Search results for "DaF"

Impacts of thinning of a Mediterranean oak forest on soil properties influencing water infiltration

2017

[EN] In Mediterranean ecosystems, special attention needs to be paid to forest¿water relationships due to water scarcity. In this context, Adaptive Forest Management (AFM) has the objective to establish how forest resources have to be managed with regards to the efficient use of water, which needs maintaining healthy soil properties even after disturbance. The main objective of this investigation was to understand the effect of one of the AFM methods, namely forest thinning, on soil hydraulic properties. At this aim, soil hydraulic characterization was performed on two contiguous Mediterranean oak forest plots, one of them thinned to reduce the forest density from 861 to 414 tree per ha. Th…

Il progetto di Juvarra per la scala di Palazzo Spadafora a Messina, analisi e ricostruzione digitale

2017

The project by Juvarra for the stair hall of Palazzo Spadafora in Messina, analysis and digital reconstruction This paper presents the results of an historical, architectural and geometrical study on the project by Filippo Juvarra for the stair hall of Palazzo Spadafora in Messina. Some drawings describing the project are today part of different album by Filippo Juvarra preserved in New York and Parigi and show different versions of the stair hall. Although conceived in the first part of Juvarra's career, in 1705, the complex project for Palazzo Spadafora is characterized by originality and sperimentalism, expecially in relation to the panorama of central and southern Italy in the first hal…

Bereiche der lexikalischen Kompetenz in Wortschatzübungen anhand der Lehrbuchserien 'In Touch' und 'Genau'

2009

hDAF expression in hearts of transgenic pigs obtained by sperm-mediated gene transfer.

2000

TRANSPLANTATON has been the choice option to treat successfully an increasing number of acute and chronic human pathologies with declining morbidity and mortality. However, availability of organs from human donors is limited and dramatically inadequate with respect to patient requests. Xenotransplantation from large-sized mammals has thus been reconsidered as a tool to overcome the present unbalance between organ offers and requests. Pigs have been chosen because they can be easily and cheaply bred; they do not raise ethical questions—their use as alimentary resources is generally admitted; and they possess organs largely human compatible for size, anatomical organization, and physiology. N…

Corema album archaeobotanical remains in western Mediterranean basin. Assessing fruit consumption during Upper Palaeolithic in Cova de les Cendres (A…

2019

[EN] Information about plant gathering by Palaeolithic hunter-gatherers in Europe is scarce because of the problems of preservation of plant remains in archaeological sites and due to the lack of application of archaebotanical analysis in many of them. Botanical macroremains wood charcoal, seeds, fruits, leaves, etc. - provide information not only about palaeoeconomy of hunter-gatherers, but also about climate, landscape and vegetation dynamics. In Gravettian and Solutrean levels of Cova de les Cendres (Alicante, Spain), Corema album pyrenes (Empetraceae or crowberries family) have been identified. On the contrary, wood charcoal of this species has not been documented among the remains of f…

What do leaf anatomy and micromorphology tell us about the psammophilous Pancratium maritimum (Amaryllidaceae) in response to sand dune conditions?

2015

Abstract The present study aimed at verifying the morphological variation in leaf traits among different populations of Pancratium maritimum (sea daffodil) and the correlation between leaf diversity and climate conditions at different sites. Eleven populations of P. maritimum from Mediterranean coastal sand dunes were investigated with respect to leaf surface micro-morphology, leaf anatomy, and vascular pattern. Morphometric analysis was based on 29 quantitative foliar parameters. One-way analysis of variance (ANOVA), principal component analysis (PCA), discriminant function analysis (DFA), and clustering by Ward’s method were used for the statistical evaluation. Results revealed a rather u…

Relationship of Weather Types on the Seasonal and Spatial Variability of Rainfall, Runoff, and Sediment Yield in the Western Mediterranean Basin

2020

Producción Científica

Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils

2017

Assessment of soil water repellency (SWR) was conducted in the decomposed organic floor layer (duff) and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time (WDPT) test and alternative indices derived from infiltration experiments carried out by the minidisk infiltrometer (MDI). In particular, the repellency index (RI) was calculated as the adjusted ratio between ethanol and water soil sorptivities whereas the water repellency cessation time (WRCT) and the specifically proposed modified repellency index (RIm) were derived from the hydrophobic and wettable stages of a single water infiltration experi…

Pharmacological Neuroenhancement: Substances and Epidemiology

2013

Pharmacological neuroenhancement (PN) refers to the general use of psychoactive substances with the purpose of cognitive enhancement (e.g. enhancement of vigilance, concentration, memory or mood) by healthy subjects. Substances for PN include Over-the-Counter- (OTC-) substances such as coffee, caffeinated drinks/energy drinks, caffeine tablets and Ginkgo biloba as well as prescription drugs and illicit drugs (e.g. (psycho-) stimulants). “Brain doping” refers to the illicit use of a subcategory of these substances. On the one hand, this subcategory includes prescription drugs for the treatment of attention deficit/hyperactivity disorder (ADHD), sleep disorders, Alzheimer’s disease and depres…

Smart drugs: de la terapia al transhumanismo

2018

ABSTRACT Enhancing human cognitive capacities is one of the central axes of transhumanist proposals. In recent decades, halfway between the actual and the possible, another way of approaching human mind enhancement has appeared: smart drugs —also known as cognitive enhancers or nootropics— psychopharmaceuticals that promise an improvement in cognition, memory, intelligence, attention, concentration... These drugs are currently used in the therapeutic field, but many think that the barriers between therapy and human enhancement are fading away. This paper presents three smart drugs —methylphenidate, modafinil and pyracetam— and reflects on the limits between therapy and enhancement, placing …