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A large epeiric methanogenic Bambuí sea in the core of Gondwana supercontinent?

Geoscience Frontiers 2021年第1期12卷 203-218页

作者： sergio caetano-filho Pierre Sansjofre Magali Ader Gustavo M.Paula-Santos Cristian Guacaneme Marly Babinski Carolina Bedoya-Rueda Matheus Kuchenbecker Humberto L.S.Reis Ricardo I.F.Trindade Universidade de Sao Paulo Instituto de GeocienciasRua do Lago562-Sao Paulo05508-080Brazil MNHN Sorbonne UniversiteCNRS UMR 7590Institut de Mineralogiede Physique des Materiaux et de Cosmochimie75005ParisFrance Universite de Paris Institut de Physique du Globe de ParisCNRSF-75005ParisFrance Universidade Estadual de Campinas Instituto de GeocienciasRua Carlos Gomes250-Campinas13083-855Brazil Universidade Federal dos Vales do Jequitinhonha e Mucuri Instituto de Ciencia e TecnologiaLaboratorio de Estudos TectonicosRodovia MGT 367Km 583-Diamantina39100-000Brazil Universidade Federal de Ouro Preto Departamento de Geologia-Escola de MinasLaboratiorio de Modelagem TectonicaCampus Morro do Cruzeiro-Ouro Preto35400-000Brazil Universidade de Sao Paulo Instituto de AstronomiaGeofísica e Ciencias AtmosfericasRua do Matao1226-Sao Paulo05508-090Brazil

Carbon isotope compositions of both sedimentary carbonate and organic matter can be used as key proxies of the global carbon cycle and of its evolution through time,as long as they are acquired from waters where the dissolved inorganic carbon(DIC)is in isotope equilibrium with the atmospheric ***,in shallow water platforms and epeiric settings,the influence of local to regional parameters on carbon cycling may lead to DIG isotope variations unrelated to the global carbon *** may be especially true for the terminal Neoproterozoic,when Gondwana assembly isolated waters masses from the global ocean,and extreme positive and negative carbon isotope excursions are recorded,potentially decoupled from global *** improve our understanding on the type of information recorded by these excursions,we investigate the pairedδ^13Ccarb andδ^13Corg evolution for an increasingly restricted late Ediacaran-Cambrian foreland system in the West Gondwana interior:the basal Bambui *** succession represents a 1~(st)-order sedimentary sequence and records two majorδ^13Ccarb excursions in its two lowermost lower-rank *** basal cap carbonate interval at the base of the first sequence,deposited when the basin was connected to the ocean,hosts antithetical negative and positive excursions forδ^13Ccarb andδ^13Corg,respectively,resulting inΔ^13C values lower than 25‰.From the top of the basal sequence upwards,an extremely positiveδ^13Ccarb excursion is coupled toδ^13Corg,reaching values of+14‰and-14‰,*** positive excursion represents a remarkable basin-wide carbon isotope feature of the Bambui Group that occurs with only minor changes inΔ^13C values,suggesting change in the DIC isotope *** argue that this regional isotopic excursion is related to a disconnection between the intrabasinal and the global carbon *** extreme carbon isotope excursion may have been a product of a disequilibria between the basin DIC and atmospheric CO2

关键词： Methanogenesis Ediacaran Cambrian Carbon isotopes Sao Francisco Basin Bambui Group

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Narrow-band imaging without magnification for detecting early esophageal squamous cell carcinoma

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World Journal of Gastroenterology 2011年第39期17卷 4408-4413页

作者： Edson Ide Fauze Maluf-filho Dalton Marques Chaves sergio Eiji Matuguma Paulo Sakai University of So Paulo Gastrointestinal Endoscopy Unit

AIM：To compare narrow-band imaging（NBI）without image magnification,and chromoendoscopy with Lugol＇s solution for detecting high-grade dysplasia and intramu-cosal esophageal squamous cell carcinoma（SCC）in patients with head and neck ***：This was a prospective observational study of 129 patients with primary head and neck tumors consecutively referred to the Gastrointestinal Endoscopy Unit of Hospital das Clínicas,Sao Paulo University Medical School,Brazil,between August 2006 and Feb-ruary *** examinations with NBI and Lugol chromoendoscopy were consecutively performed,and the discovered lesions were mapped,recorded and sent for *** results of the three methods were compared regarding sensitivity,specificity,accuracy,positive predictive value,negative predictive value,positive likelihood value and negative likelihood ***：Of the 129 patients,nine（7%）were diag-nosed with SCC,5 of which were in situ and 4 which were *** carcinomas were detected through NBI and Lugol *** 4 le-sions were diagnosed through conventional examination,all of which were larger than 10 ***：NBI technology with optical filters has high sensitivity and high negative predictive value for detecting superficial esophageal SCC,and produces results comparable to those obtained with 2.5%Lugol chromoendoscopy.

