The focus of this study is the property rights theories tested in the context of Modern China’s rural areas. It is divided into three parts: Part I presents the theoretical framework, concepts. These form the analytical tools. Part II briefly describes the three big transformation of rural arable land ownership in modern China. This is a particular case in which the theoretical framework can be tested. In Part III of this study I apply the analytical framework developed in part I to understand the puzzles and problems described in part II. This is the application of theory to the history and reality. In this research, I show that the change of property rights is central to political, economic and social change in that particular society. As a formal institution, property rights provide an incentive or disincentive structure for a particular economy. The contrasting economic performance in modern China’s agriculture can be well explained by the underlying force— the property rights institutional arrangement. The stagnation and decline of Chinese economy and universal poverty is conditioned by the disincentive structure of the Commune System. While the specular economic growth and its relief of poverty is driven by the incentive structure of the Household Responsibility System (HRS). The success of the HRS is in that it is not only a government institutional arrangement but also a communal institutional arrangement in its origin. The rules created by the peasants themselves are legitimized by the central government as property rights. It really matter who creates the property rights and for whom. This research attempts to enrich our knowledge in social science. It challenges the conventional and standard political and economic theory used to explain Chinese puzzles in its economic growth and social development. In the theoretical sphere, it contributes mainly to the literature of Marx’s theory of property, Honoré’s concept of ownership and Ostrom’s theory of common-pool resources and institutional change. In the practical sphere, it contributes to our understanding of the radical and complex change in Modern China’s rural areas.

We give an explicit description of the Loday assembly map on homotopy groups when restricted to a subgroup coming from the Atiyah-Hirzebruch spectral sequence. This proves and generalises a formula about the Loday assembly map on the first homotopy group that originally appeared in work of Waldhausen. Furthermore, we show that the Loday assembly map is injective on the second homotopy groups for a large class of integral group rings. Finally, we show that our methods can be used to compute the universal assembly map on homotopy.

There has been in the past ten to fifteen years a surge of activity concerning the cohomology of semi-direct product groups of the form $\mathbb{Z}^{n}\rtimes$G with G finite. A problem first stated by Adem-Ge-Pan-Petrosyan asks for suitable conditions for the Lyndon-Hochschild-Serre Spectral Sequence associated to this group extension to collapse at second page of the Lyndon-Hochschild-Serre spectral sequence. In this thesis we use facts from integer representation theory to reduce this problem to only considering representatives from each genus of representations, and establish techniques for constructing new examples in which the spectral sequence collapses.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / In the present study, using the Generalized Integral Transform Technique (GITT), we derive a semi-analytical solution of the Navier-Stokes equation to obtain the mean wind profile in the atmospheric boundary layer. The technique combines series expansion and an integration employing an inverse-transform pair. The PBL is discretized into N sub-intervals in such manner that inside each sub-region the eddy diffusivity is the average value, this allows the use of realistic eddy diffusivity profiles, which depend on the physical characteristics of the energy-containing eddies. The nonlinear terms are written in terms of kinematical properties of the flow, such as divergence and vorticity, allowing the solutions to be interpreted in terms of large-scale synoptic conditions. The model results are compared to observed wind profiles obtained from the classical Wangara experiment. In addition, the results obtained by the proposed model are compared with the unidimensional model solved by the method of discretization, the model of two layers, with the logarithmic law and the Ekman model. The method used was efficient for the problem studied, since it has presented results consistent with those available in literature. / No presente estudo, usando a Técnica da Transformada Integral Generalizada (GITT), deriva-se uma solução semianalítica para as Equações de Navier-Stokes aplicada à Camada Limite Planetária (CLP). A técnica combina uma expansão em série com uma integração por meio de um par de transformada-inversa. A CLP é discretizada em N subintervalos de maneira que, dentro de cada sub-região, os coeficientes de difusão assumam valores médios, o que nos permite utilizar perfis mais realísticos para o coeficiente de difusão e que dependem das características dos turbilhões mais energéticos. Os termos não-lineares são escritos em função das propriedades cinemáticas do escoamento, como divergência e vorticidade, permitindo que a solução seja interpretada em termos das condições sinóticas de grande escala. O desempenho do modelo estudado foi comparado com dados experimentais de vento medidos durante os experimentos de Wangara. Adicionalmente, os resultados obtidos através do modelo proposto são comparados com o modelo unidimensional resolvido pelo método de discretização, com o modelo de duas camadas, com a Lei Logarítmica e com o modelo de Ekman. O método empregado mostrou-se eficiente para o problema estudado, uma vez que apresentou resultados coerentes com os disponíveis na literatura.

No description available.