Results 61 to 70 of about 2,869,951 (334)

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Landscape analysis of the Kenyan policy on the treatment and prevention of diarrheal disease among under-5 children

BMJ Open
Objective Diarrhoea remains a leading cause of morbidity and death among under-5 children in Kenya, despite multipronged policy and programme initiatives to increase access to treatment. This study interrogates the comprehensiveness and adequacy of Kenya’
Blessing Mberu, Kelly K Baker, Sheillah Simiyu, Daniel Sewell, Fanta D Gutema, Innocent K Tumwebaze, Phylis J Busienei   +6 more
doaj   +1 more source

Analysis of Population Dynamics of Terrorist Cells [PDF]

, 2014
Applied mathematics connects many different fields of science. This research focuses on the population dynamics of terrorist organizations, namely Al Qaeda, by creating a mathematical model, while still considering social science fields, such as ...
Dorman, Amanda
core   +1 more source

Two-Population Dynamics in a Growing Network Model

, 2011
We introduce a growing network evolution model with nodal attributes. The model describes the interactions between potentially violent V and non-violent N agents who have different affinities in establishing connections within their own population versus
Albert, Barabasi, Boccaletti, Boccaletti, Boccara, Buldyrev, Cartwright, Dorogovtsev, Ivan Iordanov, Kristinka Ivanova, Newman, Newman, Newman, Sageman, Sageman, Szabo, Szell, Toivonen, Toivonen, Vazquez, Watts, Xu   +21 more
core   +1 more source

Coevolutionary Dynamics: From Finite to Infinite Populations [PDF]

, 2005
Traditionally, frequency dependent evolutionary dynamics is described by deterministic replicator dynamics assuming implicitly infinite population sizes.
Arne Traulsen, Christoph Hauert, H. Gintis, H. G. Schuster, J. Hofbauer, J. Maynard Smith, J. Weibull, Jens Christian Claussen, N. G. van Kampen, P. A. P. Moran, R. Axelrod, R. Dawkins, R. A. Fisher, S. Karlin, S. Wright   +14 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Population, sexual and reproductive health, rights and sustainable development: forging a common agenda. [PDF]

, 2010
This article suggests that sexual and reproductive health and rights activists seeking to influence the post-2015 international development paradigm must work with sustainable development advocates concerned with a range of issues, including climate ...
Campbell, D. M., Carter, P. E., Collins-Emerson, J. M., French, N. P., Hathaway, S., Marshall, J., Midwinter, A. C., Mullner, P., Pirie, R., Shadbolt, T., Spencer, Simon E. F., Wilson, D. J.   +11 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Contact Toxicity, Electrophysiology, Anti-Mating, and Repellent Effects of Piper guineense Against Spodoptera frugiperda (Lepidoptera: Noctuidae)

Insects
The fall armyworm, Spodoptera frugiperda, is a long-distance migratory pest, which invaded the African continent in 2016, causing enormous losses to agricultural crops, especially maize.
Mobolade D. Akinbuluma, Jacques A. Deere, Peter Roessingh, Astrid T. Groot   +3 more
doaj   +1 more source