436 research outputs found
Lusitania
The present study attempts to illustrate the large phytocoenotical diversity of forests, pre-forest, high-scrub and most of the corresponding sub-seral communities of the Lusitania territories and enables the identification of their clumped pattern of occurrence as landscape mosaics. These communities are syntaxonomically included in the Quercetea ilicis, Querco-Fagetea sylvaticae, Salici purpureae-Populetea nigrae, Alnetea glutinosae, Nerio-Tamaricetea, Calluno vulgaris-Ulicetea minoris, Cisto-Lavanduletea stoechadis and Rosmarinetea officinalis vegetation classes and span a large spectrum of environmental variables, being present in a wide range of bioclimatic stages and edaphic conditions. The grasslands, that represent seral stages of the Quercion broteroi and Quercion pyrenaicae and are included in the Stipo giganteae-Agrostietea castellanae class, are also described. In Lusitania, on soils rich in bases, without hydromorphy and salinity, dry grasslands are widespread in the potential areas of Quercus suber, Q. rotundifolia and/or Q. faginea, and are included in the Festuco-Brometea vegetation class; associations of the Arrábida mountain and Algarve are especially rich in endemic species. The ephemeral pioneer communities are dominated by non-nitrophilous, small therophytes included in the Helianthemetea guttati class. Grasslands linked to heavy grazing are also described. In this group we include pastures, with adequate sheep pasture, grazed and manured, dominated by dwarf perennial grasses and other nutritious prostrate chamaephytes and hemicryptophytes, which encompass the associations of the Poetea bulbosae class. Other herbaceous communities, dependent on anthropic influence, are those dense meadows and reed-beds included in the Molinio-Arrhenatheretea class.The tall herbs of nitrified wood fringes and other semi-shaded anthropic biotope communities belong to the Galio-Urticetea class. The herbaceous ruderal vegetation is also described. Lastly, the coastal vegetation of sea cliffs and lithosols, dunes, and estuaries and saltmarshes is referred to, as well as the interior sandy soil or semi-fixed dune grasslands
Nova associacao de charcos temporários mediterrânicos do SW da Península Ibérica: eryngio corniculati-Isoetetum setacei.
New association of Mediterranean Temporary Ponds from the SW of the Iberian Peninsula: Eryngio corniculati-Isoetetum setaceiPalavras-chave. Isoeto-Nanojuncetea, Vegetação anfíbia, Rede Natura 2000, Alentejo.Key words. Isoeto-Nanojuncetea, Amphibious vegetation, Natura 2000 Network, Alentejo
Por um Plano Nacional de Educação (2011-2020) como política de Estado
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Previous issue date: 2011-0
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Effective Detection of Human Leukocyte Antigen Risk Alleles in Celiac Disease Using Tag Single Nucleotide Polymorphisms
Background: The HLA genes, located in the MHC region on chromosome 6p21.3, play an important role in many autoimmune disorders, such as celiac disease (CD), type 1 diabetes (T1D), rheumatoid arthritis, multiple sclerosis, psoriasis and others. Known HLA variants that confer risk to CD, for example, include DQA1*05/DQB1*02 (DQ2.5) and DQA1*03/DQB1*0302 (DQ8). To diagnose the majority of CD patients and to study disease susceptibility and progression, typing these strongly associated HLA risk factors is of utmost importance. However, current genotyping methods for HLA risk factors involve many reactions, and are complicated and expensive. We sought a simple experimental approach using tagging SNPs that predict the CD-associated HLA risk factors. Methodology: Our tagging approach exploits linkage disequilibrium between single nucleotide polymorphism (SNPs) and the CD-associated HLA risk factors DQ2.5 and DQ8 that indicate direct risk, and DQA1*0201/DQB1*0202 (DQ2.2) and DQA1*0505/DQB1*0301 (DQ7) that attribute to the risk of DQ2.5 to CD. To evaluate the predictive power of this approach, we performed an empirical comparison of the predicted DQ types, based on these six tag SNPs, with those executed with current validated laboratory typing methods of the HLA-DQA1 and -DQB1 genes in three large cohorts. The results were validated in three European celiac populations. Conclusion: Using this method, only six SNPs were needed to predict the risk types carried by >95% of CD patients. We determined that for this tagging approach the sensitivity was >0.991, specificity >0.996 and the predictive value >0.948. Our results show that this tag SNP method is very accurate and provides an excellent basis for population screening for CD. This method is broadly applicable in European populations
