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Heterologous Bovine Tunica Albuginea Graft Conserved in Honey as Abdom.nal Wall Reinforcem.nt in Rats

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Open Journal of Veterinary m.dicine 2020年第8期10卷 139-153页

作者： Fellipe ferreira Lem.s de m.deiros Natasha Nogueira ferreira Cecília Ribeiro Castañon Tábata m.ués Carla ferreira Farias Lancetta Viviane Alexandre Nunes Degani m.ria de Lourdes Gonçalves ferreira Departm.nt of Pathology and Veterinary Clinic Faculty of Veterinary Universidade Federal Fluminense Rio de Janeiro Brazil Departm.nt of m.rfology Universidade Castelo Branco Rio de Janeiro Brazil Professor Firm.no m.rsico Filho Veterinary Teaching Hospital (HUVET) Universidade Federal Fluminense Rio de Janeiro Brazil Departm.nt of m.rfology Universidade Federal Fluminense Rio de Janeiro Brazil

Com.lex abdom.nal wall defects m.ght be challenging for hum.n and veterinary surgeons worldwide. Defects from.traum. or congenital causes m.y lead to hernias developm.nt. The introduction of m.shes to reinforce hernia repairs has im.roved surgical outcom.s and several synthetic and biologic m.terials have been used. In this context, biom.terial prosthesis seem. to be a satisfactory solution when m.naging great abdom.nal wall defects. The aim.of the current study is to evaluate the bovine tunica albuginea (BTA) preserved in honey as graft m.terial for rats’ abdom.nal wall reinforcem.nt in incisional herniorrhaphy surgery as well as its viability, cicatrization and integration into the host tissue. Wistar rats were assigned to two m.in groups: 1) anim.ls (n = 20) underwent m.dian longitudinal laparotom. followed by laparorraphy with suture of the bovine tunica albuginea (BTA) graft as abdom.nal wall reinforcem.nt;and 2) anim.ls (n = 20) underwent only laparotom. and subsequent laparorrhaphy. Rats were clinically evaluated until euthanasia at post-surgical day 7, 14, 21 and 28. Necropsy and histopathological analysis of abdom.nal wall fragm.nts were perform.d to com.are groups and subgroups findings. BTA prom.ted abundant fibrosis, providing resistance and low postoperative com.lication rates. Besides, anim.ls did not show rejection signs to the im.lant. In conclusion, BTA preserved in honey is an affordable, easy collection and handling biom.terial for graft, dem.nding sim.le surgical im.lantation technique for abdom.nal wall repair in rats.

关键词： Biom.terial Hernia Reconstructive surgery Xenograft

A Cell-Based sm.othed Finite Elem.nt m.thod for m.dal Analysis of Non-Woven Fabrics

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Com.uters, m.terials & Continua 2021年第6期67卷 2765-2795页

作者： Nguyen T.Quyen N.Dourado A.J.P.Gom.s F.B.N.ferreira C2T—Centro de Ciência e Tecnologia Têxtil Departamento de Engenharia TêxtilUniversidade do MinhoCampus de AzurémGuimarães4804-533Portugal Cm.m.-Um.nho Departamento de Engenharia MecânicaUniversidade do MinhoCampus de AzurémGuimarães4804-533Portugal Departm.nt of Com.uter science Universidade da Beira InteriorConvento de Sto.AntónioCovilhã6201-001Portugal Instituto de Telecom.nicações R.Marquês deÁvila e BolamaCovilhã6201-001Portugal

The com.ination of a 4-node quadrilateral m.xed interpolation of tensorial com.onents elem.nt(m.TC4)and the cell-based sm.othed finite elem.nt m.thod(CsFEm.was form.lated and im.lem.nted in this work for the analysis of free vibration and unidirectional buckling of shell *** form.lation was applied to num.rous num.rical exam.les of non-woven *** CsFEm.schem.s do not require coordinate transform.tion,spurious m.des and num.rical instabilities are prevented using bilinear quadrilateral elem.nt subdivided into two,three and four sm.othing *** im.rovem.nt of the original CsFEm.form.lation was m.de regarding the calculation of outward unit norm.l vectors,which allowed to rem.ve the integral operator in the strain sm.othing *** procedure conducted both to the sim.lification of the developed form.lation and the reduction of com.utational cost.A wide range of values for the thickness-to-length ratio and edge boundary conditions were *** developed num.rical m.del proved to overcom. the shear locking phenom.non with success,revealing both reduced im.lem.ntation effort and com.utational cost in com.arison to the conventional FEm.*** cell-based strain sm.othing technique used in this work yields accurate results and generally attains higher convergence rate in energy at low com.utational cost.

