---
_id: '2864'
abstract:
- lang: eng
  text: Using an electrospray tandem mass spectrometer as a concentration-sensitive
    detector, a method has been developed to quantify femtomole amounts of plant growth
    regulators (i.e. isoprenoid type cytokinins, zeatin, dihydrozeatin, isopentenyladenine
    and their respective riboside and glucoside analogues) and the second messenger
    adenosine 3':5'-cyclic monophosphate (3':5'-cAMP). Miniaturisation of the chromatographic
    setup using capillary high performance liquid chromatographic (HPLC) ion spray
    mass spectrometry increased the sensitivity to the low femtomole region. Application
    of automated capillary column switching allowed the introduction of large injection
    volumes into the HPLC system. Aliquots (25 μL) were injected into one dimension
    of the HPLC set-up and stacked onto a micro pre-column. By means of mobile phase
    switching the pre-column was back-flushed to introduce the analytes onto the analytical
    column. For cytokinin analysis positive electrospray ionisation was used and resulted
    in 2.5-25 fmol detection limits. Cyclic nucleotides were separated under ion-pair
    conditions using tetrabutyl ammonium bromide as ion-pair reagent and were detected
    under negative electrospray ionisation conditions. Here a 25 fmol detection limit
    was determined. Following this approach, cytokinins and 3':5'-cAMP extracted from
    only mg amounts of apical shoot meristem and chloroplasts obtained from Nicotiana
    tabacum cv. Petit Havana SR1 were identified and quantified.
acknowledgement: The  authors  wish  to  thank  J.  Dupon  for  technical  and  logisticalassistance.
  The authors also wish to thank the FWO-Vlaanderen/lotto (grant  32013394),  the  Flemish  government  (GOA-action)  and  the
  Grant Agency of the Czech Republic (grant 206/96/K188) for financial support.
article_processing_charge: No
article_type: original
author:
- first_name: Erwin
  full_name: Witters, Erwin
  last_name: Witters
- first_name: Koen
  full_name: Vanhoutte, Koen
  last_name: Vanhoutte
- first_name: Walter
  full_name: Dewitte, Walter
  last_name: Dewitte
- first_name: Ivana
  full_name: Macháčková, Ivana
  last_name: Macháčková
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: Walter
  full_name: Van Dongen, Walter
  last_name: Van Dongen
- first_name: Eddy
  full_name: Esmans, Eddy
  last_name: Esmans
- first_name: Henri
  full_name: Van Onckelen, Henri
  last_name: Van Onckelen
citation:
  ama: Witters E, Vanhoutte K, Dewitte W, et al. Analysis of cyclic nucleotides and
    cytokinins in minute plant samples using phase system switching capillary electrospray
    liquid chromatography tandem mass spectrometry. <i>Phytochemical Analysis</i>.
    1999;10(3):143-151. doi:<a href="https://doi.org/10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G">10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G</a>
  apa: Witters, E., Vanhoutte, K., Dewitte, W., Macháčková, I., Benková, E., Van Dongen,
    W., … Van Onckelen, H. (1999). Analysis of cyclic nucleotides and cytokinins in
    minute plant samples using phase system switching capillary electrospray liquid
    chromatography tandem mass spectrometry. <i>Phytochemical Analysis</i>. Wiley-Blackwell.
    <a href="https://doi.org/10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G">https://doi.org/10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G</a>
  chicago: Witters, Erwin, Koen Vanhoutte, Walter Dewitte, Ivana Macháčková, Eva Benková,
    Walter Van Dongen, Eddy Esmans, and Henri Van Onckelen. “Analysis of Cyclic Nucleotides
    and Cytokinins in Minute Plant Samples Using Phase System Switching Capillary
    Electrospray Liquid Chromatography Tandem Mass Spectrometry.” <i>Phytochemical
    Analysis</i>. Wiley-Blackwell, 1999. <a href="https://doi.org/10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G">https://doi.org/10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G</a>.
  ieee: E. Witters <i>et al.</i>, “Analysis of cyclic nucleotides and cytokinins in
    minute plant samples using phase system switching capillary electrospray liquid
    chromatography tandem mass spectrometry,” <i>Phytochemical Analysis</i>, vol.
    10, no. 3. Wiley-Blackwell, pp. 143–151, 1999.
  ista: Witters E, Vanhoutte K, Dewitte W, Macháčková I, Benková E, Van Dongen W,
    Esmans E, Van Onckelen H. 1999. Analysis of cyclic nucleotides and cytokinins
    in minute plant samples using phase system switching capillary electrospray liquid
    chromatography tandem mass spectrometry. Phytochemical Analysis. 10(3), 143–151.
  mla: Witters, Erwin, et al. “Analysis of Cyclic Nucleotides and Cytokinins in Minute
    Plant Samples Using Phase System Switching Capillary Electrospray Liquid Chromatography
    Tandem Mass Spectrometry.” <i>Phytochemical Analysis</i>, vol. 10, no. 3, Wiley-Blackwell,
    1999, pp. 143–51, doi:<a href="https://doi.org/10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G">10.1002/(SICI)1099-1565(199905/06)10:3&#38;lt;143::AID-PCA441&#38;gt;3.0.CO;2-G</a>.
  short: E. Witters, K. Vanhoutte, W. Dewitte, I. Macháčková, E. Benková, W. Van Dongen,
    E. Esmans, H. Van Onckelen, Phytochemical Analysis 10 (1999) 143–151.
date_created: 2018-12-11T12:00:00Z
date_published: 1999-05-01T00:00:00Z
date_updated: 2022-09-09T09:09:22Z
day: '01'
doi: 10.1002/(SICI)1099-1565(199905/06)10:3&lt;143::AID-PCA441&gt;3.0.CO;2-G
extern: '1'
intvolume: '        10'
issue: '3'
language:
- iso: eng
month: '05'
oa_version: None
page: 143 - 151
publication: Phytochemical Analysis
publication_identifier:
  issn:
  - 0958-0344
publication_status: published
publisher: Wiley-Blackwell
publist_id: '3925'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Analysis of cyclic nucleotides and cytokinins in minute plant samples using
  phase system switching capillary electrospray liquid chromatography tandem mass
  spectrometry
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 10
year: '1999'
...
---
_id: '2865'
abstract:
- lang: eng
  text: 'Although cytokinins (CKs) affect a number of processes connected with chloroplasts,
    it has never been rigorously proven that chloroplasts contain CKs. We isolated
    intact chloroplasts from tobacco (Nicotiana tabacum L. cv SR1) and wheat (Triticum
    aestivum L. cv Ritmo) leaves and determined their CKs by liquid chromatography/tandem
    mass spectroscopy. Chloroplasts from both species contained a whole spectrum of
    CKs, including free bases (zeatin and isopentenyladenine), ribosides (zeatin riboside,
    and isopentenyladenosine), ribotides (isopentenyladenosine-5′-monophosphate, zeatin
    riboside-5′-monophosphate, and dihydrozeatin riboside-5′-monophosphate), and N-glucosides
    (zeatin-N 9-glucoside, dihydrozeatin-N 9-glucoside, zeatin-N 7-glucoside, and
    isopentenyladenine-N-glucosides). In chloroplasts there was a moderately higher
    relative amount of bases, ribosides, and ribotides than in leaves, and a significantly
    increased level ofN 9-glucosides of zeatin and dihydrozeatin. Tobacco and wheat
    chloroplasts were prepared from leaves at the end of either a dark or light period.
    After a dark period, chloroplasts accumulated more CKs than after a light period.
    The differences were moderate for free bases and ribosides, but highly significant
    for glucosides. Tobacco chloroplasts from dark-treated leaves contained zeatin
    riboside-O-glucoside and dihydrozeatin riboside-O-glucoside, as well as a relatively
    high CK oxidase activity. These data show that chloroplasts contain a whole spectrum
    of CKs and the enzymatic activity necessary for their metabolism. '
acknowledgement: The authors thank Prof. Dennis Baker (Wye College, London) and Dr.
  Laura Zonia (Institute of Experimental Botany, Prague) for language correction of
  the manuscript and Prof. Miroslav Kamínek (Institute of Experimental Botany, Prague)
  for critical reading of the manuscript.
article_processing_charge: No
article_type: original
author:
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: Erwin
  full_name: Witters, Erwin
  last_name: Witters
- first_name: Walter
  full_name: Van Dongen, Walter
  last_name: Van Dongen
- first_name: Jan
  full_name: Kolář, Jan
  last_name: Kolář
- first_name: Václav
  full_name: Motyka, Václav
  last_name: Motyka
- first_name: Břetislav
  full_name: Brzobohatý, Břetislav
  last_name: Brzobohatý
- first_name: Henri
  full_name: Van Onckelen, Henri
  last_name: Van Onckelen
- first_name: Ivana
  full_name: Macháčková, Ivana
  last_name: Macháčková
citation:
  ama: Benková E, Witters E, Van Dongen W, et al. Cytokinins in tobacco and wheat
    chloroplasts. Occurrence and changes due to light/dark treatment. <i>Plant Physiology</i>.
    1999;121(1):245-251. doi:<a href="https://doi.org/10.1104/pp.121.1.245">10.1104/pp.121.1.245</a>
  apa: Benková, E., Witters, E., Van Dongen, W., Kolář, J., Motyka, V., Brzobohatý,
    B., … Macháčková, I. (1999). Cytokinins in tobacco and wheat chloroplasts. Occurrence
    and changes due to light/dark treatment. <i>Plant Physiology</i>. American Society
    of Plant Biologists. <a href="https://doi.org/10.1104/pp.121.1.245">https://doi.org/10.1104/pp.121.1.245</a>
  chicago: Benková, Eva, Erwin Witters, Walter Van Dongen, Jan Kolář, Václav Motyka,
    Břetislav Brzobohatý, Henri Van Onckelen, and Ivana Macháčková. “Cytokinins in
    Tobacco and Wheat Chloroplasts. Occurrence and Changes Due to Light/Dark Treatment.”
    <i>Plant Physiology</i>. American Society of Plant Biologists, 1999. <a href="https://doi.org/10.1104/pp.121.1.245">https://doi.org/10.1104/pp.121.1.245</a>.
  ieee: E. Benková <i>et al.</i>, “Cytokinins in tobacco and wheat chloroplasts. Occurrence
    and changes due to light/dark treatment,” <i>Plant Physiology</i>, vol. 121, no.
    1. American Society of Plant Biologists, pp. 245–251, 1999.
  ista: Benková E, Witters E, Van Dongen W, Kolář J, Motyka V, Brzobohatý B, Van Onckelen
    H, Macháčková I. 1999. Cytokinins in tobacco and wheat chloroplasts. Occurrence
    and changes due to light/dark treatment. Plant Physiology. 121(1), 245–251.
  mla: Benková, Eva, et al. “Cytokinins in Tobacco and Wheat Chloroplasts. Occurrence
    and Changes Due to Light/Dark Treatment.” <i>Plant Physiology</i>, vol. 121, no.
