Liderazgo directivo y clima organizacional de la institución educativa San Andrés durante la pandemia, Cusco, 2020

El presente trabajo de investigación, tuvo como objetivo determinar la relación entre el liderazgo directivo con el clima organizacional de la institución educativa San Andrés durante la pandemia, Cusco, 2020. El presente trabajo, corresponde a una investigación básica, de enfoque cuantitativo, de alcance descriptivo correlacional, diseño no experimental de corte transversal, en una población y muestra de 35 docentes seleccionados de manera no probabilística e intencionada. Para lo cual se aplicó un instrumento denominado cuestionario de liderazgo en directivo, encuesta de escala valorativa de tipo Likert con 32 ítems, sobre las percepciones de liderazgo directivo, y otro de 49 ítems de escala valorativa de tipo Likert, sobre clima organizacional. Para el procesamiento y análisis de los datos obtenidos se utilizó el software SPSS. De acuerdo a los resultados, se concluyó que existe relación moderada, entre las variables liderazgo directivo y clima organizacional, y que el nivel, en promedio, de ambas variables, es regular, y existe relación entre gran parte de las dimensiones de las variables estudiadas

PROPAGACIÓN in vitro DE QUISHUAR (Buddleja incana Ruíz & Pav)

Quishuar es una especie forestal apreciada por sus usos. La explotación intensiva y la oferta insatisfecha de plantas han sido limitantes para cumplir con programas de reforestación. La micropropagación es una técnica que ayudaría a erradicar este problema ya que el propósito es producir mayor cantidad de plantas en menor tiempo. El objetivo de esta investigación fue desarrollar protocolos para la desinfección, establecimiento y multiplicación in vitro, para el efecto se realizaron ensayos partiendo de semillas y brotes de plantas. La primera fase se realizó con semillas, utilizando kilol y benomil, junto con NaOCl al 3 % (10 min). Los resultados indican que el porcentaje de germinación fue de 100 % en MS (Murashige y Skoog medium) y el porcentaje de contaminación y oxidación de 0 %. Por otro lado, los brotes sometidos a fungicidas con adición de antioxidantes y NaOCl al 1 % (10 min) no presentaron contaminación ni oxidación. El porcentaje de brotación fue de 100 % en WPM (Woody Plant Medium). En la segunda fase en medio MS sin adición de hormonas se observó una mayor longitud de brote (1.95 cm), número de nudos (1.94 nudos) e índice de multiplicación (2.47). Basándose en los resultados, se sugiere que los protocolos son efectivos para la propagación in vitro.// Quishuar is a forest species which is well known for its uses. Intensive farming and unsatisfied plant supply have been limited to meet reforestation programs. Micropropagation is a technique that would help eradicate this problem as the purpose is to produce more plants in less time. The objective of this research was to develop protocols for disinfection, establishment, and multiplication in vitro; for this reason, tests from seeds and plants sprouts were carried out; the first phase with seeds, using kilol and benomil, together with NaOCl at 3 % (10 min). The results indicate that the germination percentage was 100 % in MS (Murashige y Skoog medium) and the contamination, oxidation percentage was 0 %. On the other hand, plants sprouts exposed to fungicides, antioxidants and NaOCl at 1 % (10 min), did not have contamination or oxidation. The sprouting percentage was 100 % in WPM (Woody Plant Medium). In the second phase in MS medium without the addition of hormones, plant sprouts (1.95 cm), knots number (1.94 knots) and multiplication rate (2.67) were observed. Based on the results, it is suggested that protocols are effective for in vitro propagation

Bio - concreto con la bacteria Bacillus subtilis para el diseño estructural de vivienda, Comas, 2021

El presente trabajo de investigación tuvo como objetivo general el determinar de qué manera el Bioconcreto con la bacteria Bacillus Subtilis, influye para el diseño estructural de vivienda Comas, 2021.La investigación es de tipo aplicada con enfoque cuantitativo, como estudios básicos se realizó el estudios básicos como la topografía del terreno y el perfil estratigráfico (calicata) para determinar las características del terreno, posteriormente se realizaron el diseño de mezcla en la cual se agregó al agente biológico para el diseño del bioconcreto al 4% , 8% y 12%, en edades de 7, 14 y 28 días para poder determinar la resistencia a la tracción ,compresión y flexión en vigas, ya con los datos recopilados realizamos el análisis sísmico y diseño estructural gracias al programa ETABS 2017, a lo cual determinamos que el bioconcreto puede emplearse en viviendas a pesar que por el paso del tiempo la estructura pueda sufrir fisuras o grietas se reparara de forma natural con la cual la estructura estaría protegida

Serotypes, virulence genes profiles and antimicrobial resistance patterns of Escherichia coli recovered from feces of healthy lambs in Mexico

