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1
artículo
Publicado 2017
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Executive functions (FE) are considered as a theoretical construct, referring to the capacity we have as human beings to plan, organize, inhibit, monitor our behavior and be flexible in the face of novel situations. However, this definition is not the only one, since many authors conceptualize it in different ways and this means that different models are presented that try to explain the nature of such functions; However, a consensus has not yet been reached.Therefore, the present work, brings to light those models that seek to explain executive functions in all their magnitude and complexity, finding from anatomical positions to statistical trends or to consider how they develop the FE in the stages of development, the same that were Raised in order to have a better understanding of them.
2
tesis de grado
Publicado 2024
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Las alteraciones de las hormonas tiroideas afectan al homeostasis en el ser humano, el hipertiroidismo puede ocasionar un aumento en la producción de la glucosa y los últimos estudios indican que el hipotiroidismo guarda relación con la hipoglucemia; además, aunque los niveles de insulina son importantes en las afecciones relacionadas con la glucosa, aun es poco empleada en problemas como la diabetes en algunas instituciones. se empleó un diseño hipotético-deductivo, de tipo cuantitativo, correlacional y transversal, donde la muestra fueron 225 los pacientes con datos de resultados de insulina y perfil hormonal tiroideo que asisten al laboratorio, se utilizó un instrumento para recolectar los datos y la prueba de normalidad de Kolmogorov-Smirnov y la prueba de T de Student. Se determinó una correlación positiva y estadísticamente significativa entre los valores de insulina sé...
3
El objetivo de este trabajo de investigación fue el piso es la piel de más arriba de la Tierra, es didáctica y de poco tamaño en donde habita la existencia y funciona como camino del aire, del agua, del viento y de la vida en la Tierra ya que posee factores de cada una de estas. El suelo franco es el que tiene la mejor textura para el desarrollo de los cultivos. Los suelos con una proporción adecuada de arena suelen contener suficiente aire para el buen desarrollo de plantas y bacterias benéficas. Tiene poros de buen tamaño, lo que facilita el drenaje. El problema de los suelos arcillosos es que, si el contenido de arcilla es muy alto, el suelo tiende a hacerse impermeable ya que la arcilla se hincha al hidratarse. Este aumento de volumen tapa los poros del suelo e impide la percolación (infiltración) del agua. Las buenas prácticas agrícolas conservarán la vida de los suelos ...
4
artículo
Freshwater algae are considered a very important resource within the food industry due to their high nutritional content and bioactive compounds. This review article aims to address microalgae and macroalgae as alternative/complementary protein sources and explore their potential applications in food products. The main types of freshwater microalgae (including cyanobacteria such as Arthrosporic and green algae such as Chlorella, Scenedesmus, and Haematococcus) are described, their morphology, ecological relevance, and applications (food, nutraceutical, and industrial). Likewise, the extraction and application methods of their components (conventional, ultrasonic, Soxhlet, microwave, CO2 (SFE) are detailed, comparing principles, operating parameters, yields, and benefits for the industry. The proximate and micronutrient composition of each algae (proteins, carbohydrates, lipids, ash, mois...
5
artículo
Publicado 2006
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This paper highlights the need to examine the role of a constituent assembly within a democratic and constitutional system. To this end, a detailed analysis of the issue is undertaken on the basis of doctrine and constitutional history. It is concluded that the purpose of a constituent assembly is to establish a constituent power and to reform the constitution. Constituent power is the ability of a society to create or reform fundamental rights and the structure of government. Thus, the Constituent Assembly is the way in which the people exercise this power with the aim of amending the existing constitution or creating a new one. However, the author points out that there is one element that cannot be excluded by this power, and that is constitutional democracy. In this sense, this article provides a detailed study that helps to understand what a Constituent Assembly implies as a key enti...
6
artículo
Publicado 2021
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Se realizó un experimento para evaluar los efectos del descanso al pastoreo sobre la estructura de la vegetación, la función hidrológica y el estatus ecológico en pastizales de condición regular para vacunos. El área de estudio está ubicada a 4 095 msnm, en la comunidad campesina Cordillera Blanca, Región Ancash, Perú. El diseño experimental fue factorial 2 x 2 en bloques, donde los factores fueron: a) dos sistemas de pastoreo P1: Pastoreo no controlado en tierras de usufructo comunal y P2: Descanso o exclusión total de pastoreo, y b) tres años de monitoreo comprendidos entre el 2011 al 2013. Al finalizar el estudio, la estructura de la vegetación fue cambiando según el régimen de uso del pastizal, en donde el descanso favoreció al aumento de especies de gramíneas nativas y en detrimento de las hierbas, pseudogramíneas y arbustos. El descanso incrementó la cobertura v...