    1, American Society of Plant Biologists, 1999, pp. 245–51, doi:<a href="https://doi.org/10.1104/pp.121.1.245">10.1104/pp.121.1.245</a>.
  short: E. Benková, E. Witters, W. Van Dongen, J. Kolář, V. Motyka, B. Brzobohatý,
    H. Van Onckelen, I. Macháčková, Plant Physiology 121 (1999) 245–251.
date_created: 2018-12-11T12:00:00Z
date_published: 1999-09-01T00:00:00Z
date_updated: 2022-09-07T13:56:12Z
day: '01'
doi: 10.1104/pp.121.1.245
extern: '1'
external_id:
  pmid:
  - '10482680'
intvolume: '       121'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC59373/
month: '09'
oa: 1
oa_version: Published Version
page: 245 - 251
pmid: 1
publication: Plant Physiology
publication_identifier:
  issn:
  - 0032-0889
publication_status: published
publisher: American Society of Plant Biologists
publist_id: '3924'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cytokinins in tobacco and wheat chloroplasts. Occurrence and changes due to
  light/dark treatment
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 121
year: '1999'
...
---
_id: '3137'
abstract:
- lang: eng
  text: This volume provides an overview of glutamate receptors and their role in
    excitatory neurotransmission. It focusses on three aspects. First, it describes
    the functional, molecular, and pharmacological properties of glutamate receptors
    (AMPA, NMDA, and kainate receptors). Second, it gives a survey how these receptors
    are involved in synaptic transmission at different glutamatergic synapses in the
    mammalian CNS. Finally, it adresses how overactivation of glutamate receptors
    can lead to excitotoxic cell death, and emphasizes the importance of glutamate
    receptors as potential therapeutical targets. The chapters, written by leading
    scientists, give accurate summaries of facets that have emerged recently in this
    field. The book demonstrates the strength of a multidisciplinary approach involving
    physiology, pharmacology, and molecular biology. It will be useful for other scientists
    in and outside the field, lecturers and students at different educational levels.
alternative_title:
- Handbook of Experimental Pharmacology
article_processing_charge: No
citation:
  ama: 'Jonas PM, Monyer H, eds. <i>Ionotropic Glutamate Receptors in the CNS</i>.
    Vol 141. 1st ed. Berlin ; Heidelberg: Springer; 1999. doi:<a href="https://doi.org/10.1007/978-3-662-08022-1">10.1007/978-3-662-08022-1</a>'
  apa: 'Jonas, P. M., &#38; Monyer, H. (Eds.). (1999). <i>Ionotropic Glutamate Receptors
    in the CNS</i> (1st ed., Vol. 141). Berlin ; Heidelberg: Springer. <a href="https://doi.org/10.1007/978-3-662-08022-1">https://doi.org/10.1007/978-3-662-08022-1</a>'
  chicago: 'Jonas, Peter M, and Hannah Monyer, eds. <i>Ionotropic Glutamate Receptors
    in the CNS</i>. 1st ed. Vol. 141. Berlin ; Heidelberg: Springer, 1999. <a href="https://doi.org/10.1007/978-3-662-08022-1">https://doi.org/10.1007/978-3-662-08022-1</a>.'
  ieee: 'P. M. Jonas and H. Monyer, Eds., <i>Ionotropic Glutamate Receptors in the
    CNS</i>, 1st ed., vol. 141. Berlin ; Heidelberg: Springer, 1999.'
  ista: 'Jonas PM, Monyer H eds. 1999. Ionotropic Glutamate Receptors in the CNS 1st
    ed., Berlin ; Heidelberg: Springer, XXII, 535p.'
  mla: Jonas, Peter M., and Hannah Monyer, editors. <i>Ionotropic Glutamate Receptors
    in the CNS</i>. 1st ed., vol. 141, Springer, 1999, doi:<a href="https://doi.org/10.1007/978-3-662-08022-1">10.1007/978-3-662-08022-1</a>.
  short: P.M. Jonas, H. Monyer, eds., Ionotropic Glutamate Receptors in the CNS, 1st
    ed., Springer, Berlin ; Heidelberg, 1999.
date_created: 2018-12-11T12:01:36Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2021-12-22T11:13:43Z
day: '01'
doi: 10.1007/978-3-662-08022-1
edition: '1'
editor:
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Hannah
  full_name: Monyer, Hannah
  last_name: Monyer
extern: '1'
intvolume: '       141'
language:
- iso: eng
main_file_link:
- url: http://www.springer.com/biomed/pharmaceutical+science/book/978-3-540-66120-7
month: '01'
oa_version: None
page: XXII, 535
place: Berlin ; Heidelberg
publication_identifier:
  eisbn:
  - 978-3-662-08022-1
  eissn:
  - 1865-0325
  isbn:
  - 978-3-642-08539-0
  issn:
  - 0171-2004
publication_status: published
publisher: Springer
publist_id: '3560'
quality_controlled: '1'
status: public
title: Ionotropic Glutamate Receptors in the CNS
type: book_editor
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 141
year: '1999'
...
---
_id: '3148'
abstract:
- lang: eng
  text: Accurate proteolytic processing of neuropeptide and peptide hormone precursors
    by members of the kexin/furin family of proteases is key to determining both the
    identities and activities of signaling peptides. Here we identify amontillado
    (amon), the Drosophila melanogaster homolog of the mammalian neuropeptide processing
    protease PC2, and show that in contrast to vertebrate PC2, amontillado expression
    undergoes extensive regulation in the nervous system during development. In situ
    hybridization reveals that expression of amontillado is restricted to the final
    stages of embryogenesis when it is found in anterior sensory structures and in
    only 168 cells in the brain and ventral nerve cord. After larvae hatch from their
    egg shells, the sensory structures and most cells in the CNS turn off or substantially
    reduce amontillado expression, suggesting that amontillado plays a specific role
    late in embryogenesis. Larvae lacking the chromosomal region containing amontillado
    show no gross anatomical defects and respond to touch. However, such larvae show
    a greatly reduced frequency of a hatching behavior of wild- type Drosophila in
    which larvae swing their heads, scraping through the eggshell with their mouth
    hooks. Ubiquitous expression of amontillado can restore near wild-type levels
    of this behavior, whereas expression of amontillado with an alanine substitution
    for the catalytic histidine cannot. These results suggest that amontillado expression
    is regulated as part of a programmed modulation of neural signaling that controls
    hatching behavior by producing specific neuropeptides in particular neurons at
    an appropriate developmental time.
acknowledgement: This research was supported by National Institutes of Health Grant
  GM39697 to R.S.F. D.S. was supported in part by National Institutes of Health training
  Grant 2T32GM07599. We thank M. A. Krasnow and members of his laboratory, particularly
  J. Jarecki, for technical guidance, encouragement, and stimulating scientific discussions.
  We thank A. Maghbouleh and the Stanford Statistics Department Consulting Service
  for help with statistical analysis. We thank G. Beitel, S. Dietrich, K. Guillemin,
  D. Micklem, Y. Nakajima, and members of the Fuller and Krasnow laboratories for
  comments on this manuscript. We thank M. Palazzolo for the use of theDrosophila
  head cDNA library, D. Kiehart for the use of a Drosophila myosin antibody, and D.
  Casso, F.-A. Ramirez-Weber, and T. B. Kornberg for use of the D/TM3SbKrGFP flies.
  We thank A. R. Kidd, D. Tolla, and M. Bender and D. Casso, F.-A. Ramirez-Weber and
  T. B. Kornberg for communication of results before publication
article_processing_charge: No
article_type: original
author:
- first_name: Daria E
  full_name: Siekhaus, Daria E
  id: 3D224B9E-F248-11E8-B48F-1D18A9856A87
  last_name: Siekhaus
  orcid: 0000-0001-8323-8353
- first_name: Robert
  full_name: Fuller, Robert
  last_name: Fuller
citation:
  ama: Siekhaus DE, Fuller R. A role for amontillado the Drosophila homolog of the
    neuropeptide precursor processing protease PC2 in triggering hatching behavior.
    <i>Journal of Neuroscience</i>. 1999;19(16):6942-6954. doi:<a href="https://doi.org/10.1523/jneurosci.19-16-06942.1999">10.1523/jneurosci.19-16-06942.1999</a>
  apa: Siekhaus, D. E., &#38; Fuller, R. (1999). A role for amontillado the Drosophila
    homolog of the neuropeptide precursor processing protease PC2 in triggering hatching
    behavior. <i>Journal of Neuroscience</i>. Society for Neuroscience. <a href="https://doi.org/10.1523/jneurosci.19-16-06942.1999">https://doi.org/10.1523/jneurosci.19-16-06942.1999</a>
  chicago: Siekhaus, Daria E, and Robert Fuller. “A Role for Amontillado the Drosophila
    Homolog of the Neuropeptide Precursor Processing Protease PC2 in Triggering Hatching
    Behavior.” <i>Journal of Neuroscience</i>. Society for Neuroscience, 1999. <a
    href="https://doi.org/10.1523/jneurosci.19-16-06942.1999">https://doi.org/10.1523/jneurosci.19-16-06942.1999</a>.
  ieee: D. E. Siekhaus and R. Fuller, “A role for amontillado the Drosophila homolog
    of the neuropeptide precursor processing protease PC2 in triggering hatching behavior,”
    <i>Journal of Neuroscience</i>, vol. 19, no. 16. Society for Neuroscience, pp.
    6942–6954, 1999.
  ista: Siekhaus DE, Fuller R. 1999. A role for amontillado the Drosophila homolog
    of the neuropeptide precursor processing protease PC2 in triggering hatching behavior.
    Journal of Neuroscience. 19(16), 6942–6954.
  mla: Siekhaus, Daria E., and Robert Fuller. “A Role for Amontillado the Drosophila
    Homolog of the Neuropeptide Precursor Processing Protease PC2 in Triggering Hatching
    Behavior.” <i>Journal of Neuroscience</i>, vol. 19, no. 16, Society for Neuroscience,
    1999, pp. 6942–54, doi:<a href="https://doi.org/10.1523/jneurosci.19-16-06942.1999">10.1523/jneurosci.19-16-06942.1999</a>.
  short: D.E. Siekhaus, R. Fuller, Journal of Neuroscience 19 (1999) 6942–6954.
date_created: 2018-12-11T12:01:40Z
date_published: 1999-08-15T00:00:00Z
date_updated: 2022-09-07T13:48:41Z
day: '15'
doi: 10.1523/jneurosci.19-16-06942.1999
extern: '1'
external_id:
  pmid:
  - '10436051 '
intvolume: '        19'
issue: '16'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6782853/
month: '08'
oa: 1
oa_version: Published Version
page: 6942 - 6954
pmid: 1
publication: Journal of Neuroscience
publication_identifier:
  issn:
  - 0270-6474
publication_status: published
publisher: Society for Neuroscience
publist_id: '3547'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A role for amontillado the Drosophila homolog of the neuropeptide precursor
  processing protease PC2 in triggering hatching behavior
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 19
year: '1999'
...
