Sequential Patterns
Mostrando 13-24 de 186 artigos, teses e dissertações.
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13. Temporal and spatial variability of rainfall and water balance in the state of Rondônia, Brazil: characterization tendency analysis / Variabilidade temporal e espacial das chuvas e do balanço hídrico no estado de Rondônia: caracterização e análise de tendência
Amazon deforestation rate has been significant, resulting in a great concern about the effect that the reduction of the forest can have on the climatic dynamics in this region, as well as in other brazilian locations. In such context, the present work aimed to verify if the current rate of deforestation in Rondônia, last 30 years has been contributed for ch
Publicado em: 2009
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14. Estoque e qualidade da matéria orgânica do solo em áreas cultivadas com café sob sistemas agroflorestal e a pleno sol / Soil organic matter stock and quality in agroforestry and full sun coffee systems
Soil organic matter (SOM) restoring is considered a main goal in the enhancement of soil quality. The evaluation of changes in the SOM as a result of soil management practices is fundamental to identify strategies to increase agricultural production, avoiding soil degradation and decreasing the emission of greenhouse gases. In Brazil, no-tillage has been bro
Publicado em: 2009
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15. VISTREE: uma linguagem visual para análise de padrões arborescentes e para especificação de restrições em um ambiente de mineração de árvores
The frequent pattern mining in data represented by more complex structures like trees and graphs are growing lately. Among the reasons for this improvement is the fact that the tree and graph patterns has more information than sequential patterns, besides there is the possibility of usage of this type of mining in several areas like XML Mining,Web Mining and
Publicado em: 2008
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16. Mineração de padrões temporais híbridos especificados na lógica temporal de intervalos
Discovering frequent patterns in databases is an important problem for knowledge discovery and its importance is justified by the diversity of areas where it can be used, such as retail, financial market, medicine, agriculture, farming, telecommunications, etc. The problem of mining frequent patterns in temporal databases, also know as mining temporal patter
Publicado em: 2007
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17. CONSTITUINTES VOLÁTEIS E ATIVIDADE ANTIMICROBIANA DE Senecio crassiflorus (Poir.) DC. var. crassiflorus / VOLATILE CONSTITUENTS AND ANTIMICROBIAL ACTIVITY OF Senecio crassiflorus (Poir.) DC. var. crassiflorus
Several Senecio species (Asteraceae) have been used in folk medicine for the treatment of infections. This genus is rich in a wide variety of secondary metabolites such as alkaloids, flavonoids, and terpenoids with recognized antimicrobial activity. Senecio crassiflorus (Poir.) DC. var. crassiflorus, commonly known as margarida-das-dunas, is native from the
Publicado em: 2007
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18. MineraÃÃo de padrÃes temporais hÃbridos especificados na lÃgica temporal de intervalos
A descoberta de padrÃes freqÃentes em bancos de dados constitui um importante problema do domÃnio da descoberta de conhecimentos e sua importÃncia à justicada pela diversidade de Ãreas onde pode ser empregada, como no varejo, no mercado nanceiro, na medicina, na agricultura, na agropecuÃria, em empresas de telecomunicaÃÃes, etc. O problema de minera
Publicado em: 2007
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19. Optimization procedures for establishing reserve networks for biodiversity conservation taking into account population genetic structure
Conservation genetics has been focused on the ecological and evolutionary persistence of targets (species or other intraspecific units), especially when dealing with narrow-ranged species, and no generalized solution regarding the problem of where to concentrate conservation efforts for multiple genetic targets has yet been achieved. Broadly distributed and
Genetics and Molecular Biology. Publicado em: 2006
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20. A study on activities observed during interresponse time / Um estudo sobre as atividades nas quais sujeitos se engajam durante o intervalo entre respostas que produzem reforço
This study was an attempt to investigate possible relations between responding that is reinforced according to schedules based on a temporal parameter and performing other activities to which no reinforcement contingencies are programmed. These activities have been called adjunctive behavior, collateral behavior or interim activities. Two questions guided th
Publicado em: 2006
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21. Morpho-functional characteristics of sex reversal in Synbranchidae (Teleostei: Synbranchiformes) / Perfil morfo-funcional da inversão de sexo em Synbranchidae (Teleostei: Synbranchiformes)
Teleost fishes exhibit several sexual patterns during their ontogeny, in which the gonads change into functional ovaries or testes. In distinct Orders, both gonochoristic and hermaphrodite species, simultaneous as well as sequential or consecutive, can be found. In sequential hermaphroditism (protandrous or protogynous), sex change in adult individuais invol
Publicado em: 2006
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22. Neutrophil transepithelial migration: role of toll-like receptors in mucosal inflammation
The symptomatic phases of many inflammatory diseases are characterized by migration of large numbers of neutrophils (PMN) across a polarized epithelium and accumulation within a lumen. For example, acute PMN influx is common in diseases of the gastrointestinal system (ulcerative colitis, Crohn's disease, bacterial enterocolitis, gastritis), hepatobiliary sys
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-03
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23. Modelo não-linear para minimizar o numero de objetos processados e o setup num problema de corte unidimensional / Nonlinear model to minimize both the number of processed objets and the number of setups in an cutting stock problem
In this work we introduce a new method to minimize both the number of processed objects and the number of nonzeros cutting patterns (Le., setup) in an one-dimensional cutting stock problem. To do so, we smooth the discontinuous nonlinear function used in Haessler(1975) to represent both objectives: the number of objects and setup number. To generate the cutt
Publicado em: 2005
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24. Nonparametric change point detection algorithms and applications in data networks.
Nonparametric change point detection algorithms have been applied in intrusion detection problems and network management. Specifically, applications considering denial of service detection and traffic control are focused in this work. The algorithms studied are inspired by the CUSUM (Cumulative Sum) and SP (Shiryaev-Pollak) parametric procedures. New nonpara
Publicado em: 2004