Evaluaci?n de la composici?n flor?stica, la estructura y la diversidad de tres bosques secos tropicales en el alto Magdalena, departamento del Tolima

80 p. Recurso Electr?nicoSe evalu? la composici?n flor?stica y estructural de tres bosques secos tropicales en el alto Magdalena, ubicados en el sur-oriente (bosque La Flor), centro (bosque El Neme) y norte (bosque la Zorra) del departamento del Tolima, por medio de tres parcelas permanentes de muestreo (PPM) de 0,25 has (50*50 m) cada una, una para cada bosque. Fueron medidos ?rboles, arbustos, lianas y palmas. La composici?n flor?stica, estructura horizontal, alfa-diversidad y beta-diversidad fue evaluada para todos los individuos con DN ? 1 cm., la estructura vertical fue analizada para los individuos arb?reos con DN ? a 5 cm. Se encontraron para el bosque La Flor 304 individuos representados por 62 especies pertenecientes a 26 familias bot?nicas, para La Zorra 1282 individuos representados por 60 especies pertenecientes a 35 familias, para El Neme 791 individuos, distribuidos en 21 especies pertenecientes a 12 familias bot?nicas, las especies de mayor peso ecol?gico fueron Handroanthus chrysanthus, Cordia gerascanthus y Platymiscium hebestachyum respectivamente. Los diagramas de perfil fueron graficados con los software AutoCAD 2017 y SketchUp 2017, resultando perfiles evidentemente contrastantes, la estructura vertical se analiz? por medio de diagramas de dispersi?n de copas, se visualizaron diferentes estratos relacionados con la complejidad de los respectivos bosques. Seg?n los ?ndices de Margalef, Shannon- Wiener y Simpson, el ecosistema m?s diverso es el bosque La Flor, seguido de la Zorra, El neme present? diversidad baja a media con dominancia de alta a media, seg?n Jaccard los 3 ecosistemas fueron ampliamente diferentes con menos del 6% de similaridad. Palabras clave: Bosque Seco Tropical, Composici?n Flor?stica, Estructura Horizontal, Estructura Vertical, Alfa-Diversidad, Beta-Diversidad, Tolima, Alto Magdalena.The floristic and structural composition of three tropical dry forests in the upper Magdalena, located in the south-east (La Flor forest), center (El Neme forest) and north (La Zorra forest) of the department of Tolima, was evaluated by means of three permanent sampling plots (PPM) of 0.25 ha (50*50 m) each, one for each forest. Trees, shrubs, lianas and palms were measured. The floristic composition, horizontal structure, alpha-diversity and beta-diversity were evaluated for all individuals with DN ? 1 cm., the vertical structure was analyzed for arboreal individuals with DN ? at 5 cm. For La Flor forest, 304 individuals represented by 62 species belonging to 26 botanical families were found, for La Zorra 1282 individuals represented by 60 species belonging to 35 families, for El Neme 791 individuals distributed in 21 species belonging to 12 botanical families, the species with the highest ecological weight were Handroanthus chrysanthus, Cordia gerascanthus and Platymiscium hebestachyum respectively. The profile diagrams were plotted with AutoCAD 2017 and SketchUp 2017 software, resulting in contrasting profiles, the vertical structure was analyzed by means of crown scatter diagrams, different strata related to the complexity of the respective forests were visualized. According to the indices of Margalef, Shannon-Wiener and Simpson, the most diverse ecosystem is the La Flor forest, followed by the Zorra, El neme presented low to medium diversity with high to medium dominance, according to Jaccard the 3 ecosystems were widely different with less than 6% similarity. Keywords: Tropical Dry Forest, Floristic Composition, Horizontal Structure, Vertical Structure, Alpha-Diversity, Beta-Diversity, Tolima, Alto Magdalena

Should be Peristomal infection after Percutaneous Endoscopic Gastrostomy considered a Healthcare Associated Infection? Role of antibiotic prophylaxis

