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1
artículo
The aim of the present study was the adaptation and evaluation of the psychometric properties of the life skills test in young Mexicans. Sample, 275 young students of upper secondary education and undergraduate degree, 43.6% of the Centro Universitario del Sur, 37.8% Centro Universitario de los Valles, and 18.5% of upper secondary education of the University of Guadalajara of the state of Jalisco, México. The 30.5 males and 69.5% women, the range between 16 and 29 years, ME 20 and 2.39. As for the occupation, 90.9% referred to be a student, 8.7% studied and worked and. 4% studied and home. Instrument: Life skills Test. Results. They demonstrate that the life skills test has adequate psychometric properties in this population, so it is an appropriate instrument to measure life skills in young Mexicans.
2
artículo
The aim of the present study was the adaptation and evaluation of the psychometric properties of the life skills test in young Mexicans. Sample, 275 young students of upper secondary education and undergraduate degree, 43.6% of the Centro Universitario del Sur, 37.8% Centro Universitario de los Valles, and 18.5% of upper secondary education of the University of Guadalajara of the state of Jalisco, México. The 30.5 males and 69.5% women, the range between 16 and 29 years, ME 20 and 2.39. As for the occupation, 90.9% referred to be a student, 8.7% studied and worked and. 4% studied and home. Instrument: Life skills Test. Results. They demonstrate that the life skills test has adequate psychometric properties in this population, so it is an appropriate instrument to measure life skills in young Mexicans.
3
artículo
Publicado 2010
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The origin of the mining property, along the history, has been explain through the basis of two theories. The theory of the accession and the theory of the separation. The first part reffers to the unit of the soil and the subsoil; the second one distinguishes and separates the property of the soil from the subsoil. The theory of the accession considers that the surface (soil) and the deposit (subsoil) are a unit as the mineral deposits are incorporated into the superficial property. The mines belong to the holder of the surface for being an accesory to this one, this argument takes root in the natural Law. Therefore, the mines cant be exploited independently of the soil, faculty reserved only to the owner of the surface who can exploit them freely. The theory of the separation is opposed to the accession for considering to the mining property a different foreign good separated from the ...
4
artículo
Publicado 2015
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It describes the chemical characteristics and the effects of Ayahuasca consumption, in order to know the current status of the discoveries to date regarding their pharmacological properties. A literature review was performed on studies of ayahuasca until 2013 in English, Spanish, and Portuguese in the databases of PubMed, PsycINFO, Psyke, Psicodoc, and Redalyc; as well as chapters in books and literature obtained from related research. It is concluded that one of the components of ayahuasca – harmina – can be used to treat different pathologies.
5
tesis de grado
Hoy en día, la industria de la construcción ha expresado su preferencia por el uso de materiales sostenibles debido al importante impacto que tienen en el medio ambiente. Aunque el concreto se utiliza ampliamente en la construcción debido a sus diversas propiedades, un componente suyo, el cemento, contribuye en gran medida a la contaminación por CO2. Por ello, se está investigando la viabilidad de sustituir parcialmente este material. Las diatomeas calcinadas se presentan como una opción prometedora. Se trata de un material extremadamente fino y muy poroso, compuesto principalmente de sílice, que tiene una gran superficie específica. Esta investigación evaluó las propiedades del concreto convencional en estado fresco y endurecido mediante la adición de diatomea calcinada como reemplazo parcial del cemento en proporciones del 5%, 10% y 15%, con el fin de determinar el porcentaj...
6
artículo
Publicado 2025
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The purpose of this study was to translate the Bedtime Procrastination Scale (BPS) into Spanish and to evaluate its psychometric properties. A sample of 419 students from three Peruvian universities participated in the study. Confirmatory factor analysis was conducted to evaluate the original model of the scale, which initially showed poor fit indices. Improved fit indices were obtained after removing reverse-scored item, χ²(5) = 9.240, CFI = .998, RMSEA = .045, TLI = .997, and SRMR = .013. The internal consistency of the scale, examined using the omega coefficient, was found to be satisfactory (ω = .86). Moreover, measurement invariance analysis supported gender invariance, indicating that the scale functions equivalently across male and female participants. Additionally, convergent validity was assessed by examining the correlations between the BPS and insomnia, as measured by the A...
7
artículo
Publicado 2023
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The development of transportation infrastructure plays a fundamental role in promoting tourism activities by enhancing the accessibility to various destinations. The quality of paved roads particularly influences the flow of trade and tourism. The research focused on evaluating the influence of the addition of metallurgical slag (MS) to the mechanical properties of flexible pavements. A sample of 60 briquettes underwent testing using the Marshall method with different levels of MS addition: 5 %, 8 %, 12 %, and 15 %. The results revealed that a combination of 4.5 % asphalt content (AC) and 12 % MS proved to be suitable in terms of stability, reaching a value of 1540.3 kg, as well as an average flow of 2.73 cm. Consequently, it is concluded that the inclusion of MS enhances the mechanical properties of the asphalt layer, suggesting that this material could be used in the design of mixtures...
