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Copyright of Revista Colombiana de Entomología is the property of Universidad del Valle and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective of this study was to evaluate the addition of quinoa flour (HQ) in wheat flour (HT) cookies with oats, its effect on physicochemical, textural and sensory properties. The properties such as water absorption (CAA) and oil (CAAc) of the flour mixtures for the preparation of cookies were also analyzed. Three treatments with different levels of Oat flakes and HQ were evaluated, T0: 15% and 0%, T1: 10% and 5% and T2: 5% and 10%. It was found that the HQ and Oats affect the CAA of the flours, since T1 (186.62 ± 3.25%) and T2 (184.71 ± 3.62%) decrease with respect to the control sample (194.23 ± 3.57%), while the CAAc benefits, T2 presented the maximum value (169.05 ± 7.84%) with respect to the control sample (147.79 ± 4.68%), and the humidity of the mixtures presented significant differences (5.36 ± 0.38%, 6.42 ± 0.24% and 6.13 ± 0.07%). In the biscuits, differences were found in the moisture content of T0 (0.47 ± 0.03%) and T1 (0.42 ± 0.02%) compared to T2 (0.62 ± 0.05%). evidenced significant differences in water activity for all treatments; No differences were found in the extension ratio and the evaluated textural properties are affected by the addition of HQ, mainly hardness. Significant differences were also found in color, mainly the L* and a* parameters for the T1 and T2 treatments. Finally, in the sensory evaluation carried out by a panel of 56 people, the accepted treatment was T1 (73% preference). The nutritional composition of the cookies demonstrated a high protein content compared to other products, generating possibilities for the development of baked products with high nutritional value. [ABSTRACT FROM AUTHOR]

Copyright of Nacameh is the property of Universidad Autonoma Metropolitana Unidad Iztapalapa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ingeniería (0121-750X) is the property of Ingenieria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

El objetivo de este estudio fue determinar la cinética de cambio de color en papa (Solanum tuberosum), variedad huagalina, huayro, limeña y peruanita, en el proceso de fritura, utilizando visión computacional. Con este fin se aplicaron modelos de orden cero, primer orden y Weibull. Para el color se utilizó como índice de pardeamiento el valor de luminosidad (L). La cinética fue evaluada con imágenes cada 5 segundos, en el proceso de fritura, utilizando un sistema de visión computacional; transformándose de color espacial RGB a color L* a* y b* con el modelo propuesto para obtener los parámetros de color L* a* y b*. El valor de luminosidad (L) disminuye en el proceso de fritura de papa (Solanum tuberosum) en todas las variedades para los tres modelos matemáticos. El modelo Weibull es el más adecuado en (R2) para describir la cinética de pardeamiento y permitiría la automatización de un proceso de fritura, que se detendría en el tiempo justo, evitando costos adicionales por uso de energía, así como producto final con mala calidad sensorial.

Contexto: La conservación de frutas mínimamente procesadas es un tema muy importante en la industria alimentaria debido al incremento en el consumo de este tipo de alimentos. Esta investigación estudia los efectos que provocan los recubrimientos comestibles a base de aloe vera y almidón de yuca en piña mínimamente procesada. Método: Se evaluaron propiedades como textura y color, y se realizó análisis microbiano después de 12 días de almacenamiento a 4 °C. Se probaron cuatro tratamientos (T1, T2, T3 y T4): piña Oro Miel con soluciones de recubrimiento con diferentes concentraciones de aloe vera/almidón (T1:75/25, T2:50/50, T3:25/75) y un tratamiento control (T4) que consistió en la fruta sin recubrimiento. Los recubrimientos se realizaron sumergiendo la fruta previamente procesada durante 1 min. Resultados: Los resultados indicaron que el tratamiento T2 obtuvo la mejor textura y T4 mostró una mayor luminosidad. Los parámetros microbiológicos se mantuvieron dentro de los establecidos por la Norma Técnica Colombiana (NTC 4519) para fruta mínimamente procesada durante los 12 días de conservación. Conclusión: El recubrimiento comestible puede mantener la textura e inhibir el crecimiento de microorganismos en la piña Oro Miel. Sin embargo, la luminosidad de la fruta puede verse afectada por el uso de estos recubrimientos comestibles.

