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Effects of porosity,dry unit weight,cement content and void/cement ratio on unconfined compressive strength of roof tile waste-silty soil mixtures

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第2期11卷 369-378页

作者： Eclesielter batista moreira Jair Arrieta Baldovino Juliana Lundgren Rose Ronaldo Luis dos santos Izzo Department of Civil Construction Federal University of Technology e ParanaCampus Curitiba

One of the conventional ways to improve the mechanical behavior of soils is to mix them with cementing agents such as cement, lime and fly ash. Recently, introduction to alternative materials or sub-products that can be adopted to improve the soil strength is of paramount importance. Therefore, the present study aims to investigate the effects of porosity(h), dry unit weight(gd) of molding, cement content(C)and porosity/volumetric cement content ratio(h/Civ) or void/cement ratio on the unconfined compressive strength(quor UCS) of silty soileroof tile waste(RT) mixtures. Soil samples are molded into four different dry unit weights(i.e. 13 kN/m^3, 13.67 kN/m^3, 14.33 kN/m^3 and 15 kN/m^3) using 3%, 6% and 9%cement and 5%, 15% and 30% RT. The results show that with the addition of cement, the strength of the RT esoil mixtures increases in a linear manner. On the other hand, the addition of RT decreases quof the samples at a constant percentage of cement, and the decrease in porosity can increase qu. A dosage equation is derived from the experimental data using the porosity/volumetric cement content ratio(h/C_(iv)) where the control variables are the moisture content, crushed tile content, cement content and porosity.

关键词： Roof tile waste (RT) Voids/cement ratio Reuse Ground improvement

Optimizing the evolution of strength for lime-stabilized rammed soil

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第4期11卷 882-891页

作者： Jair de Jesus Arrieta Baldovino Ronaldo Luis dos santos Izzo Eclesielter batista moreira Juliana Lundgren Rose Department of Civil Construction Federal University of Technology-Parana

In the present study,unconfined compressive strength(qu)values of two lime-treated soils(soil 1 and 2)with curing times of 28 d,90 d and 360 d were *** influence of void/lime ratio was represented by the porosity/volumetric lime content ratio(η/Liv)as the main parameter.η/Liv represents the volume of void influenced by compaction effort and lime *** evolution of qu was analyzed for each soil using the coefficient of determination as the optimization *** at providing adjustments to the mechanical resistance values,the η/Liv parameter was modified to η/LivC using the adjustment exponent C(to make qu-η/Liv variation rates compatible).The results show that with the decrease of η/*** increases potentially and the optimized values of C were *** mechanical resistance data show similar trends between qu and η/LivC for the studied silty soil-ground lime mixtures,which were cured at ambient temperature(23±2)℃ with different curing times of 28-360 ***,optimized equations were presented using the normalized strengths and the proposed optimization model,which show 6% error and 95% acceptability on average.

关键词： Lime-treated soil Void/lime ratio Ground improvement

The Use of Triancinolone for the Treatment of Keloid Scars

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Journal of Cosmetics, Dermatological Sciences and Applications 2024年第3期14卷 270-275页

作者： José Humberto Cardoso Resende Luís Otávio Torres Anderson Alves Brandão Delma dos santos Assis Mercadante Jessyka Oliveira Barbosa batista William Felix de Oliveira Pacheco Elisangelo Aparecido Costa Da Silva Douglas Henrique Farias de Oliveira Nébia Maria Almeida de Figueiredo UNIFAN-Centro Universitrio Alfredo Nasser Aparecida de Goinia Brazil UNIRIO Rio de Janeiro Brazil

Scars, when in good evolution, result in a smooth, thin and discreet tissue. Keloid scars, however, are a type of abnormal and exacerbated repair response to tissue injury, whether in surgical interventions or in various injuries, which present in a prominent and gross way. In this context, there is an excess of collagen deposition in the tissue repair process, which can lead to the formation of keloids. The diagnosis of the condition presented is made by the medical professional or by the patient himself after the surgical intervention or skin injury. Under this analysis, protruding, rough and bad-looking scars are identified. In addition, we highlight the existence of keloids similar to large tumors, described as Jorge Lobo disease. The treatment encompasses massages, compressions, corticosteroids, chemotherapy, collagenase and cryotherapy. At first, we used corticosteroid-based massages, and then we started using compressive dressings until we started intrakeloid infiltrations with injectable triamcinolone. Triamcinolone 10 mg injectable—1/10—in 0.9% saline, with syringe and fixed needle 0.3 mm × 8 mm, intralesional infiltrate, in this context, proved to be effective for its treatment when applied sequentially and linearly. In cases where the medication was applied, there was an improvement after 21 days of application and a definitive improvement 2 months after the injury. In comparison, on the other hand, patients who were not subjected to the application of the medication may improve after 4 months of the injury or worsen compared to the initial case. We have come to the conclusion that this procedure may be one of the chosen ones for the treatment of keloid scars, being one of the most recommended for cases of keloid already installed.