8
artículo
The Supreme Court of the Republic of Peru, has established as a criterion in its agreements and appeals, that in claim demands, when the parties claim property rights, they should no longer be declared inadmissible under the argument that they must previously determine who has the best property right, but right there, must be resolved as a controversial point. Now, when the best property right is determined as a controversial point to resolve the claim, it has been substantiated as if it were a purport, the parties exercising the guarantees that due process contains, including the audi alteram partem and the right to the test, to assert its property right and / or to question the other, but as it was not requested, a ruling on the merits can not be issued, this in merit to the principle by which only the parties can incorporate the or the petitions, having to do so in a clear and concret...
9
artículo
Publicado 2011
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The objective of this study was to analyze the psychometric properties of the Scale of Alteration of the Behavior in the School (SABS) in a sample of Peruvian children of 1º to 6º degree of elemental education, and to obtain evidences that support their use like instrument of screening for behavioural alterations (BA). One obtained an acceptable Reliability through method of internal consistency (alpha de Cronbach = 0.937), as well as evidence of internal structure of the test, factorial validity (two factors that explain 61.986% of variance) and of criterial validity. To these they say us results that the Scale of Alteration of the Behavior in the School (SABS) is an instrument valid and reliable to be used like method of valuation of behavioural alterations in students of 1.º to 6.º of primary education.
10
artículo
Publicado 2011
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The objective of this study was to analyze the psychometric properties of the Scale of Alteration of the Behavior in the School (SABS) in a sample of Peruvian children of 1º to 6º degree of elemental education, and to obtain evidences that support their use like instrument of screening for behavioural alterations (BA). One obtained an acceptable Reliability through method of internal consistency (alpha de Cronbach = 0.937), as well as evidence of internal structure of the test, factorial validity (two factors that explain 61.986% of variance) and of criterial validity. To these they say us results that the Scale of Alteration of the Behavior in the School (SABS) is an instrument valid and reliable to be used like method of valuation of behavioural alterations in students of 1.º to 6.º of primary education.
11
artículo
Publicado 2021
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The effects of concentration and temperature on the thermo-physical properties of apple juice were studied, in which density and viscosity were measured at different temperature and concentration conditions, varying from 20°C to 80°C and from 12 to 70° Brix, respectively. Density was determined by the pycnometer method and viscosity by Hooke's falling sphere method, based on Stokes' law. The density results were correlated several times, arriving, by the least squares method, at a multiple linear regression model, of three terms; while the viscosity results proved to be more difficult to correlate, which, by the least squares method, arrived at a multiple linear regression model, of six terms. The experimental mathematical models can be used to obtain the density and viscosity data within the temperature and concentration conditions indicated in the study. Key words: density –...
12
artículo
Publicado 2021
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The effects of concentration and temperature on the thermo-physical properties of apple juice were studied, in which density and viscosity were measured at different temperature and concentration conditions, varying from 20°C to 80°C and from 12 to 70° Brix, respectively. Density was determined by the pycnometer method and viscosity by Hooke's falling sphere method, based on Stokes' law. The density results were correlated several times, arriving, by the least squares method, at a multiple linear regression model, of three terms; while the viscosity results proved to be more difficult to correlate, which, by the least squares method, arrived at a multiple linear regression model, of six terms. The experimental mathematical models can be used to obtain the density and viscosity data within the temperature and concentration conditions indicated in the study. Key words: density –...
13
artículo
Publicado 2020
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The present investigation was oriented to establish the psychometric properties of the Inventory of ambivalent sexism (ASI) in young people from technical educational institutions of the Huaral district, the type of study that was used was instrumental, we worked with a census sample, which included 1000 students, from ages between 18 to 30 years. The inventory items analysis was performed, yielding values greater than 0.3, the exploratory factor analysis (EFA) was performed, where the union of 5 factors was demonstrated, which show 51.1% of the total variance. the confirmatory factor analysis (CFA) of the second order, where good adjustment indices are evident, in addition, an adequate inventory reliability was obtained, Cronbach's alpha coefficient of 0.868 and Omega coefficient of 0.869. In conclusion, it was established that the ASI has adequate psychometric properties, and it turns ...
14
artículo
Background: Insomnia can harm daily functioning and is strongly associated with depression and anxiety symptoms, especially in women. El Salvador has no scales with adequate psychometric properties for their measurement. In this context, the Athens Insomnia Scale (AIS) is a viable option to measure this symptomatology, given its short length of time, solid theoretical foundation, and relevance in other countries. Objective: To analyze the psychometric properties of AIS in the Salvadoran population, in its complete (AIS-8) and abbreviated (AIS-5) versions. Method: The study consisted of 1479 Salvadoran adults from the 14 departments of the country (mean age = 33.3 years, SD = 11.7) who were screened through a non-probability sampling design. Evidence of reliability, validity based on internal structure, and convergent validity were examined. Results: Both scales showed adequate internal c...
