Results 81 to 90 of about 5,702,760 (334)

Discovery of a rapidly pulsating subdwarf B star candidate in omega Cen

, 2008
We report the discovery of the first variable extreme horizontal branch star in a globular cluster (omega Cen). The oscillation uncovered has a period of 114 s and an amplitude of 32 mmags.
A. Calamida, Bedin, Brown, Calamida, Castellani, Castellani, Castellani, Charpinet, Charpinet, Charpinet, D'Antona, D'Antona, D'Cruz, Del Principe, G. Bono, Greggio, Han, Han, Han, Heber, Kilkenny, Lee, Moni Bidin, Napiwotzki, Oreiro, Pietrinferni, Piotto, Reed, S. K. Randall, Stetson, Stetson, Stetson, Stetson, van Grootel   +33 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

Variable rotational line broadening in the Be star Achernar [PDF]

, 2013
The main theoretical problem for the formation of a Keplerian disk around Be stars is how to supply angular momentum from the star to the disk, even more so since Be stars probably rotate somewhat sub-critically.
T. Rivinius, D. Baade, R. H. Townsend, A. Carciofi, S. Štefl   +4 more
semanticscholar   +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

The Gaia Parallax Discrepancy for the Cluster Pismis 19 and Separating δ Scutis from Cepheids

The Astrophysical Journal
Pre-Gaia distances for the open cluster Pismis 19 disagree with Gaia parallaxes. A Two Micron All Sky Survey (2MASS) JK _s red clump distance was therefore established for Pismis 19 (2.90 ± 0.15 kpc), which reaffirms that zero-point corrections for Gaia ...
Daniel Majaess, Charles J. Bonatto, David G. Turner, Roberto K. Saito, Dante Minniti, Christian Moni Bidin, Danilo González-Díaz, Javier Alonso-Garcia, Giuseppe Bono, Vittorio F. Braga, Maria G. Navarro, Giovanni Carraro, Matias Gomez   +12 more
doaj   +1 more source

Pulsating star research and the Gaia revolution

EPJ Web of Conferences, 2017
In this article we present an overview of the ESA Gaia mission and of the unprecedented impact that Gaia will have on the field of variable star research.
Eyer Laurent, Clementini Gisella, Guy Leanne P., Rimoldini Lorenzo, Glass Florian, Audard Marc, Holl Berry, Charnas Jonathan, Cuypers Jan, Ridder Joris De, Evans Dafydd W., de Fombelle Gregory Jevardat, Lanzafame Alessandro, Lecoeur-Taibi Isabelle, Mowlavi Nami, Nienartowicz Krzysztof, Riello Marco, Ripepi Vincenzo, Sarro Luis, Süveges Maria   +19 more
doaj   +1 more source

CAN RELATIONSHIP BENEFITS MAKE CUSTOMERS COMMITTED AND LOYAL?

Jurnal Manajemen dan Wirausaha, 2019
Tough competition has pushed four-star hotels in Surabaya to manage their competitive strategies. One of them is by providing relational benefits to maintain customer commitment and loyalty.
Fransisca Andreani, Laurencia Jap, Ivana Karina Hosea   +2 more
doaj   +1 more source

Machine learning techniques to select Be star candidates. An application in the OGLE-IV Gaia south ecliptic pole field

, 2017
Statistical pattern recognition methods have provided competitive solutions for variable star classification at a relatively low computational cost.
García-Varela, A., Hernández, J., Pérez-Ortiz, M. F., Quiroz, A. J., Sabogal, B. E.   +4 more
core   +1 more source

The molecular gas around the luminous blue variable star G24.73+0.69 [PDF]

, 2011
Aims. We study the molecular environment of the luminous blue variable star G24.73+0.69 to investigate the origin of the two infrared shells around this massive star and determine its effects on the surrounding interstellar medium. Methods.
A. Petriella, S. Paron, E. Giacani
semanticscholar   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source