Variabilidad espacial de las propiedades físicas de un suelo Fluventic Ustropepts en la cuenca baja del río Las Ceibas - Huila

Se estudió la variabilidad espacial de algunas propiedades físicas del suelo asociadas a cultivos de caña, pasto y moringa en un “Fluventic Ustropepts” de la Cuenca baja del Rio Las Ceibas. Se hizo muestreo con grilla de 50 m x 50 m en 26 puntos para los análisis físicos, 8 pruebas de infiltración en muestreo aleatorio simple y 3 muestras integradas para análisis químicos en un área de 6.5 ha. El estudio consta de 5 etapas: 1) recolección de muestras y análisis de las propiedades físicas y químicas del suelo, 2) análisis estadístico y descriptivo de las variables usando los software Statgraphic Centurión XVIII y Excel 2010, 3) análisis geoestadístico basado en la interpolación por el método Kriging con software GS+10, 4) análisis multivariado de las componentes principales generando un gráfico bidimensional (biplot) con InfoStat y 5) elaboración de mapas de variabilidad espacial de las propiedades físicas del suelo por medio de software Surfer 10 para la implementación del plan de cultivos y los mapas de uso del suelo, por medio de los software ArcGis 10. La infiltración del suelo resultó extremadamente heterogénea con un coeficiente de variación del 74,5% y dependencia moderada con rango de alcance de 610,9 m. Se delimitaron tres sectores para los cultivos mencionados, basados en los análisis del suelo según el uso potencial del suelo

Algunos aspectos de la eficiencia reproductiva correlacionados con el semental equino

La eficiencia reproductiva del criadero es dependiente de la fertilidad de los sementales. Normalmente, se tiende a atribuir a la hembra la responsabilidad de los bajos resultados en la eficiencia reproductiva. Sin embargo, la evaluación del macho algunas veces no se realiza frente a las bajas tasas de concepción. Se debe atribuir mayor valor a las variables relacionadas con el garañón, ya que pueden contribuir en el aumento en las tasas de fertilidad del criadero, en las que se destaca la calidad espermática. Actualmente, además de los análisis clásicos, se emplean exámenes más minuciosos como la identificación de factores de crecimiento locales (IGF-I) en circulación sanguínea, la razón colesterol: fosfolípidos, la integridad de la membrana plasmática del espermatozoide y las moléculas receptoras de la zona pelúcida del oocito. Con esto se busca mayor poder predictivo de la fertilidad del garañó

Marine Biodiversity in the Caribbean: Regional Estimates and Distribution Patterns

This paper provides an analysis of the distribution patterns of marine biodiversity and summarizes the major activities of the Census of Marine Life program in the Caribbean region. The coastal Caribbean region is a large marine ecosystem (LME) characterized by coral reefs, mangroves, and seagrasses, but including other environments, such as sandy beaches and rocky shores. These tropical ecosystems incorporate a high diversity of associated flora and fauna, and the nations that border the Caribbean collectively encompass a major global marine biodiversity hot spot. We analyze the state of knowledge of marine biodiversity based on the geographic distribution of georeferenced species records and regional taxonomic lists. A total of 12,046 marine species are reported in this paper for the Caribbean region. These include representatives from 31 animal phyla, two plant phyla, one group of Chromista, and three groups of Protoctista. Sampling effort has been greatest in shallow, nearshore waters, where there is relatively good coverage of species records; offshore and deep environments have been less studied. Additionally, we found that the currently accepted classification of marine ecoregions of the Caribbean did not apply for the benthic distributions of five relatively well known taxonomic groups. Coastal species richness tends to concentrate along the Antillean arc (Cuba to the southernmost Antilles) and the northern coast of South America (Venezuela – Colombia), while no pattern can be observed in the deep sea with the available data. Several factors make it impossible to determine the extent to which these distribution patterns accurately reflect the true situation for marine biodiversity in general: (1) highly localized concentrations of collecting effort and a lack of collecting in many areas and ecosystems, (2) high variability among collecting methods, (3) limited taxonomic expertise for many groups, and (4) differing levels of activity in the study of different taxa

