Search results for "Planet"
showing 10 items of 5662 documents
CLAYS IN COSMETICS AND PERSONAL-CARE PRODUCTS
2021
Clays are used in various cosmetic formulations, such as sunscreens, toothpastes, deodorants, creams, hair cosmetics, makeups, nail polish, facial masks, and shampoos, among others, to improve the organoleptic and physicochemical characteristics, to increase the stability, or to facilitate elaboration. Together with their technological functionalities, clays are cosmetologically active ingredients with cleaning, anti-aging, anti-wrinkling, and sun-care functionalities. Talc, kaolinite, mica, and some smectites are the clay minerals used most frequently in cosmetic products, but several other phyllosilicates as well as modified and synthetic clays are also used. Sometimes, clays are useful i…
Anthropogenic Influences in Land Use/Land Cover Changes in Mediterranean Forest Landscapes in Sicily
2016
This paper analyzes and quantifies the land use/land cover changes of the main forest and semi-natural landscape types in Sicily between 1955 and 2012. We analyzed seven representative forest and shrubland landscapes in Sicily. These study areas were chosen for their importance in the Sicilian forest panorama. We carried out a diachronic survey on historical and current aerial photos; all the aerial images used to survey the land use/land cover changes were digitalized and georeferenced in the UTM WGS84 system. In order to classify land use, the Regional Forest Inventory 2010 legend was adopted for the more recent images, and the CORINE Land Cover III level used for the older, lower resolut…
Changes in Climate and Land Use Over the Amazon Region: Current and Future Variability and Trends
2018
This paper shows recent progress in our understanding of climate variability and trends in the Amazon region, and how these interact with land use change. The review includes an overview of up-to-date information on climate and hydrological variability, and on warming trends in Amazonia, which reached 0.6-0.7 °C over the last 40 years, with 2016 as the warmest year since at least 1950 (0.9 °C +0.3°C). We focus on local and remote drivers of climate variability and change. We review the impacts of these drivers on the length of dry season, the role of the forest in climate and carbon cycles, the resilience of the forest, the risk of fires and biomass burning, and the potential “die back” of …
Années arrosées et années sèches au Proche-Orient, relation avec la circulation atmosphérique régionale
2003
Les précipitations au Proche-Orient (Liban, Syrie, Jordanie, Territoire Autonome Palestinien, Israël) sont caractérisées par une grande variabilité, que ce soit à l’échelle interannuelle ou à l’échelle mensuelle. Pour cerner et expliquer cette variabilité, trois ensembles régionaux de co-variation ont été définis en utilisant les données mensuelles de 116 stations pour la période 1960-61/1989-90. Nous avons analysé la relation entre les années exceptionnellement arrosées ou sèches et la circulation atmosphérique régionale (données de réanalyses). Les précipitations dans les trois régions apparaissent très dépendantes de l’occurrence et de la position d’un talweg en altitude à l’est de la Mé…
Internet-based information and foreign direct investment (FDI) location decision making: An information cost perspective
2012
Published version of an article in the journal: African Journal of Business Management. Also available from the publisher at: http://dx.doi.org/10.5897/AJBM11.1203 Open Access Information and communication technology (ICT) is considered to play an important role to reduce information cost for potential foreign investors. While a growing body of literature has suggested such connections, conceptual clarity is yet to be achieved. This study introduces a conceptual framework based on the Information-theoretic approach and transaction cost perspective to explore how ICT may reduce information cost. To illustrate our proposed framework, we apply it to examine the role of Internet-based informati…
El model PROT i la responsabilitat social universitaria: prosocialitat i transferència del coneixement a la pràctica
2019
espanolEn 30 anos de historia, el grupo LIPA (Laboratorio de Investigacion Prosocial Aplicada) de la Universidad Autonoma de Barcelona (UAB) ha promovido y generado un modelo internacionalprofesional, de investigacion y formacion para la optimizacion prosocial de los territorios y organizaciones. La Prosocialidad transferida a la practica social en lipa ha generado intervenciones innovadoras que desde una apuesta por la transferencia del conocimiento, ha beneficiado de modo efectivo a personas y organizaciones, potenciando su creatividad, identidad y autonomia. Se sistematizan los resultados de intervencion profesional de proyectos sociales de lipa, para determinar cuales son indicadores de…
Conduit dynamics and post explosion degassing on Stromboli: A combined UV camera and numerical modeling treatment
2016
Recent gas flux measurements have shown that Strombolian explosions are often followed by periods of elevated flux, or “gas codas,” with durations of order a minute. Here we present UV camera data from 200 events recorded at Stromboli volcano to constrain the nature of these codas for the first time, providing estimates for combined explosion plus coda SO2 masses of ≈18–225 kg. Numerical simulations of gas slug ascent show that substantial proportions of the initial gas mass can be distributed into a train of “daughter bubbles” released from the base of the slug, which we suggest, generate the codas, on bursting at the surface. This process could also cause transitioning of slugs into cap b…
Mètode multinivell per promoure la prosocialitat a l’escola: contribució a la formació en RSU
2019
espanolLa prosocialidad se refiere a las acciones socialmente beneficiosas, implicando conducta, emociones y razonamiento, y aqui se propone un metodo para llevar a cabo una intervencion en centros educativos para su promocion mediante una estrategia multinivel o cadena de favores. Antecedentes: aunque no existe un antecedente especifico del metodo propuesto, existen estudios acerca de la promocion de la prosocialidad en la escuela, centrados en la conducta, las emociones o los razonamientos, y el principal antecedente es el metodo de intervencion prosocial de Robert Roche (Escotorin y Roche, 2011; Roche, 1999, 1997; Romersi, Martinez-Fernandez y Roche, 2011), de la Universidad Autonoma de …
(Ré)concilier éclairage urbain et environnement nocturne : les enjeux d’une controverse sociotechnique
2014
International audience; Our paper explains the birth of an environmental problem, i.e. light pollution, viewed as a socio-technical controversy. Supported by the actor-network approach, it traces over forty years the conditions of its emergence, transformation and dissemination to local, national and transnational levels and through various professional disciplines. Schematically, “environmentalists” uphold a holistic approach of “nocturnality” and define artificial light as a pollutant. Facing them, the “technicist” defends a segmented approach and defines artificial light as a nuisance. The introduction of this controversy into the political agenda leads to institutional decisions that gr…
Constraining the pass-band of future space-based coronagraphs for observations of solar eruptions in the FeXIV 530.3 nm “green line”
2017
This research has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 647214) and from the UK Science and Technology Facilities Council. Observations of the solar corona in the FeXIV 530.3 nm “green line” have been very important in the past, and are planned for future coronagraphs on-board forthcoming space missions such as PROBA-3 and Aditya. For these instruments, a very important parameter to be optimized is the spectral width of the band-pass filter to be centred over the “green line”. Focusing on solar eruptions, motions occurring along the line of sight will Doppler shift the line prof…