30 research outputs found

    Inorganic solid wastes from agrosilvopastoral sector in Ceres, Goiás, Brazil

    Get PDF
    This study aimed to verify the application of available legislation about to the production, quantity and appropriate disposal of inorganic solid wastes from agrosilvopastoral activities in Ceres/GO. The research had a descriptive character, with bibliographic, documentary and field research methods, based on quali-quantitative approaches, and the gathering of primary and secondary data. The data were extracted from official records and websites, including information of public and private institutions, and sourced by professional entities and associations responsible for collection, sorting, recycling and final disposal of solid wastes. On the basis of the obtained information, although Ceres/GO city has a small rural population, it was considered as good study model. The efforts and experiences carried out in Brazil and different countries gives us insights to understand and propose solutions related to the waste management from agrosilvopastoral system in Ceres/GO, which may be expanded into other Brazilian cities.Este estudo teve como objetivo verificar a aplicação da legislação disponível, quanto à produção, quantidade e disposição adequada de resíduos sólidos inorgânicos de atividades agrossilvipastoris em Ceres/GO. A pesquisa teve caráter descritivo, com métodos de pesquisa bibliográfica, documental e de campo, com base em abordagens quali-quantitativas e coleta de dados primários e secundários. Os dados foram extraídos de registros e sítios oficiais, incluindo informações de instituições públicas e privadas, e obtidos por entidades e associações profissionais responsáveis pela coleta, triagem, reciclagem e disposição final de resíduos sólidos. Baseado nas informações obtidas, a cidade de Ceres/GO, embora tenha uma pequena população rural, foi considerada um bom modelo de estudo. Os esforços e experiências realizados no Brasil e em diferentes países fornecem subsídios para entender e propor soluções relacionadas à gestão de resíduos do sistema agrossilvipastoril de Ceres/GO, que podem ser expandidas para outras cidades brasileiras.

    ANÁLISE DO DESEMPENHO E DA VIABILIDADE TÉCNICA E ECONÔMICA DO SISTEMA LIGHT STEEL FRAMING PARA CONSTRUÇÃO DE RESIDÊNCIAS POPULARES

    Get PDF
    O Light Steel Framing (LSF) é um sistema construtivo que enfrenta preconceitos em seu desenvolvimento, mas tem muito a oferecer. Comparado com a alvenaria convencional, apresenta um custo geral menor, oferece os mesmos benefícios e tem tempo de construção menor, até menos da metade do outro (cerca de 47%). Em termos de desempenho, de acordo com a ABNT NBR 15.575, o LSF cumpre com o requisitado, podendo se adaptar aos diferentes critérios solicitados. Pode ser aplicado em diversas edificações, inclusive em conjuntos habitacionais, já existindo exemplos de aplicação nesse sentido, conforme apresenta-se no decorrer deste trabalho

    The plasticity of non-crystalline solids: aluminum phosphate white pigments

    Get PDF
    A new white pigment made out of nano-structured non-crystalline aluminum phosphate was recently launched as an industrial product. Pigment opacifying properties are not intrinsic to aluminum phosphate but they arise as the result of a rare hollow particle nano-structure. This is in turn derived from the core-and-shell structure of amorphous aluminum phosphate precipitated under well-defined conditions. The new pigment is a product of the often neglected chemistry of non-crystalline ionic solids that can probably be a rich source of new successful products. The text describes a short account of the R&D activities, from the initial ideas to the present.745748Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

