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Duration and intensity of rainfall events with the same erosivity change sediment yield and runoff rates

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International Soil and Water Conservation Research 2021年第1期9卷 69-75页

作者： Wilk Sampaio de Almeida Steffen Seitz luiz Fernando Coutinho de oliveira Daniel fonseca de Carvalho Agronomy department Federal Institute of EducationScience and Technology of RondôniaCampus AriquemesRO 257km 13AriquemesRO76870-000Brazil department of Geosciences University of TübingenTübingenGermany Federal University of Lavras Department of Water Resources and Sanitation37200-000LavrasMGBrazil Federal Rural University of Rio de Janeiro Engineering DepartmentBR 465km 723897-000SeropédicaRJBrazil

The effect of different rainfall patterns on surface runoff,infiltration and thus soil losses and sediment concentrations are still in the focus of current *** most simulated rainfall experiments,pre-cipitation is applied at a fixed intensity for a fixed ***,the impact of rainfall patterns on soil erosion processes may be different varying the rainfall duration and intensity that produces an event with similar rainfall erosivity ***-five rainfall events were applied on micro-scale runoff plots in a soil covered with corn straw to evaluate the sediment yield and runoff *** different rainfall types were composed by association of duration(Dur)and intensity(IP)with the same erosivity *** Dur varied from 38 to 106 min and the IP varied from 75.0 to 44.6 mm h^(-1).The sediment yield varied from 1.89±1.26 g m^(-2) to 4.02±2.66 g m^(-2) and runoff ranged from 16.9±8.74 mm to 32.63±10.67 mm with highest rates occurring with high intensity and low *** highest rainfall intensity provides the maximum sediment yield(0.138 g m^(-2) min^(-1))and runoff rates(0.87 mm min^(-1)).The time to start surface runoff varied from 14 to 19.2 min and it was longer in treatments with longer durations and low precipitation *** difference was found in the amount of sediments applying rain with the same erosivity and different associations of duration and ***,the intensity and duration of the rain,with the same erosivity,altered the amount and time of *** rainfall experiments with con-stant intensity and fixed time,the erosion rates depend on the duration of the applied ***,the results of this study can contribute to the development of new perspectives in the design of water erosion experiments with simulated rain considering the duration,intensity and also the association of these variables to produce rainfall that delivery the same soil erosion capacity.

关键词： Simulated rainfall Rainfall pattern Water erosion Soil loss

Assessment of the Intertropical Convergence Zone over the Atlantic Ocean through an Algorithm Based on Precipitation

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Journal of Atmospheric Science Research 2024年第1期7卷 59-73页

作者： Natan Chrysostomo de oliveira Nogueira Pedro Henrique Gomes Machado Michelle Simões Reboita andré luiz Reis Reis Natural Resources Institute Federal University of ItajubáItajubáMinas Gerais37500-903Brazil

The Intertropical Convergence Zone(ITCZ)is a key atmospheric system on a global scale,primarily driven by trade wind convergence near the *** ITCZ plays a crucial role in modulating the climate of the borders of tropical continental *** instance,Northeastern Brazil experiences a climate influenced by the ITCZ over the Atlantic *** some periods,the ITCZ exhibits double bands,known as the double *** the features of the ITCZ have been described using various approaches and atmospheric variables,there is still a lack of regional studies focusing on the ITCZ and double ITCZ in the Atlantic *** this context,the main goals of this study are(1)to describe a simple algorithm based on precipitation to identify the ITCZ and double ITCZ,(2)to present a climatology(1997-2022)of the position,width,and intensity of these two convective bands,and(3)to investigate variabilities in the ITCZ characteristics associated with anomalies of sea surface temperature(SST)in the tropical Pacific and Atlantic *** double ITCZ typically occurs southward of the main cloud band,and between February and April,both bands are more distant(~4.5°).In the western sector of the Atlantic Ocean,the ITCZ and its double band extend to more southerly latitudes in austral *** the entire Atlantic basin,the annual mean of the latitudinal position,width,and intensity of the ITCZ is 4.9°N,4.2°,and 11 mm/day,respectively,while for the double ITCZ,it is 0.4°N,2.6°,10.3 mm/day,*** the SST anomalies in the Pacific Ocean(El Niño and La Niña episodes)affect more the ITCZ width,the SST anomalies in the Tropical South Atlantic affect both its position and width.

