检索结果-南通市图书馆

<i>In Vitro</i>Priming of Sugarcane Varieties (RB966928 and RB867515)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2018年第4期9卷 763-774页

作者： Rafaela Pereira Duarte Rodrigo Kelson silva Rezende Fernanda Pinto Maílson Vieira Jesus Izaias rodrigues da silva Junior Ana maria Scoton Faculty of Agrarian Sciences Federal University of Grande Dourados Dourados Brazil

Sugarcane, as a glycophyte, shows sensitivity to saline soils at various stages of its growth. The aim of this study was to evaluate the in vitro priming response in two sugarcane varieties (RB966928 and RB867515). Micropropagated plants, from meristems, received priming treatments by adding the salts (NaCl and KCl) in different concentrations (0.0;12.5;25.0 and 50.0 mM), in the MS medium. Subsequently, the plants were cultivated in rooting medium without addition of salts, acclimatized and submitted to gradient ex vitro saline stress with 20 → 40 and 60 mM, of each salt, for 30 days. The analyzed variables were dry matter of shoot and root, number of tillers and estimation of chlorophyll content. The experiment was carried out in a 2 × 2 × 4 factorial arrangement, in a completely randomized experimental design. Twenty replicates were used throughout the experiment. Data were submitted to analysis of variance and regression and the means were compared by Tukey’s test, at a 5% probability level. The priming treatments presented a significant effect, with triple interaction, in the chlorophyll index. In the treatment with NaCl, the variety RB966928 showed an increase in the chlorophyll index with the increase of treatment levels, up to an optimal limit of 31.47 mM. On the other hand, the variety RB867515 showed decreasing in chlorophyll index. In contrast, in KCl treatment, the variety RB867515 presented the increase at the chlorophyll index with the maximum point of 25 mM. For the variables, shoot dry matter (SDM) and root dry matter (RDM) there was a significant difference (p 0.05 and p 0.01, respectively) only between the varieties. The variety RB966928 presented higher SDM and RDM in relation to the variety RB867515. Studies are recommended with increasing the duration of the priming treatments and more detailed study of the culture throughout its productive cycle.

关键词： Salinity Stress Micropropagation Saccharum officinarum L.

ZnO/CeO_(2)/carbon xerogel composites with direct Z-scheme heterojunctions:Enhancing photocatalytic remediation of 4-chlorophenol under visible light

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第2期42卷 314-322,I0003页

作者： Nicolas Perciani de Moraes Maite Birkett de Campos Sanmartin Robson da silva Rocha Abner de Siervo Marcos Roberto de Vasconcelos Lanza D.Amaranatha Reddy Lianqing Yu Liana Alvares rodrigues Escola de Engenharia de Lorena-EEL/USP Estrada Municipal do Campinho S/NCEP 12602-810LorenaSao PauloBrazil Institute of Physics"Gleb Wataghin" Applied Physics DepartmentState University of Campinas13083-859CampinasSPBrazi Instituto de Quimica de Sao Carlos Universidade de Sao PauloAv.Trab.Sao Carlense400-Parque Arnold SchimidtSao CarlosSP13566-590Spain Department of Sciences Indian Institute of Information Technology Design and ManufacturingKurnoolAndhra Pradesh518007India School of Materials Science and Engineering China University of PetroleumQingdao266580China

This paper aims to create visible light driven ternary photocatalysts using zinc oxide(ZnO),cerium(IV)oxide(CeO_(2)),and carbon xerogel(CX) as constituent *** use of CeO_(2) is based on the creation of direct-Z-scheme heterojunctions with the ZnO and the consequent diminishing of charge recombination,whereas the carbon xerogel inclusion is predicted to minimize bandgap energy,decrease electro n-hole reco mbination,and boost specific surface *** re,the choice of the black-wattle tannin as a carbonaceous precursor was targeted at the development of an environmentally friendly and affordable *** existence of the hexagonal phase of zinc oxide and cubic structure of the cerium(IV) oxide in the ternary material was confirmed by X-ray diffractometry and X-ray photoelectron spectroscopy,with the latter also suggesting chemical bonding between the ZnO and the CX due to the creation of zinc oxycarbide *** inclusion of the carbon xerogel provokes a significant modification in the morphology of the ternary material,resulting in an increased surface area and smaller particle *** CX/ZnO-CeO_(2) ternary composite obtains the highest photocatalytic efficiency among all the materials studied,degrading 100% of 4-chlorophenol under simulated sunlight and 68% under visible radiation,after 5 *** increased photocatalytic activity can be attributed to the formation of direct Z-scheme heterojunctions between the semiconductors,higher visible light response,and higher specific surface area,as evidenced by the results obtained by active radical scavenging,chronoamperometry,diffuse reflectance spectroscopy,and N_(2) adsorption-desorption isotherms.

