The potato (Solanum tuberosum) is an important source of starch which is underused in Peru, as are mainly imported potato starch, for has not been achieved yet, industrialization starch extraction is a success. This study aimed to obtain, characterize and modify chemically by acetylation, starch of a commercial potato variety, Unique. Extraction was performed with water and chemical modification was performed by acetylation using acetic anhydride at different levels (% v/w starch): 5, 10 y 15%. Native starch and modified starch were characterized: proximate composition, clear gel, apparent viscosity and stability to the freeze, also the percentage of acetyl groups (GA) was measured. The extraction yield was 16.5% and the apparent viscosity of native potato starch was 25000 mPas. Also starch modified with 15% acetylation for application in a cream ice cream because of their functional ...

The potato (Solanum tuberosum) is an important source of starch which is underused in Peru, as are mainly imported potato starch, for has not been achieved yet, industrialization starch extraction is a success. This study aimed to obtain, characterize and modify chemically by acetylation, starch of a commercial potato variety, Unique. Extraction was performed with water and chemical modification was performed by acetylation using acetic anhydride at different levels (% v/w starch): 5, 10 y 15%. Native starch and modified starch were characterized: proximate composition, clear gel, apparent viscosity and stability to the freeze, also the percentage of acetyl groups (GA) was measured. The extraction yield was 16.5% and the apparent viscosity of native potato starch was 25000 mPas. Also starch modified with 15% acetylation for application in a cream ice cream because of their functional ...

This research raises as a problem the relationship between self-esteem and moral judgment fifth graders of secondary schools in metropolitan Lima. The central hypothesis formulated is the relationship between the score of moral judgment and self-esteem score. The simple consisted of 400 students between 16 and 17, male and are in fifth year of high school, from three schools in metropolitan Lima consists of: two private and one state. They answered a Sociomoral Reflection Test (SROM) of Gibbs and Widaman and Coopersmith and Self-Esteem Inventory of Coopersmith. The research design was correlational. The results indicate that there are significant differences in moral judgment and self-esteem among state colleges and private colleges. The private colleges had more score. The conclusion was also found that there is significant positive correlation between self-esteem and moral judgment.

La presente investigación plantea como problema la relación entre autoestima y juicio moral en estudiantes de quinto año de secundaria de colegios de Lima metropolitana. La hipótesis central que se formula es la relación entre el puntaje de juicio moral y el puntaje de autoestima. La muestra estuvo conformada por 400 estudiantes entre 16 y 17 años, de sexo masculino y que están en quinto año de secundaria, provenientes de tres colegios de Lima metropolitana, conformados por dos particulares y un estatal. Se aplicaron el inventario de reflexión sociomoral (SROM) de Gibbs y Widaman y el inventario de autoestima de Coopersmith. El diseño de investigación fue correlacional. Los resultados indican que existen diferencias significativas de juicio moral y autoestima entre colegios estatales y particulares, obteniendo los particulares mayor puntaje. Asimismo, la conclusión encontrada...

Revista de difusión cultural, publicada por el INC, filial Ancash, en febrero de 1982. Cuenta con la colaboración de autores locales y notas informativas sobre la actividad institucional del INC-FA. Contenido: Nota editorial -- Ancash en la Historia. VI Semana de Ancash: periodistas, intelectuales y artistas pidieron su oficialización, por Edmundo Vargas G. -- Arqueología en Ancash, por Lorenzo Samaniego -- Homilia. Bodas de plata sacerdotales del obispo de Huaraz, por Eduardo Velásquez T. -- Presentación del libro “La Paloma” de Camila Estremadoiro -- Actividades del INC-FA. Días culturales -- Literaria. Tres momentos de la poesía en mi tierra y una nota, por Lujani Domunde Maraval -- El Paria, por Leoncio Maguiña M. -- Arte. Exposición de acuarela de Humberto Chávez B.

Objetivo: Determinar la influencia de los medios de comunicación informal en la programación y publicidad televisiva en la ciudad de Juliaca. Material y métodos: se realizó un estudio cuantitativo, básico, explicativo y no experimental, se utilizó cuestionarios y guías de entrevista a gerentes, administradores o encargados de los medios televisivos. Resultados: Los datos procesados y analizados indicaron que de acuerdo con la prueba de hipótesis Chi-cuadrada correspondiente, muestra que para el caso de los medios de comunicación su X\ = 7 es mayor que X2t = 5,99 y para el caso de la programación su X/= 19,14 es mayor que X2t = 7,82; lo que significa que como la prueba fue bilateral y se ubicó en la región crítica de rechazo, entonces se aceptó la hipótesis alterna. Conclusiones: los medios de comunicación informal influyen deficientemente en la programación y publicidad ...

This study was supported by IMARPE(Peru), the research unit LOCEAN‐IPSL (UMR 7192 CNRS/IRD/UPMC/MNHN) in France and the projects JEAI MIXPALEO,PALEOPECES, PALEOTRACES, DISCOH, PCCC and the‘CátedraCONCYTEC en Ciencias del Mar’. We thank Jorge Vasquez (JPL) for pro-viding the 4km resolution GHRSST‐PP SST data and David Correa forperforming the objective interpolation of these data. Finally, we thankFrancisco Chavez and Monique Messié, with whom we sustained sounddiscussions that helped us for the preparation of this paper.