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1
artículo
Publicado 2012
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Se repasan algunas propiedades de la función de correlación de Beurling, que sirven para expresar ciertas propiedades de la función zeta de Riemann.
2
artículo
Publicado 2017
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The goal of the present work is to study some properties and applications of the Gamma Function, denoted by Γ. Initially, we use the Lebesgue Integral Theory in order to prove that the improper integral given by Γ is convergent. We describe the extended domain property of Γ, and we also deduce some elementary properties. We present two different ways of proving that B(x, y) = Γ(x)Γ(y)/Γ(x+y) , where B is the Beta Function. Finally, we include some applications of the Gamma Function, between them some serve up as tools on Reliability Engineering.
3
artículo
Publicado 2017
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The goal of the present work is to study some properties and applications of the Gamma Function, denoted by Γ. Initially, we use the Lebesgue Integral Theory in order to prove that the improper integral given by Γ is convergent. We describe the extended domain property of Γ, and we also deduce some elementary properties. We present two different ways of proving that B(x, y) = Γ(x)Γ(y)/Γ(x+y) , where B is the Beta Function. Finally, we include some applications of the Gamma Function, between them some serve up as tools on Reliability Engineering.
4
artículo
Currently there is a great demand for food products containing functional properties and/or bioactive compounds. One of the fruits that has been widely studied is the murta (Ugni molinae), which appears to contain various beneficial health properties. This review compiles scientific information on the functional and beneficial properties of murta for human health, such as the main components associated with anti-inflammatory activity, antimicrobial activity, antioxidant activity, nutritional composition, other uses of murta, economic aspects, and current and future challenges of murta, all based on updated scientific work.
5
artículo
Currently there is a great demand for food products containing functional properties and/or bioactive compounds. One of the fruits that has been widely studied is the murta (Ugni molinae), which appears to contain various beneficial health properties. This review compiles scientific information on the functional and beneficial properties of murta for human health, such as the main components associated with anti-inflammatory activity, antimicrobial activity, antioxidant activity, nutritional composition, other uses of murta, economic aspects, and current and future challenges of murta, all based on updated scientific work.
6
artículo
Publicado 2017
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The maximum chemical and functional conservation of the yacón by the organic sterilization system, was achieved by applying a load of 4 kg / pouch, 1 min. process time and temperature 100 °C saturated steam injection. Under these conditions, was obtained 2,4 % (db) protein and 52 % (db) of fructooligosaccharides. Regarding the microbial load, 60,59 % (10 CFU / g), 65,76 % (20 CFU / g) and 0 % (<10 CFU / g) for aerobes, molds, and yeasts, respectively decreased; pathogenic behavior was very similar to that of the raw material: E. coli <3 CFU / g, absence of Salmonella (25 g) and <3 CFU / g for total coliforms, whose samples were able to adjust to the demands of the health standard Peruvian and international standards; which showed that applying the OSS technology is accomplished to preserve the nutritional and functional quality of yacon.
7
artículo
Publicado 2024
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The Childhood Executive Functioning Inventory (CHEXI) is a widely used test in educational settings to identify deficits in Executive Functions (EF). This study aimed to adapt and evaluate the Spanish version of CHEXI in a sample of participants from Ecuador (n = 467). The study measured understanding using slightly different versions of the instrument, one initially administered to 373 participants and another withthree item changes used to assess 144 new participants. Cronbach’s alpha (α) and McDonald’s omega (ω) were used to assess internal consistency. Absolute (χ²/df) and incremental fit indices (CFI, TLI, SRMR,RMSEA) evaluated construct validity. The two-factor structure of CHEXI (Working Memory and Inhibition) was successfully replicated, demonstrating a good fit and high internal consistency. The Spanish version, with the two first-order correlated factors and modificatio...
8
artículo
Publicado 2024
Enlace
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The Childhood Executive Functioning Inventory (CHEXI) is a widely used test in educational settings to identify deficits in Executive Functions (EF). This study aimed to adapt and evaluate the Spanish version of CHEXI in a sample of participants from Ecuador (n = 467). The study measured understanding using slightly different versions of the instrument, one initially administered to 373 participants and another withthree item changes used to assess 144 new participants. Cronbach’s alpha (α) and McDonald’s omega (ω) were used to assess internal consistency. Absolute (χ²/df) and incremental fit indices (CFI, TLI, SRMR,RMSEA) evaluated construct validity. The two-factor structure of CHEXI (Working Memory and Inhibition) was successfully replicated, demonstrating a good fit and high internal consistency. The Spanish version, with the two first-order correlated factors and modificatio...
