Results 31 to 40 of about 91,502 (296)

The properties of ten O-type stars in the low-metallicity galaxies IC 1613, WLM and NGC 3109 [PDF]

, 2014
Massive stars likely played an important role in the reionization of the Universe, and the formation of the first black holes. Massive stars in low-metallicity environments in the local Universe are reminiscent of their high redshift counterparts.
de Koter, A., Kaper, L., Ramirez-Agudelo, O. H., Sana, H., Tramper, F.   +4 more
core   +3 more sources

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

FEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan, Victoria Scarpelli, Marten Exterkate   +2 more
wiley   +1 more source

Modelling the orbital modulation of ultraviolet resonance lines in high-mass X-ray binaries [PDF]

, 2001
The stellar-wind structure in high-mass X-ray binaries (HMXBs) is investigated through modelling of their ultraviolet (UV) resonance lines. For the OB supergiants in two systems, Vela X-1 and 4U1700-37, high-resolution UV spectra are available; for Cyg X-
Anders, Blondin, Bohlin, Bohlin, Bolton, Bolton, Bondi, Bonnet-Bidaud, Boroson, Boroson, Boroson, Bregman, Cassatella, Cassinelli, Castor, Chevalier, Conti, Cowley, Davidson, Davis, Deeter, Dupree, Dupree, G. Hammerschlag-Hensberge, Garmany, Giddings, González-Riestra, Groenewegen, Groenewegen, Groenewegen, Haberl, Hammerschlag-Hensberge, Hammerschlag-Hensberge, Hammerschlag-Hensberge, Hammerschlag-Hensberge, Haser, Hatchett, Hatchett, Heap, Heemskerk, Hilditch, Howarth, Howarth, Howarth, Hutchings, Hutchings, Hutchings, Hutchings, J. Th. van Loon, Kallman, Kallman, Kaper, Kaper, Kaper, Kaper, Kudritzki, L. Kaper, Lamers, Lamers, Lamers, Levine, Lucy, Masai, McCray, Nagase, Osmer, Owocki, Pakull, Payne, Prinja, Prinja, Reynolds, Sadakane, Shakura, Sterken, Tarter, Treves, van der Klis, van Loon, van Loon, van Paradijs, van Paradijs, van Paradijs, Vrtilek, Walborn, Webster, White, Wojdowski, Wu, Zuiderwijk   +89 more
core   +3 more sources

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

The Magnetised Bellows of Betelgeuse

, 2012
We present calculations for a magnetised hybrid wind model for Betelegeuse ($\alpha - $Orionis). The model is a direct application of our previously derived theory, combining a canonical Weber-Davis (WD) stellar wind with dust grains in the envelope of ...
Anand Thirumalai, Aurière, Bai, Bedijn, Bernat, Bester, Bester, Bloemhof, Bowen, Bowen, Brown, Buscher, Danchi, David, Davidson, Dorch, Draine, Draine, Elitzur, Elitzur, Falceta-Gonçalves, Falceta-Gonçalves, Fleischer, Gail, Guandalini, Harper, Harper, Harper, Harper, Hartmann, Hartmann, Haubois, Hindmarsh, Holzer, Jeremy S. Heyl, Jura, Lamers, Liberatore, Lim, Lobel, Lobel, Noriega-Crespo, Onaka, Perrin, Plez, Rodgers, Schröder, Schwarzschild, Skinner, Smith, Soker, Thirumalai, Ueta, Uitenbroek, Verhoelst, Vishniac, Weber, Wilson, Wilson, Woitke, Wood   +60 more
core   +1 more source

Imeglimin attenuates liver fibrosis by inhibiting vesicular ATP release from hepatic stellate cells

FEBS Letters, EarlyView.
Imeglimin, at clinically relevant concentrations, inhibits vesicular ATP accumulation and release from hepatic stellate cells, thereby attenuating purinergic signaling and reducing fibrogenic activation. This mechanism reveals a newly identified antifibrotic action of imeglimin beyond glycemic control.
Seiji Nomura, Lixiang Wang, Nao Hasuzawa, Ayako Nagayama, Sawako Moriyama, Kenji Ashida, Yoshinori Moriyama, Masatoshi Nomura, Ken Yamamoto   +8 more
wiley   +1 more source

Key Questions of Solar Wind–Moon Interaction

Space: Science & Technology, 2023
Key questions on solar wind–Moon interaction are reviewed. As the nearest celestial body to Earth, Moon’s space environment is distinctive to Earth’s mainly because of lack of a significant atmosphere/ionosphere and a global magnetic field. From a global
Hui Zhang, Jinbin Cao, Yangting Lin, Yong Wei, Lei Li, Xianguo Zhang, Honglei Lin, Lianghai Xie   +7 more
doaj   +1 more source

RAD50 missense variants differentially affect the DNA damage response and mitotic progression

FEBS Letters, EarlyView.
RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker, Swantje Kebel, Lea Völkening, Anna Vatselia, Louisa Weinhold, Girmay Asgedom, Axel Schambach, Detlev Schindler, Thilo Dörk, Kristine Bousset   +9 more
wiley   +1 more source

Colliding wind binaries and gamma-ray binaries : relativistic version of the RAMSES code

, 2012
Gamma-ray binaries are colliding wind binaries (CWB) composed of a massive star a non-accreting pulsar with a highly relativistic wind. Particle acceleration at the shocks results in emission going from extended radio emission to the gamma-ray band.
Dubus, Guillaume, Fromang, Sebastien, Lamberts, Astrid, Lesur, Geoffroy   +3 more
core   +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