关键词： Gastrointestinal endoscopy Squamous cell carcinoma Esophageal neoplasms Diagnosis Lugol's solution

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Ultrastructural features of the hypopharyngeal glands in the social wasp Polistes versicolor （Hymenoptera： Vespidae）

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Insect Science 2008年第3期15卷 277-284页

作者： Fabio Barros Britto Flavio Henrique caetano Universidade Estadual Paulista Julio de Mesquita filho Instituto de Bioci~ncias de Rio Claro - Depto. de Biologia Rio Claro SP Brazil

The wasps of the genus Polistes have been considered the key to understanding the evolution of social behavior in Hymenoptera. Several studies have shown that the development of organized insect societies was accompanied by the evolution of structures like exocrine glands, which became specialized to perform specific functions. This article investigates the ultrastructural and cytochemical features of the hypopharyngeal glands of Polistes versicolor. These glands have been studied in depth in social bees, where they occur only in nurses and produce the royal jelly. Our results＇ revealed that these glands basically did not vary among individuals or between sexes. They are constituted by spherical cells, each with a large nucleus and well-developed rough endoplasmic reticulum. Secretion vesicles are abundant, but lipid droplets were not observed, indicating that these glands may not have a role in pheromone synthesis. Acid phosphatase was detected in lysosomes, and also flee in the cytosol, but did not seem to be related with cell death. Thus, our results suggest that the hypopharyngeal glands ofP. versicolor may not have a specialized social role, but could produce digestive enzymes.

关键词： cellular cycle cytochemistry hypopharyngeal glands morphology Polistes,wasps

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Differences in viral kinetics between genotypes 1 and 3 of hepatitis C virus and between cirrhotic and non-cirrhotic patients during antiviral therapy

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World Journal of Gastroenterology 2006年第45期12卷 7271-7277页

作者： José Eymard Medeiros-filho Isabel Maria Vicente Guedes de Carvalho Mello Joo Renato Rebello Pinho Avidan U Neumann Fernanda de Mello Malta Luiz caetano da Silva Flair José Carrilho Hepatology Branch Department of Gastroenterology University of So Paulo School of Medicine So Paulo Brazil Viral Immu-nology Laboratory Instituto Butantan So Paulo Brazil Hepatology Branch Department of Gastroenterology University of S?o Paulo School of Medicine So Paulo Brazil Faculty of Life Sciences Bar-Ilan Univer-sity Ramat-Gan Israel Virology Branch Instituto Adolfo Lutz So Paulo Brazil

AIM： TO evaluate the impact of hepatitis C virus （HCV） infection with genotype 1 or 3 and the presence or absence of liver cirrhosis （LC） in the early viral kinetics response to treatment. METHODS： Naive patients （n = 46） treated with interferon-α （IFN-α） and ribavirin and followed up with frequent early HCV-RNA determinations were analysed. Patients were infected with genotype 1 （n = 28, 7 with LC） or 3 （n = 18, 5 with LC）. RESULTS： The first phase decline was larger in genotype 3 patients than in genotype 1 patients （1.72 vs 0.95 log IU/mL, P 〈 0.001）. The second phase slope decline was also larger in genotype 3 patients than in genotype 1 patients （0.87 vs 0.15 log/wk, P 〈 0.001）. Differences were found in both cirrhotic and non-cirrhotic patients. Genotype 1 cirrhotic patients had a slower 2^nd phase slope than non-cirrhotic patients （0.06 vs 0.18 log/wk, P 〈 0,02）. None of genotype 1 cirrhotic patients had a 1^st phase decline larger than 1 log （non-cirrhotic patients： 55%, P 〈 0.02）. A similar trend toward a slower 2nd phase slope was observed in genotype 3 cirrhotic patients but the 1^st phase slope decline was not different. Sustained viral response was higher in genotype 3 patients than in genotype 1 patients ,（72% vs 14%, P 〈 0.001） and in genotype 1 non-cirrhotic patients than in genotype 1 cirrhotic patients （19% vs 0%）. A second phase decline slower than 0.3 log per week was predictive of non-response in all groups. CONCLUSION： Genotype 3 has faster early viral decline than genotype 1. Cirrhosis correlates with a slower 2nd phase decline and possibly with a lower 1^st phase slope decline in genotype 1 patients.

