Search results for "Key words"
showing 10 items of 43 documents
Is karate effective in improving postural control?
2012
Background: Performing complex motor skills, such as the ones performed by karate athletes, requires a great sense of balance. Because the posturo-kinetic performance seems to be improved by sport practice, especially by sports involving a lot of posturokinetic activities, the aim of this review was to critically analyse the scientific literature in order to appraise whether any positive correlation between karate and improved postural control is scientifically supported. Material/Methods: The online search engines Scirus and Medline were used for generating the data. A comprehensive literature search was conducted based on the following keywords: “karate”, “postural control” and “body sway…
Central Serotonin2C Receptor: From Physiology to Pathology
2006
Since the 1950s, when serotonin (5-HT) was discovered in the mammalian central nervous system (CNS), an enormous amount of experimental evidence has revealed the pivotal role of this biogenic amine in a number of cognitive and behavioural functions. Although 5-HT is synthesized by a small group of neurons within the raphe nuclei of the brain stem, almost all parts of the CNS receive serotonergic projections. Furthermore, the importance of 5-HT modulation and the fine-tuning of its action is underlined by the large number of 5-HT binding sites found in the CNS. Hitherto, up to 15 different 5-HT receptors subtypes have been identified. This review was undertaken to summarize the work that has…
Severe beak deformity in Melopsittacus undulatus caused by Knemidocoptes pilae
2014
An outbreak of knemidocoptic mange caused by Knemidocoptes pilae is described in caged Australian budgerigars (Melopsittacus undulatus) in a public park in L´Eliana (Valencia, Spain). Five individuals (5 out of 70) displayed severe malformation of the beak, with the rhamphotheca, rhinotheca, and gnathotheca affected and a slight lateral deviation of the jawbone, which did not, however, impede feeding or grooming.
La cohesió léxica en seqüències narratives.
2008
Aquesta tesi doctoral s'ocupa de les operacions discursivocognitivesd'establiment de referents i de represa lèxica de la referència en textos escritsd'estudiants de secundària.Partim d'un corpus doble constituït per seqüències narratives produïdes, d'unabanda, per alumnes de quart curs d'E.S.O (aprenents) i, d'altra banda, per periodistescinematogràfics (experts), que ens proporcionen el corpus de control i, doncs, la base decomparació de les produccions dels aprenents.En primer lloc, hem analitzat els diversos tipus d'estructures nominals ipredicatives que vehiculen la introducció dels referents discursius. En segon lloc, enshem ocupat de la represa lèxica dels referents mitjançant la repe…
Governance of Glocal Tourism
2014
Governance of Glocal Tourism The basic theme of this paper is to reconcile two aspects of tourism, globalization and local identity, which equally fundamental processes in society in the early twenty-first century. Globalization, on the one hand, everything seems to connect and flatten everything, but on the other hand, develops an infinite range of possible paths for different groups or individual tourists. The sense of the local plays and defeats from within globalization. Tourist of globalization poses a direct relationship with the places visited, with the area and its historical memory, its culture and its environment, showing a demand for authenticity, uniqueness and spontaneity of pr…
Comportamento bioagronomici di genotipi di triticale in due ambienti mediterranei. Bioagronomic behaviour of triticale in two Mediterranean Environme…
2009
Tra i cereali minori il triticale, occupa un posto di primaria importanza sia per gli aspetti agronomici e sia per gli usi possibili della coltura. L’ibrido, nato dall’esigenza di associare in un individuo alle buone caratteristiche produttive dei frumenti, la resistenza della segale potrebbe rappresentare, infatti, una valida alternativa colturale negli ordinamenti asciutti degli ambienti marginali. L’intenso lavoro di miglioramento genetico ha consentito la costituzione di varietà, migliorate sia per l’utilizzazione animale che per l’alimentazione umana. Inoltre, l’accresciuta consapevolezza dei consumatori, degli effetti benefici derivanti dalla diversificazione dei cereali nella dieta, …
Day-ahead forecasting for photovoltaic power using artificial neural networks ensembles
2016
Solar photovoltaic plants power output forecasting using machine learning techniques can be of a great advantage to energy producers when they are implemented with day-ahead energy market data. In this work a model was developed using a supervised learning algorithm of multilayer perceptron feedforward artificial neural network to predict the next twenty-four hours (day-ahead) power of a solar facility using fetched weather forecast of the following day. Each set of tested network configuration was trained by the historical power output of the plant as a target. For each configuration, one hundred networks ensembles was averaged to give the ability to generalize a better forecast. The train…
Inhibition of human immunodeficiency virus-1 infection by human conglutinin-like protein: in vitro studies.
1992
The lectin-like protein analogous to bovine conglutinin was purified from human serum. The carbohydrate-binding ability of conglutinin-like protein was inhibited by D-mannose, N-acetylglucosamine and L-fucose as well as by mannan-containing oligosaccharides. By applying a lectin-based ELISA system it was demonstrated that conglutinin-like protein binds to human immunodeficiency virus-1 (HIV-1) glycoprotein 120 (gp120) via its carbohydrate binding site. In vitro experiments with T-lymphoblastoid CEM cells revealed that conglutinin-like protein abolishes infection by HIV-1; a 50% cytoprotective concentration of 23.9 micrograms/ml was measured. These findings demonstrate that human conglutinin…
A further analysis of secretory structures of some taxa belonging to the genus Hypericum (Clusiaceae) in relation to the leaf vascular pattern
2014
This work extends knowledge about the distribution of secretory structures (black nodules, translucent glands, and type A and B secretory canals) to other species of the genus Hypericum L., as only H. perforatum L. appears to have been widely investigated. Moreover, the current study was extended to include leaf vascular patterns. In the species studied, a possible correlation between the presence of black nodules and a particular biological form, that of hemicryptophytes scapose perennials such as H. perfoliatum L., H. perforatum L., H. pubescens Boiss., H. tetrapterum Fr., and H. triquetrifolium Turra, was noted. These black nodules are not present in H. androsaemum L. and H. hircinum L.,…
Relation of fruit color, elongation, hardness, and volume to the infestation of olive cultivars by the olive fruit fly, Bactrocera oleae
2012
The susceptibility of olive cultivars to the olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae), has seldom been studied. This article examines factors associated with olive fruit fly infestation of 16 commonly planted Sicilian olive cultivars. Total infestation data were simultaneously correlated with categorical and quantitative factors using ordinal logistic regression. When all factors were included in the analysis, year, sampling date, cultivar, and fruit color were highly significant, but the quantitative factors fruit volume, fruit elongation, and fruit hardness were not. When the analysis was repeated excluding cultivar, all quantitative factors were significant, and e…