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1
tesis de grado
Publicado 2024
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La investigación centra el problema en la falta de energía eléctrica del Centro Poblado La Cantera de Vinzos, se justifica la necesidad de los pobladores por este servicio para ello aprovechar el recurso hídrico del canal Irchim. El objetivo fue diseñar una turbina tipo Michell – Banki para generar energía eléctrica a La cantera de Vinzos – Santa, 2023. La metodología de la investigación es aplicada, diseño no experimental, transversal, descriptivo, la población de 60 habitantes (15 viviendas) proyectado a 20 años. Los resultados se cubrió los requerimientos de energía eléctrica doméstico, alumbrado público y pérdidas de 14.11 MWh, para ello se requiere un caudal de 0.088 m3/s y una altura útil 11.50 m, que será mediante una turbina Michell-Banki, diámetro del rotor 0.2 m, generador de 675.6 rpm, diámetro interior del rodete 0.132 m, radio de curvatura de álabe...
2
tesis doctoral
Publicado 2025
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El estudio analiza el impacto del incumplimiento del donatario en la ejecución del cargo o modo establecido en una donación modal y evalúa si este incumplimiento concede al donante el derecho a dejar sin efecto la donación. Se emplea una investigación jurídica doctrinal, descriptiva y explicativa, con un enfoque dogmático-jurídico y filosófico del derecho. El diseño es no experimental y documental, basado en la revisión de la legislación peruana, jurisprudencia relevante y escritos doctrinales, junto con una comparación con el derecho extranjero. Los resultados revelan que el incumplimiento del donatario en cumplir con el cargo o modo establecido tiene un impacto significativo en el derecho del donante a revocar la donación. Tanto el incumplimiento deliberado como el no intencional pueden activar mecanismos legales como la resolución contractual para revertir los efectos d...
3
tesis de maestría
Publicado 2021
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El presente trabajo de investigación tiene como finalidad determinar las razones por las cuales es necesaria la regulación de la inexigibilidad del plazo de impugnación del reconocimiento de la filiación extramatrimonial prescrito en el artículo 400 del Código Civil. La problemática generada por el plazo contenido en la citada norma limita el reconocimiento de la relación paterno-filial acorde con el derecho a la identidad del menor de edad. Con el estudio de la doctrina sobre la materia, así como de la normativa nacional y supranacional, y de la jurisprudencia emitida por la Sala de Derecho Constitucional y Social Permanente de la Corte Suprema de Justicia de la República comprendida entre el periodo del 2015 al 2019, y de las resoluciones expedidas por los órganos de primera instancia, se identifica las razones jurídicas y sociales que sustentan la necesidad de derogar el p...
4
artículo
Publicado 2021
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ABSTRACT The present study aimed to evaluate the cross-cultural measurement invariance of the Pandemic Grief Scale (PGS) in ten Latin American countries. A total of 2,321 people who had lost a family member or other loved one due to COVID-19 participated, with a mean age of 34.22years old (SD¼11.99). In addition to the PGS, a single item of suicidal ideation was applied. The unidimensional model of the PGS had adequate fit in most countries and good reliability estimates. There was evidence of measurement invariance by country and gender. Also, a one-point increase in the PGS was associated with an almost twofold increase in the odds of suicidal ideation. Scores greater than or equal to 4 on the PGS are proposed as a cut off to identify individuals with suicidal ideation. Strong evidence of the cross-cultural validity of the PGS is provided.
5
artículo
Publicado 2023
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“Background: There is an urgent need to assess changes in well-being on a multinational scale during the COVID-19 pandemic, thus culturally valid scales must be available. Methods: With this in mind, this study examined the invariance of the WHO well-being index (WHO-5) among a sample of 5183 people from 12 Latin Americans countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). Results: The results of the present study indicate that the WHO-5 is strictly invariant across samples from different Latin American countries. Furthermore, the results of the IRT analysis indicate that all items of the WHO-5 were highly discriminative and that the difficulty required to respond to each of the five items is ascending. Additionally, the results indicated the presence of moderate and small size differences in subjective well-bein...
6
artículo
Publicado 2023
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“Background There is an urgent need to assess changes in well-being on a multinational scale during the COVID-19 pandemic, thus culturally valid scales must be available. Methods With this in mind, this study examined the invariance of the WHO well-being index (WHO-5) among a sam‑ ple of 5183 people from 12 Latin Americans countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). Results The results of the present study indicate that the WHO-5 is strictly invariant across samples from diferent Latin American countries. Furthermore, the results of the IRT analysis indicate that all items of the WHO-5 were highly discriminative and that the difculty required to respond to each of the fve items is ascending. Additionally, the results indicated the presence of moderate and small size diferences in subjective well-being am...
7
artículo
Publicado 2023
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“Background There is an urgent need to assess changes in well-being on a multinational scale during the COVID-19 pandemic, thus culturally valid scales must be available. Methods With this in mind, this study examined the invariance of the WHO well-being index (WHO-5) among a sam‑ ple of 5183 people from 12 Latin Americans countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). Results The results of the present study indicate that the WHO-5 is strictly invariant across samples from diferent Latin American countries. Furthermore, the results of the IRT analysis indicate that all items of the WHO-5 were highly discriminative and that the difculty required to respond to each of the fve items is ascending. Additionally, the results indicated the presence of moderate and small size diferences in subjective well-being am...
