Efecto del ejercicio y la actividad física sobre las funciones ejecutivas en niños y en jóvenes. Una revisión sistemática

This qualitative systematic review tries to advance knowledge about the effect of physical activity on executive functions, paying special attention to healthy children, teenagers and youngsters.  Several articles have been identified, categorized and analyzed in electronic databases such as ISI Web of Knowledge, SCOPUS, PubMed, SPORTDiscus, PsyINFO, ERIC, Google Scholar and Dialnet. According to the inclusion/exclusion criteria, following the PRISMA statement to record and categorize the results and throughout the quality assessment tool "The Effective Public Health Practice Project”, 44 pieces of research, structured in acute and chronic episodes of physical activity under two approaches: qualitative and quantitative, were chosen. The results show a higher number of experiments with quantitative acute episodes (45,45%) against qualitative ones (18,18%), chronic quantitative (20,45%) and chronic qualitative episodes (15,92%). The analysis of these investigations has allowed identifying the benefits of different types of physical activity studied on executive components.En la presente revisión sistemática cualitativa se intenta avanzar en el conocimiento sobre la incidencia de la actividad física sobre las funciones ejecutivas, focalizada en poblaciones sanas infantiles, adolescentes y jóvenes. Se identificaron, categorizaron y analizaron artículos de bases de datos electrónicas como ISI Web of Knowledge, SCOPUS, PubMed, SPORTDiscus, PsyINFO, ERIC, Google Scholar y Dialnet. Atendiendo a los criterios de inclusión/exclusión, siguiendo la declaración PRISMA para registrar y categorizar los resultados, y mediante la herramienta de evaluación de calidad “The Effective Public Health Practice Project”, se seleccionaron finalmente 44 investigaciones experimentales, estructuradas en episodios agudos y crónicos de actividad física bajo dos enfoques: cuantitativos y cualitativos. Los resultados muestran una superior cantidad de experimentos con episodios agudos cuantitativos (45,45%), frente a los agudos cualitativos (18,18%), crónicos cuantitativos (20,45%) y crónicos cualitativos (15,92%). Los análisis de estas investigaciones han permitido identificar los beneficios de los diferentes tipos de actividad física estudiados sobre los componentes ejecutivos

Population structure and connectivity of the mountainous star coral, Orbicella faveolata , throughout the wider Caribbean region

As coral reefs continue to decline worldwide, it becomes ever more necessary to understand the connectivity between coral populations to develop efficient management strategies facilitating survival and adaptation of coral reefs in the future. Orbicella faveolata is one of the most important reef-building corals in the Caribbean and has recently experienced severe population reductions. Here, we utilize a panel of nine microsatellite loci to evaluate the genetic structure of O. faveolata and to infer connectivity across ten sites spanning the wider Caribbean region. Populations are generally well-mixed throughout the basin (FST = 0.038), although notable patterns of substructure arise at local and regional scales. Eastern and western populations appear segregated with a genetic break around the Mona Passage in the north, as has been shown previously in other species; however, we find evidence for significant connectivity between Curaçao and Mexico, suggesting that the southern margin of this barrier is permeable to dispersal. Our results also identify a strong genetic break within the Mesoamerican Barrier Reef System associated with complex oceanographic patterns that promote larval retention in southern Belize. Additionally, the diverse genetic signature at Flower Garden Banks suggests its possible function as a downstream genetic sink. The findings reported here are relevant to the ongoing conservation efforts for this important and threatened species, and contribute to the growing understanding of large-scale coral reef connectivity throughout the wider Caribbean

Population structure and connectivity of the mountainous star coral, Orbicella faveolata , throughout the wider Caribbean region

As coral reefs continue to decline worldwide, it becomes ever more necessary to understand the connectivity between coral populations to develop efficient management strategies facilitating survival and adaptation of coral reefs in the future. Orbicella faveolata is one of the most important reef-building corals in the Caribbean and has recently experienced severe population reductions. Here, we utilize a panel of nine microsatellite loci to evaluate the genetic structure of O. faveolata and to infer connectivity across ten sites spanning the wider Caribbean region. Populations are generally well-mixed throughout the basin (FST = 0.038), although notable patterns of substructure arise at local and regional scales. Eastern and western populations appear segregated with a genetic break around the Mona Passage in the north, as has been shown previously in other species; however, we find evidence for significant connectivity between Curaçao and Mexico, suggesting that the southern margin of this barrier is permeable to dispersal. Our results also identify a strong genetic break within the Mesoamerican Barrier Reef System associated with complex oceanographic patterns that promote larval retention in southern Belize. Additionally, the diverse genetic signature at Flower Garden Banks suggests its possible function as a downstream genetic sink. The findings reported here are relevant to the ongoing conservation efforts for this important and threatened species, and contribute to the growing understanding of large-scale coral reef connectivity throughout the wider Caribbean