7
artículo
Publicado 2019
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Intelligence is a construct of notable impact in our sociocultural context, related to a wide range of conceptual and operational definitions which originate positions that highlights cognitive and abstract elements and emotional and social skills, as well was perspectives that are focused on processes underlying the intelligent performance, such as in the case of executive functions (EFs), which are configured as cognitive processes that make it possible the self-regulation (Miyake & Friedman, 2012). Similarly, there are approaches that give intelligence a relevant and predictive role of school performance, an aspect strengthened by the psychometric perspective, where the concept of intelligence has been closely linked to learning. In this line, we also find the classical perspective of crystallized Intelligence of Cattell (1943), which refers to the knowledge acquired through educa...
8
artículo
Publicado 2019
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Intelligence is a construct of notable impact in our sociocultural context, related to a wide range of conceptual and operational definitions which originate positions that highlights cognitive and abstract elements and emotional and social skills, as well was perspectives that are focused on processes underlying the intelligent performance, such as in the case of executive functions (EFs), which are configured as cognitive processes that make it possible the self-regulation (Miyake & Friedman, 2012). Similarly, there are approaches that give intelligence a relevant and predictive role of school performance, an aspect strengthened by the psychometric perspective, where the concept of intelligence has been closely linked to learning. In this line, we also find the classical perspective of crystallized Intelligence of Cattell (1943), which refers to the knowledge acquired through educa...
9
artículo
Owing to the impossibility of explaining the abrupt changes in the Peruvian economy, especially since 1968, using traditional variables (physical capital and workforce), this piece attempts to do so by applying fresh ones (human capital, government spending and real liquidity). These provide an explanation for a substantial part of the function of production in the Peruvian economy between 1960 and 1990. The use of these variables is grounded in the models of growth with endogenous technical progress, which suggest that an economy's growth does not depend on any single factor but a combination of them. The study confirms this fact for readers.
10
artículo
Publicado 2009
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El chincho (Tagetes elliptica Sm) es una hierba aromática de la sierra del Perú, normalmente utilizada como aditivo culinario, aparte de esta resaltante propiedad, en algunos casos es utilizada para fines terapéuticos, lo que aparentemente evidencia que posee otras propiedades. Con el fin ampliar la información sobre las propiedades funcionales de esta hortaliza, se planteó investigar los componentes antioxidantes: vitamina C y flavonoides, para ello se plantearon los siguientes objetivos: determinar el contenido de vitamina C (por espectrofotometría), flavonoides 3-hidroxilo en extractos acuoso y etenólico (por espectrofotometría), y el contenido de catequinas en las hojas del chincho (por HPLC). Los resultados fueron: vitamina C igual a 14,49 mg de ácido ascórbico/100g de muestra húmeda; flavonoides 3-hidroxilo igual 39,72 mg de ácido gálico/g de muestra y flavonoides en t...
11
artículo
Perception of family functioning: psychometric analysis of Family APGAR Scale in adolescents in Lima
Publicado 2014
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The article describes the psychometric analysis of the APGAR Scale developed by Smilkstein (1978), consisting of five Likert items with five alternatives, which evaluates the perception of family functioning (Gómez & Ponce, 2010). The scale was administered to 256 male students aged from 11 to 18 attending state school in Lima. Item-test correlation analysis provided evidence of highly significant relations (p<0.001) for each of the reagents, indicating that reagents evaluate indicators of the same construct. To assess the perception of family functioning, APGAR Scale has moderate internal consistency (Cronbach a = .788). Construct validity was established by factor analysis and a single factor was obtained through a principal component analysis and the orthogonal rotation (Varimax).
12
artículo
Perception of family functioning: psychometric analysis of Family APGAR Scale in adolescents in Lima
Publicado 2014
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The article describes the psychometric analysis of the APGAR Scale developed by Smilkstein (1978), consisting of five Likert items with five alternatives, which evaluates the perception of family functioning (Gómez & Ponce, 2010). The scale was administered to 256 male students aged from 11 to 18 attending state school in Lima. Item-test correlation analysis provided evidence of highly significant relations (p<0.001) for each of the reagents, indicating that reagents evaluate indicators of the same construct. To assess the perception of family functioning, APGAR Scale has moderate internal consistency (Cronbach a = .788). Construct validity was established by factor analysis and a single factor was obtained through a principal component analysis and the orthogonal rotation (Varimax).
