OALib Journal期刊

ISSN: 2333-9721



匹配条件: “Ballester” ,找到相关结果约418条。
Contaminación atmosférica, cambio climático y salud
Revista Espa?ola de Salud Pública , 2005, DOI: 10.1590/S1135-57272005000200005
Abstract: emissions into the atmosphere related to the climate change may further worsen the effects which air pollution has on the health of our citizens, not only indirectly due to the impact of weather phenomenon, but directly, due to the direct effects pollutants have on health. however, the efforts throughout most of the world have been aimed at dealing with these two problems separately for too many years. in fact, it is very often believed that the climate's health-safeguarding benefits would be achieved in the long term. to the contrary, what has become obvious over recent years is that the actions for reducing the emissions of polluting gases could redound in beneficial effects in the short term due to the reduction of the impact of air pollutants on the health of our citizens. this article presents the possible risks of the pollutants most closely related to climate changes, such as ozone and fine particles. bearing in mind the uncertainties and unknowns related to this subject, the main implications for the policies related to this matter in spain, as well as the needs for research are set out herein. in this regard, both from the standpoint of monitoring as well as research, it is considered necessary for an epidemiological monitoring system of the effects of air pollution and the relationship thereof to global changes to be established.
Metales orgánicos. Una perspectiva de nuevos materiales
Ballester, Manuel
Materiales de Construccion , 1985,
Abstract: This work explains with comprehensive terms for non specialists what the Organic Metals are ("coductive plastics"). Those new materials will be in the near future a true revolution on several technology fields. En el presente trabajo se explica en términos asequibles, al no especialista, lo que son los Metales Orgánicos ("plásticos conductores"). Estos nuevos materiales supondrán en un futuro próximo una verdadera revolución en numerosos ámbitos de la tecnología.
La infancia en el esquema mara oniano de las edades de la vida del hombre
Ballester, Rosa
Arbor : Ciencia, Pensamiento y Cultura , 2013, DOI: 10.3989/arbor.2013.759n1005
Abstract: The huge volume of scientific work by Mara ón includes a series of contributions on the subject of the ages of human life. From biological approaches to medical/social issues, such as eugenics, the author presents his individual vision of children defined according to a set of criteria grounded largely in his endocrinological theories. The weight of tradition from classical and Renaissance authors such as the Spaniard Huarte de San Juan, is present both as a historical reference framework and as a means of reflecting on current situations. La ingente obra científica de Mara ón incluye también una serie de aportaciones sobre el tema de las edades de la vida humana. Desde acercamientos biológicos a los de cariz médico-social, como la eugenesia, el autor presenta su particular visión de la infancia definida de acuerdo a una serie de criterios fundamentados, en gran medida, en su pensamiento endocrinológico. El peso de la tradición de la Antigüedad clásica y de autores renacentistas como el espa ol Huarte de San Juan, está presente como marco de referencia histórico y como una forma de reflexionar sobre situaciones actuales.
Influencias del rebec europeo sobre el rabel hispánico a finales de la Edad Media en la Corona de Aragón
Ballester, Jordi
Anuario Musical , 2005,
Abstract: In medieval Europe, the Western rebec emerged and developed as a result of the cross between the byzantine lyre and the moorish rabab. Nevertheless, several iconographical sources point out that this rebec was extraneous to the Spanish music -at least in the ancient Crown of Aragon- until the middle of the 15th-century: in its place we find a kind of rabel tightly related to the moorish rabab. Starting from written documents and iconographical sources, this article shows how the contacts between the Western rebec and the Spanish rabel had alredy started in the Crown of Aragon in the second half of the 14th-century (or at least during the first half of the 15th-century). Fruto de la fusión entre la lyra bizantina y el rabab árabe surgió y se desarrolló en la Europa medieval el rebec europeo. Sin embargo, diversas fuentes iconográficas parecen indicar que la música hispana -al menos por lo que a la antigua Corona de Aragón se refiere- se mantuvo ajena a ese tipo de rebec hasta muy avanzado el siglo XV, conservando entre sus instrumentos un tipo de rabel estrechamente emparentado con el rabab árabe. A partir de fuentes iconográficas y documentos, el presente artículo adelanta ligeramente la cronología mencionada, y muestra cómo -en la Corona de Aragón- los contactos entre el rebec europeo y el rabel hispánico (tipo rabab) se iniciaron ya hacia la segunda mitad del siglo XIV (o durante la primera mitad del siglo XV).
