882 resultados para Regular amphetamine users
Resumo:
Introduction: In recent years, the benefits associated with the use of cochlear implants (CIs), especially with regard to speech perception, have proven to surpass those produced by the use of hearing aids, making CIs a highly efficient resource for patients with severe/profound hearing loss. However, few studies so far have assessed the satisfaction of adult users of CIs. Objective: To analyze the relationship between the level of speech perception and degree of satisfaction of adult users of CI. Method: This was a prospective cross-sectional study conducted in the Audiological Research Center (CPA) of the Hospital of Craniofacial Anomalies, University of São Paulo (HRAC/USP), in Bauru, São Paulo, Brazil. A total of 12 users of CIs with pre-lingual or post-lingual hearing loss participated in this study. The following tools were used in the assessment: a questionnaire, "Satisfaction with Amplification in Daily Life" (SADL), culturally adapted to Brazilian Portuguese, as well as its relationship with the speech perception results; a speech perception test under quiet conditions; and the Hearing in Noise Test (HINT)Brazil under free field conditions. Results: The participants in the study were on the whole satisfied with their devices, and the degree of satisfaction correlated positively with the ability to perceive monosyllabic words under quiet conditions. The satisfaction did not correlate with the level of speech perception in noisy environments. Conclusion: Assessments of satisfaction may help professionals to predict what other factors, in addition to speech perception, may contribute to the satisfaction of CI users in order to reorganize the intervention process to improve the users' quality of life.
Resumo:
Introduction: Hearing loss (HL) is defined as the complete or partial loss of hearing ability. Aims: To characterize (1) the degree of satisfaction among adult and elderly hearing aid (HA) users who were treated by a public hearing health service and (2) the relationship between satisfaction and the variables of gender, age, degree of HL, and type of HA. Method: The clinical and experimental study included the administration of the Satisfaction with Amplification in Daily Life (SADL) questionnaire to 110 patients who had used HAs for more than 3 months and were 18 years of age or older. Results: Test patients were sex-balanced (48% were women) and had a mean age of 67 years. A relatively high incidence of sensorineural moderate HL was detected in the study patients (66%) and device B was the most commonly used HA type (48%). No significant differences were evident between HA satisfaction and sex. The importance placed on services/costs and personal image varied between age groups. Correlation was evident at all levels between user satisfaction and amplification. Decreased satisfaction was observed in individuals with severe and/or profound HL. The type of HA used yielded statistically significant differences in the positive effects referring. Conclusion: No correlations were evident between the different factors proposed. HA users exhibited high levels of satisfaction in all SADL areas
Resumo:
A inclusão de alunos com necessidades educacionais especiais no ensino regular depende da preparação da comunidade escolar para promover a participação de todos os alunos. Foi objetivo deste estudo conhecer, do ponto de vista do professor do ensino fundamental da rede pública municipal, as estratégias pedagógicas que utilizavam para a inclusão de crianças com deficiência na classe comum. Para isso foram realizadas entrevistas semiestruturadas individuais e, posteriormente, grupais com 11 professores de cinco escolas, um representante do Centro de Formação e Acompanhamento à Inclusão e um coordenador pedagógico. As entrevistas foram gravadas e transcritas. Após diversas leituras foi possível identificar como temáticas principais: sentidos e imaginários do professor sobre a deficiência, formação do professor para efetivação do processo de inclusão, bem como a utilização de estratégias pedagógicas diferenciadas e formação de rede de apoio na escola. Os entrevistados utilizavam estratégias gerais como aula expositiva, debates, e específicas como: avaliação dos alunos, adaptação do material, atividades em duplas, parceria com o professor da sala de apoio e acompanhamento à inclusão. Parte dos entrevistados trouxe uma visão com relação aos alunos com deficiência permeada de possibilidades, acreditando no potencial de aprendizagem dos mesmos, enquanto para outros, o discurso centrou-se, sobretudo, na impossibilidade da aprendizagem. Os docentes identificaram a necessidade de apoio institucional para seu trabalho, incluindo possibilidades de formação a partir das demandas cotidianas. Responder às necessidades levantadas é parte dos desafios para implementar a Educação Inclusiva na perspectiva da Educação para Todos, para a efetivação dos direitos de crianças com necessidades educacionais especiais.
