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Different no-till grain production systems with Urochloa *** soil microbial community structure,biomass and activity in a tropical Ultisol

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Soil Ecology Letters 2024年第1期6卷 119-129页

作者： Matheus Emannuel oliveira Vieira Lucas dantas Lopes France Mario Costa Viviane Talamini Edson Patto Pacheco Marcelo Ferreira Fernandes PPGAGRI Universidade Federal de SergipeAv.Marechal Rondons/n-49100-000-Sao CristovaoSEBrazil Embrapa Coastal Tablelands Av Govemador Paulo Barreto de Menezesn°3250-49025-040-AracajuSEBrazil

Integrated grain cropping systems promote soil health(SH)and *** biomass and activity(MBA)and community structure(MCS)are key to *** of maize with Urochloa pastures strongly impacts MBA and *** is more sensitive than MCS to shifts in grain cropping *** under continuous Urochloa increased microbial activity and AMF *** soils are prone to *** of conservation agricultural practices is essential to improve soil health,which is influenced by soil *** this study we analyzed shifts in microbial biomass and activity(MBA)and microbial community structure(MCS)based on fatty acid methyl esthers(FAMEs)between five no-till agricultural practices:maize monoculture(MM);maize annualy intercropped with Urochloa decumbens(M/Ud);M/Ud with soybean rotation every other year(M/Ud-S);M/Ud keeping the pasture for the next two years(M/Ud-Ud-Ud);and maize intercropped with *** keeping the pasture for the next two years(M/Ur-Ur-Ur).Results indicated that MBA was affected by the inclusion of Urochloa intercropping and by rotation with *** under a longer residence time with Urochloa in the field had higherβ-glucosidase activity and soil basal respiration,indicating a greater microbial *** was less affected than MBA by the investigated cropping *** changed only in the continuous pasture systems,which were enriched in arbuscular mycorrhyzal fungi(AMF).Additionally,the continuous pasture systems had lower microbial stress ratios than the other agricultural *** sum,our study showed that utilization of Urochloa *** longer periods in no-till agricultural practices contributes to increase microbial activity,AMF abundance and decrease microbial stress *** changes are primarily beneficial for soil health.

关键词： crop-pasture integration crop rotation no-tillage soil health microbial ecology

Partition coefficient prediction of Baker's yeast invertase in aqueous two phase systems using hybrid group method data handling neural network

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Chinese Journal of Chemical Engineering 2017年第5期25卷 652-657页

作者： Carlos Eduardo de Araújo Padilha Sérgio dantas de oliveira Júnior Domingos Fabiano de Santana Souza Jackson Araújo de oliveira Gorete Ribeiro de Macedo Everaldo Silvino dos Santos Laboratory of Biochemical Engineering Chemical Engineering DepartmentFederal University of Rio Grande do Norte (UFRN)

A hybrid GMDH neural network model has been developed in order to predict the partition coefficients of invertase from Baker's yeast. ATPS experiments were carried out changing the molar average mass of PEG(1500–6000 Da), p H(4.0–7.0), percentage of PEG(10.0–20.0 w/w), percentage of MgSO_4(8.0–16.0 w/w), percentage of the cell homogenate(10.0–20.0 w/w) and the percentage of MnSO_4(0–5.0 w/w) added as cosolute. The network evaluation was carried out comparing the partition coefficients obtained from the hybrid GMDH neural network with the experimental data using different statistical metrics. The hybrid GMDH neural network model showed better fitting(AARD = 32.752%) as well as good generalization capacity of the partition coefficients of the ATPS than the original GMDH network approach and a BPANN model. Therefore hybrid GMDH neural network model appears as a powerful tool for predicting partition coefficients during downstream processing of biomolecules.

关键词： Partitioning Invertase Aqueous Two Phase System GMDH Neural network

Recovery of polyphenols from camu-camu(Myrciaria dubia ***)depulping residue by cloud point extraction

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Chinese Journal of Chemical Engineering 2018年第12期26卷 2471-2476页

作者： Carlos Eduardo de Araujo Padilha Juliana Chris Silva de Azevedo Francisco Caninde de Sousa Junior Sergio dantas de oliveira Junior Domingos Fabiano de Santana Souza Jackson Araujo de oliveira Gorete Ribeiro de Macedo Everaldo Silvino dos Santos Laboratory of Biochemical Engineering Chemical Engineering department Federal University of Rio Grande do Notre(UFRN)NatalRNBrazil Laboratory of Food Bioactive Compounds and Dairy Technology Chemical Engineering DepartmentFederal University of Rio Grande do Notre(UFRN)NatalRNBrazil

In this study the potential of cloud point extraction formed by a non-ionic surfactant was used in order to separate polyphenols from industrial residues of camu-camu. The effects of operational conditions of the cloud point extraction(CPE) on the polyphenol recovery and volumetric ratio were investigated. The results showed a maximum recovery of 95.71% that was obtained using 7.0 wt% Triton X-114, native pH(3.25), and 80 wt%polyphenol extract at 30 °C. The use of cloud point extraction was successful to recover the polyphenols from agroindustrial residue since it is a simple as well as of low-cost technique.