---
_id: '11679'
abstract:
- lang: eng
  text: "We are given a set T = {T 1 ,T 2 , . . .,T k } of rooted binary trees, each
    T i leaf-labeled by a subset L(Ti)⊂{1,2,...,n} . If T is a tree on {1,2, . . .,n
    }, we let T|L denote the minimal subtree of T induced by the nodes of L and all
    their ancestors. The consensus tree problem asks whether there exists a tree T
    * such that, for every i , T∗|L(Ti) is homeomorphic to T i .\r\n\r\nWe present
    algorithms which test if a given set of trees has a consensus tree and if so,
    construct one. The deterministic algorithm takes time min{O(N n 1/2 ), O(N+ n
    2 log n )}, where N=∑i|Ti| , and uses linear space. The randomized algorithm takes
    time O(N log3 n) and uses linear space. The previous best for this problem was
    a 1981 O(Nn) algorithm by Aho et al. Our faster deterministic algorithm uses a
    new efficient algorithm for the following interesting dynamic graph problem: Given
    a graph G with n nodes and m edges and a sequence of b batches of one or more
    edge deletions, then, after each batch, either find a new component that has just
    been created or determine that there is no such component. For this problem, we
    have a simple algorithm with running time O(n 2 log n + b 0 min{n 2 , m log n
    }), where b 0 is the number of batches which do not result in a new component.
    For our particular application, b0≤1 . If all edges are deleted, then the best
    previously known deterministic algorithm requires time O(mn−−√) to solve this
    problem. We also present two applications of these consensus tree algorithms which
    solve other problems in computational evolutionary biology."
article_processing_charge: No
article_type: original
author:
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: V.
  full_name: King, V.
  last_name: King
- first_name: T.
  full_name: Warnow, T.
  last_name: Warnow
citation:
  ama: Henzinger MH, King V, Warnow T. Constructing a tree from homeomorphic subtrees,
    with applications to computational evolutionary biology. <i>Algorithmica</i>.
    1999;24:1-13. doi:<a href="https://doi.org/10.1007/pl00009268">10.1007/pl00009268</a>
  apa: Henzinger, M. H., King, V., &#38; Warnow, T. (1999). Constructing a tree from
    homeomorphic subtrees, with applications to computational evolutionary biology.
    <i>Algorithmica</i>. Springer Nature. <a href="https://doi.org/10.1007/pl00009268">https://doi.org/10.1007/pl00009268</a>
  chicago: Henzinger, Monika H, V. King, and T. Warnow. “Constructing a Tree from
    Homeomorphic Subtrees, with Applications to Computational Evolutionary Biology.”
    <i>Algorithmica</i>. Springer Nature, 1999. <a href="https://doi.org/10.1007/pl00009268">https://doi.org/10.1007/pl00009268</a>.
  ieee: M. H. Henzinger, V. King, and T. Warnow, “Constructing a tree from homeomorphic
    subtrees, with applications to computational evolutionary biology,” <i>Algorithmica</i>,
    vol. 24. Springer Nature, pp. 1–13, 1999.
  ista: Henzinger MH, King V, Warnow T. 1999. Constructing a tree from homeomorphic
    subtrees, with applications to computational evolutionary biology. Algorithmica.
    24, 1–13.
  mla: Henzinger, Monika H., et al. “Constructing a Tree from Homeomorphic Subtrees,
    with Applications to Computational Evolutionary Biology.” <i>Algorithmica</i>,
    vol. 24, Springer Nature, 1999, pp. 1–13, doi:<a href="https://doi.org/10.1007/pl00009268">10.1007/pl00009268</a>.
  short: M.H. Henzinger, V. King, T. Warnow, Algorithmica 24 (1999) 1–13.
date_created: 2022-07-27T15:02:28Z
date_published: 1999-05-01T00:00:00Z
date_updated: 2023-02-21T16:33:24Z
day: '01'
doi: 10.1007/pl00009268
extern: '1'
intvolume: '        24'
keyword:
- Algorithms
- Data structures
- Evolutionary biology
- Theory of databases
language:
- iso: eng
month: '05'
oa_version: None
page: 1-13
publication: Algorithmica
publication_identifier:
  eissn:
  - 1432-0541
  issn:
  - 0178-4617
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '11927'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Constructing a tree from homeomorphic subtrees, with applications to computational
  evolutionary biology
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '1999'
...
---
_id: '11687'
abstract:
- lang: eng
  text: "When using traditional search engines, users have to formulate queries to
    describe their information need. This paper discusses a different approach to
    Web searching where the input to the search process is not a set of query terms,
    but instead is the URL of a page, and the output is a set of related Web pages.
    A related Web page is one that addresses the same topic as the original page.
    For example, www.washingtonpost.com is a page related to www.nytimes.com, since
    both are online newspapers.\r\n\r\nWe describe two algorithms to identify related
    Web pages. These algorithms use only the connectivity information in the Web (i.e.,
    the links between pages) and not the content of pages or usage information. We
    have implemented both algorithms and measured their runtime performance. To evaluate
    the effectiveness of our algorithms, we performed a user study comparing our algorithms
    with Netscape's `What's Related' service (http://home.netscape.com/escapes/related/).
    Our study showed that the precision at 10 for our two algorithms are 73% better
    and 51% better than that of Netscape, despite the fact that Netscape uses both
    content and usage pattern information in addition to connectivity information."
article_processing_charge: No
article_type: original
author:
- first_name: Jeffrey
  full_name: Dean, Jeffrey
  last_name: Dean
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
citation:
  ama: Dean J, Henzinger MH. Finding related pages in the world wide Web. <i>Computer
    Networks</i>. 1999;31(11-16):1467-1479. doi:<a href="https://doi.org/10.1016/s1389-1286(99)00022-5">10.1016/s1389-1286(99)00022-5</a>
  apa: Dean, J., &#38; Henzinger, M. H. (1999). Finding related pages in the world
    wide Web. <i>Computer Networks</i>. Elsevier. <a href="https://doi.org/10.1016/s1389-1286(99)00022-5">https://doi.org/10.1016/s1389-1286(99)00022-5</a>
  chicago: Dean, Jeffrey, and Monika H Henzinger. “Finding Related Pages in the World
    Wide Web.” <i>Computer Networks</i>. Elsevier, 1999. <a href="https://doi.org/10.1016/s1389-1286(99)00022-5">https://doi.org/10.1016/s1389-1286(99)00022-5</a>.
  ieee: J. Dean and M. H. Henzinger, “Finding related pages in the world wide Web,”
    <i>Computer Networks</i>, vol. 31, no. 11–16. Elsevier, pp. 1467–1479, 1999.
  ista: Dean J, Henzinger MH. 1999. Finding related pages in the world wide Web. Computer
    Networks. 31(11–16), 1467–1479.
  mla: Dean, Jeffrey, and Monika H. Henzinger. “Finding Related Pages in the World
    Wide Web.” <i>Computer Networks</i>, vol. 31, no. 11–16, Elsevier, 1999, pp. 1467–79,
    doi:<a href="https://doi.org/10.1016/s1389-1286(99)00022-5">10.1016/s1389-1286(99)00022-5</a>.
  short: J. Dean, M.H. Henzinger, Computer Networks 31 (1999) 1467–1479.
date_created: 2022-07-29T06:55:26Z
date_published: 1999-05-17T00:00:00Z
date_updated: 2022-09-12T09:12:21Z
day: '17'
doi: 10.1016/s1389-1286(99)00022-5
extern: '1'
intvolume: '        31'
issue: 11-16
keyword:
- Search engines
- Related pages
- Searching paradigms
language:
- iso: eng
month: '05'
oa_version: None
page: 1467-1479
publication: Computer Networks
publication_identifier:
  issn:
  - 1389-1286
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Finding related pages in the world wide Web
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 31
year: '1999'
...
---
_id: '11688'
abstract:
- lang: eng
  text: Recent research has studied how to measure the size of a search engine, in
    terms of the number of pages indexed. In this paper, we consider a different measure
    for search engines, namely the quality of the pages in a search engine index.
    We provide a simple, effective algorithm for approximating the quality of an index
    by performing a random walk on the Web, and we use this methodology to compare
    the index quality of several major search engines.
article_processing_charge: No
article_type: original
author:
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Allan
  full_name: Heydon, Allan
  last_name: Heydon
- first_name: Michael
  full_name: Mitzenmacher, Michael
  last_name: Mitzenmacher
- first_name: Marc
  full_name: Najork, Marc
  last_name: Najork
citation:
  ama: Henzinger MH, Heydon A, Mitzenmacher M, Najork M. Measuring index quality using
    random walks on the web. <i>Computer Networks</i>. 1999;31(11-16):1291-1303. doi:<a
    href="https://doi.org/10.1016/s1389-1286(99)00016-x">10.1016/s1389-1286(99)00016-x</a>
  apa: Henzinger, M. H., Heydon, A., Mitzenmacher, M., &#38; Najork, M. (1999). Measuring
    index quality using random walks on the web. <i>Computer Networks</i>. Elsevier.
    <a href="https://doi.org/10.1016/s1389-1286(99)00016-x">https://doi.org/10.1016/s1389-1286(99)00016-x</a>
  chicago: Henzinger, Monika H, Allan Heydon, Michael Mitzenmacher, and Marc Najork.
    “Measuring Index Quality Using Random Walks on the Web.” <i>Computer Networks</i>.
    Elsevier, 1999. <a href="https://doi.org/10.1016/s1389-1286(99)00016-x">https://doi.org/10.1016/s1389-1286(99)00016-x</a>.
  ieee: M. H. Henzinger, A. Heydon, M. Mitzenmacher, and M. Najork, “Measuring index
    quality using random walks on the web,” <i>Computer Networks</i>, vol. 31, no.
    11–16. Elsevier, pp. 1291–1303, 1999.
  ista: Henzinger MH, Heydon A, Mitzenmacher M, Najork M. 1999. Measuring index quality
    using random walks on the web. Computer Networks. 31(11–16), 1291–1303.
  mla: Henzinger, Monika H., et al. “Measuring Index Quality Using Random Walks on
    the Web.” <i>Computer Networks</i>, vol. 31, no. 11–16, Elsevier, 1999, pp. 1291–303,
    doi:<a href="https://doi.org/10.1016/s1389-1286(99)00016-x">10.1016/s1389-1286(99)00016-x</a>.
  short: M.H. Henzinger, A. Heydon, M. Mitzenmacher, M. Najork, Computer Networks
    31 (1999) 1291–1303.
date_created: 2022-07-29T07:00:28Z
date_published: 1999-05-17T00:00:00Z
date_updated: 2022-09-12T09:13:55Z
day: '17'
doi: 10.1016/s1389-1286(99)00016-x
extern: '1'
intvolume: '        31'
issue: 11-16
keyword:
- Search engines
- Index quality
- Random walks
- PageRank
language:
- iso: eng
month: '05'
oa_version: None
page: 1291-1303
publication: Computer Networks
publication_identifier:
  issn:
  - 1389-1286
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Measuring index quality using random walks on the web
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 31
year: '1999'
...
