Results 81 to 90 of about 373,456 (271)

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS 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, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Core-collapse supernovae ages and metallicities from emission-line diagnostics of nearby stellar populations

, 2018
Massive stars are the main objects that illuminate H II regions and they evolve quickly to end their lives in core-collapse supernovae (CCSNe). Thus it is important to investigate the association between CCSNe and H II regions.
Eldridge, J. J., Galbany, L., Stanway, Elizabeth R., Xiao, Lin   +3 more
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Type Ia Supernovae from First-generation Stars

The Astrophysical Journal
Type Ia supernovae (SNe Ia) discovered at redshift z ≲ 2.5 are presumed to be produced from Population I/II stars. In this work, we investigate the production of SNe Ia from Population III binaries in the cosmological framework.
Zhenwei Li, Lifan Wang, Zhanwen Han, Xuefei Chen   +3 more
doaj   +1 more source

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

FEBS 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, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Sloan Digital Sky Survey IV MaStar: Quantification and Abatement of Interstellar Absorption in the Largest Empirical Stellar Spectral Library

The Astrophysical Journal
We assess the impact of Ca ii λ λ 3934, 3969 and Na i λ λ 5891, 5897 absorption arising in the interstellar medium (ISM) on the Sloan Digital Sky Survey-IV MaNGA Stellar Library (MaStar) and produce corrected spectroscopy for 80% of the 24,162-star ...
Kate H. R. Rubin, Kyle B. Westfall, Claudia Maraston, Daniel Thomas, Renbin Yan, J. Christopher Howk, Erick Aguirre, Kaelee S. Parker, David R. Law   +8 more
doaj   +1 more source

Interstellar Reddening Effect on the Age Dating of Population II Stars

Galaxies, 2017
The age measurement of the stellar halo component of the Galaxy is based mainly on the comparison of the main sequence turn-off luminosity of the globular cluster (GC) stars with theoretical isochrones.
Sergio Ortolani, Santi Cassisi, Maurizio Salaris   +2 more
doaj   +1 more source

The effect of massive binaries on stellar populations and supernova progenitors

, 2007
We compare our latest single and binary stellar model results from the Cambridge STARS code to several sets of observations. We examine four stellar population ratios, the number of blue to red supergiants, the number of Wolf-Rayet stars to O supergiants,
Belczynski, Brandt, Cameron, Cantiello, Cappellaro, Cappellaro, Chiosi, Christopher A. Tout, Crowther, Crowther, de Donder, de Donder, de Jager, Deupree, Dray, Dray, Eggenberger, Eggleton, Eggleton, Eldridge, Eldridge, Eldridge, Ferguson, Hansen, Heger, Heger, Heger, Heger, Hirschi, Hurley, Hurley, Izzard, Izzard, Izzard, John J. Eldridge, Kotak, Kroupa, Kudritzki, Langer, Livio, Maeder, Maeder, Massey, Massey, Meynet, Meynet, Meynet, Meynet, Meynet, Nugis, Paczynski, Pastorello, Petrovic, Petrovic, Podsiadlowski, Podsiadlowski, Podsiadlowski, Pols, Popov, Prantzos, Robert G. Izzard, Sills, Smartt, Smartt, Smith, Turatto, Van Dyk, Vanbeveren, Vanbeveren, Vink, Vink, Vázquez, Wellstein, Woosley, Young   +74 more
core   +1 more source