Search results for "Variation"
showing 10 items of 2124 documents
Morphologie und Syntax im Projekt ALD-DM
2017
Quest'articolo prende l'avvio dal contributo presentato al VI Colloquium Retoromanistich (cf. Bauer 2016) e offre un'analisi linguistica tra le varietà ladine e la quantificazione statistica degli aspetti morfologici e sintattici secondo il quadro teorico del progetto ALD-DM (Università di Salisburgo). All'interno del progetto, l'interpretazione fonetica e lessicale sulla base delle carte dell'atlante del ladino dolomitico (ALD) è invece già stata completata (pubblicazione della prima parte: 1998; della seconda parte: 2012). Dopo una breve introduzione al progetto, in quest'articolo si discutono tre aspetti morfosintattici (per es. l'omofonia delle desinenze verbali di terza persona singola…
Potential for adaptation to climate change: family-level variation in fitness-related traits and their responses to heat waves in a snail population.
2017
Background On-going global climate change poses a serious threat for natural populations unless they are able to evolutionarily adapt to changing environmental conditions (e.g. increasing average temperatures, occurrence of extreme weather events). A prerequisite for evolutionary change is within-population heritable genetic variation in traits subject to selection. In relation to climate change, mainly phenological traits as well as heat and desiccation resistance have been examined for such variation. Therefore, it is important to investigate adaptive potential under climate change conditions across a broader range of traits. This is especially true for life-history traits and defences ag…
Implications of heat waves on immune defence, life history traits, and adaptive potential : a snail's perspective
2014
Range expansion to novel environments : evolutionary physiology and genetics in Leptinotarsa decemlineata
2010
Visualizing, measuring and mapping the spatial variations of simulation results in the course of time
2015
International audience
Interspecific information on predation risk affects nest site choice in a passerine bird
2018
Abstract Background Breeding site choice constitutes an important part of the species niche. Nest predation affects breeding site choice, and has been suggested to drive niche segregation and local coexistence of species. Interspecific social information use may, in turn, result in copying or rejection of heterospecific niche characteristics and thus affect realized niche overlap between species. We tested experimentally whether a migratory bird, the pied flycatcher Ficedula hypoleuca, collects information about nest predation risk from indirect cues of predators visiting nests of heterospecific birds. Furthermore, we investigated whether the migratory birds can associate such information w…
The effects of antimicrobial sprays and mouthrinses on supragingival plaque regrowth: a comparative study.
2006
BACKGROUND: Due to the side effects of chlorhexidine digluconate (CHX) mouthrinsing, a spray has been proposed as an alternative method of CHX delivery to the oral cavity. The aim of this study was to investigate the plaque inhibitory effects of CHX, cetylpyridinium chloride (CPC), and triclosan (TRN) delivered by sprays and mouthrinses. METHODS: The study was an observer-masked, randomized cross-over design balanced for carryover effects, involving 15 healthy volunteers in a 4-day plaque regrowth model. Products being tested (0.2% CHX, 0.12% CHX, 0.05% CPC, and 0.03% TRN) were used both as sprays and mouthrinses. A saline solution served as a negative control. On day 1, subjects received p…
Broglie and Young, visionaries who shed light in the polar topology that grounds our reality: a hypothesis
2020
Una observación matemática que relaciona los patrones fractales y la operación de convolución en el contexto del procesamiento de imágenes digitales interrumpió una investigación que nos lleva a plantear la hipótesis de que el concepto de onda de materia (o dualidad onda-partícula) se encuentra en la dicotomía entre el par débil y un topología fuerte en el ámbito del marco de atractores singulares continuos en ninguna parte diferenciables y el concepto de fotón-solitón de Vigier. Tal inferencia parece ser más evidente en la interpretación de Broglie-Bohm de la mecánica cuántica en el cruce de características locales x globales. De esto se deduce también que la relación de los fenómenos natu…
La relació entre història de la llengua i història literària
2021
La relació entre la disciplina història de la llengua i la disciplina història de la literatura ha estat una relació de subordinació, tant des del punt vista conceptual com metodològic. La primera ha estat subordinada a la segona. En aquest article tractem en primer lloc de les circumstàncies i els esdeveniments històrics que han determinat aquesta situació de subordinació: la identificació cultural entre llengua i literatura (però amb la supeditació de la primera a la segona), el naixement de la lingüística romànica (que, paradoxalment, no va afavorir l’autonomia de la història de la llengua) i la desclosa de les cultures nacionals, que també van donar prioritat a la literatura nacional. E…
Variazioni temporali della struttura di taglia in popolazioni sfruttate di Haliotis tuberculata (Mollusca Gastropoda) nel Golfo di Sferracavallo (PA)
2007
This study aims at evaluating the differences in size structure of population of H. tuberculata in the Gulf of Sferracavallo (northern Sicily) which experienced the co-occurrence of high exploitation and decrease of eutrophic conditions during the eighties and early nineties. Comparison of size structure showed significant differences between length frequency distributions of 1970-75s and 2002-2005, being the latter formed by smaller size green ormer.