Search results for " environments"

Unconventional Reducing Gases Monitoring in Everyday Places

2017

Abstract Air pollution, be it indoors or outdoors, is a major environmental health concern as it can lead to serious health effects, such as respiratory diseases, including asthma and lung cancer. Much progress has been made in Europe in improving outdoor air quality and limit values have been set for several pollutants. However, indoor air quality also requires attention because this is where we spend most of our time. Measurements at appropriate spatial and temporal scales are essential for understanding and monitoring heterogeneous environments with complex and highly variable emission sources, such as in urban areas. However, the costs and complexity of conventional air quality measurem…

Identifying potential areas of expansion for the endangered brown bear (Ursus arctos) population in the cantabrian mountains (NW Spain)

2019

Many large carnivore populations are expanding into human-modified landscapes and the subsequent increase in coexistence between humans and large carnivores may intensify various types of conflicts. A proactive management approach is critical to successful mitigation of such conflicts. The Cantabrian Mountains in Northern Spain are home to the last remaining native brown bear (Ursus arctos) population of the Iberian Peninsula, which is also amongst the most severely threatened European populations, with an important core group residing in the province of Asturias. There are indications that this small population is demographically expanding its range. The identification of the potential are…

Collective spontaneous emission of two entangled atoms near an oscillating mirror

2020

We consider the cooperative spontaneous emission of a system of two identical atoms, interacting with the electromagnetic field in the vacuum state and in the presence of an oscillating mirror. We assume that the two atoms, one in the ground state and the other in the excited state, are prepared in a correlated (symmetric or antisymmetric) {\em Bell}-type state. We also suppose that the perfectly reflecting plate oscillates adiabatically, with the field modes satisfying the boundary conditions at the mirror surface at any given instant, so that the time-dependence of the interaction Hamiltonian is entirely enclosed in the instantaneous atoms-wall distance. Using time-dependent perturbation …

ALIMENTAZIONE E AMBIENTI INUSUALI PER IL PIRO PIRO PICCOLO ACTITIS HYPOLEUCOS (Aves Scolopacidae)

2017

Feeding and unusual environments for Actitis hypoleucos (Aves Scolopacidae)

Ethics and Politics of the Built Environment: Gardens of the Anthropocene

2017

This book is a reflection on the role of gardens in our thinking about our environments, and on the role of urban gardening in our acting and for our environments. More generally, it is an exploration of the ethical and political station of individuals in the Anthropocene - this new epoch in which the Earth is being remade by human activity. The book argues that, in the new epoch, urban gardens and gardening are to become 1) conceptual models for reflecting on the human station within the wider workings of things; 2) contexts and practices of stewardship that enable the fulfillment of individual moral obligations against important global challenges - including food security, climate change,…

¿Influye la Retroalimentación Correctiva en el Uso de la Retroalimentación Elaborada en un Entorno Digital?

2019

Los entornos digitales permiten proporcionar retroalimentación correctiva de verificación de respuestas (KR: correcto/incorrecto) o de respuesta correcta (KCR: la respuesta correcta es X), junto con retroalimentación elaborada (EF: explicaciones). Es frecuente asumir que los estudiantes procesan la EF, aunque investigaciones recientes demuestran que eso no siempre es así, debido probablemente a la retroalimentación correctiva proporcionada junto con la EF. El objetivo de este trabajo es analizar la decisión voluntaria de acceder a EF en función de la retroalimentación KR y KCR recibida inmediatamente tras responder preguntas de un texto de ciencias. Estudiantes de secundaria recibieron retr…

Risk factors for central nervous system tumors in children: New findings from a case-control study

2017

BACKGROUND: Central nervous system tumors (CNS) are the most frequent solid tumor in children. Causes of CNS tumors are mainly unknown and only 5% of the cases can be explained by genetic predisposition. We studied the effects of environmental exposure on the incidence of CNS tumors in children by subtype, according to exposure to industrial and/or urban environment, exposure to crops and according to socio-economic status of the child. METHODS: We carried out a population-based case-control study of CNS tumors in Spain, covering 714 incident cases collected from the Spanish Registry of Childhood Tumors (period 1996-2011) and 4284 controls, individually matched by year of birth, sex, and au…

Influence of Different Environments and Temperatures on the Photo-Oxidation Behaviour of the Polypropylene.

2022

The photo-oxidation of polypropylene at two different temperatures and in three different environments—air, distilled water and sea water—has been followed as a function of the irradiation time. The photo-oxidation kinetic is dramatically dependent on the amount of oxygen available for the oxidation reactions and on the temperature. While the photo-oxidation is very fast in air, the degradation is much slower in the two aqueous media. The degradation in sea water is slightly slower than in distilled water. In all cases, the degradation kinetic increases remarkably with the temperature. This behavior has been attributed to the lower oxygen availability for the oxidation reactions of the poly…

Thermus bacteriophage P23-77 : key member of a novel, but ancient family of viruses from extreme environments

2015

Mars-105 study : Time-courses and relationships between coping, defense mechanisms, emotions and depression

2013

International audience; This study investigated the time-courses and the relationships between coping, defense mechanisms, emotions and depression considered as key factors in adaptation to ICE (Isolated and Confined Extreme) environments. During the space simulation, the Mars-105 experiment, positive emotion decreased significantly and significant positive correlations were found between mature defenses and both positive emotions and Task-Oriented Coping (TOC), as well as between Disengagement-Oriented Coping (DOC) and symptoms of depression. These findings show the impact of space simulation on affective states and the relations of defense to both coping and emotion, which underline the r…