Results 41 to 50 of about 12,698,071 (391)

Mathematical model for studying genetic variation in terms of restriction endonucleases.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1979
A mathematical model for the evolutionary change of restriction sites in mitochondrial DNA is developed. Formulas based on this model are presented for estimating the number of nucleotide substitutions between two populations or species.
M. Nei, W. -. Li
semanticscholar   +1 more source

Multifunctions of bounded variation [PDF]

open access: yes, 2015
Consider control systems described by a differential equation with a control term or, more generally, by a differential inclusion with velocity set F(t,x).
Vinter, RB
core   +1 more source

Increasing eutrophication driven by the increase of phosphate discharge in a subtropical bay in the past 30 years

open access: yesFrontiers in Marine Science, 2023
Although great efforts have been made to decrease nutrient (notably nitrogen and phosphorus) loads and lighten related environmental damages, coastal eutrophication remains a persistent environmental crisis.
Guirong He   +12 more
doaj   +1 more source

Variational Methods [PDF]

open access: yes, 2015
This contribution presents derivative-based methods for local sensitivity analysis, called Variational Sensitivity Analysis (VSA). If one defines an output called the response function, its sensitivity to inputs variations around a nominal value can be studied using derivative (gradient) information.
Nodet, Maelle, Vidard, Arthur
openaire   +5 more sources

Evaluación crítica y meta-análisis de estudios de variación biológica para albúmina glicosilada, glucosa y HbA1c

open access: yesAdvances in Laboratory Medicine, 2020
A lo largo de los años se han publicado numerosos artículos sobre variación biológica (VB) de diferente calidad. Los objetivos de este trabajo fueron realizar una revisión sistemática y una evaluación crítica de los estudios de VB para albúmina ...
Ricós Carmen   +15 more
doaj   +1 more source

Differential expression analysis of multifactor RNA-Seq experiments with respect to biological variation

open access: yesNucleic Acids Research, 2012
A flexible statistical framework is developed for the analysis of read counts from RNA-Seq gene expression studies. It provides the ability to analyse complex experiments involving multiple treatment conditions and blocking variables while still taking ...
Davis J. McCarthy   +2 more
semanticscholar   +1 more source

The sva package for removing batch effects and other unwanted variation in high-throughput experiments

open access: yesBioinform., 2012
Heterogeneity and latent variables are now widely recognized as major sources of bias and variability in high-throughput experiments. The most well-known source of latent variation in genomic experiments are batch effects-when samples are processed on ...
J. Leek   +4 more
semanticscholar   +1 more source

dbSNP: the NCBI database of genetic variation

open access: yesNucleic Acids Res., 2001
In response to a need for a general catalog of genome variation to address the large-scale sampling designs required by association studies, gene mapping and evolutionary biology, the National Center for Biotechnology Information (NCBI) has established ...
S. Sherry   +6 more
semanticscholar   +1 more source

Variations on a theme [PDF]

open access: yesCanadian Medical Association Journal, 2021
The facility was far uptown. We all dozed off during the long ride, and by the time the train lurched into the station, we were groggy. Though we were not native New Yorkers, three years in the city was enough to develop that uncanny ability to emerge from sleep just before missing your stop ...
openaire   +3 more sources

Typing Context-Dependent Behavioural Variation [PDF]

open access: yes, 2012
Context Oriented Programming (COP) concerns the ability of programs to adapt to changes in their running environment. A number of programming languages endowed with COP constructs and features have been developed. However, some foundational issues remain
Degano, Pierpaolo   +3 more
core   +3 more sources

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