The Density-Dependent Correlations among Observables in Nuclear Matter and Hyperon-Rich Neutron Stars

The conserving σ-ω-ρ mean-field approximation with nonlinear interactions of hadrons has been applied to examine properties of nuclear matter and hyperonic neutron stars. The nonlinear interactions that will produce density-dependent effective masses and coupling constants of hadrons are included in order to examine density correlations among properties of nuclear matter and neutron stars such as binding energy, incompressibility, K, symmetry energy, a4, hyperon-onset density, and maximum masses of neutron stars. The conditions of conserving approximations in order to maintain thermodynamic consistency to an approximation are essential for the analysis of density-dependent correlations

Thermodynamical consistent CJT calculation in studying nuclear matter

We have attempted to apply the CJT formalism to study the nuclear matter. The thermodynamic potential is calculated in Hartree-Fock approximation in the CJT formalism. After neglecting the medium effects to the mesons, the numerical results are found very consistent with those obtained from the mean field calculation. In our calculation the thermodynamical consistency is also preserved.Comment: 9 pages, 6 figure

Urban Interventions: Architecture as a mechanism of inclusion

In the rapidly urbanizing world, it may seem normal to hear that while only 2% of the earth's surface is occupied by cities, 53% of the world's population lives in cities. What may seem alarming however is the fact that of that 53%, 33% of city dwellers today actually live in slums. To place matters into a more unsettling perspective, it is estimated that by 2030 over 2 billion people will live in slums. With this comes a sense of urgency: how do we respond as architects to these realities? The context of this thesis is based on what Jorge Jauregui calls the broken city: that is, the "tension between the so-called `formal' urbanization and `informal' areas of uncontrolled sprawl." This realization makes the possibility of interventions in these types of places particularly complex: how does design adapt to the logics that exist in place while allowing for a more connected city? Can architecture act as a mechanism of inclusion rather than exclusion, thus extending the right to the city to all? This thesis therefore investigates the various means by which architecture and urban infrastructure might be introduced into an urban informal settlement in Buenos Aires with minimal disruption of the "logics" of the place

Qualidade das Águas Subterrâneas em Aquífero Sedimentar do Tipo Livre em Área Fertirrigada com Efluente de Suinocultura em São Gabriel do Oeste, MS

Uma das aplicações do efluente suíno tratado é como biofertilizante em culturas vegetais, com melhoria da fertilidade do solo a um baixo custo. Entretanto, na saída do biodigestor o efluente pode apresentar metais pesados, geralmente incorporados na ração animal. Estes metais são elementos potencialmente tóxicos à saúde humana em elevadas concentrações, podem acumular no solo e lixiviar para as águas subterrâneas. Neste trabalho foram analisadas as concentrações de arsênio (As), cádmio (Cd), chumbo (Pb), cobre (Cu), cromo (Cr), ferro (Fe), manganês (Mn), selênio (Se) e zinco (Zn), além dos parâmetros hidroquímicos básicos na água do Aquífero Cenozoico, localizado no Assentamento Campanário, em São Gabriel do Oeste, no Mato Grosso do Sul, em área submetida a esta tecnologia. A presença no local de argilossilicatos, oxihidróxidos e matéria orgânica favoreceram a menor mobilidade de alguns metais; entretanto, o efluente suíno potencializou a mobilidade no solo do As, Fe e Mn alcançando a água do aquífero sedimentar do tipo livre.

O que é a literatura?

Neste ensaio, a pergunta fundamental dos estudos de literatura é posta em questão. O objetivo é tentar explorar as funcionalidades da literatura quando são evocados os “tempos autoritários”. Afinal, dizem que é sobretudo nestes momentos que se desponta na literatura o seu papel humanista de combate à “barbárie”. Mas o que de fato isso quer dizer numa sociedade que se caracteriza mesmo por atualizar ou produzir novas formas de subalternizar quem é excluído da norma, da identidade