Results 181 to 190 of about 112,298 (365)

High-speed Photometric Observations of ZZ Ceti White Dwarf Candidates

, 2015
We present high-speed photometric observations of ZZ Ceti white dwarf candidates drawn from the spectroscopic survey of bright DA stars from the Villanova White Dwarf Catalog by Gianninas et al., and from the recent spectroscopic survey of white dwarfs ...
Bergeron, P., Biddle, L. I., Bullivant, C. W., Deyoe, T. W., Dufour, P., Fontaine, G., Gianninas, A., Green, E. M., Grosjean, M., Guvenen, B., Hermes, J. J., Limoges, M. -M., O'Malley, C. J., Pearson, K., Van Grootel, V.   +14 more
core  

Mixed evidence for disturbance‐mediated apparent competition for declining caribou in western British Columbia, Canada

The Journal of Wildlife Management, EarlyView.
Investigating the decline of a caribou population in central British Columbia, we found that 1) recent wildfires were a stronger draw for primary ungulate prey than cutblocks, 2) most predators were associated with primary prey but had mixed responses to disturbance, and 3) caribou used cutblocks, potentially increasing their risk.
Katie Tjaden‐McClement, Tazarve Gharajehdaghipour, Carolyn Shores, Shane White, Robin Steenweg, Mathieu Bourbonnais, Zoe Konanz, A. Cole Burton   +7 more
wiley   +1 more source

A Search for White Dwarf Companions of Be Stars [PDF]

, 1992
A. J. M. Piters, E. J. A. Meurs, J. Coté, M. H. van Kerkwijk, J. van Paradijs, O. R. Pols, L. B. F. M. Waters   +6 more
openalex   +1 more source

Age is not a primary risk factor for ACL injury—A comprehensive review of ACL injury and reinjury risk factors confounded by young patient age

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Revision surgery after anterior cruciate ligament reconstruction (ACL‐R) is hypothesized to be the result of an interplay between factors associated with the anatomy, physiological characteristics and environment of the patient. The multifactorial nature of revision ACL‐R risk is difficult to quantify, and evidence regarding the independent ...
Bálint Zsidai, Ramana Piussi, Philipp W. Winkler, Armin Runer, Pedro Diniz, Riccardo Cristiani, Eric Hamrin Senorski, Volker Musahl, Michael T. Hirschmann, Romain Seil, Kristian Samuelsson   +10 more
wiley   +1 more source

Five New Sirius-like White Dwarf–Main-sequence Star Systems with MagAO-X

The Astronomical Journal
Most known white dwarfs in multiple systems with main-sequence stars have been discovered with M-type companions, because the white dwarf causes detectable UV excess and bluer colors than expected from a single M star.
Logan A. Pearce, Jared R. Males, Sebastiaan Y. Haffert, Laird M. Close, Joseph D. Long, Eden A. McEwen, Joshua Liberman, Maggie Y. Kautz, Jay K. Kueny, Alycia J. Weinberger, Jialin Li, Elena Tonucci, Katie Twitchell, Avalon L. McLeod, Warren B. Foster, Olivier Guyon, Alexander D. Hedglen, Kyle Van Gorkom, Jennifer Lumbres, Lauren Schatz, Victor Gasho, Katie M. Morzinski, Phil M. Hinz   +22 more
doaj   +1 more source

Spectroscopic Studies of DB White Dwarfs: The Instability Strip of the Pulsating DB (V777 Herculis) Stars [PDF]

, 1999
A.L. Beauchamp, F. Wesemaël, P. Bergeron, G. Fontaine, R. A. Saffer, James Liebert, P. Brassard   +6 more
openalex   +1 more source

Green Synthesis of Nano‐Sized Metal Oxides (Ag2O, CuO, ZnO, MgO, CaO, and TiO2) Using Plant Extract for a Sustainable Environment

Nano Select, EarlyView.
Synthesis of metal oxide from different types of green plants for a sustainable environment. ABSTRACT The demand for green synthesis of metal oxide nanomaterials is increasing tremendously to achieve sustainable development goals and for a clean environment.
Sanjana Afrin Disha, Md. Sahadat Hossain, Md. Lawshan Habib, Samina Ahmed   +3 more
wiley   +1 more source

Stellar Cycle and Evolution of Polar Spots in an M+WD Binary

The Astrophysical Journal
Stellar activity cycles reveal continuous relaxation and induction of magnetic fields. The activity cycle is typically traced through the observation of cyclic variations in total brightness or Ca H&K emission flux of stars, as well as cyclic variations ...
Xinlin Zhao, Song Wang, Xue Li, Yue Xiang, Fukun Xu, Shenghong Gu, Bing Du, Jifeng Liu   +7 more
doaj   +1 more source

Transcriptomic and photosynthetic analyses of Synechocystis sp. PCC6803 and Chlorogloeopsis fritschii sp. PCC6912 exposed to an M-dwarf spectrum under an anoxic atmosphere. [PDF]

Front Plant Sci, 2023
Battistuzzi M, Morlino MS, Cocola L, Trainotti L, Treu L, Campanaro S, Claudi R, Poletto L, La Rocca N.   +8 more
europepmc   +1 more source

Boswellia oropedionis (Burseraceae) sp. nov., a frankincense tree from Socotra, and notes on B. ameero and B. bullata

Nordic Journal of Botany, EarlyView.
The new species Boswellia oropedionis Thulin and M.H.Weber is described, illustrated by photographs and mapped. This tree is only known from a small population growing on level limestone on the Qatariyah plateau in southern Socotra and is the twelfth endemic species of Boswellia from the Socotra archipelago. It differs from B.
Mats Thulin, Michael H. Weber, Sami Ali Mohammed Mubarak   +2 more
wiley   +1 more source