Results 41 to 50 of about 227,981 (352)

An Inductive Approach to Strongly Antimagic Labelings of Graphs [PDF]

open access: yesarXiv, 2022
An antimagic labeling for a graph $G$ with $m$ edges is a bijection $f: E(G) \to \{1, 2, \dots, m\}$ so that $\phi_f(u) \neq \phi_f(v)$ holds for any pair of distinct vertices $u, v \in V(G)$, where $\phi_f(x) = \sum_{x \in e} f(e)$. A strongly antimagic labeling is an antimagic labeling with an additional condition: For any $u, v \in V(G)$, if $\deg(u)
arxiv  

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

Maintenance of polymorphism in the orb weaving spider species Agalenatea redii (Araneae, Araneidae) [PDF]

open access: yes, 2012
The maintenance of polymorphism within populations may be the consequence of several elements of species life history such as use of space, activity rhythms, predation, parasitism and reproduction.
François, Olivier   +3 more
core   +2 more sources

Species composition and relative seasonal abundance of spiders from the field and tree layers of the Roodeplaat Dam Nature Reserve

open access: yesKoedoe: African Protected Area Conservation and Science, 1989
A survey of spiders was carried out at the Roodeplaat Dam Nature Reserve near Pretoria. Over a 4-year period 10 270 spiders were collected from grasses, herbs and trees. A total of 82 genera of spiders representing 27 families were recorded.
Anna S. Dippenaar-Schoeman   +2 more
doaj   +1 more source

The sejugal furrow in camel spiders and acariform mites [PDF]

open access: yes, 2012
Camel spiders (Arachnida: Solifugae) are one of the arachnid groups characterised by a prosomal dorsal shield composed of three distinct elements: the pro-, meso- and metapeltidium.
Alberti, Gerd   +2 more
core   +2 more sources

Refining the NaV1.7 pharmacophore of a class of venom‐derived peptide inhibitors via a combination of in silico screening and rational engineering

open access: yesFEBS Letters, EarlyView.
Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma   +8 more
wiley   +1 more source

Rice Stubble Provides Overwintering Microhabitats for Spiders in Winter-Fallowed Rice Fields

open access: yesAgriculture
Spiders are among the predominant predatory arthropods in rice field ecosystems. Although the potential of spiders for controlling pests during the growth stages of rice is well known, few studies have focused on the overwintering habits of spiders after
Jie Sun   +5 more
doaj   +1 more source

Morphological evolution of spiders predicted by pendulum mechanics. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND:Animals have been hypothesized to benefit from pendulum mechanics during suspensory locomotion, in which the potential energy of gravity is converted into kinetic energy according to the energy-conservation principle.
Jordi Moya-Laraño   +4 more
doaj   +1 more source

Stable isotopes of Hawaiian spiders reflect substrate properties along a chronosequence. [PDF]

open access: yes, 2018
The Hawaiian Islands offer a unique opportunity to test how changes in the properties of an isolated ecosystem are propagated through the organisms that occur within that ecosystem.
Dawson, Todd   +2 more
core   +2 more sources

Coacervates Composed of Low‐Molecular‐Weight Compounds– Molecular Design, Stimuli Responsiveness, Confined Reaction

open access: yesAdvanced Biology, EarlyView.
Coacervation driven by liquid‐liquid phase separation (LLPS) of biopolymers has garnered increasing attention in biology since this leads to the formation of membraneless organelles capable of performing essential yet largely unknown functions. This review highlights recent advances in coacervates (artificial condensates) composed of low‐molecular ...
Sayuri L. Higashi, Masato Ikeda
wiley   +1 more source

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