Mexico produces 30 790.7 t per year of soursop fruits (FG), Nayarit contributes 75.4 %. The FG are perishable, it is proposed to develop edible coatings (RC). The objective was to evaluate CR based on starch (2 %) of FG (2 % w/v) in FG stored at 15 ± 2 °C and 22 ± 2 °C. Weight loss PP (%), firmness F (N), titratable acidity AT (%), total soluble solids TSS (°Brix) and color (L*C*H) were evaluated. Treatment design: FG without CR at 22 ± 2 °C for 8 d (T1), FG with CR at 22 ± 2 °C for 10 d (T2) and FG without CR (T3) and FG with CR at 15 ± 2 °C for 4 d and subsequently transferred to 22 ± 2 °C for 8 d (T4), RH 90%. The PP was 10.3 (T1) and 6.1(T2), F of 45.9 (T1) and 26.2 (T2), at the end of storage AT of 0.94 (T1) and 0.56 (T2) and SST of 15.8 (T1) and 15.5 (T2). At T3 and T4, PP was 10.5 and 10.4, respectively, F was 9.6 (T3, 8 d) and 19 (T4, 10 d), AT was 0.26 (T3) and 0.27 (T4), SST was 12.2 (T3) and 11.4 (T4) at the end of storage. The fruits of T4 presented a green color with low luminosity (L: 43.9 C: 15.5 H: 105) at the end of storage. The fruits of T2 presented less loss of weight and firmness, high concentration of TSS at 4 d of storage. The coating does not affect the fruits stored in both storage conditions. [ABSTRACT FROM AUTHOR]

Copyright of Ensayos - Revista de Economía is the property of Ensayos Revista de Economia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Se utiliza la metodología desarrollada por Henderson, Storeygard y Weil (2012), quienes analizan fotografías satelitales para medir el desempeño económico de las principales 15 zonas turísticas de playa en México, para el periodo de 1993 a 2017, tomando en consideración que son subregiones y muchas pueden abarcar más de una entidad federativa. El análisis se basa en la existencia de una correlación directa y positiva entre la actividad económica y la luminosidad observada desde el espacio. Los resultados indican que las áreas de mayor crecimiento se ubican en la región centro-norte del país, específicamente en Baja California Sur. En el periodo de análisis, existió una gran heterogeneidad en el grado de crecimiento económico entre los distintos destinos de playa en México, en donde se destacan dos factores, los destinos de playa orientados al turismo receptivo y los niveles de inseguridad en dichas zonas. Abstract We use the methodology developed by Henderson, Storeygard, and Weil (2012), which analyze satellite photographs to measure the economic performance of the main 15 beach tourist areas in Mexico for the 1993-2017 period, considering that these are sub-regions and many of them spread over more than one state's boundaries. The analysis is based on the fact that there is a direct and positive correlation between economic activity and luminosity observed from space. The results indicate that the areas of higher growth rates are in the central-northern region, specifically in Baja California Sur. The analysis period exhibits significant heterogeneity in the degree of economic growth among the different beach destinations in Mexico, where two factors stand out: beach destinations oriented to receptive tourism and levels of insecurity in these areas.

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

El mercado mundial de bebidas de frutas está interesado en jugos exóticos con alto valor nutricional y parte de esa demanda puede satisfacerse con derivados de uchuva. Por lo tanto, el objetivo de este estudio fue evaluar el efecto de la pasteurización sobre la concentración de vitamina C, carotenoides y el color superficial del jugo de uchuva. Frutos de uchuva en estado de madurez 5 (amarillo-naranja) se procesaron en un extractor de jugo comercial y el jugo obtenido se mezcló con agua destilada en una relación 1:1. Se evaluaron dos tratamientos de pasteurización (80 °C durante 15 minutos y 94 °C durante 29 minutos) para conocer sus efectos sobre las variables de respuesta (vitamina C, carotenoides y color superficial). Los resultados indican que los tratamientos de pasteurización no afectaron significativamente la concentración de vitamina C y la luminosidad. Sin embargo, los tratamientos térmicos aumentaron significativamente (p