Resumo:
OBJETIVOS: avaliar as modificações na prática de atividade física (AF) e as barreiras para adoção de um estilo de vida saudável em mulheres que receberam orientações nutricionais e de AF durante a gestação e no primeiro ano após o parto. MÉTODOS: estudo de coorte com 57 mulheres (Grupo Controle = 29 e Grupo Intervenção = 28), e idade média igual a 28 (±6) anos. As informações foram obtidas através de entrevistas em visita domiciliar (durante a intervenção) e inquérito telefônico (um ano após o término da intervenção), utilizou-se questionário de AF. Para análise das barreiras foi realizada uma entrevista semiestruturada com questões abertas, as quais foram codificadas e agrupadas para análise dos dados. Foram realizados testes de qui-quadrado, Mann-Whitney U e Friedman. RESULTADOS: aos seis meses, apenas 30% das mulheres do grupo Intervenção realizavam AF no lazer pelo menos 120 minutos por semana, contra 10% do grupo Controle, reduzindo para 18% e 4%, respectivamente, dois anos após o parto. As principais barreiras à prática de AF regular foram: falta de tempo (44%), cuidado com os filhos (37%), trabalho (21%), afazeres domésticos (21%) e comodismo (26%). CONCLUSÕES: futuros programas devem priorizar a aquisição de conhecimento, visando à adoção de um estilo de vida ativo no pós-parto, considerando as barreiras maternas.
Resumo:
OBJETIVOS: Analisar criticamente a inclusão do portador de necessidades especiais no ensino regular brasileiro, considerando aspectos sociais e jurídicos, por meio de revisão de literatura. ESTRATÉGIA DE PESQUISA: A pesquisa bibliográfica foi conduzida em bases de dados de acesso público: LILACS, SciELO, Portal Cochrane e IUSDATA, sendo esta última da Biblioteca da Faculdade de Direito da Universidade de São Paulo, considerando todos os artigos publicados até o mês de dezembro de 2010. Como estratégia de busca foram utilizados os seguintes termos livres: educação inclusiva, educação especial, proposta inclusiva e portador de necessidades especiais. CRITÉRIOS DE SELEÇÃO: Durante a busca, foram avaliados e selecionados apenas os estudos cujo resumo ou corpo do artigo tivesse relação com o objetivo proposto. ANÁLISE DE DADOS : Os artigos potencialmente relevantes para a revisão foram apresentados em uma ficha protocolar contendo critérios de elegibilidade do estudo, métodos utilizados, características do grupo de artigos analisado, tipo de intervenção realizada e resultados obtidos no estudo. Os artigos classificados como opinião de especialistas, apesar de apresentarem baixo nível de evidência científica, foram incluídos no trabalho, pois são frequentemente encontrados na literatura sobre o assunto. RESULTADOS: Foram encontrados 1.399 artigos, e após leitura dos resumos foram selecionados 120 artigos potencialmente relevantes considerando-se o objetivo da pesquisa. Destes, 67 artigos foram citados em mais de uma base de dados, o que resultou em 53 artigos para serem lidos na íntegra. Após a leitura dos 53 artigos, foram excluídos 15 que não se enquadravam nos critérios de inclusão. Desta forma, 38 estudos foram incluídos e analisados. CONCLUSÃO: Após a análise crítica da literatura da área conclui-se que, até o momento, de maneira geral, a escola recebe, mas há muito a percorrer para incluir os alunos portadores de necessidades especiais, embora o país possua o escopo da inclusão. Assim, faz-se necessário o estabelecimento de diretrizes e ações políticas visando uma inclusão efetiva.