Poster presented at the 17th EAHP – European Association of Hospital Pharmacists Congress. Milan, 21-23 March 2012

Psychiatric Background Characterization of Patients with Dementia - the relation between depression and dementia

Depression has been reported as the most frequent neuropsychiatric diagnostic on the clinical background of demented patients, mainly with Alzheimer dementia (AD). Several studies have showed that this relation is not occasional. In this work we present the results of the statistical analysis made on the characterization of the psychiatric background of demented patients from the memory consultation of the Braga Hospital

Evaluation of Road Signs conformity for improving road safety in urban Areas: a Case Study in Guimarães, Portugal

A segurança rodoviária depende da existência de uma rede de sinalética apropriada e de uma correta manutenção dos sinais ao longo do tempo. Os sinais verticais de trânsito, para serem efetivamente funcionais, devem permanecer adequadamente visíveis e percetíveis. Neste artigo apresenta-se uma metodologia para avaliar o nível de conformidade dos sinais, procurando identificar eventuais deficiências funcionais. A metodologia baseia-se numa análise multicritério, onde são considerados dois critérios e oito subcritérios relacionados com as características físicas e operacionais dos sinais. A visibilidade dos sinais foi avaliada através de uma análise em SIG, considerando as distâncias de travagem e de paragem. O nível de intervenção obtido é constituído por quatro níveis, em função da necessidade e da urgência em recuperar a função dos sinais. A metodologia foi aplicada na cidade de Guimarães, Portugal. Os resultados comprovam a funcionalidade da metodologia e revelam que mais de metade dos sinais analisados não estão totalmente em conformidade com as normas, muito por culpa da estrutura urbana compacta e da presença de vegetação nas ruas. Uma vez que, para vários sinais, as distâncias de travagem e de paragem não são adequadas, pode-se concluir que os utilizadores destas ruas estão expostos a riscos que ameaçam a sua segurança.Road safety depends on the existence of an adequate network of signs and an effective management for proper conservation. Vertical traffic signs will only be effectively functional if they still provide adequate visibility and legibility. This paper presents a methodology to evaluate the level of conformity of traffic signs, in order to identify where to improve their functionality. The methodology is based on a multicriteria analysis, using two criteria and eight subcriteria that are related with signs physical and operational attributes. Their visibility was evaluated through a spatial analysis in a geographical information system, taking into account the braking and stopping distances. The intervention level is defined by four levels related with the necessity and urgency in restoring signs functionality. This methodology was applied in the city of Guimarães, Portugal. The results showed the usefulness of the methodology and revealed that more than half of the analyzed signs not fully complied with the norms, mainly due to the compactness of the urban structure e the presence of vegetation in streets. Since the braking and stopping distances of many signs are not adequate, it can be concluded that road users are exposed to risks and their safety can be threated.info:eu-repo/semantics/publishedVersio

Moderate exercise training provides left ventricular tolerance to acute pressure overload

Moreira-Goncalves D, Henriques-Coelho T, Fonseca H, Ferreira RM, Amado F, Leite-Moreira A, Duarte JA. Moderate exercise training provides left ventricular tolerance to acute pressure overload. Am J Physiol Heart Circ Physiol 300: H1044-H1052, 2011. First published December 24, 2010; doi: 10.1152/ajpheart.01008.2010.-The present study evaluated the impact of moderate exercise training on the cardiac tolerance to acute pressure overload. Male Wistar rats were randomly submitted to exercise training or sedentary lifestyle for 14 wk. At the end of this period, the animals were anaesthetized, mechanically ventilated, and submitted to hemodynamic evaluation with biventricular tip pressure manometers. Acute pressure overload was induced by banding the descending aorta to induce a 60% increase of peak systolic left ventricular pressure during 120 min. This resulted in the following experimental groups: 1) sedentary without banding (SED + Sham), 2) sedentary with banding (SED + Band), and 3) exercise trained with banding (EX + Band). In response to aortic banding, SED + Band animals could not sustain the 60% increase of peak systolic pressure for 120 min, even with additional narrowing of the banding. This was accompanied by a reduction of dP/dt(max) and dP/dt(min) and a prolongation of the time constant tau, indicating impaired systolic and diastolic function. This impairment was not observed in EX + Band (P < 0.05 vs. SED + Band). Additionally, compared with SED + Band, EX + Band presented less myocardial damage, exhibited attenuated protein expression of active caspase-3 and NF-kappa B (P < 0.016), and showed less protein carbonylation and nitration (P < 0.05). These findings support our hypothesis that exercise training has a protective role in the modulation of the early cardiac response to pressure overload