关键词： Keloid Scar Hypertrophy Collagen Affection

Determination of the physical and interaction properties of sorghum grains:Application to computational fluid dynamics-discrete element method simulations of the fluid dynamics of a conical spouted bed

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Particuology 2021年第1期19卷 91-101页

作者： J.N.M.batista D.A.santos R.Bettega Federal University of São Carlos Department of Chemical EngineeringSPBrazil Institute of Chemistry Federal University of GoiásGOBrazil

Computational simulation is an important tool for design and improvement of industrial *** fluid dynamics(CFD)coupled with the discrete element method(DEM)has been applied to simulate drying equipment that usually involves gas-solid *** reliable results of CFD-DEM simulations,the properties related to the interactions of the material within the industrial equipment,such as the restitution or friction coefficients,must be *** this study,CFD-DEM was applied to simulate the fluid dynamics inside a conical spouted bed operating with sorghum *** physical properties of the particulate phase and the particle-particle and particle-wall interaction parameters were determined by the direct measurement approach and applied to *** interaction parameters were experimentally determined,including the particle-particle interaction parameters ofη=0.46,μ^(S)=0.79,andμ_(R)=0.70,and the particle-wall interaction parameters ofη=0.56,μ_(S)=0.75,andμ_(R)=*** simulated minimum spouting velocity and characteristic curves were compared with the experimental *** was good agreement between the simulated and experimental results.

关键词： Restitution coefficient Static friction coefficient Rolling friction coefficient CFD DEM

Existence of Weakly Efficient Solutions in Vector Optimization

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Acta Mathematica Sinica,English Series 2008年第4期24卷 599-606页

作者： Lucelina batista santos Marko ROJAS-MEDAR Gabriel RUIZ-GARZóN Departamento de Matemática Universidade Federal do Paraná.CP.019081CEP:81531990Curitiba-PRBrazil Universidad del Bío-Bío Facultad de Ciencias Departamento de Ciencias BásicasCampus Fernando MayCasilla 447ChillánChile Departamento de Estadística e I.O. Universidad de CádizE.U.E.EmpresarialesPor-vera 5411403 Jerez de la FronteraSpain

In this paper, we present an existence result for weak efficient solution for the vector optimization problem. The result is stated for invex strongly compactly Lipschitz functions.

关键词： vector optimization weak efficiency generalized convexity Clarke generalized gradient

Helicobacter pylori infection:How does age influence the inflammatory pattern?

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World Journal of Gastroenterology 2022年第4期28卷 402-411页

作者： glauber Rocha Lima Araújo Hanna santos Marques Maria Luísa Cordeiro santos Filipe Antônio França daSilva Breno Bittencourt da Brito Gabriel Lima Correa santos Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094Brazil Campus Vitória da Conquista Universidade Estadual do Sudoeste da BahiaVitória da Conquista 45083-900Brazil

The inflammatory pattern during Helicobacter pylori(***)infection is changeable and *** childhood,it is possible to observe a predominantly regulatory response,evidenced by high concentrations of key cytokines for the maintenance of Treg responses such as TGF-β1 and IL-10,in addition to high expression of the transcription factor *** the other hand,there is a predominance of cytokines associated with the Th1 and Th17 responses among ***-positive *** the last few years,the participation of the Th17 response in the gastric inflammation against *** infection has been highlighted due to the high levels of TGF-β1 and IL-17 found in this infectious scenario,and growing evidence has supported a close relationship between this immune response profile and unfavorable outcomes related to the ***,this cytokine profile might play a pivotal role in the effectiveness of *** *** is evident that age is one of the main factors influencing the gastric inflammatory pattern during the infection with ***,and understanding the immune response against the bacterium can assist in the development of alternative prophylactic and therapeutic strategies against the infection as well as in the comprehension of the pathogenesis of the outcomes related to that microorganism.

关键词： Helicobacter pylori Inflammation Treg response Th1 response Th17 response Gastric diseases

Scientometric Analysis of Research Output from Brazil in Response to the Zika Crisis Using e-Lattes

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Journal of Data and Information Science 2020年第4期5卷 137-146页

作者： Ricardo Barros Sampaio Antônio de Abreu batista-Jr Bruno santos Ferreira Mauricio LBarreto Jesús PMena-Chalco Regional Board of Brasília Fiocruz Distrito FederalBrazil Department of Informatics Federal University of Maranhão São LuísMABrazil Department of Teaching and Learning Studies Laval UniversityQuébecCanada Center of Integrated Data and Knowledge about Health(CIDACS) SalvadorBrazil Center for Mathematics Computation and CognitionFederal University of ABC Santo AndréSPBrazil

Purpose:This paper aims to test the use of e-Lattes to map the Brazilian scientific output in a recent research health subject:Zika ***/methodology/approach:From a set of Lattes CVs of Zika researchers registered on the Lattes Platform,we used the e-Lattes to map the Brazilian scientific response to the Zika ***:Brazilian science articulated quickly during the public health emergency of international concern(PHEIC)due to the creation of mechanisms to streamline funding of scientific *** limitations:We did not assess any dimension of research quality,including the scientific impact and societal *** implications:e-Lattes can provide useful guidelines for different stakeholders in research groups from Lattes CVs of ***/value:The information included in Lattes CVs permits us to assess science from a broader perspective taking into account not only scientific research production but also the training of human resources and scientific collaboration.

