Results 51 to 60 of about 20,557 (265)

Rotational Velocities of B Stars

open access: yesThe Astrophysical Journal, 2002
We measured the projected rotational velocities of 1092 northern B stars listed in the Bright Star Catalogue (BSC) and calibrated them against the 1975 Slettebak et al. system. We found that the published values of B dwarfs in the BSC average 27% higher than those standards.
Abt, Helmut A.   +2 more
openaire   +2 more sources

Supernovae from Rotating Stars [PDF]

open access: yes, 2017
36 pages, 15 figures, published in Handbook of Supernovae, A.W. Alsabti and P.
Meynet, Georges, Maeder, Andre
openaire   +2 more sources

From an Intermittent Rotating Star to a Leader [PDF]

open access: yesProceedings of the twenty-sixth annual ACM symposium on Principles of distributed computing, 2007
Considering an asynchronous system made up of n processes and where up to t of them can crash, finding the weakest assumptions that such a system has to satisfy for a common leader to be eventually elected is one of the holy grail quests of fault-tolerant asynchronous computing. This paper is a step in such a quest. It has two main contributions. First,
Fernández, Antonio, Raynal, Michel
openaire   +2 more sources

Period spacing of gravity modes strongly affected by rotation - Going beyond the traditional approximation

open access: yes, 2017
Context. As of today, asteroseismology mainly allows us to probe the internal rotation of stars when modes are only weakly affected by rotation using perturbative methods.
Prat, V.   +10 more
core   +1 more source

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

open access: yesFEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley   +1 more source

The traditional approximation of rotation, including the centrifugal acceleration for slightly deformed stars

open access: yes, 2019
International audienceContext. The traditional approximation of rotation (TAR) is a treatment of the dynamical equations of rotating and stably stratified fluids in which the action of the Coriolis acceleration along the direction of the entropy (and ...
Prat, V., V. Prat, S. Mathis, Mathis, S.
core   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

Rotation Mixing and Variability in a Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1976
The purpose of this paper is to contribute to answer the question : why among A stars are there variable and “constant” stars? To do this we will first review the observational properties of these stars, then discuss the theoretical models based on the interplay between microscopic diffusion and rotation, and finally discuss the “unsolved” questions !
openaire   +1 more source

Convection and Differential Rotation in F-Type Stars

open access: yes, 2013
International audienceDifferential rotation is a common feature of main-sequence spectral F-type stars. In seeking to make contact with observations and to provide a self-consistent picture of how differential rotation is achieved in the interiors of ...
Brun, A.S.   +4 more
core   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

open access: yesFEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

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