Results 51 to 60 of about 156,838 (381)

HCV epidemiology in high-risk groups and the risk of reinfection [PDF]

open access: yes, 2016
Injecting risk behaviours among people who inject drugs (PWID) and high-risk sexual practices among men who have sex with men (MSM) are important routes of hepatitis C virus (HCV) transmission.
Dalgard, Olav   +6 more
core   +2 more sources

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu   +14 more
wiley   +1 more source

In vitro evaluation of efficacy of different rotary instrument systems for gutta percha removal during root canal retreatment [PDF]

open access: yes, 2016
Background: Complete removal of old filling material during root canal retreatment is fundamental for predictable cleaning and shaping of canal anatomy.
Ahlawat, Jyoti   +5 more
core   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

open access: yesAdvanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon   +10 more
wiley   +1 more source

Assessment of Factors Affecting the Success of Endodontic Retreatment Procedures

open access: yesJournal of Pharmacy and Bioallied Sciences
Background: Endodontic retreatment is crucial for preserving dental health but is influenced by various factors. Objective: This research aimed to assess factors affecting the success of endodontic retreatment procedures.
Mubashir Baig Mirza   +6 more
doaj   +1 more source

RETREATMENT WITH SURFACTANT IN VERY LOW BIRTH WEIGHT PRETERM INFANTS: RISK PREDICTORS AND THEIR INFLUENCE ON NEONATAL OUTCOMES

open access: yesRevista Paulista de Pediatria, 2020
Objective: To assess clinical predictors and outcomes associated to the need for surfactant retreatment in preterm infants. Methods: Retrospective cohort study, including very low birth weight preterm infants from January 2006 to December 2015 who ...
Walusa Assad Gonçalves Ferri   +5 more
doaj   +2 more sources

A Microfluidic Digital Shutter of Liquid–Liquid Interface for Fabrication of Multifaceted Hydrogel Microfiber Structure

open access: yesAdvanced Science, EarlyView.
A programmable passive digital shutter based on multiphase liquid–liquid interface dynamics is introduced for precise fabrication of hydrogel microfibers. By modulating the shutter operation, microfibers with tunable geometry—including linear, helical, tadpole‐like, and spherical forms—are produced.
Dongrui Zhang   +14 more
wiley   +1 more source

Retreat

open access: yesAdvances in Nursing Science, 1988
Larry Goolsby wrote this article after attending a retreat at the Nashville Zen Center. The article was exerpted by permission from "Paying Attention", A Publication of the Very Center in Cookeville, TN., Bob Harwood ...
  +5 more sources

Risk Factor for Retreatment Episode on Admission Among TB Patients With Schizophrenia

open access: yesFrontiers in Psychiatry, 2021
Background: The clinical characteristics of patients with tuberculosis (TB) and schizophrenia remain largely unknown. Furthermore, TB retreatment is associated with a poor outcome.
Hai-Rong Wang   +7 more
doaj   +1 more source

Outcomes of Primary Endodontic Therapy Provided by Endodontic Specialists Compared to Other Providers [PDF]

open access: yes, 2016
Introduction: The objective of this study was to compare the outcomes of initial non-surgical root canal therapy (NSRCT) for different tooth types provided by both endodontists and other providers.
Burry, Jacob
core   +1 more source

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