Results 21 to 30 of about 7,284,216 (310)

On the variation of the initial mass function [PDF]

open access: yes, 2000
A universal initial mass function (IMF) is not intuitive, but so far no convincing evidence for a variable IMF exists. The detection of systematic variations of the IMF with star-forming conditions would be the Rosetta Stone for star formation. In
P. Kroupa
semanticscholar   +1 more source

Difference-in-differences with variation in treatment timing

open access: yesJournal of Econometrics, 2018
The canonical difference-in-differences (DD) estimator contains two time periods, ”pre” and ”post”, and two groups, ”treatment” and ”control”. Most DD applications, however, exploit variation across groups of units that receive treatment at different ...
Andrew Goodman-Bacon
semanticscholar   +1 more source

Three Variations on Variational Autoencoders

open access: yesCoRR, 2022
21 pages. This version, v2, has added an explicit evaluation of our VAE A variational encoder.
openaire   +2 more sources

Analysis of protein-coding genetic variation in 60,706 humans

open access: yesNature, 2015
Large-scale reference data sets of human genetic variation are critical for the medical and functional interpretation of DNA sequence changes. Here we describe the aggregation and analysis of high-quality exome (protein-coding region) DNA sequence data ...
J. Zou
semanticscholar   +1 more source

Contrasting the Impacts of Intraseasonal Oscillations on Yangtze Precipitation during the Summer of 1998 and 2016

open access: yesAtmosphere, 2023
In 1998 and 2016, boreal summer intraseasonal oscillation (BSISO) could reach the middle-lower reaches of the Yangtze River basin (YRB), leading to extreme precipitation.
Mimi Tao   +4 more
doaj   +1 more source

Investigating Variation in Replicability: A “Many Labs” Replication Project

open access: yes, 2022
Although replication is a central tenet of science, direct replications are rare in psychology. This research tested variation in the replicability of thirteen classic and contemporary effects across 36 independent samples totaling 6,344 participants. In
R. A. Klein   +50 more
semanticscholar   +1 more source

Network-assisted analysis of GWAS data identifies a functionally-relevant gene module for childhood-onset asthma

open access: yesScientific Reports, 2017
The number of genetic factors associated with asthma remains limited. To identify new genes with an undetected individual effect but collectively influencing asthma risk, we conducted a network-assisted analysis that integrates outcomes of genome-wide ...
Y. Liu   +11 more
doaj   +1 more source

GSVA: gene set variation analysis for microarray and RNA-Seq data

open access: yesBMC Bioinformatics, 2013
Gene set enrichment (GSE) analysis is a popular framework for condensing information from gene expression profiles into a pathway or signature summary.
Sonja Hänzelmann   +2 more
semanticscholar   +1 more source

A framework for variation discovery and genotyping using next-generation DNA sequencing data

open access: yesNature Genetics, 2011
Recent advances in sequencing technology make it possible to comprehensively catalog genetic variation in population samples, creating a foundation for understanding human disease, ancestry and evolution.
M. DePristo   +17 more
semanticscholar   +1 more source

Somatic Variation [PDF]

open access: yesScience, 1919
n ...
Cole, L. J., Megeath, J.
openaire   +2 more sources

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