktitle = {Cell Biology Protocols}, editor = {Harris, Robin and Graham, John and Rickwood, David}, isbn = {9780470847589 }, pages = {201--378}, publisher = {Wiley}, title = {{In Vitro Techniques}}, doi = {10.1002/0470033487.ch6}, year = {2006}, } @inproceedings{11929, abstract = {Broder et al.'s [3] shingling algorithm and Charikar's [4] random projection based approach are considered "state-of-the-art" algorithms for finding near-duplicate web pages. Both algorithms were either developed at or used by popular web search engines. We compare the two algorithms on a very large scale, namely on a set of 1.6B distinct web pages. The results show that neither of the algorithms works well for finding near-duplicate pairs on the same site, while both achieve high precision for near-duplicate pairs on different sites. Since Charikar's algorithm finds more near-duplicate pairs on different sites, it achieves a better precision overall, namely 0.50 versus 0.38 for Broder et al.'s algorithm. We present a combined algorithm which achieves precision 0.79 with 79% of the recall of the other algorithms.}, author = {Henzinger, Monika H}, booktitle = {29th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval}, location = {Seattle, WA, United States}, pages = {284--291}, publisher = {Association for Computing Machinery}, title = {{Finding near-duplicate web pages: A large-scale evaluation of algorithms}}, doi = {10.1145/1148170.1148222}, year = {2006}, } @inproceedings{2077, abstract = {We present an adaptive animation method for electrical discharges. Electrical discharges can be simulated using the dielectric breakdown model. Regular discretization of the governing Laplace equation leads to huge equation systems, and the computational cost of solving the equations quickly becomes prohibitive at high resolutions, especially for simulations in 3D. In contrast, our method discretizes the Laplace equation on an adaptive octree, reducing the size of the problem significantly, and making simulations of high resolution 3D datasets and even 3D animations feasible. In order to enhance realism for lightning animations, we propose a particle simulation that animates the residual positive charge. Thus, interaction of electrical discharges with their surroundings can be simulated.}, author = {Bernd Bickel and Wicke, Martin and Gross, Markus}, publisher = {IOS Press}, title = {{Adaptive simulation of electrical discharges}}, year = {2006}, } @inproceedings{2088, abstract = {We have measured 3D face geometry, skin reflectance, and subsurface scattering using custom-built devices for 149 subjects of varying age, gender, and race. We developed a novel skin reflectance model whose parameters can be estimated from measurements. The model decomposes the large amount of measured skin data into a spatially-varying analytic BRDF, a diffuse albedo map, and diffuse subsurface scattering. Our model is intuitive, physically plausible, and - since we do not use the original measured data - easy to edit as well. High-quality renderings come close to reproducing real photographs. The analysis of the model parameters for our sample population reveals variations according to subject age, gender, skin type, and external factors (e.g., sweat, cold, or makeup). Using our statistics, a user can edit the overall appearance of a face (e.g., changing skin type and age) or change small-scale features using texture synthesis (e.g., adding moles and freckles). We are making the collected statistics publicly available to the research community for applications in face synthesis and analysis. }, author = {Weyrich, Tim and Matusik, Wojciech and Pfister, Hanspeter and Bernd Bickel and Donner, Craig and Tu, Chien and McAndless, Janet M and Lee, Jinho and Ngan, Addy and Jensen, Henrik W and Groß, Markus S}, pages = {1013 -- 1024}, publisher = {ACM}, title = {{Analysis of human faces using a measurement-based skin reflectance model}}, doi = {10.1145/1179352.1141987}, year = {2006}, } @article{2089, abstract = {We have measured 3D face geometry, skin reflectance, and subsurface scattering using custom-built devices for 149 subjects of varying age, gender, and race. We developed a novel skin reflectance model whose parameters can be estimated from measurements. The model decomposes the large amount of measured skin data into a spatially-varying analytic BRDF, a diffuse albedo map, and diffuse subsurface scattering. Our model is intuitive, physically plausible, and - since we do not use the original measured data - easy to edit as well. High-quality renderings come close to reproducing real photographs. The analysis of the model parameters for our sample population reveals variations according to subject age, gender, skin type, and external factors (e.g., sweat, cold, or makeup). Using our statistics, a user can edit the overall appearance of a face (e.g., changing skin type and age) or change small-scale features using texture synthesis (e.g., adding moles and freckles). We are making the collected statistics publicly available to the research community for applications in face synthesis and analysis.