15
artículo
Publicado 2016
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In this paper we present the study to obtain biopolymers from potato starch, for use as a food packaging, starch with acetic acid was changed to 5% yielding a polymer with a 61.76% amylose and 38.28% amylopectin. The elongation and tensile tests showed that the modified starch presented better mechanical property. Also, additives were added to the films by modified starch for to make the film improved mechanical properties and texture for this to Xathan Chitosan and were used in different ratios, determining an improved mechanical property of the biopolymer were prepared. This was corroborated by elongation and tensile tests, yielding values of 33% and 8.47 N respectively and the Infrared spectroscopy -vis made Uv showing characteristic peaks biopolymers cellulose and good transmittance of 87%. All samples were obtained following the Taguchi method.
16
artículo
To evaluate the psychometric properties of the scale of Subjective Well-being for Children(EBSNAM). Methodology: Quantitative and psychometric in scope, since it proposes the creationand validation of an instrument, being subjected to tests and statistical analyzes that will determine itsvalidity and reliability. Likewise, the research is characterized by being of a non-experimental design,since the variable was not manipulated and cross-sectional, because the information was collectedby applying the instrument in a determined time. Results: In the pilot study, favorable results wereobtained because 3 dimensions and 11 items were proposed for the creation of the Subjective Wellbeingfor Children scale (EBSNAM), taking into account the influential factors in the reliability andvalidity of the instrument. In the confirmatory study with a population of 1016 children, successfulresults were o...
17
artículo
The liberal State emphasized that the right to property grants the attributes of using, enjoying, and disposing of an asset. However, beginning in 1911, Léon Duguit introduced the concept of the social function of property, asserting that the owner must not only seek personal satisfaction but also contribute to the well-being of the collective. Since its introduction, the social function of property has been incorporated into the constitutions of various states. However, the Peruvian constituent assembly of 1993 deliberately departed from this approach, and thus, Article 70 of our Constitution merely states that property shall be exercised in harmony with the common good—a provision that remains unchanged to this day. Consequently, the first objective of this research is to analyze the validity of the social function of property as a universal legal category within constitutional law....
18
artículo
The liberal State emphasized that the right to property grants the attributes of using, enjoying, and disposing of an asset. However, beginning in 1911, Léon Duguit introduced the concept of the social function of property, asserting that the owner must not only seek personal satisfaction but also contribute to the well-being of the collective. Since its introduction, the social function of property has been incorporated into the constitutions of various states. However, the Peruvian constituent assembly of 1993 deliberately departed from this approach, and thus, Article 70 of our Constitution merely states that property shall be exercised in harmony with the common good—a provision that remains unchanged to this day. Consequently, the first objective of this research is to analyze the validity of the social function of property as a universal legal category within constitutional law....
19
tesis de maestría
Publicado 2019
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Evalúa el efecto protector de las barreras térmicas a altas temperaturas sobre la superaleación de níquel de ZhS6F. El propósito del trabajo: estudiar los cambios en la microestructura del recubrimiento de barrera de pulverización térmica de plasma y el recubrimiento de barrera de deposición física de vapor de arco eléctrico, para lo cual se evaluó el estado inicial y después de la operación a largo plazo. En el proceso de trabajo, se utilizó la teoría de los recubrimientos a altas temperaturas, el material base de la superaleación de níquel, los métodos de deposición y los métodos de análisis para la evaluación del recubrimiento. En el resultado del trabajo, la evaluación de cada tipo de sistema de recubrimientos en su estado inicial y final se presenta después de ser sometido a la operación. La efectividad en el trabajo concluye que el sistema de recubrimiento ...
20
tesis de grado
Publicado 2023
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El objetivo de la presente investigación fue evaluar el comportamiento mecánico del concreto adicionado con virutas de acero oxidadas y concreto simple. Las virutas de acero oxidadas se cortaron en medidas longitudinales de 1”, 1.5” y 2” para ser adicionadas al concreto en 2%, 3% y 4% respecto al peso del cemento. Para tal fin, se indujo a las virutas de acero a un proceso de sumersión en agua potable durante 3h, posteriormente se colocaron a temperatura de ambiente para su secado natural durante 48h, lo cual finalmente se obtuvo un grado de oxidación de 1% y 2%, además, se generó un aspecto rugoso en su superficie que favoreció la adherencia entre esta y los componentes del concreto. Los resultados indican que las virutas de acero oxidadas de 1” al 2% lograron un mejor comportamiento en las propiedades mecánicas del concreto, en resistencia a compresión generó un incre...