Resumo:
In many countries buildings are responsible for a substantial part of the energy consumption, nd it varies according to their energetic and environmental performances. The potential for major reductions in buildings consumption have bee well documented in Brazil. Opportunities have been identified throughout the life cycle of the buildings, due of projects in diverse locations without the proper adjustments. This article offers a reflection about project processes and how its understanding can be conducted in an integrated way, favoring the use of natural resources and lowering energy consumption. It concludes by indicating that the longest phase in the life cycle of a building is also the phase responsible for its largest energy consumption, not only because of its duration but also for the interaction with the end user. Therefore, in order to harvest the energy cost reduction potential from future buildings designers need a holistic view of the surrounding, end users, materials and methodologies.
Resumo:
Glutamate acts as a neurotransmitter within the Central Nervous System (CNS) and modifies immune cell activity. In lymphocytes, NMDA glutamate receptors regulate intracellular calcium, the production of reactive oxygen species and cytokine synthesis. MK-801, a NMDA receptor open-channel blocker, inhibits calcium entry into mast cells, thereby preventing mast cell degranulation. Several lines of evidence have shown the involvement of NMDA glutamate receptors in amphetamine (AMPH)-induced effects. AMPH treatment has been reported to modify allergic lung inflammation. This study evaluated the effects of MK-801 (0.25mg/kg) and AMPH (2.0mg/kg), given alone or in combination, on allergic lung inflammation in mice and the possible involvement of NMDA receptors in this process. In OVA-sensitized and challenged mice, AMPH and MK-801 given alone decreased cellular migration into the lung, reduced IL-13 and IL10 levels in BAL supernatant, reduced ICAM-1 and L-selectin expression in granulocytes in the BAL and decreased mast cell degranulation. AMPH treatment also decreased IL-5 levels. When both drugs were administered, treatment with MK-801 reversed the decrease in the number of eosinophils and neutrophils induced by AMPH in the BAL of OVA-sensitized and challenged mice as well as the effects on the expression of L-selectin and ICAM-1 in granulocytes, the IL-10, IL-5 and IL-13 levels in BAL supernatants and increased mast cell degranulation. At the same time, treatment with MK-801, AMPH or with MK-801+AMPH increased corticosterone serum levels in allergic mice. These results are discussed in light of possible indirect effects of AMPH and MK-801 via endocrine outflow from the CNS (i.e., HPA-axis activity) to the periphery and/or as a consequence of the direct action of these drugs on immune cell activity, with emphasis given to mast cell participation in the allergic lung response of mice.
Resumo:
[EN] Research background and hypothesis. Several attempts have been made to understand some modalities of sport from the point of view of complexity. Most of these studies deal with this phenomenon with regard to the mechanics of the game itself (in isolation). Nevertheless, some research has been conducted from the perspective of competition between teams. Our hypothesis was that for the study of competitiveness levels in the system of league competition our analysis model (Shannon entropy), is a useful and highly sensitive tool to determine the degree of global competitiveness of a league. Research aim. The aim of our study was to develop a model for the analysis of competitiveness level in team sport competitions based on the uncertainty level that might exist for each confrontation. Research methods. Degree of uncertainty or randomness of the competition was analyzed as a factor of competitiveness. It was calculated on the basis of the Shannon entropy. Research results. We studied 17 NBA regular seasons, which showed a fairly steady entropic tendency. There were seasons less competitive (? 0.9800) than the overall average (0.9835), and periods where the competitiveness remained at higher levels (range: 0.9851 to 0.9902). Discussion and conclusions. A league is more competitive when it is more random. Thus, it is harder to predict the fi nal outcome. However, when the competition is less random, the degree of competitiveness will decrease signifi cantly. The NBA is a very competitive league, there is a high degree of uncertainty of knowing the fi nal result.
Resumo:
[POR] Introdução: Em Portugal, além das aulas de educação física, as escolas oferecem tempos destinados ao desporto escolar (DE), que poderão aumentar os níveis de actividade física dos alunos. Objectivo: Analisar os níveis e os correlatos da participação no DEnos ensinos regular e militar, identificando a su a relação com variáveis sociodomográficas e atitudes.