---
_id: '11691'
abstract:
- lang: eng
  text: In this paper we consider the online ftp problem. The goal is to service a
    sequence of file transfer requests given bandwidth constraints of the underlying
    communication network. The main result of the paper is a technique that leads
    to algorithms that optimize several natural metrics, such as max-stretch, total
    flow time, max flow time, and total completion time. In particular, we show how
    to achieve optimum total flow time and optimum max-stretch if we increase the
    capacity of the underlying network by a logarithmic factor. We show that the resource
    augmentation is necessary by proving polynomial lower bounds on the max-stretch
    and total flow time for the case where online and offline algorithms are using
    same-capacity edges. Moreover, we also give polylogarithmic lower bounds on the
    resource augmentation factor necessary in order to keep the total flow time and
    max-stretch within a constant factor of optimum.
article_processing_charge: No
author:
- first_name: Ashish
  full_name: Goel, Ashish
  last_name: Goel
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Serge
  full_name: Plotkin, Serge
  last_name: Plotkin
- first_name: Eva
  full_name: Tardos, Eva
  last_name: Tardos
citation:
  ama: 'Goel A, Henzinger MH, Plotkin S, Tardos E. Scheduling data transfers in a
    network and the set scheduling problem. In: <i>Proceedings of the 31st Annual
    ACM Symposium on Theory of Computing</i>. Association for Computing Machinery;
    1999:189-197. doi:<a href="https://doi.org/10.1145/301250.301300">10.1145/301250.301300</a>'
  apa: 'Goel, A., Henzinger, M. H., Plotkin, S., &#38; Tardos, E. (1999). Scheduling
    data transfers in a network and the set scheduling problem. In <i>Proceedings
    of the 31st annual ACM symposium on Theory of computing</i> (pp. 189–197).  Atlanta,
    GA, United States: Association for Computing Machinery. <a href="https://doi.org/10.1145/301250.301300">https://doi.org/10.1145/301250.301300</a>'
  chicago: Goel, Ashish, Monika H Henzinger, Serge Plotkin, and Eva Tardos. “Scheduling
    Data Transfers in a Network and the Set Scheduling Problem.” In <i>Proceedings
    of the 31st Annual ACM Symposium on Theory of Computing</i>, 189–97. Association
    for Computing Machinery, 1999. <a href="https://doi.org/10.1145/301250.301300">https://doi.org/10.1145/301250.301300</a>.
  ieee: A. Goel, M. H. Henzinger, S. Plotkin, and E. Tardos, “Scheduling data transfers
    in a network and the set scheduling problem,” in <i>Proceedings of the 31st annual
    ACM symposium on Theory of computing</i>,  Atlanta, GA, United States, 1999, pp.
    189–197.
  ista: 'Goel A, Henzinger MH, Plotkin S, Tardos E. 1999. Scheduling data transfers
    in a network and the set scheduling problem. Proceedings of the 31st annual ACM
    symposium on Theory of computing. STOC: Symposium on Theory of Computing, 189–197.'
  mla: Goel, Ashish, et al. “Scheduling Data Transfers in a Network and the Set Scheduling
    Problem.” <i>Proceedings of the 31st Annual ACM Symposium on Theory of Computing</i>,
    Association for Computing Machinery, 1999, pp. 189–97, doi:<a href="https://doi.org/10.1145/301250.301300">10.1145/301250.301300</a>.
  short: A. Goel, M.H. Henzinger, S. Plotkin, E. Tardos, in:, Proceedings of the 31st
    Annual ACM Symposium on Theory of Computing, Association for Computing Machinery,
    1999, pp. 189–197.
conference:
  end_date: 1999-05-04
  location: ' Atlanta, GA, United States'
  name: 'STOC: Symposium on Theory of Computing'
  start_date: 1999-05-01
date_created: 2022-07-29T07:43:00Z
date_published: 1999-05-01T00:00:00Z
date_updated: 2023-02-09T11:47:09Z
day: '01'
doi: 10.1145/301250.301300
extern: '1'
keyword:
- Scheduling
- Flow time
language:
- iso: eng
month: '05'
oa_version: None
page: 189-197
publication: Proceedings of the 31st annual ACM symposium on Theory of computing
publication_identifier:
  issn:
  - 0196-6774
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Scheduling data transfers in a network and the set scheduling problem
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '1999'
...
---
_id: '11769'
abstract:
- lang: eng
  text: "This paper solves a longstanding open problem in fully dynamic algorithms:
    We present the first fully dynamic algorithms that maintain connectivity, bipartiteness,
    and approximate minimum spanning trees in polylogarithmic time per edge insertion
    or deletion. The algorithms are designed using a new dynamic technique that combines
    a novel graph decomposition with randomization. They are Las-Vegas type randomized
    algorithms which use simple data structures and have a small constant factor.\r\nLet
    n denote the number of nodes in the graph. For a sequence of Ω(m0) operations,
    where m0 is the number of edges in the initial graph, the expected time for p
    updates is O(p log3 n) (througout the paper the logarithms are based 2) for connectivity
    and bipartiteness. The worst-case time for one query is O(log n/log log n). For
    the k-edge witness problem (“Does the removal of k given edges disconnect the
    graph?”) the expected time for p updates is O(p log3 n) and the expected time
    for q queries is O(qk log3 n). Given a graph with k different weights, the minimum
    spanning tree can be maintained during a sequence of p updates in expected time
    O(pk log3 n). This implies an algorithm to maintain a 1 + ε-approximation of the
    minimum spanning tree in expected time O((p log3 n logU)/ε) for p updates, where
    the weights of the edges are between 1 and U."
article_processing_charge: No
article_type: original
author:
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Valerie
  full_name: King, Valerie
  last_name: King
citation:
  ama: Henzinger MH, King V. Randomized fully dynamic graph algorithms with polylogarithmic
    time per operation. <i>Journal of the ACM</i>. 1999;46(4):502-516. doi:<a href="https://doi.org/10.1145/320211.320215">10.1145/320211.320215</a>
  apa: Henzinger, M. H., &#38; King, V. (1999). Randomized fully dynamic graph algorithms
    with polylogarithmic time per operation. <i>Journal of the ACM</i>. Association
    for Computing Machinery. <a href="https://doi.org/10.1145/320211.320215">https://doi.org/10.1145/320211.320215</a>
  chicago: Henzinger, Monika H, and Valerie King. “Randomized Fully Dynamic Graph
    Algorithms with Polylogarithmic Time per Operation.” <i>Journal of the ACM</i>.
    Association for Computing Machinery, 1999. <a href="https://doi.org/10.1145/320211.320215">https://doi.org/10.1145/320211.320215</a>.
  ieee: M. H. Henzinger and V. King, “Randomized fully dynamic graph algorithms with
    polylogarithmic time per operation,” <i>Journal of the ACM</i>, vol. 46, no. 4.
    Association for Computing Machinery, pp. 502–516, 1999.
  ista: Henzinger MH, King V. 1999. Randomized fully dynamic graph algorithms with
    polylogarithmic time per operation. Journal of the ACM. 46(4), 502–516.
  mla: Henzinger, Monika H., and Valerie King. “Randomized Fully Dynamic Graph Algorithms
    with Polylogarithmic Time per Operation.” <i>Journal of the ACM</i>, vol. 46,
    no. 4, Association for Computing Machinery, 1999, pp. 502–16, doi:<a href="https://doi.org/10.1145/320211.320215">10.1145/320211.320215</a>.
  short: M.H. Henzinger, V. King, Journal of the ACM 46 (1999) 502–516.
date_created: 2022-08-08T12:50:25Z
date_published: 1999-07-01T00:00:00Z
date_updated: 2022-09-12T10:50:08Z
day: '01'
doi: 10.1145/320211.320215
extern: '1'
intvolume: '        46'
issue: '4'
language:
- iso: eng
month: '07'
oa_version: None
page: 502-516
publication: Journal of the ACM
publication_identifier:
  eissn:
  - 1557-735X
  issn:
  - 0004-5411
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Randomized fully dynamic graph algorithms with polylogarithmic time per operation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 46
year: '1999'
...
---
_id: '8526'
article_processing_charge: No
article_type: original
author:
- first_name: Vadim
  full_name: Kaloshin, Vadim
  id: FE553552-CDE8-11E9-B324-C0EBE5697425
  last_name: Kaloshin
  orcid: 0000-0002-6051-2628
citation:
  ama: Kaloshin V. An extension of the Artin-Mazur theorem. <i>The Annals of Mathematics</i>.
    1999;150(2):729-741. doi:<a href="https://doi.org/10.2307/121093">10.2307/121093</a>
  apa: Kaloshin, V. (1999). An extension of the Artin-Mazur theorem. <i>The Annals
    of Mathematics</i>. JSTOR. <a href="https://doi.org/10.2307/121093">https://doi.org/10.2307/121093</a>
  chicago: Kaloshin, Vadim. “An Extension of the Artin-Mazur Theorem.” <i>The Annals
    of Mathematics</i>. JSTOR, 1999. <a href="https://doi.org/10.2307/121093">https://doi.org/10.2307/121093</a>.
  ieee: V. Kaloshin, “An extension of the Artin-Mazur theorem,” <i>The Annals of Mathematics</i>,
    vol. 150, no. 2. JSTOR, pp. 729–741, 1999.
  ista: Kaloshin V. 1999. An extension of the Artin-Mazur theorem. The Annals of Mathematics.
    150(2), 729–741.
  mla: Kaloshin, Vadim. “An Extension of the Artin-Mazur Theorem.” <i>The Annals of
    Mathematics</i>, vol. 150, no. 2, JSTOR, 1999, pp. 729–41, doi:<a href="https://doi.org/10.2307/121093">10.2307/121093</a>.
  short: V. Kaloshin, The Annals of Mathematics 150 (1999) 729–741.
date_created: 2020-09-18T10:50:28Z
date_published: 1999-09-01T00:00:00Z
date_updated: 2021-01-12T08:19:53Z
day: '01'
doi: 10.2307/121093
extern: '1'
intvolume: '       150'
issue: '2'
keyword:
- Statistics
- Probability and Uncertainty
- Statistics and Probability
language:
- iso: eng
month: '09'
oa_version: None
page: 729-741
publication: The Annals of Mathematics
publication_identifier:
  issn:
  - 0003-486X
publication_status: published
publisher: JSTOR
quality_controlled: '1'
status: public
title: An extension of the Artin-Mazur theorem
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 150
year: '1999'
...
