The metabolic process follows a circadian rhythm. Circadian rhythm is influenced by changes in the light/darkness cycles. One of these metabolic processes have to do with lipid synthesis. Lipidic profile quantifies this synthesis. This research was conducted in order to determine the variation of lipidic profile by the variation of light/darkness cycles. Objectives: To determine the effect of light/darkness variation on lipid profile of Rattus norvegicus. Methods: 20 rats (Rattus norvegicus) was used separated in two groups (control and experimental) and housed with variances in light/darkness cycles. Thereafter a blood sample was taken in order to dosage lipid profile (cholesterol, triglycerides, HDL and LDL) before and after variation of light/darkness cycles. Statistical analyses were conducted using Student’s t-test for cholesterol, triglycerides, HDL and LDL Results: Normality of ...

El estudio de investigación tiene como propósito determinar la relación que existe entre las variables de Responsabilidad Social y Comunicación Interna según el personal administrativo de los colegios profesionales de Junín. El estudio corresponde al tipo básico, nivel correlacional; diseño descriptivo correlacional, con muestra de 74 trabajadores administrativos, a quienes se aplica la encuesta, técnica utilizada en la investigación, aplicando los instrumentos que consta de cuestionarios para la encuesta de responsabilidad social y comunicación interna; ambos fueron validados a través de juicio de expertos y se logró obtener la confiabilidad con alfa de cronbach cuyos resultados fueron: 0, 934 para la variable responsabilidad social y 0, 679 para la variable comunicación interna, se utilizó el estadigrafo Rho de Spearman, concluyendo que: existe relación directa y modera...

The hotel sector has a potential set of occupational risks inherent to the activity, which can be generated by the actions of the same job, by the distraction and behavior of the worker or the inadequate conditions to perform their functions; For this reason, the general objective was to determine the relation that exists between Occupational Safety and Organizational Commitment of personnel in the hotel sector, city of Lima- Peru, 2017. Methodologically, it was a descriptive method, correlational level, non-experimental design: descriptive -correlational. The variables are: Occupational Safety and Organizational Commitment. The population was made up of the staff of the hotel companies Monteluna S.A.C. and Inversiones PIMI S.A.C. The sample size was determined by applying the relevant statistical formula, and the sample selection was made through stratified probability sampling and simp...