1,327 research outputs found
Ecoprocesses. A need and a requirement
Cleaner production is a means of applying in a continuous manner a preventive and integrated environmental strategy aimed at processes and product
Ciències i professions en l’activitat fĂsica i l’esport
Els centres de formaciĂł dels professionals universitaris en ciències de l’activitat fĂsica i l’esport tenen, al meu entendre, tres grans reptes plantejats. El primer Ă©s assumir la multidisciplinarietat dels estudis de l’activitat fĂsica i l’esport i el plantejament tecnològic de la carrera que s’hi realitza. El segon Ă©s reafirmar-se en el centrament professional en l’activitat fĂsica i l’esport i contemplar l’existència de l’educaciĂł per a la salut com una nova dimensiĂł educativa, complementĂ ria però diferent de l’educaciĂł fĂsica. El tercer Ă©s oferir, des del nucli central de l’educaciĂł fĂsica però coordinadament amb les altres ciències i tecnologies, unes formacions bĂ siques que cobreixen totes les necessitats que s’ha creat al voltant de l’activitat fĂsica, el deport i l’esport i, complementĂ riament, oferir cursos d’especialitzaciĂł partint d’aquelles formacions bĂ siques
Ciencias y profesiones en la actividad fĂsica y el deporte
Los centros de formaciĂłn de los profesionales universitarios en ciencias de la actividad fĂsica y el deporte tienen, a mi entender, tres grandes retos planteados. Lo primero es asumir la multidisciplinariedad de los estudios de la actividad fĂsica y el deporte y el planteamiento tecnolĂłgico de la carrera que se realiza. Lo segundo es reafirmarse en el enfoque profesional en la actividad fĂsica y el deporte y contemplar la existencia de la educaciĂłn para la salud como una nueva dimensiĂłn educativa, complementaria pero diferente a la educaciĂłn fĂsica. Lo tercero es ofrecer, desde el nĂşcleo central de la educaciĂłn fĂsica pero coordinadamente con las otras ciencias y tecnologĂas, unes formaciones básicas que cubran todas las necesidades que se han creado alrededor de la actividad fĂsica y el deporte, y complementariamente cursos de especializaciĂłn partiendo de aquellas formaciones básicas
HST color-magnitude diagrams of 74 galactic globular clusters in the HST F439W and F555W bands
We present the complete photometric database and the color-magnitude diagrams
for 74 Galactic globular clusters observed with the HST/WFPC2 camera in the
F439W and F555W bands. A detailed discussion of the various reduction steps is
also presented, and of the procedures to transform instrumental magnitudes into
both the HST F439W and F555W flight system and the standard Johnson B and V
systems. We also describe the artificial star experiments which have been
performed to derive the star count completeness in all the relevant branches of
the color magnitude diagram. The entire photometric database and the
completeness function will be made available on the Web immediately after the
publication of the present paper.Comment: 21 pages, 77 figures. High resolution version of this paper can be
retrived at http://dipastro.pd.astro.it/globular
Gene deficiency in activating FcÎł receptors influences the macrophage phenotypic balance and reduces atherosclerosis in mice
Immunity contributes to arterial inflammation during atherosclerosis. Oxidized low-density lipoproteins induce an autoimmune response characterized by specific antibodies and immune complexes in atherosclerotic patients. We hypothesize that specific FcÎł receptors for IgG constant region participate in atherogenesis by regulating the inflammatory state of lesional macrophages. In vivo we examined the role of activating FcÎł receptors in atherosclerosis progression using bone marrow transplantation from mice deficient in Îł-chain (the common signaling subunit of activating FcÎł receptors) to hyperlipidemic mice. Hematopoietic deficiency of FcÎł receptors significantly reduced atherosclerotic lesion size, which was associated with decreased number of macrophages and T lymphocytes, and increased T regulatory cell function. Lesions of FcÎł receptor deficient mice exhibited increased plaque stability, as evidenced by higher collagen and smooth muscle cell content and decreased apoptosis. These effects were independent of changes in serum lipids and antibody response to oxidized low-density lipoproteins. Activating FcÎł receptor deficiency reduced pro-inflammatory gene expression, nuclear factor-ÎşB activity, and M1 macrophages at the lesion site, while increasing anti-inflammatory genes and M2 macrophages. The decreased inflammation in the lesions was mirrored by a reduced number of classical inflammatory monocytes in blood. In vitro, lack of activating FcÎł receptors attenuated foam cell formation, oxidative stress and pro-inflammatory gene expression, and increased M2-associated genes in murine macrophages. Our study demonstrates that activating FcÎł receptors influence the macrophage phenotypic balance in the artery wall of atherosclerotic mice and suggests that modulation of FcÎł receptor-mediated inflammatory responses could effectively suppress atherosclerosis
Les Marqueurs du discours dans les langues romanes: une approche contrastive. [RESEĂ‘A]
Borreguero Zuloaga, Margarita, y Sonia GĂłmez-Jordana Ferary, eds. Les Marqueurs du discours dans les langues romanes: une approche contrastive. Limoges: Lambert-Lucas, 2015. 437 pp. (ISBN: 978-2-35935-118-7
Self-rated health in Europe and its determinants: Does generation matter?
