Results 91 to 100 of about 1,114,432 (235)

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

Sino‐Mexican Encounters Before the ‘Diplomatic Opening’: Exhibition Diplomacy and Grassroots Friendship in the 1960s

History, EarlyView.
Abstract During the 1960s, Mexico's Institutional Revolutionary Party (PRI) embraced Chinese overtures for a commercial opening as consistent with its anti‐imperialist posture, thereby foreshadowing the diplomatic opening to China in 1972. Yet this professed ideological pluralism was eclipsed by an underlying allegiance to the United States' anti ...
YIXIN TIAN
wiley   +1 more source

Nebular abundances of southern symbiotic stars

, 2005
We have calculated relative element abundances for a sample of 43 symbiotic stars. Helium abundances and the relative elemental abundances N/O, Ne/O, Ar/O were derived from new spectra collected in the optical range through low dispersion spectroscopy.
G. J. M. Luna, R. D. D. Costa
core   +1 more source

Pre-nova Observations of T CrB: A View from the CHARA Array

The Astrophysical Journal Letters
T Coronae Borealis (T CrB, HD 143454) is a symbiotic recurrent nova consisting of a red giant and white dwarf with recent eruptions in 1866 and 1946 and an anticipated eruption in the mid-2020s.
Ryan Norris, Narsireddy Anugu, Thomas Gaudin, Magdalena Otulakowska-Hypka, Fabian Kaczmarek, Cameron Caruso, Cody Gustafson, Andrew Kotowski, Rebecca Proni, Nirupam Roy, Fabien Baron, Dipankar P.K Banerjee, Dana K. Baylis-Aguirre, Michelle J. Creech-Eakman, Justin Linford, Alexandre Gallenne, Joanna Mikołajewska, John D. Monnier, Denis Mourard, Ulisse Munari, Nicolas Nardetto, Rachael M. Roettenbacher, Jennifer L Sokoloski, Montana Williams, C. E. Woodward, Stefan Kraus, Jean-Baptiste Le Bouquin, Sorabh Chhabra, Isabelle Codron, Jacob Ennis, Tyler Gardner, Mayra Gutierrez, Noura Ibrahim, Cyprien Lanthermann, Benjamin R. Setterholm, Christopher D. Farrington, Olli Majoinen, Norm Vargas, Douglas R. Gies, Gail H. Schaefer, Theo ten Brummelaar   +40 more
doaj   +1 more source

MIRACLE URBANIZATION: Spatial Production and Political Legitimation in the Sochi 2014 and Beijing 2022 Olympics

International Journal of Urban and Regional Research, EarlyView.
Abstract From desert ski resorts to subtropical Winter Games, there is a global proliferation of ‘mission‐impossible’ mega‐projects. The prevailing frameworks of city branding and urban entrepreneurism fail to explain the political logics behind these seemingly irrational projects.
Yiqiu Liu, Sven Daniel Wolfe
wiley   +1 more source

PLAYING WITH PREFIGURATION: Ludic Spaces and Prefigurative Organizing for Children's Right to the Mobile City

International Journal of Urban and Regional Research, EarlyView.
Abstract Earlier writings on the political importance of play have discussed how it can make players conscious of the possibilities of otherwise worlds. Prefigurative politics has very similar aims, but the discussion between the two has been limited.
JONNE SILONSAARI
wiley   +1 more source

Analyzing Supervised Machine Learning Models for Classifying Astronomical Objects Using Gaia DR3 Spectral Features

Applied Sciences
In this paper, we present an analysis of the effectiveness of various machine learning algorithms in classifying astronomical objects using data from the third release (DR3) of the Gaia space mission.
Orestes Javier Pérez Cruz, Cynthia Alejandra Martínez Pinto, Silvana Guadalupe Navarro Jiménez, Luis José Corral Escobedo, Minia Manteiga Outeiro   +4 more
doaj   +1 more source

Symbiotic Mutualism? A Process Perspective on the HRM and L&D Professions

Human Resource Management Journal, EarlyView.
ABSTRACT Professional HR associations are pivotal, yet under‐researched, institutions that shape recognition, accreditation, legitimacy and professional boundary definition in the HR field. In this paper we argue that as HR work expands into domains such as talent management, HR analytics, coaching, and mentoring, professional boundaries are better ...
Valerie Anderson, Carole Elliott, Patricia Jolliffe, Paul Tosey   +3 more
wiley   +1 more source

Detection of optical flickering from the symbiotic Mira-type binary star EF Aquilae

, 2018
We performed photometry with a 1 minute time resolution of the symbiotic stars EF Aquilae, AG Pegasi and SU Lyncis in Johnson B and V band. Our observations of the symbiotic Mira-type star EF Aql demonstrate the presence of stochastic light variations with an amplitude of about 0.25 magnitudes on a time scale of 5 minutes.
Dimitrov, V. V., Boeva, S., Martí, J., Bujalance-Fernández, I., Sánchez-Ayaso, E., Latev, G. Y., Nikolov, Y. M., Petrov, B., Mukai, K., Stoyanov, K. A., Zamanov, R. K.   +10 more
openaire   +2 more sources

Toward a Politics of Planetary Care: The Limits of More‐Than‐Human Approaches, Silenced Notes From Indigenous Forest Worlds in India

American Anthropologist, EarlyView.
ABSTRACT In response to the planetary climate crisis, influential scholarship has directed us to decenter the human, recognize nonhuman agency, and imagine more‐than‐human futures. But what might this leave out? Drawing on Indigenous forest worlds in India and the incarcerated intellectual‐activists who struggled alongside them, this article develops a
Alpa Shah
wiley   +1 more source