Results 51 to 60 of about 10,682,507 (345)

Elmer\u27s Evolution [PDF]

open access: yes, 2014
Spring is here! Can\u27t you hear the rumble of skates as the children zip by the house in their youthful glee? Can\u27t you hear the mingled chatter of the spring birds?
McLaughlin, Maryann
core   +1 more source

Supernova progenitors and iron density evolution from SN rate evolution measurements

open access: yes, 2008
Using an extensive compilation of literature supernova rate data we study to which extent its evolution constrains the star formation history, the distribution of the type Ia supernova (SNIa) progenitor's lifetime, the mass range of core-collapse ...
Blanc, Guillaume, Greggio, Laura
core   +3 more sources

Evolution Kernels for Light-Ray Operators: Twist 2 and Twist 3 Contributions [PDF]

open access: yes, 1997
The general evolution kernels of the twist 2 light-ray operators for unpolarized and polarized deep inelastic scattering are calculated in ${\cal O}(\alpha_s)$.
Blümlein, J., Geyer, B., Robaschik, D.
core   +2 more sources

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Enzyme-assisted high throughput sequencing of an expanded genetic alphabet at single base resolution

open access: yesNature Communications
With just four building blocks, low sequence information density, few functional groups, poor control over folding, and difficulties in forming compact folds, natural DNA and RNA have been disappointing platforms from which to evolve receptors, ligands ...
Bang Wang   +8 more
doaj   +1 more source

Sex-biased gene expression is repeatedly masculinized in asexual females

open access: yesNature Communications, 2019
Evolution of optimal gene expression in females is expected to be constrained by sexually-antagonistic selection on males. Here, Parker and colleagues show that gene expression has in fact become masculinized in female stick insects across five ...
Darren J. Parker   +5 more
doaj   +1 more source

Creationism and evolution [PDF]

open access: yes, 2009
In Tower of Babel, Robert Pennock wrote that “defenders of evolution would help their case immeasurably if they would reassure their audience that morality, purpose, and meaning are not lost by accepting the truth of evolution.” We first consider the ...
Blancke, Stefaan, Quintelier, Katinka
core   +1 more source

Nextstrain: real-time tracking of pathogen evolution

open access: yesbioRxiv, 2017
Summary Understanding the spread and evolution of pathogens is important for effective public health measures and surveillance. Nextstrain consists of a database of viral genomes, a bioinformatics pipeline for phylodynamics analysis, and an interactive ...
J. Hadfield   +8 more
semanticscholar   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

The relationship between diet, plasma glucose, and cancer prevalence across vertebrates

open access: yesNature Communications
Birds have higher plasma glucose concentrations but lower cancer prevalence than other vertebrates. However, this inverse relationship between glucose and cancer may not hold within vertebrate groups.
Stefania E. Kapsetaki   +8 more
doaj   +1 more source

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