Sarcoma de Kaposi clásico en una adolescente inmunocompetente

El sarcoma de Kaposi (KS) es una enfermedad prevalente en África, se sabe de su existencia hace más de un siglo, por lo que se le ha denominado endémico. Desde la aparición del virus de la inmunodeficiencia humana (VIH) y el síndrome de inmunodeficiencia adquirida (SIDA), se reconoció un tipo de sarcoma de Kaposi, el llamado epidémico más agresivo y diseminado, que recientemente se ha relacionado con el virus del herpes tipo 8. El sarcoma de Kaposi clásico se presenta en pacientes ancianos como manchas vasculares discretamente sobre-elevadas que se localizan predominantemente en los miembros inferiores, rara vez sucede en la infancia. Se presenta un caso de sarcoma de Kaposi clásico en una adolescente mexicana inmunocompetente.   Abstract Kaposi’s sarcoma (KS) is a prevalent disease in Africa and is known of its existence for more than a century, which has been called endemic. Since the emergence of HIV (HIV) and acquired immunodeficiency syndrome (AIDS), a type of Kaposi’s sarcoma more aggressive and spread was recognized recently has been linked to the virus type 8 herpes, he has called classic Kaposi’s sarcoma. It occurs in elderly patients as vascular patches localized predominantly in the lower limbs, rarely seen in childhood. We report a case of classic Kaposi’s sarcoma in an immunocompetent Mexican teenager. &nbsp

INVESTIGATION OF INSTRUMENTING ROBOCASTING PRINTER FOR CERAMIC SLURRIES

Robocasting has multiple steps from ceramic slurry preparation to sintering that can impact the end part quality. In-situ monitoring and process controls can aid in minimizing differences in the quality of printed parts. The study and impact of different parameters during the printing process and a parameter database will improve the quality between green bodies and sintered parts. This paper discusses implementation of a CMOS camera, dynamic pressure sensor, and 2D laser scanner into a custom-built robocasting printer for in process monitoring. Single line beads were printed and analyzed by measuring the dimensions and pressure changes during printing. Results show that the printer with sensors detected the location of possible defects and changes in printed samples but further investigation is needed to filter noise and collect conclusive data.Mechanical Engineerin

Sarcoma de Kaposi clásico en una adolescente inmunocompetente

El sarcoma de Kaposi (KS) es una enfermedad prevalente en África, se sabe de su existencia hace más de un siglo, por lo que se le ha denominado endémico. Desde la aparición del virus de la inmunodeficiencia humana (VIH) y el síndrome de inmunodeficiencia adquirida (SIDA), se reconoció un tipo de sarcoma de Kaposi, el llamado epidémico más agresivo y diseminado, que recientemente se ha relacionado con el virus del herpes tipo 8. El sarcoma de Kaposi clásico se presenta en pacientes ancianos como manchas vasculares discretamente sobre-elevadas que se localizan predominantemente en los miembros inferiores, rara vez sucede en la infancia. Se presenta un caso de sarcoma de Kaposi clásico en una adolescente mexicana inmunocompetente.   Abstract Kaposi’s sarcoma (KS) is a prevalent disease in Africa and is known of its existence for more than a century, which has been called endemic. Since the emergence of HIV (HIV) and acquired immunodeficiency syndrome (AIDS), a type of Kaposi’s sarcoma more aggressive and spread was recognized recently has been linked to the virus type 8 herpes, he has called classic Kaposi’s sarcoma. It occurs in elderly patients as vascular patches localized predominantly in the lower limbs, rarely seen in childhood. We report a case of classic Kaposi’s sarcoma in an immunocompetent Mexican teenager. &nbsp

The Relationship Between Shallap Glacier - Cordillera Blanca and King George Island - Antarctic Peninsula