关键词： Hepatitis C virus Treatment Early kinetics Cirrhosis Genotypes

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Preparation of Bi_(4)Ti_(3)O_(12)(BIT)Ceramics via a High-Energy Ball Milling Process Doped with Multi-Walled Carbon Nanotubes(MWNTs)

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Materials Sciences and Applications 2013年第9期4卷 549-555页

作者： Alexandre Goncalves Pinheiro Gilberto Dantas Saraiva Josué Mendes filho Antonio sergio Bezerra Sombra Faculdade de Educacao Ciencias e Letras do Sertao Central Universidade Estadual do CearáQuixadáBrazil Departamento de Fisica Universidade Federal do CearáFortalezaBrazil

We prepared the Nano-sized bismuth titanate Bi4Ti3O12 (BIT) powders, through a high-energy ball milling process from their oxides Bi2O3 and TiO2. This BIT phase can be formed after a milling process for 40 min. With an increasing milling time, this particle size of mixture is gradually reduced, thus, we have mostly an amorphous phase. The BIT ceramics were duly obtained by sintering the synthesized powders at temperatures ranging from 850°C to 1000°C. The BIT ceramics sintered at 1020°C for 1 h, exhibiting a density with 7.52 g/cm3 of a crystaline phase and a dielectric of K = 288.11 (100 Hz), as well as a dielectric loss of 0.05 (100 kHz). The High-energy ball milling process is a promising way to prepare BIT ceramics. After the preparation of the BIT, we doped it with the Multi-Walled Carbon Nanotubes which are properly obtained by a chemical vapour deposition (CVD), using nickel as a catalyst, as well as using acetilene at 720°C, and then proceeded with the dielectric and optical measurements.

关键词： Bi_(4)Ti_(3)O_(12) Ceramics Ferroelectric High-Energy Ball Milling Sintering Carbon Nanotubes MWNT

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Increased Nitrogen Retention after Trans-Operative Intravenous Amino Acid and Glucose Infusion, without Changes in Urinary Amino Acid, Adrenaline and Plasma Urea or Glucose

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Health 2014年第10期6卷 1012-1018页

作者： Ernann Tenorio Albuquerque-filho Mario Jorge Juca Gilberto Joao Padovan Julio sergio Marchini Division of Nutrology Department of Internal Medicine Faculty of Medicine of Ribeir&atilde o Preto University of S&atilde o Paulo Ribeir&atilde o Preto Brazil Maceió University Hospital Coloproctology Alagoas Federal University Maceió Brazil Maceió University Hospital Federal University and Coordination Alagoas State Urgency Service Maceió Brazil

Objective: Nutritional deficiencies are associated with increased morbidity and mortality during and after surgery. The present study evaluated nitrogen retention after transoperative intravenous infusion of amino acids and glucose. Design: Prospective study. Setting: Large community hospital. Patients: 18 randomly chosen patients undergoing medium or major surgeries. Interventions and Measurements: The experimental design included a 12-hour period before surgery (P1), a trans-operative period of 6 hours (P2), an early postoperative period (P3, 18 hours), and a late postoperative period (P4, 24 hours). Urinary amino acid and nitrogen were analyzed from P1 through P4. Group I, nine patients, received Ringer’s lactate solution with 5% glucose, and Group II, another nine patients, received a 6.6% amino acid and 16.6% glucose solution over a 6-hour trans-operative period (P2) starting from the anesthesia procedures. All surgical procedures lasted a maximum of 3 hours. Results: There was no statistically significant difference in urinary amino acid or adrenaline excretion between P1 and P4 in either group. Nitrogen excretion values were also similar for both groups, i.e., 0.39 ± 0.16 and 0.39 ± 0.28 g/hour, respectively. The nitrogen balance showed greater nitrogen retention (﹣0.25 ± 0.24 g/hour) in the group receiving the amino acid infusion compared to the group receiving Ringer’s lactate solution (﹣0.59 ± 0.26 g/hour) (P < 0.05). Blood plasma urea nitrogen and glycaemia did not increase at the end of the study (P4 period) in either group. Conclusion: These data indicate that trans-operative infusion of glucose and amino acids can be beneficial for patients submitted to surgical stress in terms of nitrogen retention.