Potentially inappropriate medication use among institutionalized elderly individuals in southeastern Brazil
In recent decades, the elderly population in Brazil has grown rapidly, as has concern for the health of this population. Institutionalization in nursing homes has appeared as an alternative form of health care for frail elderly that live alone. The present study evaluated the pharmacotherapy and inappropriate drug prescriptions for institutionalized elderly patients living in long-term institutions in southeastern Brazil. This research was conducted at five institutions with a total sample of 151 individuals aged at least 60 years. Databases were used to identify drug interactions, defined daily dose and inappropriate prescriptions. The prevalence of drug intake among the elderly was 95.36%, and there were an average of 3.31 ± 1.80 drug prescriptions per individual. Based on Beers criteria, the prevalence of inappropriate prescriptions was 25.83%. In addition, 70.2% of prescriptions were prescribed at a higher dosage than the defined daily dose (ATC/WHO). Potential drug interactions were identified for 54.11% of prescriptions; 81.42% of these were of moderate severity. The main inappropriate drugs were prescribed for cardiovascular and nervous system problems. Institutionalized elderly individuals presented a high consumption and misuse of medications, requiring professional intervention to monitor prescriptions and improve the quality of service for this population.Nas últimas décadas, o número de idosos no Brasil cresceu rapidamente, bem como, a preocupação com a saúde desta parcela da população. Neste cenário, a institucionalização em casas de repouso aparece como uma alternativa para os cuidados com a saúde dos idosos debilitados ou que vivem sozinhos. O presente estudo avaliou a farmacoterapia e a prescrição inadequada para idosos que residem em instituições de longa permanência no sudeste do Brasil. Esta pesquisa foi realizada em cinco instituições, totalizando uma amostra de 151 indivíduos com idade a partir de 60 anos. O banco de dados foi analisado para identificação de interações medicamentosas, dose diária definida e critérios de Beers. Dentre os indivíduos avaliados, 95,36% consomem algum tipo de medicamento, sendo 3,31 ± 1,80 medicamentos prescritos por indivíduo. Com base nos critérios de Beers, a prevalência de prescrições inapropriadas foi de 25,83%, sendo também encontradas 70,2% das prescrições com doses superiores à dose diária definida (ATC/WHO). Interações medicamentosas potenciais estavam presentes em 54,11% das prescrições, sendo 81,42% com grau moderado de gravidade. Os principais medicamentos inapropriados foram prescritos para problemas cardiovasculares e do sistema nervoso. Os idosos institucionalizados apresentam alto consumo e uso inadequado de medicamentos, sendo necessária a intervenção profissional para monitorar as prescrições médicas e melhorar a qualidade do serviço de distribuição de medicamentos a esta parte da população
Temporary ponds and hygrophilous grasslands plant communities in Monfurado site of community importance
Temporary ponds are seasonal wetlands subjected to extreme and unstable ecological conditions due to the annual alternation
between the flooded and dry phases. The ephemeral character of the flora and the changeable annual weather explain
why these habitats have been poorly studied and documented. The objective of this study, in the Monfurado Site of Community
Importance, was to characterize seasonal wetland plant communities using a phytosociological approach and numerical analysis
(classification and ordination). The results lead to the site’s inclusion in two Natura 2000 Network priority habitats: Mediterranean
temporary ponds (3170) in depression landform with impermeable layer in the underground with Isoeto-Nanojuncetea
vegetation complexes; pseudo-steppe with grasses and annuals of the Thero-Brachypodietea, sub-type ‘Malhadais’ (6220pt2)
in shallow areas with Isoeto-Nanojuncetea speciesinfo:eu-repo/semantics/publishedVersio
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