Results 81 to 90 of about 4,234,405 (332)

Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments

FEBS Open Bio, EarlyView.
Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau, Concepción Iñiguez, Sebastià Capó‐Bauçà, Jeroni Galmés   +3 more
wiley   +1 more source

Iron‐dependent lysosomal LDL oxidation induces the expression of scavenger receptor A in human THP‐1 monocytes

FEBS Open Bio, EarlyView.
In human monocytic cells THP‐1, a limited uptake of native—not oxidized—LDL/VLDL induced expression of scavenger receptor A and cellular adhesion. Induction was inhibited by lysosomotropic (WR‐1065) and lipophilic (BHT) antioxidants and by siRNAs against ferritinophagy.
Martina Čierna, Richard Buchal, Martin Leníček, Amit Shachak, Jan Pláteník   +4 more
wiley   +1 more source

Assessing copepod (Crustacea: Copepoda) species richness at different spatial scales in northwestern Romanian caves

Subterranean Biology, 2011
The aim of the present study was to assess copepod species richness in groundwater habitats from the Pădurea Craiului Mountains, Transylvania (northwestern Romania).
Ioana N. Meleg, Frank Fiers, Oana Moldovan   +2 more
doaj   +1 more source

An efficient strategy for producing RNA‐free Nucleocapsid protein of SARS‐CoV‐2 for biochemical and structural investigations

FEBS Open Bio, EarlyView.
Cleavable N‐terminal Thioredoxin fusion enabled soluble expression and purification of otherwise insoluble SARS‐CoV‐2 Nucleocapsid (N) protein. A four‐step purification strategy yielded highly homogeneous, RNA‐free N protein. Binding assays showed high RNA affinity (Kd ~ 28 nm). The study will facilitate high‐resolution structural studies of N protein,
Shweta Singh, Gagan D. Gupta
wiley   +1 more source

The Regulation of Trace Metal Elements in Cancer Ferroptosis

Advanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang, Yuanyuan Xue, Lei Chang, Xuena Zhu, Wenjun Liu, Tingbo Liang   +5 more
wiley   +1 more source

Global richness patterns of alpine genus Gentiana depend on multiple factors

Ecology and Evolution
Environmental factors impact species richness differently across taxonomic groups, and understanding the geographic patterns and drivers influencing alpine plant richness remains limited.
Thae Hnin Wai, Xin Liang, Huanhuan Xie, Lian Liu, Yingji Pan, Ying Xu, Lina Zhao, Xiaoting Xu   +7 more
doaj   +1 more source

Worldwide evidence of a unimodal relationship between productivity and plant species richness

Science, 2015
Grassland diversity and ecosystem productivity The relationship between plant species diversity and ecosystem productivity is controversial. The debate concerns whether diversity peaks at intermediate levels of productivity—the so-called humped-back ...
L. Fraser, Jason Pither, A. Jentsch, M. Sternberg, M. Zobel, Diana Askarizadeh, S. Bartha, C. Beierkuhnlein, J. A. Bennett, Alexander Bittel, B. Boldgiv, I. Boldrini, E. Bork, L. Brown, M. Cabido, J. Cahill, C. Carlyle, G. Campetella, S. Chelli, Ofer Cohen, A. Csergő, S. Díaz, Lucas Enrico, David J Ensing, A. Fidelis, J. Fridley, B. Foster, Heath W Garris, J. Goheen, H. Henry, M. Hohn, M. H. Jouri, J. Klironomos, Kadri Koorem, Rachael Lawrence-Lodge, R. Long, P. Manning, R. Mitchell, M. Moora, S. Müller, C. Nabinger, K. Naseri, G. Overbeck, T. Palmer, Sheena Parsons, Mari F. Pesek, V. Pillar, R. Pringle, Kathy Roccaforte, Amanda Schmidt, Z. Shang, R. Stahlmann, G. Stotz, S. Sugiyama, S. Szentes, Don Thompson, R. Tungalag, Sainbileg Undrakhbold, M. V. Van Rooyen, C. Wellstein, J. Wilson, Talita Zupo   +61 more
semanticscholar   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

Rodent species richness is correlated with carnivore species richness in Spain

Revue d'Écologie (La Terre et La Vie), 2010
Résumé. — La richesse spécifique des rongeurs et celle des carnivores sont corrélées en Espagne. — La diversité des niches écologiques favorise la coexistence des espèces, accroissant la richesse spécifique. La richesse spécifique des carnivores devrait donc croître avec celle de leurs proies, en raison des niches trophiques ainsi ouvertes.
Moreno-Rueda, Gregorio, Pizarro, Manuel
openaire   +3 more sources

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

Advanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang, Hanliang Zhu, Zhiyang Wang, Zhijun Qiu, Xiao Wang, Zengxi Pan, Hongtao Zhu, Mingxing Zhang, Huijun Li   +8 more
wiley   +1 more source