Avaliação da visibilidade de sinais de trânsito com base numa análise multicritério implementada num SIG. Uma aplicação no centro de Guimarães, Portugal

Publicado em "Anais do 7º Congresso Luso-Brasileiro para o Planejamento Urbano, Regional, Integrado e Sustentável"A visibilidade dos sinais de trânsito é fundamental para regular o tráfego rodoviário, auxiliar os condutores e garantir a segurança dos utilizadores das vias. Neste artigo apresenta-se uma metodologia para avaliar a visibilidade dos sinais verticais de trânsito. Com base numa análise multicritério, atribuiram-se pesos a três parâmetros que condicionam a visibilidade dos sinais: a dimensão do sinal, a dimensão do poste e a visibilidade do sinal. A análise da visibilidade foi realizada através do geoprocessamento num SIG a partir da rasterização do terreno. Com a aplicação da análise multicritério obteve-se uma escala de prioridades de intervenção associada à visibilidade dos sinais. Esta metodologia foi aplicada a um conjunto de sinais na cidade de Guimarães, Portugal. Os resultados comprovam a funcionalidade da metodologia e revelam que os sinais na cidade de Guimarães têm problemas de visibilidade resultantes da estrutura urbana compacta e da presença de vegetação nas ruas

Interactive tabletops for architectural visualization: combining stereoscopy and touch interfaces for cultural heritage

This paper presents an interactive apparatus to didactically explore Alberti's treatise on architecture, De re aedificatoria, as generative design systems, namely shape grammars. This apparatus allows users to interactively explore such architectonical knowledge in both appealing and informal ways, by enabling them to visualize and manipulate in real-time different design solutions. The authors identify the difficulties on encoding the architectural knowledge of a parametric design model into an interactive apparatus to be used by laypeople. At last, the authors discuss the results of a survey conducted to users that interacted with the prototype in order to assess its ability to communicate the knowledge of an architectural language.Fundação para a Ciência e a Tecnologia (FCT)Escola de Arquitectura da Universidade do MinhoThis work was partially supported by the Portuguese Foundation for Science and Technology (FCT): doctoral grants SFRH/BD/69910/2010, SFRH/BD/88040/2012 and SFRH/BD/91372/2012, and projects MIVis PTDC/EIA-EIA/104031/2008, Alberti Digital PTDC/AUR-AQI/108274/2008, TECTON-3D PTDC/EEI-SII/3154/2012 and Pest OE/EEI/LA0021/2013

LipidTOX: A fatty acid-based index efficient for ecotoxicological studies with marine model diatoms exposed to legacy and emerging contaminants

