Mostrando 1 - 20 Resultados de 151 Para Buscar 'García, Jorge', tiempo de consulta: 0.04s Limitar resultados
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We studied the optimun temperature to favor the epitaxial growth of YBa2Cu3O7 layers using threesintering temperatures of 820, 840 and 860℃, by the chemical solution deposition method in SrTiO3[100] monocrystalline substrates. Surface morphology was obtained by optical imaging, which qualitativelycharacterize the homogeneity and the grain presence along the c-axis. The X-ray diffractionconfirms the preferential epitaxial growth (00l) of the YBa2Cu3O7 crystals, resulting in a higher intensityof the profiles (00l) for the temperature of 860℃. The samples shown superconducting behaviourat critical temperature of 90 K, for the three cases.
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This research proposes a Wetland Index (IB) to identify wetlands, located above 3800 meters above sea level. The IB proposal is a summary of Garcia Dulanto's master thesis (2018) and is based on two methods: the first based on the Linear Spectral Unmixing classication that uses spectral signatures selected from characteristic elements of the study area. Spectrally ideal signatures (endmember, EM) were selected to represent: wetlands (wetland EM), rocks (rock EM) and bare soil (soil EM). The second method is based on the biophysical indices or parameters NDVI, NDWI and NDII. The RGB image combination: NDII, NDVI, NDWI shows the wetlands in the study area in yellow tones. The two methods are integrated using Pearson's correlation between the fraction of the endmember-bofedal and those of the bofedales. Maximum and minimum correlation is obtained with the NDWI and NDII indices. With these i...
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OBJECTIVE: To determine fetal complications in pregnant patients with malaria. DESIGN: Prospective study. PATIENTS AND METHODS: Ten fetuses of pregnant patients with malaria by plamodium vivax and falciparum, followed clinically and by ultrasound at Tumbes MINSA hospital. RESULTS: Most frequent complication was acute or chronic fetal distress (80%); there was only one death.
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OBJECTIVE: To show the efficacy of fishing nylon thread were performed to 208 patients. Follow-up was during 2 years. RESULTS: Pregnancy rate 0%. CONCLUSlON: Fishing nylon thread is a adequate suture for voluntary surgical contraception.
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The basic health needs of women are manifested from childhood and are influenced by nutrition, socioeconomic status and sex role (the role assigned by society) and the environment. Under these assumptions, reproductive health is closely linked to the basic and fundamental rights of the person. According to WHO, health is a state of complete physical, mental and social well being and not merely the absence of disease. According to this universal principle, reproductive health means: everyone has the right to reproduce and regulate their fertility, with the full knowledge of the personal and social consequences of their decisions and also has free access to the media that implanted; Women must be able to carry out necessary pregnancy and childbirth safely and that the end result is satisfying and family welfare; the couple should be able to have sex, free relations means unwanted pregnancy...
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El artículo no presenta resumen.
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OBJECTIVE: To show the efficacy of fishing nylon thread were performed to 208 patients. Follow-up was during 2 years. RESULTS: Pregnancy rate 0%. CONCLUSlON: Fishing nylon thread is a adequate suture for voluntary surgical contraception.
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OBJECTIVE: To determine fetal complications in pregnant patients with malaria. DESIGN: Prospective study. PATIENTS AND METHODS: Ten fetuses of pregnant patients with malaria by plamodium vivax and falciparum, followed clinically and by ultrasound at Tumbes MINSA hospital. RESULTS: Most frequent complication was acute or chronic fetal distress (80%); there was only one death.
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The cost of implantation of a forest species not only contemplates the plantation activity itself, but also that of its subsequent replacement of failures. The objective of this study was to describe and determine the performance of the control tasks of picking and replacement of failures in planta­tions of Prosopis alba (white carob tree) under the influence of edaphic factors such as pH and electrical conductivity. The research focused on the framework of the Santiagueño Forest Program (PFS), Argentina, executed during the 2017–2018 afforestation campaign. The sample consisted of 3 producers with plots located in the Robles department of the Santiago del Estero province. The field work allowed to record the tasks of control of uprooting and replacement of failures and in turn, to evaluate the establishment of the plants under different edaphic factors. The study reflects an average...
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The present paper discusses the historic facts of the past: things happen, people involved, stories. Then, we point to the idea of dominant narrative of history, a positivistic view. Next, there are arguments sustaining the vision for a collective memory. Both positions are confronted focusing in similarities and differences. There were more differences. Authors subscribe the collective memory vision, besides the ambiguous an inaccurate it results. Finally, as an exercise, this approach is applied to the Mexican case, so against the official version of the success story there are alternative visions more open and wide about the recent past events. This way, we obtain different narrative versions without taken some of them as the truth. As a result heroes are demythologized.