关键词： Double ITCZ Precipitation Latitudinal position Northeastern Brazil Atlantic Ocean ENSO

Efficacy of oral consumption of curcumin/Curcuma longa for symptom improvement in inflammatory bowel disease:A systematic review of animal models and a meta-analysis of randomized clinical trials

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BIOCELL 2022年第9期46卷 2015-2047页

作者： MARLA de CERQUEIRA ALVES MONISE oliveira SANTOS NASSIB BEZERRA BUENO ORLANDO ROBERTO PIMENTEL de ARAúJO MARíLIA oliveira fonseca GOULART FABIANA andréA MOURA Programa de Pós-Graduacao em Nutricao(PPGNUT) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil Instituto de Química e Biotecnologia(IQB) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil Programa de Pós-Gradua玢o em Ciências da Saúde(PPGCS) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil Programa de Pós-Gradua玢o da Rede Nordeste de Biotecnologia(RENORBIO) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil Programa de Pós-Gradua玢o em Ciências Médicas(PPGCM) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil

The roots of the vegetal Curcuma due to its high content of polyphenols,has been used successfully in several clinical *** review assessed the effect of curcumin/Curcuma longa on symptoms and metabolic changes in inflammatory bowel disease(IBD).A systematic review of animal models and randomized clinical trials(RCTs)was conducted by searching the following electronic databases:PubMed,CENTRAL,LILACS,Science Direct,and *** 997 found records,62 were *** than 90%of the animal studies reported an improvement in macroscopic,histologic and/or functional activity;80%identified decreased oxidative and/or inflammatory biomarkers in animals treated with *** the RCTs,intention-to-treat analysis showed that oral curcumin was effective in inducing clinical remission(n=281,RR:3.15 CI 95%[1.22–8.10]p=0.0017;i2=72.2%,p=0.006)and clinical response(n=259,RR:1.60 CI 95%[1.09–2.35]p=0.0017;i2=59.7%,p=0.042)but not endoscopic remission(n=161,RR:2.91 CI 95%[0.58–14.58]p=0.195;i2=72.7%,p=0.026).These results confirm that oral supplementation with curcumin/Curcuma longa has beneficial actions in animal colitis and,when associated with drug therapy,is effective in the treatment of patients with IBD.

关键词： Ulcerative colitis Crohn’s disease Oxidative stress Curcuma Turmeric

Numerical Study on the Effect of Submerged depth on the Horizontal Plate Wave Energy Converter

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China Ocean Engineering 2014年第5期28卷 687-700页

作者： Flávio Medeiros SEIBT Eduardo Costa COUTO Elizaldo Domingues dos SANTOS Liércio andré ISOLDI luiz Alberto oliveira ROCHA Paulo Roberto de Freitas TEIXEIRA Graduate Program of Ocean Engineering Universidade Federal do Rio Grande96203-900 Rio Grande RS Brazil Mechanical Engineering department Universidade Federal do Rio Grande do Sul90050-170 Porto Alegre RS Brazil

The growing search for clean and renewable energy sources has given rise to the studies of exploring sea wave energy. This paper is concerned with the numerical evaluation of the main operational principle of a submerged plate employed for the conversion of wave energy into electrical one. The numerical model used to solve the conservation equations of mass, momentum and transport of volume fraction is based on the finite volume method （FVM）. In order to tackle with the flow of mixture of air-water and its interaction with the device, the multiphase model volume of fluid （VOF） is employed. The purpose of this study is the evaluation of a numerical model for improvement of the knowledge about the submerged plate wave energy converter, as well as the investigation of the effect of the distance from the plate to the bottom of the sea （HP） on the performance of the converter. The simulations for several distances of the plate from the seabed show that the optimal efficiency is 64%, which is obtained for HP=0.53 m （88% of the depth）. This efficiency is 17% larger than that found in the worst case （HP=0.46 m, 77% of the depth）.

