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Search Results: 1 - 10 of 481663 matches for " T.M.; Marcos "
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Cirugía cardíaca en pacientes de edad avanzada Cardiac surgery in elderly patients
S. Just,T.M. Tomasa,P. Marcos,L. Bordejé
Medicina Intensiva , 2008,
Abstract: Objetivo. Comparar la morbilidad y la mortalidad de los pacientes de cirugía cardíaca de acuerdo a la edad inferior o superior a 75 a os. Dise o. Estudio descriptivo retrospectivo. Pacientes. Dos mil cuatrocientos setenta pacientes consecutivos ingresados en el postoperatorio inmediato tras cirugía cardíaca en nuestra Unidad de Medicina Intensiva entre noviembre de 2000 y diciembre de 2005. De ellos, 1.983 eran menores de 75 a os y 497 mayores de 75 a os. Se han incluido todos los pacientes con cirugía, tanto programada como urgente y emergente. Principales variables de interés. Factores de riesgo cardiovascular (diabetes mellitus, hipertensión arterial y dislipidemia), European System for Cardiac Operative Risk Evaluation (EuroSCORE) y EuroSCORE logístico, estancia, mortalidad, complicaciones durante la estancia en la Unidad de Cuidados Intensivos (UCI). Resultados. La mortalidad hospitalaria de los pacientes mayores de 74 a os fue significativamente superior (9,2% frente a 4,3%, p < 0,05). La morbilidad de los pacientes mayores de 74 también fue superior (EuroSCORE 8,2 ± 2,7 frente a 4,9 ± 3,3, p < 0,001). Tanto la estancia en la UCI como la estancia hospitalaria fueron significativamente superiores en los pacientes mayores de 74 a os. Conclusiones. En nuestra serie tanto la morbilidad como la mortalidad de los mayores de 74 es superior, lo que conlleva peores resultados en la cirugía cardíaca de estos pacientes. Objective. To compare morbidity and mortality of cardiac surgery patients according to age below or above 75 years. Design. Descriptive retrospective study. Patients. A total of 2,470 consecutive patients admitted to our Intensive Medicine Unit between November 2000 and December 2005 who were in the immediate postoperative period after cardiac surgery. Of these patients, 1,983 were younger than 75 years and 497 were older than 75 years. Main variables of interest. Cardiovascular risk factors (diabetes mellitus, arterial hypertension and dyslipidemia), EuroSCORE (European System for Cardiac Operative Risk Evaluation) and logistic EuroSCORE, length of stay, mortality, complications during Intensive Care Unit (ICU) stay. Results. In-hospital mortality of patients older than 74 years was significantly higher (9.2% versus 4.2%, p < 0.05). The morbidity of patients over 74 years of age was also significantly higher (EuroSCORE 8.2 ± 2.7 versus 4.9 ± 3.3, p < 0.001). Both ICU stay and hospital stay were significantly higher in those over 74 years of age. Conclusions. In our series both morbidity and mortality were higher in those older than 74 years
Graphical exploration of two-dimensional functions an aid to mastering fundamental calculus concepts
T.M. Steyn
South African Journal of Education , 2002,
Abstract: Technology has become an integral part of all educational activities and can be viewed as a powerful lever to promote the understanding of fundamental mathematical concepts that underpin the study of calculus. This article reports on action research activities during 1993-1998 at the University of Pretoria, which focused on aspects that constitute the coherence between teaching, learning, mathematical conceptualisation and the use of computer graphing technology. Results identify some features of graphing utilities that are necessary to enhance fundamental concepts. The principle findings are that the meaningful combination of graphical exploration and graphical analysis according to a well thought-out didactical approach is necessary in order to incorporate technology successfully into mathematics instruction. (South African Journal of Education: 2002 22(1): 47-55)
The Human Resource Management Challenges of Post Consolidation Mergers and Acquisitions in Nigeria s Banking Indsutry
T.M. Fapohunda
International Business Management , 2012, DOI: 10.3923/ibm.2012.68.74
Abstract: This study examines the human resources challenges of the post consolidation mergers and acquisition in Nigeria s banking industry. The industry went through structural changes which has posed great human resources management challenges. The study adopted the survey research design. A sample of 115 respondents was selected from six of the banks that merged to become two. The simple random sampling technique was used in the selection of sample elements. The instrument for data collection was the questionnaire. Four hypotheses were tested. The hypotheses tested indicated a relationship between the mergers and acquisitions and productivity, job security, labour turnover and level of level of technological innovations. The implementation of the consolidation policy induced a shake-off in the industry which infused a new set of human resource challenges in the sector; some of which include those of job-cutting, outsourcing, downsizing, rightsizing, incompatibility in technologies, equipment or corporate culture. The study posits that human resource is an essential part of mergers and acquisitions and should be given adequate emphasis throughout the processes of mergers and acquisitions. Intended objectives may not be achieved when human resources factors are overlooked. For successful integrations, it is imperative that merger talks and negotiation should go beyond the balance sheet figure to an in-depth understanding and evaluation of cultural compatibility that will promote the realization of the objectives. With the emergence of mega-banks employees must be given necessary training and skill development for the current level of activities in today s banks.
