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Search Results: 1 - 10 of 228596 matches for " P. Martínez "
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MHP: una oportunidad para la convergencia TV-Internet
Martínez P,Antonio;
Universidad, Ciencia y Tecnología , 2005,
Abstract: current digital technology is mature enough to widen the traditional television (limited to the reproduction of contents) with computational capacity to run multi-media allowing to incorporate richer formats. multi-media home platform (mph) is a standard of the digital video broadcasting (dvd) project which intends to combine digital television (dtv) with internet and the world wide web (www). the result will convert the television distribution net into an interactive multipurpose communication net available to consumers and the industry. it is expected that once it is fully implemented, mhp will operate through cable, optic fiber and non-guided means (including satellite systems). users will have access to supplementary information of the audiovisual contents, watch and, in some cases, participate in television programs, shop on line, select properties in configurable contents (language, camera angle and particularized advertisement) and even navigate through the web. this paper shows the results of a research based on an exhaustive, systematic and rigorous inquiry of various documents related to the mhp standard.
Evaluation of the Gas Turbine Inlet Temperature with Relation to the Excess Air  [PDF]
F. Rueda Martínez, A. Rueda Martínez, M. Toledo Velazquez, P. Quinto Diez, G. Tolentino Eslava, J. Abugaber Francis
Energy and Power Engineering (EPE) , 2011, DOI: 10.4236/epe.2011.34063
Abstract: This paper shows the effect of excess air on combustion gas temperature at turbine inlet, and how it determines power and thermal efficiency of a gas turbine at different pressure ratios and excess air. In such a way an analytic Equation that allows calculating the turbine inlet temperature as a function of excess air, pressure ratio and relative humidity is given. Humidity Impact on excess air calculation is also analyzed and presented. Likewise it is demonstrated that dry air calculations determine a higher level for calculations that can be performed on wet air.
Acercamiento a la divulgación de salud en webs periodísticas nacionales cubanas
Pérez Martínez,Alina;
ACIMED , 2012,
Abstract: we have characterized the dissemination of health from the perspectives of digital journalism and specialized in selected cases of seven cuban news web: granma, juventud rebelde, trabajadores, bohemia, mujeres, alma mater and somos jóvenes, which were published in the second half of april. we conducted a qualitative research by a description study of multiple cases using documentary research techniques and content analysis. it was found errors in content and in spelling scientific terms. disclosure isolated language elements were found and most information was not properly contextualized. the use of sources was limited and they did not include scientific publications. the predominant genre was information. we had as result a limited use of interactivity and of hypertext and multimedia internet resources. it was concluded that press coverage of health issues did not reach the level of expertise and it did not take advantage of the possibilities of digital journalism.
Cultura organizacional: algunas reflexiones a la luz de los nuevos retos
Pérez Martínez,Armenio;
Revista Venezolana de Gerencia , 2009,
Abstract: the objective of the article ?organizational culture: some reflections in the light of new challenges? is to analyze the concept of organizational culture, based on the contemporary situation of organizations, as well as to describe the relationship between organizational culture and organizational strategy. to accomplish this, historical-logical theoretical methods were used to study the conceptual antecedents; analysis-synthesis and dialectical methods were used when performing the analyses. fundamental results show that some common and invariable characteristics in the concept of organizational culture stand out permitting a valuation from the epistemological viewpoint of the possibility of conceiving new focal points for the topic of culture in organizations, as well as the relationship between organizational culture and organizational strategy.
La comunicación sobre la salud en medios digitales cubanos
Pérez Martínez,Alina;
Revista Cubana de Salud Pública , 2011, DOI: 10.1590/S0864-34662011000300010
Abstract: introduction the creation of an electronic health journal aimed at the general non-specialized audience requires knowing the previous history of this topic in the national electronic publications. objective to characterize the dissemination of health information in selected documentes from seven cuban press websites: gramma, juventud rebelde, trabajadores , bohemia, mujeres, alma mater and somos jóvenes, all published in april 2009. methods descriptive study of multiple cases using documentary research and content analysis techniques under a qualitative perspective. results the approach to health dissemination was not significant, the contents did not support health promotion strategies and most of them did not relate with the health priorities of the ministry of public health in cuba. among those that dealt with priority contents, there were no topics about water, environmental protection and vector control, drug addiction, mental disorders, oral and dental diseases, disability, health at school, occupational health, care of the older adult and others. just 5.8% of these articles reflected health policies but they were addressed implicitly rather than explicitly from a scientific perspective. the curative approach was predominant. conclusions health topics in the studied documentes neither focused on health dissemination nor backed the health promotion strategies and priorities of the ministry of public health.
