A carregar...
308 resultados
Resultados da pesquisa
A mostrar 1 - 10 de 308
- Issues, policies and instruments involved in a market-based policy for waste management development and the recent organized waste market (mor) in PortugalPublication . Dinis, Maria Alzira PimentaMarket-based instruments for environmental management are somewhat new in the management of natural resources and the environment in general. In this paper we address some questions relating these instruments, which basically offer economic incentives to modify behaviours, focusing the case of the Organized Waste Market (MOR) in Portugal, since this country has adopted Decree-Law No. 210/2009, of 3 September, which sets out a framework for the voluntary trading of waste through an online platform, with the exception of toxic waste. Os instrumentos de gestão baseados no mercado são relativamente recentes na gestão de recursos naturais e do ambiente em geral. Neste artigo focamos algumas questões relacionadas com estes instrumentos, os quais oferecem basicamente incentivos económicos para modificar comportamentos, citando o caso do Mercado Organizado dos Resíduos (MOR) em Portugal, desde que este adoptou o Decreto-Lei n.º 210/2009, de 3 de Setembro, o qual estabelece o enquadramento para o comércio voluntário de resíduos através de uma plataforma online, à excepção dos resíduos perigosos.
- Co-composting: a brief reviewPublication . Dinis, Maria Alzira PimentaA further and stronger effort has to be made in terms of allowing composting to reveal its benefits. Increasing technological experiments have been done with composting of biodegradable wastes and even some considered hazardous. Treated sewage sludge mixed with biodegradable wastes provides a rich source of bacteria and nutrients. But we have gone further and today co-composting is done with a diversity of wastes and not only. There is no turning back in our throwaway society and co-composting plays, thus, an increasingly serious role. É necessário um esforço superior para permitir que a compostagem possa revelar os seus benefícios. Têm sido efectuadas crescentes experiências tecnológicas com a compostagem de resíduos biodegradáveis e mesmo alguns considerados perigosos. A mistura de lamas tratadas com resíduos biodegradáveis constitui uma fonte rica em bactérias e nutrientes. Já avançamos e a co-compostagem é actualmente realizada com uma diversidade de resíduos e não só. Não existe forma de voltar atrás na nossa sociedade do desperdício e a co-compostagem desempenha, assim, um papel crescentemente importante.
- The mediator role of body image-related cognitive fusion in the relationship between disease severity perception, acceptance and psoriasis disabilityPublication . Almeida, Vera; Leite, Ângela; Constante, Diana; Correia, Ana Rita; Almeida, Isabel; Teixeira, Maribel; Vidal, Diogo Guedes; Sousa, Helder; Dinis, Maria Alzira Pimenta; Teixeira, AnaPsoriasis is a long-term skin disorder without a cure, whose patients are particularly susceptible to mental health diseases. Using a sample of patients diagnosed with psoriasis, this study aimed to: (1) identify the clinical and positive psychological variables that contribute the most to psoriasis disability and (2) assess the mediator role of body image-related cognitive fusion in the relation between disease severity perception and acceptance and self-compassion, on one hand, and psoriasis disability on the other. This is an initial cross-sectional exploratory study, with 75 patients diagnosed with psoriasis (males 52%; mean age 54.99 ± 13.72) answering a sociodemographic and a clinical questionnaire, the Psoriasis Disability Index (PDI), the Cognitive Fusion Questionnaire—Body Image (CFQ-BI), the Acceptance and Action Questionnaire—II (AAQ-II), and the Self-Compassion Scale (SCS). Descriptive and inferential statistics were used to characterize and assess the measures and the final model used. Through path analysis and a hierarchical multiple linear regression, it was found that the variables that significantly contributed to psoriasis disability were years of education, impact on social life and body image, explaining 70% of the variance. Body image-related cognitive fusion was a significant mediator in the relationship between disease severity and acceptance, and psoriasis disability. The implications of this study are considered to be extremely relevant, since it will allow additional information to be provided to psoriasis patients, appropriated to their educational level, aiming to reduce distorted perceptions of disease severity and intervene in the ability to accept this specific and important chronic health condition.
