Bosonic String and String Field Theory: a solution using Ultradistributions of Exponential Type

In this paper we show that Ultradistributions of Exponential Type (UET) are appropriate for the description in a consistent way string and string field theories. A new Lagrangian for the closed string is obtained and shown to be equivalent to Nambu-Goto's Lagrangian. We also show that the string field is a linear superposition of UET of compact support CUET). We evaluate the propagator for the string field, and calculate the convolution of two of them.Comment: 30 page

The Rarita-Schwinger Particles Under de Influence of Strong Magnetic Fields

In this work, we calculate the solutions of the Rarita-Schwinger equation with the inclusion of the eletromagnetic interaction. Our gauge and coupling prescription choices lead to Dirac-type solutions. One of the consequences of our results are the Landau level occupation of particles, quite different from the usual spin 1/2 particle system occupation numbers.Comment: 12 page

Caracterização molecular de microorganismos do ecossistema agricola do cerrado. III. Acremonium strictum.

bitstream/CNPMS/16486/1/Com_69.pd

Caracterização molecular de microrganismos isolados do ecossistema agrícola do cerrado. I. Bactérias endofíticas do milho.

bitstream/CNPMS/16147/1/Com_66.pd

Caracterização molecular de microrganismos do ecossistema agrícola do cerrado. II. Colletotrichum graminicola.

bitstream/CNPMS/16149/1/Com_68.pd

Genomic and small RNA sequencing of Miscanthus × giganteus shows the utility of sorghum as a reference genome sequence for Andropogoneae grasses

Genomic data together with sequencing of tissue specific small RNA libraries reveals insights into the genome content, small RNA repertoire and evolutionary origins of the grass Miscanthus × giganteus

Peroxide Antimalarial Drugs Target Redox Homeostasis in Plasmodium Falciparum Infected Red Blood Cells

Plasmodium falciparum causes the most lethal form of malaria. Peroxide antimalarials based on artemisinin underpin the frontline treatments for malaria, but artemisinin resistance is rapidly spreading. Synthetic peroxide antimalarials, known as ozonides, are in clinical development and offer a potential alternative. Here, we used chemoproteomics to investigate the protein alkylation targets of artemisinin and ozonide probes, including an analogue of the ozonide clinical candidate, artefenomel. We greatly expanded the list of proteins alkylated by peroxide antimalarials and identified significant enrichment of redox-related proteins for both artemisinins and ozonides. Disrupted redox homeostasis was confirmed by dynamic live imaging of the glutathione redox potential using a genetically encoded redox-sensitive fluorescence-based biosensor. Targeted liquid chromatography-mass spectrometry (LC-MS)-based thiol metabolomics also confirmed changes in cellular thiol levels. This work shows that peroxide antimalarials disproportionately alkylate proteins involved in redox homeostasis and that disrupted redox processes are involved in the mechanism of action of these important antimalarials

Comparação entre rações para frangos de corte mais vendidas no Rio Grande do Sul. III. Rendimento Econômico

Six different commercial broiler rations were compared as to performance and economic aspects. The six rations selected were those sold in the greatest volume. Significant differences in gain of weight and feed conversion were found. However, these data alone were insufficient to classify the rations according to their economic value. It was necessary to consider the total production cost to determine the most profitable ration.São estudados e discutidos a performance e o aspecto econômico da criação de frangos de corte com seis rações diferentes. Foram escolhidas as rações de maior comercialização no Rio Grande do Sul. Foram obtidas diferenças significantes entre estas rações com referência ao ganho de peso e conversão alimentar. Estes dados, isoladamente, mostraram-se insuficientes para avaliar as rações do ponto de vista econômico, mas, quando unidos ao custo total de criação, tornaram possível determinar quais as rações econômicamente mais proveitosas

A comparison of rations used for broiler production in Rio Grande do Sul

Este trabalho teve por fim estudar a influência da alimentação na criação de frangos para corte. Para tanto foram utilizadas as seis rações de maior venda no Rio Grande do Sul no segundo semestre de 1968. Os resultados acusaram diferenças, estatísticamente bastante significantes, em ganho de peso, conversão, rendimento, pigmentação, distribuição de gorduras e comprimento e largura do peito, o que bem demonstra a importância de uma boa alimentação na criação de frangos.This paper presents a study of the relative efficiency of the six most popular commercial broiler rations used in Rio Grande do Sul. Differences for gain of weight, feed conversion, pigmentation, fat distribution and length and width of breast were significant, clearly showing the importance of good feeding in raising chickens