Biomassa microbiana e respiração do solo em plantações de folhosas consociadas com uma espécie acessória fixadora de N (Robinia pseudoacacia)

A presença de espécies acessórias fixadoras de N aumenta a fertilidade do solo, reduz a competição, particularmente entre diferentes tipologias radiculares e aéreas e valoriza a qualidade da madeira da espécie principal. Os microrganismos do solo, pelas suas características, além de proporcionarem respostas mais rápidas a mudanças no ambiente apresentam um alto potencial de uso na avaliação da qualidade do solo. Este trabalho pretende avaliar alterações na biomassa microbiana e respiração do solo num ensaio de plantações de folhosas consociadas com uma espécie fixadora de N (Robinia pseudoacacia), localizado no concelho de Vimioso no Nordeste Transmontano, instalado em 1998. Para o estudo consideraram-se as parcelas: puro de Prunus avium (PC), puro de Robinia pseudoacacia (PR) e Prunus avium x Robinia pseudoacacia (MRC) consociada na linha de forma alternada com um compasso de 3,5x2,0 m. Em cada parcela foram considerados 4 pontos de amostragem. A recolha de amostras de solo para a determinação dos parâmetros microbianos foi realizada na Primavera, na profundidade de 0-10 cm. A avaliação do C da biomassa microbiana (CBM) foi efectuada pelo método de fumigação-extracção. A respiração do solo foi avaliada pela produção de CO2 em sistema fechado. O carbono total (CT) foi determinado por incineração. Os primeiros resultados do CT não revelaram diferenças significativas entre parcelas. No que respeita à respiração do solo registaram-se, durante os 25 dias de incubação em condições controladas, valores médios de 54,6 µg C-CO2 g-1 solo dia-1 na parcela MRC, 27,9 µg C-CO2 g-1 solo dia-1 na parcela PC e 46,5 µg C-CO2 g-1 solo dia-1 na parcela PR. A análise dos resultados obtidos até agora revela valores mais elevados na parcela MRC embora as diferenças não possam ser consideradas estatisticamente diferentes

Biomassa microbiana e respiração do solo em plantações de folhosas consociadas com uma espécie acessória fixadora de N (Robinia pseudoacacia)

A presença de espécies acessórias fixadoras de N aumenta a fertilidade do solo, reduz a competição, particularmente entre diferentes tipologias radiculares e aéreas e valoriza a qualidade da madeira da espécie principal. Os microrganismos do solo, pelas suas características, além de proporcionarem respostas mais rápidas a mudanças no ambiente apresentam um alto potencial de uso na avaliação da qualidade do solo. Este trabalho pretende avaliar alterações na biomassa microbiana e respiração do solo num ensaio de plantações de folhosas consociadas com uma espécie fixadora de N (Robinia pseudoacacia), localizado no concelho de Vimioso no Nordeste Transmontano, instalado em 1998. Para o estudo consideraram-se as parcelas: puro de Prunus avium (PC), puro de Robinia pseudoacacia (PR) e Prunus avium x Robinia pseudoacacia (MRC) consociada na linha de forma alternada com um compasso de 3,5x2,0 m. Em cada parcela foram considerados 4 pontos de amostragem. A recolha de amostras de solo para a determinação dos parâmetros microbianos foi realizada na Primavera, na profundidade de 0-10 cm. A avaliação do C da biomassa microbiana (CBM) foi efectuada pelo método de fumigação-extracção. A respiração do solo foi avaliada pela produção de CO2 em sistema fechado. O carbono total (CT) foi determinado por incineração. Os primeiros resultados do CT não revelaram diferenças significativas entre parcelas. No que respeita à respiração do solo registaram-se, durante os 25 dias de incubação em condições controladas, valores médios de 54,6 µg C-CO2 g-1 solo dia-1 na parcela MRC, 27,9 µg C-CO2 g-1 solo dia-1 na parcela PC e 46,5 µg C-CO2 g-1 solo dia-1 na parcela PR. A análise dos resultados obtidos até agora revela valores mais elevados na parcela MRC embora as diferenças não possam ser consideradas estatisticamente diferentes

Microbial biomass and N mineralization in mixed plantations of broadleaves and nitrogen-fixing species