Contaminants, when present above certain thresholds, can induce physiological constraints to organisms, namely diatoms, a model group representative of marine phytoplankton, triggering feedback mechanisms, such as changes in cell’s fatty acid profiles, that can be used as biomarkers towards xenobiotic exposure. Having this in mind and considering the ecological relevance of diatom fatty acid profiles as well as their recognized potential as biomarkers of contaminant exposure, the present work aims to develop and test the accuracy of an integrative multi-biomarker response index based on the fatty acid profiles of marine diatoms (using Phaeodactylum tricornutum as model diatom) exposed to several emerging contaminants. In terms of the impacts at the individual fatty acid level, it was possible to observe changes transversal to different contaminants, such as the reduction of C14:0 and C16:0 fatty acids, with increasing xenobiotic concentration, as observed, for example, under propranolol and fluoxetine exposure. Enhancement of C16:2n-7 and C16:3n-4 concentrations as well as complete disruption of the basal fatty acid profile was observed in diatoms exposed to copper nanoparticles. These individual diverse and intrinsically connected alterations in fatty acid concentrations depended on the type and dose of the xenobiotic applied, highlighting the need to address these profiles as a whole. The evaluation of the diatom cells’ fatty acids using a multivariate approach revealed a high degree of sensitivity of these biochemical traits to disclose the type of xenobiotic applied to the diatoms, as well as the exogenous concentration used. These biochemical profiles were later incorporated into a unifying numerical index (LipidTOX) using an integrated biomarker response approach. The LipidTOX index showed strong correlations with both the exogenous xenobiotic concentration applied as well as with the growth features assessed for the exposed cultures, revealing a very high efficiency in translating growth impairments imposed by each of the xenobiotics tested at the different test concentrations. The LipidTOX index proved to be an efficient tool for ecotoxicological assays with marine model diatoms and evidenced a high degree of reliability for classifying the exposure of the cells to emerging contaminants. The results and benefits of the LipidTOX index application can be easily communicated to non-expert audiences such as stakeholders, policymakers and environmental managers so that this approach can be used in future toxicological evaluations of the impacts of classical and emerging xenobiotics in marine primary producers.info:eu-repo/semantics/publishedVersio

LipidTOX: a fatty acid-based index efficient for ecotoxicological studies with marine model diatoms exposed to legacy and emerging contaminants

Contaminants, when present above certain thresholds, can induce physiological constraints to organisms, namely diatoms, a model group representative of marine phytoplankton, triggering feedback mechanisms, such as changes in cell’s fatty acid profiles, that can be used as biomarkers towards xenobiotic exposure. Having this in mind and considering the ecological relevance of diatom fatty acid profiles as well as their recognized potential as biomarkers of contaminant exposure, the present work aims to develop and test the accuracy of an integrative multi-biomarker response index based on the fatty acid profiles of marine diatoms (using Phaeodactylum tricornutum as model diatom) exposed to several emerging contaminants. In terms of the impacts at the individual fatty acid level, it was possible to observe changes transversal to different contaminants, such as the reduction of C14:0 and C16:0 fatty acids, with increasing xenobiotic concentration, as observed, for example, under propranolol and fluoxetine exposure. Enhancement of C16:2n-7 and C16:3n-4 concentrations as well as complete disruption of the basal fatty acid profile was observed in diatoms exposed to copper nanoparticles. These individual diverse and intrinsically connected alterations in fatty acid concentrations depended on the type and dose of the xenobiotic applied, highlighting the need to address these profiles as a whole. The evaluation of the diatom cells’ fatty acids using a multivariate approach revealed a high degree of sensitivity of these biochemical traits to disclose the type of xenobiotic applied to the diatoms, as well as the exogenous concentration used. These biochemical profiles were later incorporated into a unifying numerical index (LipidTOX) using an integrated biomarker response approach. The LipidTOX index showed strong correlations with both the exogenous xenobiotic concentration applied as well as with the growth features assessed for the exposed cultures, revealing a very high efficiency in translating growth impairments imposed by each of the xenobiotics tested at the different test concentrations. The LipidTOX index proved to be an efficient tool for ecotoxicological assays with marine model diatoms and evidenced a high degree of reliability for classifying the exposure of the cells to emerging contaminants. The results and benefits of the LipidTOX index application can be easily communicated to non-expert audiences such as stakeholders, policymakers and environmental managers so that this approach can be used in future toxicological evaluations of the impacts of classical and emerging xenobiotics in marine primary producers.info:eu-repo/semantics/publishedVersio