Changes in color and color stability of cyanidin and cyanidin 3-O-β-glucopyranoside (Cy3Glc) in aqueous solutions were investigated at pHs from 0.5 to 13.1, by combination of colorimetry and spectrophotometry. The glucosidic substitution at C-3 of cyanidin (i.e., Cy3Glc), moved the tonalities toward the yellow pole of the chromatic circle, which resulted in high Chroma increases and a hypsochromically shifted visible absorbance maximum (λmax-vis). Under the most acidic and alkaline conditions, cyanidin showed greater Lightness compared with the rest of the pH range. At these extreme pHs, the lower Lightness of Cy3Glc was coupled with a high Chroma value. As a consequence, Cy3Glc showed its most intense color under the most acidic and alkaline conditions, and did not show visually perceptible color at neutral pH. At pH <3 and from pH 10 to11 cyanidin had lower color stability than Cy3Glc. We show the correlations between the data for these color and stability variations for cyanidin and Cy3Glc over the entire pH range. [ABSTRACT FROM AUTHOR]

El objetivo de la investigación fue evaluar la cinética de degradación de vitamina C y Color (Luminosidad) en la pulpa de pitahaya (Hylocereaus monacanthus), a temperaturas de 75, 80, 85, 90° C. La temperatura y tiempo tienen efecto significativo (al 95% de confiabilidad) sobre las variables dependientes, afectando negativamente. Tanto la degradación del ácido ascórbico como la degradación de los parámetros de color (luminosidad) fueron bien descritas por modelos cinéticos de primer orden y la dependencia de la temperatura fue satisfactoriamente representada por la ley de Arrhenius.

The lack of knowledge about grow dynamics of the living tree crown of Nothofagusobliqua secondary growth forests strongly limits the objective formulation of silvicultural schemes oriented to the industrial production of high quality wood. Therefore, in this work, we described basic relationships between tree size, age and angle branches insertion and the crown. Considering a sample data of 59 dominant trees, distributed in different age conditions, we applied a combined analysis technique of stem analysis, steam taper analysis and thickest branch measurement in each decile of the total height. This approach allowed us to determine that there is a significant relationship between the steam diameter, the angle insertion and the age of the branch, as well as the size and age of the trees. Also, the thicker branches tend to have lower insertion angles, to be older, to be located at lower relative heights and to be located in larger diameter sections. Taking into consideration these relationships, it is possible to build new predicted branch models as tools for the development of silvicultural schemes to suit different log grade.

After the long shut-down, the LHC Run2 has started with new running conditions with respect to Run1: in particular the centre of mass energy has reached 13 TeV and the bunch-spacing is now 25 ns. In order to cope with these changes, the ATLAS luminosity monitor LUCID and its electronics have been completely rebuilt. This note describes the new detector and electronics, the new luminosity algorithms and the new calibration systems, with a brief review of the first results about the stability of the measurement and evaluation of systematic uncertainties for the 2015 data.

The objective of this work was to propose a color and temperature measurement prototype constructed with the temperature sensor DHT11 and the color sensor TCS230-3200 connected to an Arduino Nano, with a serial connection information was transferred to a computer with PXL-DAQ and Microsoft Excel® 2013 programs, the color measurements were recorded in RGB color model for a conversion to CIE L*a*b* system. A simultaneous color and temperature measurement equipment at pilot level, as the one proposed in this paper, becomes an economical alternative to costly commercial equipment. With the prototype the luminosity loss and changes of temperature of yacon (Smallanthus sonchifolius) were quantified, and the changes of browning indexes and color difference. These parameters presented a behavior similar to that found in the literature. [ABSTRACT FROM AUTHOR]

INTRODUCCIÓN:el objetivo de este estudio fue determinar si el entrenamiento, consistente en entrega de contenidos teóricos y el uso de un programa computacional, mejora a corto plazo la discriminación visual de la dimensión más importante en la selección de color dentario: la luminosidad. MÉTODOS: 451 estudiantes que cumplieron con los criterios de inclusión, participaron del estudio firmando un consentimiento informado. Cada uno debió ordenar las 16 muestras de la guía Vitapan Classical, de mayor a menor luminosidad, según escala del fabricante. Este procedimiento se realizó con el código de identificación cubierto, en un tiempo de 3 min, bajo luz día, sobre un fondo de color gris neutro. Se hizo una primera ordenación sin entrenamiento. Posteriormente se realizó el entrenamiento que consistió en una clase teórica de 45 min y práctica durante 1 hora, utilizando los 7 grupos de ejercicios del programa computacional Color training exercises. Finalmente, cada participante hizo una segunda ordenación a la semana siguiente del entrenamiento. Los resultados fueron comparados usando el test T de Student para muestras pareadas. RESULTADOS:en la primera ordenación se obtuvo un porcentaje de aciertos de 33,3% y luego del entrenamiento un promedio de 33,6%. No se observaron diferencias significativas (p = 0,8520). CONCLUSIONES:con las limitaciones propias del estudio, la entrega de contenido teórico más el entrenamiento visual mediante el uso de programa computacional, no es efectivo en mejorar, a corto plazo, la discriminación visual de luminosidad de color dentario en los sujetos en estudio

This article examines, without presuming to exhaust all of its richness, Pope Francis's encyclical Lumen fidei (2013). It first presents a series of general features, contextualized as to both time and content. It then analyzes those dimensions of faith which, in the author's opinion, are highlighted in the document: luminosity, acceptance of God's gifts, gratuity, rationality, ecclesiality, wholeness and, above all, its Christic-Trinitarian nature and relationship to the ultimate vocation of the human person. It concludes by presenting the implications of the light of faith for social life contained in Lumen fidei. [ABSTRACT FROM AUTHOR]

Potassium is a macronutrient that can improve the growth of crops. A randomized complete block design was used to evaluate the influence of four planting densities (50,000, 41,667, 33,333, 31,250 plants ha-1) and three potassium levels (300, 250, 200 kg of K2O ha-1) on leaf area (AF), leaf area index (LAI), crop growth index (CCI) and harvest index (CI) in potato Solanum tuberosum Phureja var. Criolla Guaneña grown in an area of Botana, Altiplano de Pasto, Nariño, Colombia. All evaluations were measured every 20 days until 120 days after sowing (das), except for the IC at the end of the cycle. Analysis of variance, comparison of Tukey means (P<0.05) and regression among the evaluated variables was performed. The physiological variables presented a significant adjustment to the polynomial models of third degree, quadratic and Hoerl, with coefficients of determination higher than 0.6, indicating that with 31,250 plants ha-1 and 250 kg K2O ha-1 increments were achieved in AF of 6000 cm2 and with 200 kg K2O ha-1 in IAF and ICC of 2.0 and 40 g m2 day-1 between 60 to 80 and 80 to 100 das, respectively; However, with 33,333 plants ha-1 and 250 kg K2O ha-1 the IC (0.70) was increased (P<0.05). Although the regressions showed a tendency to increase the LAI and ICC with the production management practices carried out by the farmers (41,667 plants ha-1 and 250 kg K2O ha-1) between 60 to 80 das, it is not recommended since a lower IC (0.60) was obtained at the end of the cycle. [ABSTRACT FROM AUTHOR]

El presente estudio tuvo como objetivo realizar un comparativo de diferentes frecuencias de corte en pasto guinea mombaza (Megathyrsus maximus), bajo sol y sombra natural influenciada por el dosel del árbol de campano (Pithecellobium saman), en condiciones de la Subregión Sabanas de Sucre. Este estudio se llevó a cabo en la granja Los Pericos de la Universidad de Sucre. La siembra del pasto se realizó con semillas de guinea mombaza certificadas, la cual fue trasplantada en suelo un mes después. Los factores analizados correspondieron a tres frecuencias de corte (25 días, 35 días y 45 días) a única altura de 30 cm y dos condiciones (luminosidad y sombreado). Los datos fueron analizados de acuerdo con un diseño de bloque completamente al azar en arreglo de parcelas dividas. La luminosidad tuvo influencia significativa sobre la variable altura de planta, número de macollas por planta, número de tallos verdes/planta, perímetro de la planta, diámetro de la planta, producción de fitomasa verde (Aforo). La materia seca influenció el índice de área foliar y al número de tallos secos por planta con respecto a la variables largo de la hoja, ancho de la hoja, y número de hojas por planta, quienes no mostraron diferencia significativa. Los resultados obtenidos en el presente estudio permiten concluir que la especie de pasto Megathyrsus maximus cv. mombaza mostró una variabilidad morfológica que permite su adaptación a las condiciones de luz plena y sombra natural.

La composición biótica de muchos ecosistemas está haciendo alterada rápidamente, por lo que hay una necesidad creciente de entender los procesos ecológicos y mantener su biodiversidad. Se midió la densidad del estrato herbáceo de 30 cuadrículas (50 cm2) establecidas en tres transeptos (25m x 2m), en la Reserva Biológica Alberto Manuel Brenes, San Ramón, Costa Rica. Encontramos que los factores significativos en la densidad herbácea son el pH y la cantidad de hojarasca.

Obtener estándares del color del fruto de café durante su desarrollo y maduración es necesario para diferentes procesos relacionados con la cosecha y poscosecha de este producto. Las coordenadas L*, a*, b*, C* y h* en la representación de color CIELab y la reflectancia en el espectro visible (400-700 nm) fueron medidas sobre tres diferentes puntos de la epidermis del fruto de Coffea arabica, var. Colombia. La medición se realizó cada siete días, desde 182 hasta 238 días después de la antesis (DDA), utilizando un espectrofotómetro de esfera, con el objetivo de determinar cuantitativamente el color del fruto en diferentes estados de desarrollo. Los resultados obtenidos indican que los frutos de diferentes días de maduración presentan diferencias de color definidas por la luminosidad, las coordenadas cromáticas y la cantidad de luz reflejada por la superficie del epicarpio, dependiendo de la región del espectro visible analizada. A través de las coordenadas cromáticas a* y h* y de varias longitudes de onda luminosa reflejadas se pueden diferenciar frutos de café de 31, 32, 33 y 34 semanas de desarrollo. El croma b* no permite diferenciar los frutos pintones de los maduros. La saturación C* puede discriminar algunos estados de desarrollo pero no permite establecer diferencias entre los estados inmaduros. Las longitudes de onda 520, 570 y 580 nm permiten discriminar significativamente nueve estados diferentes de desarrollo del fruto. El conocimiento de la colorimetría de los frutos de café puede ser usado para el diseño de sistemas de recolección y clasificación poscosecha, y para la adecuada discriminación entre diferentes estados de desarrollo del fruto, los cuales están relacionados con la calidad de la bebida y con la productividad.Obtain coffee fruit color standards during its development and maturation for different processes related to the harvest and postharvest from this product is necessary. The Coordinates L*, a*, b*, C* and h* in the CIELab color representation and visible spectrum reflectance (400-700 nm) were measured on three different points of the epicarp of coffee fruits (Coffea arabica var. Colombia). The readings were taken every seven days since 182 to 238 days after anthesis (DAA), using a sphere spectrophotometer, with the objective of determining the fruit color for different development stages. The results indicate that fruits of different days of growth display color differences defined by luminosity, chromatic coordinates and the amount of light reflected by the epicarp according to the analyzed region of the visible spectrum . Through the chromatic coordinates a* and h* and from several reflected luminous wavelengths can be differentiated fruits of 31, 32, 33 and 34 weeks of development. The chroma b* doesn't allow to differentiate undermature and mature fruits. The saturation C* can discriminate some stages of development but it doesn't allow to establish differences among immature stages. The wavelengths of 520, 570 and 580 nm allow significantly discriminations of nine different stages of the fruit development. The coffee colorimetry knowledge may be used for design of harvesting and post-harvesting sorting systems, and for discrimination among different stages of the fruit development, which are related to the quality of coffee beverage and with productivity.

Es este artículo se presenta la implementación de un semáforo preventivo de dos caras con leds de alta luiniscencia color amarillo, el cual se instala en onas escolares como una alternativa para disminuir la accidentalidad que se presenta en éstas, dado que los últimos reportes de accidentalidad de la Secretaria de Tránsito y Transporte del año 2006 muestran que un 35% de los accidentes ocurren en las afueras de los colegios. El sistema tiene adaptado en su interior una fuente switchada en modo Step-down (reductor); además un subsistema de control que trabaja de tal forma que hace que el semáforo funcione con 60 destellos por minuto alternados para las dos caras. Este semáforo ofrece 880.35 lumens más de luminosidad y un ahorro de 83,45% energía en comparación con el semáforo convencional de bombillo incandescente; logrando así que incursionemos en el área de la optoelectrónica para obtener nuevas aplicaciones dentro del sector productivo.

Introduction. Vitamin C is known for its antioxidant properties and the surface color is an important sensory attribute that affects their purchase by the final consumer. Objective. To determine the effect of thermal treatments on the concentration of vitamin C and the surface color in guava (Psidium guajava), mango (Mangifera indica) and tree tomatoes (Solanum Betaceum Cav). Materials and methods. 120 g of samples in triplicate and homogeneously cut, underwent baking treatments with water (92 ° C for 10 minutes), saturated steam (92 ° C for 10 minutes), microwave (760 W for two minutes) and oven (250 ° C for 10 minutes). Once the heat treatment was completed, the samples were cooled rapidly and the physicochemical properties of pH, acidity, soluble solids, vitamin C concentration and CIELab colorimetric coordinates were determined. Results. After the thermal treatments were performed, the oven heat method registered the largest vitamin C reduction in the guavas, while the cooking with steam and microwave did not affect the original concentration of this micronutrient. On the other hand, the heat treatments did not affect the superficial color of the mangos. In guavas the value of L*, was significantly reduced and in tree tomatoes all of the color variables were significantly affected. Conclusion. The method microwave cooking was the treatment less affected the final concentration of vitamin. [ABSTRACT FROM AUTHOR]

After the long shut-down, the LHC Run2 has started with new running conditions with respect to Run1: in particular the centre of mass energy has reached 13 TeV and the bunch-spacing is now 25 ns. In order to cope with these changes, the ATLAS luminosity monitor LUCID and its electronics have been completely rebuilt. This note describes the new detector and electronics, the new luminosity algorithms and the new calibration systems, with a brief review of the first results about the stability of the measurement and evaluation of systematic uncertainties for the 2015 data. [ABSTRACT FROM AUTHOR]

Copyright of Stylos is the property of Pontificia Universidad Catolica Argentina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Facultad de Odontología Universidad de Antioquia is the property of Universidad de Antioquia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Investigaciones anteriores demuestran la actividad antioxidante de los aceites de Mauritua flexuosa (Morete), Plukenetia volubilis (Sacha inchi) y Oenocarpus bataua (Ungurahua), se realizaron formulaciones de cremas de aplicación cosmética y emulsiones básicas, evitando que el uso de demasiados ingredientes puedan interferir en lo que se consideran como “activos” dentro de la formulación cosmética (aceites con potencial antioxidante). Las muestras fueron evaluadas en un estudio in vivo no invasivo, utilizando una muestra de 30 mujeres que presentaban cierto grado de fotoenvejecimiento. Se realizó una evaluación clínica dermatológica y una evaluación instrumental utilizando el Cutometer MPA580, equipo que permite visualizar las modificaciones en la elasticidad y firmeza cutánea. La evaluación se la hizo al inicio y luego de cuatro semanas de utilizar el producto y los datos fueron sometidos al análisis de varianza. Los resultados del estudio demuestran que a los 28 días de tratamiento, la evaluación clínica las cremas muestran una mejorara significativa en la luminosidad y suavidad de la piel, y la evaluación instrumental indica que se logró una mejoría en la firmeza y elasticidad de la piel.

Copyright of BIOAGRO is the property of Revista BIOAGRO and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

14 spectra of near galaxies of a group of 99 have been chosen provided by Daniela Calzetti, Anne L. Kinney, Thaisa Storchi-Bergmann of the Space Telescope Science Institute. With the 14 spectra already reduced and extracted it has been come to identify the lines Hα, Hβ, OIII, NII, and to determine the landslide to red of each spectra and its respective correction by Redshift. The flows corresponding to each line of emission are determined. And later computers on line of the Extragalactic Data Base of the NASA are used to obtain a set of parameters astrophysicists who allow to determine the luminosity of the Hα line. The results are discussed in a conceptual context derived from recent extragalactic observations. [ABSTRACT FROM AUTHOR]