关键词： Cloud point extraction Recovery Polyphenols Camu-camu depulping residue

Self-reported participation restrictions in normal hearing individuals in thyroid ontogeny: Evidence of subclinical changes

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Journal of Otology 2019年第1期14卷 6-11页

作者： Caio Le?nidas oliveira de Andrade Gabriela Carvalho Machado luan Paulo Franco Magalh?es Elen Pereira de Jesus Elaine Alves Matias Taíse Lima de oliveira Cerqueira Hélida Braga de oliveira Luciene da Cruz Fernandes Helton Estrela Ramos Crésio de Arag?o dantas Alves Postgraduate Program in Interactive Processes of Organs and Systems Institute of Health Science–Federal University of Bahia department of Life Sciences University of the State of Bahia Social Services Sister Dulce Institute of Health Science–Federal University of Bahia department of Speech Therapy Institute of Health Science–Federal University of Bahia department of Bioregulation Health & Sciences Institute Federal University Bahia (UFBA) Medical School Institute of Health Science–Federal University of Bahia

Purpose: To verify evidence of subclinical alterations through self-reported participation restrictions in normal hearing individuals and congenital hypothyroidism ***: An analytical, quantitative, cross-sectional exploratory study with a 1:1 ratio, consisting of a convenience sample of 86 normal hearing individuals with(n = 42) and without(n = 44) congenital hypothyroidism diagnosis. All participants underwent tonal and speech audiometry, immitance and distortion product otoacoustic emissions. The researchers excluded people with hearing loss, genetic syndromes and metabolic diseases. The instrument used for evaluate of self-reported participation restrictions was the HHIE-adapted questionnaire, composed of 25 questions, 12 of which were social domain and 13 emotional domain. Student's ttest and chi-square test were used for statistical analysis at a significance level of 5%.Results: There was a significant(p derate(40.5%)and higher prevalence of association with clinical factors and adherence to ***: The findings indicate that self-reported participation restrictions in normal hearing individuals with congenital hypothyroidism was more significant than in the non-exposed group, suggesting evidence of subclinical auditory abnormalities in this population.

关键词： Hearing Hearing loss Auditory perception Congenital hypothyroidism Surveys and questionnaires

Evaluation of calcined textile sludge as a stabilizing material for highway soil

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第5期7卷 688-699页

作者： Alice Gonzaga de oliveira Amanda Diniz Barros Leda Christiane de Figueiredo Lopes Lucena Adriano Elisio de Figueiredo Lopes Lucena Jonny dantas Patricio department of Civil Engineering Federal University of Campina GrandeCampina Grande 58429140Brazil

The textile industry is a pioneer in the industrialization process in Brazil and is relevant to the Brazilian economy. However, it also generates as operational residue a solid waste,commonly called textile sludge. Pavement construction, which mobilizes large volumes of soil, constitutes an alternative to the reuse of residue, especially when stabilization is involved. The use of stabilized soils with the addition of waste can provide technical,economic and environmentally friendly advantages. This research aimed to study the use of chemical stabilization technique with sludge and three additives(lime, cement and asphalt emulsion) applied in base and subbase of pavements. The scope of this study was divided into four phases, i) characterization tests, ii) physical stabilization, iii) chemical stabilization and determination of heavy metals in the sludge, and iv) addition of 10% of textile sludge and chemical stabilizers(lime, cement, and asphalt emulsion) in amounts of 3%, 5% and 7% as additives in a soil, based on the results obtained in the second phase. Test results indicated that the stabilization of mixtures of soil with textile sludge has the potential to be used in pavement layers(base and subbase). The addition of cement promotes the best chemical stabilization for the sludge. The use of textile sludge stabilization presents greater environmental benefits, given the malfunctions and problems that the incorrect waste disposal can cause to the environment.

