Morphology and anatomy of inflorescence and inflorescence axis in Paepalanthus sect. Diphyomene Ruhland (Eriocaulaceae, Poales) and its taxonomic implications

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Chromosome banding patterns of four species of bats, with special reference to a case of X-autosome translocation

The karyotypes of 4 species of bats, Artibeus lituratus (Phyllostomatidae), Pipistrellus pipistrellus (Vespertilionidae), Pteropus alecto and P. giganteus (Pteropodidae), were studied after several banding techniques. For A. lituratus, in which an X-autosome translocation was observed, an analysis of the replication pattern in the rearranged chromosome was also made after BrdU incorporation.

O uso de bambu e metal clay no design de jóias de arte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise dos impactos na construção civil: avaliação do ciclo de vida em chapas de partículas para forros

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Projeto bambu: introdução de espécies, manejo, caracterização e aplicações

Este trabalho faz parte das exigências relativas a obtenção do título de livre docente na Universidade Estadual Paulista-Unesp. O projeto foi iniciado em 1994 com a introdução de espécies de bambu no campus local da Unesp visando o fornecimento de matéria-prima/colmos conhecida para estudos. Num processo contínuo, o projeto vem se desenvolvendo tecnicamente através de várias atividades ligadas a cadeia produtiva desta planta, envolvendo o acompanhamento do desenvolvimento das espécies, seu manejo, colheita, produção de mudas, tratamento, processamento, caracterização e aplicações. Estabelecido na Faculdade de Engenharia, o projeto naturalmente se aproximou das áreas de design e arquitetura, sendo estabelecida numa relação com estes cursos nos níveis de graduação e pós-graduação, com a participação e formação de alunos. Com aspecto multidisciplinar o projeto também procurou atuar na extensão universitária e na inserção social procurando transferir os conhecimentos adquiridos para a sociedade. Justifico a extensão do trabalho e o grande número de tabelas (deslocadas para os Anexos) e figuras mostrados pois na verdade o projeto procura mostrar a atuação em várias atividades: plantio de espécies, produção, manejo e acompanhamento do desenvolvimento, caracterização, processamento e desenvolvimento de produtos e aplicações, relação com alunos de graduação, pós-graduação e atividades de extensão. Relativamente ao trabalho de campo, foram introduzidas diversas espécies de bambu, sendo mostrados os dados de desenvolvimento, manejo e produção para duas delas, as espécies Dendrocalamus giganteus e Guadua angustifólia, ambas prioritárias, de fácil cultivo e produção de mudas e largamente utilizadas. Relativamente ao trabalho de laboratório, os colmos foram processados...

Some Physical and Mechanical Properties of Medium-Density Fiberboard Made from Giant Bamboo

The objective of this study was to evaluate the density, density profile, water swelling and absorption, modulus of elasticity and rupture from static bending, and tensile strength of experimental medium-density fiberboards manufactured using Dendrocalamus giganteus (Munro bamboo). The fiber production was carried out through the chemo-thermo-mechanical pulping process with four different conditions. The panels were made with 10% urea formaldehyde resin based on dry weight of the fibers, 2.5% of a catalyzer (ammonium sulfate) and 2% paraffin. The results indicate that treatments with the highest alkali (NaOH) percentage, time and splinter heating temperature improved the physical properties of the panels. The root-fiber interface was evaluated through scanning electron microscopy in fracture zones, which revealed fibers with thick, inflexible walls. The panels' mechanical properties were affected due to the fiber wall characteristics and interaction with resin. Giant bamboo fiber has potential for MDF production, but other studies should be carried out.

Physical and mechanical properties of particleboard bamboo waste bonded with urea formaldehyde and castor oil based adhesive

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo comparativo de dois tipos de painéis de MDP: com adição de papel impregnado e lâminas de bambu

This work is the production of two types of particle boards reconstructed MDP (Medium Density Particleboard), the first with the addition, in the inner layer of particles of impregnated paper, the ratios of 0%, 1%, 5% and 20 %. In the second type of panel MDP was inserted with blades of bamboo species Dendrocalumus giganteus as coatings and structural reinforcement. The MDP panel, used as a basis for both cases has the composition of three layers, two external particles with smaller particle size and an inner layer composed of particles of larger particle sizes. Assays were performed based on physical and mechanical NBR 14.810/2006 for the determination of the board density, thickness swelling, water absorption, moisture content, bending, tension parallel and perpendicular, and testing of particle sizes of the particles did not exists in standard references. The results were analyzed and compared the results of the commercial boards made from 100% eucalyptus, based on the limits specified by the ABNT NBR 14.810/2006. The values of the tests showed similar results indicating normative specifications in a positive way, the possibility of production of MDP with the use of waste paper impregnated. As for the panel with bamboo blades, the tests showed a mechanical performance far superior to MDP market, explaining the study and possible implementation of the bamboo for use where the MDP will suffer greater mechanical stress, such as doors, tops and benches tables

Estudo de compósitos de madeira com reforço em bambu para utilização em mobiliário

Bamboo has been studied because of its peculiar mechanical properties and numerous possibilities of use, besides being a fast-growing grass and short cutting cycle. This study aimed to analyze the mechanical characteristics of wood-bamboo composite material, where the samples were developed from the combination of layers of bamboo as a structural reinforcement in solid pieces of pine and EGP panel parts. The species of wood used was Pinus taeda, and the bamboo species Guadua angustifolia and Dendrocalamus giganteus. All work was conducted at the Universidade Estadual Paulista - UNESP in the laboratory of Physical and Mechanical Properties of Wood. Tests including the density and tension parallel to grain of the bamboo species used and the static bending of composites in order to use this in the furniture industry. For the tests have been used as a basis the requirements of the normative document NBR 7190/97. The values obtained in the tests showed a significant increase in strength and stiffness compared to unreinforced parts, where there was an increase in MOE and MOR in static bending in all specimens used in evidence. The results showed the possibility of reducing sections in furniture components and the possibility of improving the mechanical properties of parts with defects found in wood of Pinus Itapeva region of São Paulo

Quantification of Flavonoids, Naphthopyranones and Xanthones in Eriocaulaceae Species by LC-PDA

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Medium density particleboard reinforced with bamboo laminas

The objective of this work was to evaluate the effect of the addition of bamboo laminas of the species Dendrocalamus giganteus to three-layer medium density particleboard (MDP). These laminas were glued onto both the top and the bottom of each panel. With the manufactured panels laminated with bamboo, mechanical tests based on the Brazilian Standard ABNT NBR 14810 were carried out to determine the modulus of rupture (MOR) in static bending and the tensile strength parallel-to-surface. These mechanical tests were realized in particleboards of eucalyptus and in reinforced particleboard, both produced in the laboratory. The modulus of rupture and tensile strength parallel-to-surface of the laminated MDP had values close to those that have been reported. The reinforcements increased the values of these studied properties. Nevertheless, this fact indicated the possibility to produce a stronger MDP using bamboo lamina as surface layers. These results show the possibility of using coatedbamboo MDP for utilization in large spans, for example, in flooring for mezzanines with finish on both sides, and for robust furniture as bookshelves, beds, tables, etc.

Constructed Wetland for Treating Effluent from Subtropical Aquaculture Farm

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Two new species of the feather mite genus Analloptes (Trouessart, 1885) (Acariformes: Astigmata: Xolalgidae) from passerines (Aves: Passeriformes) in Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Caracterização físico-mecânica de painéis de partículas de bambu com adição de casca de café

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uso de wetland construído no tratamento de efluente de ranicultura

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)