关键词： e-Lattes Zika virus Lattes Platform Brazilian research output Brazilian science

Traps and trumps from adjacent-to-tumor samples in gastric cancer research

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Chinese Journal of Cancer Research 2018年第5期30卷 564-567页

作者： Paulo Pimentel de Assumpcao Andre Salim Khayat Taissa Maira Thomaz Araujo Williams Fernandes Barra Geraldo Ishak Mine Maria Pereira Cruz Ramos Sidney Emanuel batista dos santos Andrea Kely Campos Ribeiro dos santos Samia Demachki Paula Barauna de Assumpcao Danielle Queiroz Calcagno Ney Pereira Carneiro dos santos Monica Barauna de Assumpcao Fabiano Cordeiro moreira Andre Mauricio Ribeiro dos santos Carolina Barauna de Assumpcao Gregory Joseph Riggins Rommel Mario Rodriguez Burbano Oncology Research Center Federal University of Para Belem 66075-110 Brazil PhD Program in Genetics and Molecular Biology Federal University of Para Belem 66075-110 Brazil Gastrointestinal Endoscopy Service Joao de Barros Barreto University Hospital Belem 66073-000 Brazil Department of Surgical Oncology Oswaldo Cruz Germany Hospital Sao Paulo 01327-001 Brazil Department of Neurosurgery Johns Hopkins University Baltimore 21287 USA Laboratory of Molecular Biology Ophir Loyola Hospital Belem 66060-281 Brazil

The search for cancer biomarkers is frequently based on comparisons between tumors and adjacent-to-tumor samples. However, even after histological confirmation of been free of cancer cells, these adjacent-to-tumor samples might harbor molecular alterations which are not sufficient to cause them to look like cancer, but can differentiate these cells from normal cells. When comparing them, potential biomarkers are missed, and mainly the opportunity of finding initial aberrations presents in both tumors and adjacent samples, but not in true normal samples from non-cancer patients, resulting in misinterpretations about the carcinogenic process. Nevertheless, collecting adjacent-to-tumor samples brings trumps to be explored. The addition of samples from non-cancer patients opens an opportunity to increase the finds of the molecular cascade of events in the carcinogenic process. Differences between normal samples and adjacent samples might represent the first steps of the carcinogenic process. Adding samples of non-cancer patients to the analysis of molecular alterations relevant to the carcinogenic process opens a new window of opporttmides to the discovery of cancer biomarkers and molecular targets.

关键词： Adjacent-to-tumor trumps traps

Interleukin-1 and TNF-α polymorphisms and Helicobacter pylori in a Brazilian Amazon population

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World Journal of Gastroenterology 2009年第12期15卷 1465-1471页

作者： Hivana Patricia Melo Barbosa Luisa Caricio Martins Sidney Emanuel batista dos santos Samia Demachki Mnica Baraúna Assumpo Charliana Damasceno Arago Tereza Cristina de Oliveira Corvelo Laboratory of Immunogenetics Federal University of Pará66075-110BelémBrazil Nucleus of Tropical Medicine Federal University of Pará66055-240BelémBrazil Laboratory of Human and Medical Genetics Federal University of Pará66075-110BelémBrazil Department of Pathology Joo de Barros Barreto Universitary HospitalFederal University of Pará66073-000BelémBrazil Department of Endoscopy Joo de Barros Barreto Universitary HospitalFederal University of Pará66073-000BelémBrazil

AIM： To study the association between Interleukin-1 （IL-1） and tumor necrosis factor （TNF）-α polymorphisms, infection by Helicobacter pylori （H pylori） and the development of gastrointestinal diseases.METHODS： Genomic DNA was extracted from the peripheral blood of 177 patients with various gastrointestinal diseases and from 100 healthy volunteers. The polymorphisms in IL-1β and TNF-α genes were analyzed using the polymerase chain reactionrestriction fragment length polymorphism method （PCRRFLP） and those from IL-1RN with PCR. The presence of infection due to H pylori and the presence of the CagA toxin were detected by serology. The histopathological parameters in the gastric biopsies of the patients were according to the Sydney classification.RESULTS： A comparison of the frequencies of the different polymorphisms studied among the patients and the control group demonstrated that the allele IL- 1RN＊2 was more frequent among patients with gastric ulcers and adenocarcinoma. Carriers of the allele IL- RN＊2 and those with reactive serology for anti-CagA IgG had a greater risk of developing peptic ulcer and gastric adenocarcinoma, as well as a higher degree of inflammation and neutrophilic activity in the gastricCONCLUSION： Our results indicate a positive association between IL-1RN gene polymorphism and infection by positive H pylori CagA strains and the development of gastric ulcers and adenocarcinoma.

关键词： Helicobacter pylori Interleukin 1β gene Interleukin-1 receptor antagonist gene TNF-α gene Cag pathogenicity island