Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 12.173
Filtrar
2.
Water Sci Technol ; 80(1): 173-183, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31461434

RESUMO

Wastewater treatment facilities collecting wastewater from longstanding sewer networks of five municipalities in the Ave River basin (located in NW Portugal) are especially vulnerable to water inflows since they have considerable extensions of sewers installed in stream and riverbeds. TRATAVE, the company responsible for operating the system, designed and implemented a monitoring network to measure discharges along the entire drainage network and treatment facilities in order to reduce those water inflows. Several flow measurement devices were installed at strategic locations within the sewer network and integrated with a SCADA system responsible for its operation. A decision support system (DSS) is being implemented using the Delft-FEWS platform, integrating monitoring data and models. Based on monitored data and model results, an estimation of infiltration volumes during wet periods is presented. Moreover, the capabilities of the DSS are illustrated in: (i) location of manholes losses along sewer networks during wet periods; (ii) identification and location of unknown connections to the sewer network using wastewater balances; and (iii) design of a PID controller for a pumping station using on-line tank water level measurement. Acquired knowledge resulting from the DSS greatly improved the utility performance both in terms of economic revenue and environmental protection.


Assuntos
Eliminação de Resíduos Líquidos/métodos , Águas Residuárias , Cidades , Portugal , Rios , Esgotos
3.
Stud Health Technol Inform ; 264: 123-127, 2019 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-31437898

RESUMO

In this paper, we trained a set of Portuguese clinical word embedding models of different granularities from multi-specialty and multi-institutional clinical narrative datasets. Then, we assessed their impact on a downstream biomedical NLP task of Urinary Tract Infection disease identification. Additionally, we intrinsically evaluated our main model using an adapted version of Bio-SimLex for the Portuguese language. Our empirical results showed that the larger, coarse-grained model achieved a slightly better outcome when compared with the small, fine-grained model in the proposed task. Moreover, we obtained satisfactory results with Bio-SimLex intrinsic evaluation.


Assuntos
Aprendizado de Máquina , Processamento de Linguagem Natural , Linguagem , Narração , Portugal
6.
Rev Assoc Med Bras (1992) ; 65(6): 810-817, 2019 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-31340309

RESUMO

BACKGROUND: Time-motion analysis has been used to provide detailed insight into surfers' performance. This study evaluated surfers' activity times at the Portuguese surfing championship in order to account for the time spent in each surfing activity. METHODS: Eighty-seven individually recorded videos of surfers were analyzed, showing their activity over the entire heat, and video analysis software was used to obtain each surfer's activity profile in the competition. RESULTS: The results breakdown by time percentage show that the surfers were paddling 50.9% of the time, sprint paddling for wave 1.9%, were stationary 34.1% of the time, wave riding 3.7%, and involved in miscellaneous activities (e.g., duck diving, board recovery, etc.) 9.4% of the total time. Average times spent in each surfing activity were 18.6 seconds for paddling, 2.9 seconds for sprint paddling for a wave, 21.7 seconds for the stationary period, 11.5 seconds for wave riding, and 6.9 seconds for miscellaneous activities. CONCLUSIONS: The data revealed that the most performed heat activity was paddling, allowing us to conclude that surfing is basically a long-arm paddling activity and that this activity constitutes a specific surfing competition demand, which in turn means that individual surfer's data can be used as a starting point for the development of tailored conditioning training programs.


Assuntos
Desempenho Atlético/fisiologia , Movimento/fisiologia , Estudos de Tempo e Movimento , Esportes Aquáticos/fisiologia , Atletas , Estudos Transversais , Feminino , Humanos , Masculino , Portugal , Valores de Referência , Fatores Sexuais , Fatores de Tempo , Gravação em Vídeo
7.
Med Lav ; 110(3): 191-201, 2019 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-31268426