The main goal of this study is to determine the relationship between Shallap Glacier (SG) — Cordillera Blanca and King George Island (KGI) glaciers — Antarctic Peninsula and describe their features. Multi-temporal analysis with satellite imagery from 1989 to 2019 was made. The SG and KGI glaciers seem to be quite different. Nevertheless, preliminary results, in this research, show that approximately 74% of KGI glaciers have reduced their areas (below 20%) as same as the SG in the last 30 years. Indeed, SG (6 Km2) represents only 0.6% of the KGI glaciers (993.6 Km2), but each zone's different own factors seem to be shrinking glacier coverage at about similar proportions

Caracterización varietal del chile habanero (Capsicum chinense Jacq.) var. Rosita

Objective: Characterize the Rosita variety of habanero pepper (Capsicum chinense Jacq.) as a variant landrace of the traditional habanero for conservation and genetic improvement purposes. Design/methodology/approach: Fruits were collected from ten production units in 2015, reproducing and characterizing them. The varietal characterization was carried out ex situ under greenhouse and fertigation conditions based on the IPGRI guide (1995), characterizing the seedling in nursery and the plant to transplant: leaves, stem, flower, fruit and seed. The fertilization was carried out applying every third day a gram of triple fertilizer 19 (N-P-K) dissolved in water, from the appearance of the first true leaves, after the transplant the formula 100-100-100 (N-P-K) was applied by fertigation. With the data obtained and the use of descriptive statistics, averages and standard deviations were obtained for the quantitative characteristics. The qualitative characteristics gave value to a certain characteristic from its highest absolute frequency. Results: The distinguishing characteristics found were: hypocotyl with anthocyanins and pubescence; plant with semi-perennial cycle; habit of prostrate growth; anthocyanins in the knots; height greater than 85 cm; color of greenish yellow corolla; two or more flowers per armpit acampa breadfruit; transverse wrinkling of the fruit and medium-sized rough seed. Limitations on study/implications: The presence of some pests was treated with chemicals for whitefly, such as CalypsoÒ (Thiacloprid), ActaraÒ (Thiamethoxam), EvisectÒ (Tiocyclam hydrogenoxalate), and AplaudÒ (Buprofezin). Findings/conclusions: The distinctive morphological characteristics of habanero pepper Rosita were found in seedlings, flowering plants, fruits and seeds, which differentiate it from traditional habanero peppers.Objetivo: Caracterizar la variedad Rosita de chile habanero (Capsicum chinense Jacq.) como una variante de uso común del habanero tradicional con fines de conservación y mejoramiento genético. Diseño/metodología/aproximación: Fueron recolectados frutos de diez unidades de producción, reproduciéndolas para su caracterización ex situ en condiciones de invernadero y fertirriego con base a la guía del IPGRI (1995), caracterizando la plántula en vivero y la planta al trasplante: hojas, tallo, flor, fruto y semilla. La fertilización de realizó aplicando cada tercer día un gramo de fertilizante triple 19 (N-P-K) disuelto en agua, a partir de la aparición de las primeras hojas verdaderas, después del trasplante se aplicó mediante fertirriego la fórmula 100-100-100 (N-P-K). Con los datos obtenidos y el uso de estadística descriptiva se obtuvieron promedios y desviación estándar para las características cuantitativas. Las características cualitativas dieron valor a una determinada característica a partir de su mayor frecuencia absoluta. Resultados: Las características distintivas fueron: hipocotilo con antocianinas y pubescencia; planta con ciclo semi-perenne; hábito de crecimiento postrado; antocianinas en los nudos; altura mayor de 85 cm; color de la corola amarillo verdosa; dos o más flores por axila fruto acampanulado; arrugamiento trasversal del fruto y semilla rugosa de tamaño medio. Limitaciones del estudio/implicaciones: La presencia de algunas organismos plaga fueron combatidos con CalypsoÒ (Thiacloprid), ActaraÒ (Tiametoxam), EvisectÒ (Tiocyclam hidrogenoxalato), y AplaudÒ (Buprofezin). Hallazgos/conclusiones: Las características morfológicas distintivas del chile habanero Rosita se encontraron en plántula, planta flor, fruto y semilla, que lo diferencian del chile habanero tradicional