Results 81 to 90 of about 306,878 (306)

A Compact, Self‐Recovering Wire Electrode Electrohydrodynamic Pump for High‐Speed McKibben Artificial Muscle Actuation

open access: yesAdvanced Intelligent Systems, EarlyView.
A compact and self‐recovering wire electrode electrohydrodynamic pump achieves high pressure, fast flowrate, and automatic recovery after dielectric discharge breakdowns. The pump delivers twice the power density of previous designs, and when integrated with a McKibben artificial muscle, enables tenfold faster actuation, offering a lightweight, silent,
Amr Marzuq   +7 more
wiley   +1 more source

Fracture resistance of structurally compromised and normal endodontically treated teeth restored with different post systems: An in vitro study

open access: yesDental Research Journal, 2012
Background: With the aim of developing methods that could increase the fracture resistance of structurally compromised endodontically treated teeth, this study was conducted to compare the effect of three esthetic post systems on the fracture resistance ...
Vajihesadat Mortazavi   +5 more
doaj   +1 more source

Genotypes and Phenotypes of Patients With TSPEAR‐Related Disorder: Evidence of a Predominant Dental Phenotype

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT TSPEAR (chr. 21q22.3) encodes a protein involved in tooth development and is predominantly expressed in the enamel knot. Biallelic loss of function variants in TSPEAR cause ectodermal dysplasia, tooth agenesis and sensorineural hearing loss. However, the role of TSPEAR in auditory processes is unclear.
Debora Vergani   +17 more
wiley   +1 more source

Dynamic analysis of double-helical gear system considering effect of oil film among meshing teeth

open access: yesAdvances in Mechanical Engineering, 2020
The oil film among meshing teeth is just like a spring-damping element, and it can dominate the friction and meshing characteristics of the gear pair and influence its dynamic performances further.
Minghu Yin   +4 more
doaj   +1 more source

Functional morphology of the pharyngeal teeth of the ocean sunfish, Mola mola

open access: yesThe Anatomical Record, EarlyView.
Abstract Many fish use a set of pharyngeal jaws in their throat to aid in prey capture and processing, particularly of large or complex prey. In this study—combining dissection, CT scanning, histology, and performance testing—we demonstrate a novel use of pharyngeal teeth in the ocean sunfish (Mola mola), a species for which pharyngeal jaw anatomy had ...
Benjamin Flaum   +3 more
wiley   +1 more source

Discovery of the Principal Cystic Fibrosis Mutation (F508del) in Ancient DNA from Iron Age Europeans [PDF]

open access: yes, 2007
The most common, life-threatening autosomal recessive disease of Europeans and Euro-Americans, cystic fibrosis (CF), occurs predominately in patients with the F508del mutation.1 Although F508del is currently detectable as a single allele in 1/30-1/40 ...
Cedric Le Marechal   +4 more
core   +1 more source

Finite element analysis of feeding in red and gray squirrels (Sciurus vulgaris and Sciurus carolinensis)

open access: yesThe Anatomical Record, EarlyView.
Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley   +1 more source

Retention Of Long-Term Interim Restorations With Sodium Fluoride Enriched Interim Cement [PDF]

open access: yes, 2013
Purpose: Interim fixed dental prostheses, or provisional restorations , are fabricated to restore teeth when definitive prostheses are made indirectly.
Strash, Carolyn
core   +1 more source

Bioimaging of sense organs and the central nervous system in extant fishes and reptiles in situ: A review

open access: yesThe Anatomical Record, EarlyView.
Bioimaging of the sense organs and brain of fishes and reptiles. Left panel: 3D reconstruction of the head and brain of the deep‐sea viperfish Chauliodus sloani following diceCT. Right panel: A 3D reconstruction of a 70‐day‐old embryo head of the bearded dragon Pogona vitticeps following diceCT, showing the position of the segmented brain within the ...
Shaun P. Collin   +9 more
wiley   +1 more source

A New Moray Eel (Muraenidae: Gymnothorax) from Oceanic Islands of the South Pacific [PDF]

open access: yes, 1992
A new moray of the genus Gymnothorax is illustrated and described from 69 individuals taken from oceanic islands and atolls in the subtropical South Pacific Ocean. It differs from all other Gymnothorax except the Atlantic G.
Lavenberg, Robert J.
core  

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