13
artículo
Publicado 2012
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The rationale of this paper is to report by presenting data on the direct recognition of the canal that supplied water for over three hundred years to the city of Wari, from investigations with excavations in several sections of the channel, as a reference for qochas work, canals, reservoirs supplying the metropolis Wari (Perez 2006, 2007 and 2010) and as part of the hydrologic and hydraulic study of inca canal Wari Wari Yarccan or Yarcca in Ayacucho (Chavarría 2010). We believe that this is a great proyec for social and economic infraestructure that the Wari state executed in the Andes during the second half of the first millennium od the present Christian era, about 800 yerars before formation of the Empire of Tawantinsuyo.
14
tesis de grado
Publicado 2018
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En el Perú, el sistema financiero está regulado por la Ley general del Sistema Financiero y del sistema de seguros y Orgánica de la Superintendencia de Banca y Seguros (SBS) y (AFP) Ley No 26702, esta Ley constituye el marco de regulación y de supervisión al que se someten todas las empresas que operan en el sistema financiero y de seguros. La Superintendencia de Banca, Seguros y AFPS (SBS), es una institución de Derecho Público, cuya autonomía funcional, económica y administrativa, está reconocida por la constitución Política del Estado peruano. La morosidad crediticia, es decir, la suma de lo que los deudores de los bancos y las cajas de ahorro tienen atrasado en el pago, ha adquirido el carácter de asidua noticia periodística en razón de su desusado crecimiento. En los diez primeros meses de 1992 ha alcanzado la cifra de dos billones, un 25% más que a finales de 1991, ...
15
artículo
Publicado 2023
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The Quality Function Deployment (QFD) and the Theory of Inventive Problem Solving (TRIZ) are independent methodologies, that can be used and developed freely, but can be an important enhancer when you want to achieve innovation if they work together. The objective of this article is to present an analysis of the customers’ requirements in a product manufactured with biodegradable materials, the output result when applying the QFD was the quality critic related to toxicity, while the input information for the matrix TRIZ’s technical contradictions were the translation of the quality critic to one of the 39 technical design parameters, corresponding to parameter 30 (Harmful factors acting on the object from outside), being considered as the transfer point between the methodologies thus achieving the integration of both.
16
artículo
Publicado 2023
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The Quality Function Deployment (QFD) and the Theory of Inventive Problem Solving (TRIZ) are independent methodologies, that can be used and developed freely, but can be an important enhancer when you want to achieve innovation if they work together. The objective of this article is to present an analysis of the customers’ requirements in a product manufactured with biodegradable materials, the output result when applying the QFD was the quality critic related to toxicity, while the input information for the matrix TRIZ’s technical contradictions were the translation of the quality critic to one of the 39 technical design parameters, corresponding to parameter 30 (Harmful factors acting on the object from outside), being considered as the transfer point between the methodologies thus achieving the integration of both.
17
artículo
Publicado 2017
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Los bosques amazónicos son ecosistemas sensibles al fuego y, en consecuencia, los incendios afectan a la estructura y composición del bosque. Por ejemplo, el vestigio de los incendios pasados puede persistir a través de algunas especies y rasgos que se encuentran debido a los fuegos históricos. En este estudio se comprueban las relaciones entre los rasgos funcionales que se presentan clásicamente como los principales componentes de las estrategias ecológicas de las plantas y los filtradores ambientales relacionadas con el clima y los incendios históricos entre las parcelas de bosque maduro permanente a lo largo del rango de gradientes ambientales locales y regionales que se dan en la Amazonia. Se utilizó el porcentaje de carbono pirogénico superficial del suelo (PyC), una forma recalcitrante de carbono que puede persistir durante milenios en los suelos, como un nuevo indicador d...
18
artículo
Publicado 2008
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A total of 90 children (boys and girls) from a Psychological Center in Lima were subjected o a correlational study, where the research questions was: Are coordination and motor function related to mental maturity in children (boys and girls) aged from 4 to 8 years?
19
artículo
Publicado 2008
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A total of 90 children (boys and girls) from a Psychological Center in Lima were subjected o a correlational study, where the research questions was: Are coordination and motor function related to mental maturity in children (boys and girls) aged from 4 to 8 years?
20
artículo
Publicado 2013
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The application of different unit root statistics is by now a standard practice in empirical work. Even when it is a practical issue, these statistics have complex nonstandard distributions depending on functionals of certain stochastic processes, and their derivations represent a barrier even for many theoretical econometricians. These derivations are based on rigorous and fundamental statistical tools which are not (very) well known by standard econometricians. This paper aims to fill this gap by explaining in a simple way one of these fundamental tools: namely, the Functional Central Limit Theorem. To this end, this paper analyzes the foundations and applicability of two versions of the Functional Central Limit Theorem within the framework of a unit root with a structural break. Initial attention is focused on the probabilistic structure of the time series to be considered. Thereafter...