The present study was conducted in a 10-year-old trial of mixed plantation located in the Northeast of Portugal. This study was developed in the three following treatments: pure of Robinia pseudoacacia; pure of Prunus avium and mixed of Prunus avium × Robinia pseudoacacia. To better understand the benefit of the consociation of an N-fixing species (Robinia pseudoacacia) with broadleaves quality timber production (Prunus avium), we compared the soil microbial biomass carbon and nitrogen, soil respiration and N-mineralization of these three situations. Net mineralization or immobilization of N in field soils is calculated from measured changes in the mineral-N content of largely undisturbed soil isolated inside tubes in situ. Soil microbial biomass carbon (SMB-C) and nitrogen (SMB-N) were determined by fumigation-extraction method. We also determined the ratio of SMB-C to soil organic carbon (Cmic/Corg) as an indicator of soil organic matter quality or availability, and the metabolic quotient (qCO2) as a measure of microbial efficiency. Microorganisms are generally considered as the driving force or catalyst behind the decomposition process. In this sense, the magnitude Microbial biomass C (MBC) may indicate potential rate of C flux. Indeed, MBC is commonly described as a living or active pool in models that simulate organic C turnover in soils, and the size of this pool directly affects the model outputs. Soil enzymes are mostly of microbial origin and are closely related to microbial biomass. Desidrogenase is one of the most frequently used enzyme tests for the measurement of total microbial activity in soil. This was the methodology used in this study

Patient-physician discordance in assessment of adherence to inhaled controller medication: a cross-sectional analysis of two cohorts

We aimed to compare patient's and physician's ratings of inhaled medication adherence and to identify predictors of patient-physician discordance.(SFRH/BPD/115169/2016) funded by Fundação para a Ciência e Tecnologia (FCT); ERDF (European Regional Development Fund) through the operations: POCI-01-0145-FEDER-029130 ('mINSPIRERS—mHealth to measure and improve adherence to medication in chronic obstructive respiratory diseases—generalisation and evaluation of gamification, peer support and advanced image processing technologies') cofunded by the COMPETE2020 (Programa Operacional Competitividade e Internacionalização), Portugal 2020 and by Portuguese Funds through FCT (Fundação para a Ciência e a Tecnologia).info:eu-repo/semantics/publishedVersio

Morphological and Postural changes in the foot during pregnancy and puerperium : a longitudinal study

The aim of this study is to observe the morphological and postural changes to the foot that take place during pregnancy and the puerperium. Method: In this descriptive, observational, longitudinal study, we analysed 23 pregnant women, with particular attention to morphological and postural aspects of the foot, at three time points during and after pregnancy: in weeks 9-13 of gestation, weeks 32-35 of gestation and weeks 4-6 after delivery. The parameters considered were changes in foot length, the Foot Posture Index (FPI) and the Hernández Corvo Index, which were analysed using a pedigraph and taking into account the Body Mass Index (BMI). The same procedure was conducted in each review. Results: The statistical analyses obtained for each foot did not differ significantly between the three measurement times. A pronator-type footprint was most frequently observed during the third trimester of pregnancy; it was predominantly neutral during the postpartum period. Statistically significant differences between the measurement times were obtained in the right foot for cavus vs. neutral foot type (between the first and third trimesters and also between the first trimester and the puerperium) (in both cases, p < 0.0001). Conclusions: Foot length increases in the third trimester and returns to normal in the puerperium. According to FPI findings, the third trimester of pregnancy is characterised by pronation, while the posture returns to neutrality during the postpartum period. During pregnancy, the plantar arch flattens, and this persists during the puerperium. The incidence of cavus foot increases significantly in the third trimester and in the puerperium

Identification of clusters of asthma control: A preliminary analysis of the inspirers studies

This work was funded by ERDF (European Regional Development Fund) through the operations: POCI- -01-0145-FEDER-029130 (“mINSPIRERS—mHealth to measure and improve adherence to medication in chronic obstructive respiratory diseases - generalisation and evaluation of gamification, peer support and advanced image processing technologies”) co-funded by the COMPETE2020 (Programa Operacional Competitividade e Internacionalização), Portugal 2020 and by Portuguese Funds through FCT (Fundação para a Ciência e a Tecnologia).© 2020, Sociedade Portuguesa de Alergologia e Imunologia Clinica. All rights reserved. Aims: To identify distinct asthma control clusters based on Control of Allergic Rhinitis and Asthma Test (CARAT) and to compare patients’ characteristics among these clusters. Methods: Adults and adolescents (≥13 years) with persistent asthma were recruited at 29 Portuguese hospital outpatient clinics, in the context of two observational studies of the INSPIRERS project. Demographic and clinical characteristics, adherence to inhaled medication, beliefs about inhaled medication, anxiety and depression, quality of life, and asthma control (CARAT, >24 good control) were collected. Hierarchical cluster analysis was performed using CARAT total score (CARAT-T). Results: 410 patients (68% adults), with a median (percentile 25–percentile 75) age of 28 (16-46) years, were analysed. Three clusters were identified [mean CARAT-T (min-max)]: cluster 1 [27(24-30)], cluster 2 [19(14-23)] and cluster 3 [10(2-13)]. Patients in cluster 1 (34%) were characterised by better asthma control, better quality of life, higher inhaler adherence and use of a single inhaler. Patients in clusters 2 (50%) and 3 (16%) had uncontrolled asthma, lower inhaler adherence, more symptoms of anxiety and depression and more than half had at least one exacerbation in the previous year. Further-more, patients in cluster 3 were predominantly female, had more unscheduled medical visits and more anxiety symp-toms, perceived a higher necessity of their prescribed inhalers but also higher levels of concern about taking these inhalers. There were no differences in age, body mass index, lung function, smoking status, hospital admissions or specialist physician follow-up time among the three clusters. Conclusion: An unsupervised method based on CARAT--T, identified 3 clusters of patients with distinct, clinically meaningful characteristics. The cluster with better asthma control had a cut-off similar to the established in the validation study of CARAT and an additional cut-off seems to distinguish more severe disease. Further research is necessary to validate the asthma control clusters identified.publishersversionpublishe