RESUMO

BACKGROUND: Work-related musculoskeletal disorders are a group of painful disorders which arise from work situations with continuous repetitive movements, carried out with speed and without time for recovery. In the performance of their job tasks, supermarket cashiers are exposed to this type of ergonomic stress. OBJECTIVES: This study aimed to determine the incidence of self-reported injuries in Portuguese hypermarket cashiers and to identify the related factors. METHODS: The sample included 176 hypermarket cashiers, aged between 18 and 65 years (39.57±11.11), 167 (94.9%) of them women. Symptoms and exposure of interest have been collected through an interview-based questionnaire. The presence of carpal tunnel syndrome was assessed by Phalen's test. RESULTS: One hundred and seventeen (66.5%) cashiers reported an injury during employment, 100 (56.8%) of them reporting an injury in the previous 6 months. A total of 166 injuries were reported, corresponding to 1.14 injuries per 1,000 hours of work. The most common injuries were non-specific pain (30.4%), located in the shoulder (23.2%), cervical (22%) and lumbar spine (22%). Part-time workers showed a 2.25 times greater risk of injury (95% CI: 1.17-4.32; p=0.015) than full-time workers. Cashiers with more than 6 years of employment length had a 3.59 times higher risk of injury (95% CI: 1.84-6.99; p≤0.001) than those who had been working for a shorter period. CONCLUSIONS: Our data showed a high rate of reported injuries among hypermarket cashiers, especially among part-time workers and those with the highest length of employment.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Autorrelato , Adolescente , Adulto , Idoso , Ergonomia , Feminino , Humanos , Pessoa de Meia-Idade , Portugal , Adulto Jovem
8.
BMC Infect Dis ; 19(1): 567, 2019 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-31262256

RESUMO

BACKGROUND: Increasing multidrug-resistant tuberculosis (MDR-TB) incidence is a major threat against TB eradication worldwide. We aim to conduct a detailed MDR-TB study in Portugal, an European country with endemic TB, combining genetic analysis and epidemiological data, in order to assess the efficiency of public health containment of MRD-TB in the country. METHODS: We used published MIRU-VNTR data, that we reanalysed using a phylogenetic analysis to better describe MDR-TB cases transmission occurring in Portugal from 2014 to 2017, further enriched with epidemiological data of these cases. RESULTS: We show an MDR-TB transmission scenario, where MDR strains likely arose and are transmitted within local chains. 63% of strains were clustered, suggesting high primary transmission (estimated as 50% using MIRU-VNTR data and 15% considering epidemiological links). These values are higher than those observed across Europe and even for sensitive strains in Portugal using similar methodologies. MDR-TB cases are associated with individuals born in Portugal and evolutionary analysis suggests a local evolution of strains. Consistently the sublineage LAM, the most common in sensitive strains in Europe, is the more frequent in Portugal in contrast with the remaining European MDR-TB picture where immigrant-associated Beijing strains are more common. CONCLUSIONS: Despite efforts to track and contain MDR-TB strains in Portugal, their transmission patterns are still as uncontrolled as that of sensitive strains, stressing the need to reinforce surveillance and containment strategies.


Assuntos
Mycobacterium tuberculosis/genética , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia , Tuberculose Resistente a Múltiplos Medicamentos/microbiologia , Adulto , Idoso , Pequim , Análise por Conglomerados , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Repetições Minissatélites , Mycobacterium tuberculosis/efeitos dos fármacos , Filogenia , Portugal/epidemiologia , Fatores de Risco , Migrantes , Tuberculose Resistente a Múltiplos Medicamentos/transmissão
9.
J Environ Manage ; 247: 644-650, 2019 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-31279141