9
artículo
Publicado 2020
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Lucuma is a superfruit of Andean origin, with ovoid shape, greenish yellow color, nice smell, and intense sweet taste. In recent years this superfruit has won great popularity in the international market, and its demand tends to increase exponentially in the future, due to its properties as a functional food for its bioactive components like β-carotens, niacin, phenolic components, phytosterols, among others that give this fruit beneficial properties for health, such as its anti-inflammatory action, antioxidant effect, antihypertensive action, antibacterial, energizing, healing, and its use as a natural sweetener. Currently, research is being carried out about its influence on metabolism, its antidiabetic, anti-cancer capacity and its use to prevent heart disease and counteract Alzheimer's. The properties of lucuma are still under study and greater benefits and applications are expect...
10
artículo
Publicado 2020
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Lucuma is a superfruit of Andean origin, with ovoid shape, greenish yellow color, nice smell, and intense sweet taste. In recent years this superfruit has won great popularity in the international market, and its demand tends to increase exponentially in the future, due to its properties as a functional food for its bioactive components like β-carotens, niacin, phenolic components, phytosterols, among others that give this fruit beneficial properties for health, such as its anti-inflammatory action, antioxidant effect, antihypertensive action, antibacterial, energizing, healing, and its use as a natural sweetener. Currently, research is being carried out about its influence on metabolism, its antidiabetic, anti-cancer capacity and its use to prevent heart disease and counteract Alzheimer's. The properties of lucuma are still under study and greater benefits and applications are expect...
11
artículo
Publicado 2024
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The germination of quinua improves the content of polyphenols, flavonoids, amino acids, dietary fiber, vitamin E, antioxidants and other bioactive compounds, making this pseudocereal a nutritious and healthy source for the preparation of functional foods. The aim of this work was to assess the effect of the germination of quinua on the nutritional, biological and functional properties, in turn to be able to analyze the potential that this golden grain has in the food industry. For the systematic review, the databases (Scopus, Scielo and Science Direct) were used, following the PRISMA guideline and the PIO strategy (Population, Intervention, Outputs), which helped to formulate the search equations and to identify the most relevant articles of the last 5 years. The results of the bibliometric analysis showed that the germination of quinua improves the nutritional properties and the content...
12
artículo
Publicado 2024
Enlace
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The germination of quinua improves the content of polyphenols, flavonoids, amino acids, dietary fiber, vitamin E, antioxidants and other bioactive compounds, making this pseudocereal a nutritious and healthy source for the preparation of functional foods. The aim of this work was to assess the effect of the germination of quinua on the nutritional, biological and functional properties, in turn to be able to analyze the potential that this golden grain has in the food industry. For the systematic review, the databases (Scopus, Scielo and Science Direct) were used, following the PRISMA guideline and the PIO strategy (Population, Intervention, Outputs), which helped to formulate the search equations and to identify the most relevant articles of the last 5 years. The results of the bibliometric analysis showed that the germination of quinua improves the nutritional properties and the content...
13
artículo
Publicado 2016
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Camu camu is the fruit that has the highest content of vitamin C, which is 100 times higher than the lemon. This tropical fruit is native to the Amazon region and it is mainly distributed in Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela. In its composition, it has different bioactive compounds such as carotenoids, antioxidants, vitamins and phenolic compounds such as anthocyanins and tannins that give it the characteristics of a functional food. It also has beneficial properties on the health of those who consume it, because it is considered a powerful antioxidant, anti-inflammatory and antimicrobial; it is also a great ally against cardiovascular diseases and for people suffering from obesity. Research shows a positive effect for the treatment of early stages of diabetes, as well as providing other benefits. This review work aimed to study the literature regarding camu-camu as ...
14
artículo
Publicado 2016
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Camu camu is the fruit that has the highest content of vitamin C, which is 100 times higher than the lemon. This tropical fruit is native to the Amazon region and it is mainly distributed in Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela. In its composition, it has different bioactive compounds such as carotenoids, antioxidants, vitamins and phenolic compounds such as anthocyanins and tannins that give it the characteristics of a functional food. It also has beneficial properties on the health of those who consume it, because it is considered a powerful antioxidant, anti-inflammatory and antimicrobial; it is also a great ally against cardiovascular diseases and for people suffering from obesity. Research shows a positive effect for the treatment of early stages of diabetes, as well as providing other benefits. This review work aimed to study the literature regarding camu-camu as ...
15
artículo
In the present work we realize a systematic study of the optical properties of transition metal dichalcogenides using time dependent density functional theory for the determination of excited states of conduction band considering the electron density as a time dependent functional and temporarily affect the screening Coulomb potential which is used in Dyson equation for electric susceptibility determination. We calculate the real and imaginary parts of dielectric function which permit us to observe the absorption coefficient and the plasmon formation for electromagnetic radiation photons from the infrared (25 meV) to ultraviolet (30 eV) range. And we found that the imaginary parts of zz component of the 2D systems have not absorption peaks, meanwhile, the xx, yy and zz components of the 2D systems have not shown plasma frequencies.
