Results 41 to 50 of about 3,687,635 (343)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

On the oxide formation on stainless steels AISI 304 and incoloy 800H investigated with XPS [PDF]

open access: yes, 1987
The influence of cold work on the initially formed oxide layer on the stainless steels AISI 304 and Incology 800H has been studied by XPS. Oxidations were performed at pressures of 10-6-10-4 Pa and temperatures of 300–800 K.
Gellings, P.J.   +3 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

A workplace intervention to reduce alcohol and drug consumption: a nonrandomized single-group study

open access: yesBMC Public Health, 2018
Background The consumption of alcohol and other drugs causes social and health problems in industrialized societies. Furthermore, alcohol and drug consumption in the workplace is associated with work accidents, absenteeism and low productivity.
Montse Gómez-Recasens   +4 more
doaj   +1 more source

Oxidation of Columbium-Chromium Alloys at Elevated Temperatures [PDF]

open access: yes, 1957
Screening studies of the oxidation characteristics of binary alloys of columbium (Ref. 1) showed that chromium was an additive element worthy of intensive study.
Barrett, C. A., Clauss, F. J.
core   +1 more source

Reactive intermediates revealed in secondary organic aerosol formation from isoprene [PDF]

open access: yes, 2009
Isoprene is a significant source of atmospheric organic aerosol; however, the oxidation pathways that lead to secondary organic aerosol (SOA) have remained elusive.
A. J. Kwan   +24 more
core   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Health status, lifestyle and quality of life in older adults of rural and urban areas of Tarragona province (Catalonia, Spain): a cross-sectional descriptive study

open access: yesBMC Public Health
Background People over 60 years old represent 26.5% of the world’s population, and enhancing health emerges as an opportunity. Thus, this study aims to describe and compare the health status (sarcopenia parameters), lifestyles, quality of life, and ...
C. Jiménez-Ten Hoevel   +10 more
doaj   +1 more source

Study Of Oxidation Processes In Duck Meat With Application Of Rosemary And Grape Seed Extracts [PDF]

open access: yes, 2017
The substantiation of the expedience of using antioxidants of a natural origin to decelerate oxidation processes in different meat products is an urgent direction of these studies.
Bozhko, N. (Nataliia)   +4 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

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