---
_id: '883'
abstract:
- lang: eng
  text: Sympatric speciation, the origin of two or more species from a single local
    population, has almost certainly been involved in formation of several species
    flocks, and may be fairly common in nature. The most straightforward scenario
    for sympatric speciation requires disruptive selection favouring two substantially
    different phenotypes, and consists of the evolution of reproductive isolation
    between them followed by the elimination of all intermediate phenotypes. Here
    we use the hypergeometric phenotypic model to show that sympatric speciation is
    possible even when fitness and mate choice depend on different quantitative traits,
    so that speciation must involve formation of covariance between these traits.
    The increase in the number of variable loci affecting fitness facilitates sympatric
    speciation, whereas the increase in the number of variable loci affecting mate
    choice has the opposite effect. These predictions may enable more cases of sympatric
    speciation to be identified.
acknowledgement: This study was supported by a grant from the NSF.
article_processing_charge: No
article_type: original
author:
- first_name: Alexey
  full_name: Kondrashov, Alexey
  last_name: Kondrashov
- first_name: Fyodor
  full_name: Kondrashov, Fyodor
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
citation:
  ama: Kondrashov A, Kondrashov F. Interactions among quantitative traits in the course
    of sympatric speciation. <i>Nature</i>. 1999;400(6742):351-354. doi:<a href="https://doi.org/10.1038/22514">10.1038/22514</a>
  apa: Kondrashov, A., &#38; Kondrashov, F. (1999). Interactions among quantitative
    traits in the course of sympatric speciation. <i>Nature</i>. Nature Publishing
    Group. <a href="https://doi.org/10.1038/22514">https://doi.org/10.1038/22514</a>
  chicago: Kondrashov, Alexey, and Fyodor Kondrashov. “Interactions among Quantitative
    Traits in the Course of Sympatric Speciation.” <i>Nature</i>. Nature Publishing
    Group, 1999. <a href="https://doi.org/10.1038/22514">https://doi.org/10.1038/22514</a>.
  ieee: A. Kondrashov and F. Kondrashov, “Interactions among quantitative traits in
    the course of sympatric speciation,” <i>Nature</i>, vol. 400, no. 6742. Nature
    Publishing Group, pp. 351–354, 1999.
  ista: Kondrashov A, Kondrashov F. 1999. Interactions among quantitative traits in
    the course of sympatric speciation. Nature. 400(6742), 351–354.
  mla: Kondrashov, Alexey, and Fyodor Kondrashov. “Interactions among Quantitative
    Traits in the Course of Sympatric Speciation.” <i>Nature</i>, vol. 400, no. 6742,
    Nature Publishing Group, 1999, pp. 351–54, doi:<a href="https://doi.org/10.1038/22514">10.1038/22514</a>.
  short: A. Kondrashov, F. Kondrashov, Nature 400 (1999) 351–354.
date_created: 2018-12-11T11:49:00Z
date_published: 1999-07-01T00:00:00Z
date_updated: 2023-04-13T10:33:44Z
day: '01'
doi: 10.1038/22514
extern: '1'
external_id:
  pmid:
  - '10432111'
intvolume: '       400'
issue: '6742'
language:
- iso: eng
month: '07'
oa_version: None
page: 351 - 354
pmid: 1
publication: Nature
publication_identifier:
  issn:
  - 0028-0836
publication_status: published
publisher: Nature Publishing Group
publist_id: '6761'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interactions among quantitative traits in the course of sympatric speciation
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 400
year: '1999'
...
---
_id: '4582'
abstract:
- lang: eng
  text: "We present a formal model for concurrent systems. The model represents synchronous
    and asynchronous components in a uniform framework that supports compositional
    (assume-guarantee) and hierarchical (stepwise-refinement) design and verification.
    While synchronous models are based on a notion of atomic computation step, and
    asynchronous models remove that notion by introducing stuttering, our model is
    based on a flexible notion of what constitutes a computation step: by applying
    an abstraction operator to a system, arbitrarily many consecutive steps can be
    collapsed into a single step. The abstraction operator, which may turn an asynchronous
    system into a synchronous one, allows us to describe systems at various levels
    of temporal detail. For describing systems at various levels of spatial detail,
    we use a hiding operator that may turn a synchronous system into an asynchronous
    one. We illustrate the model with diverse examples from synchronous circuits,
    asynchronous shared-memory programs, and synchronous message-passing protocols.\r\n"
acknowledgement: "We thank Albert Benveniste, Bob Kurshan, Ken McMillan, Amir Pnueli,
  and the VIS group at UC Berkeley for fruitful discussions. We also thank the anonymous
  referees for suggesting improvements. Alur was supported in part by the DARPA/NASA
  grant NAG2-1214 and Henzinger was supported in part by the ONR YIP award N00014-95-1-0520,
  the\r\nNSF CAREER award CCR-9501708, the NSF grant CCR-9504469, the DARPA/NASA grant
  NAG2-1214, and by the SRC contract 97-DC-324.041."
article_processing_charge: No
article_type: original
author:
- first_name: Rajeev
  full_name: Alur, Rajeev
  last_name: Alur
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
citation:
  ama: Alur R, Henzinger TA. Reactive modules. <i>Formal Methods in System Design</i>.
    1999;15(1):7-48. doi:<a href="https://doi.org/10.1023/A:1008739929481">10.1023/A:1008739929481</a>
  apa: Alur, R., &#38; Henzinger, T. A. (1999). Reactive modules. <i>Formal Methods
    in System Design</i>. Springer. <a href="https://doi.org/10.1023/A:1008739929481">https://doi.org/10.1023/A:1008739929481</a>
  chicago: Alur, Rajeev, and Thomas A Henzinger. “Reactive Modules.” <i>Formal Methods
    in System Design</i>. Springer, 1999. <a href="https://doi.org/10.1023/A:1008739929481">https://doi.org/10.1023/A:1008739929481</a>.
  ieee: R. Alur and T. A. Henzinger, “Reactive modules,” <i>Formal Methods in System
    Design</i>, vol. 15, no. 1. Springer, pp. 7–48, 1999.
  ista: Alur R, Henzinger TA. 1999. Reactive modules. Formal Methods in System Design.
    15(1), 7–48.
  mla: Alur, Rajeev, and Thomas A. Henzinger. “Reactive Modules.” <i>Formal Methods
    in System Design</i>, vol. 15, no. 1, Springer, 1999, pp. 7–48, doi:<a href="https://doi.org/10.1023/A:1008739929481">10.1023/A:1008739929481</a>.
  short: R. Alur, T.A. Henzinger, Formal Methods in System Design 15 (1999) 7–48.
date_created: 2018-12-11T12:09:35Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2022-09-02T08:45:58Z
day: '01'
doi: 10.1023/A:1008739929481
extern: '1'
intvolume: '        15'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 7 - 48
publication: Formal Methods in System Design
publication_identifier:
  issn:
  - 0925-9856
publication_status: published
publisher: Springer
publist_id: '125'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Reactive modules
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 15
year: '1999'
...
---
_id: '4601'
abstract:
- lang: eng
  text: "Temporal logic comes in two varieties: linear-time temporal logic assumes
    implicit universal quantification over all paths that are generated by system
    moves; branching-time temporal logic allows explicit existential and universal
    quantification over all paths. We introduce a third, more general variety of temporal
    logic: alternating-time temporal logic offers selective quantification over those
    paths that are possible outcomes of games, such as the game in which the system
    and the environment alternate moves. While linear-time and branching-time logics
    are natural specification languages for closed systems, alternating-time logics
    are natural specification languages for open systems. For example, by preceding
    the temporal operator “eventually” with a selective path quantifier, we can specify
    that in the game between the system and the environment, the system has a strategy
    to reach a certain state. Also the problems of receptiveness, realizability, and
    controllability can be formulated as model-checking problems for alternating-time
    formulas.\r\nDepending on whether we admit arbitrary nesting of selective path
    quantifiers and temporal operators, we obtain the two alternating-time temporal
    logics ATL and ATL. We interpret the formulas of ATL and ATL over alternating
    transition systems. While in ordinary transition systems, each transition corresponds
    to a possible step of the system, in alternating transition systems, each transition
    corresponds to a possible move in the game between the system and the environment.
    Fair alternating transition systems can capture both synchronous and asynchronous
    compositions of open systems. For synchronous systems, the expressive power of
    ATL beyond CTL comes at no cost: the model-checking complexity of synchronous
    ATL is linear in the size of the system and the length of the formula. The symbolic
    model-checking algorithm for CTL extends with few modifications to synchronous
    ATL, and with some work, also to asynchronous ATL, whose model-checking complexity
    is quadratic. This makes ATL an obvious candidate for the automatic verification
    of open systems. In the case of ATL, the model-checking problem is closely related
    to the synthesis problem for linear-time formulas, and requires doubly exponential
    time for both synchronous and asynchronous systems.\r\nA preliminary version of
    this paper appeared in the Proceedings of the 38th IEEE Symposium on Foundations
    of Computer Science (FOCS 1997), pp. 100–109."
acknowledgement: This work was supported in part by the ONR YIP award N00014-95-1-0520,
  by the NSF CAREER award CCR-9501708, by the NSF grant CCR-9504469, by the AFOSR
  contract F49620-93-1-0056, by the ARO MURI grant DAAH-04-96-1-0341, by the ARPA
  grant NAG2-892, and by the SRC contract 97-DC-324.041.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Rajeev
  full_name: Alur, Rajeev
  last_name: Alur
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Orna
  full_name: Kupferman, Orna
  last_name: Kupferman
citation:
  ama: 'Alur R, Henzinger TA, Kupferman O. Alternating-time temporal logic. In: <i>Proceedings
    of the International Symposium on Compositionality</i>. Vol 1536. Springer; 1999:23-60.
    doi:<a href="https://doi.org/10.1007/3-540-49213-5_2">10.1007/3-540-49213-5_2</a>'
  apa: 'Alur, R., Henzinger, T. A., &#38; Kupferman, O. (1999). Alternating-time temporal
    logic. In <i>Proceedings of the International Symposium on Compositionality</i>
    (Vol. 1536, pp. 23–60). Bad Malente, Germany: Springer. <a href="https://doi.org/10.1007/3-540-49213-5_2">https://doi.org/10.1007/3-540-49213-5_2</a>'
  chicago: Alur, Rajeev, Thomas A Henzinger, and Orna Kupferman. “Alternating-Time
    Temporal Logic.” In <i>Proceedings of the International Symposium on Compositionality</i>,
    1536:23–60. Springer, 1999. <a href="https://doi.org/10.1007/3-540-49213-5_2">https://doi.org/10.1007/3-540-49213-5_2</a>.
  ieee: R. Alur, T. A. Henzinger, and O. Kupferman, “Alternating-time temporal logic,”
    in <i>Proceedings of the International Symposium on Compositionality</i>, Bad
    Malente, Germany, 1999, vol. 1536, pp. 23–60.
  ista: 'Alur R, Henzinger TA, Kupferman O. 1999. Alternating-time temporal logic.
