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1
artículo
El presente aporte se circunscribe a uno de los más serios problemas de la criminalística peruana, el abandono de la poroscopia, disciplina abocada al estudio de los poros presentes en la piel. Para ello, se efectuó el estudio de la literatura nacional e internacional que versa sobre la dimensión teórica de esta rama del saber y la evidencia empírica referida a su aplicación. Se concluyó que, el uso de la poroscopia optimizaría la identificación personal, al reducir varios de los equívocos provocados por el empleo aislado de los dos primeros niveles de análisis dactilar, e incrementaría la fiabilidad de las homologaciones, motivos por los que la misma debe ser implementada a nivel nacional.
2
artículo
Twenty seven homing pigeons (10 males and 17 females) were biometrically studied and the bilateral symmetry (right-left) level was evaluated. Analysed traits were the length of outer external rectrices, length of the wing and length of the second primary feather. The aim of the study was to check whether there is a relationship between the degree of asymmetry level and general health of the birds (expressed as a measure of body condition). Measurements showed a normal distribution and without differences according to the body condition, indicating a high degree of stable growth.
3
artículo
Publicado 2024
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VINASSE IS ACIDIC, DARK BROWN WASTEWATER OBTAINED AS A RESIDUE FROM THE ALCOHOL DISTILLATION PROCESS, THE MAIN COMPONENT OF WHICH IS WATER, IN ADDITION TO MINERAL NUTRIENTS AND A HIGH ORGANIC LOAD. ELECTROCOAGULATION (EC) IS A TECHNOLOGY THAT GENERATES COAGULATING SUBSTANCES IN SITU BY OXIDIZING SACRIFICIAL ANODES THROUGH AN ELECTRIC CURRENT APPLIED TO THE ELECTRODES. DURING THE LAST DECADE, THE ELECTROCOAGULATION PROCESS HAS BEEN INTENSIVELY INVESTIGATED IN SEVERAL REVIEWS, DUE TO ITS EASE OF OPERATION, VERSATILITY, SUSTAINABILITY AND LOW ENVIRONMENTAL IMPACT. THE OBJECTIVE OF THE PRESENT WORK HAS BEEN TO MAKE A GENERAL REVIEW OF THE EC PROCESS, ITS PRINCIPLE, REACTION MECHANISM AND OPERATING PARAMETERS INVOLVED IN THE ELECTROCOAGULATION PROCESS. IN THIS RESEARCH, THE PRISMA METHOD WAS USED FOR THE ANALYSIS OF ARTICLES FROM DIFFERENT DATABASES SUCH AS SCOPUS, SCIENCEDIRECT AND GOOGLE SC...
4
artículo
Publicado 2019
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The purpose of this research was to determine the degree of relationship between Knowledge Management and Job Satisfaction in teachers of the educational institutions of the Initial level of the city of Puno. The research corresponds to the basic type, is descriptive and with a correlational design, the study sample constituted 64 teachers from the educational institutions of the Initial Education level, the information was collected with the survey technique and as an instrument the questionnaire. It is concluded that, the degree of relationship between Knowledge Management and Job Satisfaction in teachers of the educational institutions of the Initial level of the city of Puno in 2016 is positive, according to the Zc test that was 3.42 accepting the alternative hypothesis (Hi), the frequency of Knowledge Management is almost always, according to 44% of teachers; while, the frequency of...
5
artículo
Objective. Understand the perspective of patients in relation to the current way of obtaining an appointment in primary health care. Methods. A bibliography search was performed in the online databases in Spanish and English. The main source was sought by reviewing the bibliographical references of the publications. Results. It was found that the shift to virtuality has made it easier for users to access a primary health care appointment, reducing waiting time and paving the way for non-face-to-face care; the level of user satisfaction has increased positively. Conclusions. Phone and virtual requests are here to stay; these are not intended to replace face-to-face requests, but they are a necessary tool to improve the quality of care for users.
6
artículo
This paper is based on the premise that parole assumes the configuration of rights and the objective was to reach an approximation to the implications of such a postulate in the Peruvian legal system. For that purpose, an analysis of the national and international literature that deals with the dogmatic and applicational dimensions of these figures was carried out. It was concluded that it is not possible to restrict the legal application of early release, regardless of the seriousness of the crime or sentence imposed, and that the concession factors to be legislated must be based on empirical evidence related to recidivism.
7
artículo
Publicado 2025
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The present research aimed to examine whether perfectionism and some demographic variables can predict levels of resilience (and their dimensions) in adults from Venezuela. The design was cross-sectional predictive, through logistic regression analysis. Participants were 313 Venezuelan mature adults (M = 46.44 years), mostly women (82.7%), residents of the interior of the country (70.9%), with higher education (64.2%), and paid employment (67.9%). An adapted version of the Multidimensional Perfectionism Scale (Frost et al., 1990) and the Resilience Scale for Adults (Hernández y Lezama, 2016) was applied via Google Forms. Organization was a positive predictor of resilience and two of its dimensions (OR = 1.13 - 1.27), while fear of mistakes was a negative predictor of resilience and “morality and values” (OR = 0.96). Personal standards positively predicted“perseverance and hope” ...