16
artículo
Publicado 2024
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La capacidad de retención de agua del suelo en el punto de marchitamiento permanente es fundamental para el estrés hídrico de las plantas en un tipo de suelo específico. Este estudio se llevó a cabo para formular un modelo de regresión o ecuación para predecir los puntos de marchitamiento permanente (PWP) de los suelos en un Alfisol típico de origen complejo basal en la Granja de Enseñanza e Investigación de la Universidad de Ilorin. Se recogió un total de cuarenta y cinco (45) muestras de suelos alterados y cuarenta y cinco (45) no alterados a lo largo de una toposequencia (pendiente superior, media e inferior) a 3 profundidades: 0 cm - 30 cm, 30 cm - 60 cm, y 60 cm - 90 cm. Las propiedades del suelo de las muestras perturbadas y no perturbadas se determinaron utilizando métodos experimentales básicos y/o se calcularon utilizando técnicas acreditadas. Las propiedades del s...
17
tesis de grado
Publicado 2021
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La presente investigación es experimental y tiene como objetivo mejorar las propiedades del ladrillo artesanal adicionando residuos sólidos, para comparar con el ladrillo de la Norma E-070. Para ello, se realizó la fabricación artesanal de 280 ladrillos de arcilla (4 grupos iguales), grupo control y grupos donde se añadió diferentes porcentajes (3%, 5% y 7%) de residuos sólidos (cerámica molida, aserrín de pino y mortero de revestimiento); que pasado los 30 días se realizaron los ensayos de laboratorio en la Universidad Privada del Norte, como: variación dimensional, alabeo, y resistencia a la compresión. Resultando que el ladrillo de arcilla sin adición de residuos tiene una resistencia promedio a compresión de 28.84Kg/cm2 y al adicionar el 3% de residuos se obtiene 35.96Kg/cm2, los cuales son favorables; en cambio al adicionar el 5% y 7% disminuye significativamente. Conc...
18
artículo
Publicado 1983
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In Roman Law, the classification of property into movable and immovable has responded to a criterion of mobility corresponding to the nature and physical characteristics of things. On the other hand, in the old French Law, the classification criterion was mainly based on an economic criterion, in which the value, the duration and the possibility of the goods to produce income periodically predominated. With the implementation of the French Civil Code (1804), the division between movable and immovable property acquired universality, being repeated in almost all Western legislations. However, in this paper we recognize that this classification has certain shortcomings, especially because it doesn’t meet all current requirements. Thus, its ineffectiveness is criticized, as well as the ineffectiveness of Peruvian legislation because it’s based on it. In this line, it’s proposed to repl...
19
tesis de grado
Publicado 2017
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La conjetura de Fermat fue uno de los acertijos matemáticos más misteriosos hasta 1995. El problema fue formulado en 1637 por Pierre de Fermat. Él afirmó saber cómo resolverlo, sin embargo, no podía mostrar la prueba debido a que el espacio en el margen de su copia de Arithmetica de Diofanto era insuficiente. Desde entonces mucho misticismo rodeó a la conjetura. Mientras tanto, independientemente, nuevas ramas de las matemáticas se desarrollaban. La geometría algebraica y el análisis complejo permitieron a Andrew Wiles resolver finalmente la conjetura. La solución involucra, entre otras herramientas, el uso de curvas elípticas. Esto es suficiente motivo para estudiarlas. En líneas generales las curvas elípticas son polinomios cúbicos no singulares en dos variables con un punto especial de coordenadas racionales en los que podemos establecer una estructura de grupo. Para ma...
20
tesis de grado
Publicado 2017
Enlace
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La conjetura de Fermat fue uno de los acertijos matemáticos más misteriosos hasta 1995. El problema fue formulado en 1637 por Pierre de Fermat. Él afirmó saber cómo resolverlo, sin embargo, no podía mostrar la prueba debido a que el espacio en el margen de su copia de Arithmetica de Diofanto era insuficiente. Desde entonces mucho misticismo rodeó a la conjetura. Mientras tanto, independientemente, nuevas ramas de las matemáticas se desarrollaban. La geometría algebraica y el análisis complejo permitieron a Andrew Wiles resolver finalmente la conjetura. La solución involucra, entre otras herramientas, el uso de curvas elípticas. Esto es suficiente motivo para estudiarlas. En líneas generales las curvas elípticas son polinomios cúbicos no singulares en dos variables con un punto especial de coordenadas racionales en los que podemos establecer una estructura de grupo. Para ma...