    Proceedings of the International Symposium on Compositionality. COMPOS: Compositionality,
    LNCS, vol. 1536, 23–60.'
  mla: Alur, Rajeev, et al. “Alternating-Time Temporal Logic.” <i>Proceedings of the
    International Symposium on Compositionality</i>, vol. 1536, Springer, 1999, pp.
    23–60, doi:<a href="https://doi.org/10.1007/3-540-49213-5_2">10.1007/3-540-49213-5_2</a>.
  short: R. Alur, T.A. Henzinger, O. Kupferman, in:, Proceedings of the International
    Symposium on Compositionality, Springer, 1999, pp. 23–60.
conference:
  end_date: 1997-09-12
  location: Bad Malente, Germany
  name: 'COMPOS: Compositionality'
  start_date: 1997-09-08
date_created: 2018-12-11T12:09:41Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2022-09-01T14:23:41Z
day: '01'
doi: 10.1007/3-540-49213-5_2
extern: '1'
intvolume: '      1536'
language:
- iso: eng
month: '01'
oa_version: None
page: 23 - 60
publication: Proceedings of the International Symposium on Compositionality
publication_identifier:
  isbn:
  - '9783540654933'
publication_status: published
publisher: Springer
publist_id: '106'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Alternating-time temporal logic
type: conference
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 1536
year: '1999'
...
---
_id: '4602'
abstract:
- lang: eng
  text: 'Modular techniques for automatic verification attempt to overcome the state-explosion
    problem by exploiting the modular structure naturally present in many system designs.
    Unlike other tasks in the verification of finite-state systems, current modular
    techniques rely heavily on user guidance. In particular, the user is typically
    required to construct module abstractions that are neither too detailed as to
    render insufficient benefits in state exploration, nor too coarse as to invalidate
    the desired systemproperties. In this paper, we construct abstractmodules automatically,
    using reachability and controllability information about the concrete modules.
    This allows us to leverage automatic verification techniques by applying them
    in layers: first we compute on the state spaces of system components, then we
    use the results for constructing abstractions, and finally we compute on the abstract
    state space of the system. Our experimental results indicate that if reachability
    and controllability information is used in the construction of abstractions, the
    resulting abstract modules are often significantly smaller than the concrete modules
    and can drastically reduce the space and time requirements for verification.'
acknowledgement: This research was supported in part by the NSF CAREER award CCR-9734115,
  by the NSF CAREER award CCR-9501708, by the DARPA (NASA Ames) grant NAG2-1214, by
  the DARPA (Wright-Patterson AFB) grant F33615-98-C-3614, by the ARO MURI grant DAAH-
  04-96-1-0341, and by the Gigascale Silicon Research Center.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Rajeev
  full_name: Alur, Rajeev
  last_name: Alur
- first_name: Luca
  full_name: De Alfaro, Luca
  last_name: De Alfaro
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Freddy
  full_name: Mang, Freddy
  last_name: Mang
citation:
  ama: 'Alur R, De Alfaro L, Henzinger TA, Mang F. Automating modular verification.
    In: <i>Proceedings of the 10th International Conference on Concurrency Theory</i>.
    Vol 1664. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 1999:82-97. doi:<a
    href="https://doi.org/10.1007/3-540-48320-9_8">10.1007/3-540-48320-9_8</a>'
  apa: 'Alur, R., De Alfaro, L., Henzinger, T. A., &#38; Mang, F. (1999). Automating
    modular verification. In <i>Proceedings of the 10th International Conference on
    Concurrency Theory</i> (Vol. 1664, pp. 82–97). Eindhoven, The Netherlands: Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.1007/3-540-48320-9_8">https://doi.org/10.1007/3-540-48320-9_8</a>'
  chicago: Alur, Rajeev, Luca De Alfaro, Thomas A Henzinger, and Freddy Mang. “Automating
    Modular Verification.” In <i>Proceedings of the 10th International Conference
    on Concurrency Theory</i>, 1664:82–97. Schloss Dagstuhl - Leibniz-Zentrum für
    Informatik, 1999. <a href="https://doi.org/10.1007/3-540-48320-9_8">https://doi.org/10.1007/3-540-48320-9_8</a>.
  ieee: R. Alur, L. De Alfaro, T. A. Henzinger, and F. Mang, “Automating modular verification,”
    in <i>Proceedings of the 10th International Conference on Concurrency Theory</i>,
    Eindhoven, The Netherlands, 1999, vol. 1664, pp. 82–97.
  ista: 'Alur R, De Alfaro L, Henzinger TA, Mang F. 1999. Automating modular verification.
    Proceedings of the 10th International Conference on Concurrency Theory. CONCUR:
    Concurrency Theory, LNCS, vol. 1664, 82–97.'
  mla: Alur, Rajeev, et al. “Automating Modular Verification.” <i>Proceedings of the
    10th International Conference on Concurrency Theory</i>, vol. 1664, Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 1999, pp. 82–97, doi:<a href="https://doi.org/10.1007/3-540-48320-9_8">10.1007/3-540-48320-9_8</a>.
  short: R. Alur, L. De Alfaro, T.A. Henzinger, F. Mang, in:, Proceedings of the 10th
    International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 1999, pp. 82–97.
conference:
  end_date: 1999-08-27
  location: Eindhoven, The Netherlands
  name: 'CONCUR: Concurrency Theory'
  start_date: 1999-08-24
date_created: 2018-12-11T12:09:42Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2022-09-01T14:15:35Z
day: '01'
doi: 10.1007/3-540-48320-9_8
extern: '1'
intvolume: '      1664'
language:
- iso: eng
month: '01'
oa_version: None
page: 82 - 97
publication: Proceedings of the 10th International Conference on Concurrency Theory
publication_identifier:
  isbn:
  - '9783540664253'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '105'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Automating modular verification
type: conference
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 1664
year: '1999'
...
---
_id: '11895'
abstract:
- lang: eng
  text: In this paper we present an analysis of an AltaVista Search Engine query log
    consisting of approximately 1 billion entries for search requests over a period
    of six weeks. This represents almost 285 million user sessions, each an attempt
    to fill a single information need. We present an analysis of individual queries,
    query duplication, and query sessions. We also present results of a correlation
    analysis of the log entries, studying the interaction of terms within queries.
    Our data supports the conjecture that web users differ significantly from the
    user assumed in the standard information retrieval literature. Specifically, we
    show that web users type in short queries, mostly look at the first 10 results
    only, and seldom modify the query. This suggests that traditional information
    retrieval techniques may not work well for answering web search requests. The
    correlation analysis showed that the most highly correlated items are constituents
    of phrases. This result indicates it may be useful for search engines to consider
    search terms as parts of phrases even if the user did not explicitly specify them
    as such.
article_processing_charge: No
article_type: original
author:
- first_name: Craig
  full_name: Silverstein, Craig
  last_name: Silverstein
- first_name: Hannes
  full_name: Marais, Hannes
  last_name: Marais
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Michael
  full_name: Moricz, Michael
  last_name: Moricz
citation:
  ama: Silverstein C, Marais H, Henzinger MH, Moricz M. Analysis of a very large web
    search engine query log. <i>ACM SIGIR Forum</i>. 1999;33(1):6-12. doi:<a href="https://doi.org/10.1145/331403.331405">10.1145/331403.331405</a>
  apa: Silverstein, C., Marais, H., Henzinger, M. H., &#38; Moricz, M. (1999). Analysis
    of a very large web search engine query log. <i>ACM SIGIR Forum</i>. Association
    for Computing Machinery. <a href="https://doi.org/10.1145/331403.331405">https://doi.org/10.1145/331403.331405</a>
  chicago: Silverstein, Craig, Hannes Marais, Monika H Henzinger, and Michael Moricz.
    “Analysis of a Very Large Web Search Engine Query Log.” <i>ACM SIGIR Forum</i>.
    Association for Computing Machinery, 1999. <a href="https://doi.org/10.1145/331403.331405">https://doi.org/10.1145/331403.331405</a>.
  ieee: C. Silverstein, H. Marais, M. H. Henzinger, and M. Moricz, “Analysis of a
    very large web search engine query log,” <i>ACM SIGIR Forum</i>, vol. 33, no.
    1. Association for Computing Machinery, pp. 6–12, 1999.
  ista: Silverstein C, Marais H, Henzinger MH, Moricz M. 1999. Analysis of a very
    large web search engine query log. ACM SIGIR Forum. 33(1), 6–12.
  mla: Silverstein, Craig, et al. “Analysis of a Very Large Web Search Engine Query
    Log.” <i>ACM SIGIR Forum</i>, vol. 33, no. 1, Association for Computing Machinery,
    1999, pp. 6–12, doi:<a href="https://doi.org/10.1145/331403.331405">10.1145/331403.331405</a>.
  short: C. Silverstein, H. Marais, M.H. Henzinger, M. Moricz, ACM SIGIR Forum 33
    (1999) 6–12.
date_created: 2022-08-17T08:53:02Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2023-02-17T14:46:04Z
day: '01'
doi: 10.1145/331403.331405
extern: '1'
intvolume: '        33'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1145/331403.331405
month: '01'
oa: 1
oa_version: Published Version
page: 6-12
publication: ACM SIGIR Forum
publication_identifier:
  issn:
  - 0163-5840
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Analysis of a very large web search engine query log
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '1999'
...
---
_id: '11925'
abstract:
- lang: eng
  text: "This paper studies the multicast routing and admission control problem on
    unit-capacity tree and mesh topologies in the throughput-model. The problem is
    a generalization of the edge-disjoint paths problem and is NPhard both on trees
    and meshes. We study both the offline and the online version of the problem: In
    the offline setting, we give the first\r\nconstant-factor approximation algorithm
    for trees, and an O((log log n)*)-factor approximation algorithm for meshes, where
    n is the number of nodes in the graph. In the online setting, we give the first
    polylogarithrnic competitive online algorithm for tree and mesh topologies. No
    polylogarithmic-competitive algorithm is possible on general network topologies
    [8] and there\r\nexists a polylogarithmic lower bound on the competitive ratio
    of any online algorithm on tree topologies [l]. We prove the same lower bound
    for meshes. "
article_processing_charge: No
author:
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Stefano
  full_name: Leonardi   , Stefano
  last_name: 'Leonardi   '
citation:
  ama: 'Henzinger MH, Leonardi    S. Scheduling multicasts on unit-capacity trees
    and meshes. In: <i>10th Annual ACM-SIAM Symposium on Discrete Algorithms</i>.
