Aim Positive regional correlations between biodiversity and human population have been detected for several taxonomic groups and geographic regions. Such correlations could have important conservation implications and have been mainly attributed to ecological factors, with little testing for an artefactual explanation: more populated regions may show higher biodiversity because they are more thoroughly surveyed...
Book Description: In this book, the authors present current research in the conservation, species and management of carnivores. Topics discussed include the adaptation, impact and management of the raccoon dog in Europe; human perceptions of cougars in Canada and El Salvador; the impact on wildlife conservation of emerging protozoal tick-borne diseases of canids; mitigating conflict between humans and large car...
The objective of this experiment was to study the effects of different levels of supplementation on the performance, intake, digestibility, pH and rumen ammonia concentration in growing bulls grazing Brachiaria decumbens Stapf. pasture, during the dry-rainy transition season. For evaluation of performance, intake and digestibility, it was used 25 non-castrated steers at 11 months of age and initial average body...
The aim of this work was to demonstrate in commercial pig farms focused in the lactation and gestation production stages, the importance to adopt good management practices for water use on the value of slurry as fertilizer. It was performed during 18 month a field study, involved four farrow-to-finishing units. During this period its was evaluated the water consumption and slurry production associated to the so...
RAMIRAN International Conference ; The purpose of this work was to demonstrate in a commercial pig farm with a biogas plant and in real conditions, the possibilities to co-digest WSO and PS at farm level. Anaerobic digestion is one of the most adequate technologies to manage this type of industrial organic waste streams (Chowdhury et al., 2009), and the decentralized operations of organic waste management for ...
The cytotoxic activity of amino (3a-e), aza-1-antraquinone (4a-e) lapachol derivatives against Ehrlich carcinoma and human K562 leukemia cells was investigated. Cell viability was determined using MTT assay, after 48 (Ehrlich) or 96 h (K562) of culture, and vincristine (for K562 leukemia) and quercetin (for Ehrlich carcinoma) were used as positive controls. The results showed dose-dependent growth-inhibiting ac...
No abstract available. ; http://dx.doi.org/10.1007/s00128-005-0782-0
Resumen OBJETIVOS: Algunos estudios han demostrado que la duración de los bloqueos nerviosos realizados con anestésicos locales puede ser prolongada con clonidina. En este estudio evaluamos la duración y la calidad de la analgesia proporcionada por el bloqueo del plexo braquial por vía interescalénica para cirugía del hombro, comparando la ropivacaína 0,5% con la ropivacaína 0,5% asociada a clonidina. PACIENTES...
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