RESUMO

Road mortality is the most noticeable effect of roads on wildlife. Road verges may provide important refuges for small mammals and rabbits, particularly when roads cross intensive agricultural or grazed areas. In these circumstances, the increasing use of verges by prey species may attract predators to road surroundings increasing the risk of roadkill. The aim of this study was to quantify the role of prey availability (small mammals and rabbits) on predator road casualties, taking into account road and surrounding landscape characteristics. We analyzed this effect on different predator species, such as, snakes, owls and mammal carnivores. The study took place in a 10 km stretch of a National Road (EN4) in southern Portugal. Relationships among predator mortality and explanatory variables (prey abundance, landscape characteristics, and road verge features) were evaluated using Multivariate Redundancy Analysis (RDA) followed by a variation partitioning. Our results show that, although landscape features explained most of the mortality variation, the prey availability was also very important. Roadkills of Montpellier snake and Egyptian mongoose are strongly associated with wild rabbit abundance on verges, while mortality of stone marten, barn owl and tawny owl is related with wood mouse abundance, Mediterranean forest (montado) density, and verge shrub density. Implications for verge management and implementation of mitigation actions are discussed. We suggest vegetation removal in verges to decrease shelter and food availability for prey, and/or the promotion of habitat for prey in areas distant from roads.


Assuntos
Ecossistema , Estrigiformes , Animais , Egito , Mamíferos , Camundongos , Portugal , Coelhos
10.
Workplace Health Saf ; 67(8): 391-398, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31288628

RESUMO

In the nursing context, structural empowerment has proved to be an organizational tool leading to the prevention of stress and burnout. Structural empowerment is defined as the perception of the presence or absence of empowering conditions in the workplace. However, few studies have explored the particular relationships between power in organizations, structural empowerment, and burnout. The aim of this study was to examine the mediator role of structural empowerment (access to opportunities, information, support, and resources) in the relationship between formal and informal power, and core burnout among Portuguese nurses. We administered a questionnaire among a convenience sample of 304 nurses employed in public hospitals. Model fit and mediation analysis were conducted using path analysis and bootstrapping methods. Formal power, informal power, access to opportunities, and access to resources were significant and negative predictors of core burnout. Opportunities, resources, and informal power had a direct influence on core burnout. Formal power and informal power showed an indirect influence, mediated by opportunities and resources, on core burnout. These findings suggest that by providing nurses with high levels of formal and informal power, as well as access to resources and opportunities, their risk of core burnout can be lowered.


Assuntos
Esgotamento Profissional/complicações , Recursos Humanos de Enfermagem/psicologia , Poder (Psicologia) , Adulto , Esgotamento Profissional/psicologia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cultura Organizacional , Portugal , Inquéritos e Questionários
11.
RECIIS (Online) ; 13(2): 381-390, abr.-jun. 2019. ilus
Artigo em Inglês | LILACS | ID: biblio-1005635

RESUMO

This study aims to assess the quality of online health information about gamete donation based on a quantitative analysis of websites from fertility-clinics in Portugal. All websites providing information about gamete donation were comprehensively screened in June 2017. The reliability and usability of 43 webpages were assessed through the Website Information Evaluation Instrument from the Office of Disease Prevention and Health Promotion (ODPHP). None of the webpages met the purpose, content development, and updating criteria set by the ODPHP. Several shortcomings were observed: limited accessibility for users with disabilities, lack of simplified user experiences and easy search functionality, and lack of users' interaction with content. The quality of online information on gamete donation in fertility-clinics' websites requires improvement to become user-friendly. The development of specific guidelines and periodic evaluations of these websites using sensitive instruments, merging quantitative and qualitative assessments, is required to guarantee the quality of information that aims to improve reproductive health literacy through people-centered communication.


Este estudo pretende avaliar a qualidade da informação online sobre doação de gametas em sites de clínicas de fertilidade em Portugal. Todos os sites com informação sobre doação de gametas foram escrutinados em junho de 2017. A confiabilidade e usabilidade de 43 páginas web foram avaliadas usando o instrumento Website Information Evaluation do Office of Disease Prevention and Health Promotion. Nenhuma página cumpriu os critérios de propósito, desenvolvimento e atualização de conteúdo. Encontraram-se várias lacunas na usabilidade: acessibilidade limitada para usuários com incapacidade, falta de clareza e de simplicidade de utilização, e impossibilidade de interagir com os conteúdos. Importa melhorar a qualidade da informação online sobre doação de gametas em clínicas de fertilidade, tornando-a mais amigável para o usuário. É necessário desenvolver guias específicos e avaliar periodicamente estes sites, usando instrumentos sensíveis que contemplem análises quantitativas e qualitativas, garantindo a sua qualidade para promover literacia em saúde reprodutiva através da comunicação centrada nas pessoas.


