Teoría de sistemas, sociedad y educación

This documental research has as a purpose critical to think over on the General Theory of Systems like a fundamental hinge to work participatively in the current scientific, technological and educational day-to-day. To know this Theory has been from very remote times as an essential resource for the technological teaching and it gets constituted like fundamental concept for the understanding of human complexity, by virtue of could have complemented the quantum method with the operational possibility to incorporate attributes, end enclosure filing in the production of knowledge. At the present time the main object of study of the GTS is the management of the processes in social environments; hence its application in educational contexts, because make possible the efficient conduction of these, being all pertinent over the self-regulating concept, autosustained and autotransforming of autopoiétics systems developed by educational communities for this consequent improvement of the service, the steps and the autonomy.En el presente artículo refiere una investigación documental que tiene como propósito reflexionar críticamente sobre la Teoría General de Sistemas (TGS) como eje fundamental para accionar participativamente en la cotidianidad científica, tecnológica y educativa actual. Conocer  esta Teoría ha constituido desde tiempos muy remotos un recurso esencial para la alfabetización tecnológica y se instituye como concepto fundamental para la comprensión de la complejidad humana, en virtud de poder complementar el método cuántico con la posibilidad operacional de incorporar cualidades e incluso sentimientos en la producción del conocimiento. En la actualidad el principal objeto de estudio de la TGS es la gerencia de procesos en ámbitos sociales; por ello su conveniente aplicación en los contextos educativos, por cuanto viabiliza la conducción eficiente de éstos, siendo pertinente sobre todo el concepto autorregulador, autosustentador y autotransformador de los sistemas autopoiéticos desarrollados por las comunidades educativas para su consecuente mejora del servicio, la gestión y la autonomía

TRY plant trait database – enhanced coverage and open access

Plant traits - the morphological, anatomical, physiological, biochemical and phenological characteristics of plants - determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait‐based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits - almost complete coverage for ‘plant growth form’. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives

Sea anemones (Cnidaria: Actiniaria, Corallimorpharia, Ceriantharia, Zoanthidea) from marine shallow-water environments in Venezuela: new records and an updated inventory

Background This study compiles the diversity of sea anemones in different shallow habitats (i.e. rocky shores, coral reefs, mangroves and sandy bottoms) in several locations of Venezuela, including the most important marine reserves of Venezuela: Morrocoy National Park, Mochima National Park, Archipiélago de Los Roques National Park, Laguna de La Restinga National Park, Isla de Cubagua, and Chichiriviche de la Costa. Results Twenty-six species of sea anemones sensu lato were documented, from which only two actiniarian species are newly recorded in Venezuela. In addition, specimens of the scientific collection of the Museo Oceanológico Hermano Benigno Román, of Isla de Margarita, Venezuela, were examined and its taxonomic status updated. Conclusions The diversity of sea anemones in Venezuela is updated to 44 species. An illustrated guide of living specimens and short descriptions of the external anatomy of the specimens is included to facilitate sea anemone species identification in the field and to provide a base line for ecological studies that require accurate identification to species level

Extratos de hipófise de frango e coelho na indução reprodutiva da carpa comum (Cyprinus carpio) - DOI: 10.4025/actascianimsci.v25i1.2109

Fifty-three Cyprinus carpio specimen were induced with three gonadal inducers: broiler chicken (BCPE), rabbit (RPE) and carp pituitary extract (CPE), as control. The average semen volume, spermatic concentration, total number of spermatozoa released in semen were higher in the males treated with BCPE and CPE (p 0.05) for progressive motility, spermatic vigor and hatching rate as result of different hormones used in males. The hormones BCPE and CPE (p 0,05), porém, para a motilidade progressiva, vigor espermático e a taxa de eclosão em função dos diferentes hormônios utilizados nos machos. Em fêmeas, as desovas, a unidade térmica acumulada, número de ovócitos/g de ovócitos liberados e a taxa de eclosão de acordo com hormônio utilizado na fêmea apresentaram melhor desempenho ao se utilizar EHF e EHC (p < 0,05), comparado com EHCo. De acordo com os resultados encontrados, sugere-se a utilização do EHF para induzir machos e novas pesquisas em relação às fêmeas. O EHCo não promoveu estimulação satisfatória em machos e fêmeas

Sea anemones (Cnidaria: Actiniaria, Corallimorpharia, Ceriantharia, Zoanthidea) from marine shallow-water environments in Venezuela: new records and an updated inventory

Background This study compiles the diversity of sea anemones in different shallow habitats (i.e. rocky shores, coral reefs, mangroves and sandy bottoms) in several locations of Venezuela, including the most important marine reserves of Venezuela: Morrocoy National Park, Mochima National Park, Archipiélago de Los Roques National Park, Laguna de La Restinga National Park, Isla de Cubagua, and Chichiriviche de la Costa. Results Twenty-six species of sea anemones sensu lato were documented, from which only two actiniarian species are newly recorded in Venezuela. In addition, specimens of the scientific collection of the Museo Oceanológico Hermano Benigno Román, of Isla de Margarita, Venezuela, were examined and its taxonomic status updated. Conclusions The diversity of sea anemones in Venezuela is updated to 44 species. An illustrated guide of living specimens and short descriptions of the external anatomy of the specimens is included to facilitate sea anemone species identification in the field and to provide a base line for ecological studies that require accurate identification to species level

TRY plant trait database - enhanced coverage and open access

10.1111/gcb.14904GLOBAL CHANGE BIOLOGY261119-18