Results 101 to 110 of about 10,894,224 (257)

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Estimation of actual evapotranspiration of Mediterranean perennial crops by means of remote-sensing based surface energy balance models [PDF]

open access: yesHydrology and Earth System Sciences, 2009
Actual evapotranspiration from typical Mediterranean crops has been assessed in a Sicilian study area by using surface energy balance (SEB) and soil-water balance models.
G. Rallo   +9 more
doaj  

Bioactivity in Whey Proteins Influencing Energy Balance [PDF]

open access: yes, 2012
Peer-reviewedObesity develops due to energy (food) intake exceeding energy expenditure. Nutrients that reduce the positive energy balance are thus being considered as therapies to combat obesity.
Nilaweera, Kanishka   +4 more
core   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

A modified Bowen ratio method to determine sensible and latent heat fluxes

open access: yesMeteorologische Zeitschrift, 2001
The sensible heat flux (H) and the latent heat flux (λE) were measured above a grassland during June, 1997 (LINEX-97/1 Experiment), using the eddy covariance method (EC) and the Bowen ratio/Energy balance method (BREB).
Heping Liu, Thomas Foken
doaj   +1 more source

Development of High Performance Computing Tools for Estimation of High-Resolution Surface Energy Balance Products Using sUAS Information. [PDF]

open access: yesProc SPIE Int Soc Opt Eng, 2021
Nassar A   +18 more
europepmc   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Modeling Sugar Cane Evapotranspiration Using UAV Thermal and Multispectral Images in Northeast Brazil

open access: yesAgriEngineering
Understanding crop water use is essential for improving agricultural water management and ensuring sustainable food production, especially in regions with limited water resources.
Marcos Elias de Oliveira   +8 more
doaj   +1 more source

Energy balance and cancers [PDF]

open access: yes, 1999
Energy balance results from the exact equilibrium between caloric intake and caloric expenditure. A caloric intake larger than caloric expenditure results in overweight, even obesity, but other determinants, like hormonal dysfunction and/or genetic ...
Gerber, Mariette, Corpet, Denis E.
core  

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