Results 31 to 40 of about 677,160 (277)

Coexistence and relative abundance in annual plant assemblages: The roles of competition and colonization [PDF]

open access: yes, 2002
Although an interspecific trade-off between competitive and colonizing ability can permit multispecies coexistence, whether this mechanism controls the structure of natural systems remains unresolved.
Levine, J.M., Rees, M.
core  

First order magnetic transition in CeFe$_2$ alloys: Phase-coexistence and metastability

open access: yes, 2003
First order ferromagnetic (FM) to antiferromagnetic (AFM) phase transition in doped-CeFe$_2$ alloys is studied with micro-Hall probe technique. Clear visual evidence of magnetic phase-coexistence on micrometer scales and the evolution of this phase ...
A. D. Caplin   +14 more
core   +1 more source

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

Eliciting community‐preferred policy alternatives for achieving workable coexistence in a human‐dominated landscape: Insights from Chitwan National Park, Nepal

open access: yesConservation Science and Practice, 2023
Human‐wildlife conflict is a global issue that poses a major threat to biodiversity conservation and sustainable development. Wildlife adapted to human‐modified landscapes in developing countries can threaten the safety and livelihood of local ...
Arockia E J Ferdin   +5 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS 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

Fair Coexistence of Scheduled and Random Access Wireless Networks: Unlicensed LTE/WiFi [PDF]

open access: yes, 2016
We study the fair coexistence of scheduled and random access transmitters sharing the same frequency channel. Interest in coexistence is topical due to the need for emerging unlicensed LTE technologies to coexist fairly with WiFi.
Cano, Cristina   +3 more
core   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Coexistence of different vacua in the effective quantum field theory and Multiple Point Principle

open access: yes, 2003
According to the Multiple Point Principle our Universe is on the coexistence curve of two or more phases of the quantum vacuum. The coexistence of different quantum vacua can be regulated by the exchange of the global fermionic charges between the vacua,
A. A. Abrikosov   +8 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Acknowledging ecological debt: towards just, humane and sustainable food systems in Africa

open access: yesFrontiers in Animal Science
This review interrogates the historical and ongoing consequences of the Global North’s industrialization trajectory on the Global South, including the industrial agriculture systems subsequently exported to the Global South.
Mwenda Mbaka, Janice H. Cox
doaj   +1 more source

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