关键词： numerical simulation submerged plate wave energy conversion efficiency

Curcumin in inflammatory bowel diseases:Cellular targets and molecular mechanisms

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BIOCELL 2023年第11期47卷 2547-2566页

作者： AMYLLY SANUELLY DA PAZ MARTINS MARLA de CERQUEIRA ALVES ORLANDO ROBERTO PIMENTEL de ARAÚJO FABIANA oliveira DOS SANTOS CAMATARI MARÍLIA oliveira fonseca GOULART FABIANA andrÉA MOURA Rede Nordeste de Biotecnologia(RENORBIO) Instituto de química e BiotecnologiaUniversidade Federal de Alagoas(UFAL)Maceió57072-900Brasil Programa de Pós-graduação em Nutrição(PPGNUT) Faculdade de Nutrição(FANUT)Universidade Federal de Alagoas(UFAL)Maceió57072-900Brasil Programa de Pós-Graduação em Química e Biotecnologia(PPGQB) Instituto de química e BiotecnologiaUniversidade Federal de Alagoas(UFAL)Maceió57072-900Brasil Colegiado de Nutrição Universidade de Pernambuco(UPE)Campus PetrolinaPernambuco56328-900Brasil Programa de Pós-Graduação em Ciências da Saúde(PPGCS) Instituto de Ciências da SaúdeUniversidade Federal de Alagoas(UFAL)Maceió57072-900Brasil Programa de Pós-graduação em Ciências Médicas(PPGCM) Faculdade de MedicinaUniversidade Federal de Alagoas(UFAL)Maceió57072-900Brasil

Curcumin,a natural product,has exhibited promising effects in both animal models and clinical trials,interacting with a multitude of factors linked to Inflammatory Bowel Disease(IBD).These factors encompass cytokines,oxidative stress-associated enzymes,and modulation of the intestinal ***,curcumin has demonstrated therapeutic potential in animal models of colitis,wherein it exerts a negative regulatory influence on pivotal signaling pathways such as PI3/Akt,JAK/STAT,andβ-***,it inhibits the expression of proinflammatory enzymes and co-stimulatory molecules(including RANKL,ICAM-1,CD205,CD256,TLR4,among others),while curbing immune cell chemotaxis,thereby attenuating the characteristic neutrophil infiltration observed in *** facet of curcumin’s action involves its modulation of the intestinal ***,the microbiota itself contributes to beneficial biotrans formations of curcumin,thereby enhancing its effectiveness in IBD *** a clinical front,curcumin has demonstrated the ability to induce clinical and/or endoscopic remission without any reported toxic ***,curcumin warrants consideration as an adjunctive therapy in IBD *** clinical investigations should concentrate on meticulously evaluating curcumin’s impact on these precise therapeutic targets.

关键词： Curcuminoids Polyphenols CDAI scores Ulcerative colitis Antioxidant

Extraintestinal manifestations of inflammatory bowel disease, nitroxidative stress and dysbiosis: What is the link between them?

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BIOCELL 2021年第3期45卷 461-481页

作者： AMYLLY SANUELLY DA PAZ MARTINS SAMARA BOMFIM GOMES CAMPOS MARÍLIA oliveira fonseca GOULART FABIANA andrÉA MOURA Programa de Pós-Graduação da Rede Nordeste de Biotecnologia(RENORBIO) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil Programa de Pós-Graduação em Ciências da Saúde(PPGCS) Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil Programa de Pós-Graduação em Química e Biotecnologia(PPGQB/UFAL) Campus A.C.SimõesAvenida Lourival Melo Motas/nTabuleiro dos MartinsMaceióAL 57072-970Brazil Programa de Pós-Graduação em Nutrição(PPGNU/UFAL) Programa de Pós-Graduação em Ciências Médicas(PPGCM/UFAL)Universidade Federal de Alagoas(UFAL)MaceióAL 57072-970Brazil

