318 research outputs found
Chemical and biological evaluation of rejects from the wood industry.
Este estudo visa a caracterização química e a avaliação da atividade antimicrobiana de extratos obtidos a partir de rejeitos resultantes do beneficiamento de madeiras nobres comercializadas no Paraná: Peroba-Rosa (Aspidosperma sp.), Roxinho (Peltogyne sp.), Jatobá (Hymenaea sp.), Curupixá (Micropholis sp.), Itaúba (Mezilaurus sp.), Cedrilho (Erisma sp.) e Imbúia-do-Norte (Licaria sp.), cujas identificações botânicas basearam-se em estudos anatômicos. Os extratos foram preparados com diversos solventes, analisados por CCD e espectrometria UV/VIS, testando-se contra: Proteus mirabilis ATCC15290, Escherichia coli ATCC25922, Enterobacter aerogenes ATCC13048, Staphylococcus aureus ATCC25923, Micrococcus luteus ATCC9341, Klebsiella pneumoniae ATCC13883, Pseudomonas aeroginosa ATCC27853, e Staphylococcus aureus, Streptococcus mutans e Bacillus cereus isolados da clínica. O extrato etanólico de Peroba-Rosa, contendo alcalóides, apresentou atividade contra P. mirabilis. Os extratos metanólicos do Jatobá, Itaúba e Imbúia, contendo fenóis, e o extrato de Roxinho obtido com acetato de etila contendo fenóis e terpenóides, foram ativos contra K. pneumoniae, M. luteus, E. coli, S. aureus e P. mirabilis. Nenhum dos extratos foi ativo contra P. aeroginosa, S. mutans e E. aerogenes
Road accidents with motorcycles among workers of a textile industry
Objective: To identify the profile of victims of road accidents with involvement of motorcycles among workers of a textile industry in the Rio Grande do Norte State. Method: This is a cross-sectional and descriptive study, with data collected from medical records and registrations from the company itself in the period from 2008 to 2009. Results: It has unveiled 81 cases of accidents with workers involving motorcycles, of which 62% were males, with higher incidence between 22 and 25 years; 69% needed removal equal to or less than 15 days; when the removal time was greater than 15 days, the average was 274,3 days; 71% suffered injuries on the lower and upper limbs. Conclusion: The recognition of these characteristics is useful to subsidize strategies for preventing motorcycle accidents and improving the reference emergency service
BRS Atalanta: alternativa para o uso racional da água nas lavouras de arroz irrigado do RS.
bitstream/item/30818/1/Circular-60.pd
Levantamento da ocorrência do moko da bananeira em Rondônia.
O presente trabalho visa apresentar dados sobre o levantamento da ocorrência do moko nos diferentes municípios do Estado de Rondônia, tendo como base as coletas de amostras de bananais, realizado pela Agência de Defesa Agrossilvopastoril de Rondônia ? Idaron, em parceria com a Embrapa Rondônia, entre os anos de 2004 e 2007.bitstream/CPAF-RO-2009-09/12208/1/cot323_mokodabananeira.pdfAngela M. L. Nunes, Embrapa Rondônia (In memorian)
Conceptualization of Dental Caries by Undergraduate Dental Students from the First to the Last Year
Collagen-Based Films Containing Liposome-Loaded Usnic Acid as Dressing for Dermal Burn Healing
The aim of this study was assess the effect of collagen-based
films containing usnic acid as a wound dressing for dermal burn
healing. Second-degree burn wounds were performed in forty-five
Wistar rats, assigned into nine groups: COL—animals treated
with collagen-based films; PHO—animals treated with collagen
films containing empty liposomes; UAL—animals treated with
collagen-based films containing usnic acid incorporated into
liposomes. After 7, 14, and 21 days the animals were euthanized.
On 7th day there was a moderate infiltration of neutrophils, in
UAL, distributed throughout the burn wounds, whereas in COL and
PHO, the severity of the reaction was slighter and still limited
to the margins of the burn wounds. On the 14th day, the
inflammatory reaction was less intense in UAL, with remarkable
plasma cells infiltration. On the 21st day, there was reduction of
the inflammation, which was predominantly composed of plasma cells
in all groups, particularly in UAL. The use of the usnic acid
provided more rapid substitution of type-III for type-I collagen
on the 14th day, and improved the collagenization density on the
21st day. It was concluded that the use of reconstituted bovine
type-I collagen-based films containing usnic acid improved burn
healing process in rats
Growth of silver nano-particle embedded in tellurite glass: interaction between localized surface plasmon resonance and 'Er IND.3+' ions
In this paper we show a systematic study of the growth of silver nano-particles (NPs) embedded in an Erbium-doped tellurite glass with annealing time, aiming to a photoluminescence enhancement. The results indicate an improved or quenching of the photoluminescence due to an energy transfer mechanism in the coupling between NP’s electric dipoles and Er+3 transitions (4S3/2 → 4I15/2, 4F9/2 → 4I15/2 and 4I13/2 → 4I15/2).FAPESPCNPqINCT - INOF/ CePO
Descrição histológica do escroto de caprinos nativos do Estado do Piauí, segundo o grau de bipartição escrotal
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