Search results for "RAV"
showing 10 items of 5866 documents
The emission reduction potentials of First Generation Electric Aircraft (FGEA) in Finland
2020
Under the looming climate crisis, aviation needs to find new solutions to cut its greenhouse gas emissions. One pathway towards zero emissions is the use of electric aircraft. While current battery technology will not allow for medium and long-haul flights at full capacity, on short-haul routes First Generation Electric Aircraft (FGEA) could play a significant role in the near future. Current FGEA under development could carry 9–19 passengers on distances of 400–1046 km by 2025. This study focuses on the emissions reduction potentials of FGEA in Finland. It compares the carbon dioxide equivalent (CO2-eq) emissions and real travel times (RTT) from door-to-door of FGEA on 47 routes with exist…
Upper limits on the isotropic gravitational-wave background from Advanced LIGO and Advanced Virgo's third observing run
2021
We report results of a search for an isotropic gravitational-wave background (GWB) using data from Advanced LIGO's and Advanced Virgo's third observing run (O3) combined with upper limits from the earlier O1 and O2 runs. Unlike in previous observing runs in the advanced detector era, we include Virgo in the search for the GWB. The results are consistent with uncorrelated noise, and therefore we place upper limits on the strength of the GWB. We find that the dimensionless energy density $\Omega_{\rm GW}\leq 5.8\times 10^{-9}$ at the 95% credible level for a flat (frequency-independent) GWB, using a prior which is uniform in the log of the strength of the GWB, with 99% of the sensitivity comi…
La conception d'un code civil dans les travaux de codification belgo-néerlandais, 1798-1838
2009
Impact of biotic and abiotic factors on bacterial virulence
2013
Comparison of adsorption properties of commercial silica and rice husk ash (RHA) silica: A study by NIR spectroscopy
2021
Abstract Adsorption properties of Silica gel (commercial silica), rice husk ash (RHA) silica, and their hydrothermally treated products towards water molecules were studied in this work. RHA silica was prepared by heating rice husk to 650°C for 4 h after pretreatment with hydrochloric acid. Portions of the samples of silica were evacuated at 200℃ and then allowed to adsorb water molecules from the surrounding air at either 42 or 50% humidity. The near infrared spectra of these samples were measured at different time intervals during their adsorption of water molecules. The evolved near infrared spectra were analyzed using second derivative techniques. Adsorption properties of these samples …
Stable isotopes in monitoring terrestrial arthropods
2022
Monitoring of arthropods focuses typically on changes in population and range size over time. Yet, there are a myriad of other aspects that could and should be monitored under the ongoing global and local environmental change. Stable isotope analysis, widely employed in short-term ecological studies, has potential in long-term monitoring of arthropods. Here we discuss the use of stable isotopes in monitoring terrestrial arthropods, provide some empirical examples of the use of bulk tissue samples in stable isotope analysis, and outline future directions in using compound-specific stable isotope analysis in monitoring. We performed a literature search for 2012–2021 to see if stable isotopes …
Simulated eutrophication and browning alters zooplankton nutritional quality and determines juvenile fish growth and survival
2018
Source at https://doi.org/10.1002/ece3.3832. The first few months of life is the most vulnerable period for fish and their optimal hatching time with zooplankton prey is favored by natural selection. Traditionally, however, prey abundance (i.e., zooplankton density) has been considered important, whereas prey nutritional composition has been largely neglected in natural settings. High‐quality zooplankton, rich in both essential amino acids (EAAs) and fatty acids (FAs), are required as starting prey to initiate development and fast juvenile growth. Prey quality is dependent on environmental conditions, and, for example, eutrophication and browning are two major factors defining primary produ…
La compraventa de obras plásticas en Internet: especial referencia a las facultades patrimoniales de sus autores y titulares
2022
Las obras plásticas expresan un contenido estético, conceptual y testimonial a través de las líneas, las formas, colores y volúmenes. Por su naturaleza creativa se realizan en ejemplares únicos o ediciones limitadas. En la actual sociedad tecnológica el proceso de digitalización ha dado lugar a nuevas formas de reproducción de la obra plástica propiciando un vuelco del mercado del arte a la web y permitiendo la realización de diversos negocios jurídicos para comercializar obras intelectuales. La ponencia que se presenta analiza la particular realidad de la circulación y venta de obras plásticas en Internet. El análisis parte de reconocer que es un contrato totalmente válido si bien se enmar…
Développer ses compétences transversales pour réussir ses études en santé
2018
International audience; Cette communication propose une réponse à la question « Quels outils pédagogiques mobiliser, notamment pour l’acquisition des compétences transversales ? ».Nous présentons une expérimentation qui s'est déroulée auprès de 66 étudiants en L2 Sciences pour la Santé à l’Université de Lorraine. La formation d’une semaine, proposée conjointement par les projets IDEFI Remis et TalentCampus en septembre 2017, visait à :- permettre à chacun de découvrir l’importance des compétences transversales ;- travailler son estime de soi ;- développer des compétences de travail en groupe et de communication orale.La L2 Sciences pour la Santé présente la particularité d’accueillir un pub…
1987. La protesta estudiantil contra el Gobierno socialista. La Generalitat Valenciana y el conflicto estudiantil. "El acuerdo valenciano" del consel…
2006
1987. La protesta estudiantil contra el Gobierno socialista. La Generalitat Valenciana y el conflicto estudiantil. "El acuerdo valenciano" del conseller Ciprià Císcar. La hegemonía socialista en la Comunidad Valenciana. El PSPV-PSOE. 1982-1995 La protesta estudiantil contra el Gobierno socialista. En diciembre de 1986 estallaría un conflicto entre el Ministerio de Educación y los estudiantes de Bachillerato -BUP- y formación profesional -FP-, que se extendería a profesores, y que tendría paralizada la enseñanza más de dos meses. Las manifestaciones y huelgas generales eran nacionales contra las políticas del ministro de Educación y Ciencia, José María Maravall, y que afectaría a la Generali…