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8.798  Articles
1 of 881 pages  |  10  records  |  more records»
In the article, on the basis of observational data the problems of the specific frequency of globular clusters are studied. Possible relationships between them and the absolute stellar magnitude of their host galaxy are considered, where the observational... see more

Nowadays, the Internet of Things (IoT) is inseparable from the industrial revolution 4.0 and society 5.0. IoT allows all aspects to be connected at the same time. In industrial processes, the IoT controls the actuator and monitors the behavior system. Ind... see more

In recent years, the ability of GNSS systems to estimate high accuracy 3D positions has greatly contributed to the development of new monitoring techniques aimed at understanding the mechanisms by which the different Earth processes are generated. This pa... see more

In the present work, the galaxy luminosity function (LF) has been studied for a sample of seven clusters in the redshift range (0.0 ? z ? 0.1), within Abell radius (1.5 h-1 Mpc), in the five SDSS passbands ugriz. In each case, the absolute magnitude distr... see more

No interior do estado de Minas, o crescimento total bruto de matrículas no ensino superior, entre 1991 e 2010, foi de 371,82%, relativamente maior do que o nacional (309,41%). Cabe, portanto, uma análise sobre as formas de polarização e as características... see more

Violencia familiar: óptica desde la niñez. Familial violence, from the perspective of childhoodViolencia familiar: óptica desde la niñez. Familial violence, from the perspective of childhoodCon el objetivo de conocer la magnitud de la violencia intrafamiliar, desde la óptica de la niñez, así como su relación con el alcoholismo y su repercusión en el rendimiento académico del escolar, se realizó un trabajo investigativo, transversal y descriptivo, comparando los resultados entre el grupo de alumnos en el que se reporta violencia intrafamiliar con el que no, mediante la aplicación de una encuesta diseñada al efecto, a los 100 alumnos del 6to grado del Semi - internado de primaria "Manuel Ascunce Domenech" en la Ciudad de Pinar del Río, en el primer cuatrimestre del año 2000. Los resultados se reflejan en las tablas expresadas en valores absolutos y en porcientos, analizando cuando fue prudente la significación estadística para un valor de alfa =0.05; concluyéndose que la encuesta diseñada fue útil para que los niños evidencien la existencia de la violencia en sus hogares; alcanzando una magnitud del 69 %, predominando la de tipo emocional en la mitad de los encuestados y cuando en el seno familiar se ingiere alcohol desmedidamente, se incrementa la presencia de la violencia. El rendimiento académico del escolar se ve influenciado negativamente por la presencia de violencia familiar.DeCS: ALCOHOLISMO. VIOLENCIA. VIOLENCIA DOMICILIARIA. ABSTRACT A cross sectional and descriptive study was aimed at knowing the magnitude of domestic violence related to childhood as well as its relation to alcohol abuse and the repercussion on the academic growth of the child. A survey was made to compare the groups reporting violence and the group non - reporting violence to 100 sixth grade students belonging to "Manuel Ascunce Domenech Elementary School" in Pinar del Río during the four month period of year 2000. Results are expressed in absolute values and percentages analyzing properly the statistical significance giving a value of alpha = 0,05. It was concluded that the survey was useful to clear up the presence of domestic violence, reaching a magnitude (69 %) predominating emotional violence in half of inquired children. Domestic violence increases when alcohol abuse increases. Academic growth is negatively influenced by domestic violence. DeCS: ALCOHOLISM, VIOLENCE, DOMESTIC VIOLENCE.


The object of research is the type of power valves – gate valve or wedge valve. Gate valves or wedge valves take a leading place among power valve. It has minimal hydraulic resistance, an almost linear dependence of the flow rate on the degree of opening,... see more

The object of research is the type of power valves – gate valve or wedge valve. Gate valves or wedge valves take a leading place among power valve. It has minimal hydraulic resistance, an almost linear dependence of the flow rate on the degree of opening,... see more

1 of 881 pages  |  10  records  |  more records»