1000 resultados para Chumbo - Contaminação - Criança
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A presente patente diz respeito a um dispositivo usado para reduzir a contaminação microbian dos fluidos de corte através de raios ultravioletas, o qual c nsiste em um tampo metálico que se adapta ao reservatório (3) de fluido de corte fechando completamente sua face superior, cujo tampo (1) contém lâmpadas (2) ultravioletas germicidas (UV-C), dispostas lado a lado, apresentando, ainda, pequenas janel s (4) para observação dispostas lateralmente e interruptor (5) ara as lâmpadas (2), sendo que os reatores das lâmpadas (2) s o instalados sobre uma chapa metálica (6).
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Contamination of Brazilian sugar-cane rum by ethyl carbamate, a potentially carcinogenic substance, is considered an obstacle to export of the beverage. Copper is involved in ethyl-carbamate-formation reactions, and the replacement thereof by stainless steel in distillation equipment, with the aim of preventing the formation of said compound, results in a beverage of poor sensory quality owing to the presence of dimethyl sulphide. A reduction in the concentration of sulphurated compounds in the final product may be achieved by the placing of a copper device (Patent No. 8206688) inside the dome of a stainless-steel alembic. It is therefore appropriate to verify the efficiency of using other forms of catalysts that, in addition to reducing ethyl-carbamate levels, are able, likewise, to trigger other catalytic actions that allow the production of a distillate of good sensory quality. Silver is the noble metal most used in industry and, on account of the catalytic properties thereof, it is ideal for use as a catalyst in oxidation reactions. The subject matter of the present invention comprises a method involving the use of silver in the distillation of alcoholic beverages, such as sugar-cane rum, which reduces ethyl-carbamate contamination of the end-product.
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Descrito como o presente Privilégio de Invenção, refere-se a um processo que possibilita a desinfecção do substrato de fermentação, sem adição de agentes tóxicos, de modo a garantir a compatibilidade ambiental da atividade alcooleira, para tanto, a presente invenção garante a desinfecção do substrato de fermentação eliminando as bactérias, que são nocivas ao processo e, preservando as leveduras, além do mesmo ser ambientalmente compatível, pois não deixa resíduos nem necessita a adição de substâncias químicas e, os agentes biocidas, comumente utilizados no controle de contaminações dos processos de fermentação, são dispensados nesse tratamento, sendo usados eletrodos de carbono para tal tarefa.
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Alessandra Del Ré discute nesta obra a importância de se desenvolver um trabalho com o humor na escola, a partir da constatação de que crianças pequenas, de 3 a 5 anos de idade, têm no humor um elemento importante no processo de aquisição da linguagem. Partindo da hipótese de Garitte e Legrande, de que as crianças que fazem uso do humor têm melhores competências sociais, Del Ré critica a imposição sem nuances, pela escola, de padrões de linguagem, à medida que as crianças crescem. Tal imposição - necessariamente acrítica - minaria aos poucos a capacidade de produção linguística criativa e natural das crianças até seu desaparecimento, para prejuízo de futuras conceituações e efabulações oriundas do Imaginário. O trabalho defende que impor à criança cedo demais padrões transmitidos como sérios e indiscutíveis é como colocar uma venda em seus olhos e privá-la de se tornar mais ativa e principalmente mais criativa, capaz de manipular e reutilizar o humor cotidiano - algo que a escola deveria estimular, e não coibir.
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OBJECTIVE: To verify the existence of fungal contamination prior to and following the cleaning and disinfection process of hospital mattresses used by patients with Candidemia. METHODS: Cross-sectional study analyzing 25 mattresses used by patients with Candidemia confirmed by blood culture from different hospital wards. The study made use of convenience samples. After growing the samples in an Agar Sabouraud Dextrose environment, isolated yeasts were identified by macroscopic, microscopic and physiologic characteristics. RESULTS: Analyses showed 15 (60%) mattresses contaminated by Candida spp. From these, 10 (66.7%) and five (33.3%) mattresses corresponded respectively to the collection prior to and following disinfection, with Candida parapsilosis being the isolated species with the highest frequency. CONCLUSION: Considering that half of the mattresses remained contaminated after cleaning and disinfection, there is a risk that these mattresses may act as potential secondary reservoirs in the infection chain.
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This study, of theoretical nature, aims to analyse some propositions of Historic and Cultural psychology about human psyche, especially regarding the constitution of affective processes in relation to child development. Therefore, brings together some principles of Spinozist philosophy that underlie the Vigotskian thought about affections and postulates that, for this school of psychology, on the basis of human development are the social experience and subject-object relation, constitutive of cognitive and affective processes. The analyses developed over the text indicate that social mediators - signs and instruments - subsidize the formation of activity and consciousness in a process that legitimizes the historic and social origin of affective functions. The paper aims to highlight the role of education as a privileged place of access to knowledge capable of transforming ways of thinking, feeling and acting of children through the processes of teaching and learning.
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Pós-graduação em Biologia Geral e Aplicada - IBB
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Cirurgia Veterinária - FCAV
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Pós-graduação em Geociências e Meio Ambiente - IGCE
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Pós-graduação em Química - IQ
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Pós-graduação em Química - IQ
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Pós-graduação em Saúde Coletiva - FMB
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This study, performed under a linguistic-discoursive prism, aimed to: (1) describe the moments in which occurred hesitations in the utterances of a psychotic child diagnosed with Language Disorder; and (2) determine the extent to which these moments (also) can indicate aspects of a subjectivity trying to emerge in this child. Data were extracted from a speech therapy session with a ten year old female child. Concerning the fi rst goal, from a total of 362 utterances produced by the child, only 74 (20%) had hesitation traces, while 288 (80%) did not. Concerning the second goal, the utterances with hesitation traces occurred in situations of: topic development, especially in the form of complementarity; introduction of new topic; return to the previous topic; refuses to the topic; enunciative incompleteness. The high percentage of utterances without hesitation traces (80%) is explained because they are highly predictable from the context, mostly in situations of ritualized adjacent pairs, oftentimes in situations of immediate specularity. The reduced percentage of utterances with hesitation traces are explained precisely by the fact that, unlike those without traces, in these ones, signs of a subjectivity that tries to emerge and show itself in the discourse production are detected. With the development of this study, we tried to emphasize the view at the hesitations as marks of subjectivity – in other words, evidences of confl icting relationships between the subject and the others that constitute the utter. The concern was also about bringing to the fi eld of Speech Pathology discoursive linguistic refl ections based on data extracted from symptomatic contexts of language.
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The syndrome of Gilles de la Tourette (ST) can cause marked distress in several areas of functioning. The literature indicates that children with TS may present diffi culties in relationships with teachers and peers. This case study exploration aimed to discover and describe the perceptions of parents and teachers of child with TS enrolled in regular school, regarding the child-school relationships. Interviews were conducted with parents of a 8 years-old child, diagnosed with ST and three educators. Participant observation of everyday children’s school was also performed. The set of reports reveals doubts on the part of respondents to identify involuntary behaviors of the child or to identify intentional actions. It was observed that there is still no connection between parents and educators in meeting the needs of the child. It is assumed that intervention strategies in a multidisciplinary perspective could help parents, educators and health care professionals act in a coordinated way in order to improve the school and social interaction of the child.