100块南极格罗夫山陨石的类型划分及其岩石学特征

根据岩石矿物学研究，包括岩石结构、橄榄石的Fa值和低钙辉石的Fs值以及金属模式含量等，100块格罗夫山陨石分别被划分为：4块H3型、11块H4型（其中一块为H4-an）、10块H5型、3块H6型、2块L3型、6块L4型、31块15型、32块L6型和1块LL4型。格罗夫山普通球粒陨石在类型分布上，其比例和南极以及非南极普通球粒陨石有显著不同，说明可能存在相当数量的成对陨石。分类陨石样品比较新鲜，其中98块陨石的风化程度为W1，仅有2块陨石风化程度分别为W2和W3。另外，这些陨石中冲击程度较高的样品占有一定比例，它们是研究冲击作用的理想样品。

程海沉积物无机碳、氧同位素相关性及其环境意义

程海是位于云南省西北部的一个较为特殊的湖泊，其矿化度已接近盐湖下限。湖泊沉积物无机碳、氧同位素组成敏感地记录了流域内环境变化的信息，其相关性有效地揭示了湖泊的封闭条件。组成的变化受到温度高低、降水大小、光合作用强弱、碳酸盐体系溶解平衡及水文条件等因素的控制。通过对该湖沉积物无机碳酸盐碳、氧同位素组成的研究，追溯了该流域内自采样深度以来的数十年内的环境变化情况，研究表明：程海流域气候变化有呈现出11-12a的小周期变化的趋势，但是在孔柱底部的信号噪声较大；沉积物碳酸盐δ^13Cδ^18O的良好相关性指示了程海近几十年内的水文封闭条件；并将碳、氧同位素这一环境敏感指标推广到了高矿化度的“准”咸湖的环境中。

个旧锡矿成矿热液活动的微量元素地球化学指示

通过对不同地质体中微量元素含量对比及因子分析，明确成矿热液活动元素，区分不同地球化学类型的元素集群。研究表明，成矿热液活动源于花岗岩岩浆侵位，花岗岩浆期后热液及地下水在岩体热力驱动下构成了一个系统的矿化热液活动体系，对区内地层产生广泛的蚀变影响，形成矿体、热液活动脉体及矿化热液 活动元素对围岩地层的改造。成矿热液活动体系为开放系统，运动方式以构造断裂导流为主，孔隙渗透为次。

壳幔混合及花岗质岩浆的形成

花岗岩成因与壳幔作用有着密切的联系,花岗岩成分不单来源于地壳, 还有地幔物质的参与,不同程度的壳幔混合可形成类型多样的花岗质岩石.本文简要总结了在俯冲作用、底侵作用、拆沉作用及地幔柱活动过程中花岗质岩浆的形成, 并对此类花岗岩的岩石学及地球化学特征进行了描述.鉴于此, 可初步判断花岗岩的形成是否与壳幔相互作用有关, 但还没有一种统一的模式能对其进行有效的解释.

7-12岁儿童执行功能与智力的关系

The nature of individual differences among children is an important issue in the study of human intelligence. There are close relation between intelligence and executive functions. Traditional theories, which are based mainly on the factor analysis, approach the problem only from the perspective of psychometrics. However, they do not study the relation of cognition and neurobiology. Some researchers try to explore the essential differences in intelligence from the basic cognitive level, by studying the relationship between executive function and intelligence. The aim of this study was to do the followings 1) to delineate and separate the executive function in children into measurable constructs; 2) to establish the relationship between executive function and intelligence in children; 3) to find out the difference and its neural mechanism between intellectually-gifted and normal children’s executive function. The participants were 188 children aged 7-12 year old. There were 6 executive function tasks. The results were follows: 1) The latent variables analyses showed that there was no stable construct of executive function in 7-10 year old children. The executive function construct of 11-12 year old children could be separated into updating, inhibition and shifting. And they had grown to be more or less the same as adults in the executive function. There were only moderate correlations between the three types of executive function, but they were largely independent of each other. 2) The correlations between the indices of updating, inhibition, shifting and intelligence were different in 7-12 year old children. The older the age, the more the indices were related to intelligence. The updating and shifting were related to intelligence in 7-10 year old children. There were significant correlations between the updating, inhibition, shifting and intelligence in 11-12 year old children. The correlation between updating and intelligence was higher than the correlation between shifting and intelligence. Furthermore, in structural equation models controlling for the three executive functions correlations, updating was highly related to intelligence, but the relations of inhibition and shifting to intelligence were not significant. 3) Intellectually-gifted children performed better than normal children in executive function tasks. The neural mechanism differences between intellectually gifted and average children were indicated by ERP component P3. The present study helps us to understand the relationship between intelligence and executive function; and throws light on the issue of individual differences in intelligence. The present results can provide theoretical support for the development a culture-free intelligence test and a method to promote the development of intelligence. Our present study lends support to the neural efficient hypothesis.

Recuperação de mata ciliar e reserva legal florestal no noroeste paulista.

2009

Sistema de informação de Espécies Forrageiras para a região Sul do Brasil: manual do usuário.

2007

Manual de manejo e utilização dos dejetos de suínos.

Caracteristicas principais dos dejetos; Principais técnicas de tratamento dos dejetos; Tratamento de dejetos nas pequenas e grandes propriedades produtoras de suínos; Técnicas de valorização dos dejetos suínos e seus produtos; Controle integrado de moscas nas criações de suínos; Técnicas construtivas em edificações para o aproveitamento dos dejetos.

Image Chunking: Defining Spatial Building Blocks for Scene Analysis

Rapid judgments about the properties and spatial relations of objects are the crux of visually guided interaction with the world. Vision begins, however, with essentially pointwise representations of the scene, such as arrays of pixels or small edge fragments. For adequate time-performance in recognition, manipulation, navigation, and reasoning, the processes that extract meaningful entities from the pointwise representations must exploit parallelism. This report develops a framework for the fast extraction of scene entities, based on a simple, local model of parallel computation.sAn image chunk is a subset of an image that can act as a unit in the course of spatial analysis. A parallel preprocessing stage constructs a variety of simple chunks uniformly over the visual array. On the basis of these chunks, subsequent serial processes locate relevant scene components and assemble detailed descriptions of them rapidly. This thesis defines image chunks that facilitate the most potentially time-consuming operations of spatial analysis---boundary tracing, area coloring, and the selection of locations at which to apply detailed analysis. Fast parallel processes for computing these chunks from images, and chunk-based formulations of indexing, tracing, and coloring, are presented. These processes have been simulated and evaluated on the lisp machine and the connection machine.