}, author = {Weyrich, Tim and Matusik, Wojciech and Pfister, Hanspeter and Bernd Bickel and Donner, Craig and Tu, Chien and McAndless, Janet M and Lee, Jinho and Ngan, Addy and Jensen, Henrik W and Groß, Markus S}, journal = {ACM Transactions on Graphics}, number = {3}, pages = {1013 -- 1024}, publisher = {ACM}, title = {{Analysis of human faces using a measurement-based skin reflectance model}}, doi = {10.1145/1141911.1141987}, volume = {25}, year = {2006}, } @inproceedings{2090, author = {Bernd Bickel and Weyrich, Tim and Matusik, Wojciech and Pfister, Hanspeter and Donner, Craig and Tu, Chien and McAndless, Janet M and Lee, Jinho and Ngan, Addy and Jensen, Henrik W and Groß, Markus S}, publisher = {ACM}, title = {{Processing and editing of faces using a measurement-based skin reflectance model}}, doi = {10.1145/1179849.1180059}, year = {2006}, } @article{213, abstract = {For any integers d,n ≥2, let X ⊂ Pn be a non‐singular hypersurface of degree d that is defined over the rational numbers. The main result in this paper is a proof that the number of rational points on X which have height at most B is O(Bn − 1 + ɛ), for any ɛ > 0. The implied constant in this estimate depends at most upon d, ɛ and n. 2000 Mathematics Subject Classification 11D45 (primary), 11G35, 14G05 (secondary).}, author = {Timothy Browning and Heath-Brown, Roger and Starr, Jason M}, journal = {Proceedings of the London Mathematical Society}, number = {2}, pages = {273 -- 303}, publisher = {John Wiley and Sons Ltd}, title = {{The density of rational points on non-singular hypersurfaces, II}}, doi = {https://doi.org/10.1112/S0024611506015784}, volume = {93}, year = {2006}, } @article{2134, abstract = {Predissociation of the N+2 C 2Σ+u(v') vibrational levels with v' ≥ 3 was observed via dispersed C 2Σ+u → X 2Σ+g fluorescence in the spectral range of 165–208 nm after resonant 1s−1π*(vr) excitation of N2 and its subsequent autoionization into the N+2 C state. This range is dominated by lines in atomic nitrogen, by overlapped C 2Σ+u(v') → X 2Σ+g(v'') vibrational band sequences with Δv = const and broad unresolved band systems (D, (2))2Πg(v') → A2Πu(v'') in the N+2 molecular ion. With very high fluorescence resolution of about 0.1 nm FWHM individual C 2Σ+u(v') → X 2Σ+g(v'') vibrational bands have been resolved. Calculation of the observed fluorescence spectra by taking into account predissociation and molecular rotation describes well the shape of both individual vibrational bands C 2Σ+u(v') → X 2Σ+g(v'') and the whole band system.}, author = {Ehresmann, Arno and Werner, Lutz and Klumpp, Stefan and Demekhin, Ph V and Mikhail Lemeshko and Sukhorukov, V. L and Schartner, Karl H and Schmoranzer, Hans P}, journal = {Journal of Physics B: Atomic, Molecular and Optical Physics}, number = {6}, pages = {L119 -- L126}, publisher = {IOP Publishing Ltd.}, title = {{Predissociation of the N+2(C 2Σ+u) state observed via C 2Σ+u → X 2Σ+g fluorescence after resonant 1s−1π* excitation of N2 molecule}}, doi = {10.1088/0953-4075/39/6/L03}, volume = {39}, year = {2006}, } @article{2142, abstract = {Fluorescence from fragments formed after the de-excitation of the N*2(1s−1π*) resonance has been measured in the spectral range of 135–190 nm. This range is dominated by lines in atomic nitrogen and lines formed by overlapping C2Σ+u(v') → X2Σ+g(v'') bands with Δv = const in the N+2 molecular ion which result from the spectator Auger decays of the N*2(1s−1π*(vr)) resonances. Ab initio calculations of the corresponding potential curves and transition probabilities showed that the observed irregular intensity dependence of the C2Σ+u(v') → X2Σ+g(v'')(Δv = const) fluorescence lines on the vibrational quantum number vr is due to transitions between vibrational levels during the reaction N2(v0 = 0)→ N*2(1s−1π*(vr)) Longrightarrow C2Σ+u(v') → X2Σ+g(v'').