Results 41 to 50 of about 1,797,053 (297)

FATIGUE AND TENSILE FRACTURE SURFACE MORPHOLOGIES OF ADDITIVE MANUFACTURED AUSTENITIC STAINLESS STEEL [PDF]

open access: yesEuropean Journal of Materials Science and Engineering, 2019
Fatigue and tensile fracture surface morphologies of laser additive manufactured (LAM) stainless steel (using powder bed fusion method) were investigated. Both fatigue and tensile fracture surface morphologies were determined using LEO-VP SEM instrument.
Penn RAWN, Vadiraja SUDHAKAR
doaj   +1 more source

A PDE-constrained optimization formulation for discrete fracture network flows [PDF]

open access: yes, 2013
We investigate a new numerical approach for the computation of the 3D flow in a discrete fracture network that does not require a conforming discretization of partial differential equations on complex 3D systems of planar fractures.
Pieraccini, Sandra   +2 more
core   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Fractured instruments in endodontics: understanding incidence, mechanisms, and emerging retrieval techniques

open access: yesLibyan Journal of Medicine
Fractured instrument retrieval remains one of the most challenging aspects of endodontics, with reported incidence rates ranging from 0.3% to 12%. This complication is particularly common with nickel‒titanium (NiTi) rotary files used in curved canals ...
Ali Robaian AlQahtani
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Cyclic Fatigue Resistance and Fractured Fragment Length of Three NiTi Rotary Systems: An In Vitro Comparison

open access: yesOral
Background: The aim of this in vitro study was to compare the cyclic fatigue resistance and fractured fragment length of three nickel-titanium (NiTi) rotary systems of identical tip size and taper (25/.06).
Bircan Kuloğlu   +2 more
doaj   +1 more source

Ethical Foreground and Background in Adult Educator Work

open access: yesNew Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Adult educators work in a complex ethical environment. The very act of contributing to the learning of another is fraught with moral overtones. In this paper we consider the ethical dimensions of adult educator practice by distinguishing the ethical features of the context or ‘background’ of practice from the ethical capabilities and decision ...
Steven Hodge, Sonal Nakar
wiley   +1 more source

Micro-computed tomographic evaluation of canal retreatments performed by undergraduate students using different techniques [PDF]

open access: yesRestorative Dentistry & Endodontics, 2018
ObjectivesThis study evaluated the amount of remaining root canal filling materials after retreatment procedures performed by undergraduate students using manual, rotary, and reciprocating techniques through micro-computed tomographic analysis.
Emmanuel João Nogueira Leal Silva   +5 more
doaj   +1 more source

The impact of fractured endodontic instruments on treatment outcome [PDF]

open access: yesBritish Dental Journal, 2013
Instrument fracture complicates the endodontic procedure by obstructing debridement, delaying treatment completion and affecting the patient's dental experience. When a file fractures there are several treatment options that could be selected, however, the future management should be based on the effect of the fractured instrument on treatment outcome.
M B, McGuigan, C, Louca, H F, Duncan
openaire   +2 more sources

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