Queratoquistes maxilares: marsupialización
Martínez Pérez,D.;
Revista Espa?ola de Cirugía Oral y Maxilofacial , 2006, DOI: 10.4321/S1130-05582006000400002
Abstract: the odontogenic keratocyst is a tumor-like cystic with a capsule that is formed of squamous epithelium originating from dental lamina or from primordial odontogenic epithelium. radiologically, radicular resorption is rare. the most important differential diagnosis is the follicular cyst that has a characteristic squamous coating of a variable thickness. treatment for odontogenic keratocysts is the object of constant discussion as the rate of recurrence published is high (around 30%). the standard treatment is enucleation, but given that the capsule is very fine and friable, it tends to break into fragments during extraction. incomplete resection of the capsule, as well as the presence of microcysts in the surrounding connective tissue, makes recurrence or tumor persistence more likely. the alternative is treatment by means of decompression and marsupialization.
Determinantes sociales de salud como herramienta para una mejor intervención de enfermería
Martínez Pérez,Misleny;
Revista M??dica Electr?3nica , 2009,
Abstract: investigations in the nursery field have stopped in knowing and deepening in the risk facts that could affect, in one or another way, the individual, the family or the community. there might be risk facts in any setting favoring diseases, like physical environment (infectious agents, drugs or chemical substances), psychic condition (stress), and social background (behavior and life styles, socioeconomic characteristics, way of life, level of life) and inherited facts. for the nursery staff, recognizing risk facts is relevant because it allows their identification and correcting their effects. that is why it is very important to highlight a risk approach through the profession's scientific method, nursery care process. its capacity of solving is inherent in taking in to account actions from the point of view of the participants motivational implication, adapting them to population groups ordered by age, personal and group characteristics, based on the micro and macro-social influences as expression of the developmental social situation in a context of health actions contributing to improve the populations health status, all of that through the health social determinants, the global framework explaining the dimension of the society stratification and vulnerability complexness and its impact on health. the structural determinants: entering, education, sexuality, genre and ethnicity, conform an explaining base, besides the traditional lineal explanation, cause-effect, of the health impact, when involving intermediary determinants conditioning vulnerability, exposition and health answer.
Comercio y producción normativa en la crisis del antiguo régimen hispano: Examen histórico-jurídico de la orden apócrifa de 1810
Martínez Pérez,Fernando;
Revista Opinión Jurídica , 2006,
Abstract: this article aims at establishing an analysis from the history of law on the so-called apocryphal order which in may of 1810 liberalized the commerce in the indies. this case is a significant example of the law-creation processes in the hispanic world during the crisis of the old regime. upon examining the cause pursued against the authors of that order, the article exposes two kinds of normative production that are respectively expressive of two conceptions -the old one and the contemporaneous one- over the administration of power in the hispanic constitutionalism at the beginning of the 21st century.
Sistematización de la experiencia en 2 a?os de trabajo. Consejo Popular Arimao
Martínez Pérez,Misleny;
Revista Cubana de Enfermer?-a , 1998,
Abstract: the community and social participation as an action has been part of the daily life every group and community. a descriptive and qualitative study of the 2-year period 1994-1996 was conduceted to determine the hygienic, sanitary, socioeconomic, sports, cultural and health transformation occurred at the circumscription # 73 of the abalcón arimao@ people's council, in la lisa municipality, which is located in an insalubrious suburb with a high criminal rate, school dropout and unemployment, that is subjected to social actions. the method of experience systematization of oscar hara in 5 times was applied and included in the living process of this community in addition to life histories. the most important achievement was to gather all the social members of the community, with their mobilization capacity, under the leadership of the main conductors of the process through an innovative methodology starting from its context. positive changes were observed in the life style and the health status of the population.
Prevalencia del síndrome demencial en la población mayor de 60 a?os
Pérez Martínez,Victor;
Revista Cubana de Medicina General Integral , 2004,
Abstract: a descriptive study was conducted aimed at knowing the prevalence of cognoscitive deterioration in a group of aged patients from 3 family physicians' offices of "ana betancourt" teaching polyclinic. all the patients over 60 (303) entered into the study. cognoscitive deterioration was observed in 49 of them with an estimated prevalence of 17,4 %. 41 were diagnosed demential syndrome with an average time of evolution of 2 years. 53.7 % of the patients with demential syndrome showed probable dementia in late onset alzheimer's disease. 26,8 % presented a possible vascular dementia, whereas 19,5 % exhibited a probable mixed dementia.the degree of cognoscitive deterioration had a relation with the probable diagnosis causing demential syndrome. the mental deterioration degree proved to be higher in the elderly suffering from probable dementia in late onset alzheimer's disease.
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