}, author = {Ehresmann, Arno and Werner, Lutz and Klumpp, Stefan and Lucht, S and Schmoranzer, Hans P and Mickat, Sascha and Schill, Rüdiger H and Schartner, Karl H and Demekhin, Philipp and Mikhail Lemeshko and Sukhorukov, Victor L}, journal = {Journal of Physics B: Atomic, Molecular and Optical Physics}, number = {2}, pages = {283 -- 304}, publisher = {IOP Publishing Ltd.}, title = {{Studying the N+2(C2Σ+u → X2Σ+g) fluorescence excited via the 1s−1π* resonance}}, doi = {10.1088/0953-4075/39/2/006}, volume = {39}, year = {2006}, } @article{2144, abstract = {Temperature dependent preedge and extended x-ray absorption fine structure measurements at the Zr K edge for the perovskite-type zirconates Pb Zr0.515 Ti0.485 O3 (PZT), PbZr O3 (PZ), and BaZr O3 are performed. To carry out a more accurate study of the weak reconstruction of the local atomic structure we employed a combination of two techniques: (i) analysis of the preedge fine structure, and (ii) analysis of the Fourier transform of the difference between χ (k) functions obtained at different temperatures. A detailed investigation of local atomic structure in the cubic phase for all the crystals is also performed. It is shown that neither the displacive nor the order-disorder model can describe correctly the changes of local atomic structure during phase transitions in PZ and PZT. A spherical model describing the local atomic structure of perovskite-type crystals suffering structural phase transitions is proposed.}, author = {Vedrinskiǐ, Rostislav V and Nazarenko, Elena S and Mikhail Lemeshko and Nassif, Vivian M and Proux, Olivier and Novakovich, Alexander A and Joly, Yves}, journal = {Physical Review B - Condensed Matter and Materials Physics}, number = {13}, publisher = {American Physical Society}, title = {{Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates}}, doi = {10.1103/PhysRevB.73.134109}, volume = {73}, year = {2006}, } @article{215, abstract = {For any n≥3, let F ∈ Z[X0,...,Xn ] be a form of degree d *≥5 that defines a non-singular hypersurface X ⊂ Pn . The main result in this paper is a proof of the fact that the number N (F ; B) of Q-rational points on X which have height at most B satisfiesN (F ; B) = Od,ε,n (Bn −1+ε ), for any ε > 0. The implied constant in this estimate depends at most upon d, ε and n. New estimates are also obtained for the number of representations of a positive integer as the sum of three dth powers, and for the paucity of integer solutions to equal sums of like polynomials.*}, author = {Timothy Browning and Heath-Brown, Roger}, journal = {Bulletin of the London Mathematical Society}, number = {3}, pages = {401 -- 410}, publisher = {Wiley-Blackwell}, title = {{The density of rational points on non-singular hypersurfaces, I}}, doi = {10.1112/S0024609305018412}, volume = {38}, year = {2006}, } @article{216, abstract = {For any N ≥ 2, let Z ⊂ ℙN be a geometrically integral algebraic variety of degree d. This article is concerned with the number Nz(B) of ℚ-rational points on Z which have height at most B. For any ε > 0, we establish the estimate NZ(B) = O d,ε,N(Bdim Z+ε), provided that d ≥ 6. As indicated, the implied constant depends at most on d, ε, and N.}, author = {Timothy Browning and Heath-Brown, Roger and Salberger, Per}, journal = {Duke Mathematical Journal}, number = {3}, pages = {545 -- 578}, publisher = {Unknown}, title = {{Counting rational points on algebraic varieties}}, doi = {10.1215/S0012-7094-06-13236-2}, volume = {132}, year = {2006}, } @article{218, abstract = {This paper is concerned with the average order of certain arithmetic functions, as they range over the values taken by binary forms.}, author = {de la Bretèche, Régis and Timothy Browning}, journal = {Acta Arithmetica}, number = {3}, pages = {291 -- 304}, publisher = {Instytut Matematyczny}, title = {{Sums of arithmetic functions over values of binary forms}}, doi = {10.4064/aa125-3-6}, volume = {125}, year = {2006}, } @inproceedings{2333, author = {Lieb, Élliott H and Robert Seiringer and Solovej, Jan P}, pages = {239 -- 248}, publisher = {American Mathematical Society}, title = {{Ground-state energy of a dilute Fermi gas}}, doi = {10.1090/conm/412}, volume = {412}, year = {2006}, } @inproceedings{2334, author = {Robert Seiringer and Lieb, Élliott H and Yngvason, Jakob}, editor = {Zambrini, Jean-Claude}, publisher = {World Scientific Publishing}, title = {{One-dimensional behavior of dilute, trapped Bose gases in traps}}, doi = {10.1007/s00220-003-0993-3}, year = {2006}, }