Variabilidade espacial e disponibilidade de zinco em solos de Vinhedos e adjacências da região vitícola de Jundiaí, SP.

In this paper we evaluate spatial distribution of zinc concentration in soils by DTPA in areas cultivated with vineyard and adjacencies. Kriging techniques were efficient to study spatial distribution of zinc in soils. The results shows a spatial correlation between zinc concentration in soils and vineyards. This results reflects a possible contamination in soils by agrochemicals application

Algoritmo computacional para determinar o perfil mínimo de marcadores moleculares que discriminam um conjunto de cultivares.

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Produção de biomassa (folhas, caules, raízes e inflorescências), relação folha/caule e rendimento de 4-Nerolidilcatecol de Pothomorphe peltata Miq., em função de espaçamentos, nas condições de Manaus-AM.

O objetivo deste estudo foi avaliar o melhor arranjo espacial para caapeba submetida ao cultivo, nas condições de Manaus-AM

Produção de caapeba em função de arranjos espaciais.

Avaliou-se a produção de caapeba em função de seis espaçamentos (0,5 m x 0,5 m; 1,0 m x 0,5 m; 1,0 m x 1,0 m; 1,0 m x 1,5 m; 1,5 m x 1,5 m e 2,0 m x 2,0 m) nas condições de Manaus - AM. O estudo foi realizado na Embrapa Amazônia Ocidental, nos anos de 2004/2005

Planejamento de unidades de gestão diferenciada em projeto de manejo florestal sustentável na Amazônia.

Among the logging methods, the Exploration of Reduced Impact (ERI) is the one that brings most financial benefits to producers and to the environment due to the use of macro and micro forest planning techniques. The limitation of this method is the systematic techniques to planning the area, using analogic X,Y coordinate to locate trees and streams on the inventory process. With low accuracy to represent the physical environment and location of trees in production units results in a low operating efficiency and higher environmental interference. The purpose of this work is to integrate the forest planning considering environmental heterogeneity, integrating GNSS receiver, radar altimetric data (SRTM) and the hydrographic micro zoning. The study was done in Sena Madureira, state of Acre, Brazil From the inventory of 5.992 trees generated a volume raster and from the stream shape could be possible to construct the permanent protection area (APP). With this both information, using raster calculate processes, were created 4 unites of management areas. Each unit of management has differentiated intensive capacity to receive infrastructure of yard, road and skidtrail. The categories are: 0 to 60 volume m ³. ha-1, 60.01 to 90 m ³. ha-1, 90.01 to 120.00 m ³. ha-1 and 120.01 to 150 m ³. ha-1, discounting the areas of environmental protection and hydrography. Adopting additional information as volumetry, APPs and hydrographic micro zoning unit differentiated management of forest management in the Amazon

Importancia del hematoma en las fracturas de los hueso s largos: estudio experimental en ratas

Los autores han estudiado la importancia del hematoma en la consolidación de las fracturas de los hueso s largos. Para ello, han realizado un estudio experimental en 50 ratas Wistar, en las cuales se producía una fractura a nivel de sus tibias, siendo estabilizadas posteriormente, mediante agujas intramedulares. El hematoma era aspirado del foco de fractura en el miembro derecho, mientras que el miembro izquierdo servía como control. Los animale s fueron sacrificados tras diferente s periodos de tiempo, y el callo formado en las diferente s muestras ha sido analizado en relación a los aspectos radiológico y microscópico. Se pudo observar un predominio del tejido fibroso en el miembro control, y en aquellas muestras donde el hematoma había sido aspirado, predominaba tejido óseo y cartilaginoso.The authors studied the importance of the haematoma in the consolidation of fractures of long bones. It was performed an experiment in 50 Wistar rats that had their tibiae fractures and stabilized with intramedullary wires. The haetoma wa s aspired from the fracture site in the right limb whereas the left limbed served as control. The animals wer e sacrified in different periods of time , and the calli formed in the sample s wer e analysed in reltion to the radiological and microscopical aspects. It w a s observed a predominancy of fibrous tissue in the control limb and in the sample s wher e the haematoma was aspirated it was obtained a predominancy of cartilaginous and osseous tissue