Ms Black is a 60-year-old widow with no children, who has severe rheumatoid arthritis and uses a wheelchair. She has pulmonary disease and requires continuous oxygen therapy. For the past two years her 90-year-old mother, who has dementia, has lived with her.

Wireless Sensor Network (WSN) is a promising approach that developed for wide range of applications due to its low installation cost. However, the nodes in WSN are susceptible different security threats, because these located hostile or harsh environments. Moreover, an inappropriate selection routing path affects data delivery WSN. The important goal this paper obtain secure transmission while ...

Abstract We report the discovery of two Black Widow millisecond pulsars in globular cluster (GC) M28 with MeerKAT telescope. PSR J1824−2452M (M28M) is a 4.78 ms pulsar 5.82 hr orbit, and J1824−2452N (M28N) 3.35 4.76 orbit. Both have dispersion measures near 119.30 pc cm −3 low-mass companion stars (∼0.01–0.03 M ⊙ ) that do not cause strong radio eclipses or orbital variations. Including these s...

Venoms are chemically complex secretions typically comprising numerous proteins and peptides with varied physiological activities. Functional characterization of venom proteins has important biomedical applications, including the identification of drug leads or probes for cellular receptors. Spiders are the most species rich clade of venomous organisms, but the venoms of only a few species are ...

The G-protein-coupled receptor CIRL1/latrophilin-1 (CL1) and the type-1 membrane proteins neurexins represent distinct neuronal cell adhesion molecules that exhibit no similarities except for one common function: both proteins are receptors for α-latrotoxin, a component of black widow spider venom that induces massive neurotransmitter release at synapses. Unexpectedly, we have now identified a ...

Latrodectus tredecimguttatus is a kind of highly venomous black widow spider, with toxicity coming from not only venomous glands but also other parts of its body as well as newborn spiderlings and eggs. Up to date, although L. tredecimguttatus eggs have been demonstrated to be rich in proteinaceous toxins, there is no systematic investigation on such active components at transcriptome level. In...