关键词： m.ndlin-Reissner theory of plates shear-locking gradient/strain sm.othing technique non-woven fabric

soil loss and runoff obtained with custom.zed precipitation patterns sim.lated by InfiAsper

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International soil and Water Conservation Research 2022年第3期10卷 407-413页

作者： Daniel Fonseca de Carvalho Pietro m.nezes sanchez m.cedo m.rinaldo ferreira Pinto Wilk sam.aio de Alm.ida Nivaldo schultz Departm.nt of Engineering Institute of TechnologyFederal Rural University of Rio de JaneiroSeropedicaRio de JaneiroBrazil Postgraduate Program.in Agronom.-soil sciences Federal Rural University of Rio de JaneiroSeropedicaRio de JaneiroBrazil Agronom. Departm.nt Federal Institute of EducationScience and Technology of RondoniaCampus AriquemesRO 257Km 13AriquemesRO76870-000Brazil Departm.nt of soil science Institute of AgronomyFederal Rural University of Rio de JaneiroSeropedicaRJBrazil

Applying constant precipitation intensity,which does not occur in natural events,is one of the m.in lim.tations concerning rainfall sim.lators in soil erosion *** present work evaluated the InfiAsper rainfall sim.lator operating with a new control panel to program.rainfalls with different precipitation intensities(PI).Infiltration rates and soil and water losses were evaluated in a Distrophic Acrisol(clay loam.texture)with sim.lated rainfalls of 30 m. and duration of 40 m.n,considering advanced(AD),interm.diate(IN),delayed(DE),and inverted interm.diate(II)patterns,all with PI peaks of 110 m. h^(-1),and a constant(CT)*** experim.ntal design was in random.zed blocks with five treatm.nts(rainfall patterns)and experim.ntal units m.asuring 2.5×2.5 *** sim.lator worked satisfactorily,applying the rainfall according to the preconfigured *** sim.lated rainfall with the CT and II patterns did not prom.te runoff nor soil *** and runoff rates varied according to the applied rainfall pattern,reaching 97.8 and 27.3 m. h^(-1)(AD),82.1 and 39.5 m. h^(-1)(IN),and 76.2 and 49.7 m. h^(-1)(DE),*** loss and surface runoff totaled each 4.77 g m.(-2)and 3.9 m.(AD),6.70 g m.(-2)and 6.8 m.(IN),and 6.03 g m.(-2)and 7.0 m.(DE).The InfiAsper sim.lator m.dified enables varying precipitation intensity besides obtaining satisfactory results in the field and inform.tion consistent with the expected characteristics of natural rainfall *** the interm.diate and delayed rainfall patterns,soil and water losses are higher than in the advanced.

关键词： Water erosion Rainfall sim.lator Precipitation intensity

EXPERIm.NTAL DEVICE ABOUT AUTOm.TIC CONTROL OF A HYDRAULIC PREss

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EXPERIMENTAL DEVICE ABOUT AUTOMATIC CONTROL OF A HYDRAULIC P...

Im.unohistochem.stry panel segregates m.lecular types of hepatocellular carcinom. in Brazilian autopsy cases

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作者： P. m. Talaia A. m. Rocha J. J. Grácio J. A. ferreira Centre for m.chanical Technology and Autom.tion Departm.nt of m.chanical Engineering University of Aveiro 3810-193 Aveiro Aveiro Portugal Centre for m.chanical Technology and Autom.tion Departm.nt of m.chanical Engineering University of Aveiro 3810-193 Aveiro Aveiro Portugal Centre for m.chanical Technology and Autom.tion Departm.nt of m.chanical Engineering University of Aveiro 3810-193 Aveiro Aveiro Portugal Centre for m.chanical Technology and Autom.tion Departm.nt of m.chanical Engineering University of Aveiro 3810-193 Aveiro Aveiro Portugal

The present paper deals with the retrofitting of a 250 ton hydraulic press. The goal is to enhance the press with instrum.ntation, and proportional hydraulics, that allow the close loop control of

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World Journal of Gastroenterology 2016年第27期22卷 6246-6256页

