Results 81 to 90 of about 49,023 (273)

Landrace diversity and heritage of the indigenous millet crop fonio (Digitaria exilis): Socio‐cultural and climatic drivers of change in the Fouta Djallon region of Guinea

PLANTS, PEOPLE, PLANET, EarlyView.
White fonio (Digitaria exilis [Kippist] Stapf) is an understudied millet crop, indigenous to West Africa and cultivated in the region largely through traditional practices. This species is climate‐resilient, fast‐growing, nutritionally rich, and provides livelihoods and food security to rural communities.
George Burton, Benedetta Gori, Saidou Camara, Paolo Ceci, Nagnouma Conde, Charlotte Couch, Sekou Magassouba, Maria S. Vorontsova, Tiziana Ulian, Philippa Ryan   +9 more
wiley   +1 more source

Precise Mass, Orbital Motion, and Stellar Properties of the M-dwarf Binary LP 349−25AB

The Astrophysical Journal
LP 349−25 is a well-studied close stellar binary system comprised of two late M dwarf stars, where both stars are close to the limit between star and brown dwarf. This system was previously identified as a source of gigahertz radio emission.
Salvador Curiel, Gisela N. Ortiz-León, Amy J. Mioduszewski, Anthony B. Arenas-Martinez   +3 more
doaj   +1 more source

Sustainable Tourism and SDGs in the South Caucasus

Sustainable Development, EarlyView.
ABSTRACT This study examines sustainable tourism practices in the South Caucasus region (Armenia, Azerbaijan, and Georgia) through the lens of the United Nations Sustainable Development Goals (SDGs). A scoping literature review was conducted, analyzing academic papers from Scopus and Web of Science databases. Content analysis and expert validation were
Flavio Martins, Tatiana Sitchinava, Tigran Keryan, Alexander Mitrofanenko, Nelson Stefanelli, Yaniss Guigoz   +5 more
wiley   +1 more source

TOI-1994b: A Low-mass Eccentric Brown Dwarf Transiting A Subgiant Star

The Astronomical Journal
We present the discovery of TOI-1994b, a low-mass brown dwarf transiting a hot subgiant star on a moderately eccentric orbit. TOI-1994 has an effective temperature of ${7700}_{-410}^{+720}$ K, V magnitude of 10.51 mag and log( g ) of ${3.982}_{-0.065 ...
Emma Page, Joshua Pepper, Duncan Wright, Joseph E. Rodriguez, Robert A. Wittenmyer, Stephen R. Kane, Brett Addison, Timothy Bedding, Brendan P. Bowler, Thomas Barclay, Karen A. Collins, Phil Evans, Jonathan Horner, Eric L. N. Jensen, Marshall C. Johnson, John Kielkopf, Ismael Mireles, Peter Plavchan, Samuel N. Quinn, S. Seager, Avi Shporer, Keivan G. Stassun, Stephanie Striegel, Joshua N. Winn, George Zhou, Carl Ziegler   +25 more
doaj   +1 more source

Die now of hunger or later of thirst: Understanding climate change adaptation decisions in vulnerable contexts

Strategic Management Journal, EarlyView.
Abstract Research Summary Research on organizational climate change adaptation has focused on high‐income nations, neglecting vulnerable regions already facing severe climate impacts. This study addresses this gap by examining how decision‐makers in vulnerable contexts respond to climate change, drawing on a unique panel dataset of over 3000 ...
Lucrezia Nava, Jorge Chiapetti, Rui Barbosa da Rocha, Maja Tampe   +3 more
wiley   +1 more source

Modeling Brown Dwarfs, L Dwarfs, and T Dwarfs [PDF]

arXiv, 2002
In this brief contribution, I touch on a subset of recent efforts in spectral and opacity modeling aimed at improving our understanding of brown dwarfs, L dwarfs, and T dwarfs. I discuss theoretical calculations of the alkali line profiles, newly generated CrH opacities, new evidence for refractory rainout in T dwarfs from optical spectral measurements,
arxiv  

The sense that we're invisible: A longitudinal analysis of diverse women's experiences with structural violence in biomedical doctoral programs

Journal of Research in Science Teaching, EarlyView.
Abstract A longstanding and significant disparity in representation across gender, economic status, ethnicity, race, and sexual identity exists within STEM doctoral training. Most of the research on the retention and attrition of minoritized PhD STEM students focuses on individual factors, rather than system level issues.
Ida Salusky, Robin Remich, Remi Jones, Grevelin Ulerio, Richard McGee   +4 more
wiley   +1 more source

Wildfire influences species assemblage and habitat utilisation of boreal wildlife after more than a decade in northern Sweden

Wildlife Biology, EarlyView.
Fires can strongly change the vegetation structure and the availability of resources for wildlife, but fire suppression has long affected the natural role of fire in shaping boreal ecosystems in northern Europe. Recently, wildfires have increased in frequency, possibly due to global warming.
Emelie Fredriksson, Joris P. G. M. Cromsigt, Tim R. Hofmeester   +2 more
wiley   +1 more source

Brown dwarfs in Eddington-inspired Born-Infeld and beyond Horndeski theories

European Physical Journal C: Particles and Fields, 2019
We studied herein the mass and the radius of brown dwarfs predicted by beyond Horndeski (BH) and Eddington-inspired Born-Infeld (EiBI) gravity theories by numerically solving the modified non-relativistic hydrostatic equations of both theories. We used a
A. S. Rosyadi, A. Sulaksono, H. A. Kassim, N. Yusof   +3 more
doaj   +1 more source

WZ SGE STARS

Odessa Astronomical Publications, 2007
The WZ Sge type stars is a rare subclass of the cataclysmic variables (CVs). It possesses the properties of both dwarf novae and recurrent novae. The WZ Sge stars have the shortest orbital periods (typically 80 - 90 minutes) known among the dwarf novae ...
E. P. Pavlenko
doaj   +1 more source