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Review of Brazilian Activities Related to the Thorium Fuel Cycle and Production of Thorium Compounds at IPEN-CNEN/SP

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Journal of Energy and Power Engineering 2014年第12期8卷 1983-1990页

作者： Paulo Ernesto de oliveira Lainetti antonio Alves de Freitas Ana Copat Mindrisz Centro de Quimica e Meio Ambiente IPEN-CNEN/SP (Instituto de Pesquisas Energetieas e Nucleares) $6o Paulo 2242 05508-000Brazil

The Brazilian＇s interest in the nuclear utilization of thorium has started in the 1950s as a consequence of the abundant occurrence ofmonazite sands. Since the 1960s, IPEN-CNEN/SP （lnstituto de Pesquisas Energ6ticas e Nucleares） has performed some developments related to the thorium fuel cycle. The production and purification of thorium compounds was carried out at IPEN for about 18 years and the main product was the thorium nitrate with high purity, having been produced over 170 metric tons of this material in the period, obtained through solvent extraction. The thorium nitrate was supplied to the domestic industry and used for gas portable lamps （Welsbach mantle）. Although the thorium compounds produced have not been employed in the nuclear area, several studies were conducted. Therefore, those activities and the accumulated experience are of strategic importance, on one hand, due to huge Brazilian thorium reserves, on the other hand, by the resurgence of the interest of thorium for the Generation IV advanced reactors. This paper presents a review of the Brazilian research and development activities related to thorium technology.

关键词： Thorium compounds purification processes.

Characterization of Grugru Palm Pulp for Food Applications

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Journal of Food Science and Engineering 2013年第2期3卷 107-112页

作者： Dalany Menezes oliveira Janaina de Paula da costa Edmar Clemente Jose Maria Correia da costa Center of Agricultural Sciences State University of Maring6 Postgraduate degree in food Science Avenida Colombo MaringaParana 5790 Brazil department of Food Technology Federal University of Ceara Avenida Mister Hull 2977 Alagadigo Campus do Pici Bloco 858Fortaleza Ceara Brazil department of Chemistry State University of Maringa Avenida Colombo Maringa Paran6 5790 Brazil

Studies are needed to know the grugru palm （Acrocomia aculeata） potential for food industry. This study aimed to characterize physicochemical quality and minerals in the mesocarp （pulp） of grugru palm, Grugru palm fruits from NE Brazil production area were collected and analyzed. The determinations included： respiratory rate, sugars, soluble solids, pH, titratable acidity, humidity, water activity （aw）, ashes, protein, lipids, total phenolics, total carotenoids, vitamin C, color and minerals. The fruit respiration rate was 74.45 mL CO2 kg-1 h1. High levels were found for sugars, soluble solids, pH, aw, lipids and carotenoids; however, the pulp showed low acidity, moisture and ashes. The values found for lipids, minerals and vitamin C are equivalent to those observed in the literature. The grugru palm fruit has a high rate of respiration, which turns necessary the use of conservation techniques and methods. The grugru palm fruit pulp shows physical quality parameters attractive to the consumer, physicochemical quality and nutritive composition which can be considered for food ingredients and alternative source of ingredient for supplementation of diet food for needy population.

关键词： Grugru palm (Acrocomia aculeata) mesocarp minerals carotenoids flavonoids.

Enhancement of the Antigenotoxic and Antioxidant Actions of Eugenol from Spice Clove and the Stabilizer Gum Arabic on Colorectal Carcinogenesis

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Association of insertion-deletions polymorphisms with colorectal cancer risk and clinical features

Food and Nutrition Sciences（食品与营养科学） 2024年第1期

作者： Nayanna de oliveira Ramos Melo Lucas Gabriel da costa Marques Humberto Maia costa Neto Matheus de Sousa Silva Francisco Vagnaldo Fechine Jamacaru Bruno Coêlho Cavalcanti Antônio Adailson de Sousa Silva Conceição Aparecida Dornelas

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World Journal of Gastroenterology 2017年第37期23卷 6854-6867页