    Society for Industrial &#38; Applied Mathematics; 1999:438-447.'
  apa: 'Henzinger, M. H., &#38; Leonardi   , S. (1999). Scheduling multicasts on unit-capacity
    trees and meshes. In <i>10th Annual ACM-SIAM Symposium on Discrete Algorithms</i>
    (pp. 438–447). Baltimore, MD, United States: Society for Industrial &#38; Applied
    Mathematics.'
  chicago: Henzinger, Monika H, and Stefano Leonardi   . “Scheduling Multicasts on
    Unit-Capacity Trees and Meshes.” In <i>10th Annual ACM-SIAM Symposium on Discrete
    Algorithms</i>, 438–47. Society for Industrial &#38; Applied Mathematics, 1999.
  ieee: M. H. Henzinger and S. Leonardi   , “Scheduling multicasts on unit-capacity
    trees and meshes,” in <i>10th Annual ACM-SIAM Symposium on Discrete Algorithms</i>,
    Baltimore, MD, United States, 1999, pp. 438–447.
  ista: 'Henzinger MH, Leonardi    S. 1999. Scheduling multicasts on unit-capacity
    trees and meshes. 10th Annual ACM-SIAM Symposium on Discrete Algorithms. SODA:
    Symposium on Discrete Algorithms, 438–447.'
  mla: Henzinger, Monika H., and Stefano Leonardi   . “Scheduling Multicasts on Unit-Capacity
    Trees and Meshes.” <i>10th Annual ACM-SIAM Symposium on Discrete Algorithms</i>,
    Society for Industrial &#38; Applied Mathematics, 1999, pp. 438–47.
  short: M.H. Henzinger, S. Leonardi   , in:, 10th Annual ACM-SIAM Symposium on Discrete
    Algorithms, Society for Industrial &#38; Applied Mathematics, 1999, pp. 438–447.
conference:
  end_date: 1999-01-19
  location: Baltimore, MD, United States
  name: 'SODA: Symposium on Discrete Algorithms'
  start_date: 1999-01-17
date_created: 2022-08-18T12:45:50Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2023-02-17T12:08:26Z
day: '01'
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 438-447
publication: 10th Annual ACM-SIAM Symposium on Discrete Algorithms
publication_identifier:
  isbn:
  - '0898714346'
publication_status: published
publisher: Society for Industrial & Applied Mathematics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Scheduling multicasts on unit-capacity trees and meshes
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '1999'
...
---
_id: '3444'
abstract:
- lang: eng
  text: This study examined intermittent, high-frequency (100-200 Hz) oscillatory
    patterns in the CA1 region of the hippocampus in the absence of theta activity,
    i.e., during and in between sharp wave (SPW) bursts. Pyramidal and interneuronal
    activity was phase-locked not only to large amplitude (&gt;7 SD from baseline)
    oscillatory events, which are present mainly during SPWs, but to smaller amplitude
    (&lt;4 SD) patterns, as well. Large-amplitude events were in the 140-200 Hz, &quot;ripple&quot;
    frequency range. Lower-amplitude events, however, contained slower, 100-130 Hz
    (&quot;slow&quot;) oscillatory patterns. Fast ripple waves reversed just below
    the CA1 pyramidal layer, whereas slow oscillatory potentials reversed in the stratum
    radiatum and/or in the stratum oriens. Parallel CA1-CA3 recordings revealed correlated
    CA3 field and unit activity to the slow CA1 waves but not to fast ripple waves.
    These findings suggest that fast ripples emerge in the CA1 region, whereas slow
    (100-130 Hz) oscillatory patterns are generated in the CA3 region and transferred
    to the CA1 field.
article_processing_charge: No
article_type: original
author:
- first_name: Jozsef L
  full_name: Csicsvari, Jozsef L
  id: 3FA14672-F248-11E8-B48F-1D18A9856A87
  last_name: Csicsvari
  orcid: 0000-0002-5193-4036
- first_name: Hajima
  full_name: Hirase, Hajima
  last_name: Hirase
- first_name: András
  full_name: Czurkó, András
  last_name: Czurkó
- first_name: Akira
  full_name: Mamiya, Akira
  last_name: Mamiya
- first_name: György
  full_name: Buzsáki, György
  last_name: Buzsáki
citation:
  ama: Csicsvari JL, Hirase H, Czurkó A, Mamiya A, Buzsáki G. Fast  network  oscillations 
    in the  hippocampal  CA1 region of the behaving rat. <i>Journal of Neuroscience</i>.
    1999;19(16). doi:<a href="https://doi.org/10.1523/JNEUROSCI.19-16-j0001.1999">10.1523/JNEUROSCI.19-16-j0001.1999</a>
  apa: Csicsvari, J. L., Hirase, H., Czurkó, A., Mamiya, A., &#38; Buzsáki, G. (1999).
    Fast  network  oscillations  in the  hippocampal  CA1 region of the behaving rat.
    <i>Journal of Neuroscience</i>. Society for Neuroscience. <a href="https://doi.org/10.1523/JNEUROSCI.19-16-j0001.1999">https://doi.org/10.1523/JNEUROSCI.19-16-j0001.1999</a>
  chicago: Csicsvari, Jozsef L, Hajima Hirase, András Czurkó, Akira Mamiya, and György
    Buzsáki. “Fast  Network  Oscillations  in the  Hippocampal  CA1 Region of the
    Behaving Rat.” <i>Journal of Neuroscience</i>. Society for Neuroscience, 1999.
    <a href="https://doi.org/10.1523/JNEUROSCI.19-16-j0001.1999">https://doi.org/10.1523/JNEUROSCI.19-16-j0001.1999</a>.
  ieee: J. L. Csicsvari, H. Hirase, A. Czurkó, A. Mamiya, and G. Buzsáki, “Fast  network 
    oscillations  in the  hippocampal  CA1 region of the behaving rat,” <i>Journal
    of Neuroscience</i>, vol. 19, no. 16. Society for Neuroscience, 1999.
  ista: Csicsvari JL, Hirase H, Czurkó A, Mamiya A, Buzsáki G. 1999. Fast  network 
    oscillations  in the  hippocampal  CA1 region of the behaving rat. Journal of
    Neuroscience. 19(16).
  mla: Csicsvari, Jozsef L., et al. “Fast  Network  Oscillations  in the  Hippocampal 
    CA1 Region of the Behaving Rat.” <i>Journal of Neuroscience</i>, vol. 19, no.
    16, Society for Neuroscience, 1999, doi:<a href="https://doi.org/10.1523/JNEUROSCI.19-16-j0001.1999">10.1523/JNEUROSCI.19-16-j0001.1999</a>.
  short: J.L. Csicsvari, H. Hirase, A. Czurkó, A. Mamiya, G. Buzsáki, Journal of Neuroscience
    19 (1999).
date_created: 2018-12-11T12:03:22Z
date_published: 1999-08-15T00:00:00Z
date_updated: 2022-09-07T13:41:18Z
day: '15'
doi: 10.1523/JNEUROSCI.19-16-j0001.1999
extern: '1'
external_id:
  pmid:
  - '10436076'
intvolume: '        19'
issue: '16'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6782850/
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Neuroscience
publication_identifier:
  issn:
  - 0270-6474
publication_status: published
publisher: Society for Neuroscience
publist_id: '2943'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Fast  network  oscillations  in the  hippocampal  CA1 region of the behaving
  rat
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 19
year: '1999'
...
---
_id: '3445'
abstract:
- lang: eng
  text: The medial septal region and the hippocampus are connected reciprocally via
    GABAergic neurons, but the physiological role of this loop is still not well understood.
    In an attempt to reveal the physiological effects of the hippocamposeptal GABAergic
    projection, we cross-correlated hippocampal sharp wave (SPW) ripples or theta
    activity and extracellular units recorded in the medial septum and diagonal band
    of Broca (MSDB) in freely moving rats. The majority of single MSDB cells (60%)
    were significantly suppressed during SPWs. Most cells inhibited during SPW (80%)
    fired rhythmically and phase-locked to the negative peak of the CA1 pyramidal
    layer theta waves. Because both SPW and the negative peak of local theta waves
    correspond to the maximum discharge probability of CA1 pyramidal cells and interneuron
    classes, the findings indicate that the activity of medial septal neurons can
    be negatively (during SPW) or positively (during theta waves) correlated with
    the activity of hippocampal interneurons. We hypothesize that the functional coupling
    between medial septal neurons and hippocampal interneurons varies in a state-dependent
    manner.
acknowledgement: This work was supported by National Institutes of Health Grants NS34994
  and MH54671. We thank Z. Borhegyi, H. Hirase, C. King, and Z. Nadásdy for help and
  support and T. F. Freund for his comments on this manuscript.
article_processing_charge: No
article_type: original
author:
- first_name: George
  full_name: Dragoi, George
  last_name: Dragoi
- first_name: Daniel
  full_name: Carpi, Daniel
  last_name: Carpi
- first_name: Michael
  full_name: Recce, Michael
  last_name: Recce
- first_name: Jozsef L
  full_name: Csicsvari, Jozsef L
  id: 3FA14672-F248-11E8-B48F-1D18A9856A87
  last_name: Csicsvari
  orcid: 0000-0002-5193-4036
- first_name: György
  full_name: Buzsáki, György
  last_name: Buzsáki
citation:
  ama: Dragoi G, Carpi D, Recce M, Csicsvari JL, Buzsáki G. Interactions between hippocampus
    and medial septum during sharp waves and theta oscillation in the behaving rat.
    <i>Journal of Neuroscience</i>. 1999;19(14):6191-6199. doi:<a href="https://doi.org/10.1523/JNEUROSCI.19-14-06191.1999">10.1523/JNEUROSCI.19-14-06191.1999</a>
  apa: Dragoi, G., Carpi, D., Recce, M., Csicsvari, J. L., &#38; Buzsáki, G. (1999).
    Interactions between hippocampus and medial septum during sharp waves and theta
    oscillation in the behaving rat. <i>Journal of Neuroscience</i>. Society for Neuroscience.
    <a href="https://doi.org/10.1523/JNEUROSCI.19-14-06191.1999">https://doi.org/10.1523/JNEUROSCI.19-14-06191.1999</a>
  chicago: Dragoi, George, Daniel Carpi, Michael Recce, Jozsef L Csicsvari, and György
    Buzsáki. “Interactions between Hippocampus and Medial Septum during Sharp Waves
    and Theta Oscillation in the Behaving Rat.” <i>Journal of Neuroscience</i>. Society
    for Neuroscience, 1999. <a href="https://doi.org/10.1523/JNEUROSCI.19-14-06191.1999">https://doi.org/10.1523/JNEUROSCI.19-14-06191.1999</a>.
  ieee: G. Dragoi, D. Carpi, M. Recce, J. L. Csicsvari, and G. Buzsáki, “Interactions
    between hippocampus and medial septum during sharp waves and theta oscillation
    in the behaving rat,” <i>Journal of Neuroscience</i>, vol. 19, no. 14. Society
    for Neuroscience, pp. 6191–6199, 1999.
  ista: Dragoi G, Carpi D, Recce M, Csicsvari JL, Buzsáki G. 1999. Interactions between
    hippocampus and medial septum during sharp waves and theta oscillation in the
    behaving rat. Journal of Neuroscience. 19(14), 6191–6199.
  mla: Dragoi, George, et al. “Interactions between Hippocampus and Medial Septum
    during Sharp Waves and Theta Oscillation in the Behaving Rat.” <i>Journal of Neuroscience</i>,
    vol. 19, no. 14, Society for Neuroscience, 1999, pp. 6191–99, doi:<a href="https://doi.org/10.1523/JNEUROSCI.19-14-06191.1999">10.1523/JNEUROSCI.19-14-06191.1999</a>.
  short: G. Dragoi, D. Carpi, M. Recce, J.L. Csicsvari, G. Buzsáki, Journal of Neuroscience
    19 (1999) 6191–6199.
date_created: 2018-12-11T12:03:22Z
date_published: 1999-07-15T00:00:00Z
date_updated: 2022-09-07T13:37:41Z
day: '15'
doi: 10.1523/JNEUROSCI.19-14-06191.1999
extern: '1'
external_id:
  pmid:
  - '10407055'
intvolume: '        19'
issue: '14'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6783073/
month: '07'
oa: 1
oa_version: Published Version
page: 6191 - 6199
pmid: 1
publication: Journal of Neuroscience
publication_identifier:
  issn:
  - 0270-6474
publication_status: published
publisher: Society for Neuroscience
publist_id: '2942'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interactions between hippocampus and medial septum during sharp waves and theta
  oscillation in the behaving rat
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 19
year: '1999'
...
