Results 31 to 40 of about 6,932,912 (280)

CYCLIC FATIGUE RESISTANCE OF CONTINUOUS ROTATION VERSUS RECIPROCATING GLIDE PATH NICKEL TITANIUM FILES IN ARTIFICIAL S-SHAPED CANALS [PDF]

open access: yesAlexandria Dental Journal, 2022
Introduction: A secure reproducible glide path is an essential prerequisite for introducing “Rotary nickel titanium” files into a canal. With the rise of engine driven instruments over the past decade, the creation of a Glide path “GP” using “Rotary ...
Amr Abdallah   +2 more
doaj   +1 more source

Effects of plastic film mulching and legume rotation on soil nutrients and microbial communities in the Loess Plateau of China

open access: yesChemical and Biological Technologies in Agriculture, 2023
Background Potato (Solanum tuberosum L.) continuous cropping causes the decrease of tuber yield, deterioration of quality and soil degradation in the semi-arid area.
Mingfu Shi   +8 more
doaj   +1 more source

Continuous Rotation of Achiral Nematic Liquid Crystal Droplets Driven by Heat Flux. [PDF]

open access: yesPhysical Review Letters, 2016
Suspended droplets of cholesteric (chiral nematic) liquid crystals spontaneously rotate in the presence of a heat flux due to a temperature gradient, a phenomenon known as the Lehmann effect.
J. Ignés-Mullol, G. Poy, P. Oswald
semanticscholar   +1 more source

Collection of Continuous Rotation MicroED Data from Ion Beam-Milled Crystals of Any Size

open access: yesbioRxiv, 2018
Microcrystal electron diffraction (MicroED) allows for macromolecular structure solution from nanocrystals. To create crystals of suitable size for MicroED data collection, sample preparation typically involves sonication or pipetting a slurry of ...
M. Martynowycz   +4 more
semanticscholar   +1 more source

Genome scan of Diabrotica virgifera virgifera for genetic variation associated with crop rotation tolerance [PDF]

open access: yes, 2007
Crop rotation has been a valuable technique for control of Diabrotica virgifera virgifera for almost a century. However, during the last two decades, crop rotation has ceased to be effective in an expanding area of the US corn belt.
Sappington, Thomas   +15 more
core   +1 more source

Quantity and Nature of Water-Extractable Organic Matter from Sandy Loam Soils with Potato Cropping Management

open access: yesAgricultural & Environmental Letters, 2016
This work evaluated the level and nature of water-extractable soil organic matter (WEOM) from a 6-yr potato ( L.) crop rotation field experiment. The content of WEOM was higher in continuous potato soils than in the 2-yr and 3-yr crop rotation soils ...
Zhongqi He   +5 more
doaj   +1 more source

A comparative evaluation of cyclic fatigue resistance and separated tip length of reciprocating versus continuous endodontic file systems: An in vitro study

open access: yesSaudi Endodontic Journal
Introduction: Nickel-titanium files are widely used in endodontics due to their clinical effectiveness. Their application may mitigate risk, enhance precision, and conserve time during root canal therapy.
Riyadh Alroomy   +9 more
doaj   +1 more source

Effect of continuous rotary and reciprocating motions on cyclic fatigue resistance of two different nickel–titanium endodontic files: An in vitro study

open access: yesEndodontology
Aim: The objectives of this study were to evaluate and compare the cyclic fatigue resistance (CFR) of TruNatomy (TRN) and WaveOne Gold (WOG) nickel–titanium files subjected to continuous rotary and reciprocating motions. Methods: Forty files were divided
Rashmeet Nagpal   +5 more
doaj   +1 more source

Elucidation of the elusive structure and formula of the active pharmaceutical ingredient bismuth subgallate by continuous rotation electron diffraction.

open access: yesChemical Communications, 2017
Bismuth subgallate has been used in wound and gastrointestinal therapy for over a century. The combination of continuous rotation electron diffraction and sample cooling finally revealed its structure as a coordination polymer.
Yunchen Wang   +6 more
semanticscholar   +1 more source

Assessing Dentinal Microcracks using Micro-CT after Root Canal Preparation with Different Rotary Endodontic File Systems

open access: yesJournal of Pharmacy and Bioallied Sciences
Objective: This study aimed to evaluate the propagation of dentinal microcracks in the mesiobuccal (MB) and mesiolingual (ML) canals following root canal preparation using two different rotary endodontic file systems, TruNatomy (continuous rotation) and ...
Mohammed Mustafa   +3 more
doaj   +1 more source

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