关键词： Nutrition Surgery Protein Metabolism Amino Acids Adrenaline

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Influence of Cutting Stages and Sugarcane Varieties on Sucrose Content in a Brazilian Power Plant with Mechanized Harvesting

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Journal of Agricultural Science and Technology(B) 2018年第4期8卷 220-227页

作者： Ricardo Ghantous Cervi sergio Augusto Rodrigues Ernee Kozyreff filho Paulo Andre de Oliveira Department of Production Engineering Sao Paulo State University (UNESP) Itapeva Sao Paulo 18409-010 Brazil Department of Bioprocesses and Biotechnology Sao Paulo State University (UNESP) Botucatu Sao Paulo 18610-307 Brazil Department of Agribusiness State Center for Technological Education Paula Souza Botucatu Sao Paulo 18606-855 Brazil

This study, carried out in a sugarcane mill located in the center-west region of Sao Paulo state, Brazil, aimed to evaluate the association of sucrose amount （POL%） with sugarcane varieties and cutting stages using mechanized harvesting. A two-way analysis of variance （ANOVA）, complemented by multiple comparison tests, was used in order to identify the effects of variety types and cutting stages on the sugarcane POL% content. An interaction between the sugarcane variety and the cutting stage was observed; therefore, both two factors cannot be independently evaluated regarding POL%. In addition, it was found that the sucrose amount from the plant production in the evaluated period presented significant differences between the cutting stages only for one variety, namely CTC2, which was different from the others in most of the cutting stages. Considering the observed results, it can be concluded that analyzing sucrose amount statistically in the mill production can allow producers to posteriorly better monitor information on the sugarcane varieties harvested under mechanized processes.

关键词： Mechanized harvesting sugarcane cultivation sugarcane POL%.

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香椿的树木年轮宽度与超年生殖行为的相互关系:对树轮学研究的警示

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Journal of Plant Ecology 2024年第1期17卷 165-171页

作者： Monique Silva Costa Thaís Jorge de Vasconcellos Claudio sergio Lisi Arno Fritz Neves Brandes Mario Tomazello-filho Cátia Henriques Callado Instituto de Aplicação Fernando Rodrigues da Silveira Universidade do Estado do Rio de JaneiroRua Barão de Itapagipe96.Rio Comprido 20261-005Rio de JaneiroBrazil Laboratório de Anatomia Vegetal Universidade do Estado do Rio de JaneiroRua São Francisco Xavier524Maracanã20550-013Rio de JaneiroBrazil Departamento de Biologia Universidade Federal de SergipeAv.Marechal Rondon s/n-Rosa Elze.São Cristóvão 49100-000SergipeBrazil Departamento de Biologia Geral Universidade Federal FluminenseRua Prof.Marcos Waldemar de Freitas ReisS/N.Gragoatá24210-201Rio de JaneiroBrazil Escola Superior de Agricultura Luiz de Queiroz Universidade de São PauloAv.Pádua Dias11.Piracicaba 13418-900São PauloBrazil

资源分配到生殖过程涉及到生态和进化因素,可能会减少植物的营养生长。这种相互关系在自然界中不容易观察到,因为有许多参数可以限制生殖结构的产生或生物量的增加。我们将香椿(Cedrela odorata L.,楝科)在里约热内卢州大西洋森林中的... 详细信息

资源分配到生殖过程涉及到生态和进化因素,可能会减少植物的营养生长。这种相互关系在自然界中不容易观察到,因为有许多参数可以限制生殖结构的产生或生物量的增加。我们将香椿(Cedrela odorata L.,楝科)在里约热内卢州大西洋森林中的树木年轮宽度与超年生殖行为相关联。总体而言,生殖结构的发育发生在湿润的年份,在生长季初期没有出现水分亏缺。然而,在这些年份,树木年轮宽度较小。这些结果可能与树木年轮宽度与当地气候之间缺乏相关性有关。因此,我们强调在径向生长研究中纳入生殖数据的重要性,以扩大对热带森林生长变异性的理解。