---
_id: '3456'
abstract:
- lang: eng
  text: L-a-amino-3-hydroxy-5-methyl-4-isoxazolepropionate receptors (AMPARs) and
    N-methyl-D-aspartate receptors (NMDARs) are the two major types of postsynaptic
    glutamate receptors (GluRs) that mediate excitatory synaptic transmission in the
    mammalian central nervous system (CNS). Both AMPARs and NMDARs are multimeric
    proteins, probably tetramers, formed by a variety of molecularly distinct subunits.
    AMPARs can be assembled from four types of subunits, termed GIuR-A, -B, -C, and
    -D (or, in an alternative nomenclature, G1uR1, G1uR2, GluR3, and G1uR4). Additional
    molecular diversity of AMPARs is generated by alternative splicing of the flip-flop
    module and RNA editing at the Q/R and R/G site. NMDARs are heteromers primarily
    assembled from NR1 subunits and NR2A, B, C, or D subunits. Various splice variants
    have been identified for the NR1 subunit, and a new NR3 subunit has been discovered
    recently. Considering all combinatorial possibilities, the molecular diversity
    of glutamate-receptor channels is considerable (HOLLMANN, this volume).
alternative_title:
- Handbook of experimental pharmacology
article_processing_charge: No
author:
- first_name: Hannah
  full_name: Monyer, Hannah
  last_name: Monyer
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Jean
  full_name: Rossier, Jean
  last_name: Rossier
citation:
  ama: 'Monyer H, Jonas PM, Rossier J. Molecular determinants controlling functional
    properties of AMPARs and NMDARs in the mammalian CNS. In: Jonas PM, Monyer H,
    eds. <i>Ionotropic Glutamate Receptors in the CNS</i>. Vol 141. Springer; 1999:309-339.
    doi:<a href="https://doi.org/10.1007/978-3-662-08022-1_9">10.1007/978-3-662-08022-1_9</a>'
  apa: Monyer, H., Jonas, P. M., &#38; Rossier, J. (1999). Molecular determinants
    controlling functional properties of AMPARs and NMDARs in the mammalian CNS. In
    P. M. Jonas &#38; H. Monyer (Eds.), <i>Ionotropic Glutamate Receptors in the CNS</i>
    (Vol. 141, pp. 309–339). Springer. <a href="https://doi.org/10.1007/978-3-662-08022-1_9">https://doi.org/10.1007/978-3-662-08022-1_9</a>
  chicago: Monyer, Hannah, Peter M Jonas, and Jean Rossier. “Molecular Determinants
    Controlling Functional Properties of AMPARs and NMDARs in the Mammalian CNS.”
    In <i>Ionotropic Glutamate Receptors in the CNS</i>, edited by Peter M Jonas and
    Hannah Monyer, 141:309–39. Springer, 1999. <a href="https://doi.org/10.1007/978-3-662-08022-1_9">https://doi.org/10.1007/978-3-662-08022-1_9</a>.
  ieee: H. Monyer, P. M. Jonas, and J. Rossier, “Molecular determinants controlling
    functional properties of AMPARs and NMDARs in the mammalian CNS,” in <i>Ionotropic
    Glutamate Receptors in the CNS</i>, vol. 141, P. M. Jonas and H. Monyer, Eds.
    Springer, 1999, pp. 309–339.
  ista: 'Monyer H, Jonas PM, Rossier J. 1999.Molecular determinants controlling functional
    properties of AMPARs and NMDARs in the mammalian CNS. In: Ionotropic Glutamate
    Receptors in the CNS. Handbook of experimental pharmacology, vol. 141, 309–339.'
  mla: Monyer, Hannah, et al. “Molecular Determinants Controlling Functional Properties
    of AMPARs and NMDARs in the Mammalian CNS.” <i>Ionotropic Glutamate Receptors
    in the CNS</i>, edited by Peter M Jonas and Hannah Monyer, vol. 141, Springer,
    1999, pp. 309–39, doi:<a href="https://doi.org/10.1007/978-3-662-08022-1_9">10.1007/978-3-662-08022-1_9</a>.
  short: H. Monyer, P.M. Jonas, J. Rossier, in:, P.M. Jonas, H. Monyer (Eds.), Ionotropic
    Glutamate Receptors in the CNS, Springer, 1999, pp. 309–339.
date_created: 2018-12-11T12:03:25Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2022-09-07T13:30:23Z
day: '01'
doi: 10.1007/978-3-662-08022-1_9
editor:
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Hannah
  full_name: Monyer, Hannah
  last_name: Monyer
extern: '1'
intvolume: '       141'
language:
- iso: eng
month: '01'
oa_version: None
page: 309 - 339
publication: Ionotropic Glutamate Receptors in the CNS
publication_identifier:
  isbn:
  - '9783642085390'
publication_status: published
publisher: Springer
publist_id: '2931'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Molecular determinants controlling functional properties of AMPARs and NMDARs
  in the mammalian CNS
type: book_chapter
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 141
year: '1999'
...
---
_id: '3457'
abstract:
- lang: eng
  text: Principal neurons and interneurons are the two main classes of cells in cortical
    neuronal networks. Principal neurons (granule cells or pyramidal neurons) have
    transregional axonal projections and release glutamate onto their postsynaptic
    target cells. In contrast, interneurons have local, but often extensive, axonal
    arborizations and use γ-aminobutyric acid (GABA) as a transmitter. Although interneurons
    represent only approximately 10% of the neuronal population, they control the
    electrical activity of the entire network (FREUND and BUZSÁKI 1996). Interneurons
    forming inhibitory synapses on the somata or axon initial segments of their postsynaptic
    target cells are thought to set the threshold of action potential initiation (MILES
    et al. 1996) and can synchronize the collective activities of large principal
    neuron ensembles (COBB et al. 1995). In contrast, interneurons establishing inhibitory
    synapses mainly on dendrites could suppress dendritic Na+ or Ca2+ spikes (BUZSÁKI
    et al. 1996; MILES et al. 1996) and, thus, regulate plasticity at glutamatergic
    synapses in the cortex (DAVIES et al.1991).
alternative_title:
- Handbook of experimental pharmacology
article_processing_charge: No
author:
- first_name: Jörg
  full_name: Geiger, Jörg
  last_name: Geiger
- first_name: Arnd
  full_name: Roth, Arnd
  last_name: Roth
- first_name: Birol
  full_name: Taskin, Birol
  last_name: Taskin
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: 'Geiger J, Roth A, Taskin B, Jonas PM. Glutamate-mediated synaptic excitation
    of cortical interneurons. In: Monyer H, Jonas PM, eds. <i>Ionotropic Glutamate
    Receptors in the CNS</i>. Vol 141. Springer; 1999:363-398. doi:<a href="https://doi.org/10.1007/978-3-662-08022-1_11">10.1007/978-3-662-08022-1_11</a>'
  apa: Geiger, J., Roth, A., Taskin, B., &#38; Jonas, P. M. (1999). Glutamate-mediated
    synaptic excitation of cortical interneurons. In H. Monyer &#38; P. M. Jonas (Eds.),
    <i>Ionotropic Glutamate Receptors in the CNS</i> (Vol. 141, pp. 363–398). Springer.
    <a href="https://doi.org/10.1007/978-3-662-08022-1_11">https://doi.org/10.1007/978-3-662-08022-1_11</a>
  chicago: Geiger, Jörg, Arnd Roth, Birol Taskin, and Peter M Jonas. “Glutamate-Mediated
    Synaptic Excitation of Cortical Interneurons.” In <i>Ionotropic Glutamate Receptors
    in the CNS</i>, edited by Hannah Monyer and Peter M Jonas, 141:363–98. Springer,
    1999. <a href="https://doi.org/10.1007/978-3-662-08022-1_11">https://doi.org/10.1007/978-3-662-08022-1_11</a>.
  ieee: J. Geiger, A. Roth, B. Taskin, and P. M. Jonas, “Glutamate-mediated synaptic
    excitation of cortical interneurons,” in <i>Ionotropic Glutamate Receptors in
    the CNS</i>, vol. 141, H. Monyer and P. M. Jonas, Eds. Springer, 1999, pp. 363–398.
  ista: 'Geiger J, Roth A, Taskin B, Jonas PM. 1999.Glutamate-mediated synaptic excitation
    of cortical interneurons. In: Ionotropic Glutamate Receptors in the CNS. Handbook
    of experimental pharmacology, vol. 141, 363–398.'
  mla: Geiger, Jörg, et al. “Glutamate-Mediated Synaptic Excitation of Cortical Interneurons.”
    <i>Ionotropic Glutamate Receptors in the CNS</i>, edited by Hannah Monyer and
    Peter M Jonas, vol. 141, Springer, 1999, pp. 363–98, doi:<a href="https://doi.org/10.1007/978-3-662-08022-1_11">10.1007/978-3-662-08022-1_11</a>.
  short: J. Geiger, A. Roth, B. Taskin, P.M. Jonas, in:, H. Monyer, P.M. Jonas (Eds.),
    Ionotropic Glutamate Receptors in the CNS, Springer, 1999, pp. 363–398.
date_created: 2018-12-11T12:03:26Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2022-09-07T13:25:46Z
day: '01'
doi: 10.1007/978-3-662-08022-1_11
editor:
- first_name: Hannah
  full_name: Monyer, Hannah
  last_name: Monyer
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
extern: '1'
intvolume: '       141'
language:
- iso: eng
month: '01'
oa_version: None
page: 363 - 398
publication: Ionotropic Glutamate Receptors in the CNS
publication_identifier:
  isbn:
  - '9783642085390'
publication_status: published
publisher: Springer
publist_id: '2930'
quality_controlled: '1'
status: public
title: Glutamate-mediated synaptic excitation of cortical interneurons
type: book_chapter
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 141
year: '1999'
...