作者： Diego Marques Layse Raynara Ferreira-costa Lorenna Larissa Ferreira-costa Romualdo da Silva Correa Aline Maciel Pinheiro Borges Fernanda Ribeiro Ito Carlos Cesar de oliveira Ramos Raul Hernandes Bortolin André Ducati Luchessi Andrea Ribeiro-dos-Santos Sidney Santos Vivian Nogueira Silbiger Laboratório de Bioanálise e Biotecnologia Molecular Universidade Federal do Rio Grande do Norte Programa de Pós-graduacao em Ciências Farmacêutica Universidade Federal do Rio Grande do Norte Laboratório de Genética Humana e Médica Universidade Federal do Pará departamento de Cirurgia Oncológica Liga Norte Riograndense Contra o Cancer Laboratório de Patologia eCitopatologia Liga Norte Riograndense Contra o Cancer depart-amento de Análises Clínicas e Toxicológicas Universidade Federal do Rio Grande do Norte Núcleo de Pesquisas em Oncologia Universidade Federal do Pará

AIM To investigate the association between 16 insertiondeletions(INdeL) polymorphisms, colorectal cancer(CRC) risk and clinical features in an admixed *** O n e h u n d re d a n d fo r ty p a t i e n t s w i t h C R C a n d 140 cancer-free subjects were examined. Genomic DNA was extracted from peripheral blood samples. Polymorphisms and genomic ancestry distribution were assayed by Multiplex-PCR reaction, separated by capillary electrophoresis on the ABI 3130 Genetic Analyzer instrument and analyzed on Gene Mapper ID v3.2. Clinicopathological data were obtained by consulting the patients' clinical charts, intra-operative documentation, and pathology *** Logistic regression analysis showed that polymorphism variations in IL4 gene was associated with increased CRC risk, while TYMS and UCP2 genes were associated with decreased risk. Reference to anatomical localization of tumor del allele of NFKB1 and CASP8 were associated with more colon related incidents than rectosigmoid. In relation to the INdeL association with tumor node metastasis(TNM) stage risk, the Ins alleles of ACE, HLAG and TP53(6 bp INdeL) were associated with higher TNM stage. Furthermore, regarding INdeL association with relapse risk, the Ins alleles of ACE, HLAG, and UGT1A1 were associated with early relapse risk, as well as the del allele of TYMS. Regarding INdeL association with death risk before 10 years, the Ins allele of SGSM3 and UGT1A1 were associated with death *** The INdeL variations in ACE, UCP2, TYMS, IL4, NFKB1, CASP8, TP53, HLAG, UGT1A1, and SGSM3 were associated with CRC risk and clinical features in an admixed population. These data suggest that this cancer panel might be useful as a complementary tool for better clinical management, and more studies need to be conducted to confirm these findings.

关键词： Colorectal cancer Ins-del polymorphism Admixed population Potential biomarker Diagnostic Risk stratification Prognostic Clinical features

Work Organization Model Applied on Smallholder Dairy Farms in Brazil

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Journal of Agricultural Science and Technology(A) 2017年第8期7卷 567-576页

作者： Claudilaine Caldas de oliveira antonio Renato Pereira Moro Leandra Ulbricht department of Production Engineering Federal University of Santa Catarina Campus Reitor Joao David Ferreira LimaFlorianopolis 88010910 Santa Catarina Brazil Graduate Program in Biomedical Engineering Federal University of Technology Curitiba 80230901 Parana Brazil

This research identified difficulties faced by dairy farmers in family farming, describing this diagnosis through ergonomic demand items （EDIs）. The objective was to elaborate an organization model of work related to dairy farming （WRDF）. As a methodology, a descriptive exploratory study was carried out in 14 family dairy farms that were visited and had their activities monitored. As main results, 11 EDIs were identified. The ones grouped in the infrastructure factor showed the highest resolution priority. The WRDF model was composed of three categories： management, public policies management and infrastructure, which were further subdivided into technical and social aspects. From this perspective, it is believed that the implementation of the model can bring organizational improvement, once adjustments are made in the procedures and working conditions. This study sheds light on the conditions that need to be resolved with higher priority so that the farmers will remain in the dairy business.

关键词： Milk production Brazil dairy farming ergonomics work environment.

