Results 61 to 70 of about 59,690 (299)

The Use of Integrated Crop–Livestock Systems as a Strategy to Improve Soil Organic Matter in the Brazilian Cerrado

Agronomy
This study aimed to analyze the carbon (C) stock and stabilization of soil organic matter in particulate- and mineral-associated fractions across different land use systems after 32 years of experimentation in the Brazilian Cerrado.
Stallone Soares, Wesley Souza, Bruno Homem, Israel Ramalho, João Borré, Marcos Pereira, Érika Pinheiro, Robelio Marchao, Bruno Alves, Robert Boddey, Segundo Urquiaga   +10 more
doaj   +1 more source

Bioactivity-Guided Fractionation of Physical Fatigue-Attenuating Components from Rubus parvifolius L.

Molecules, 2013
Alleviation of fatigue has been emerging as a serious issue that requires urgent attention. Health professionals and sports physiologists have been looking for active natural products and synthetic compounds to overcome fatigue in humans.
Peiyuan Xia, Yao Liu, Xiaogang Hu, Fengjun Sun, Mingchun Huang, Qing Dai, Ming Tang, Yongqing Cai, Xianfeng Wang, Jianhong Chen   +9 more
doaj   +1 more source

Paradigm shift in radiation treatment planning over multiple treatment modalities

Journal of Medical Physics, 2021
The inverse planning simulated annealing optimization engine was used to develop a new method of incorporating biological parameters into radiation treatment planning.
Benjamin Insley, I-Chow Hsu, J Adam Martin Cunha   +2 more
doaj   +1 more source

Geometric and Physical Interpretation of Fractional Integration and Fractional Differentiation

, 2001
18 pages, 7 figures, 1 ...
openaire   +3 more sources

Chemical and physical properties of fractionated chromatin. [PDF]

Proceedings of the National Academy of Sciences, 1975
Sonicated chicken reticulocyte chromatin was fractionated into transcriptionally active and transcriptionally repressed components. The active fraction is 8% of the whole chromatin but contains 70% of the newly synthesized chromosomal RNA. This RNA has five times as many hemoglobin RNA sequences as does the RNA in the repressed fraction.
E M, Berkowitz, P, Doty
openaire   +2 more sources

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Synergistic Promotion of Particulate and Mineral-Associated Organic Carbon Within Soil Aggregates After 10 Years of Organic Fertilization in Wheat-Maize Systems

Land
How different fertilization practices modify soil organic carbon (SOC) sequestration is still unclear. Our study aimed to evaluate the changes in SOC stocks and their physical fractions after 10 years of organic and inorganic fertilization.
Jing Li, Huijun Wu, Xiaojun Song, Shengping Li, Xueping Wu, Ya Han, Zhiping Liu, Na Yang, Ke Wang, Zhiguo Yang, Jiancheng Zhang   +10 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Diel variations in the carbon isotope composition of respired CO(2) and associated carbon sources: a review of dynamics and mechanisms [PDF]

, 2011
Werner C, Gessler A. Diel variations in the carbon isotope composition of respired CO(2) and associated carbon sources: a review of dynamics and mechanisms. Biogeosciences.
Werner, Christiane ; https://orcid.org/, Geßler, Arthur, C. Werner, Gessler, A., A. Gessler, Werner, Christiane   +5 more
core   +2 more sources