Articulo que habla de la resistencia a los antibióticos en corderosHealthy lambs are one of the major reservoirs of Shiga toxin-producing Escherichia coli (STEC) and it is known as the cause of foodborne diseases (FBD). The work objective is to characterize (STEC) isolates obtained from rectal swabs of healthy lambs herds, a total of 183 samples were obtained from sheep production units of the State of Mexico. E. coli isolates were confirmed through the amplification of the uid A gene. antimicrobial sensitivity pattern was determined through Kirby-Bauer (CLSI, 2012) test and the presence stx1, stx2 and eae genes from isolates by multiplex PCR. Serotyping was performed using specific anti-O and anti-H sera (SERUNAM, Mexico) for 185 Somatic and 56 flagellar antigens. 126 isolates biochemically and molecularly identified as E. coli were obtained, of which 80 did not express any virulence factor and 46 expressed at least some (STEC) virulence factor. The highest percentage of E. coli resistance was for tetracycline 48.7% (39/80), followed by nalidixic acid 13.7% (11/80), gentamicin 6.2% (5/80) and Ciprofloxacin 3.7% (3/80). Resistance to amikacin, cefotaxime and ceftazidime were not detected. A frequency of 46 STEC isolates (36.2%) were obtained, of which 28/46 (22.0%) expressed stx1, stx2 3/46 (6.5%), stx1, stx2 13/46 (10.2%) and eae 2/46 (1.6%). Thirty different serotypes were obtained. The three serotypes with the highest number of isolates (four each) were: O76:H19, O118:H27 and O146:H21 which have been identified as a cause of diarrhea in human population. An isolate of serogroup O104 was obtained, with a significant importance for European public health. In virtue of the discovered serotypes and the virulence factors distribution, we can affirm that the obtained isolates from lambs in the State of Mexico are classifiable as atypical STEC of low virulence

COMPARATIVA KINECT VS MYO APLICANDO LA PRUEBA NASA-TLX EN UN ENTORNO DE RVI PARA INSPECCIÓN EN AEROGENERADORES

ResumenEste artículo presenta un estudio comparativo entre dos dispositivos de interacción natural de usuario que son frecuentemente utilizados en sistemas de realidad virtual inmersiva: Kinect y Myo. Cada uno de estos dispositivos es usado en un sistema de realidad virtual inmersivo enfocado a la inspección de aerogeneradores. Se realiza una evaluación de ambos empleando como principal instrumento la prueba NASA-TLX, también llamado índice de carga mental. Los resultados permiten corroborar la potencial aplicación de cualquiera de los dos dispositivos. No obstante, el dispositivo Myo aventaja ligeramente al dispositivo Kinect como el más idóneo.Palabras Claves: Energía eólica, interacción natural de usuario, NASA-TLX, realidad virtual inmersiva.COMPARISON KINECT VS MYO APPLYING THE NASA-TLX TEST IN A RVI ENVIRONMENT FOR INSPECTION IN WIND TURBINESAbstractThis paper presents a comparative study between two natural user interaction devices that are frequently used in immersive virtual reality systems: Kinect and Myo. Each of these devices is used in an immersive virtual reality system focused on the inspection of wind turbines. An evaluation of both using the NASA-TLX test, also called mental load index, is the main instrument. The results allow to corroborate the potential application of either device. However, the Myo device slightly outstrips the Kinect device as the most suitable. Keywords: Immersive virtual reality, NASA-TLX, natural user interaction, wind energy

Case report: First report on human infection by tick-borne Babesia bigemina in the Amazon region of Ecuador.

Babesiosis is a protozoan disease acquired by the bite of different species of ticks. More than 100 Babesia spp. infect wild and domestic animals worldwide, but only a few have been documented to infect humans. Generally, babesiosis is asymptomatic in immunocompetent persons; however, in immunocompromised can be life-threatening. A 13-year-old boy from the Amazon region presented with a 3-month evolution of fever, chills, general malaise, and arthralgia accompanied by anemia and jaundice. In the last 4 years was diagnosed with chronic kidney failure. By nested-PCR using 18S RNA ribosomal gene as target and DNA sequencing, the phylogenetic analysis showed Babesia bigemina as the causative agent in the blood. Treatment with oral quinine plus clindamycin for six continuous weeks was effective with no relapse occurring during 12 months of follow-up. This is the second human case in Ecuador but the first caused by the zoonotic B. bigemina which confirms the existence of active transmission that should alert public health decision-making authorities on the emergence of this zoonosis and the need for research to determine strategies to reduce tick exposure

Critical Nitrogen and Nutritive Index in Cultivars of Cenchrus purpureus (Schumach) Morrone