A Theory of Structural Constraints on the Individual’s Social Representing? A Comment on Jaan Valsiner’s (2003) “Theory of Enablement”
Nebe, T.M.
Papers on Social Representations , 2003,
Abstract:
Electronic journals.
T.M. Graber
Hellenic Orthodontic Review , 2003,
Abstract:
Spectro-Structural Characterization of Chalcogenide Films Containing Cd, Te and Se  [PDF]
T.M. Rajakumar, C. Sanjeeviraja, R. Chandramani
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2011, DOI: 10.4236/jmmce.2011.1011080
Abstract: Chalcogenide films find many applications in electronics as memory device, laser writer & xerography. To tailor the property to the requirement, various compositions of Cd, Te and Se have been deposited and characterized optically. Films have been deposited by thermal evaporation as well as by electron beam evaporation. Thermal analysis such as TGA, DTA and DSC has been carried out before deposition to ensure the composition. Dependence of Eg on the composition has been justified from (T% data) Transmittance measurements. Drastic changes in optical property due to annealing in the range 200°C to 400°C have been investigated.
AN ASSESSMENT OFWATERSHED DEVELOPMENT PROGRAMME: A STUDY OF MANDHWAN VILLAGE, DIST. AHMEDNAGAR
T.M.VARAT
Indian Streams Research Journal , 2013,
Abstract: The purpose of this study is to examine the changes exhibited due to implementation of watershed development programme in the study area (Mandhwan Village, Dist. Ahmednagar) in terms of change in landuse, cropping pattern, soil and water conservation, socio-economic development and status of women employment. The study was based on beneficiaries' household survey. It involved acquisition of data through questionnaire survey from a sample of 25% household using systematic random sampling procedure. Data was collected both for pre and after the implementation of watershed development programme. (1990-91 to 2000-01). Besides, intensive field observation was conducted for collecting relevant data. The study revealed that due to implementation of watershed development programme there is increase in net shown area, gross cropped area, area under irrigation, change in cropping pattern, yield per hector, ground water level, and status of women employment in the village. This transformation shows the significance of implementation of such programmes at village level for the upliftment of rural life.
Cirugía cardíaca en pacientes de edad avanzada
Just,S.; Tomasa,T.M.; Marcos,P.; Bordejé,L.; Torrabadella,P.; Moltó,H.P.; Moreno,J.A.; Castro,M.A.;
Medicina Intensiva , 2008,
Abstract: objective. to compare morbidity and mortality of cardiac surgery patients according to age below or above 75 years. design. descriptive retrospective study. patients. a total of 2,470 consecutive patients admitted to our intensive medicine unit between november 2000 and december 2005 who were in the immediate postoperative period after cardiac surgery. of these patients, 1,983 were younger than 75 years and 497 were older than 75 years. main variables of interest. cardiovascular risk factors (diabetes mellitus, arterial hypertension and dyslipidemia), euroscore (european system for cardiac operative risk evaluation) and logistic euroscore, length of stay, mortality, complications during intensive care unit (icu) stay. results. in-hospital mortality of patients older than 74 years was significantly higher (9.2% versus 4.2%, p < 0.05). the morbidity of patients over 74 years of age was also significantly higher (euroscore 8.2 ± 2.7 versus 4.9 ± 3.3, p < 0.001). both icu stay and hospital stay were significantly higher in those over 74 years of age. conclusions. in our series both morbidity and mortality were higher in those older than 74 years of age group, which entails worse results in cardiac surgery of these patients. keywords: cardiac surgery, sternotomy, cardiopulmonary bypass, mortality, postoperative care, elderly.
