Results 71 to 80 of about 96,778 (199)
Reconstruction of spider system's observables from orbital period modulations via the Applegate mechanism [PDF]
Redback and black widow pulsars are two classes of peculiar binary systems characterized by very short orbital periods, very low mass companions, and, in several cases, regular eclipses in their pulsed radio signal. Long-term timing revealed systematic but unpredictable variations in the orbital period, which can most likely be explained by the so ...
arxiv +1 more source
ABSTRACT Background Upper gastrointestinal bleeding (UGIB) is one of the most common medical emergencies. Currently, there is a paucity of data on the clinical profile and outcome of UGIB in resource‐limited settings. Objective We aim to describe the etiology and outcomes of the patients who presented to the Emergency Department (ED) of a tertiary ...
Nyantakyi Adu‐Darko+6 more
wiley +1 more source
Redback/Black Widow Systems as progenitors of the highest neutron star masses and low-mass Black Holes [PDF]
We suggest in this note that "spider" systems are the naturally expected progenitors of the highest neutron star masses, and possibly low-mass black holes, based on their long-term evolutionary features and actual mass measurements.
arxiv
"Spider" Millisecond Pulsar Binaries as Potential TeV Emitters [PDF]
Pulsar winds interacting with sources of external pressure are well-established as efficient and prolific TeV accelerators in our Galaxy. Yet, enabled by observations from Fermi-LAT, a growing class of non-accreting pulsars in binaries has emerged and these are likely to become apparent as TeV emitters in the CTA era.
arxiv
To vegetable: Seasons that require us
Abstract Domestication of cereals tracks with the natural life cycle of plants in the Poaceae family, but vegetables represent a different modality and often possess a truncated life cycle. The evolution of vegetable biodiversity required curatorial work each growing season that differed in important ways from curation of grains or perennial crops ...
I. L. Goldman
wiley +1 more source
Poor widows! Three out of four women survive their husbands. In some cultures remarriage is taboo. In other cultures the widow is (was) burned on the funeral pyre of her husband. Yet the word has made a major contribution to the language.
Campbell, John
core +1 more source
The venom gland transcriptome of Latrodectus tredecimguttatus revealed by deep sequencing and cDNA library analysis. [PDF]
Latrodectus tredecimguttatus, commonly known as black widow spider, is well known for its dangerous bite. Although its venom has been characterized extensively, some fundamental questions about its molecular composition remain unanswered.
Quanze He+5 more
doaj +1 more source
Timing of Eight Binary Millisecond Pulsars Found with Arecibo in Fermi-LAT Unidentified Sources [PDF]
We present timing solutions for eight binary millisecond pulsars (MSPs) discovered by searching unidentified Fermi-LAT source positions with the 327 MHz receiver of the Arecibo 305-m radio telescope. Five of the pulsars are "spiders" with orbital periods shorter than 8.1 h. Three of these are in "black widow" systems (with degenerate companions of 0.02-
arxiv +1 more source
Spider Invasion Across the Galaxy [PDF]
The nature of the exotic stellar corpses which reincarnate by consuming their companion is reviewed. Apart from sucking life from their partners, they are actually eating the doomed companions away by their deadly and powerful particle/radiation beams.
Chung-Yue Hui
doaj +1 more source
Abstract This article explores a series of newspaper articles from 1908, describing Miss C. – a Copenhagen woman who, apparently, hosted carnal orgies in which she ‘converted’ young women into sapphism. While most historical sources only hint at female same‐sex relationships or describe women's romantic (platonic) feelings for one another, these ...
Rikke Andreassen
wiley +1 more source