Assessment of seismic performance of adobe structures in Pakistan and Portugal

Adobe buildings exist in different parts of the world. The construction of these buildings can be carried out economically, using locally available materials and skills that do not require use of modern machinery. Therefore, adobe buildings provide an economic housing option. The construction of adobe structures is carried out based on traditional construction practices which vary from region to region. This paper presents the results of a study which was conducted to study the construction practices of adobe buildings in Pakistan and Portugal in the context of their seismic vulnerability. The adobe buildings in both these countries were found to be subjected to seismic hazard levels which, although is low in some regions, may cause significant damages. Lack of essential elements or details for the adequate seismic performance was found in the adobe buildings in both regions

Avaliação do crescimento in vitro de brotos de abacaxi ornamental (Anonas lucidus Miller) em meio de cultura bifásico.

Este estudo foi realizado no Laboratorio de Cultura de Tecidos de Plantas da Embrapa Agroindustria Tropical , em Fortaleza,CE, e teve como objetivo avaliar o crescimento de brotos de abacaxi ornamental (Ananas lucidus Miller) em meio de cultura bifasico.bitstream/CNPAT-2010/5394/1/Pa-059.pd

Rural-urban migration in d-dimensional lattices

The rural-urban migration phenomenon is analyzed by using an agent-based computational model. Agents are placed on lattices which dimensions varying from d=2 up to d=7. The localization of the agents in the lattice define their social neighborhood (rural or urban) not being related to their spatial distribution. The effect of the dimension of lattice is studied by analyzing the variation of the main parameters that characterizes the migratory process. The dynamics displays strong effects even for around one million of sites, in higher dimensions (d=6, 7).Comment: 9 pages, 7 figures, to be published in International Journal of Modern Physics C 1

Attenuation and damping of electromagnetic fields: Influence of inertia and displacement current

New results for attenuation and damping of electromagnetic fields in rigid conducting media are derived under the conjugate influence of inertia due to charge carriers and displacement current. Inertial effects are described by a relaxation time for the current density in the realm of an extended Ohm's law. The classical notions of poor and good conductors are rediscussed on the basis of an effective electric conductivity, depending on both wave frequency and relaxation time. It is found that the attenuation for good conductors at high frequencies depends solely on the relaxation time. This means that the penetration depth saturates to a minimum value at sufficiently high frequencies. It is also shown that the actions of inertia and displacement current on damping of magnetic fields are opposite to each other. That could explain why the classical decay time of magnetic fields scales approximately as the diffusion time. At very small length scales, the decay time could be given either by the relaxation time or by a fraction of the diffusion time, depending whether inertia or displacement current, respectively, would prevail on magnetic diffusion.Comment: 21 pages, 1 figur

Análise do transcriptoma de arroz (Oryza sativa) cultivado sob déficit hídrico.

Neste trabalho analisamos a expressão dos genes relacionados à resposta ao déficit hídrido em tecido foliar de duas cultivares brasileiras de arroz de terras altas, a cultivar tolerante Douradão e a cultivar sensível BRS Primavera. Pela análise de RNA-seq foram identificados em Douradão 27.618 transcritos, sendo 24.090 (87,2%) homólogos ao banco de dados de arroz, enquanto que para BRS Primavera dos 27.221 transcritos 23.663 (86,9%) apresentaram homologia no banco de dados

Análise quantitativa da proteína total de reserva do grão em acessos de arroz irrigado da coleção nuclear da Embrapa (CNAE).

Este trabalho objetivou quantificar a proteína total de reserva de 186 acessos com sistema de cultivo irrigado da CNAE e observar se estes acessos apresentam variabilidade em relação ao teor protéico

Labor Activities and Occupational Health in Brazilian Swine Production – A Case Study

Swine production is an important business in Brazil with 2.5 million sows, and in this economic sector there is large concentration of workers performing both manual and mechanical tasks exposed to numerous labor risks and accidents. Very few ergonomic studies have been done in Brazilian commercial animal production activities. This research aimed to evaluate the symptoms found by swine production workers, relating them with the worker’s age and time involved in specific task. A questionnaire was prepared seeking the evaluation of the working environment as well as the worker’s life quality, by analyzing any complaint and/or symptom related or found during the research. Twenty five individuals who worked eight hours daily in commercial swine housing were selected randomly to answer the questionnaire. Ages varied from 16 to 60 years old and related to gender, 68% were male and 32% were female. The research was carried out in a commercial swine production facility in the state of São Paulo, Brazil. Data were registered and organized, and Fishers tests and Odds Ratio were used for statistical analysis in order to evaluate associations between worker’s age, duration of employment, and selected symptoms. The results showed that work within swine production in Brazil did not represent a risk for worker health. A positive correlation was found between physical fatigue and young workers, apparently because their muscular development is not adapted to the activity. A negative correlation between physical fatigue and the duration of employment performing a certain function was also found

Substituição do milho pelo sorgo sacarino em rações de frangos de corte.

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