关键词：植物生长策略树木年轮学树木生态学生殖权衡

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Deep sedation during gastrointestinal endoscopy: Propofol-fentanyl and midazolam-fentanyl regimens

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World Journal of Gastroenterology 2013年第22期19卷 3439-3446页

作者： Marcos Eduardo Lera dos Santos Fauze Maluf-filho Dalton Marques Chaves sergio Eiji Matuguma Edson Ide Gustavo de Oliveira Luz Thiago Ferreira de Souza Fernanda C Simoes Pessorrusso Eduardo Guimares Hourneaux de Moura Paulo Sakai Department of Gastroenterology Hospital das Clínicas University of Sao Paulo Medical School Sao Paulo CEP 05403-900 Brazil Cancer Institute of Sao Paulo State Sao Paulo CEP 01246-000 Brazil

AIM: To compare deep sedation with propofol-fentanyl and midazolam-fentanyl regimens during upper gastrointestinal endoscopy. METHODS: After obtaining approval of the research ethics committee and informed consent, 200 patients were evaluated and referred for upper gastrointestinal endoscopy. Patients were randomized to receive propofol-fentanyl or midazolam-fentanyl (n = 100/group).We assessed the level of sedation using the observer's assessment of alertness/sedation (OAA/S) score and bispectral index (BIS). We evaluated patient and physician satisfaction, as well as the recovery time and complication rates. The statistical analysis was performed using SPSS statistical software and included the MannWhitney test, χ 2 test, measurement of analysis of variance, and the κ statistic. RESULTS: The times to induction of sedation, recovery, and discharge were shorter in the propofolfentanyl group than the midazolam-fentanyl group. According to the OAA/S score, deep sedation events occurred in 25% of the propofol-fentanyl group and 11% of the midazolam-fentanyl group (P = 0.014). Additionally, deep sedation events occurred in 19% of the propofol-fentanyl group and 7% of the midazolamfentanyl group according to the BIS scale (P = 0.039). There was good concordance between the OAA/S score and BIS for both groups (κ = 0.71 and κ = 0.63, respectively). Oxygen supplementation was required in 42% of the propofol-fentanyl group and 26% of the midazolam-fentanyl group (P = 0.025). The mean time to recovery was 28.82 and 44.13 min in the propofolfentanyl and midazolam-fentanyl groups, respectively (P < 0.001). There were no severe complications in either group. Although patients were equally satisfied with both drug combinations, physicians were more satisfied with the propofol-fentanyl combination. CONCLUSION: Deep sedation occurred with propofolfentanyl and midazolam-fentanyl, but was more frequent in the former. Recovery was faster in the propofol-fentanyl group.

关键词： Endoscopy Deep sedation Anesthetic administration Anesthetic dose Adverse effects

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Microcosm Study： Effect of Fe（II） Addition in Sawdust for Phosphorous Recovery from Eutrophic Aquatic Ecosystems

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Journal of Environmental Science and Engineering(A) 2017年第11期6卷 542-551页

作者： Glaucia Pantano Francisco Wendel Batista de Aquino Edenir Rodrigues Pereira-filho Antonio AparecidoMozeto Pedro sergio Fadini Chemistry Department Federal University of Sao Carlos Sao Carlos 13565-905 Brazil

The recovery of phosphorus in eutrophic water bodies adsorption in sawdust can be promoted by Fe（III） oxide-hydroxides is important to ensure water and food security, phosphorus biofllms. The main objective of this study was to analyze the influence of iron addition in sawdust on phosphorus adsorption. The microcosm experiment was performed with water and sediment samples from a eutrophic reservoir located in Barra Bonita/SP. Three control flasks （without bags） and 18 others as treatments （with two bags filled with sawdust, with or without previous Fe（II） addition） were assembled. The addition of iron did not promote greater phosphorus adsorption, the sawdust without previous iron addition had a total phosphorus concentration of 49μg·P·g^-1, while the sawdust with previous iron addition had 14.4μg.p.g^-1. The use of sawdust for the remediation of eutrophic water bodies is interesting, especially considering the low-cost and possibility of reuse as fertilizer in agriculture.

关键词： Phosphorus eutrophication remediation biosorbent iron.

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