Development of strut and tie models for simply supported deep beams using topology optimization
Praveen Nagarajan,T.M. Madhavan Pillai
Songklanakarin Journal of Science and Technology , 2008,
Abstract: Generally, structural members can be broadly divided into two regions, namely B, or Bernoulli regions, where the strain distributions are linear and D, or Disturbed regions, where the strain distributions are nonlinear While well defined theories are available for designing B regions, rules-of-thumb or empirical equations are still being used to design D regions although B and D regions are equally important. It has been recently understood that the strut and tie model is an effective tool for the design of both B and D regions. Since this method is a realistic approach, this has found place in many codes like Euro code, American code, Canadian code, Australian code, New Zealand code etc. In a deep beam, the distribution of strain across depth of the cross section will be nonlinear and hence these structural elements belong to D regions. The existing code provisions for the design of simply supported deep beams are inadequate and are empirical in nature. In this paper,the development of strut and tie models for simply supported deep beams using topology optimization is discussed. The design of deep beams using topology optimization is illustrated using an example and is compared with available code recommendations.
Valor diagnóstico del protocolo de fusión de imágenes (PFI) en el procesador IM512P en comparación SPECT cerebral y resonancia magnética cerebral.
Bernal Quispe, Luis. T.M; Lic.
Alasbimn Journal , 2009,
Abstract: Las imágenes en medicina nuclear y radiología son complementarias y su fusión permite una comprensión integrada, respondiendo a la necesidad de entregar al clínico un formato amigable y confiable de la información.Para SPECT (tomografía por emisión de fotón único) o PET (tomografía por emisión de positrones), distintos radiotrazadores (RT) administrados al paciente revelan el estado funcional de órganos y tumores. Por la relativa carencia de referentes anatómicos, SPECT y PET pueden requerir correlación morfológica dirigida. Su fusión con una tomografía computarizada (CT) o resonancia magnética (RM), constituye una pareja de imágenes de distinta modalidad; SPECT/CT, SPECT/RM, PET/ CT o PET/RM, capaz de localizar focos isotópicos en su estructura correspondiente, que puede o no estar alterada.Con el objetivo de evaluar el valor diagnostico de la Fusión de Imágenes en el Procesador de Imágenes IM512P propuesta por el autor como Protocolo a usarse en los servicios de Medicina Nuclear; se dise o un estudio Observacional, Transversal, Comparativo, Retrospectivo; en el Hospital de Policía Luis N Sáenz, durante los meses de enero a julio del 2007. Se realizo la recolección de imágenes e informes médicos, en las técnicas de Spect y Resonancia Magnética, de 38 pacientes para luego en la estación de trabajo del procesador de imágenes realizar la Fusión de las mismas, y así obtener resultados, y comparar con los valores ya establecidos de sensibilidad y especificidad. Los resultados mostraron valores de Sensibilidad de 96,55% con un índice de confiabilidad de 95% entre 88,19% y 100%, Especificidad de 77,78% con un índice de confiabilidad de 95% entre 45,06% y 100%, Valor Predictivo Positivo de 93,33% Valor Predictivo Negativo de 87,50%, para la Fusión de Imágenes en comparación con el Spect Cerebral.Valores de Sensibilidad de 93,55% con un índice de confiabilidad de 95% entre 83,29 Y 100,0%, Especificidad de 85,71% con un índice de confiabilidad de 95% entre 52,65 y 100%, Valor Predictivo Positivo de 96,67% Valor Predictivo Negativo de 75,00%, para la Fusión de Imágenes en comparación con la Resonancia Magnética.
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