关键词： Road engineering Soil stabilization Additives Textile sludge Pavement materials Chemical stabilization

Time-dependent impact of a high-fat diet on the intestinal barrier of male mice

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World Journal of Methodology 2024年第1期14卷 114-123页

作者： Carolline Santos Miranda Daiana Araujo Santana-oliveira Isabela Lopes Vasques-Monteiro Nathan Soares dantas-Miranda Jade Sancha de oliveira Glauser Flavia Maria Silva-Veiga Vanessa Souza-Mello department of Anatomy Rio de Janeiro State UniversityRio de Janeiro 20551030Brazil

BACKGROUND Excessive saturated fat intake compromises the integrity of the intestinal mucosa,leading to low-grade inflammation,impaired mucosal integrity,and increased intestinal permeability,resulting in the migration of lipopolysaccharide(LPS)to other *** To evaluate the chronic effects(at 10 and 16 wk)of a high-fat diet(HFD)(with 50%energy as fat)on the phylogenetic gut microbiota distribution and intestinal barrier structure and protection in C57BL/6 *** Forty adult male mice were divided into four nutritional groups,where the letters refer to the type of diet(control and HFD or HF)and the numbers refer to the period(in weeks)of diet administration:Control diet for 10 wk,HFD for 10 wk,control diet for 16 wk,and HFD for 16 *** sacrifice,biochemical,molecular,and stereological analyses were *** The HF groups were overweight,had gut dysbiosis,had a progressive decrease in occludin immunostaining,and had increased LPS *** progression reduced the number of goblet cells per large intestine area and Mucin2 expression in the HF16 group,consistent with a completely disarranged intestinal ultrastructure after 16 wk of HFD *** Chronic HFD intake causes overweight,gut dysbiosis,and morphological and functional alterations of the intestinal barrier after 10 or 16 ***-dependent reductions in goblet cell numerical density and mucus production have emerged as targets for countering obesity-driven intestinal damage.

关键词： High-fat diet Intestine Ultrastructure Goblet cells Gut microbiota

Utilization of Pineapple Crown Fiber and Recycled Polypropylene for Production of Sustainable Composites

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Journal of Renewable Materials 2020年第10期8卷 1327-1341页

作者： Alexandra Augusta Reichert Mariana Ribas de Sá Gabriela Escobar Hochmuller da Silva Cesar Augusto Gonçalves Beatrice AndréRicardo Fajardo Amanda dantas de oliveira Postgraduate Program in Materials Science and Engineering(PPGCEM) Federal University of Pelotas(UFPel)Pelotas96075-630Brazil Technology development Center(CDTec) Materials EngineeringFederal University of Pelotas(UFPel)Pelotas96075-630Brazil Postgraduate Program in Materials Science and Engineering(PPGCEM) Federal University of São Carlos(UFSCar)São Carlos13565-905Brazil Laboratory of Technology and development of Composites and Polymeric Materials Federal University of Pelotas(UFPel)Pelotas96010-900Brazil

Nowadays,the production of consumer goods is based on the use of non-renewable raw materials,which in recent years has been performing as a problem for the *** the large number of available biofibers in nature,their use in the development of polymeric composites has inevitably emerged,it is also necessary to take into account the countless discarded plastics that still have the potential to be *** this work,fibers were extracted from pineapple crown residues and utilized to compose sustainable composites using recycled polypropylene from cups discarded in the trash as a ***,it is known that for good performance,it is necessary to achieve a good chemical interaction between the fiber and the *** order to improve this interaction,alkaline mercerization treatment was carried out on the surface of the fibers removing some components incompatible with the *** this work,the effect of the mercerization treatment on the properties of the fibers was studied,as well as their interaction with the *** effect of fiber concentration on the mechanical and thermal properties of composites was also *** of 5 and 7 wt%were used for both natural and mercerized fibers.A decrease in the number of degradation stages was observed through thermogravimetry analyses(from four in natural fiber to two in mercerized fibers),showing that the mercerization performed on the fibers was *** increase in the degree of crystallinity of mercerized fibers was also observed through the results of X-ray *** techniques indicate that amorphous compounds,such as hemicellulose and lignin,were partially *** the tensile test,it could be noted that all composites presented higher values of de elastic modulus than recycled polypropylene without added load;however,there were no differences in the elastic modulus between the different types of fibers and load ***,it is interesting to use fibers as r

关键词： Recycling composites polypropylene biofibers pineapple crown

Correlations among large igneous provinces related to the West Gondwana breakup:A geochemical database reappraisal of Early Cretaceous plumbing systems

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Geoscience Frontiers 2023年第1期14卷 181-206页

作者： Antomat A.Macêdo Filho Maria Helena B.M.Hollanda Stephen Fraser Alisson L.oliveira Alanny C.C.Melo Alana R.dantas Instituto de Geociências Universidade de São Paulo05508-080São PauloBrazil W.H.Bryan Mining&Geology Research Centre Sustainable Minerals InstituteThe University of QueenslandSt Lucia CampusQLD 4072Australia Programa de Pós-Graduação em Geodinamica e Geofisica Universidade Federal do Rio Grande do NorteCampus Universitário S/NLagoa Nova59078-970 NatalRNBrazil