8
artículo
Publicado 2025
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The present research aimed to examine whether perfectionism and some demographic variables can predict levels of resilience (and their dimensions) in adults from Venezuela. The design was cross-sectional predictive, through logistic regression analysis. Participants were 313 Venezuelan mature adults (M = 46.44 years), mostly women (82.7%), residents of the interior of the country (70.9%), with higher education (64.2%), and paid employment (67.9%). An adapted version of the Multidimensional Perfectionism Scale (Frost et al., 1990) and the Resilience Scale for Adults (Hernández y Lezama, 2016) was applied via Google Forms. Organization was a positive predictor of resilience and two of its dimensions (OR = 1.13 - 1.27), while fear of mistakes was a negative predictor of resilience and “morality and values” (OR = 0.96). Personal standards positively predicted“perseverance and hope” ...
9
artículo
Publicado 2022
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Cancer is the second leading cause of death in Latin America, and the economic cost it requires will increase markedly in future years (1). If nothing is done about it, cancer incidence and mortality in South and Central America will continue to rise sharply between 2012 and 2035 (2). It is expected that by 2030 the incidence of cancer will increase by 32%, reaching 5 million cases per year (1). At the level of Latin America, health policies have been implemented, where they prioritize the feeding of these patients to reduce the sequelae that the treatments can cause, obtaining optimal results (3). It is in this context that the effects of cancer and its treatment make it difficult to meet the nutritional requirements of patients. Chemotherapy is the most widely used medical treatment for cancer in the world. Knowing that cancer cells tend to grow and divide faster than normal cells, thi...
10
artículo
Publicado 2022
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Objective. To determine the effectiveness of nutritional intervention in beneficiaries of soup kitchens in Lima, 2022. Methods. The study was of an applicative type, specifcally pre-experimental design (without control group) and longitudinal cut. The population consisted of all the benefciaries of the soup kitchens of San Luis. The sample consisted of 110 benefciaries of soup kitchens. Results. The nutritional diagnosis changed positively. Regarding the anthropometric evaluation, the median BMI decreased from 27.95 to 26.04; the MAMC decreased from 30.05 to 28.20 and the PAB decreased from 90.00 to 88.00. In relation to biochemical values, median cholesterol level decreased from 190.20 to 184.10; glucose level decreased from 99.30 to 92.40 and hemoglobin level decreased from 13.30 to 13.20. In relation to bioelectrical impedance, the percentage of fat decreased from 34.00 to 31.00 and...
11
12
tesis de grado
Publicado 2025
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El presente estudio analiza la variación de los parámetros de resistencia de suelos lacustres en Cerro de Pasco ante el incremento de sobrecarga inducido por la construcción progresiva de diques. Para su evaluación se emplearon resultados de ensayos de penetración estándar (SPT) realizados en diferentes años (2010, 2019 y 2025), correspondientes a etapas sin carga y posteriores a la aplicación de cargas de 540 kPa y 620 kPa. Los valores del número de golpes fueron corregidos mediante la metodología (N₁)₆₀ según la norma ASTM D1586, y se determinaron los parámetros geotécnicos derivados: cohesión no drenada (Cu), ángulo de fricción interna (φ), coeficiente de presiones laterales en reposo (K₀), módulo de deformación (Es) y presión admisible (qadm). Los resultados evidencian una reducción progresiva de Cu, Es y qadm a lo largo del tiempo, indicando que la sobre...
13
tesis de grado
Publicado 2023
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En el presente estudio titulado “Implantación de un sistema de información basado en la web de registro y gestión de accidentes e incidentes para la mejora de indicadores de seguridad en el trabajo en una compañía minera en la ciudad de Cusco - 2022”, tiene por finalidad realizar el sistema web de registro para accidentes e incidentes que permite mejorar los indicadores de ST en una empresa del rubro minero. Para este estudio se llegó a emplear como metodología el enfoque cuantitativo, tipo aplicado, diseño no experimental. La población abarca a los 3000 trabajadores y la muestra de 300 trabajadores. El instrumento fue el cuestionario, realizada mediante la entrevista. Se concluye del objetivo general que la variable independiente Sistema web de registro y gestión de accidentes e incidentes; de los encuestados, el 30,3% manifiesta A veces, un 43,3% manifiesta Casi siempre y...