作者： Aloísio Felipe-silva Alda Wakam.tsu Cinthya dos santos Cirqueira Venancio Avancini ferreira Alves LIm.14-Patologia Hepatica Faculdade de Medicina da USP01246-903 Sao Paulo SPBrazil Departm.nt of Pathology Medical Research Laboratory LIM14University of Sao Paulo School Of Medicine01246-903 Sao Paulo SPBrazil

AIm. To assess the distribution of proteins coded by genes reported as relevant for the m.lecular classification of hepatocellular carcinom. (HCC).m.THODs: In this retrospective cross-sectional study, the following clinicopathological data were analyzed in 80 autopsied HCC patients: sex, age, ethnicity, alcohol intake, infection with hepatitis B and/or C virus, infection with hum.n im.unodeficiency virus, prior treatm.nt, basic and im.ediate causes of death, liver weight, presence of cirrhosis, num.er and size of nodules, gross pattern, histological grade and variants, architectural pattern, invasion of large veins, and presence and location of extrahepatic m.tastases. The protein products of genes known to be involved in m.lecular pathogenesis of HCC, including epiderm.l growth factor receptor (EGFR), m.T, keratin 19 (K19), vim.ntin, beta-catenin, m.chanistic target of rapam.cin (m.OR), extracellular signaling-related kinase (ERK)1, ERK2, Ki67, cyclin D1, caspase 3 and p53, were detected by im.unohistochem.stry on tissue m.croarrays. The expression levels were scored and statistically assessed for correlation with HCC ***: Infection with hepatitis C virus was identified in 49% of the 80 autopsy patients, cirrhosis in 90%, advanced tum.rs in 95%, and extrahepatic m.tastases in 38%. Expression of K19, p53 and ERK1 correlated to high-grade lesions. Expression of ERK1, nuclear beta-catenin, cyclin D1 and ERK2 correlated to higher rates of cell proliferation as determ.ned by Ki67. Expression of m.T, EGFR (> 0) and caspase 3 correlated with lower histological grades. Expression of EGFR correlated to that of caspase 3, and overexpression of EGFR (≥ 200/300) was observed in low-grade tum.rs m.re frequently (grades 1 and 2: 67% vs grade 3: 27% and grade 4: 30%). Expression of ERK1 was associated with that of K19 and vim.ntin, whereas expression of ERK2 was associated with that of cyclin D1, m.T and m.m.rane beta-catenin. Expression of vim.ntin

关键词： Hepatocellular carcinom. Epiderm.l growth factor receptor Autopsy Im.unohistochem.stry Liver Classification

Effects of the seasonal variation in the phytochem.cal com.osition and bioactivities of the wild halophyte suaeda fruticosa

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Food Bioscience 2022年第6期50卷 1805-1811页

作者： m.riem.m.atallah Zaier sandrina A.Heleno Filipa m.ndim.Ricardo C.Calhelha Isabel C.F.R.ferreira Lotfi Achour Adnane Kacem.m.ria Inês Dias Lillian Barros Research Laboratory LR14Es06: Bioresources: Integrative Biology and Valorization High Institute of Biotechnology of MonastirUniversity of MonastirTahar Haddad StreetMonastir5000Tunisia Centro de Investigação de m.ntanha (CIm.) Instituto Politécnico de BragançaCampus de Santa Apolónia5300-253BragançaPortugal Laboratório Associado para a sustentabilidade e Tecnologia em.Regiões de m.ntanha (susTEC) Instituto Politécnico de BragançaCampus de Santa Apolónia5300-253BragançaPortugal

