Spatial Functionality
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. Redes de fusíveis livres de escala para simulação de fratura em materiais compósitos
The study of fracture of composite materials has a distinguished relevance due the broad and ever increasing use of multiphase materials to attend specific needs and/or combine cost and functionality. Theoretical approach to the issue include simplified models, yet many times mathematically unfeasible, providing information of little practical use. As an alt
Publicado em: 2007
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14. A DATA MODEL FOR EXPLORATION OF TEMPORAL VIRTUAL REALITY GEOGRAPHIC INFORMATION SYSTEMS
Geographic information systems deal with the exploration, analysis, and presentation of geo-referenced data. Virtual reality is a type of human-computer interface that comes close to the way people perceive information in the real world. Thus, virtual reality environments become the natural paradigm for extending and enhancing the presentational and explorat
Publicado em: 2004
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15. Bancos de dados geográficos: uma análise das arquiteturas dual (Spring) e integrada (Oracle Spatial). / Spatial databases: an analyse of the architectures dual (Spring) e integrated (Oracle Spatial).
The spatial data complexity justifies the need to develop new spatial data types and to design new structures to store, to query and to handle spatially referenced data inside a database management system (DBMS). This work presents an analysis of these issues considering the different architectures of geographic databases. The Dual and Integrated arquitectur
Publicado em: 2002
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16. Positive and negative cis-acting DNA domains are required for spatial and temporal regulation of gene expression by a seed storage protein promoter.
Mutations affecting spatial and temporal regulation of a beta-phaseolin gene encoding the major storage protein of bean (Phaseolus vulgaris) were analyzed by stable and transient transformation approaches. The results substantiate the value of transient assays for rapid determination of the functionality of cis-acting sequences and the importance of stable t
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17. Localization of SV40 genes within supercoiled loop domains.
Recent studies indicate that eukaryotic DNA is organized into supercoiled loop domains. These loops appear to be anchored at their bases to an insoluble nuclear skeleton or matrix. Most of the DNA in the loops can be released from the matrix by nuclease digestion; the residual DNA remaining with the nuclear matrix represents sequences at the base of the loop
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18. The MADS Box Transcription Factor ZmMADS2 Is Required for Anther and Pollen Maturation in Maize and Accumulates in Apoptotic Bodies during Anther Dehiscence1
The maize (Zea mays) late pollen gene ZmMADS2 belongs to the MIKC type of MADS box transcription factor genes. Here, we report that ZmMADS2, which forms a homodimer in yeast (Saccharomyces cerevisiae), is required for anther dehiscence and pollen maturation. Development of anthers and pollen was arrested at 1 d before dehiscence in transgenic plants expressi
The American Society for Plant Biologists.
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19. Transmembrane Protein-free Membranes Fuse into Xenopus Nuclear Envelope and Promote Assembly of Functional Pores*
Post-mitotic reassembly of nuclear envelope (NE) and the endoplasmic reticulum (ER) has been reconstituted in a cell-free system based on interphase Xenopus egg extract. To evaluate the relative contributions of cytosolic and transmembrane proteins in NE and ER assembly, we replaced a part of native membrane vesicles with ones either functionally impaired by
American Society for Biochemistry and Molecular Biology.