- Carvões portugueses: A revalorização moderna possível de um recurso geológico. O caso-de-estudo da Bacia Carbonífera do DouroPublication . Lemos de Sousa, M. J.; Rodrigues, Cristina; Diogo, Miguel Tato; Pinto de Jesus, A.; Mouraz Miranda, A.; Dinis, Maria Alzira Pimenta; Oliveira, Gisela; Chaminé, H.I.; Dinis da Gama, C.; Arrais, C.M.Na sequência de uma síntese sobre as formações datadas do Carbonífero presentes na Bacia Carbonífera do Douro e seu enquadramento geológico, os autores descrevem os estudos modernos, nomeadamente no domínio da estratigrafia efectuados na bacia. Após o fecho das minas de metantracites da bacia (1972 na área do Couto Mineiro de São Pedro da Cova e 1994 na área do Couto Mineiro do Pejão) desenvolveram-se outros importantes estudos, designadamente na área do Couto Mineiro do Pejão, relacionados com o fim da actividade mineira, nomeadamente nos domínios de subsidência mineira e afluxos de água e seus aspectos geológicos e hidrogeomecânicos, estudos estes de que se dá igualmente relato no presente trabalho. Por fim, apresenta-se o essencial do Projecto-Piloto COSEQ elaborado com vista a definir a possível revalorização, em termos modernos, das metantracites da Bacia Carbonífera do Douro como potencial meio de sequestração geológica de CO2. Com efeito, os carvões durienses constituem, hoje, um recurso geológico abandonado do ponto de vista mineiro tradicional.
- School personnel perception of parental involvement and students’ behavior problems: practical implicationsPublication . Caridade, Sónia; Azevedo, Vanessa; Dinis, Maria Alzira Pimenta; Sani, Ana Isabel; Nunes, Laura M.School is a privileged context to prevent specific behavior problems. Parental involvement in school activities is crucial to promote social functioning. This study aimed to access the Portuguese school personnel perception of parental involvement and students’ behavior problems. A study with 333 school personnel, aged between 29 and 66 (M = 50.84, SD = 7.54), was developed. School personnel’s participants rated parental involvement as low and nearly one in five professionals rated student’s general behavior as bad. A significant association between parental involvement and the perception of students’ general behavior was found. 80% of the professionals rating student’s general behavior as bad also rating parental involvement as poor. Additional research into implications of parental involvement in school activities and school students’ behavior problems is necessary aiming assessment, prevention, and intervention strategies in this area.
- Social networks, the internet, and risks: portuguese parents' perception of online groomingPublication . Sani, Ana Isabel; Vieira, Ana Paula; Dinis, Maria Alzira PimentaThe paper presents an exploratory and descriptive quantitative study, involving 560 Portuguese parents with school children, aged between 6 and 17 years. Data collection was carried out through a questionnaire that was made available online and focused on the use of social networks, the Internet and the risk of online grooming. The results showed that about half of the participants did not know the term 'online grooming'. After defining the phenomenon, 97% of the participants considered it very seriously. To prevent risk, 52% of the participants reported talking with their children about online risks and taking precautions to reduce the children's vulnerability. Approximately 89% of the respondents said they knew where to report cybercrime. The study aimed to contribute to a greater awareness of the risks associated with the Internet, involving parents and caregivers in the prevention of situations of victimization of children and adolescents.
- Recent advances in geomathematics in Croatia: examples from subsurface geological mapping and biostatisticsPublication . Malvić, Tomislav; Bošnjak, Marija; Velić, Josipa; Sremac, Jasenka; Ivšinović, Josip; Dinis, Maria Alzira Pimenta; Barudžija, UrošGeomathematics is extremely important in geosciences, particularly in the geology. The key for any geomathematical analysis is the definition of a typical model to be applied for further prognosis, either through deterministic or stochastic approaches. The selection of the appropriate procedure is presented in this paper. Two different geomathematical subfield datasets were used in subsurface geological mapping and palaeontology and different biostatistics applications, representing important geomathematical subfields in the Croatian geology. The different subsurface interpolation methods tested, validated and recommended for application were used to obtain the best possible outcome in reservoir modelling, in the cases with small datasets. Cross- validation may be chosen as the main selection criteria, applied to the Croatian part of the Pannonian Basin System (CPBS). Recent advances in biostatistics applied in palaeontology and case studies from Croatia are also presented, where biometric studies are of significant importance in fossil biota. Data, methods and problems in geosciences are vast subjects, and address a wide spectrum of fundamental science. Because geology includes subsurface and surface geology, and very different datasets regarding variable and number of data, we have chosen here two representative case study groups with original samples from Northern Croatia. Subsurface mapping has been presented on limited petrophysical datasets from the Northern Croatian, Miocene, hydrocarbon reservoirs. Biostatistics have been presented on very different samples, allowing us to achieve paleoenvironmental reconstructions of the size of relevant fossils, such as dinosaurs or other species and their paleoenvironments. All examples highlight examples of the valuable application of geomathematical tools in geology. The results, cautiously validated and correlated with other, non-numerical (indicator, categorical) geological knowledge, are of enormous assistance in creating better geological models.
