Results 31 to 40 of about 21,539 (261)

The Toxins of Nemertean Worms

open access: yesToxins, 2019
Most ribbon worms (phylum: Nemertea) are found in marine environments, where they act as predators and scavengers. They are characterized by an eversible proboscis that is used to hunt for prey and thick mucus covering their skin.
Ulf Göransson   +3 more
doaj   +1 more source

Softening of DNA near Melting as Disappearance of an Emergent Property

open access: yes, 2020
Near the melting transition the bending elastic constant, $\kappa$, an emergent property of double-stranded DNA (dsDNA), is shown not to follow the rod-like scaling for small length $N$.
Bhattacharjee, Somendra M.   +1 more
core   +1 more source

Energy required to pinch a DNA plectoneme [PDF]

open access: yes, 2018
DNA supercoiling plays an important role on a biological point of view. One of its consequences at the supra-molecular level is the formation of DNA superhelices named plectonemes.
Barde, Céline   +2 more
core   +5 more sources

Identification of RAG-like transposons in protostomes suggests their ancient bilaterian origin

open access: yesMobile DNA, 2020
Background V(D) J recombination is essential for adaptive immunity in jawed vertebrates and is initiated by the RAG1-RAG2 endonuclease. The RAG1 and RAG2 genes are thought to have evolved from a RAGL (RAG-like) transposon containing convergently-oriented
Eliza C. Martin   +5 more
doaj   +1 more source

Model Analysis Of Worm Gear Pair System Using Finite Element Analysis

open access: yesInternational Journal of Applied Mechanics and Engineering
Spur gear, helical gear, worm gear, and bevel gear are all important components in industrial applications such as vehicles, pushes, conveyors, elevators, bowl mill, rolling mills, ribbon blender, machine tools, aeroplanes, and windmills.
Raghavendra Rajendra Barshikar   +4 more
doaj   +1 more source

Molecular engineering of chiral colloidal liquid crystals using DNA origami

open access: yes, 2017
Establishing precise control over the shape and the interactions of the microscopic building blocks is essential for design of macroscopic soft materials with novel structural, optical and mechanical properties.
Dietz, Hendrik   +5 more
core   +1 more source

Distribution and Phylogenetic Position of the Antarctic Ribbon Worm Heteronemertes longifissa (Nemertea, Pilidiophora)

open access: yesWater, 2023
To date, a total of 23 valid species of heteronemerteans belonging to 15 genera have been recorded in Antarctic and Subantarctic waters. The ribbon worm Heteronemertes longifissa (Hubrecht, 1887) is the only heteronemertean species reported to have bipolar distribution, but this statement is doubtful. The phylogenetic relationships of H.
Alexei V. Chernyshev   +1 more
openaire   +1 more source

Statistical mechanics of triangulated ribbons

open access: yes, 2002
We use computer simulations and scaling arguments to investigate statistical and structural properties of a semiflexible ribbon composed of isosceles triangles.
A.C. Maggs   +35 more
core   +1 more source

Statistical Mechanics of Developable Ribbons

open access: yes, 2010
We investigate the statistical mechanics of long developable ribbons of finite width and very small thickness. The constraint of isometric deformations in these ribbon-like structures that follows from the geometric separation of scales introduces a ...
Giomi, L., Mahadevan, L.
core   +1 more source

Perceptions and acceptability of piloted Taenia solium control and elimination interventions in two endemic communities in eastern Zambia [PDF]

open access: yes, 2020
Infections with Taenia solium cause significant public health and economic losses worldwide. Despite effective control tools, long‐term sustained control/elimination of the parasite has not been demonstrated to date.
Chembensofu, Mwelwa   +15 more
core   +1 more source

Home - About - Disclaimer - Privacy