A digital controller using multirate sampling for gain control

Digital controller using multirate sampling for gain contro

Making The Implicit Explicit: Values And Morals In Queensland Teacher Education

Since the mid-1990s, the role of the teacher has expanded to include overseeing and intervening in the moral development of students. In Australia, this expectation of teachers was generated largely by the national coalition government, and has been continued by the Labor government. As a result, it is essential that pre-service teacher education courses skill pre-service teachers in appropriate ways to educate students about values and morals. Additionally, education degrees must provide opportunities for pre-service teachers to analyse and reflect on their own values and morals. Professional Standards for Queensland Teachers (Queensland College of Teachers, 2006) takes the view that teachers must be reflective practitioners who are aware of their own morals and values. This paper argues that while Australian teacher educators integrate values into the units they teach and demonstrate values through what they teach and how they teach it, they often fail to address values and morals explicitly. Some ways in which teacher education degrees could be reshaped to provide an explicit focus on values and morals are discussed

Bone Quality in Children with Severe Neurological Impairment and Intellectual Disability: Diagnostic methods and determinants of low bone quality

This thesis addresses bone quality in children with severe neurological impairment and intellectual disability (ID). In clinical practice severe problems concerning bone health are encountered in this group of severely disabled children

Shadows in the Opera Lights

A look into the bounds of love and if the chains can be broken when the curtain peals back to reveal the truth

School Connectedness: Using School Websites to Foster a Sense of Belonging in School

The current study explored the relationships between adolescents\u27 internet use, feelings of school connectedness, social anxiety, and interest in the school\u27s website. Participants were 8th (n = 121) and 11th (n = 71) grade students from a rural upstate New York, middle and high school. Data was collected using the Social Use of the Internet Survey, which was designed to measure participants\u27 internet use, interest in the school\u27s website, feelings of school connectedness and loneliness. No significant mean differences were present between the 8th and 11th grade groups on school connectedness and on interest in the school\u27s website. Multiple regression analysis showed that for both 8th and 11th grade samples, loneliness was a significant negative predictor of school connectedness. School connectedness and school contact via e-mail were significant predictors of school website interest among the 8 n grade sample, while in the 1 1th grade sample, being bullied was a significant predicator of school website interest. The qualitative findings of this study provide the school with valuable information regarding students\u27 interest in using their school website, participants\u27 preferred online activities and opinions of their school website

La santé mentale et l’exposition aux solvants organiques en milieu de travail

Grâce à leurs propriétés chimiques, les solvants organiques ont une affinité particulière avec le système nerveux, de sorte qu'ils peuvent interférer avec le fonctionnement d'un élément ou d'un ensemble d'éléments de ce système. Des études de cas et des études épidémiologiques ont démontré une association entre l'exposition à long terme à certains solvants et le risque de neuropathies, d'encéphalopathies et de troubles psychiatriques. Mais entre l'état de bien-être et la maladie, il existe un continuum de détérioration de la santé mentale. Le présent article vise à poser le problème de la détérioration du bien-être chez des personnes exposées à des agents neurotoxiques, à partir d'une étude menée auprès de 71 traavilleurs exposés professionnellement à l'éther éthylique ou l'éthanol dans une usine d'explosifs et de 74 travailleurs non exposés. Il s'agit d'une étude de nature exploratoire, portant sur la prévalence de symptômes qui pourraient résulter de l'expositon professionnelle à ces agents neurotoxiques. Les résultats montrent que les personnes exposées, comparées aux personnes non exposées, manifestent davantage de symptômes prénarcotiques durant le travail, tels que des sensations d'ivresse, des difficultés à articuler les mots... Ces personnes rapportent également une fréquence plus élevée de symptômes généraux reflétant l'instabilité de l'humeur, des problèmes de fatigue, de sommeil, de mémoire et de concentration. Le nombre rapporté de symptômes prénarcotiques et de symptômes généraux augmente avec le degré d'exposition. La discussion porte sur la signification de ces résultats pour la santé mentale des personnes impliquées.Organic solvents, due to their chemical properties have a particular affinity with the nervous system, giving them the power to interfere with the functioning of an element. Case histories and epidemiological studies have shown a relationship between a long term exposure to certain solvents and the danger of neuropathies, encephalopathies and psychiatric troubles. This article's aim is to expose the problem of the deterioration of the well being of persons exposed to neurotoxic agents. A study was made in an explosives factory with workers who were exposed to ethylic ether or ethanol and a control of 74 workers who were not exposed. This is an exploratory study which mostly looks into the prevalence of symptoms that could result from a professional contact with theses neurotoxic agents. The results show that the exposed workers, compared to those who were not exposed, are afflicted with more prenarcotic symptoms at work : such as feelings of drunkeness and difficulties in articulating words. The workers also show more frequently general symptoms such as changes of mood, problems of fatigue, sleep, memory and concentration. The reported numbers of prenarcotic symptoms increase with the degree of exposure. The significance of these results on the mental health of the persons involved is studied