19-year remotely sensed data in the forecast of spectral models of the environment

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International Journal of Digital Earth 2021年第8期14卷 1040-1066页

作者： Fernando Saragosa Rossi Carlos antonio da Silva Junior JoséFrancisco de oliveira-Júnior Paulo Eduardo Teodoro Luciano Shozo Shiratsuchi Mendelson Lima Larissa Pereira Ribeiro Teodoro Auana Vicente Tiago Guilherme Fernando Capristo-Silva State University of Mato Grosso(UNEMAT) Alta FlorestaMato GrossoBrazil department of Geography State University of Mato Grosso(UNEMAT)SinopMato GrossoBrazil cFederal University of Alagoas(UFAL) MaceióAlagoasBrazil dFederal University of Mato Grosso do Sul(UFMS) Chapadão do SulMato Grosso do SulBrazil eAgCenter School of PlantEnvironmentaland Soil SciencesLouisiana State University(LSU)Baton RougeLouisianaUSA fPostgraduate Program in Agronomy Federal University of Mato Grosso(UFMT)SinopMato GrossoBrazil

The aims of this study were:i)to compare no-till areas in two municipalities located in different regions of Brazil,along with the influence on CO_(2)Flux and GPP,and ii)to verify the difference between environmental factors followed by the trends of these variables regarding future scenarios(ARIMA time-series model number).The study was carried out in two areas with different latitudes in the municipalities of Sinop-MT and Passo Fundo-RS,both in Brazil.A time series of 19 years was performed with data acquired by remote sensing from the following satellites:i)Landsat-8(OLI and TIRS),and ii)TERRA/AQUA(MODIS).The results propound that the spectro-temporal variables are directly influenced by soil management and agricultural practices over the observation time,with a satisfactory correlation in future predictions of the variables for the next ten years,in which presented that the variation of GPP and albedo values for the two study sites would gradually increase until 2028 and the temperature remained constant between the range of its seasonality,and CO_(2)Flux tends to decrease in its seasonality,indicating a higher CO_(2) absorption.

关键词： ARIMA numerical modeling remote sensing orbital products tillage

Fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis

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Engineering 2017年第6期3卷 795-805页

作者： Jose antonio Fonseca de oliveira Correia Bruno Alexandre Silva Pedrosa Patricia Cordeiro Raposo Abilio Manuel Pinho de Jesus Helena Maria dos Santos Gervisio Grzegorz Stanislaw Lesiukc Carlos Alberto da Silva Rebelo Rui Artur Bartolo Calcada Luis Alberto Proenca Simoes da Silva Faculty of Engineering University of Porto Porto 4200-465 Portugal Institute for Sustainability and Innovation in Structural Engineering (ISISE) Department of Civil Engineering University of Coimbra Coimbra 3030-788 Portugal department of Mechanics Materials Science and Engineering Faculty of Mechanical Engineering Wroclaw University of Technology Wroctaw 50-370 Poland

Different strategies can be used to perform reparations and reinforcements of ancient bolted and riveted metallic bridges. As the riveting process is not currently a common practice, it requires proper equipment and skilled workers. Another solution is the use of welding. However, the weldability of old steels is poor. Bolts are very attractive alternative solutions, and are most commonly used to repair old metallic bridges. Fitted bolts are expensive solutions; the alternative is the use of resin-injected bolts. The behavior of bolted joints with preloaded resin-injected bolts has been studied using quasi-static and creep tests; however, few studies on the slip and fatigue behavior of these joints can be found in the literature. This paper presents an overview of a few experimental programs that were carried out by several authors aiming at evaluating the fatigue behavior of single and double shear resin-injected bolted connections. A comparison between the experimental data of joints with preloaded standard bolts and preloaded resin- injected bolts shows a fatigue strength reduction in the latter. Since Eurocode 3 （EC3） suggests the same fatigue strength curve for joints made of resin-injected bolts and standard bolts, this may raise some con- cerns. Furthermore, research on the feasibility of using both bonded and bolted connections is shown. This last study was performed with high-strength low-alloy structural steel plates and an acrylic struc- tural adhesive for metal bonding. For both case studies, a statistical analysis is performed on fatigue experimental data using linearized boundaries and the Castillo and Fernandez-Canteli model. Fatigue design curves are proposed and compared with the design suggestions of several European and North American standards,

