La presente tesis tiene como finalidad encontrar las variaciones de pérdidas de cargas que se originan en tuberías con flujo presurizados de PVC y accesorios, por la que se requiere un instrumento el cual ha sido elaborado para fines prácticos y también para proveer al laboratorio de hidráulica de un Banco de Pruebas para Pérdidas de Carga en tuberías y accesorios de diámetros de 1’’ y 1 ½’’, que sea funcional y útil para el aprendizaje de quienes realizan prácticas en este laboratorio. Para cumplir con este objetivo, en primer lugar, se tuvo que investigar el tema para entender el procedimiento de cálculo de las pérdidas de carga donde estudiamos los diferentes métodos y fórmulas como son la ecuación general de energía, ecuación de Darcy Weisbach, Diagrama de Moody, etc. Después se diseñó el banco de pruebas usando el programa AutoCad para dibujar los planos...

The correlations among personality, academic performance and other variables in 170 university students were studied, using two instruments validated into the population: the NEOPJ-R, and the EPPS. Other variables as age, study level, self perception of academic achievement and self perception of motivation, and sources of support were included. Jt was confirmed the reliability and validity of both tests and the correlations between them. The results showed associations among academic performance and conscientiousness, endurance,change, and aggression. The academic performance was better explained by achievements triving, deliberation, change, self perception of academic achievement and age.

Se investigó la relación entre personalidad, rendimiento académico y otras variables en 170 universitarios, mediante dos instrumentos validados para esta población: el NEO PI-R de Costay McCrae y el EPPS de Edwards4• Se consideró las variables edad, ciclo académico, percepcióndel rendimiento, de la propia motivación para estudiar, y fuentes de apoyo. Se confirmo la validez y confiabilidad de ambas pruebas y sus respectivas correlaciones. Se encontraron asociaciones entre el rendimiento y conciencia, perseverancia, cambio y agresión. El rendimiento fue mejor explicado por la aspiraciones de logro, reflexión, cambio, percepción del rendimientoy edad del estudiante.

The correlations among personality, academic performance and other variables in 170 university students were studied, using two instruments validated into the population: the NEOPJ-R, and the EPPS. Other variables as age, study level, self perception of academic achievement and self perception of motivation, and sources of support were included. Jt was confirmed the reliability and validity of both tests and the correlations between them. The results showed associations among academic performance and conscientiousness, endurance,change, and aggression. The academic performance was better explained by achievements triving, deliberation, change, self perception of academic achievement and age.

El objetivo general del diseño era obtener una muestra representativa de alumnos de 4° grado de educación primaria de menores, de modalidad escolarizada, de centros educativos polidocentes completos urbanos y rurales a nivel nacional. Esta muestra debía permitir estimaciones del rendimiento en las materias de Matemática y Lenguaje, tanto globales como por departamento, área y gestión, con confiabilidad de 95% y errores de estimación no mayores al 5%. La evaluación proporcionaría información agregada, es decir no para cada alumno, ni para cada escuela, docente o director. Para que esto fuera posible, se habría necesitado una muestra suficientemente grande por población objetivo y la investigación no pretendía dar resultados para cada una.

Estudio correlacional que identifica las dimensiones de personalidad, el tipo de ansie-dad y las características sociodemográticas de alumnos de un centro preuniversitario. Se trabajó con 31 R participantes de ambos sexos (43.8% mujeres y 56.2% hombres), que entre 16 y 19 años. Se los evaluó con los siguientes instrumentos: (a) NEO PI-R de Costa y McCrae (1992), (b) Inventario de Ansiedad Estado-Rasgo de Spielberger (IDARE, 1975) y (e) reporte de los tutores. Los resultados confirman la presencia de una estructura factorial básica de cinco dimensiones. Asimismo, revelan correlaciones significativas entre el C.l., características de personalidad asociadas al factor concien-cia e ingreso a la universidad. Entre las facetas que correlacionan con el ingreso desta-ca la autodisciplina. Finalmente, se discuten los resultados.

This study explores the confiability and factorial structure of three scales measuring chronic procrastination: Scale of General Procrastination (EPG. Lay. 1986). Adult Procrastinatio Inventory (lPA. McCown & Johnson as cited in Ferrari. Johnson & McCown. 1995) and the Scale of Procrastination in Decision-Making (PTF. Mann. 1982). The sample included 514 adults between 20 and 65 years of age from Lima. The three scales showed high levels of intemal consistency and factorial analysis showed three factors for EPG and IPA and one factor for PTD A second degree factorial analysis suggested the presence of only one factor based on the grouping of items of the EPG and IPA scales The study did not find theoretically relevant dlfferences in chronic procrastination according to gender, age or education level. However,with respect to socioeconomic status. there were higher levels of chroni...

This correlational study identifies personality dimensions, type of anxiety and sociodemographic characteristics of students from a preuniversity center. 1t was conducted with 318 participants of both sexes (43.8% female and 56.2% male) whose ages range from 15 to 19 years old. They were assessed with the following instruments: Costa and McCrae's Persona1ity lnventory NEO PI-R (1992), Spielberger's State-Trait Anxiety lnventory (STAI, 1975) and tutors' reports. Results confirm the presence of a basic factor structure of five dimensions: Likewise, they also reveal significant correlations among Intellectual Quotient (IQ). personality characteristics related to Conscientiousness factor and admission to university. Self-discipline stands out among the facets that correlate with admission. Finally, results are discussed.

No contiene resumen

This study explores the confiability and factorial structure of three scales measuring chronic procrastination: Scale of General Procrastination (EPG. Lay. 1986). Adult Procrastinatio Inventory (lPA. McCown & Johnson as cited in Ferrari. Johnson & McCown. 1995) and the Scale of Procrastination in Decision-Making (PTF. Mann. 1982). The sample included 514 adults between 20 and 65 years of age from Lima. The three scales showed high levels of intemal consistency and factorial analysis showed three factors for EPG and IPA and one factor for PTD A second degree factorial analysis suggested the presence of only one factor based on the grouping of items of the EPG and IPA scales The study did not find theoretically relevant dlfferences in chronic procrastination according to gender, age or education level. However,with respect to socioeconomic status. there were higher levels of chroni...

This correlational study identifies personality dimensions, type of anxiety and sociodemographic characteristics of students from a preuniversity center. 1t was conducted with 318 participants of both sexes (43.8% female and 56.2% male) whose ages range from 15 to 19 years old. They were assessed with the following instruments: Costa and McCrae's Persona1ity lnventory NEO PI-R (1992), Spielberger's State-Trait Anxiety lnventory (STAI, 1975) and tutors' reports. Results confirm the presence of a basic factor structure of five dimensions: Likewise, they also reveal significant correlations among Intellectual Quotient (IQ). personality characteristics related to Conscientiousness factor and admission to university. Self-discipline stands out among the facets that correlate with admission. Finally, results are discussed.