Search results for "BITS"
showing 10 items of 818 documents
Influence of platelet-derived growth factor on osseous remodeling properties of a variable-thread tapered dental implant in vivo
2016
Objectives To evaluate the effect of platelet-derived growth factor (rhPDGF-BB) on the promotion of osteogenesis around variable-thread tapered implants in an animal model. Material and methods Twenty-four variable-thread tapered implants were inserted in the tibia of 12 rabbits. Twelve sites received additional rhPDGF-BB released from a presoaked xenogenic bone block that was fixed supracrestally. Primary outcomes were bone-to-implant contact (BIC; in % ± SD) and percentage of medullary bone fill around the implants (PMF; in % ± SD) after 3 weeks (PDGF n = 6, no PDGF n = 6) and 6 weeks (PDGF n = 6, no PDGF n = 6). Results Considerable crestal and medullary bone remodeling could be found ar…
The sensory and nutritional experience of parents guide offsprings' feeding behavior
2016
Le comportement alimentaire est régulé par des facteurs physiologiques intrinsèques et est largement influencé par l’environnement culturel. Une prise alimentaire excessive et un mode de vie trop sédentaire sont les principales raisons de l’épidémie mondiale d’obésité. Si l’influence du contexte familial sur les habitudes alimentaires ne fait aucun doute, le fait que l’état nutritionnel, métabolique et hormonal des parents avant la conception, puis de la mère pendant la gestation et l’allaitement puisse influencer le comportement alimentaire futur de l’enfant est un concept novateur qui ouvre la voie à des mesures de prévention. Au cours des dernières décennies, des travaux sur des cohortes…
Odorant Metabolism Analysis by an Automated Ex Vivo Headspace Gas-Chromatography Method
2015
International audience; In the olfactory epithelium (OE), odorant metabolizing enzymes have the dual function of volatile component detoxification and active clearance of odorants from the perireceptor environment to respectively maintain the integrity of the tissues and the sensitivity of the detection. Although emphasized by recent studies, this enzymatic mechanism is poorly documented in mammals. Thus, olfactory metabolism has been characterized mainly in vitro and for a limited number of odorants. The automated ex vivo headspace gas-chromatography method that was developed here was validated to account for odorant olfactory metabolism. This method easily permits the measurement of the f…
Hippocampal theta phase-contingent memory retrieval in delay and trace eyeblink conditioning
2017
Hippocampal theta oscillations (3-12Hz) play a prominent role in learning. It has been suggested that encoding and retrieval of memories are supported by different phases of the theta cycle. Our previous study on trace eyeblink conditioning in rabbits suggests that the timing of the conditioned stimulus (CS) in relation to theta phase affects encoding but not retrieval of the memory trace. Here, we directly tested the effects of hippocampal theta phase on memory retrieval in two experiments conducted on adult female New Zealand White rabbits. In Experiment 1, animals were trained in trace eyeblink conditioning followed by extinction, and memory retrieval was tested by presenting the CS at t…
Questioning and advising in health counselling: results from a study of Finnish nurse counsellors
2000
The purpose of this study is to describe the main ways in which nurse coun sellors' questions and advice are initiated, received, accepted or refused during health counselling. Thirty-eight health counselling situations were videotaped in a Finnish hospital and the data were examined using adapted conversation analysis. We found two types of health counselling models, which fluctuated during the encounters. Empowerment, 'reciprocal' health counselling began with the nurse counsellors' reflective questioning which took the form of check up questions about the patient's condition, followed by questions about the patient's feelings. The patients' answers guided the conversation. 'Non-recipro c…
Molecular characterization of Treponema pallidum subsp. pallidum in Switzerland and France with a new multilocus sequence typing scheme
2018
Syphilis is an important public health problem and an increasing incidence has been noted in recent years. Characterization of strain diversity through molecular data plays a critical role in the epidemiological understanding of this re-emergence. We here propose a new high-resolution multilocus sequence typing (MLST) scheme for Treponema pallidum subsp. pallidum (TPA). We analyzed 30 complete and draft TPA genomes obtained directly from clinical samples or from rabbit propagated strains to identify suitable typing loci and tested the new scheme on 120 clinical samples collected in Switzerland and France. Our analyses yielded three loci with high discriminatory power: TP0136, TP0548, and TP…
Validation of eating habits subscale in children (sehan: spanish version) from 10 to 12 years.
2015
Introducción: Es necesario identificar hábitos alimentarios de riesgo para frenar el aumento de la prevalencia del sobrepeso infantil y garantizar el derecho a la salud del niño. Para ello, se requiere el uso de instrumentos validados en contextos escolares y familiares. Objetivo: Validar una Subescala de Hábitos Alimentarios en Niños (SEHAN), para su uso en escolares españoles entre 10 y 12 años. Método: Las propiedades psicométricas de la SEHAN se estudiaron en 3 apartados: Validez y lógica del instrumento, fiabilidad y consistencia interna, y validez criterial. En el primer apartado participó un grupo de 5 expertos, que valoró la suficiencia, claridad, coherencia y relevancia del instrum…
Existence de points fixes enlacés à une orbite périodique d'un homéomorphisme du plan
1992
Let f be an orientation-preserving homeomorphism of the plane such that f-Id is contracting. Under these hypotheses, we establish the existence, for every periodic orbit, of a fixed point which has nonzero linking number with this periodic orbit.
Safety Evaluation of α-Lipoic Acid Supplementation: A Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Studies
2020
Alpha-lipoic acid (ALA) is a natural short-chain fatty acid that has attracted great attention in recent years as an antioxidant molecule. However, some concerns have been recently raised regarding its safety profile. To address the issue, we aimed to assess ALA safety profile through a systematic review of the literature and a meta-analysis of the available randomized placebo-controlled clinical studies. The literature search included EMBASE, PubMed Medline, SCOPUS, Google Scholar, and ISI Web of Science by Clarivate databases up to 15th August 2020. Data were pooled from 71 clinical studies, comprising 155 treatment arms, which included 4749 subjects with 2558 subjects treated with ALA an…
La cultura escolar familiar i l'aprenentatge dels problemes socials
2022
La Geografia Humanística i també la de la Percepció s’han preocupat per la importància de les emocions i els filtres que condicionen la relació de les persones amb la realitat viscuda. La realitat dels centres escolars i de les aules són un espai significatiu per la creació d’una actitud en un alumnat que, en interpretar la realitat escolar, desenvolupa comportaments que condicionen el seu accés als elements culturals bàsics. El present treball s’interessa per les possibilitats del professorat de modular les actituds de l’alumnat definit com a perifèric per l’Administració, a través de la manera d’entendre el seu treball i de la forma com presenten els continguts a l’alumnat, per millorar l…