Objective: to determine and compare the parameters of the nitrogen curve and the nutritive nitrogen index of cultivars of C. purpureus with and without nitrogen fertilization. Design / methodology / approach: Five cultivars of C. purpureus were evaluated, with or without fertilization, the dose was 141-43-20. The grass was harvested every 21 days with production of dry matter (DM) and nitrogen (N). Growth rates and Critical Nitrogen (Nc) were obtained. The negative power equation was used with its parameters Nc and the Nitrogen Decrease Coefficient (Cd). The Nutritive Nitrogen Index (INN) was obtained with the Nc parameter of each curve, divided by the N content of the cultivar in each sampling. The data were analyzed with a completely randomized design in a factorial arrangement of 5 (cultivars) and 2 (with or without fertilization). Results: The results of the cultivars show a Nc of 2.6 and a Cd of 0.65 fertilized and 1.14 of Nc and 0.68 of Cd without fertilization, in turn all of them supplemented the amount of N for their soil growth. The INN for the fertilized cultivars was 0.8 with classification of excess and sufficient for the first 56 days. Limitations of the study / implications: The variables to determine the availability of water and the balance of N, soil-plant, would further expand the knowledge of these tools. Findings / conclusions: the parameters obtained such as Nc and INN help us to determine the nutritional status of forages.Objective: To determine and compare the parameters of the nitrogen curve and the nutritive nitrogen index of cultivars of Cenchrus purpureus with and without nitrogenous fertilization.Design/Methodology/Approach: Five cultivars of C. purpureus with or without fertilization were evaluated, and the dose was 141N-43P-20K. The grass was harvested every 21 d with production of dry matter (DM) and nitrogen (N). Growth rates and Critical Nitrogen (Nc) were obtained. The negative power equation with its parameters Nc and the Nitrogen Decrease Coefficient (Cd) were used. The Nutritive Nitrogen Index (NNI) was obtained with the Nc parameter of each curve, divided by the N content of the cultivar in each sampling. The data were analyzed with a completely randomized design in a factorial arrangement of five (cultivars) and two levels of fertilization. Results: Nc of 2.6 and a Cd of 0.65 fertilized, and 1.14 of Nc and 0.68 of Cd without fertilization, and in turn all of them supplemented the amount of N for their growth from soil. The NNI was 0.8 for the fertilized cultivars, with classification of excess and sufficient for the first 56 d. Study Limitations/Implications: Variables to determine the availability of water and the balance of soil-plant N could further expand the knowledge of these tools. Findings/Conclusions: Parameters obtained such as Nc and NNI help to determine nutritional status of the fodders

Case report: First report on human infection by tick-borne Babesia bigemina in the Amazon region of Ecuador

Babesiosis is a protozoan disease acquired by the bite of different species of ticks. More than 100 Babesia spp. infect wild and domestic animals worldwide, but only a few have been documented to infect humans. Generally, babesiosis is asymptomatic in immunocompetent persons; however, in immunocompromised can be life-threatening. A 13-year-old boy from the Amazon region presented with a 3-month evolution of fever, chills, general malaise, and arthralgia accompanied by anemia and jaundice. In the last 4 years was diagnosed with chronic kidney failure. By nested-PCR using 18S RNA ribosomal gene as target and DNA sequencing, the phylogenetic analysis showed Babesia bigemina as the causative agent in the blood. Treatment with oral quinine plus clindamycin for six continuous weeks was effective with no relapse occurring during 12 months of follow-up. This is the second human case in Ecuador but the first caused by the zoonotic B. bigemina which confirms the existence of active transmission that should alert public health decision-making authorities on the emergence of this zoonosis and the need for research to determine strategies to reduce tick exposure

Emociones políticas y virtudes epidémicas en el siglo XVIII

El proyecto se propone abrir nuevas vías en la enseñanza de las Humanidades en la UCM mediante la práctica de una historia de las ideas del siglo XVIII que atiende a los condicionantes materiales de la cultura y a la valoración de las emociones como índices de construcción de imágenes de lo privado y lo público. El proyecto pretende, por un lado, explorar los mecanismos materiales de producción de ideas y creencias compartidas por la sociedad del siglo XVIII, teniendo en cuenta los diferentes contextos de la Ilustración Francesa, Alemana, Judía y Escocesa, con especial atención a la formación de metáforas políticas y a las emociones estéticamente más aceptadas y difundidas en la época analizada. La otra dimensión estudiada por el proyecto se refiere a los procesos de configuración de lo público y la crítica intelectual del poder, tomando como instrumento de análisis la comunicación de ideas materializada en la correspondencia, en la prensa, en los libros y en el proyecto de la Enciclopedia. Este programa de trabajo tendrá como principal destinatario el alumnado de Grado, Máster y Doctorado de la UCM, al que se invitará a las sesiones de trabajo del equipo, especialmente al matriculado en las asignaturas impartidas durante el curso 2016/17 por la IP. El proyecto reúne a destacados especialistas de la UCM y de otras universidades madrileñas y españolas, además de contar entre sus miembros con estudiantes de doctorado, que propiciarán la difusión de las actividades entre los estudiantes UCM, y con personal de administración y servicios, a los que se asignarán tareas relacionadas con la difusión y transferencia de los resultados del proyecto, a la sociedad, a la comunidad universitaria UCM y a los estudiantes Erasmus que reciba en el curso 2016/17 la Facultad de Filosofía de la UCM