    Acute Trigeminal Nerve Neuritis in German Shepherd

    Get PDF
    Background: Trigeminal nerve is composed by ophthalmic, maxillary and mandibular portion, presenting sensory and motor functions. Its most common conditions include vascular, neoplastic, infectious and inflammatory causes. Neuritis is an inflammation caused by a primary nerve injury that can progress to demyelination and even degeneration of nerve fibers. The present report aims to describe an unusual case of a female dog, German Shepherd breed, with acute manifestation of trigeminal nerve neuritis whose etiology may be associated with erlichiosis, since infection with Ehrlichia spp. through serological test was verified.Case: A 3-year-old female German Shepherd , weighing 26.8 kg and not neutered, was attended at Veterinary Hospital Dr. Halim Atique - UNIRP, São José do Rio Preto, SP, Brazil presenting apathy, sialorrhea and polydipsia for seven days. The tutor reported an episode of foamy and yellowish vomit three days ago and ixodidiosis last week. Physical examination revealed flaccid open-mouthed posture, with mild bilateral masseter and moderate temporal muscle atrophy. Water was offered to the animal and it was observed that it could not properly seize, confirming a false polydipsia. The neurological examination revealed a slight decrease in head sensitivity, difficulty in chewing and seizure of food. It was not observed alterations in the other pairs of cranial nerves or other neurological parameters (postural reactions and spinal reflexes), and the diagnose of bilateral dysfunction of the trigeminal nerve was based on the affected neuroanatomic region. On neurological examination, other lesions of the nervous system were ruled out, suggesting an isolated manifestation of the trigeminal nerve. CBC revealed anemia, intense thrombocytopenia and leukocytosis by neutrophilia. Radiographic examination ruled out the possibility of trauma due to the absence of mandible fracture and also temporomandibular joint alterations. Masseter and temporal muscle biopsy were performed, and myositis or other masticatory muscle alterations were discarded among the diagnostic possibilities. Serological tests showed non-reactive results for toxoplasmosis and neosporosis, but reagent for Erlichia spp.Discussion: Idiopathic trigeminal neuritis (ITN) has an unknown etiology, but is not related to signs of systemic disease, and is usually not associated with deficits in other cranial nerves. The main clinical sign related to this condition is acute jaw paralysis, with inability to close the mouth, and in some cases is observed sensitivity deficits in face, as observed in the dog of this report during the neurological examination. In the patient of the present report, no justifiable causes were found for the presented symptoms, except the presence of erlichiosis. The treatment was based on the use of prednisone, doxycycline, antioxidants and vitamin complex. Response to treatment was satisfactory after seven days, and complete remission of clinical signs occurred nine days after its onset. Although cranial nerve neuritis is an uncommon clinical manifestation of erlichiosis, the patient in this study presented a good response to the treatment instituted, suggesting that erlichiosis is an important differential diagnosis for neuritis

    Planejamento, sintese, caracterização e estudos da atividade de optica não-linear de clusters organometalicos

    No full text
    Orientador : Maria Domingues VargasTese (doutorado) - Universidade Estadual de Campinas, Instituto de QuimicaDoutorad

    Electronic interactions in [Ru3(mu3-R² CCC6H4-4-R¹)(mu -dppm)(mu-CO) (CO)7] (R¹ = NO2 and R² = Fc; R¹ = NO2, CN and R² = Ph)

    No full text
    The co-ordination of FcCCC6H4-4-NO2 (1) to a ruthenium carbonyl cluster to yield [Ru3(mu 3-FcCCC6H4-4-NO2) (mu-dppm)( mu-CO)(CO)7] (2) is reported. The cyclic voltammograms of these compounds and of the analogous clusters [Ru3(mu3 -eta2-C6 H5CCC6H4-4-R)(mu -dppm)(mu -CO)(CO)7] (R= H, 3; CN, 4; NO2, 5) allowed an evaluation of the electronic communications between the different redox sites (ferrocenyl and -NO2 groups, and Ru3 moiety) and an analysis of the relative electron donor-acceptor capabilities of each of the three redox centres that compose 2. Furthermore, the inertness of 2, compared with clusters 3-5 which loose CO readily was attributed to the interaction between the ferrocenyl group and the metallic frame

    Electronic interactions in [Ru3(mu3-R² CCC6H4-4-R¹)(mu -dppm)(mu-CO) (CO)7] (R¹ = NO2 and R² = Fc; R¹ = NO2, CN and R² = Ph)

    No full text
    The co-ordination of FcCCC6H4-4-NO2 (1) to a ruthenium carbonyl cluster to yield [Ru3(mu 3-FcCCC6H4-4-NO2) (mu-dppm)( mu-CO)(CO)7] (2) is reported. The cyclic voltammograms of these compounds and of the analogous clusters [Ru3(mu3 -eta2-C6 H5CCC6H4-4-R)(mu -dppm)(mu -CO)(CO)7] (R= H, 3; CN, 4; NO2, 5) allowed an evaluation of the electronic communications between the different redox sites (ferrocenyl and -NO2 groups, and Ru3 moiety) and an analysis of the relative electron donor-acceptor capabilities of each of the three redox centres that compose 2. Furthermore, the inertness of 2, compared with clusters 3-5 which loose CO readily was attributed to the interaction between the ferrocenyl group and the metallic frame.A coordenação de FcCCC6H4-4-NO2 (1) a uma carbonila polinucleada (cluster) de rutênio resultou na formação de [Ru3(mi3 -FcCCC6H 4-4-NO2)(mi -dppm)(mi-CO)(CO)7] (2). Os voltamogramas cíclicos destes compostos e dos clusters análogos [Ru3(mi3 -eta2-C6 H5CCC6H4-4-R)(mi -dppm)(mi -CO)(CO)7] (R= H, 3; CN, 4; NO2, 5) permitiram avaliar as comunicações eletrônicas entre os diferentes sítios de oxi-redução (grupos ferrocenil e -NO2 e o fragmento Ru3) e analisar as capacidades relativas doadora-receptora de cada um dos três centros de oxi-redução que compõem 2. Além disto, a inércia de 2, em comparação com os clusters 3-5, os quais sofrem fácil perda de CO, foi atribuída à interação entre o grupo ferrocenil e a base metálica.710Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
    corecore