Results 161 to 170 of about 240,146 (346)
White dwarfs in the European Galactic Plane Surveys (EGAPS) [PDF]
arXiv, 2006 The space density of white dwarfs is highly uncertain even nearby. This results from the fact that the known sample of white dwarfs is largely incomplete in part because most white dwarfs have been discovered as by-products in non-dedicated surveys.
arxiv
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 +3 more
wiley +1 more source
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 +2 more
wiley +1 more source
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. +14 more
core
, 2014 I discuss and consider the status of observational determinations of the rotation velocities of white dwarf stars via asteroseismology and spectroscopy. While these observations have important implications on our understanding of the angular momentum evolution of stars in their late stages of evolution, more direct methods are sorely needed to ...
openaire +2 more sources
Occurrence and integrated control of major rice diseases in China
New Plant Protection, EarlyView.Rice is constantly under threat from a variety of pathogens. This review highlights the major diseases affecting rice in China, including three fungal diseases, two bacterial diseases, two viral diseases, and one nematode. The review also proposes future directions for an integrated approach to control these significant rice diseases.
Ruyi Wang +13 more
wiley +1 more source
A Search for White Dwarf Companions of Be Stars [PDF]
, 1992 A. J. M. Piters +6 more
openalex +1 more source
Oikos, EarlyView.There has been much recent interest in understanding how abiotic factors such as light, nutrients, and soil moisture affect the composition and biomass of lichen communities. Meanwhile, whether and how ground layer vegetation such as bryophytes and shrubs also influence lichen communities have received much less attention, particularly regarding how ...
Nicolas Fanin +5 more
wiley +1 more source