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Institution

State University of New York System

EducationAlbany, New York, United States
About: State University of New York System is a education organization based out in Albany, New York, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 54077 authors who have published 78070 publications receiving 2985160 citations.
Topics: Population, Poison control, RNA, Gene, Receptor


Papers
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Journal ArticleDOI
01 Jun 1999-Ecology
TL;DR: In this article, the authors describe criteria for choosing appropriate metrics and methods for comparing them among studies at three stages of designing a meta-analysis to test hypotheses about variation in interaction intensity: the choice of response variable, how effect size is calculated using the response in two treatments; and whether there is a consistent quantitative effect across all taxa and systems studied or only qualitatively similar effects within each taxon-system combination.
Abstract: Quantitative synthesis across studies requires consistent measures of effect size among studies. In community ecology, these measures of effect size will often be some measure of the strength of interactions between taxa. However, indices of interaction strength vary greatly among both theoretical and empirical studies, and the connection between hypotheses about interaction strength and the metrics that are used to test these hypotheses are often not explicit. We describe criteria for choosing appropriate metrics and methods for comparing them among studies at three stages of designing a meta-analysis to test hypotheses about variation in interaction intensity: (1) the choice of response variable; (2) how effect size is calculated using the response in two treatments; and (3) whether there is a consistent quantitative effect across all taxa and systems studied or only qualitatively similar effects within each taxon–system combination. The consequences of different choices at each of these stages are illu...

459 citations

Journal ArticleDOI
09 Jan 1997-Nature
TL;DR: This approach can detect adaptive and purifying episodes, and localize them to specific lineages during protein evolution, and detect a previously unsuspected adaptive episode on the lineage leading to the common ancestor of the modern hominoid lysozymes.
Abstract: ALTHOUGH the darwinian concept of adaptation was established nearly a century ago, it has been difficult to demonstrate rigorously that the amino-acid differences between homologous proteins from different species have adaptive significance. There are currently two major types of sequence tests for positive darwinian selection on proteins from different species: sequence convergence, and neutral rate violation (reviewed in ref. 1). Lysozymes from the stomachs of cows and langur monkeys, two mammalian species displaying fermentation in the foregut, are an example2,3 of amino-acid sequence convergence among homologous proteins4–6. Here we combine tests of neutral rate violation with reconstruction of ancestral sequences to document an episode of positive selection on the lineage leading to the common ancestor of the foregut-fermenting colobine monkeys. This analysis also detected a previously unsuspected adaptive episode on the lineage leading to the common ancestor of the modern hominoid lysozymes. Both adaptive episodes were followed by episodes of negative selection. Thus this approach can detect adaptive and purifying episodes, and localize them to specific lineages during protein evolution.

459 citations

Journal ArticleDOI
TL;DR: The results suggest that both delay and probability discounting are related to adult cigarette smoking; however, it also was determined that DD was a significantly stronger predictor of smoking than PD.

458 citations

Journal ArticleDOI
TL;DR: The receptor-mediated delivery of folic acid conjugated quantum dots into folate-receptor-positive cell lines such as KB cells is demonstrated and can be potentially useful for deep tissue imaging for future in vivo studies.
Abstract: A novel method for the synthesis of highly monodispersed hydrophillic InP−ZnS nanocrystals and their use as luminescence probes for live cell imaging is reported. Hydrophobic InP−ZnS nanocrystals are prepared by a new method that yields high-quality, luminescent core−shell nanocrystals within 6−8 h of total reaction time. Then by carefully manipulating the surface of these passivated nanocrystals, aqueous dispersions of folate-conjugated nanocrystals (folate-QDs) with high photostability are prepared. By use of confocal microscopy, we demonstrate the receptor-mediated delivery of folic acid conjugated quantum dots into folate-receptor-positive cell lines such as KB cells. These folate-QDs tend to accumulate in multivescicular bodies of KB cells after 6 h of incubation. Receptor-mediated delivery was confirmed by comparison with the uptake of these particles in folate-receptor-negative cell lines such as A549. Efficient two-photon excitation of these particles and two-photon imaging using these particles a...

458 citations

Journal ArticleDOI
TL;DR: In this article, learning trajectories in mathematics education are discussed. But the authors focus on the learning trajectory of mathematics education, and do not consider the learning of algebraic geometry.
Abstract: (2004). Learning Trajectories in Mathematics Education. Mathematical Thinking and Learning: Vol. 6, No. 2, pp. 81-89.

457 citations


Authors

Showing all 54162 results

NameH-indexPapersCitations
Meir J. Stampfer2771414283776
Bert Vogelstein247757332094
Zhong Lin Wang2452529259003
Peter Libby211932182724
Robert M. Califf1961561167961
Stephen V. Faraone1881427140298
David L. Kaplan1771944146082
David Baker1731226109377
Nora D. Volkow165958107463
David R. Holmes1611624114187
Richard J. Davidson15660291414
Ronald G. Crystal15599086680
Jovan Milosevic1521433106802
James J. Collins15166989476
Mark A. Rubin14569995640
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202325
2022168
20212,825
20202,891
20192,528
20182,456