- Geotourism social constraints and protection instruments from a sustainability perspective - evidence from the Northernmost Brazilian StatePublication . Saldanha Veras, Ana Sibelonia; Vidal, Diogo Guedes; Barros, Nelson; Dinis, Maria Alzira PimentaIn the last decades, the anthropogenic actions on the planet have dually gained visibility: on the one hand as promoters of strategies for safeguarding the environment at a global level and on the other hand as protagonists of the excessive exploitation of its natural resources, threatening the natural balance of the planet. Considering this scenario that results in a need to seek sustainable renewal, the Brazilian indigenous communities living in regions dominated by rock formations classified as natural heritage assume themselves as important vehicles in safeguarding the geological sites through the information they have. There is a lack of knowledge and devaluation regarding the potential of these indigenous communities. Accordingly, the objective of this chapter is to present a vision of the constraints of geotourism in the northernmost Brazilian state of Mucajaí, Roraima (RR), i.e., the duties and responsibilities necessary for the full implementation of geotourism, seeking to safeguard geodiversity in territories dominated by natural heritage, in which the community is sustainably integrated. A review of the official websites of the RR State and of the official legislation was carried out to understand the current geotourism constraints in this region. Based on the results found, regional leaders will be able to identify the specific needs of the region to fully implement the geotourism activity and to promote more sustainable practices to safeguard this region from the anthropic pressure. The use of strategic environmental assessment tools in decision-making on policies and plans for the development of geotourism in a given region should be considered by the official entities in order to ensure the correct assessment of the economic, social, and environmental impacts of this type of interventions.
- Child and adolescent multiple victimization and/or polyvictimization: a portuguese comparative studyPublication . Sani, Ana Isabel; Bastos, Daniela; Dinis, Maria Alzira PimentaWorldwide, children and adolescents are exposed to violence every day and in countless contexts, whether in the family, at school, or in the community. Child multiple victimization has been the subject of extensive international research because of the impact on child and youth development. A quantitative and comparative study aiming to understand child multiple victimization and/or polyvictimization from the perspective of children is presented. Two groups were studied, with and without psychological counselling, with 20 children each, aged 12–18 years old. All the participants answered to juvenile victimization questionnaire (JVQ). The study was approved by the University Ethics Committee responsible for the study in Portugal, and it was initiated after the obtained consent of the children’s legal guardians. The results indicated that young people frequently experience violent situations, with particular emphasis on conventional crimes, e.g., theft, robbery, vandalism, and assault with or without a weapon, with sexual victimization being less common. The results also show that there is a cumulative experience of violence, which evidences multiple victimization and polyvictimization of the child/adolescent throughout their life. These phenomena are not necessarily more common between populations with clinical follow-up. When the types of violence were compared, multiple victimization and polyvictimization, this study found no differences between the samples with and without psychological counselling. It can be concluded that the multiple victimization or polyvictimization problem is not unusual among the population in the studied age range. It is important to alert to the phenomenon of child/adolescent multiple victimization, aiming at a more effective assessment and intervention among these populations. Raising awareness of the phenomenon of multiple child and youth victimization or polyvictimization is of particular importance for preventing violence at all stages of development.
- Health behaviors as a mediator of the association between interpersonal relationships and physical health in a workplace contextPublication . Dinis, Maria Alzira Pimenta; Sousa, Helder Fernando Pedrosa; Moura, Andreia de; Viterbo, Lilian Monteiro Ferrari; Pinto, Ricardo J.The etiology of diseases is multifactorial, involving genetic, environmental, and lifestyle-related behaviors. Considering the pathway that involves behavioral processes, a huge body of empirical evidence has shown that some healthy behaviors such as non-smoking, any or moderate alcohol consumption, a healthy diet, (e.g., fruit and vegetable intake), and physical activity, decrease the risk of disease and mortality. This study aimed to explore the potential mediating effect of combined health behaviors on the association between interpersonal relationships and physical health in a Brazilian adult worker population from the Occupational Health Service within the oil industry in Bahia, Brazil. The sample included 611 workers, of which 567 (92.8%) were males and 44 (7.2%) females, age ranging from 18 to 73 years (M = 41.95; SD = 8.88). The significant predictors of physical health were interpersonal relationships and health behaviors. Health behaviors contributed significantly to a reduction in the effect of interpersonal relationships on physical health outcomes. As far as it is known, there has been no prior work in Brazil that simultaneously examined the best predictors of physical health in oil workers using this conceptual model. Interventions in the workplace environment need to consider health behavior as a mediator between interpersonal relationships and physical health, aligned in a global psychosocial approach to health at work.