Search results for "Canoa"
showing 10 items of 14 documents
Solid and Semisolid Innovative Formulations Containing Miconazole-Loaded Solid Lipid Microparticles to Promote Drug Entrapment into the Buccal Mucosa
2021
The currently available antifungal therapy for oral candidiasis (OC) has various limita- tions restricting its clinical use, such as short retention time, suboptimal drug concentration and low patients compliance. These issues could be overcome using micro or nanotechnology. In par- ticular, solid lipid microparticles (SLMs) resulted as a particularly promising penetration enhancer carrier for lipophilic drugs, such as the antifungal miconazole (MCZ). Based on these considera- tions, cetyl decanoate (here synthesized without the use of metal catalysis) was employed together with 1-hexadecanol to prepare MCZ-loaded SLMs. These resulted in a powder composed of 45–300 µm diameter solid spheric…
Tourisme Sportif et Identités : Les pratiquants de canoë en Zambie
2013
Cet article repose sur une enquête sur les usages sociaux du canoë en Zambie. Il a pour objectif de décrire les caractéristiques des relations sociales qui se nouent entre étrangers et « populations locales ». Si l’organisation de l’activité recouvre une visée touristique pour nombre de pays africains, touristes et habitants entrent peu en interaction en dehors de la pratique des loisirs. Pour étudier l’identité, il s’agit de caractériser la genèse du tour en canoë afin de saisir l’émergence de modes d’appréhension de l’Autre dans le cadre du loisir en Zambie. La singularité des relations sociales entre populations occidentales et africaines pose la question de la différence culturelle, au …
Nandrolone decanoate interferes with testosterone biosynthesis altering blood-testis barrier components
2017
Abstract The aim of this study was to investigate whether nandrolone decanoate (ND) use affects testosterone production and testicular morphology in a model of trained and sedentary mice. A group of mice underwent endurance training while another set led a sedentary lifestyle and were freely mobile within cages. All experimental groups were treated with either ND or peanut oil at different doses for 6 weeks. Testosterone serum levels were measured via liquid chromatography–mass spectrometry. Western blot analysis and quantitative real‐time PCR were utilized to determine gene and protein expression levels of the primary enzymes implicated in testosterone biosynthesis and gene expression leve…
Nandrolone decanoate interferes on testosterone biosynthesis and alters blood-testis barrier.
2018
Nandrolone decanoate (ND) is a synthetic testosterone analogue considered one of the most commonly abused anabolic androgenic steroids by adolescents and athletes. ND is alleged to promote an increase in muscle mass and improves both physical appearance and sporting performance, but ND abuse is often associated with serious adverse effects, interfering with the endocrine system and the reproductive system. In a previous study, we demonstrated that ND treatment of Leydig cells interferes with the biosynthesis of testosterone in a dose increase-dependent fashion (1). As a consequence of the results obtained in vitro, in this study an animal model was utilized to better understand the side eff…
Desarrollo y caracterización de nuevos nanobiocomposites con propiedades mejoradas mediante varios métodos de procesado de interés en envasado de ali…
2015
El presente trabajo tiene como objetivo mejorar las propiedades de matrices biopoliméricas para su uso en aplicaciones de envasado de alimentos mediante el desarrollo de nanobiocompuestos utilizando diferentes metodologías de procesado o estrategias de incorporación de materiales nanoestructurados en el interior de las matrices biopoliméricas. Dos estrategias de incorporación fueron empleadas. La primera de ellas estaba basada en una pre-incorporación de los aditivos nanoestructurados, también llamados nanoaditivos, en oligómeros de ácido láctico mediante tecnologías de polimerización in situ (específicamente policondensación), dando lugar a masterbatches que, posteriormente, se mezclaban c…
Limitations of rule 23 on the allocation of costs of teaching and research staff in Spanish public universities
2020
In March 2011, the model of cost accounting for Spanish public universities was approved and published based on the CANOA project of the Ministry of Education, Culture and Sport (MECD 2011). This paper focuses on rule 23 contained in chapter 8 of this document, where which regulates the treatment of the teaching and research dedication of university staff (PDI) and the allocation of corresponding cost to teaching, research and management. A reflection is made on certain points where there is the possibility of making different interpretations or in which satisfactory results are not obtained, with the consequences that this entails in the quality of the information and in the comparisons be…
Assessment wine aroma persistence by using an in vivo PTR-ToF-MS approach and its relationship with salivary parameters
2019
To better understand wine aroma persistence, the nasal cavity of nine volunteers was monitored by Proton Transfer Reaction-Time of Flight-Mass Spectrometry (PTR-ToF-MS) after they rinsed their mouths with three rosé wines (one control and the same wine supplemented with two tannin extracts) during four minutes. Wines were aromatised with a mixture of five target aroma compounds. Results showed that wine aroma persistence was highly compound-dependent: while esters disappeared very fast, other compounds such as linalool remained in the oral cavity for longer times after wine expectoration. A low effect of tannins (at 50 mg/L) on nasal cavity parameters was observed, with the exception for th…
Effects of oenological tannins on aroma release and perception of oxidized and non-oxidized red wine: A dynamic real-time in-vivo study coupling sens…
2022
International audience; Addition of oenological tannins claims to have a positive impact on wine stability, protection from oxidation and likely sensory persistence. However, their role on red wine aroma during oxidation is controversial. The present study aims at investigating the effect of addition of oenological tannins on wine flavour (mainly aroma) before and after air exposure. Temporal Dominance of Sensations, a dynamic sensory evaluation, was coupled with a dynamic chemical measurement (nosespace analysis) using a Proton-Transfer-Reaction Mass-Spectrometer connected to the nasal cavity of 17 assessors. Results showed that the oxidation of a non-oaked Pinot Noir red wine decreases th…
Lack of effects of anabolic-androgenic steroids on locomotor activity in intact male mice.
1999
Anabolic-androgenic steroid abusers have reported hyperactivity euphoria, and decreased fatigue, among other behavioral effects. It has been suggested that the effects of these substances on the central nervous system are similar to those of psychostimulants; however, the influence of steroids on general locomotor activity in laboratory animals is not well understood, especially how noncastrated male rodents are affected. In this study, spontaneous locomotor activity displayed by gonadally intact male mice submitted to several experimental conditions was analyzed. Different housing conditions (individual or cohabiting with a female), diverse steroids (testosterone propionate, nandrolone de…
A “participação africana” num desporto olímpico: Lutas espaciais e questões de nacionalidade
2016
Cet article analyse les stratégies de reconnaissance d’une discipline olympique : le canoë de slalom. Il interroge en particulier les processus de diffusion de ce sport en Afrique en étudiant précisément sa place en tant que discipline au sein du mouvement olympique. Mais comment la diffusion d’un sport parmi les pays africains peut-elle cristalliser des enjeux nationaux ? Pour comprendre la complexité de cet objet, le remaniement des aires culturelles issues du joug des empires coloniaux est interrogé. Il s’agit d’inscrire les perceptions de la participation olympique dans les rivalités où elles s’inscrivent depuis les Indépendances. L’enquête restitue l’apport de la nationalité comme crit…