Resumo:
The irrigation scheme Eduardo Mondlane, situated in Chókwè District - in the Southern part of the Gaza province and within the Limpopo River Basin - is the largest in the country, covering approximately 30,000 hectares of land. Built by the Portuguese colonial administration in the 1950s to exploit the agricultural potential of the area through cash-cropping, after Independence it became one of Frelimo’s flagship projects aiming at the “socialization of the countryside” and at agricultural economic development through the creation of a state farm and of several cooperatives. The failure of Frelimo’s economic reforms, several infrastructural constraints and local farmers resistance to collective forms of production led to scheme to a state of severe degradation aggravated by the floods of the year 2000. A project of technical rehabilitation initiated after the floods is currently accompanied by a strong “efficiency” discourse from the managing institution that strongly opposes the use of irrigated land for subsistence agriculture, historically a major livelihood strategy for smallfarmers, particularly for women. In fact, the area has been characterized, since the end of the XIX century, by a stable pattern of male migration towards South African mines, that has resulted in an a steady increase of women-headed households (both de jure and de facto). The relationship between land reform, agricultural development, poverty alleviation and gender equality in Southern Africa is long debated in academic literature. Within this debate, the role of agricultural activities in irrigation schemes is particularly interesting considering that, in a drought-prone area, having access to water for irrigation means increased possibilities of improving food and livelihood security, and income levels. In the case of Chókwè, local governments institutions are endorsing the development of commercial agriculture through initiatives such as partnerships with international cooperation agencies or joint-ventures with private investors. While these business models can sometimes lead to positive outcomes in terms of poverty alleviation, it is important to recognize that decentralization and neoliberal reforms occur in the context of financial and political crisis of the State that lacks the resources to efficiently manage infrastructures such as irrigation systems. This kind of institutional and economic reforms risk accelerating processes of social and economic marginalisation, including landlessness, in particular for poor rural women that mainly use irrigated land for subsistence production. The study combines an analysis of the historical and geographical context with the study of relevant literature and original fieldwork. Fieldwork was conducted between February and June 2007 (where I mainly collected secondary data, maps and statistics and conducted preliminary visit to Chókwè) and from October 2007 to March 2008. Fieldwork methodology was qualitative and used semi-structured interviews with central and local Government officials, technical experts of the irrigation scheme, civil society organisations, international NGOs, rural extensionists, and water users from the irrigation scheme, in particular those women smallfarmers members of local farmers’ associations. Thanks to the collaboration with the Union of Farmers’ Associations of Chókwè, she has been able to participate to members’ meeting, to education and training activities addressed to women farmers members of the Union and to organize a group discussion. In Chókwè irrigation scheme, women account for the 32% of water users of the familiar sector (comprising plot-holders with less than 5 hectares of land) and for just 5% of the private sector. If one considers farmers’ associations of the familiar sector (a legacy of Frelimo’s cooperatives), women are 84% of total members. However, the security given to them by the land title that they have acquired through occupation is severely endangered by the use that they make of land, that is considered as “non efficient” by the irrigation scheme authority. Due to a reduced access to marketing possibilities and to inputs, training, information and credit women, in actual fact, risk to see their right to access land and water revoked because they are not able to sustain the increasing cost of the water fee. The myth of the “efficient producer” does not take into consideration the characteristics of inequality and gender discrimination of the neo-liberal market. Expecting small-farmers, and in particular women, to be able to compete in the globalized agricultural market seems unrealistic, and can perpetuate unequal gendered access to resources such as land and water.