Inflammatory bowel disease(IBD),which includes Crohn’s disease and ulcerative colitis,has a not yet completely defined aetiology and is characterized by a progressive chronic inflammation that involves nitroxidative stress and *** manifestations can occur and affect several organs,including the liver and bile ducts,joints,skin,eyes,and less frequently,the heart,brain,and kidneys,increasing the risk of morbidity and *** repercussions may be associated with the activity or severity of *** present review proposes to report and analyse the participation of dysbiosis and nitroxidative stress in the genesis of extraintestinal manifestations,aiming to contribute to a better understanding of the disease and to focus on the development of individualized preventive and therapeutic strategies.

关键词： Oxidative stress Microbiota Bacterial translocation Ulcerative colitis Crohn disease

Feasibility and safety of autologous bone marrow mononuclear cell transplantation in patients with advanced chronic liver disease

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World Journal of Gastroenterology 2007年第7期13卷 1067-1073页

作者： andre Castro lyra Milena Botelho Pereira Soares luiz Flavio Maia da Silva Marcos Fraga Fortes andré Goyanna Pinheiro Silva Augusto César de andrade Mota Sheilla A oliveira Eduardo lorens Braga Wilson andrade de Carvalho Bernd Genser Ricardo Ribeiro dos Santos luiz Guilherme Costa lyra Hos-pital Sao Rafael Salvador Bahia Brazil Centro de Pesquisas Goncalo Moniz Fundacao Oswaldo Cruz Salvador Bahia Brazil BGStats Consulting Graz Austria

AIM： To evaluate the safety and feasibility of bone marrow cell （BMC） transplantation in patients with chronic liver disease on the waiting list for liver transplantation. METHODS： Ten patients （eight males） with chronic liver disease were enrolled to receive infusion of autologous bone marrow-derived cells. Seven patients were classified as Child-Pugh B and three as Child-Pugh C. Baseline assessment included complete clinical and laboratory evaluation and abdominal MRI. Approximately 50 mL of bone marrow aspirate was prepared by centrifugation in a ficoll-hypaque gradient. At least of 100 millions of mononuclear-enriched BMCs were infused into the hepatic artery using the routine technique for arterial chemoembolization for liver tumors. Patients were followed up for adverse events up to 4 mo. RESULTS： The median age of the patients was 52 years （range 24-70 years）. All patients were discharged 48 h after BMC infusion. Two patients complained ofmild pain at the bone marrow needle puncture site. No other complications or specific side effects related to the procedure were observed. Bilirubin levels were lower at 1 （2.19 ± 0.9） and 4 mo （2.10 ± 1.0） after cell transplantation that baseline levels （238 ± 1.2）. Albumin levels 4 mo after BMC infusion （3.73 ± 0.5） were higher than baseline levels （3.47 ± 0.5）. International normalized ratio （INR） decreased from 1.48 （SD = 0.23） to 1.43 （SD = 0.23） one month after cell transplantation. CONCLUSION： BMC infusion into hepatic artery of patients with advanced chronic liver disease is safe and feasible. In addition, a decrease in mean serum bilirubin and INR levels and an increase in albumin levels are observed. Our data warrant further studies in order to evaluate the effect of BMC transplantation in patients with advanced chronic liver disease.