Este estudio evaluó la calidad de la información sobre la donación de gametos en sitios web de clínicas-defertilidad. Todos los sitios web de clínicas en Portugal fueron examinados (junio 2017). La confiabilidad y usabilidad de 43 páginas web fueron evaluadas con el Website Information Evaluation do Office of Disease Prevention and Health Promotion. Ninguna de las páginas cumplió con los criterios de propósito, desarrollo de contenido y actualización. Se observaron deficiencias: accesibilidad limitada para los usuarios con discapacidades, falta de una experiencia del usuario simplificada y baja funcionalidad de búsqueda fácil, y falta de interacción de los usuarios con el contenido. Importa mejorar la calidad de la información online sobre la donación de gametos en clínicas de fertilidad, para convertirse en fácil de usar. Es necesario el desarrollo de guías específicas y evaluaciones periódicas de los sitios web, utilizando instrumentos sensibles que combinen evaluaciones cuantitativas y cualitativas, promoviendo la alfabetización en salud reproductiva.


Assuntos
Humanos , Educação de Pacientes como Assunto , Internet , Atenção à Saúde , ISO 9000 , Informação de Saúde ao Consumidor , Concepção de Doadores , Portugal , Redes de Comunicação de Computadores , Obtenção de Tecidos e Órgãos , Comunicação , Fertilidade , Saúde Reprodutiva
12.
Int. j. morphol ; 37(2): 561-567, June 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1002259

RESUMO

The morphological characteristics and biological maturation are among the more important factors in the performance in the Rhythmic Gymnastics. Thus, the aims of the present study were: (1) identify the training, morphological and biological maturation characteristics in elite Brazilian and Portuguese gymnasts; (2) compare these characteristics across groups. The Brazilian Portuguese National Team (13 gymnasts) were studied. Anthropometric and body composition measurements were performed. For analysis of biological maturation, the sexual (pubertal stages and age at menarche) and somatic (offset maturational) maturation were evaluated. The training data were collected by interviewing. For the statistical analysis, Mann-Whitney test was applied. The somatotype and calculation of its components were performed according to the Health-Carter method thought of the MER Goulding Software Development. Brazil and Portugal National Teams presented similar training volume and training onset, however Brazilian gymnasts had higher age and years of practice in Rhythmic Gymnastics than Portuguese gymnasts. Brazilian had higher body mass; height; lower limb length; triceps, subscapular and abdominal skinfolds; relaxed arm and thigh girths; and endomorphy somatotype component than Portuguese. The groups showed different somatotypes: Brazilian (endomorphic ectomorph) and Portuguese (balanced ectomorph), although without statistical significance. The groups demonstrated a delay in maturational development. Similar breast (stages 3 and 4) and pubic hair (stages 2 and 3) development were verified. In total, 84.6 % of gymnasts had reached menarche (15.9±2.6 years) and all gymnasts had reached the age at peak height velocity (14.9±1.2 years). The distance and age at peak height velocity were higher in Brazilian than in Portuguese.