关键词： Fatigue Connections Structural reinforcements Structural adhesives S-N curves Resin-injected bolts

Slope Processes, Mass Movement and Soil Erosion： A Review

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Pedosphere 2017年第1期27卷 27-41页

作者： antonio Jos Teixeira GUERRA Michael Augustine FULLEN Maria do Carmo oliveira JORGE Joss Fernando Rodrigues BEZERRA Mohamed S. SHOKR department of Geography Federal University of Rio de Janeiro Rio de Janeiro 21941-972 (Brazil) Faculty of Science and Engineering University of Wolverhampton Wolverhampton WV1 1LY (UK) department of Geography State University of Maranhao SSo Luis 65055-970 (Brazil) Soil and Water department Faculty of Agriculture Tanta University Tanta 31527 (Egypt)

Soil erosion and land degradation are global problems and pose major issues in many countries. Both soil erosion and mass movement are two forms of land degradation and humans play important roles in these geomorphological processes. This paper reviews slope processes associated with mass movement and soil erosion and contributory factors, including physical and human agents. Acting together, these cause diverse geomorphological features. Slope processes are illustrated by reference to case studies from Brazil and UK. The causes and impacts of erosion are discussed, along with appropriate remedial bioengineering methods and the potential of the measures to prevent these types of environmental degradation. Although there are several agents of erosion, water is the most important one. Cultivation can promote soil erosion, due to ploughing and harvesting, which moves soil down slopes. Soil erosion and mass movement data would inform the viability of soil conservation practices. Integrated management of drainage basins offers a Dromising way forward for effective soil conservation and soil remedial bioengineering in Brazil and UK.

关键词： geomorphological feature land degradation hazards risks slope processes soil recuperation

Preservation of platelet function in patients with cirrhosis and thrombocytopenia undergoing esophageal variceal ligation

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Hepatobiliary & Pancreatic Diseases International 2020年第6期19卷 555-560页

作者： Evandro de oliveira Souza Elbio antonio D’Amico Tania Rubia Flores da Rocha Caroline Marcondes Ferreira Juliana Medeiros Batista Luiz Augusto CarneiroD’Albuquerque Flair Jose Carrilho Alberto Queiroz Farias Division of Gastroenterology and Hepatology University of Sao Paulo School of MedicineAv.Dr.Eneas Carvalho de Aguiar2559th flooroffice 9159Sao PauloSP 05403-000Brazil Hemostasis Laboratory Hematology ServiceUniversity of Sao Paulo School of MedicineAv.Dr.Eneas Carvalho de Aguiar2552nd floorSao PauloSP 05403-000Brazil

Background:Thrombocytopenia is a possible risk factor for bleeding after band ligation of esophageal ***,elevated von Willebrand factor(VWF)in cirrhosis improves platelet function and could decrease this *** objective was to assess platelet function in patients with cirrhosis undergoing esophageal variceal ligation(EVL).Methods:The assessment consisted of platelet count,antigen and activity of VWF and VWF-cleaving protease ADAMTS-13 activity,and a platelet adhesion and aggregation test simulating vascular flow in vivo(Impact-RR)prior to ***:Totally 111 patients were divided into three groups according to platelet count:(1)100×109/L(n=26,23.4%).No statistically significant difference was found in the aggregate size of platelets[group 1:41.0(31.8–67.3)μm 2;group 2:47.0(33.8–71.3)μm 2;and group 3:47.0(34.0–66.0)μm 2;P=0.60]and no significant correlation was found between aggregate size and platelet count(Spearman r=0.07;P=0.47).Surface coverage was 4.1%(2.8%–6.7%),8.5%(4.0%–10.0%),and 9.0%(7.1%–12.0%)(Pdemonstrated for platelet function ***:Platelet function is preserved even in the presence of thrombocytopenia,including in the patients with post-EVL bleeding.

关键词： Cirrhosis Hemostasis Thrombocytopenia Platelet aggregation Endoscopy Hemorrage