Results 51 to 60 of about 2,629 (205)

Phospholipase D toxins of brown spider venom convert lysophosphatidylcholine and sphingomyelin to cyclic phosphates. [PDF]

open access: yesPLoS ONE, 2013
Venoms of brown spiders in the genus Loxosceles contain phospholipase D enzyme toxins that can cause severe dermonecrosis and even death in humans.
Daniel M Lajoie   +5 more
doaj   +1 more source

Potency Testing of Venoms and Antivenoms in Embryonated Eggs: An Ethical Alternative to Animal Testing

open access: yesToxins, 2021
Venoms are complex mixtures of biologically active molecules that impact multiple physiological systems. Manufacture of antivenoms (AVs) therefore requires potency testing using in vivo models to ensure AV efficacy. As part of ongoing research to replace
Erin E. Verity   +4 more
doaj   +1 more source

Molecular Spiders with Memory [PDF]

open access: yesPhysical Review E 76, 021121 (2007), 2007
Synthetic bio-molecular spiders with "legs" made of single-stranded segments of DNA can move on a surface which is also covered by single-stranded segments of DNA complementary to the leg DNA. In experimental realizations, when a leg detaches from a segment of the surface for the first time it alters that segment, and legs subsequently bound to these ...
arxiv   +1 more source

Gene and Genome Duplication in Spiders

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In chelicerates whole genome duplications (WGDs) were identified in distinct groups. While there is evidence that Xiphosurans/horseshoe crabs had three rounds of WGD and arachnopulmonates (e.g. spiders and scorpions) had one WGD, in many other arachnid groups no WGD was identified.
Chetan Munegowda   +3 more
wiley   +1 more source

Venom-gland transcriptomics and venom proteomics of the Tibellus oblongus spider

open access: yesScientific Data, 2023
AbstractThe Tibellus oblongus spider is an active hunter that does not spin webs and remains highly underinvestigated in terms of the venom composition. Here, we describe venom glands transcriptome and venom proteome analysis for unveiling the polypeptide composition of Tibellus oblongus spider venom.
Yuliya Korolkova   +7 more
openaire   +3 more sources

Poisonous Spiders: Bites, Symptoms, and Treatment; an Educational Re-view

open access: yesArchives of Academic Emergency Medicine, 2018
More than 40,000 species of spiders have been identified in the world. Spider bites is a common problem among people, however few of them are harmful but delay in treatment can cause death.
Farzad Rahmani   +5 more
doaj   +1 more source

Sparse Image Reconstruction for the SPIDER Optical Interferometric Telescope [PDF]

open access: yesProceedings of the 9th International Conference on Photonics, Optics and Laser Technology, February 11-13, 2021, 2019
The concept of a recently proposed small-scale interferometric optical imaging device, an instrument known as the Segmented Planar Imaging Detector for Electro-optical Reconnaissance (SPIDER), is of great interest for its possible applications in astronomy and space science.
arxiv   +1 more source

Evaluation of GS‐omega/kappa‐Hxtx‐Hv1a and Bt toxins against Bt‐resistant and ‐susceptible strains of Helicoverpa zea (Boddie) and Spodoptera frugiperda (J.E. Smith)

open access: yesPest Management Science, EarlyView.
The addition of 10 μg cm−2 of Cry1Ac to the surface of GS‐omega/kappa‐Hxtx‐Hv1a (ω/κ‐Hv1a) incorporated diet can significantly increase the mortality of Cry‐resistant Helicoverpa zea compared to diets without the Cry1Ac toxin. Abstract BACKGROUND Helicoverpa zea and Spodoptera frugiperda are destructive insect pests of cotton and corn.
Simeon Ross   +8 more
wiley   +1 more source

Can we resolve the taxonomic bias in spider venom research?

open access: yesToxicon: X, 2019
The rate of discovery of new spider species greatly exceeds the rate of spider venom characterisation, leading to an increasing number of species with unstudied venoms.
Volker Herzig   +2 more
doaj  

Initiative Defense against Facial Manipulation [PDF]

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 35(2), 1619-1627, 2021, 2021
Benefiting from the development of generative adversarial networks (GAN), facial manipulation has achieved significant progress in both academia and industry recently. It inspires an increasing number of entertainment applications but also incurs severe threats to individual privacy and even political security meanwhile.
arxiv  

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