A computer aided teleoperator system Final report

Computer aided teleoperator system for remote handling task

Cathodic electrochemical protection of molybdenum electrodes in an all-electric melter

During several research programmes the cathodic protection of molybdenum heating electrodes was tested step by step on an allelectric glass melting furnace over eight years. Starting with one pair at least, all 12 heating electrodes were superimposed with a negative direct voltage to reduce the corrosion of molybdenum. The molybdenum release of the electrodes could nearly be halved at the used furnace and with the glass melted. The molybdenum content of the glass was determined to compare the unprotected and the protected State, respectively, and to confirm the success of the cathodic protection

Exposição humana ao mercúrio e efeitos adversos à saúde na Amazônia: uma revisão

This paper examines issues of human mercury (Hg) exposure and adverse health effects throughout the Amazon region. An extensive review was conducted using bibliographic indexes as well as secondary sources. There are several sources of Hg (mining, deforestation, reservoirs), and exposure takes place through inhalation or from fish consumption. There is a wide range of exposure, with mean hair-Hg levels above 15µg/g in several Amazonian communities, placing them among the highest reported levels in the world today. Dietary Hg intake has been estimated in the vicinity of 1-2µg/kg/day, considerably higher than the USEPA RfD of 0.1µg/kg/day or the World Health Organization recommendation of 0.23µg/kg/day. Neurobehavioral deficits and, in some cases, clinical signs have been reported both for adults and children in relation to Hg exposure in several Amazonian countries. There is also some evidence of cytogenetic damage, immune alterations, and cardiovascular toxicity. Since fish provide a highly nutritious food source, there is an urgent need to find realistic and feasible solutions that will reduce exposure and toxic risk, while maintaining healthy traditional dietary habits and preserving this unique biodiversity.Este artigo examina questões sobre exposição humana ao mercúrio (Hg) e seus efeitos adversos à saúde na Amazônia, com base em extensa revisão da literatura. Diferentes bioindicadores revelam uma ampla faixa de exposição, com teores médios de Hg em cabelo acima de 15µg/g em diversas comunidades amazônicas, situando-as dentre as mais expostas no mundo atualmente. Taxas de ingestão diária de Hg foram estimadas em alguns estudos e situam-se entre 1-2µg/kg/dia, consideravelmente acima das doses de referência estabelecidas pela USEPA (0,1µg/kg/dia) ou pela OMS (0,23µg/kg/dia). Déficits neurocomportamentais e, em alguns casos, sinais clínicos relacionados à exposição mercurial têm sido relatados tanto em adultos quanto em crianças de diversos países amazônicos. Há também evidências de dano citogenético, mudanças imunológicas e toxicidade cardiovascular. Visto que peixe é altamente nutritivo e há diversas fontes de Hg nesta região, existe uma necessidade urgente de encontrar soluções realistas e viáveis capazes de reduzir os níveis de exposição e de risco tóxico, ao mesmo tempo mantendo os hábitos alimentares tradicionais, preservando a biodiversidade píscea e frutífera e melhorando a saúde das populações desfavorecidas e afetadas.International Development Research Center (IDRC) - CanadaCanadian Institutes of Health Research (CIHR)FAPES

Va te faire soigner, ton usine est malade : la place de l’hystérie de masse dans la problématique de la santé des femmes au travail

L'hystérie de masse se déduit comme l'occurrence épidémique d'une série de symptômes physiques en l'absence de désordre organique et d'agent pathogène identifiables. En dépit de larges variations individuelles et contextuelles, une étonnante similarité unit les différents épisodes rapportés dans la littérature : présence d'un événement déclencheur, progression et régression rapide de symptômes diffus et prédominance de femmes parmi les cas. Nous résumons les recherches dans ce domaine et discutons de la surreprésentation des femmes à travers les hypothèses rattachées à : 1- la biologie et le poids de la socialisation différentielle des hommes et des femmes ; 2- la mauvaise évaluation des risques environnementaux, organisationnels et ergonomiques dans les milieux où l'on assiste à l'hystérie de masse. L'interprétation féministe, en filigrane, s'attaque au préjugé de la vulnérabilité féminine pour mettre en lumière la sous-estimation de la pénibilité des conditions de travail des femmes.Mass hysteria is defined as the epidemic occurence of a series of physical symptoms in the absence of organic disorder and identifiable pathogen agents. In spite of substantial individual and contextual variations, there are striking similarities that unite the different episodes reported in the literature : existence of a triggering event, progression and rapid regression of unrelated symptoms, and cases involving predominantly women. The authors summarize research in that field and discuss the overrepresenta-tion of women through hypotheses linked with : 1) biology and the weight of differential socialization of women and men ; 2) the poor evaluation of environmental, organizational and ergonomical risks in areas where mass hysteria is witnessed. Feminist interpretation tacitly confronts the preconcept notion of feminine vulnerability in order to shed light on the fact that women's adverse working conditions are indeed underestimated