Las características morfológicas y la maduración biológica se encuentran entre los factores más importantes en el rendimiento en la gimnasia rítmica. Por lo tanto, los objetivos del presente estudio fueron: (1) identificar las características de entrenamiento, morfológicas y maduración biológica en las gimnastas brasileñas y portuguesas de élite; (2) comparas estas características entre grupos. Se estudió la Selección Nacional Portuguesa y Brasileña (13 gimnastas). Se realizaron mediciones antropométricas y de composición corporal. Para el análisis de la maduración biológica, se evaluaron las etapas sexuales (etapas de pubertad y edad en la menarquia) y somáticas (edad en el pick de velocidad de altura). Los datos de entrenamiento fueron recolectados mediante entrevistas. Para el análisis estadístico, se aplicó la prueba de Mann-Whitney. El somatotipo y el cálculo de sus componentes se realizaron de acuerdo con el método de Health-Carter, pensado en el desarrollo de software MER Goulding. Los equipos nacionales de Brasil y Portugal presentaron un volumen de entrenamiento y un inicio de entrenamiento similares; sin embargo, las gimnastas brasileñas tenían mayor edad y años de práctica en gimnasia rítmica que las gimnastas portuguesas. Las brasileñas tenían mayor masa corporal; altura; longitud del miembro inferior; pliegues cutáneos del músculo tríceps, músculo subescapular y a nivel abdominal; circunferencia relajada del brazo y del muslo; y el componente somatotípico endomórfico que el portugués. Los grupos eran diferentes somatotipos: brasileñas (ectomórfico endomórfico) y portugués (ectomórfico equilibrada), aunque sin significación estadística. Los grupos demostraron un retraso en el desarrollo madurativo. Se verificó un desarrollo similar del seno (estadios 3 y 4) y del vello púbico (estadios 2 y 3). En total, el 84,6 % de las gimnastas alcanzaron la menarquia (15,9 ± 2,6 años) y el 92,3 % de las gimnastas alcanzaron su altura máxima con 17,4 ± 1,2 años. La distancia y la edad en la velocidad de alcance de la altura máxima fueron más altas en Brasil que en Portugal.


Assuntos
Humanos , Feminino , Adolescente , Adulto Jovem , Composição Corporal , Antropometria , Crescimento , Ginástica , Portugal , Maturidade Sexual , Brasil
13.
Stud Health Technol Inform ; 261: 109-114, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31156100

RESUMO

The hospitalisation of patients with Heart Failure (HF) represents an increasing problem for the healthcare system with more than 26 million worldwide suffering from this disease. Predictions demonstrate that the total health expenditure will increase by 127% in 2030. In Portugal, demographic changes caused by an ageing population are associated with an increase in HF incidence rate, forecasting 479.921 Heart Failure patients by 2035. In this paper, we present the smartBEAT solution that was developed to monitor Heart Failure patients so that physicians can early detect HF decompensation and prevent HF hospitalisations. SmartBEAT collects data from several sensors: weigh scale, blood pressures, physical activity bracelet - and transmits to the cloud where a decision support algorithm helps to detect acute episodes early. The system was evaluated during a pilot phase for two weeks with nine seniors, and later for 1-3 months with 38 seniors HF patients. Adherence to the evaluation protocol was high, and perceptions on wellbeing and control over the disease were considered positive. Moreover, healthcare professionals were overwhelmed with the patients' high adherence and found the usability of the portal high, and providing interesting information about patients' health status.


Assuntos
Insuficiência Cardíaca , Monitorização Fisiológica , Smartphone , Hospitalização , Humanos , Monitorização Fisiológica/instrumentação , Monitorização Fisiológica/métodos , Portugal
14.
Nat Commun ; 10(1): 2480, 2019 06 06.
Artigo em Inglês | MEDLINE | ID: mdl-31171791

RESUMO

Global stakeholders including the World Health Organization rely on predictive models for developing strategies and setting targets for tuberculosis care and control programs. Failure to account for variation in individual risk leads to substantial biases that impair data interpretation and policy decisions. Anticipated impediments to estimating heterogeneity for each parameter are discouraging despite considerable technical progress in recent years. Here we identify acquisition of infection as the single process where heterogeneity most fundamentally impacts model outputs, due to selection imposed by dynamic forces of infection. We introduce concrete metrics of risk inequality, demonstrate their utility in mathematical models, and pack the information into a risk inequality coefficient (RIC) which can be calculated and reported by national tuberculosis programs for use in policy development and modeling.


