Search results for "Habit"
showing 10 items of 1816 documents
Diferencias en la eficacia del tratamiento y en la calidad de vida de pacientes con acné moderado y severo comparando distintas dosis de isotretinoína
2021
El acné es una enfermedad inflamatoria multifactorial de la unidad pilosebácea, con un impacto importante en la calidad de vida de las personas que lo padecen. Entre las distintas opciones terapéuticas disponibles para el manejo de las formas moderadas y severas de acné, la más resolutiva es la isotretinoína oral. Habitualmente se manejan dosis de isotretinoína superiores a 0,5 mg/kg/día, pero en los últimos años se están valorando nuevos esquemas terapéuticos utilizando como alternativa las dosis bajas de isotretinoína, para reducir el riesgo de los efectos secundarios asociados a los retinoides orales. Objetivos: El objetivo de este estudio es evaluar si existen diferencias en relación a …
La décision spatiale, entre choix individuels et références collectives
2012
La consommation d'énergie des ménages en France
2011
Le rapport analyse les dépenses d'énergie domestique des ménages à partir des enquêtes Logement de l'INSEE : étude en économétrie de données de panel (chapitre 1), vulnérabilité énergétique (explication du froid ressenti dans le logement, chapitre 2), dépense énergétique, consommation d'énergie et émissions de CO2 (chapitre 3), émissions territorialisées de CO2 par les logements et les navettes (domicile - travail ou école) (chapitre 4). Le rôle du climat hivernal est pris en compte dans chaque chapitre.
Ecological Stoichiometry of Bumblebee Castes, Sexes, and Age Groups
2021
Ecological stoichiometry is important for revealing how the composition of chemical elements of organisms is influenced by their physiological functions and ecology. In this study, we investigated the elemental body composition of queens, workers, and males of the bumblebee Bombus terrestris, an important pollinator throughout Eurasia, North America, and northern Africa. Our results showed that body elemental content differs among B. terrestris castes. Young queens and workers had higher body nitrogen concentration than ovipositing queens and males, while castes did not differ significantly in their body carbon concentration. Furthermore, the carbon-to-nitrogen ratio was higher in ovipositi…
Osiedle miejskie środowiskiem potencjalnych działań i interakcji społeczno-kulturowych i wychowawczych
2016
The article refers to the evaluation of local informers regarding collective overview of functioning of industrial settlement. The conducted research allowed to present fundamental spheres of community life from the perspective of the entire industrial town. The settlement constitutes not only a place of everyday life but also a place of young generation growth. The main aim of the study was to describe socio-cultural and educational settlement and its contemporary functioning. The past few years of urban transformation have led to the withdrawal from the idea of community (spatial) education to the benefit of privatization of teaching contents in social groups, institutions and mass media.…
Providing insights into browntail moth local outbreaks by combining life table data and semi-parametric statistics
2011
1. Life table studies have been an essential tool for the comprehension of insect population dynamics, although their use has been methodologically biased by a primary focus on mortality factors, especially natural enemies. Thus, studies in natural populations may relegate important mortality sources to the ‘unknown’ or ‘residual’ mortality categories. To overcome this limitation, life tables may be complemented by combining them with other approaches. 2. The aim of the present study was to provide insights into browntail moth Euproctis chrysorrhoea L. (Lepidoptera: Lymantriidae) local outbreaks by combining life table data and statistical modelling. First, E. chrysorrhoea population densit…
Sex-Specific Habitat Selection in an Edge Habitat Specialist, the Western Barbastelle Bat
2011
The niche variation hypothesis suggests that a population's ability to react to varying environmental conditions depend on the behavioural variability of its members. However, most studies on bats, including the work on the habitat use of the western barbastelle bat, Barbastella barbastellus, have not considered sex-specific and individual variability. We studied the habitat use of 12 female and five male western barbastelle bats within their home ranges with respect to available habitat types by applying kernel methods and Euclidean distances. Our results indicate individual habitat preferences within and among sexes of this species. Females preferred deciduous forest and linear elements w…
Studies on the Sicilian populations ofAnacolia webbii(Mont.) Schimp. (Bartramiaceae, Bryophyta), rare moss in Europe
2014
New data on the distribution, biology, intra- and inter-population variability and conservation state of Sicilian populations of Anacolia webbii are provided. Two new localities are reported, so that total five fragmented populations occur in the island, all of them in a rather small area in the western part of the province of Palermo. They live on wet limestone or sandstone cliffs with base at 900–1200 m a.s.l. and N, N-NE aspect, within communities of Aceri campestris-Querco-ilicis sigmetum. The plants are particularly vigorous, but some data suggest a condition of vulnerability of the populations. In fact, in addition to specificity to a rare habitat on the island, a morphometric and all…
The role of demography, intra-species variation, and species distribution models in species' projections under climate change
2014
Organisms are projected to shift their distribution ranges under climate change. The typical way to assess range shifts is by species distribution models (SDMs), which predict species’ responses to climate based solely on projected climatic suitability. However, life history traits can impact species’ responses to shifting habitat suitability. Additionally, it remains unclear if differences in vital rates across populations within a species can offset or exacerbate the effects of predicted changes in climatic suitability on population viability. In order to obtain a fuller understanding of the response of one species to projected climatic changes, we coupled demographic processes with predi…
Risk of Local Extinction of Odonata Freshwater Habitat Generalists and Specialists
2014
Understanding the risk of a local extinction in a single population relative to the habitat requirements of a species is important in both theoretical and applied ecology. Local extinction risk depends on several factors, such as habitat requirements, range size of species, and habitat quality. We studied the local extinctions among 31 dragonfly and damselfly species from 1930 to 1975 and from 1995 to 2003 in Central Finland. We tested whether habitat specialists had a higher local extinction rate than generalist species. Approximately 30% of the local dragonfly and damselfly populations were extirpated during the 2 study periods. The size of the geographical range of the species was negati…