Results 91 to 100 of about 5,702,760 (334)

On the universal outcome of star-formation: Is there a link between stars and brown-dwarfs?

, 2003
(abridged) The recent evidence obtained by Briceno et al. that star-formation in Taurus-Auriga (TA) may be producing significantly fewer brown dwarfs (BDs) per star than the ONC is investigated by setting up a realistic model stellar plus BD population ...
Aarseth, Adams, Bate, Bhattacharyya, Bonnell, Bontemps, Boss, Boss, Bouvier, Bouvier, Bouy, Briceno, Burgasser, Burkert, Carpenter, Close, de la Fuente Marcos, Delgado-Donate, Duchêne, Duchêne, Duquennoy, Elmegreen, Estelle Moraux, Fischer, Gaspard Duchêne, Gizis, Gizis, Gomez, Haisch, Halbwachs, Hartigan, Hartmann, Hartmann, Hartmann, Henry, Hillenbrand, Hillenbrand, Horton, Jerome Bouvier, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Köhler, Lada, Leinert, Luhman, Luhman, Marcy, Martín, Martín, Mathieu, Matzner, Mayor, Mazeh, Mermilliod, Moraux, Motte, Muench, Muench, Myers, Padoan, Pavel Kroupa, Pinfield, Prosser, Reid, Reipurth, Reipurth, Richichi, Sterzik, Sterzik, White, White, White, Woitas, Wuchterl   +82 more
core   +1 more source

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

FEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia, Eric Catalina‐Hernandez, Maialen Cabrerizo‐Idiazabal, Ramon Barnadas‐Rodríguez, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +5 more
wiley   +1 more source

V.P.Tsessevich - a way in science

Odessa Astronomical Publications, 2017
The biography of Vladimir Platonovich Tsessevichj one of the most prominent variable star researches? is briefly presented. The opening talk at the memorial conference ”Variable Stars” (Odessafl September 1-5?
V. G. Karetnikov
doaj   +1 more source

Discovery of a Wolf-Rayet Star Through Detection of its Photometric Variability

, 2011
We report the serendipitous discovery of a heavily reddened Wolf-Rayet star that we name WR142b. While photometrically monitoring a cataclysmic variable, we detected weak variability in a nearby field star.
Colin Littlefield, Colin McClelland, Conti, Egan, G. H. “Howie” Marion, Hénault-Brunet, Indebetouw, J. Craig Wheeler, József Vinkó, Mauerhan, Peter Garnavich, Ralchenko, Rauw, Reipurth, Shara, Smith, Terrence Rettig, Wachter, Wolf   +18 more
core   +1 more source

Photometric survey of the red giant V449 Cygni over half a century (1974 to 2022). A semi-regular variable star with a period of ~54 days [PDF]

, 2022
Guy Boistel
openalex   +1 more source

VLT/X-shooter observations of the low-metallicity blue compact dwarf galaxy PHL 293B including a luminous blue variable star [PDF]

, 2011
(abridged) We present VLT/X-shooter spectroscopic observations in the wavelength range 3000-23000A of the extremely metal-deficient blue compact dwarf (BCD) galaxy PHL 293B containing a luminous blue variable (LBV) star.
Y. Izotov, N. Guseva, K. Fricke, C. M. F. Radioastronomie, Bonn, H Germany, M. A. Observatory, Kiev, Ukraine, Luth, O. Paris, Meudon, France., I. F. Astrophysik, Goettingen Universitat, Goettingen   +15 more
semanticscholar   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

RESEARCH OF THE LONG-TERM BEHAVIOUR OF THE PLEIADES BY USING OF PHOTOGRAPHIC PLATES FROM UKRVO DIGITAL ARCHIVE AND BALDONE OBSERVATORY

Odessa Astronomical Publications, 2016
The Pleiades Star Cluster (M45) is one of the most studied star clusters in the galaxy. At the same time as part of the Pleiades are many long-period variable stars, including flashing that need further study.
L. V. Kazantseva, V. M. Andruk, S. V. Shatokhina, Yu. I. Protsyuk, I. Eglitis, M. Eglite   +5 more
doaj   +1 more source

The slowly variable star FY Lacertae

, 2017
Photometric observations and analysis of FY Lac were performed in order to determine the variability characteristics, using measurements taken at Loiano site of Bologna Astronomical Observatory and AAVSO data.
Benna, Carlo, Courtial, Vittorio Augusto Zasa, Fucci, Alice, Gardiol, Daniele, Maldarella, Fabio, Pace, Davide, Pettiti, Giuseppe   +6 more
core  

Multiperiodicity, modulations and flip-flops in variable star light curves I. Carrier fit method [PDF]

, 2011
Context. The light curves of variable stars are commonly described using simple trigonometric models, that make use of the assumption that the model parameters are constant in time.
J. Pelt, N. Olspert, M. Mantere, Ilkka Tuominen   +3 more
semanticscholar   +1 more source