Assuntos
Política de Saúde , Risco , Tuberculose/epidemiologia , Brasil/epidemiologia , Disparidades nos Níveis de Saúde , Humanos , Modelos Teóricos , Formulação de Políticas , Portugal/epidemiologia , Medição de Risco , Vietnã/epidemiologia , Organização Mundial da Saúde
15.
Food Chem ; 295: 341-349, 2019 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-31174767

RESUMO

The inclusion of edible wild plants in human diet has been receiving an increasing attention, as they represent an easily accessible source of nutrients, vitamins and antioxidants. In this work, the leaves of Umbelicus rupestris (Salisb.) Dandy, an edible species for which only scarce data is available in literature, were thoroughly evaluated for its nutritional profile, chemical characterization and bioactive properties. Being considered a succulent plant, the leaves revealed a very high content of moisture, with several beneficial compounds, including omega-3 polyunsaturated fatty acids, tocopherols and different polyphenols. A total of twelve flavonoids, three phenolic acids and one phenylpropanoid glucoside were identified in the decoction and/or hydroethanolic extracts, with most of them being described for the first time in this plant. Both extracts showed antioxidant activity and potential to inhibit some of the assayed bacteria, while not presenting cytotoxic effects on a non-tumour primary cell culture.


Assuntos
Magnoliopsida/química , Valor Nutritivo , Plantas Comestíveis/química , Antioxidantes/análise , Flavonoides/análise , Hidroxibenzoatos/análise , Extratos Vegetais/análise , Extratos Vegetais/química , Folhas de Planta/química , Polifenóis/análise , Portugal , Tocoferóis/análise
16.
Plant Physiol Biochem ; 141: 315-324, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31207492

RESUMO

Different SA concentrations (10, 100 and 1000 µM) were applied in young olive trees (Olea europaea L.) subjected to drought and rewatering. Plants treated with 10 µM exhibited a close behavior to SA-starved plants. Although both 100 and 1000 µM improved the balance between ROS production and scavenging, 100 µM was more efficient. During drought, 100 µM improved ROS detoxification and scavenging by the maintenance or overaccumulation of soluble proteins. During recovery, soluble proteins return to well-watered values and increased the investment in non-enzymatic antioxidants. 100 µM was also the most effective in plant ionome regulation, improving macro and micronutrients uptake, namely P, Fe, Mn and Zn, and changing mineral allocation patterns. Therefore, 100 µM also countered the drought-induced decline in total plant biomass accumulation. The application of suitable SA concentrations is an efficient tool to improve cellular homeostasis and growth of plants subjected to recurrent drought episodes.


Assuntos
Secas , Íons/metabolismo , Olea/metabolismo , Oxirredução , Folhas de Planta/metabolismo , Ácido Salicílico/farmacologia , Antioxidantes/química , Biomassa , Minerais/química , Nutrientes/química , Estresse Oxidativo , Fotossíntese/efeitos dos fármacos , Raízes de Plantas/metabolismo , Portugal , Espécies Reativas de Oxigênio/metabolismo , Água/metabolismo
17.
Waste Manag Res ; 37(8): 803-814, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31185835

RESUMO

Efficiency assessment and benchmarking are crucial for managing any organization. However, especially from a regulatory perspective, such efficiency assessment and benchmarking must be unbiased from context-specific issues and should provide an absolute rating, rather than a relative one. The current work reviews the approaches used for performance assessment and benchmarking waste collection services, revealing that the majority are biased and are not absolute, and proposes two alternative context-unbiased and absolute performance indicators, the collection capacity use (CCU) and the segregated waste collection efficiency (SWE). The proposed indicators were calculated for 246 utilities operating in Portugal. The utilities were then ranked accordingly, and their position was compared with the position attained using the equivalent performance indicators in the system currently in use by the Portuguese service regulator. The results reveal ranking differences of over 50 positions and illustrate how misleading the results from context-biased and relative metrics can be.