Resumo:
L’Exploratory Search, paradigma di ricerca basato sulle attività di scoperta e d’apprendimento, è stato per diverso tempo ignorato dai motori di ricerca tradizionali. Invece, è spesso dalle ricerche esplorative che nascono le idee più innovative. Le recenti tecnologie del Semantic Web forniscono le soluzioni che permettono d’implementare dei motori di ricerca capaci di accompagnare gli utenti impegnati in tale tipo di ricerca. Aemoo, motore di ricerca sul quale s’appoggia questa tesi ne è un esempio efficace. A partire da quest’ultimo e sempre con l’aiuto delle tecnologie del Web of Data, questo lavoro si propone di fornire una metodologia che permette di prendere in considerazione la singolarità del profilo di ciascun utente al fine di guidarlo nella sua ricerca esplorativa in modo personalizzato. Il criterio di personalizzazione che abbiamo scelto è comportamentale, ovvero basato sulle decisioni che l’utente prende ad ogni tappa che ritma il processo di ricerca. Implementando un prototipo, abbiamo potuto testare la validità di quest’approccio permettendo quindi all’utente di non essere più solo nel lungo e tortuoso cammino che porta alla conoscenza.
Resumo:
This thesis aimed at addressing some of the issues that, at the state of the art, avoid the P300-based brain computer interface (BCI) systems to move from research laboratories to end users’ home. An innovative asynchronous classifier has been defined and validated. It relies on the introduction of a set of thresholds in the classifier, and such thresholds have been assessed considering the distributions of score values relating to target, non-target stimuli and epochs of voluntary no-control. With the asynchronous classifier, a P300-based BCI system can adapt its speed to the current state of the user and can automatically suspend the control when the user diverts his attention from the stimulation interface. Since EEG signals are non-stationary and show inherent variability, in order to make long-term use of BCI possible, it is important to track changes in ongoing EEG activity and to adapt BCI model parameters accordingly. To this aim, the asynchronous classifier has been subsequently improved by introducing a self-calibration algorithm for the continuous and unsupervised recalibration of the subjective control parameters. Finally an index for the online monitoring of the EEG quality has been defined and validated in order to detect potential problems and system failures. This thesis ends with the description of a translational work involving end users (people with amyotrophic lateral sclerosis-ALS). Focusing on the concepts of the user centered design approach, the phases relating to the design, the development and the validation of an innovative assistive device have been described. The proposed assistive technology (AT) has been specifically designed to meet the needs of people with ALS during the different phases of the disease (i.e. the degree of motor abilities impairment). Indeed, the AT can be accessed with several input devices either conventional (mouse, touchscreen) or alterative (switches, headtracker) up to a P300-based BCI.
Resumo:
Pharmacological cognitive enhancement (CE) is a topic of increasing public awareness. In the scientific literature on studentrnuse of CE as a study aid for academic performance enhancement, there are high prevalence rates regarding the use ofrncaffeinated substances (coffee, caffeinated drinks, caffeine tablets) but remarkably lower prevalence rates regarding the usernof illicit/prescription stimulants such as amphetamines or methylphenidate. While the literature considers the reasons andrnmechanisms for these different prevalence rates from a theoretical standpoint, it lacks empirical data to account for healthyrnstudents who use both, caffeine and illicit/prescription stimulants, exclusively for the purpose of CE. Therefore, wernextensively interviewed a sample of 18 healthy university students reporting non-medical use of caffeine as well as illicit/rnprescription stimulants for the purpose of CE in a face-to-face setting about their opinions regarding differences in generalrnand morally-relevant differences between caffeine and stimulant use for CE. 44% of all participants answered that there is arngeneral difference between the use of caffeine and illicit/prescription stimulants for CE, 28% did not differentiate, 28% couldrnnot decide. Furthermore, 39% stated that there is a moral difference, 56% answered that there is no moral difference andrnone participant was not able to comment on moral aspects. Participants came to their judgements by applying threerndimensions: medical, ethical and legal. Weighing the medical, ethical and legal aspects corresponded to the students’rnindividual preferences of substances used for CE. However, their views only partly depicted evidence-based medical aspectsrnand the ethical issues involved. This result shows the need for well-directed and differentiated information to prevent thernpotentially harmful use of illicit or prescription stimulants for CE.