The psychological science accelerator’s COVID-19 rapid-response dataset

In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures for each experimental study, a general questionnaire examining health prevention behaviors and COVID-19 experience, geographical and cultural context characterization, and demographic information for each participant. Each participant started the study with the same general questions and then was randomized to complete either one longer experiment or two shorter experiments. Data were provided by 73,223 participants with varying completion rates. Participants completed the survey from 111 geopolitical regions in 44 unique languages/dialects. The anonymized dataset described here is provided in both raw and processed formats to facilitate re-use and further analyses. The dataset offers secondary analytic opportunities to explore coping, framing, and self-determination across a diverse, global sample obtained at the onset of the COVID-19 pandemic, which can be merged with other time-sampled or geographic data

A global experiment on motivating social distancing during the COVID-19 pandemic

Finding communication strategies that effectively motivate social distancing continues to be a global public health priority during the COVID-19 pandemic. This cross-country, preregistered experiment (n = 25,718 from 89 countries) tested hypotheses concerning generalizable positive and negative outcomes of social distancing messages that promoted personal agency and reflective choices (i.e., an autonomy-supportive message) or were restrictive and shaming (i.e., a controlling message) compared with no message at all. Results partially supported experimental hypotheses in that the controlling message increased controlled motivation (a poorly internalized form of motivation relying on shame, guilt, and fear of social consequences) relative to no message. On the other hand, the autonomy-supportive message lowered feelings of defiance compared with the controlling message, but the controlling message did not differ from receiving no message at all. Unexpectedly, messages did not influence autonomous motivation (a highly internalized form of motivation relying on one’s core values) or behavioral intentions. Results supported hypothesized associations between people’s existing autonomous and controlled motivations and self-reported behavioral intentions to engage in social distancing. Controlled motivation was associated with more defiance and less long-term behavioral intention to engage in social distancing, whereas autonomous motivation was associated with less defiance and more short- and long-term intentions to social distance. Overall, this work highlights the potential harm of using shaming and pressuring language in public health communication, with implications for the current and future global health challenges

The Psychological Science Accelerator’s COVID-19 rapid-response dataset

In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures for each experimental study, a general questionnaire examining health prevention behaviors and COVID-19 experience, geographical and cultural context characterization, and demographic information for each participant. Each participant started the study with the same general questions and then was randomized to complete either one longer experiment or two shorter experiments. Data were provided by 73,223 participants with varying completion rates. Participants completed the survey from 111 geopolitical regions in 44 unique languages/dialects. The anonymized dataset described here is provided in both raw and processed formats to facilitate re-use and further analyses. The dataset offers secondary analytic opportunities to explore coping, framing, and self-determination across a diverse, global sample obtained at the onset of the COVID-19 pandemic, which can be merged with other time-sampled or geographic data

A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic.

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world

Representaciones sociales sobre la paternidad y la maternidad en cinco ciudades colombianas. Análisis desde la perspectiva de género

IP 1101-10-284-98Incluye bibliografia.v.1 Informe final. -- v.2 Paternidad y maternidad en la ciudadde Medellin: de la certeza del deber a los avatares y la incertidumbre del deseo / Omar Sierra...[et.al].'-- v.3 Representaciones sociales y practicas de la paternidad y la maternidad en Cali / Maria CristinaMaldonado, Amparo Micolta Leon, Martha Dominguez Mejia. -- v.4 Cambios en las representaciones sociales dela paternidad yla maternidad en cinco ciudades colombianas, analisis desde la perspectiva de genero / Doris Lamus Canabate...[et. al]. -- v.5 Cambios en las representaciones sociales sobre paternidad y maternidad encincociudadescolombianas : un analisis desde la perspectiva de genero : Cartagena de Indias.LIBRO(S): Maternidad y paternidad: tradicion y cambio en Bucaramanga / Doris Lamus Canabate, Ximena Useche;Gomez : Bucaramanga - 2002. - 178 p ; 20 cm. - ISBN 958816608X.'- Padres ymadres en cinco ciudades;colombianas: cambios y permanencias / Yolanda Puyana V [et. al]: Bogotá -2003. -- 295 p. ; 24 cm. -- ISBN;8063140