Results 31 to 40 of about 301 (183)

Integrating and assessing metacommunity drivers of ecosystem function and resilience in benthic algal systems

Oikos, EarlyView.
Understanding the scales and mechanisms by which species composition interacts with ecosystem functions is critical for forecasting the effects of environmental perturbations on ecosystem services. However, the linkages between what regulates the ecosystem functions of dispersal‐capable networks of communities (metacommunities) and what regulates a ...
Thomas P. Shannon, Evelyn E. Gaiser
wiley   +1 more source

The S-PLUS 12-band Photometry as a Powerful Tool for Discovery and Classification: Ten Cataclysmic Variables in a Proof-of-concept Study

The Astrophysical Journal Letters
Multiband photometric surveys provide a straightforward way to discover and classify astrophysical objects systematically, enabling the study of a large number of targets at relatively low cost.
Raimundo Lopes de Oliveira, Amanda S. de Araújo, Angela C. Krabbe, Claudia L. Mendes de Oliveira, Koji Mukai, Luis A. Gutiérrez-Soto, Antonio Kanaan, Romualdo Eleutério, Marcelo Borges Fernandes, Fredi Quispe-Huaynasi, William Schoenell, Tiago Ribeiro   +11 more
doaj   +1 more source

Irradiation of the companion star in cataclysmic variables [PDF]

Monthly Notices of the Royal Astronomical Society, 1989
Il est demontre que le rayonnement de l'ecoulement d'accretion au niveau de la naine blanche dans une binaire cataclysmique est incapable de penetrer la photosphere du compagnon. Le rayonnement peut, dans quelques cas, ioniser l'ecoulement d'accretion subsonique juste en dessous du point de Lagrange ...
openaire   +1 more source

In Situ Construction of Phosphorus‐Containing Crosslinked Urethane Network Combined With Ammonium Polyphosphate via Reactive Blending for Enhancing Flame Retardancy and Anti‐Dripping Performance of Polylactic Acid Composites

Safety Science and Technology, EarlyView.
By in situ reaction blending, DOPO‐HQ and THEIC were added to PLA with MDI to construct a phosphorus containing polyurethane network, which significantly improved the flame retardant and anti‐dripping properties of polylactic acid composites. ABSTRACT Polylactic acid (PLA) is highly flammable and prone to severe melt dripping during combustion, which ...
Chiyuan Chen, Sadiqa Khan, Hongyu Yang, Xiaming Feng, Chaojun Wan   +4 more
wiley   +1 more source

Observations of Five Southern-hemisphere Cataclysmic Binary Stars

The Astronomical Journal
We present observations and analyses of five little-studied cataclysmic binary stars in the southern celestial hemisphere. Our new observations are from the South African Astronomical Observatory.
John R. Thorstensen, Annabelle E. Niblett, Shreya Gandhi, Lauren P. Zanarini, Gavin D. Goss, Arnav Singh, Divik Verma, Ryan C. Hickox, Emmanuel A. Durodola, Jiaqi Martin Ying   +9 more
doaj   +1 more source

Benefitting from brutality? Profits of north‐western Europe's slave trade at the eve of the industrial revolution

The Economic History Review, EarlyView.
Abstract One of the most contentious issues in the study of the Atlantic slave trade is the profitability of the trade. In this paper, we contribute by pooling all available data on transatlantic slave ship voyage accounts into a joint dataset. This dataset includes data from a period of 100 years (1730–1830) and from five nations (Denmark, France ...
Klas Rönnbäck, Guillaume Daudin, Gerhard de Kok, David Richardson, Miguel Geraldes Rodrigues   +4 more
wiley   +1 more source

[PK2008] HalphaJ115927 and IGR J14091-6108: Two New Intermediate Polars Above the Period Gap

The Astronomical Journal
This study presents a detailed timing analyses of two cataclysmic variables (CVs), [PK2008] HalphaJ115927 and IGR J14091-6108, utilizing the optical data from the Transiting Exoplanet Survey Satellite.
Arti Joshi
doaj   +1 more source

PARALLAX AND DISTANCE ESTIMATES FOR TWELVE CATACLYSMIC VARIABLE STARS [PDF]

The Astronomical Journal, 2008
We report parallax and distance estimates for twelve more cataclysmic binaries and related objects observed with the 2.4m Hiltner telescope at MDM Observatory. The final parallax accuracy is typically about 1 mas. For only one of the twelve objects, IR Gem, do we fail to detect a significant parallax.
Thorstensen, J. R., Lepine, S., Shara, M.   +2 more
openaire   +2 more sources

Decoding the Hot‐Mitochondrion Paradox

BioEssays, Volume 48, Issue 7, July 2026.
A distributed mechanism of mitochondrial heat generation is proposed in which all ion‐translocating proteins embedded within the inner mitochondrial membrane contribute to localized heat generation. All ion‐translocating proteins embedded within the inner mitochondrial membrane (IMM)—with ATP synthase shown here as an example—are proposed to function ...
Peyman Fahimi, Michael Lynch, Chérif F. Matta   +2 more
wiley   +1 more source

OBSERVATIONS OF CATACLYSMIC VARIABLES AT KOLONICA OBSERVATORY

Odessa Astronomical Publications, 2007
We present a small sample of our observations of cataclysmic variable stars obtained at Kolonica Observatory, The presented data for CI UMa, MR UMa and SW UM were obtained in 2006 and 2007. Our observations demonstrate that also the small telescopes with
S. Parimucha, P. Dubovsky, I. Kudzej
doaj   +1 more source