Results 21 to 30 of about 64,785 (232)

The influence of biological rhythms on host–parasite interactions [PDF]

open access: yes, 2015
Biological rhythms, from circadian control of cellular processes to annual cycles in life history, are a main structural element of biology. Biological rhythms are considered adaptive because they enable organisms to partition activities to cope with ...
Helm, Barbara, Martinez-Bakker, Micaela
core   +1 more source

A Biological Clock in Drosophila

open access: yesCold Spring Harbor Symposia on Quantitative Biology, 1985
The per locus plays a central role in the organization and function of the Drosophila biological clock. The gene has been mapped to a 7-kb DNA segment by physically locating the breakpoints of several chromosomal rearrangements that disrupt per function. This DNA contains a single transcription unit which produces a 4.5-kb poly(A)+ RNA.
F.R. Jackson   +3 more
openaire   +3 more sources

Circadian Gating of the Cell Cycle Revealed in Single Cyanobacterial Cells [PDF]

open access: yes, 2009
Although major progress has been made in uncovering the machinery that underlies individual biological clocks, much less is known about how multiple clocks coordinate their oscillations. We simultaneously tracked cell division events and circadian phases
Dong, Guogang   +4 more
core   +1 more source

A Systematic Review of Phenotypic and Epigenetic Clocks Used for Aging and Mortality Quantification in Humans [PDF]

open access: yes
Aging is the leading driver of disease in humans and has profound impacts on mortality. Biological clocks are used to measure the aging process in the hopes of identifying possible interventions.
Datta, Anirban   +3 more
core   +2 more sources

Circadian rhythms and hormonal homeostasis: Pathophysiological implications [PDF]

open access: yes, 2017
Over recent years, a deeper comprehension of the molecular mechanisms that control biological clocks and circadian rhythms has been achieved. In fact, many studies have contributed to unravelling the importance of the molecular clock for the regulation ...
Bruscalupi, Giovannella, Gnocchi, Davide
core   +2 more sources

MicroRNA-433 Dampens Glucocorticoid Receptor Signaling, Impacting Circadian Rhythm and Osteoblastic Gene Expression [PDF]

open access: yes, 2016
FUNDING This work was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health [AR44877]; the National Institutes for Dental and Craniofacial Research [5T90DE21989]; a Grant-in-Aid award ...
Delany, Anne M   +4 more
core   +1 more source

Circadian Rhythms of Crawling and Swimming in the Nudibranch Mollusc Melibe leonina [PDF]

open access: yes, 2014
Daily rhythms of activity driven by circadian clocks are expressed by many organisms, including molluscs. We initiated this study, with the nudibranch Melibe leonina, with four goals in mind: (1) determine which behaviors are expressed with a daily ...
Kirouac, Lauren E.   +3 more
core   +2 more sources

Population and species neighbor identity impact trait–trait relationships and plant performance

open access: yesPopulation Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx   +2 more
wiley   +1 more source

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

open access: yesPopulation Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji   +9 more
wiley   +1 more source

Formal Systems Architectures for Biology [PDF]

open access: yes, 2011
When the word "systems" is used in systems biology, it invokes a variety of assumptions about what defines the subject under investigation, which in turn can lead to divergent research outcomes.
Bradly Alicea
core   +2 more sources

Home - About - Disclaimer - Privacy