Objectives: To analyse the influence of micro- and macro-factors on self-rated health, and the role of generation on this relationship. Methods: Cross-sectional study using data from European Health Interview Surveys from 14 European countries. Individuals were divided into four generations (“silent generation”, “baby boomers”, and “generation X” and “Y”). We conducted multilevel analyses for each generation to study the influence of individual and national explanatory variables on self-rated health. Results: Age showed an exponential effect in older generations. Education and employment presented the strongest association with low self-rated health, especially in “baby boomers” and women (low education: OR 3.5; 95% CI 3.2–3.9). Tobacco showed a negative effect in younger generations. Overweight and low physical activity were negatively associated with self-rated health regardless of generation. Countries from the Eastern welfare system showed the highest risk of low self-rated health and this association was higher in men for “silent generation” (OR 4.7; 95% CI 3.0–7.6). Conclusions: The influence of individual and national factors on self-rated health varies regarding generation. The target generation and the demographic structure of a country should be taken into account to develop more accurate health policies
Atmospheric dispersion of airborne pollen evidenced by near-surface and columnar measurements in Barcelona, Spain
Hourly measurements of pollen near-surface concentration and lidar-derived profiles of particle backscatter coefficients and of volume and particle depolarization ratios during a 5-day pollination event observed in Barcelona, Spain, between 27 – 31 March, 2015, are presented. Maximum hourly pollen concentrations of 4700 and 1200 m-3 h-1 were found for Platanus and Pinus, respectively, which represented together more than 80 % of the total pollen. Everyday a clear diurnal cycle caused by the vertical transport of the airborne pollen was visible on the lidar-derived profiles of the backscatter coefficient with maxima usually reached between 12 and 15 UT. A method based on the lidar polarization capabilities was used to retrieve the contribution of the pollen to the total signal. On average the diurnal (9 – 17 UT) pollen aerosol optical depth (AOD) was 0.05 which represented 29 % of the total AOD, the volume and particle depolarization ratios in the pollen plume were 0.08 and 0.14, respectively, and the diurnal mean of the height of the pollen plume was found at 1.24 km.
The dispersion of the Platanus and Pinus in the atmosphere was simulated with the Nonhydrostatic Multiscale Meteorological Model on the B grid at the Barcelona Supercomputing Center with a newly developed Chemical Transport Model (NMMB/BSC-CTM). Model near-surface daily concentrations were compared to our observations at two sites: in Barcelona and Bellaterra (12 km NE of Barcelona). Model hourly concentrations were compared to our observations in Barcelona.Peer ReviewedPostprint (author's final draft
Migraciones y mercado laboral
En este artĂculo pasamos revista a los análisis de las migraciones desde la perspectiva de los mercados laborales. Se discuten los diversos enfoques analĂticos y se argumenta la relevancia del enfoque de la segmentaciĂłn laboral para entender las dinámicas laborales en las que se sitĂşan una gran parte de procesos migratorios. Defendemos que los procesos migratorios están influidos tanto por las transformaciones de las economĂas capitalistas como las regulaciones institucionales especĂficas de cada paĂs (leyes de migraciĂłn, polĂticas de bienestar, etc.). _______________________________________In this paper we review the analyses of migration from the point of view of labor markets. We discuss different analytical perspectives and we consider the relevance of the labor segmentation approach for understanding the labor dynamics that influence the majority of migration processes. We argue that migration processes are influenced both by the transformation of capitalist economies and by the specific institutions of each country (migration laws, welfare policies, etc.)
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