Results 111 to 120 of about 493,128 (267)

Long-term variability survey of the old open cluster NGC 6791 [PDF]

, 2003
We present the results of a long-term variability survey of the old open cluster NGC 6791. The BVI observations, collected over a time span of 6 years, were analyzed using the ISIS image subtraction package.
B. J. Mochejska, J. Kaluzny, K. Z. Stanek, Kaluzny J., Kaluzny J., Mochejska B. J., Rucinski S. M.   +6 more
core   +3 more sources

XMM-NEWTON OBSERVATIONS OF THE DWARF NOVA RU Peg IN QUIESCENCE: PROBE OF THE BOUNDARY LAYER [PDF]

, 2011
We present an analysis of X-ray and UV data obtained with the XMM-Newton Observatory of the long-period dwarf nova RU Peg. RU Peg contains a massive white dwarf (WD), possibly the hottest WD in a dwarf nova (DN), it has a low inclination, thus optimally ...
S. Balman, P. Godon, E. Sion, J. Ness, E. Schlegel, P. Barrett, P. Szkody   +6 more
semanticscholar   +1 more source

Development of Graphene Oxide@Hyperbranched Polyglycerol Nanofluids for Application in Enhanced Oil Recovery

Journal of Applied Polymer Science, Volume 142, Issue 45, December 5, 2025.
Schematic representation of graphene oxide (GO) nanofluid functionalization with surfactants or hyperbranched polyglycerol (HPG) for enhanced oil recovery (EOR). The diagram highlights: (1) wettability alteration in limestone and sandstone reservoirs; (2) nanofluid injection into porous media; (3) atomic force microscopy (AFM) characterization of oil ...
Kelly C. B. Maia, Agatha Densy dos S. Francisco, Arley Sena do Nascimento, Giulia C. da Cruz, Felipe A. M. M. Macedo, Cesar Raitz, Daniel Grasseschi   +6 more
wiley   +1 more source

Nova Explosion of Mass-Accreting White Dwarfs [PDF]

Publications of the Astronomical Society of Japan, 1979
Abstract The evolution of mass-accreting white dwarfs has been computed from the onset of accretion through nova explosion. Two cases have been considered: a carbon-oxygen white dwarf of 1.3 M◉ with the accretion rate of 1.0 × 10−10M◉ yr−1 and a helium white dwarf of 0.4 M◉ with 1.0×10−8M◉ yr−1.
Ken’ichi Nomoto, Kyoji Nariai, Daiichiro Sugimoto   +2 more
openaire   +1 more source

Mozambique's Colonial‐Era Non‐Human Primate Collection at the National Museum of Natural History and Science of Lisbon: Taxonomy, Provenance, and Historical Context

American Journal of Biological Anthropology, Volume 188, Issue 4, December 2025.
ABSTRACT Objectives This study reviews Mozambique's non‐human primate collection housed at the National Museum of Natural History and Science (MUHNAC) in Lisbon. The collection originates from the Zoological Missions of Mozambique (1948 and 1955) carried out under Portuguese colonial administration. The objectives of this work were to: i.
Matilde Osório, Cecilia Veracini
wiley   +1 more source

CC Sculptoris: A superhumping intermediate polar

, 2012
We present high speed optical, spectroscopic and Swift X-ray observations made during the dwarf nova superoutburst of CC Scl in November 2011. An orbital period of 1.383 h and superhump period of 1.443 h were measured, but the principal new finding is ...
A. Gulbis, A. P. Beardmore, Augusteijn, B. Warner, Barthelmy, Beuermann, Buckley, Burrows, Chen, Drake, Evans, Evans, Evans, F.-J. Hambsch, G. A. Wynn, Gehrels, Gulbis, Hellier, Hellier, Hellier, Hellier, Honey, Ishioka, J. P. Osborne, K. L. Page, K. van der Heyden, Kato, King, Matsui, Morales-Rueda, Norton, P. A. Evans, P. A. Woudt, Patterson, Patterson, Patterson, Patterson, Patterson, Pretorius, R. Coppejans, Roberts, Roming, Schwope, Silvestri, Skillman, Spruit, Tappert, Voges, Warner, Warner, Warner, Watson, Wood   +52 more
core   +1 more source

Binary orbits as the driver of γ-ray emission and mass ejection in classical novae [PDF]

, 2014
Classical novae are the most common astrophysical thermonuclear explosions, occurring on the surfaces of white dwarf stars accreting gas from companions in binary star systems.
A Shankar, AA Abdo, Amy J. Mioduszewski, AR Taylor, C. C. Cheung, DS Briggs, DW Hoard, ER Seaquist, ER Seaquist, EW Greisen, G Dubus, Gregory B. Taylor, HM Lloyd, I Heywood, J MacDonald, J Passy, J. L. Sokoloski, Jennifer Weston, JM Porter, JP McMullin, Jun Yang, Justin D. Linford, KL Page, Koji Mukai, Laura Chomiuk, M Kato, M Livio, MC Shepherd, Michael F. Bode, Michael P. Rupen, N Ivanova, N Roy, N Soker, Nirupam Roy, PJ Napier, R. J. Beswick, RD Gehrz, RJ Sault, S Starrfield, SN Shore, SPS Eyres, Stewart Eyres, T. J. O’Brien, Thomas Nelson, TJ O'Brien, U Munari, Valério A. R. M. Ribeiro, VARM Ribeiro, Yong Zheng, Zsolt Paragi   +49 more
core   +2 more sources

RNA m1A methyltransferase TRMT61A promotes colorectal tumorigenesis by enhancing ONECUT2 mRNA stability and is a potential therapeutic target

Cancer Communications, Volume 45, Issue 12, Page 1616-1644, December 2025.
Abstract Background The role of N1‐methyladenosine (m1A) in cancer is poorly understood. Here we explored the function of RNA methyltransferase TRNA methyltransferase 61A (TRMT61A) in colorectal cancer (CRC) and its potential as a therapeutic target. Methods RNA m1A levels were assessed through liquid chromatography‐mass spectrometry.
Xiaoting Zhang, Na Qin, Fenfen Ji, Hao Su, Haiyun Shang, Hongyan Chen, Dan Huang, Qing Li, Jing Ren, Weixin Liu, Yifei Wang, Wei Kang, Jiabin Wu, Chi‐Chun Wong, Zongwei Cai, Matthew Tak Vai Chan, William Ka Kei Wu, Jun Yu, Huarong Chen   +18 more
wiley   +1 more source

Low-metallicity Nova Explosions: A Site for Weak rp-process Nucleosynthesis

The Astrophysical Journal
Classical novae are common cataclysmic events involving a binary system of a white dwarf and a main-sequence or red giant companion star. In metal-poor environments, these explosions produce ejecta differently from their solar counterparts due to the ...
Athanasios Psaltis, Jordi José, Richard Longland, Christian Iliadis   +3 more
doaj   +1 more source

Inner Disk Structure of Dwarf Novae in the Light of X-Ray Observations

Acta Polytechnica CTU Proceedings, 2015
Diversity of the X-ray observations of dwarf nova are still not fully understood. I review the X-ray spectral characteristics of dwarf novae during the quiescence in general explained by cooling flow models and the outburst spectra that show hard X-ray ...
S. Balman
doaj   +1 more source