La presente tesis tiene como propósito determinar si la aplicación de la política de producto influye en la exportación de tapices de la ciudad de Ayacucho, bajo el enfoque de investigación cuantitativo, de nivel correlacional, no experimental y transversal, tomando como muestra informante de 140 artesanos tapiceros de la ciudad de Ayacucho, que brindaron información acerca de la aplicación de política de producto como estrategia de exportación de tapices y para recolectar datos se utilizó el cuestionario, en la tabulación se empleó las técnicas de estadística inferencial. Los resultados nos permitieron concluir que, la política de producto si influye en la exportación de tapices de los artesanos y productores artesanos tapiceros de la ciudad de Ayacucho, y, que la mezcla de productos, la imagen de marca, en los atributos del producto de tapices se identificó que existe ...

Objective: To determine the changes in the position and inclination of the upper incisor and upper lip after orthodontic treatment in a series of 3 clinical cases. Materials and Methods: The three reported clinical cases correspond to adult patients who were treated with fixed orthodontics and premolar extractions. Measurements of upper incisor position (UIP), upper incisor inclination (UII), upper lip position (ULP), and upper lip inclination (ULI) were performed on pre-treatment and post-treatment cephalometric radiographs for assessment of changes. Results: In the first case a variation of -1 mm was found for both the UIP and the ULP, as well as a variation of the UII and the ULI, although in different magnitude. Case 2 presented a 2 mm variation in the UII with minimal changes in the upper lip (Δ ULP = 0 mm and Δ ULI =-0.5 mm) and in case 3 a 2 mm variation was obtained for both II...

El COVID-19, generó ansiedad, tristeza y soledad en las personas tras el aislamiento social obligatorio; aumentando la virtualidad y el uso de redes sociales. Esta investigacion tiene como objetivo determinar la relación entre Soledad y Adiccion a Redes Sociales en 146 universitarios limeños (109 mujeres, 37 varones) de 18 a 30 años. El diseño es correlacional y de tipo no probabilístico de bola de nieve. Se aplicaron las escalas De Jong Gierveld Loneliness Scale y el cuestionario de Adicción a Redes Sociales (ARS). Se encontró correlaciones positivas siendo Soledad y Obsesión por las Redes las que se relacionan con mayor fuerza, mientras que el total de ARS, falta de control y uso excesivo tienen menor magnitud. Así mismo, se encontraron diferencias significativas, pero de magnitud baja entre las puntuaciones comparadas por género. Además, las personas que usan redes sociale...

Introduction: Bolton analysis is used to determine anomalies with respect to the dental mass, for diagnosis and treatment planning purposes, the possibility of using a digital method was introduced and tested to measure the size of the mesiodistal tooth. In this way, digital dental technology has made digital study models become popular in orthodontics. Objective: to evaluate the degree of reliability of the evaluation of the Bolton analysis in three-dimensional virtual models versus plaster models through a review of the literature. Materials and methods: A search was carried out in the primary databases of the international scientific literature on health sciences: Medline, through PubMed, SciELO, Lilacs, and Embase. Review articles published between the year 2000 and October 2021 were included. Results: The desktop scanner was the best option for digitizing dental models, but this doe...

Energy measurement in dynamic penetration tests is key to correctly interpreting test results and ensuring comparable geotechnical data. Although commercial devices are widely used, their high cost limits adoption in developing regions such as Peru, affecting the accuracy of soil evaluation in many geotechnical studies. In this context, this research presents an energy measurement system called Kallpa, which uses low-cost electronic components to digitize sensor signals during Standard Penetration Tests (SPTs). Kallpa employs high-resolution analog-to-digital converters (ADCs) with an advanced sampling frequency, processing and storing data via a Raspberry Pi 4 microcomputer. The sensors, including accelerometers and strain gauges, were calibrated and compared with the Pile Driving Analyzer (PDA) to validate their accuracy in the Kallpa system. This study involved sixteen Standard Penetr...