The Shullcas River is born in the Chuspicocha and Lazo Untay lagoons located on the western ankof the Huaytapallana, it is the main source of water for human consumption in the city of Huancayo.The objective of the research work is to apply the Box - Jenkins, and Holt - Winters models forthe forecast of the monthly ows of the Shullcas river in the Chamisería station. The Holt -Wintersmultiplicative model is not applicable because the predicted monthly ows have a secular tendencyThe ARIMA model (1,0, 0)(2, 1, 1)12 is the most suitable for the forecast of monthly ows becausethey have the lowest value of the Akaike information criterion (0, 551)

The Shullcas River is born in the Chuspicocha and Lazo Untay lagoons located on the western ankof the Huaytapallana, it is the main source of water for human consumption in the city of Huancayo.The objective of the research work is to apply the Box - Jenkins, and Holt - Winters models forthe forecast of the monthly ows of the Shullcas river in the Chamisería station. The Holt -Wintersmultiplicative model is not applicable because the predicted monthly ows have a secular tendencyThe ARIMA model (1,0, 0)(2, 1, 1)12 is the most suitable for the forecast of monthly ows becausethey have the lowest value of the Akaike information criterion (0, 551)

Due to the rise of Social Media, the management of online reputation crises becomes increasingly important in the agenda setting of the media, in the teaching of the profession of communication management, as well as its practice. The peculiarity of communication flows in the digital ecosystem, the speed, scope and interactivity of social networks means that crises managed in the digital environment are characterized by great impact and difficulty in containing unwanted effects. They require a detailed analysis, good preparation and contingency plans, which in turn must be reflected in the media, professional and academic analyzes framed as failures, good practices or recommendations based on the theory, praxis and analysis of the facts. A study has been devised to cover three areas of information on online crisis cases: “journalistic”, “scientific” and “professional”. 10 yea...

Resumen:       El objetivo de la investigación fue determinar cómo ha influido el COVID 19 en el desarrollo empresarial del Perú, tomándose como muestra a 100 personas al azar dividas en cuatro grupos de acuerdo a sus edades. Los materiales y métodos utilizados han sido el cuestionario de preguntas utilizándose el modelo mixto sostenido en la investigación cuantitativo y cualitativo, de tipo descriptivo – correlacional, la muestra estuvo conformada por 100  personas al  azar de ambos sexos. Se han  obtenido resultados importantes como que el 51% de las personas encuestadas no cuentan con un trabajo estable, por lo que se les considera informales, así mismo el 74% considera que el Perú caerá en una recesión económica, así mismo el 54% manifiesta no haber realizado         1 Universidad Andina Néstor Cáceres Velásquez. Jul...