Caracterização geológica do perfil laterítico no município de Rondon do Pará, bloco sul do projeto Alumina Rondon

This completion of course work has as its object of study the Bauxite Province of Paragominas regarded as the richest Amazon bauxite province and whose genesis is related to laterization processes responsible for the formation of mineral deposits of the Rondon Alumina Project, designed to assess areas in the southeast of Pará State, for mineral resources exploration of bauxite, which is the main source of aluminum in the country. Located in the region of Rondon do Pará - PA, the study area is geologically inserted in Lithostratigraphic Unit called Cobertura Laterítica Matura (Mature Lateritic Cover), formed by alteration of paleotropics Cretaceous siliciclastic rocks, and its geomorphology corresponds to a broad plateau with displays of representative profiles of the processes that acted in the region. In this context, the present research aims to characterize the geological evolution of the laterite profile, with detailed studies in the area, geological description of the formations from the bauxite surfaces, and mineralogical composition litochemical of different horizons that were correlated and deployed in an evolutionary model compatible with its traits. The data collected during the analysis subsidized metalogenetic understanding of the processes that acted in the enrichment of aluminum and iron as well as the redistribution of the latter modified profile. The results and information were embodied in the form of geological characterization of the different constituents of mineral associations of bauxite horizons, similarities or differences in both textural and structural aspects, in order to propose a evolutionary model with retaken of gibbsitization processes

Aluga-se meu apego: a história de vida dos anunciantes de classificados

A lógica instantânea da sociedade informacional não permite que a maioria dos meios de comunicação abra espaço para a história de vida das fontes jornalísticas, muito menos das anônimas. A instantaneidade com que os fatos têm de chegar ao receptor não é compatível com o exercício jornalístico que busca a densidade, o aprofundamento das relações sociais. “Aluga-se meu apego: a história de vida dos anunciantes de Classificados” busca apontar uma alternativa para o jornalismo oficial e superficial. Trata-se de um livro-reportagem de perfil que tenta mapear traços e mudanças da identidade dos anônimos, apontando-os como agentes sociais de suas próprias vidas e das vidas alheias. A partir dos preceitos da psicologia social e da antropologia, busca-se definir a identidade como um processo socialmente construído e sujeito a constantes mutações. Embuído dessa premissa, o Jornalismo Literário aparece como opção que permite o aprofundamento na cobertura dos fatos e a contextualização dos fenômenos decorrentes dele. O conteúdo do livro-reportagem possui dez perfis que contam fragmentos da vida, dos anseios e das angústias de anunciantes dos Classificados do Jornal da Cidade de Bauru (SP) que coabitam o município com as fontes oficiais utilizadas pelos jornais mas que, porém, não têm a mesma visibilidade nem são encarados como fundamentais para nossa realidade

Aplicabilidade das equações isotermas de Freundlich e Langmuir na interação biossortiva de corantes têxteis com Saccharomyces cerevisiae liofilizada

This paper presents a study of the applicability of adsorption isotherms, known as Langmuir and Freundlich isotherm, between the biosorptive interaction of yeast lyophilized Saccharomyces cerevisiae and textile dyes. To that end, we prepared stock solutions of the textile dyes Direct Red 23 and Direct Red 75 in the concentration of 1.000μg/mL and a yeast suspension at 2,5%. We did experiments for two cases, firstly for the case that we have a fix concentration of yeast at 0,500mg/mL and an variable concentration of dye range from40, 50, 60, 80 and 100μg/mL, then for the case that we fixed the concentration of dye at 100μg/mL and the yeast concentration was variable range from 0,250, 0,500, 0,750, 1,000, 1,250mg/mL. For the dye Direct Red 23 we did analysis in the pH 2,5, 4,5 and 6,5; for the Direct Red 75, we just did for the pH 2,5. We leave the dye solution in contact with the yeast for 2 hours at a constant temperature of 30°C and then centrifuged and analyzed the sample in a spectrophotometer and finally made and analysis of parameters for the removal and study of the isotherms. After the biosorption, was observed that for the Direct Red 23 in the pH 2,5 was needed 1,407mg/mL of yeast for total removal, while for the pH 4,5 was needed 8,806mg/mL and in pH 6,5 was 9,286mg/mL; for the Direct Red 75 in pH 2,5 was needed 1,337mg/mL. This difference can be explain by the adsorption isotherms, was observed that in the case when the yeast was fix when we had in a acid pH the behavior of the system was compatible with the Langmuir isotherm, and thus, an monolayer pattern. And that when we decrease the acidity of the medium the system became more compatible with a Freundlich isotherm, and thus, a multilayer pattern; for the case that the yeast was variable this is not much evident, however for the pH 2,5 she became compatible with a Langmuir isotherm... (Complete abstract click electronic access below)

Desenvolvimento de nova embalagem para comercialização, transporte e liberação do parasitoide Cotesia flavipes (Cameron, 1891) (Hymenoptera: Braconidae)

Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

Sistemas bioinspirados aplicados no estudo de interação e sensoriamento de derivados xantênicos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Gerenciamento na construção civil - planejamento e controle: estudo de caso no planejamento físico de um empreendimento imobiliário

Given the high competitiveness in the construction industry, businesses became necessary in a management which reduce costs and delivery times, and is fundamental to running a compatible planning with the magnitude of each work order is the same make feasible the executor. When it comes to planning, one is including both the physical planning of the work, time and duration of the events, as well as the preparation of the cost thereof. There are numerous ways to run the management of works, then it is necessary, in most cases, the planning experience, in previous works, the engineer in charge, because with it he should know what strategy to take the work skirt as planned and designed. For a complete and efficient management, an initial study hard to prepare the physical and financial planning it is necessary, in order to make it real and consistent throughout the execution of the work. It is necessary also a hard monitoring of both the physical and the financial schedule in order to what was initially planned to be completed as close as possible. This paper shows a case study which uses some ways to the management be held with the course of planning, medium and short term, as well as the preparation of the initial budget of the work. Will also be presented as is performed physical planning of a real estate work

Materiais híbridos argila-poli(metil metacrilato) obtidos através do método grafting

Pós-graduação em Química - IQ

Orientação e ortorretificação de imagens terrestres nadirais

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Bioprospecção de leveduras fermentadoras de xilose visando a produção de etanol a partir de bagaço de cana-de-açúcar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estresse térmico no acúmulo de prolina livre de plântulas de guandu oriundas de sementes tratadas com poliaminas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Paralelização automática de laços

Identify opportunities for software parallelism is a task that takes a lot of human time, but once some code patterns for parallelism are identified, a software could quickly accomplish this task. Thus, automating this process brings many benefits such as saving time and reducing errors caused by the programmer [1]. This work aims at developing a software environment that identifies opportunities for parallelism in a source code written in C language, and generates a program with the same behavior, but with higher degree of parallelism, compatible with a graphics processor compatible with CUDA architecture.

Study on the origin and nature of the adenomatoid odontogenic tumor by immunohistochemistry

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito de scaffolds de nanofibras incorporados com antibióticos sobre biofilmes formados por bactérias presentes nos canais radiculares

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Storage media for avulsed teeth: a literature review

Dental avulsion is the most severe type of traumatic tooth injuries because it causes damageto several structures and results in the complete displacement of the tooth from its socketin the alveolar bone. The ideal situation is to replant an exarticulated tooth immediatelyafter avulsion because the extraoral time is a determinant factor for treatment successand for a good prognosis. However, it is not always possible. The success of replantationdepends on a number of factors that may contribute to accelerate or minimize theoccurrence of root resorption or ankylosis, among which is the type and characteristicsof the medium used for temporary storage during the time elapsed between avulsionand replantation. Maintaining the tooth in an adequate wet medium that can preserve,as longer as possible, the vitality of the periodontal ligament cells that remain on rootsurface is the key to success of replantation. Recent research has led to the developmentof storage media that produce conditions that closely resemble the original socketenvironment, with adequate osmolality (cell pressure), pH, nutritional metabolites andglucose, and thus create the best possible conditions for storage. Although these storagemedia can now be purchased in the form of retail products, the most common scenariois that such a product will not be readily available at the moment of the accident Thispaper reviews the literature on the different storage media that have been investigatedfor avulsed teeth based on full-length papers retrieved from PubMed/Medline, Lilacs, BBOand SciELO electronic databases using the key words storage medium , transportationmedium , avulsion , tooth avulsion , replantation , tooth replantation , milk and propolis .After application of inclusion and exclusion criteria, 39 papers were selected and criticallyreviewed with respect to the characteristics, efficacy and ease of access of the storagemedium. The review of the lite

Enxerto de tecido conjuntivo para correção da margem peri-implantar

Soft tissue recessions frequently cause esthetic disharmony and dissatisfaction. The results of coverage in peri-implant sites, in comparison with soft tissue coverage around a tooth, is less predictable. This clinical report describes the correction of an esthetic problem with a single-tooth implant-supported using a subepithelial connective tissue graft (SCTG) combined with the re-establishment of a new limit of gingival margin, and emergence crown profile. After anamnese and clinical exam it was observed an implant in the region of tooth 22 in vestibular position to alveolar ridge with a recession of 5 mm in its vestibular face. In the first cirurgical procedure the crown and the abutment were removed and a SCTG associated with a coronally positioned flap was performed in order to re-establish the limit of gingival margin. After 90 days, it was observed that the tissue in the implant site showed no adequate volume or thickness. Because of that, another SCTG was performed. The reopening procedure to install the healing cap was performed after 4 weeks. Then the prosthesis was installed. At 180 and 360 days postoperative, the implant adjacent tissue presented regular contour, color compatible with health and absence of bleeding. The patient was satisfied with the esthetic result. According to the clinical results and favorable esthetics it was possible to conclude that the use of ETC to correct an esthetic deficiency may be a feasible approach to establish new and stable peri-implant soft tissue contours.