Results 61 to 70 of about 245,531 (271)

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Robust permanence for ecological equations with internal and external feedbacks. [PDF]

, 2018
Species experience both internal feedbacks with endogenous factors such as trait evolution and external feedbacks with exogenous factors such as weather. These feedbacks can play an important role in determining whether populations persist or communities
Patel, Swati, Schreiber, Sebastian J
core  

Coupled human and natural system dynamics as key to the sustainability of Lake Victoria's ecosystem services

Ecology and Society, 2014
East Africa's Lake Victoria provides resources and services to millions of people on the lake's shores and abroad. In particular, the lake's fisheries are an important source of protein, employment, and international economic connections for the whole ...
Andrea S. Downing, Egbert H. van Nes, John S. Balirwa, Joost Beuving, P.O.J. Bwathondi, Lauren J. Chapman, Ilse J. M. Cornelissen, Iain G. Cowx, Kees P. C. Goudswaard, Robert E. Hecky, Jan H. Janse, Annette B. G. Janssen, Les Kaufman, Mary A. Kishe-Machumu, Jeppe Kolding, Willem Ligtvoet, Dismas Mbabazi, Modesta Medard, Oliva C. Mkumbo, Enock Mlaponi, Antony T. Munyaho, Leopold A. J. Nagelkerke, Richard Ogutu-Ohwayo, William O. Ojwang, Happy K. Peter, Daniel E. Schindler, Ole Seehausen, Diana Sharpe, Greg M. Silsbe, Lewis Sitoki, Rhoda Tumwebaze, Denis Tweddle, Karen E. van de Wolfshaar, Han van Dijk, Ellen van Donk, Jacco C. van Rijssel, Paul A. M. van Zwieten, Jan Wanink, F. Witte, Wolf M. Mooij   +39 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Ecosystems as climate controllers – biotic feedbacks (a review) [PDF]

, 2008
There is good evidence that higher global temperature will promote a rise of green house gas levels, implying a positive feedback which will increase the effect of the anthropogenic emissions on global temperatures.
Drégelyi-Kiss, G., Drégelyi-Kiss, Á., Hufnagel, Levente   +2 more
core  

Feedbacks from the metabolic network to the genetic network reveal regulatory modules in E. coli and B. subtilis

, 2018
The genetic regulatory network (GRN) plays a key role in controlling the response of the cell to changes in the environment. Although the structure of GRNs has been the subject of many studies, their large scale structure in the light of feedbacks from ...
Jain, Sanjay, Kumar, Santhust, Mahajan, Saurabh   +2 more
core   +2 more sources

Methane Emissions in a Chemistry‐Climate Model: Feedbacks and Climate Response

Journal of Advances in Modeling Earth Systems, 2020
Understanding the past, present, and future evolution of methane remains a grand challenge. Here we have used a hierarchy of models, ranging from simple box models to a chemistry‐climate model (CCM), UM‐UKCA, to assess the contemporary and possible ...
I. Heimann, P. T. Griffiths, N. J. Warwick, N. L. Abraham, A. T. Archibald, J. A. Pyle   +5 more
doaj   +1 more source

Nutrient conditions determine the strength of herbivore‐mediated stabilizing feedbacks in barrens

Ecology and Evolution, 2023
Abiotic environmental conditions can significantly influence the way species interact. In particular, plant–herbivore interactions can be substantially dependent on temperature and nutrients. The overall product of these relationships is critical for the
Laia Illa‐López, Àlex Aubach‐Masip, Teresa Alcoverro, Giulia Ceccherelli, Luigi Piazzi, Periklis Kleitou, Jorge Santamaría, Jana Verdura, Neus Sanmartí, Elvira Mayol, Xavi Buñuel, Mario Minguito‐Frutos, Fabio Bulleri, Jordi Boada   +13 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

A proposal for climate stability on H2-greenhouse planets

, 2015
A terrestrial planet in an orbit far outside of the standard habitable zone could maintain surface liquid water as a result of H2-H2 collision-induced absorption by a thick H2 atmosphere.
Abbot, Dorian S.
core   +1 more source