8
tesis de grado
Modalidad de obtención de grado y/o título sin designación de asesor
9
artículo
Publicado 2022
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The Coronavirus Anxiety Scale (CAS) was recently developed to assess dysfunctional anxiety related to COVID-19. Although different studies reported that the CAS is psychometrically sound, it is unclear whether it is invariant across countries. Therefore, the present study aimed to examine the measurement invariance of the CAS in twelve Latin American countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). A total of 5196 people participated, with a mean age of 34.06 (SD = 26.54). Multigroup confirmatory factor analysis (CFA) was used to examine the measurement invariance of the CAS across countries and gender. Additionally, the graded response model (GRM) was used to provide a global representation of the representativeness of the scale with respect to the COVID19 dysfunctional anxiety construct. The unidimensional stru...
10
artículo
Publicado 2023
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The present study aimed to evaluate the cross-cultural measurement invariance of the Pandemic Grief Scale (PGS) in ten Latin American countries. A total of 2,321 people who had lost a family member or other loved one due to COVID-19 participated, with a mean age of 34.22 years old (SD = 11.99). In addition to the PGS, a single item of suicidal ideation was applied. The unidimensional model of the PGS had adequate fit in most countries and good reliability estimates. There was evidence of measurement invariance by country and gender. Also, a one-point increase in the PGS was associated with an almost twofold increase in the odds of suicidal ideation. Scores greater than or equal to 4 on the PGS are proposed as a cut off to identify individuals with suicidal ideation. Strong evidence of the cross-cultural validity of the PGS is provided.
11
artículo
Publicado 2022
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The presence of a significant number of people who do not intend to be vaccinated could negatively impact efforts to control the COVID-19 pandemic. Therefore, this study sought to determine the prevalence of intention to be vaccinated against COVID-19 and associated sociodemographic and psychosocial factors in thirteen countries in Latin America and the Caribbean (LAC). A total of 5510 people from 13 LAC countries participated. Frequencies, percentages, bivariate analyses using chi-square tests, and Poisson regression analysis with robust variance were used. The countries with the highest prevalence of intention to be vaccinated were Brazil (96.94%), Cuba (89.59%), Chile (84.59%), and Mexico (78.33%). On the other hand, the countries with the lowest prevalence were El Salvador (54.01%), Paraguay (55.87%), and Uruguay (56.40%). Prevalence is also reported according to some sociodemographi...
12
tesis de grado
Publicado 2022
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Modalidad de obtención de grado y/o título sin designación de asesor
13
artículo
Publicado 2023
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Background: There is an urgent need to assess changes in well-being on a multinational scale during the COVID-19 pandemic, thus culturally valid scales must be available. Methods: With this in mind, this study examined the invariance of the WHO well-being index (WHO-5) among a sample of 5183 people from 12 Latin Americans countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). Results: The results of the present study indicate that the WHO-5 is strictly invariant across samples from different Latin American countries. Furthermore, the results of the IRT analysis indicate that all items of the WHO-5 were highly discriminative and that the difficulty required to respond to each of the five items is ascending. Additionally, the results indicated the presence of moderate and small size differences in subjective well-being a...
14
artículo
Publicado 2022
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The Coronavirus Anxiety Scale (CAS) was recently developed to assess dysfunctional anxiety related to COVID-19. Although different studies reported that the CAS is psychometrically sound, it is unclear whether it is invariant across countries. Therefore, the present study aimed to examine the measurement invariance of the CAS in twelve Latin American countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). A total of 5196 people participated, with a mean age of 34.06 (SD = 26.54). Multigroup confirmatory factor analysis (CFA) was used to examine the measurement invariance of the CAS across countries and gender. Additionally, the graded response model (GRM) was used to provide a global representation of the representativeness of the scale with respect to the COVID-19 dysfunctional anxiety construct. The unidimensional str...
15
artículo
Publicado 2021
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The invariance of the Preventive COVID-19 Infection Behaviors Scale (PCIBS) was evaluated in 12 Latin American countries (Argentina, Bolivia, Chile, Colombia, Cuba, Ecuador, El Salvador, Guatemala, Mexico, Paraguay, Peru, and Uruguay). A total of 5183 people from the aforementioned countries participated, selected using the snowball sampling method. Measurement invariance was assessed by multigroup confirmatory factor analysis (MG-CFA) and Multi-Group Factor Analysis Alignment (CFA-MIAL). In addition, item characteristics were assessed based on Item Response Theory. The results indicate that the original five-item version of the PCIBS is not adequate; whereas a four-item version of the PCIBS (PCIBS-4) showed a good fit in all countries. Thus, using the MG-CFA method, the PCIBS-4 achieved metric invariance, while the CFA-MIAL method indicated that the PCIBS-4 shows metric and scalar invar...
16
artículo
Publicado 2022
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This study assesses the relationship between COVID-19 anxiety and subjective well-being in terms of the mediating role of COVID-19 preventive behaviors. Additionally, the contribution of sociodemographic factors (sex and age) and risk perception on COVID-19 anxiety and its potential measurement invariance was tested in 5655 participants from 12 countries in Latin America and the Caribbean. A mixture of both latent and observable variables were analyzed using a system of structural equations. The Coronavirus Anxiety Scale (CAS), Preventive COVID-19 Infection Behaviors Scale (PCIBS) and single-item measures were used to assess the perceived probability of death, perceived severity and concern about transmitting COVID-19. The results indicated that there is a significant and relevant direct effect of COVID-19 anxiety on participants' well-being. Furthermore, COVID-19 anxiety significantly p...
