Results 21 to 30 of about 81,520 (148)

Ancient Nova Shells of RX Pup Indicate Evolution of Mass Transfer Rate

The Astrophysical Journal Letters
RX Pup is a symbiotic binary that experienced a nova outburst in the 1970s. Here we report a discovery of a ∼1300 yr old nova shell around the system and a possible detection of a ∼7000 yr old nova shell. Together with the nova shell ejected in the 1970s,
Krystian Iłkiewicz, Joanna Mikołajewska, Michael M. Shara, Jacqueline K. Faherty, Simone Scaringi   +4 more
doaj   +1 more source

Effects of GLP‐1 agonists on the gut microbiota in type 2 diabetes mellitus: a systematic review

The FEBS Journal, EarlyView.
This systematic review evaluated 17 studies (12 preclinical and five clinical) on GLP‐1 receptor agonists in type 2 diabetes, demonstrating effects on the gut microbiota and metabolic improvement. The studies showed an increase in Bacteroidetes, Lactobacillus, and Akkermansia, and a reduction in Firmicutes.
Ranicleide Santos Dantas, Lucas Vinícius Souza Santos, André Gustavo Carvalho de Oliveira, Marina dos Santos Barreto, Deise Maria Rego Rodrigues Silva, Pedro Henrique Macedo Moura, Eloia Emanuelly Dias Silva, Ronaldy Santana Santos, Lucas Alves da Mota Santana, Rajiv Gandhi Gopalsamy, Adriana Gibara Guimarães, Lysandro Pinto Borges   +11 more
wiley   +1 more source

Orbital Period Changes in Recurrent Nova T Corona Borealis Prove That It Is Not a Type Ia Supernovae Progenitor

The Astrophysical Journal
T Corona Borealis (T CrB) is a recurrent nova and a symbiotic star that is commonly highlighted as the best case for being a progenitor of a Type Ia supernova (SN Ia) within the framework of single-degenerate models.
Bradley E. Schaefer
doaj   +1 more source

Light Curve Morphology and Spectral Evolution in Classical and Recurrent Novae: Toward a Unified Physical Framework

Universe
Nova eruptions exhibit diverse photometric and spectroscopic properties traditionally classified using empirical light-curve morphology and spectral taxonomy.
Saad Mohammed Alshehri, Nazhatulshima Ahmad   +1 more
doaj   +1 more source

The Frontiersmen as an Object of Czech Nationalism 1918–1935

Studies in Ethnicity and Nationalism, EarlyView.
ABSTRACT This study investigates the phenomenon of the frontiersmen, that is, the Czech minority border communities, as a part of the discourse of the Czech nationalist movement. Via the example of the Czechoslovak National Democracy party, it traces the frontiersmen on two levels.
Dominik Šípoš
wiley   +1 more source

Ultraviolet spectroscopy of old novae and symbiotic stars [PDF]

, 1981
The IUE spectra are presented for two old novae and for two of the symbiotic variables. Prominent emission line spectra are revealed as a continuum whose appearance is effected by the system inclination.
Ferland, G. J., Shields, G. A., Slovak, M. H., Lambert, D. L.   +3 more
core  

Sustainability Across the Curriculum: Sharing Ideas From a Cross‐Canada Community of Practice

New Directions for Teaching and Learning, Volume 2026, Issue 187, Page 31-37, Autumn (Fall) 2026.
ABSTRACT This chapter offers a “look‐back” one year after the formation of a Canadian sustainability education community of practice, and provides highlights of “sustainability across the curriculum” work that is taking place at Canadian Post‐Secondary Institutions, modeling benefits and challenges of cross‐campus organizing around sustainability ...
Janet Pivnick, Maria Spiliotopoulou
wiley   +1 more source

"INTER-LONGITUDE ASTRONOMY" (ILA) PROJECT: CURRENT HIGHLIGHTS AND PERSPECTIVES. I. MAGNETIC VS. NON-MAGNETIC INTERACTING BINARY STARS

Odessa Astronomical Publications, 2010
We present a review of highlights of our photometric and photo-polarimetric monitoring and mathematical modeling of interacting binary stars of different types classical, asynchronous, intermedi ate polars with 25 timescales corresponding to differ ent ...
I. L. Andronov, K. A. Antoniuk, A. V. Baklanov, V. V. Breus, V. Burwitz, L. L. Chinarova, D. Chochol, P. A. Dubovsky, W. Han, T. Hegedus, A. Henden, L. Hric, Chun-Hwey Kim, Yonggi Kim, S. V. Kolesnikov, I. Kudzej, A. Liakos, P. G. Niarchos, A. Oksanen, L. Patkos, K. Petrik, N. V. Pit', N. M. Shakhovskoy, N. A. Virnina, J. Yoon, S. Zola   +25 more
doaj   +1 more source

Evolution of the symbiotic nova RX Puppis [PDF]

, 2002
We present and discuss a hundred year history of activity of the hot component of RX Pup based on optical photometry and spectroscopy. The outburst evolution of RX Pup resembles that of other symbiotic novae whereas at quiescence the hot component shows ...
García, Lía Guillermina, Ferrer, Osvaldo Eduardo, Mikolajewska, J., J. Mikołajewska, Garcia, L., Ferrer, O., Brandi, Estela, Quiroga, Claudio Martín, Anupama, C. G., Mikołajewska, Joana, Anupama, G. C., Anupama, G.C., Brandi, E., García, Lía, Mikolajewska, Joanna, Quiroga, Claudio, Quiroga, C.   +16 more
core   +1 more source

Creating a Masterpiece. The Road to (and Beyond) Woodward and Hoffmann's 1969 Angewandte Chemie Treatise

The Chemical Record, Volume 26, Issue 8, August 2026.
This publication describes how R. B. Woodward and Roald Hoffmann crafted their masterpiece publications. Illustrations include Woodward's first draft of the famous “Violations There are none. Nor can violations be expected of so fundamental a principle of maximum bonding.” Original but discarded text shows the stepwise paths toward the W‐H masterpieces.
Jeffrey I. Seeman
wiley   +1 more source