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6 results for “forestales”
Figura 1-2. 1 in Hospederos, infestación y distribución de Coptotermes testaceus (Linnaeus) (Blattodea: Rhinotermitidae) en áreas forestales de Tabasco, México
Figura 1-2. 1.Ubicación de las áreas forestales en el estado de Tabasco, México. 2. Distribución de Coptotermes testaceus en las áreas forestales del estado de Tabasco, México.
Linked collectors and determiners for: Departamento de Investigación y Experiencias Forestales de Valonsadero de la Junta de Castilla y León: JCYL-Fungi.
Natural history specimen data linked to collectors and determiners held within, "Departamento de Investigación y Experiencias Forestales de Valonsadero de la Junta de Castilla y León: JCYL-Fungi". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/95ca5a80-f762-11e1-a439-00145eb45e9a">https://bionomia.net/dataset/95ca5a80-f762-11e1-a439-00145eb45e9a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/95ca5a80-f762-11e1-a439-00145eb45e9a">https://gbif.org/dataset/95ca5a80-f762-11e1-a439-00145eb45e9a</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Obtención de los códigos de barras genéticos de ADN de especies de arácnidos en los ecosistemas forestales de montaña del Ecuador organizados en una plataforma digital a través de una aplicación web para estudios de biodiversidad..
Natural history specimen data linked to collectors and determiners held within, "Obtención de los códigos de barras genéticos de ADN de especies de arácnidos en los ecosistemas forestales de montaña del Ecuador organizados en una plataforma digital a través de una aplicación web para estudios de biodiversidad.". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/39c2d84a-4a44-4b19-afda-34124377957d">https://bionomia.net/dataset/39c2d84a-4a44-4b19-afda-34124377957d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/39c2d84a-4a44-4b19-afda-34124377957d">https://gbif.org/dataset/39c2d84a-4a44-4b19-afda-34124377957d</a>. Formatted as a Frictionless Data package.
Exploring multielement nanogranular coatings to forestall implant-related infections
<p>As we approach the post-antibiotic era, the development of innovative antimicrobial strategies that carry out their action through non-specific mechanisms could limit the onset and spread of numerous drug resistance traits among clinical isolates. In this context, the use of multielement nanogranular NPs conjugated to the surface of implantable biomaterials might represent a strategy to reduce the systemic drawbacks by locally confining the NPs effects against either prokaryotic or eukaryotic cells.</p> <p>In the present study, two new multielement nanogranular coatings composed of different mixtures of Ti/Mg, Ag and Cu were synthesized and tested against pathogens isolated from periprosthetic joint infections to address their potential antimicrobial value in an <em>in vitro</em> experimental setting.</p> <p>Overall, <em>Staphylococcus aureus</em>, <em>Staphylococcus epidermidis</em> and <em>Escherichia coli</em> displayed a significantly decreased adhesion when cultured on Ti-Ag-Cu and Mg-Ag-Cu coatings compared to uncoated controls, regardless of their antibiotic resistance traits. A dissimilar behavior was observed when <em>Pseudomonas aeruginosa</em> was cultured for 30 and 120 minutes upon the surface of Ti-Ag-Cu and Mg-Ag-Cu-coated discs.</p> <p>Biofilm formation was mainly reduced by the active effect of Mg-Ag-Cu compared to Ti-Ag-Cu and, again, coatings had a milder effect on <em>P. aeruginosa</em>, probably due to its exceptional capability of attachment and matrix production. These data were further confirmed by the evaluation of bacterial colonization on nanoparticles-coated discs through confocal microscopy.</p> <p>Finally, to exclude any cytotoxic effects on eukaryotic cells, the biocompatibility of NPs-coated discs was studied. Results demonstrated a viability of 95.8% and 89.4% of cells cultured in the presence of Ti-Ag-Cu and Mg-Ag-Cu discs, respectively, when compared to negative controls.</p> <p>In conclusion, the present study demonstrated the promising anti-adhesive features of both Ti-Ag-Cu and Mg-Ag-Cu coatings, as well as their action in hampering the biofilm formation, highlighting the safe use of the tested multi-element families of nanoparticles as new strategies against bacterial attachment to the surface of biomedical implants.</p>
Heterosis counteracts hybrid breakdown to forestall speciation by parallel natural selection
<p>In contrast to ecological speciation, where reproductive isolation evolves as a consequence of divergent natural selection, speciation by parallel natural selection has been less thoroughly studied. To test whether parallel evolution drives speciation, we leveraged the repeated evolution of benthic and limnetic ecotypes of threespine stickleback fish and estimated fitness for pure crosses and within-ecotype hybrids in semi-natural ponds and in laboratory aquaria. In ponds, we detected hybrid breakdown in both ecotypes but this was counterbalanced by heterosis and the strength of post-zygotic isolation was nil. In aquaria, we detected heterosis only in limnetic crosses and breakdown in neither ecotype, suggesting that hybrid incompatibilities are environment-dependent for both ecotypes and that heterosis is environment-dependent in benthic crosses. Heterosis and breakdown were 3× greater in limnetic crosses than in benthic crosses, contrasting the prediction that the fitness consequences of hybridization should be greater in crosses among more derived ecotypes. Consistent with a primary role for stochastic processes, patterns differed among crosses between populations from different lakes. Yet, we observed qualitatively similar patterns of heterosis and hybrid breakdown in benthic crosses and limnetic crosses when averaging the lake pairs, suggesting that the outcome of hybridization is repeatable in a general sense.</p>
Heterosis counteracts hybrid breakdown to forestall speciation by parallel natural selection
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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