New Emulsion Containing Paraffinic Compounds

Emulsions are thermodynamically unstable systems and are used in various types of industrial applications such as oil recovery, resin preparation, among many other applications. In the present work are discussed and shown data of the new emulsion system formed by components Chitosan/SDS/Hexane. The preparation and characterization of this emulsion were used the techniques of tensiometry, turbidity and flow time. The methodology requires that the participation of the paraffinic compounds as hexane, the biopolymer chitosan and the anionic surfactant Sodium Dodecylsulfate (SDS) with favorable intermolecular interactions between these three components. The results showed that a larger amount of chitosan about 85% (v/v) in the system causes of an increase in the value of surface tension, reaching 39.62 mN/m. However, high amounts of SDS about 70% (v/v) there is an increase in the turbidity values of the emulsions, with a maximum value of 110.8 NTU

News Aspects Theoric and Experimental to Paraffins Compounds

The paraffinic compounds are important to new investigation on the properties physics and its correlation with theoric dates, because in literature no is completely clarified. However, there are some studies on the formalism for developing asymptotic behavior correlation for homologous series paraffin compounds. In this work is show that the effect of parameters theoric obtained by molecular modeling can be correlated with experimental dates. To paraffins as pure, for example, n-hexane, C6H14, MW 158 g/mol, is composed of two groups CH3 and four groups CH2 and its can depending of structure molecular ramification to predict what your dependency with thermodynamics data. Therefore, the molecular modeling of paraffinic compounds uses a methodology that looks for data correlated with the structure of the molecule complemented with experimental data. The objective this study is correlated this molecular data with some thermodynamics data as enthalpy of formation and other parameters

FPolymer: A Program for 3D Structure Generation and OPLS Topology of Polymers with High Molecular Mass

The need to study polymeric systems with high molecular masses by techniques such as molecular dynamics using free-use software, coupled with the difficulty of parameterizing such systems, led to the creation of the FPolymer program. This program was built in C++ language using the QT-creator framework and has a simple and intuitive interface. The main function of the program is to use previously parameterized trimers of any polymer to generate a structure with the number of repeating units indicated by the user. As output of the program, the user receives a file <file>.pdb containing the structure of the polymer and a file <file>.top with the topology prepared to perform youngest molecular dynamics in the GROMAS program. DOI: http://dx.doi.org/10.17807/orbital.v14i1.1698 &nbsp

FPolymer: A Program for 3D Structure Generation and OPLS Topology of Polymers with High Molecular Mass

The need to study polymeric systems with high molecular masses by techniques such as molecular dynamics using free-use software, coupled with the difficulty of parameterizing such systems, led to the creation of the FPolymer program. This program was built in C++ language using the QT-creator framework and has a simple and intuitive interface. The main function of the program is to use previously parameterized trimers of any polymer to generate a structure with the number of repeating units indicated by the user. As output of the program, the user receives a file .pdb containing the structure of the polymer and a file .top with the topology prepared to perform youngest molecular dynamics in the GROMAS program. DOI: http://dx.doi.org/10.17807/orbital.v14i1.1698

Preparação e Caracterização de Blendas Híbridas de Poliacrilonitrila e Quitosana

In this work we report O estudo da interação de íons Fe(II) com a polianilina foi feito através da obtenção deste polímero na forma de salthe studies on polymer blend using the polymers polyacrylonitrile (PAN) and chitosan (CHI) in two compositions weight 56% PAN with 44% of CHI and 88% de PAN with 12% of CHI. We used the techniques of infrared spectroscopy (FT-IR) and scanning electron microscopy (MEV) for characterizationaplicação de pressão. The results showed that the polymer blend obtained is stable and effective interaction between PAN and CHI was observed. DOI: http://dx.doi.org/10.17807/orbital.v7i4.77

2 nd Brazilian Consensus on Chagas Disease, 2015

Abstract Chagas disease is a neglected chronic condition with a high burden of morbidity and mortality. It has considerable psychological, social, and economic impacts. The disease represents a significant public health issue in Brazil, with different regional patterns. This document presents the evidence that resulted in the Brazilian Consensus on Chagas Disease. The objective was to review and standardize strategies for diagnosis, treatment, prevention, and control of Chagas disease in the country, based on the available scientific evidence. The consensus is based on the articulation and strategic contribution of renowned Brazilian experts with knowledge and experience on various aspects of the disease. It is the result of a close collaboration between the Brazilian Society of Tropical Medicine and the Ministry of Health. It is hoped that this document will strengthen the development of integrated actions against Chagas disease in the country, focusing on epidemiology, management, comprehensive care (including families and communities), communication, information, education, and research

Termodinamica da contribuição de grupos-CH2 no processo de transferencia de fase : I-alcool/Micelas II-alcool / microorganismos

Orientador : Pedro L. O. VolpeDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quim icaMestrad

Estudo termodinamico da interação de tensoativos ionicos com tripsina

Orientador: Pedro L. O. VolpeTese (doutorado) - Universidade Estadual de Campinas, Instituto de QuimicaDoutorad