关键词： Bone marrow Cell transplantation Liverfailure Stem cell Cirrhosis

Aquatic Macrophytes detritus Quality and Sulfate Availability Shape the Methane Production Pattern in a Dystrophic Coastal Lagoon

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American Journal of Plant Sciences 2015年第10期6卷 1675-1684页

作者： andré luiz dos Santos fonseca Claudio Cardoso Marinho Francisco de Assis Esteves Instituto Federal de Educaç&atildeo Ciência e Tecnologia do Rio de Janeiro Rua Carlos Wenceslau Rio de Janeiro Brasil Laboratório de Limnologia Departamento de Biologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brasil NUPEM—Universidade Federal do Rio de Janeiro Macaé Brasil

Aquatic macrophytes usually show high productivity rate, especially in shallow environments, and may constitute the main source of organic matter to these ecosystems. The coastal lagoons are shallow environments that typically present a broad colonization by aquatic macrophytes. The organic matter derived from aquatic macrophytes consists of detritus and root exudates, from live plants. Methanogens are microorganisms that use labile organic matter (e.g. acetate) in the metabolism, releasing methane (CH4) as an end product. Assessing the influence of aquatic macrophytes on methanogenesis is fundamental to understanding the carbon cycle in shallow environments, such as coastal lagoons. A peculiarity of coastal lagoons that may also influence the methanogenesis is its proximity to the sea, providing the entrance of sulfate in the environment. The methanogenesis can be inhibited by the sulfate reduction when there is sulfate availability sulfate. In this context, we aimed to analyze the methane production in an aquatic macrophyte stand and in the limnetic region of a coastal lagoon, assessing the influence of quantity and quality of organic carbon and sulfate availability on methane production in the sediment profile. We observe that the presence of aquatic macrophytes benefits the methanogenesis, not only by detritus accumulation, but particularly by the release of root exudates from the living plants. The variation in quantity and quality of organic carbon is the main factor that controls the range and shape of the methane production curves. The availability of sulfate presents probably a secondary role, being important when the organic matter is not sufficient for the occurrence of methanogenesis and sulfate reduction simultaneously.

关键词： Methanogenesis Sediment Root Exudates Competition Shallow Environments

Crohn's disease in one mixed-race population in Brazil

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World Journal of Gastroenterology 2007年第33期13卷 4489-4492页

作者： Genoile oliveira Santana luiz Guilherme Costa Lyra Tamara Celi Almeida Santana Lidiane Bianca dos Reis Jorge Carvalho Guedes Maria Betania Toralles andré Castro Lyra Gastrohepatology Unit Federal University of Bahia Brazil Gastrohepatology Unit Hospital San Rafael BahiaBrazil Gastrohepatology Unit Federal University of Bahia Brazil Department of Medicine Federal University of Bahia Brazil Gastrohepatology Unit Hospital San Rafael BahiaBrazil department of Medicine Federal University of Bahia Brazil Gastrohepatology Unit Federal University of Bahia Brazil Department of Medicine Federal University of Bahia Brazil Genetic Unit Federal University of Bahia Brazil

AIM： To evaluate the classification and severity of Crohn＇s disease in different racial groups. METHODS： Patients with Crohn＇s disease from the outpatient clinic of the University Hospital Prof. Edgard Santos were enrolled in the study. This hospital is a reference centre for inflammatory bowel disease. Race was determined using self-identification. The Vienna＇s classification was applied for all subjects. The severity of Crohn＇s disease was determined according to the number of surgical procedures, hospital admissions in the last year and treatment with steroids and immunosuppressors. Statistical analysis was calculated using t test for means,χ^2 or F for proportions. A P value 〈 0.05 was considered to be significant. RESULTS： Sixty-five patients were enrolled. Non-white patients were more frequently diagnosed with Crohn＇s disease in the age less than 40 years than white patients. The behaviour of disease was similar in both groups with a high frequency of the penetrating form. There was a tendency for non-white patients to have a greater frequency of hospital admissions in the last year compared to white subjects. Non-whites also had a higher rate of colonic and upper gastrointestinal involvement, and were also more frequently on treatment with immunossupressors than white patients although this difference was not statistically significant. CONCLUSION： Non-white patients with Crohn＇s disease had an earlier diagnosis and appeared to have had a more severe disease Dresentation than white patients.

关键词： Racial group Brazil Race Inflammatory bowel disease Crohn's disease