14
artículo
Publicado 2024
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Most Andean lakes and lagoons are used as reservoirs to manage hydropower generation and cropland irrigation, which, in turn, alters river flow patterns through processes of storage and discharge. The Carhuacocha and Vichecocha lagoons, fed by glaciers, are important aquatic ecosystems regulated by dams. These dams increase the flow of the Mantaro River during the dry season, supporting both energy production and irrigation for croplands. Water quality in the Carhuacocha and Vichecocha lagoons was assessed between storage and discharge events by using the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI) and multivariate statistical methods. The quality of both lagoons is excellent during the storage period; however, it decreases when they are discharged during the dry season. The most sensitive parameters are pH, dissolved oxygen (DO), and biochemical oxyge...
15
artículo
Publicado 2024
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Most Andean lakes and lagoons are used as reservoirs to manage hydropower generation and cropland irrigation, which, in turn, alters river flow patterns through processes of storage and discharge. The Carhuacocha and Vichecocha lagoons, fed by glaciers, are important aquatic ecosystems regulated by dams. These dams increase the flow of the Mantaro River during the dry season, supporting both energy production and irrigation for croplands. Water quality in the Carhuacocha and Vichecocha lagoons was assessed between storage and discharge events by using the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI) and multivariate statistical methods. The quality of both lagoons is excellent during the storage period; however, it decreases when they are discharged during the dry season. The most sensitive parameters are pH, dissolved oxygen (DO), and biochemical oxyge...
16
artículo
Publicado 2023
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The objective was to describe the characteristics and nutritional profile of processed foods and beverages advertised during child protection hours (6 am to 10 pm, according to Peruvian regulations) on the two channels with the largest audience on Peruvian television. In this cross-sectional study, 448 hours of television content on 14 random days from 6:00 am to 10:00 pm between January and February 2021 were recorded and 2061 advertisements for processed foods and beverages were identified. The time frame with the most publicity for these foods was between 2:00 pm. and 6:00 pm. (33,9%). The most advertised categories were beverages (41,7%) and confectionery (17,8%). 46,9% of foods exceeded at least one of the technical parameters evaluated in the first stage of the Peruvian law (total sugar, saturated fat, or sodium) and 88,4% would do so in the second stage. The majority of advertised...
17
tesis de maestría
Publicado 2024
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Una foliación algebraica unidimensional Fα es aquella que es generada por un campo vectorial meromorfo α ∈ H0(Pn,ΘPn(1 − d)), donde d > 1 sobre el espacio proyectivo complejo Pn. En este trabajo estudiaremos cómo determinar las foliaciones holomorfas unidimensionales mediante sus singularidades usando la cohomología de haces asociadas a las foliaciones holomorfas. El trabajo está basado en la investigación desarrollada por Xavier Gómez-Mont y George Kempf en [GMK89].
18
tesis doctoral
Publicado 2022
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Steel structures have an ubiquitous presence in several industries due to their availability and low price. Bus super-structures are typically built using structural steel hollow shapes and serve a major role during crashes and rollovers, as they protect the passengers by absorbing the kinetic energy of impacts and dissipating it as plastic deformations. In recent years, composite materials have gained protagonism in numerous applications due to their high specific strength and stiffness. However, costs and manufacturing complexity have made all-composite automotive structures economically unfeasible. Thus, the current tendency is the use of multimaterial structures: using composites only in the zones where they are needed, while keeping an inexpensive material, like steel, elsewhere. Hollow structural shapes, used in bus structures, are susceptible to bending collapse failure during rol...
19
tesis de grado
En el presente informe se presentan tres casos de aplicación del análisis de falla metalúrgico para determinar la causa raíz de falla de componentes siniestrados pertenecientes a tres sectores de la industria peruana. Este informe se presenta como medio de verificación de la experiencia profesional del autor, quien se desempeña como Analista de Fallas Senior en el Laboratorio de Materiales PUCP; habiendo desarrollado en los últimos diez años más de 70 proyectos de análisis de falla y caracterización de materiales con diversas industrias: minería, hidrocarburos, alimentos, pesquería, farmacéutica, manufactura, entre otras. El informe inicia con la presentación de conceptos y definiciones asociadas al análisis de falla metalúrgico. Luego de ello, se presenta la metodología de análisis empleada en el Laboratorio de Materiales PUCP, la misma que ha sido utilizada para el d...
20
tesis de maestría
El crecimiento de arándanos durante la última década en el Perú ha sido exponencial, siendo el 2022 el año donde el país se consagró como el primer exportador de la baya, esto trae consigo un rotundo aumento en el cultivo en todo el país, abriendo caminos a nuevos agricultores y potenciando el crecimiento de los ya establecidos. Sin embargo, uno de los principales desafíos enfrentados por este sector es el envasado. Más del 80% del proceso se realiza manualmente, ya que las máquinas disponibles están diseñadas para altos volúmenes de producción y tienen costos inalcanzables para muchos productores. El principal objetivo de este trabajo es diseñar una máquina dispensadora de clamshell y dosificadora de arándanos, que sea económicamente accesible y adecuada para operaciones de menor escala. Para alcanzar el objetivo principal del presente trabajo, se definieron los reque...