Entanglement accumulation, retrieval, and concentration in cavity QED
Daniel Ballester
Physics , 2009, DOI: 10.1103/PhysRevA.79.062317
Abstract: The ability to accumulate and retrieve entanglement in the fields of two remote cavities with pairs of two-level atoms is discussed. It is shown that this transfer and retrieval can be indeed ideal with a resonant interaction. The case of initial non-maximally entangled atomic pairs is also considered. This leads to the possibility of concentrating entanglement into a single pair at the retrieval stage. A teleportation protocol based on the same setup is presented. This makes possible teleportation with built-in entanglement concentration.
El Programa de Medicina Transfusional de Cuba
Santovenia,José M. Ballester;
Revista Panamericana de Salud Pública , 2003, DOI: 10.1590/S1020-49892003000200019
Abstract: cuba's transfusion medicine program (tmp) is a subsystem of the country's national health system. the tmp's objective is to ensure hemotherapy with blood that is safe and sufficient for all the individuals who need it. the tmp subsystem is made up of the national commission on transfusion medicine, the institute of hematology and immunology, 37 clinical services, 44 blood banks, 120 collection centers, 19 mobile units, and 37 blood certification laboratories. additional facilities include a laboratory for plasma separation, a laboratory that produces leukocyte interferon and transfer factor, and two laboratories that produce reagents for blood classification and blood diagnosis systems. in cuba, blood donation is voluntary. since 1997 approximately 5% of the population per year has donated blood, thus meeting the goal recommended by the pan american health organization of one voluntary blood donation annually for every 20 persons. during 2002, 563 204 blood donations were received, and there were 445 898 transfusions of blood or blood components. all donations are individually screened for hiv 1 and 2, hepatitis b, hepatitis c, and syphilis, thus meeting the country's current regulations. in 2002 these screening measures led to discarding, respectively, 0.12%, 0.60%, 0.71%, and 1.8% of the blood donations. although the prevalence of human t-cell lymphotropic virus i and ii in cuba is very low, this test will soon be added to the screening process.
Pobreza moral
Ballester Ferrán
Gaceta Sanitaria , 2003,
Mathilde Tubau-Bensoussan Mathilde Tubau-Bensoussan
Eliseu Trenc Ballester
Llengua & Literatura , 2013, DOI: 10.2436/l&l.v0i0.65988
Alma y cuerpo, enfermedad del alma y enfermedad del cuerpo en el pensamiento médico de Galeno.
Luis García Ballester
Revista de la Asociación Espa?ola de Neuropsiquiatría , 1996,
Abstract: Uno de los problemas humanos que ha venido preocupando a los médicos y, en general, a la ciencia médica occidental es el de la relación entre cuerpo y alma, tanto en estado de enfermedad como en el de salud. Dicho problema ha sido objeto de abundantes reflexiones por parte de los historiadores de la medicina e historiadores de la filosofía y filólogos interesados en textos médicos, quienes se han esforzado por clarificar las diferentes formas que dicha relación ha tomado a través de la historia y sus implicaciones para la etiología, diagnóstico y tratamiento de las enfermedades
La lógica situacional de Karl Popper y la metodología de la investigación social y educativa
Lluís Ballester
Revista Electrónica de Investigación y Evaluación Educativa , 1999,
Abstract: The reflection on the methodology of the investigation can not forget the contributions to Popper, especially by his formulation to a specific model for the educational and social sciences, that of the situational logic. It is considered a form of methodology based on detailed explanations of the initial conditions (analysis of the social situation: context and subject), the theoretical and empirical models elaboration, and the consideration of the rationality principle. A methodology based in the situational logic is able of rationalising the methodology of the educational theories, as well as recognize the paradigms not positivists so important in the educational investigation

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