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Disclosed cytologic features of a cell type with diagnostic value in chickenpox , called Giant Cell Features , Multinucleated Giant Cells , Atypical cells or " pseudotumoral " . These cells acquire cyto logical morphologically distinguishable characteristics , dye , quantitative , and fine percentage , according to the stage of the rash variceloso are. In phase transparent vesicle are usually round or oval , with one or two giant nuclei , acidophilic staining affinity discreetly . In phase turbid or opalescent vesicle there is a tendency of irregular deformation of cells and nuclear multi-segmentation ( multinucleated ) and acquire more acidophilic staining in the previous phase. At the stage of pustule are often spherical with giant core and take an acidophilus frankly coloring with Leishman . The cytoplasm of these cells is scarce and generally takes basophilic staining in the three ph...
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No presenta resumen
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tesis de grado
La investigación titulada “La bancarización y su incidencia en los estados financieros de la empresa televisión San Martin S.A.C., distrito Tarapoto, año 2015”, es del tipo aplicativa, descriptiva y observacional; según el nivel de investigación es explicativa y exploratoria; la recolección y análisis de datos es de tipo cuantitativo. Luego de aplicado el proceso metodológico los instrumentos de ratios de solvencia, rentabilidad y de gestión; y analizado los resultados obtenidos se arriban a la conclusión de que las aplicaciones de la bancarización en la Empresa TV SAN, es importante porque gracia a su aplicación ayuda a contribuir con las recaudaciones. La incidencia de la bancarización en los estados financieros de la Empresa Televisión San Martín SAC en el año 2015, desde el punto de vista contable – tributario es elevada, pues si bien existen gastos no bancariz...
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objeto de conferencia
ABSTRACT This work aimed to optimize the production capacity of oyster mushroom (Pleurotus ostreatus), using as substrates vegetables residues: pine chips (Pinus sylvestris), eucalyptus chips (Eucalyptus globulus) and corn cob (Zea mays). For this the Simplex Centroid design (mixture design) was used, considering 10 treatments (0 – 100% of the three substrates). An ANOVA was applied to evaluate differences (p<0.05) among the treatments. As main results, pine chips increased the production capacity of oyster mushrooms and eucalyptus chips reduced it. By the desirability function of this methodology, the optimum mixture of substrates was found. This mixture should be made of 100% of pine chips, 0% of eucalyptus chips and %g of corn cob. Finally, a mathematical model was obtained (R2>0.98) which predicts the production capacity of oyster mushrooms using these three substrates.
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Reading comprehension is a competence that can be formally developed in the educational institution. Objective: Implement a workshop-course to assess its effects on reading comprehension, use of strategies and motivation for reading. Method. 13 students from the psychology degree of a Mexican public university participated. Two instruments were applied before and after the intervention to compare the values of the variables studied. The workshopcourse consisted of promoting the use of reading strategies linked to specific levels of understanding: literal, information reorganization, inferential, critical and appreciative. Results. There were increases in reading comprehension, use of strategies and motivation towards reading. The results are discussed taking into account the percentages of student performance, the size of the effect of the intervention and the results of the statistical ...
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Analiza el seguro de responsabilidad, su aplicación, la legislación y el procedimiento de la víctima de acción directa contra el asegurador del responsable del daño. Explica que la multiplicación de los riesgos en la sociedad moderna y la evolución consiguiente de la teoría de la responsabilidad extracontractual, determinó un agravamiento de la responsabilidad civil. La doctrina clásica fundada en la noción de la culpa no ofrecía protección suficiente a las víctimas del siglo veinte. El desenvolvimiento de la fuerza motriz y de las máquinas convirtió los accidentes del trabajo en una tragedia cotidiana. No se podía ya exigir al obrero, víctima de fuerzas incontrolables, la prueba de la culpa del patrón. Semejante prueba, imposible a menudo, relegaría la doctrina de la responsabilidad al mundo teórico. La doctrina se esfuerza por coordinar las nociones fundamentales d...
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tesis de grado
El trabajo tiene como objetivo el diseño e implementación del proyecto de auditoría continua en una empresa líder del sector pesquero en el Perú, dedicada a la producción y exportación de harina y aceite de pescado, localizada en Lima. El desarrollo de la auditoría continua en la compañía se inició en julio del 2017 con el desarrollo de dos scripts llamados “cambios en la condición de pago de órdenes de compra” y “adelantos de pago a proveedores no aprobados por gerencia central de administración y finanzas”, estableciéndose como objetivo estratégico del área la creación de nuevos scripts cada año, así como la ejecución y desarrollo de dichos scripts trimestralmente. Con tal fin se identificaron, crearon e implementaron controles automáticos a los que se le llamaron scripts. Asimismo, se validaron, monitorearon y se realizó seguimiento a la implementación ...
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