Assuntos
Benchmarking , Portugal
18.
Waste Manag Res ; 37(9): 941-950, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31244393

RESUMO

Landfill site selection is a relevant and necessary issue for waste management. However, it is an extremely complex task since it must take into account different environmental, economic and socio-political criteria that need to comply with strict regulations and meet different opinions. Accordingly, in this paper we propose a multi-criteria EVIAVE-(Evaluación del impacto ambiental en vertederos) based approach to evaluate the suitability of a set of possible landfill locations and rationally provide an optimal location for a landfill. The approach requires a comprehensive analysis to identify the best feasible site(s) that minimize a Global Landfill Risk Index (GRI), focused on environmental, economic and administrative impacts, and simultaneously comply with governmental regulations and constraints. This GRI is based on the Environmental Landfill Index, Administrative Landfill Index, Environmental Risk Index, Environmental Value, Probability of Contamination and Contamination Risk Index. An innovative feature of this approach lies in incorporating a mathematical model that combines weighted environmental and administrative issues. The model not only provides an optimal landfill location but also establishes landfill location ranks according to indexes of interest. This methodology reveals flexibility and high adaptability, being a useful and effective tool in the decision-making process. The methodology presented was tested with data available from a preliminary study developed in the municipalities of Oporto Metropolitan Area, Portugal, for the implementation of a multi-municipal landfill, which considers nine different locations for analysis.


Assuntos
Eliminação de Resíduos , Gerenciamento de Resíduos , Cidades , Sistemas de Informação Geográfica , Portugal , Instalações de Eliminação de Resíduos
19.
Int J Syst Evol Microbiol ; 69(10): 3014-3021, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31219416

RESUMO

During an extensive survey of marine fungi in coastal marine environments from Portugal, a collection of Penicillium isolates were obtained from sea water, macroalgae and driftwood. Sixteen distinct Penicillium species were identified with Penicillium terrigenum and Penicillium brevicompactum being the most frequent. A Penicillium species isolated from sea water could not be affiliated to any known species. Phylogenetic analyses based on the ITS region of the rDNA and the beta-tubulin (benA) gene placed it into Penicillium section Ramosa, distinct from all currently known species and with Penicillium tunisiense as its closest relative. Although having similar morphological characteristics, these species differ in micromorphological and molecular characters. Thus, Penicillium lusitanum sp. nov. is proposed as a novel species.


Assuntos
Penicillium/classificação , Filogenia , Água do Mar/microbiologia , Biodiversidade , DNA Fúngico/genética , DNA Espaçador Ribossômico/genética , Penicillium/isolamento & purificação , Portugal , Alga Marinha/microbiologia , Análise de Sequência de DNA , Tubulina (Proteína)/genética , Madeira/microbiologia
20.
Environ Sci Pollut Res Int ; 26(23): 24075-24087, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31228061

RESUMO

Knowledge regarding the concentration levels resulting from the use of agricultural pesticides may indicate the nature of the controls necessary to reduce environmental and human health risks to an acceptable level. Therefore, the main goal of the present work was to assess the spatial and temporal occurrence of 35 pesticides in the River Sado estuary (Portugal) in 2017 and evaluate its environmental condition, as data for estuarine ecosystems is scarce. Since pesticides are very susceptible to matrix effects promoted by environmental samples, to attain the main goal, we developed a fast and almost solvent-free environmentally friendly method with a good performance for both estuarine surface water and sediment samples. Quantified residues were determined mostly during summer, in line with the pesticide application period. Five herbicides (alachlor, bentazon, metobromuron, metribuzin and triclopyr) were measured in the water before and after the production season, suggesting a long-term aquatic exposure. Sediment samples were less contaminated, since a lower number of quantified pesticides were found in the study area, in lower frequencies and lower concentrations. No potential high adverse effects of the use of agricultural pesticides were expected on the aquatic organisms of the Sado estuary, even considering the potential combination effect of pesticide mixtures.


Assuntos
Estuários , Praguicidas/análise , Poluentes Químicos da Água/análise , Agricultura , Organismos Aquáticos , Cromatografia Líquida , Ecossistema , Ecotoxicologia/métodos , Monitoramento Ambiental/métodos , Sedimentos Geológicos/análise , Humanos , Praguicidas/toxicidade , Portugal , Rios/química , Estações do Ano , Extração em Fase Sólida , Espectrometria de Massas em Tandem , Poluentes Químicos da Água/toxicidade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA