Sistema de agua potable y calidad de servicio del centro poblado de Palpa, distrito de Aucallama, provincia Huaral, año 2022

La investigación fue realizada en el CCPP de Palpa, en el distrito de Aucallama, el cual tiene como finalidad definir la relación el sistema de agua Potable con la calidad de servicio en el CCPP de Palpa, Aucallama, 2022. La metódica empleada tiene un planteamiento cuantitativo, con un diseño no experimental, el nivel de investigación es correlacional, de tipo básica. La población es de 900 viviendas siendo la muestra de 87 viviendas del CCPP de Palpa, Aucallama, 2022. Se verifico que el grado de relación establecido entre las dimensiones se encuentra en un estado moderado, donde los esquemas evidencian que es de forma ascendente y no existe un alejamiento considerable. Para el análisis estadístico se empleó el test de normalidad_Kolmorov-Smirnov. Como conclusión tenemos que el sistema de agua potable (V1) se asocia con la calidad de servicio(V2) del CCPP de Palpa, Aucallama, 2022; debido a que, según los datos recolectados en campo a través de un sondeo que realizamos a los pobladores del CCPP de Palpa. se realizó los cálculos estadísticos en el programa SPSS según nuestras dimensiones, por lo tanto, se concluyó las mejorías que se deben realizar para obtener un sistema de agua potable y calidad de servicio con mayor eficiencia

Variability Modeling of Rainfall, Deforestation, and Incidence of American Tegumentary Leishmaniasis in Orán, Argentina, 1985–2007

American tegumentary leishmaniasis (ATL) is a disease transmitted to humans by the female sandflies of the genus Lutzomyia. Several factors are involved in the disease transmission cycle. In this work only rainfall and deforestation were considered to assess the variability in the incidence of ATL. In order to reach this goal, monthly recorded data of the incidence of ATL in Orán, Salta, Argentina, were used, in the period 1985–2007. The square root of the relative incidence of ATL and the corresponding variance were formulated as time series, and these data were smoothed by moving averages of 12 and 24 months, respectively. The same procedure was applied to the rainfall data. Typical months, which are April, August, and December, were found and allowed us to describe the dynamical behavior of ATL outbreaks. These results were tested at 95% confidence level. We concluded that the variability of rainfall would not be enough to justify the epidemic outbreaks of ATL in the period 1997–2000, but it consistently explains the situation observed in the years 2002 and 2004. Deforestation activities occurred in this region could explain epidemic peaks observed in both years and also during the entire time of observation except in 2005–2007

Quid: observatorio de medios

El informe está estructurado en seis partes. En la primera, “Transparencia y derecho a la información en Jalisco”, se presenta un artículo que sintetiza cómo fue que en diciembre de 2011, el Congreso y el Gobierno del Jalisco se organizaron para aprobar la “Ley de Información Pública de Jalisco y sus Municipios”, como un intercambio de favores entre estos poderes. En la segunda parte, "Medios de comunicación y periodismo en Jalisco", se presentan trabajos sobre los cambios en la prensa local, los medios de comunicación y los juegos panamericanos, las condiciones laborales de los periodistas en Guadalajara, y la prensa roja. En la tercer parte, "Economía política de los medios de comunicación y las industrias culturales en Jalisco" se incluyen trabajos sobre la industria de la música, la propaganda disfrazada de periodismo, y los medios públicos. En la cuarta parte, "Medios de comunicación y telecomunicaciones", se abordan los temas de la lucha por las telecomunicaciones en México, y la televisión abierta como una herramienta política para construir estrategias gubernamentales. En la quinta parte, "Producción de investigación académica del observatorio de medios", se presenta un análisis de contenido de cinco periódicos mexicanos con respecto al tema del medio ambiente. La sexta parte es una semblanza del periodista Víctor Wario Romo.ITESO, A.C

Biorational and conventional insecticides efficacy to control thrips (Frankliniella occidentalis Perg.) on strawberries (Fragaria x ananassa Duch.) at Morelos state, Mexico: Spanish

Strawberry cultivation presents multiple phytosanitary limitations among which the “western flower thrips” stands out. Adults and nymphs of F. occidentalis produce severe damage to flowers and fruits, reducing the yield and quality of the product. In Mexico, thrips control is based on the use of synthetic chemical insecticides. The objective of this research was to evaluate the insecticidal effectiveness of biorational and conventional products as control alternatives and their phytotoxic effects in strawberry cultivation. The study was carried out in strawberry cv. Camino Real in flowering stage - fruiting established in open ground. A completely randomized design with seven treatments and four replications was used. Significant differences between treatments could be identified; Imidacloprid + Lambda Cyhalothrin and Bifenthrin caused the highest mortality of thrips with an efficiency of 92 and 93% respectively. Spinosad obtained good results, ranking as the second best option with 90% control efficiencies; neem extract stood out as an excellent biorational pest management alternative with 77% control efficacy in the last evaluation. No phytotoxic effects were observed from any of the treatments on the crop.Objective: To evaluate the insecticidal effectiveness of biorational and conventional products as alternatives to control thrips and their phytotoxic effects in strawberry cultivation. Design / methodology / approach: The research was carried out in strawberry cv. Camino Real during its flowering stage - fruiting established in open ground; A completely randomized experimental design with seven treatments and four replications was used. The treatments evaluated were: T1: neem oil extract, T2: paraffin oil, T3: garlic extract + hot chili pepper + cinnamon, T4: spinosad, T5: imidacloprid + lambda cyhalothrin, T6: bifenthrin, and T7: control. Applications were made weekly and the mortality evaluation was carried out by counting the number of live thrips per flower. With the obtained data, an analysis of variances and a mean comparison test (Tukey, p ≤ 0.05) were performed. Results: Significant differences between treatments could be identified (p ≤ 0.05); imidacloprid + lambda cyhalothrin and bifenthrin caused the highest mortality of thrips with 92 and 93 % efficacy, respectively. Spinosad obtained good results, ranking as the second-best option with 90 % control efficiencies; neem extract stood out as an excellent biorational pest management alternative with 77 % control efficacy in its last evaluation. No phytotoxic effects were observed from any of the treatments on the crop. Limitations on study / implications: It is important to continue the study in the laboratory to obtain the LD50 and LD90 of the management alternatives, as well as an MRL analysis of the molecules used. Findings / conclusions: The proposed protocol evidenced the efficacy of biorational and ecological thrips control treatments in intensive horticultural systems

MEJORAMIENTO GENÉTICO EN PLANTAS AUTÓGAMAS

El avance de los métodos tradicionales y modernos para el mejoramiento de las plantas autógamas se ha incrementado en las últimas décadas, ambos métodos son las principales herramientas para conseguir incrementar la producción de los cultivos. Entre los métodos tradicionales más usados se tiene a la hibridación que se basa en el cruzamiento de individuos con diferentes genotipos, la selección; entre ellas a la selección masal, la selección por pedigree y el retrocruzamiento. En los métodos modernos tenemos: Selección asistida por marcadores moleculares, que combina muy bien con el mejoramiento tradicional; así también la Inducción de mutaciones cuando la variabilidad genética es baja; el cultivo de tejidos in vitro, la Ingeniería Genética y Mejoramiento de Genes. En el presente trabajo explicamos algunos ejemplos en plantas autógamas como en el caso de Phaseolus vulgaris “frijol” orientándose a mejora en condiciones de sequía principalmente, así como el mejoramiento genético de la Quinua, la cual presenta alogamia frecuente (0,5 a 17%), y por último tenemos el mejoramiento genético en el cultivo de arroz, utilizando marcadores moleculares para etiquetar los genes de interés. En conclusión, los métodos genéticos tradicionales nos dan alternativas sencillas y de bajo costo, aunque toman un mayor tiempo, por lo cual se está orientando a combinar los métodos tradicionales con métodos modernos. Palabras clave: Plantas autógamas, selección, hibridación, retrocruzamiento, mejoramiento genético. Abstract The advance of traditional and modern methods for the improvement of self-pollinated plants has increased in recent decades, both methods are the main tools to achieve increased crop production. Among the most widely used traditional methods, hybridization is based on the crossing of individuals with different genotypes, selection; including mass selection, pedigree selection and backcrossing. In modern methods we have: Selection assisted by molecular markers, which combines very well with traditional breeding; thus also the Induction of mutations when the genetic variability is low; in vitro tissue culture, Genetic Engineering and Gene Improvement. In the present work we explain some examples in autogamous plants such as in the case of Phaseolus vulgaris "bean", mainly oriented towards improvement in drought conditions, as well as the genetic improvement of Quinoa, which frequently presents allogamy (0.5 to 17%), and finally we have genetic improvement in rice cultivation, using molecular markers to label the genes of interest. In conclusion, traditional genetic methods give us simple and low-cost alternatives, although they take a longer time, so it is being oriented to combine traditional methods with modern methods. Keywords: Autogamous plants, selection, hybridization, backcrossing, genetic improvement. * Autor de correspondencia: E mail: [email protected] DOI: http://dx.doi.org/10.17268/rebiol.2021.41.01.1

Adiciones y correcciones a la orquidoflora valenciana

Some data about rare orchid taxa at the Valencian Community (Spain) or expansions of their distribution area to new shires are shown; The confirmed presence of Ophrys × chobautii for the Valencian Community and Neottia nidus-avis in Alicante province must be emphasized

Tuning the electronic properties of Zr UiO-66 through defect-functionalised multivariate modulation.

The multivariate modulation of Metal-Organic Frameworks is presented as a valuable tool to introduce multiple functional units into UiO-66 while increasing its porosity. This manuscript encloses a comprehensive study using p-functionalised benzoate -NO2, -SO3 and -SH modulators, rationalizing the defects introduced and their impact on properties