The opening and spreading of the Atlantic Ocean between Africa and South America evolved during the Early Cretaceous and were preceded by dramatic tholeiitic(mafic)magmatism and minor silicic and alkaline *** features are presently recognized from the equatorial regions of Brazil and Africa to the Falklands and South *** southeastern South America,continental flood basalts and related plumbing systems constitute the ParanáMagmatic Province(PMP),whose African counterpart is the Etendeka Magmatic Province(EMP).In northeastern Brazil,dike swarms and sill complexes compose the Equatorial Atlantic Magmatic Province(EQUAMP).As a common feature,these provinces are chemically represented by two prevalent magma types:(1)tholeiitic basalts and basaltic andesites with lowTi(TiO_(2)desites with high Ti(TiO_(2)>~2 wt.%)and incompatible element *** Ti tholeiites are relevant in the northern PMP and EMP,and dominant in *** rocks(SiO_(2)=57-65 wt.%)interpreted as byproducts of assimilation and/or fractional crystallization(AFC)processes from high Ti tholeiitic magmas,are scarce(but present)in all three *** accurate analysis of multivariable databases collected from the literature for dikes and sills,including major and trace element and radiogenic isotope data,reveals close similarities in their geochemical *** a paleogeographic reconstruction of West Gondwana,the intrusive remnants of the PMP,EMP and EQUAMP are spread over an area of nearly 10×10^(6)km^(2).forming perhaps the most extensive set of plumbing systems on Earth,with a relatively consistent chronology based on a vast collection of K-Ar and^(40)Ar/^(39)Ar data available in the *** work provides the first c

关键词： LIP-related plumbing systems Continental tholeiites Paraná-Etendeka EQUAMP Self-organizing maps

Concordance of the point-of-care circulating cathodic antigen test for the diagnosis of intestinal schistosomiasis in a low endemicity area

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Infectious Diseases of Poverty 2019年第3期8卷 99-100页

作者： Sergei Rodrigo Magalhaes de Sousa Isabelle Helena Lima Dias Alvaro luan Santana Fonseca Bianca Rodrigues Contente Joyce Favacho Cardoso Nogueira Tatyellen Natasha da Costa oliveira Stefan Michael Geiger Martin Johannes Enk Programa de Pos-Graduacao Strictu Sensu em Biologia Parasitaria na Amazonia da Universidade do Estado do Para Tv.Perebebui2623-MarcoBelemPA 66087Brazil Laboratorio de Parasitoses Intestinais Esquistossomose e Malacologia(LPIEM)Secgao de ParasitologiaInstituto Evandro Chagas/SVS/MSAnanindeuaParaBrazil

Background:The Kato-Katz technique is recommended worldwide for the diagnosis of intestinal schistosomiasis,detecting parasite eggs in feces of infected ***,new tests have been developed in order to facilitate diagnosis,*** detection of specific antigens secreted by schistosomes,such as the circulating cathodic antigen(CCA).The aim of this study was to evaluate the performance of the point-of-care circulating cathodic antigen test(POC-CCA)compared to the Kato-Katz technique in a low prevalence area in the Amazon Region,located in the municipality of Primavera,State of Para,***:Positivity rates of the POC-CCA test and the Kato-Katz technique were *** sensitivity,specificity,accuracy and kappa coefficient were determined by comparing both *** reference standard was established using 16 Kato-Katz slides,12 of the first fecal sample,two of the second and two of the third *** study also included the concordance between POC-CCA results and different numbers and combinations of Kato-Katz ***:The prevalence of schistosomiasis according to the reference standard or POC-CCA test reached a rate of 9.4%or 23.9%,respectively,among a total of 372 *** positivity rates by the Kato-Katz technique increased from 2.4 to 9.4%,according to the increase in the number of slides examined and fecal samples colleaed.A sensitivity of 55.6%,specificity 76.9%,accuracy 76%and k coefficient of 0.06 was observed by comparing one slide of the first sample and *** 6 slides from three different samples,two slides of each,with POC-CCA resulted in a sensitivity of 583%,specificity 78.4%,accuracy 77%and k coefficient of ***,the comparison of 16 slides from three different samples with POC-CCA revealed a sensitivity of 65.7%,specificity 80.4%,accuracy 79%,and k coefficient of ***:The immunochromatographic test has the potential to be an important tool to combat schistosomiasis because of its practi

关键词： Schistosoma mansoni Kato-Katz POC-CCA Accuracy Diagnosis Low prevalence area