Results 131 to 140 of about 29,478,974 (394)

Regulation in Biological Systems

open access: yes, 2013
Any processes which occur in thermodynamically open systems must be automatically regulated if they are to maintain a steady state. Note that there is an important difference between a steady state and a state of equilibrium, since in the latter case no spontaneity is possible.
Paweł Spólnik   +2 more
openaire   +2 more sources

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

open access: yesFEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää   +2 more
wiley   +1 more source

Electron Spin Relaxations in Biological [2Fe-2S] Cluster System

open access: yes, 2015
The phase coherence relaxation times as long as $T_2\sim830-1030\pm20$ ns were measured for the [2Fe-2S] cluster in the intrinsic protein environment. This relaxation corresponds to a relatively long lasting coherence of the low-spin $S=1/2$ state.
Baldansuren, Amgalanbaatar
core  

TRAF2 binds to TIFA via a novel motif and contributes to its autophagic degradation

open access: yesFEBS Letters, EarlyView.
TRAF family members couple receptor signalling complexes to downstream outputs, but how they interact with these complexes is not always clear. Here, we show that during ADP‐heptose signalling, TRAF2 binding to TIFA requires two short sequence motifs in the C‐terminal tail of TIFA, which are distinct from the TRAF6 binding motif.
Tom Snelling   +4 more
wiley   +1 more source

ECO-BIOLOGICAL SYSTEM MODELING

open access: yesСистемный анализ и прикладная информатика, 2016
The methodology for computer modeling of complex eco-biological models is presented in this paper. It is based on system approach of J. Forrester. Developed methodology is universal for complex ecological and biological systems.
T. I. Burak   +3 more
doaj   +1 more source

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

open access: yesFEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu   +17 more
wiley   +1 more source

The nitrogen cycle in biological systems [PDF]

open access: green, 1940
Walter Reginald Wooldridge   +1 more
openalex   +1 more source

Photosensitization in Biological Systems [PDF]

open access: yes, 1977
Protoplasm, in general, is relatively insensitive to direct effects of visible and near ultraviolet light since most molecules of biological importance do not absorb appreciably in this wavelength range. However, in the presence of an appropriate photosensitizer, cells, organisms and many kinds of biomolecules are damaged and destroyed by light.
openaire   +2 more sources

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