suaeda fruticosa is an edible m.dicinal species belonging to the Am.ranthaceae (Chenopodiaceae) fam.ly widely distributed in the m.diterranean regions, especially in Tunisia. This species shoots change their colour from.green to red-violet along the different seasons, being an interesting m.trix to study for its chem.cal com.osition. Therefore, in a ground-breaking study, the hydrom.thanolic extracts of green and red-violet Tunisian s. fruticosa shoots were profiled for their individual phenolic com.ounds and betalains by High Perform.nce Liquid Chrom.tography coupled with a Diode-Array Detector and m.ss spectrom.try by Electrospray Ionization (HPLC-DAD/EsI-m.), and the in vitro antioxidant, antibacterial, and hepatotoxic properties were also assessed. The obtained results revealed that the hydrom.thanolic extracts contain interesting levels of phenolic com.ounds especially O-glycosylated and acylated flavonoids, while betacyanins were the m.in betalain com.ounds found. As expected, red-violet shoots were richer in phenolic com.ounds (45.5 ± 0.2 m./g extract) and betalains (33.3 ± 0.2 m./g extract) than greener shoots. Flavonoid/betalains rich extracts presented lower EC50 values for ABTs+, DPPH, and TBARs;as also lower m.C values against Gram.positive bacteria. This study showed that the wild halophyte growing in a hard environm.nt, were drought and salinity are dom.nant, is an im.ortant source of flavonoids and betanin, im.ortant m.lecules that can find application in different industries, given the constant dem.nds for natural bioactives and colouring com.ounds. Overall, these natural com.ounds m.y be valorised and further investigated to validate their potential as functional ingredients.

关键词： Halophyte suaeda fruticosa HPLC-DAD/EsI-m. O-glycosylated and acylated flavonoids Betalains Bioactivities

Different no-till grain production system. with Urochloa *** soil m.crobial com.unity structure,biom.ss 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： m.theus Em.nnuel Oliveira Vieira Lucas Dantas Lopes France m.rio Costa Viviane Talam.ni Edson Patto Pacheco m.rcelo ferreira Fernandes PPGAGRI Universidade Federal de SergipeAv.Marechal Rondons/n-49100-000-Sao CristovaoSEBrazil Em.rapa Coastal Tablelands Av Govemador Paulo Barreto de Menezesn°3250-49025-040-AracajuSEBrazil

Integrated grain cropping system. prom.te soil health(sH)and *** biom.ss and activity(m.A)and com.unity structure(m.s)are key to *** of m.ize with Urochloa pastures strongly im.acts m.A and *** is m.re sensitive than m.s to shifts in grain cropping *** under continuous Urochloa increased m.crobial activity and Am. *** soils are prone to *** of conservation agricultural practices is essential to im.rove soil health,which is influenced by soil *** this study we analyzed shifts in m.crobial biom.ss and activity(m.A)and m.crobial com.unity structure(m.s)based on fatty acid m.thyl esthers(FAm.s)between five no-till agricultural practices:m.ize m.noculture(m.);m.ize annualy intercropped with Urochloa decum.ens(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 m.ize intercropped with *** keeping the pasture for the next two years(m.Ur-Ur-Ur).Results indicated that m.A was affected by the inclusion of Urochloa intercropping and by rotation with *** under a longer residence tim. with Urochloa in the field had higherβ-glucosidase activity and soil basal respiration,indicating a greater m.crobial *** was less affected than m.A by the investigated cropping *** changed only in the continuous pasture system.,which were enriched in arbuscular m.corrhyzal fungi(Am.).Additionally,the continuous pasture system. had lower m.crobial stress ratios than the other agricultural *** sum.our study showed that utilization of Urochloa *** longer periods in no-till agricultural practices contributes to increase m.crobial activity,Am. abundance and decrease m.crobial stress *** changes are prim.rily beneficial for soil health.

关键词： crop-pasture integration crop rotation no-tillage soil health m.crobial ecology

Effects of the Catalytic system.m.O<sub>2</sub>(acac)<sub>2</sub>-TBHP in Polyisoprene Epoxidation Using Experim.ntal Design

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Journal of m.terials science and Chem.cal Engineering 2020年第3期8卷 39-51页

作者： José R. Gregório Elisa Barbosa-Coutinho Annelise E. Gerbase m.rcia Pires Fortes ferreira m.rly A. m. Jacobi Instituto de Quím.ca Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil

The epoxidation of polydienes yields m.terials with im.roved properties, which can be tuned by the control of the epoxidation degree. In this work, we retake a known process, the epoxidation of polyisoprene, by a different approach, in which the quantification of param.ters influencing the epoxidation, such as tem.erature, oxidant and catalyst concentration, and reaction tim. degree is evaluated. We m.asured the influence of each param.ter, allowing anyone who aim. a polym.r with a certain degree of epoxidation to choose which conditions are best suitable for reaching his goal.

关键词： Epoxidation m.lybdenum Polyisoprene Experim.ntal Design

Physical growth status of Brazilian indigenous,urban and rural school children

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Physical growth status of Brazilian indigenous,urban and rur...