Search results for "CRA"
showing 10 items of 4890 documents
Nikkelin kertyminen täplärapuun (Pacifastacus leniusculus) kahdessa eri lämpötilassa
2017
Kaivostoiminnan aiheuttamat metallipäästöt ovat maailmanlaajuinen ympäristöongelma. Kaivospäästöjen takia metalleja pääsee luontoon ja eliöstöön biosaatavassa vesiliukoisessa muodossa kuten sulfaatteina tai klorideina. Nikkeli on bioakkumuloituva eliöille haitallinen metalli, jota käytetään teollisuuden raaka-aineena ympäri maailmaa. Tässä tutkielmassa tarkasteltiin nikkelin kertymistä täplärapuun (Pacifastacus leniusculus) laboratorio-olosuhteissa kahdella 14 vrk:n altistuskokeella eri nikkelialtistuspitoisuuksilla kahdessa eri lämpötilassa (7 ja 17 °C). Eri testilämpötiloilla pyrittiin selvittämään, onko nikkelin kertyminen riippuvaista vaihtolämpöisen täpläravun aineenvaihduntatasosta. K…
Evaluación del riesgo de exposición a ocratoxina A
2013
La ocratoxina es una micotoxina producida por ciertas especies de hongos toxigénicos del género Aspergillus y Penicillium. Se encuentra ampliamente distribuida en gran número alimentos especialmente en climas cálidos. La fuente de exposición más importante para ocratoxina A son los cereales, los frutos secos, frutas desecadas y café. El trigo es el cereal más comúnmente contaminado por OTA y el sorgo es el que presenta niveles de contaminación más altos. La contaminación por OTA es mayor en los cereales ricos en fibra. En el pan la contaminación por OTA varía en función del cereal utilizado como materia prima, si bien el pan de maíz suele presentar una mayor contaminación que el de trigo. L…
Increasing girls' interest in technology education as a way to advance women in technology
2016
Technology-oriented fields are still largely male-dominated, and an effective approach for increasing the number of women in natural science and technology careers has not yet been achieved in EU countries. A related concern, particularly in Finland, is that even though gender equality and non-discrimination have long been critical concerns in education to date there has been very little of research in Finland about girls’ motivations towards technical craft or technology education, nor about their relation to women’s career aspirations in technology-oriented fields. The present study is my contribution to the concern of getting more women into technology by investigating how to increase gi…
Effects of Transcranial Direct Current Stimulation on Baseline and Slope of Prefrontal Cortex Hemodynamics During a Spatial Working Memory Task
2020
Background: Transcranial direct current stimulation (tDCS) has been shown to be an inexpensive, safe, and effective way of augmenting a variety of cognitive abilities. Relatively recent advances in neuroimaging technology have provided the ability to measure brain activity concurrently during active brain stimulation rather than after stimulation. The effects on brain activity elicited by tDCS during active tDCS reported by initial studies have been somewhat conflicted and seemingly dependent on whether a behavioral improvement was observed. Objective: The current study set out to address questions regarding behavioral change, within and between-participant designs as well as differentiatin…
A model for predicting the mixed-mode fatigue crack growth in a bonded joint
2013
Bonded joints are highly sensitive to the presence of defects and to the degradation phenomena, and this aspect represents the primary obstacle to their use in different structural engineering applications. Delamination in a bonded joint represents, in fact, one of the primary, most common and insidious causes of damage. In this paper, a numerical–experimental study on the crack propagation along the adhesive layer of a bonded joint specimen is carried out. Experimental study is focused on the evaluation of the damage modalities of a bonded joint when the specimens are subject to fatigue load. Experimental tests are compared with the results of several numerical analysis performed in ANSYS …
An EEMD Aided Comparison of Time Histories and Its Application in Vehicle Safety
2017
In the context of signal processing, the comparison of time histories is required for different purposes, especially for the model validation of vehicle safety. Most of the existing metrics focus on the mathematical value only. Therefore, they suffer the measuring errors, disturbance, and uncertainties and can hardly achieve a stable result with a clear physical interpretation. This paper proposes a novel scheme of time histories comparison to be used in vehicle safety analysis. More specifically, each signal for comparison is decomposed into a trend signal and several intrinsic mode functions (IMFs) by ensemble empirical mode decomposition. The trend signals reflect the general variation a…
Taxonomy and conservation ofPancratium maritimum(Amaryllidaceae) and relatives in the Central Mediterranean
2015
Pancratium maritimum L. (Amaryllidaceae) is a geophyte occurring in the Mediterranean region, from the Black Sea to part of the Atlantic coast. This plant is receiving much attention from the international scientific community due to its value as a bioindicator, the potential industrial value of its chemical compounds, and its use as a commercial ornamental plant. Plant morphometry and sequences of three plastid DNA regions (rbcL, matK, trnH-psbA) were used to assess the phenotypic and genetic variability of this taxon and its closest congeneric species (in particular Pancratium linosae, from the volcanic island of Linosa) in the Central Mediterranean (Sicily, Tunisia and surrounding island…
MONASTERES ET ARISTOCRATIE EN PROVENCE -MILIEU Xe -DEBUT XIIe SIECLE
1999
Version électronique réalisée par l'autrice en juillet 2015, légèrement différente de la version finale imprimée, issue du remaniement d'une thèse de doctorat soutenue en janvier 1997, à l'université de Provence.; International audience; Au milieu du Xe siècle, la Provence sort d'une longue période de conflits politiques pendant laquelle les anciens monastères avaient presque entièrement disparu. La fondation de Montmajour et l'implantation des moines clunisiens en Haute Provence marquent le début d'une longue série de restaurations et de fondations de monastères bénédictins, dont Saint-Victor de Marseille et Lérins. Ce mouvement de renouveau est directement lié à l'action des familles aris…
Erradicando la xenofobia y la aporofobia desde la compasión ética como capacidad clave de la neuroeducación moral
2021
Drawing on the contributions of some of the most recent and relevant studies on neuroethics and moral neuroeducation, this paper undertakes an analysis of compassion. In order to focus on the results of this neuroscientific research a reductionist naturalist framework is set aside in order to embrace the broader outlook of a moral neuroeducation that, firstly, refuses to reduce its normative character to the human capacity for evolutionary adaptation; and, secondly, seeks to locate within the brain the neuronal foundations for the development of a capacity for compassion towards those of one’s own community, and also those from outside it. Thereby, this capacity for compassion moves beyond …
Vapauden kapea polku : István Bibón julkinen moralismi
2017
The task of this study is to listen to the moral voice of István Bibó, a Hungarian democrat. Listening to past ‘voices’ is an approach of intellectual history introduced by Stefan Collini, who has eavesdropped on the conversations of ‘public moralists’ in the British intellectual life from the period c. 1850–1950. What has been translated of and written on Bibó’s thought in Hungary – irrespective of a couple of notable exceptions not much is found abroad – is very ‘Hungarian’ in tone in particular, note the very productive workshop (Bibó Szellemi Műhely), whereas I have tried independently to develop Collini’s approach. Instead of uncovering the meanings of ideas and concepts in the context…