Investigación en color y calidad de alimentos

En esta ponencia se pretende presentar a los alumnos de la Escuela Politécnica Superior, las líneas de investigación del grupo Color y Calidad de Alimentos de la Universidad de Sevilla (AGR225, PAIDI) y las posibilidades de realizar Trabajos postdoctorales o continuar las salidas profesionales en el campo de industrias alimentarias.This paper tries to introduce to the student of Polytechnic School, the research lines of Color and Food Quality Group of the University of Seville (AGR225, PAIDI), and the possibilities of carrying out postdoctoral works or continuing the career in the field of food industries

A asma e os seus diagnósticos diferenciais Asthma and its differential diagnoses

A aspergilose broncopulmonar alérgica (ABPA) ocorre em doentes não imunocomprometidos e é uma patologia de hipersensibilidade induzida pelo Aspergillus5. Estima-se que esteja presente em cerca de 7-14% dos casos de asma crónica corticodependente e o no mesmo número de casos de fibrose quística. A maioria das ABPA são identificadas pela 30-50.ª décadas de vida, mas podem surgir na infância¹. O diagnóstico baseia-se na presença de uma combinação de critérios clínicos, biológicos e radiológicos5. A doença apresenta-se com largo espectro de gravidade, pode ser reconhecida precocemente e tratada agressivamente, impedindo a sua progressão para um estádio de doença grave e debilitante requerendo transplante pulmonar¹. Os autores relatam o caso de uma doente de 41 anos, com antecedentes de asma alérgica desde a infância. Uma asma grave, de difícil controlo e com recurso a corticoterapia sistémica por longos períodos.Allergic bronchopulmonary aspergillosis (ABPA) occurs in immunocompetent patients and belongs to the Aspergillus5 induced hypersensitivity disorders. It is estimated that ABPA complicates approximately 7-14% of cases of chronic steroid-dependent asthma and the same amount of cases of cystic fibrosis. A diagnosis of ABPA is based on a combination of clinical, biological and radiology criteria5. There is a broad spectrum of disease severity. Early detection and aggressively management will impede progressive lung damage to a severe and debilitating disease requiring lung transplantation¹. The authors describe the case of a 41 year-old female with a history of allergic asthma from childhood¹. It was a severe, difficult to control asthma treated with systemic corticosteroids for long periods

A asma e os seus diagnósticos diferenciais

Resumo: A aspergilose broncopulmonar alérgica (ABPA) ocorre em doentes não imunocomprometidos e é uma patologia de hipersensibilidade induzida pelo Aspergillus5.Estima-se que esteja presente em cerca de 7-14% dos casos de asma crónica corticodependente e o no mesmo número de casos de fibrose quística. A maioria das ABPA são identificadas pela 30-50.ª décadas de vida, mas podem surgir na infância1.O diagnóstico baseia-se na presença de uma combinação de critérios clínicos, biológicos e radiológicos5. A doença apresenta-se com largo espectro de gravidade, pode ser reconhecida precocemente e tratada agressivamente, impedindo a sua progressão para um estádio de doença grave e debilitante requerendo transplante pulmonar1.Os autores relatam o caso de uma doente de 41 anos, com antecedentes de asma alérgica desde a infância. Uma asma grave, de difícil controlo e com recurso a corticoterapia sistémica por longos períodos.Rev Port Pneumol 2009; XV (6): 1185-1191 Abstract: Allergic bronchopulmonary aspergillosis (ABPA) occurs in immunocompetent patients and belongs to the Aspergillus5 induced hypersensitivity disorders.It is estimated that ABPA complicates approximately 7-14% of cases of chronic steroid-dependent asthma and the same amount of cases of cystic fibrosis.A diagnosis of ABPA is based on a combination of clinical, biological and radiology criteria4.There is a broad spectrum of disease severity. Early detection and aggressively management will impede progressive lung damage to a severe and debilitating disease requiring lung transplantation.The authors describe the case of a 41 year-old female with a history of allergic asthma from childhood. It was a severe, difficult to control asthma treated with systemic corticosteroids for long periods.Rev Port Pneumol 2009; XV (6): 1185-1191 Palavras-chave: Asma, aspergilose broncopulmonar alérgica, critérios de diagnóstico, Key-words: Asthma, allergic bronchopulmonary aspergillosis, diagnostic guideline