Results 61 to 70 of about 7,450,685 (340)

THE EFFICACY OF A FLUORIDE-CONTAINING ORTHODONTIC PRIMER IN PREVENTING DEMINERALIZATION [PDF]

open access: yes, 2019
Purpose: To evaluate the efficacy of a fluoride-containing orthodontic primer in preventing demineralization adjacent to brackets and compare the quality of enamel on tooth surfaces that received interproximal reduction (IPR).
Ricci, Alyssa G
core   +1 more source

Error Reduction from Stacked Regressions [PDF]

open access: yesarXiv, 2023
Stacking regressions is an ensemble technique that forms linear combinations of different regression estimators to enhance predictive accuracy. The conventional approach uses cross-validation data to generate predictions from the constituent estimators, and least-squares with nonnegativity constraints to learn the combination weights. In this paper, we
arxiv  

Development and Validation of a Spontaneous Smile Assay [PDF]

open access: yes, 2015
IMPORTANCE Smiling can be a voluntary or involuntarymovement. Facial reanimation procedures differ in their ability to restore a spontaneous smile, and an assay designed to evoke and evaluate a spontaneous smile is not available. OBJECTIVE To develop and
Banks, C   +6 more
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Relationship Between Physical Activity and Fatigue Among Nigerian Pregnant Women [PDF]

open access: yesWomen’s Health Bulletin, 2019
Background: Physical inactivity and fatigue are two common phenomena in pregnancy with attendant negative consequences. However, reports on the nexus between physical activity (PA) and fatigue seems to be sparse in literature.
Chidozie Emmanuel Mbada   +8 more
doaj   +1 more source

The influence of Host Galaxies in Type Ia Supernova Cosmology [PDF]

open access: yes, 2017
We use a sample of 1338 spectroscopically confirmed and photometrically classified Type Ia Supernovae (SNe Ia), sourced from the CSP, CfA, SDSS-II, and SNLS supernova samples, to examine the relationships between SNe Ia and the galaxies that host them.
arxiv   +1 more source

Computing Limb Darkening Coefficients from Stellar Atmosphere Models [PDF]

open access: yesAstrophys.J.656:483-492,2007, 2006
We explore the sensitivity of limb darkening coefficients computed from stellar atmosphere models to different least-squares fitting methods. We demonstrate that conventional methods are strongly biased to fitting the stellar limb. Our suggested method of fitting by minimizing the radially integrated squared residual yields improved fits with better ...
arxiv   +1 more source

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

Treatment of various degrees of white spot lesions using resin infiltration—in vitro study

open access: yesProgress in Orthodontics, 2018
Background This study was conducted to evaluate the efficiency of resin infiltration to improve the color of white spot lesions (WSLs) and to estimate the effect of different numbers of etching and resin infiltrant applications on the color change of ...
Bassant A. Abbas   +2 more
doaj   +1 more source

The gastric microbiota in patients with Crohn’s disease; a preliminary study

open access: yesScientific Reports, 2021
The gastric microbiota in Crohn’s disease (CD) has not been studied. The purpose of the study was to evaluate differences of stomach microbiota between CD patients and controls.
Jerzy Ostrowski   +12 more
doaj   +1 more source

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