关键词： Zinc oxide Cerium(Ⅳ)oxide Carbon xerogel Photocatalysis Direct Z-scheme heterojunction 4-Chlorophenol Rare earths

Effect of Kinesio Taping on Hand Function in Hemiparetic Patients

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Neuroscience 2018年第2期8卷 293-302页

作者： Jonathan Galvao Tenorio Cavalcante maria do Desterro Costae silva Jessiane Tenorio da Fonseca silva Clarissa Cotrim dos Anjos Renata Sampaio rodrigues Soutinho School of Physical Therapy Alagoas State University of Health Sciences(UNCISAL)MaceioBrazil Alagoas State University of Health Sciences(UNCISAL) MaceioBrazil CESMAC University MaceioBrazil

Introduction: Cerebrovascular accident (CVA) is the second most frequent cause of death in the world. Nevertheless, most victims do survive and need treatment, and hand function is one that has to be dealt with in the rehabilitation process. Kinesio®?Taping (KT) is a bandaging method that can be applied along the muscle fibers to provide stimulation. Studies have shown its efficacy in providing afferent stimuli to weakened muscles, thus eliciting contraction with greater recruiting of motor units and inducing neuroplasticity. Benefits to the paresthesia hand have not been reported. Objective: Investigate the effects of KT on hand function in hemiparetic patients. Material and Methods: An evaluator-blinded, randomized clinical trial involving stroke victims was carried out in a physical therapy outpatient clinic. One group underwent KT intervention and the other was a control group. The Modified Ashworth Scale (MAS) and the Box and Block Test (BBT) were used as assessment tools. A data entry form was used in the Epi-info 7 software and descriptive statistics was thus calculated. The software BioStat 5.0 was employed when doing statistical tests. Associations were regarded as statistically significant when p 0.05. Results: Eight individuals were randomly assigned to two groups. All those who had received treatment with KT had spasticity improved by one point, but there was no significant improvement in BBT. Conclusion: KT was effective when it came to improving spasticity and it may be an option in rehab, but it had no effect on gross manual dexterity. Nevertheless, it can be of help as part of a functional training program.

关键词： Stroke Rehabilitation Physical Therapy Kinesio^(█) Taping Hands

Hepatocellular carcinoma staging systems: Hong Kong liver cancer vs Barcelona clinic liver cancer in a Western population

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2019年第9期11卷 678-688页

作者： Laura Bainy rodrigues de Freitas Larisse Longo Deivid Santos Ivana Grivicich Mário Reis Alvares-da-silva Graduate Program in Gastroenterology and Hepatology Universidade Federal do Rio Grande do SulPorto AlegreRS 90035-003Brazil Experimental Hepatology and Gastroenterology Laboratory Center for Experimental ResearchHospital de Clínicas de Porto AlegrePorto AlegreRS 90035-003Brazil School of Medicine Universidade Federal do Rio Grande do SulPorto AlegreRS 90035-003Brazil Graduate Program in Health-Applied Cellular and Molecular Biology ULBRA.CanoasRS 92425-900Brazil Department of Gastroenterology Hospital de Clínicas de Porto AlegrePorto AlegreRS 90035-003Brazil

BACKGROUND Despite being the world’s most widely used system for staging and therapeutic guidance in hepatocellular carcinoma(HCC)treatment,the Barcelona clinic liver cancer(BCLC)system has limitations,especially regarding intermediate-grade(BCLC-B)*** recently proposed Hong Kong liver cancer(HKLC)staging system appears useful but requires validation in Western *** To evaluate the agreement between BCLC and HKLC staging on the management of HCC in a Western population,estimating the overall patient *** This was a retrospective study of HCC patients treated at a university hospital in southern Brazil between 2011 and ***,clinical,and laboratory data were *** staging was carried out according to the HKLC and BCLC systems to assess treatment *** survival was estimated based on the treatment proposed in each *** A total of 519 HCC patients were *** these,178(34.3%)were HKLC-I;95(18.3%)HKLC-IIA;47(9.1%)HKLC-IIB;29(5.6%)HKLC-IIIA;30(5.8%)HKLCIIIB;75(14.4%)HKLC-IV;and 65(12.5%)*** to the BCLC,25(4.9%)were BCLC-0;246(47.4%)BCLC-A;107(20.6%)BCLC-B;76(14.6%)BCLCC;and 65(12.5%)*** general agreement between the two systems was 80.0%-BCLC-0 and HKLC-I(100%);BCLC-A and HKLC-I/HKLC-II(96.7%);BCLC-B and HKLC-III(46.7%);BCLC-C and HKLC-IV(98.7%);BCLC-D and HKLC-V(41.5%).When sub-classifying BCLC-A,HKLC-IIB,HKLC-IIIA and HKLC-IIIB stages according to the up-to-7 in/out criterion,13.4,66.0,100 and 36.7%,respectively,of the cases were classified as up-to-7 *** In a Western population,the general agreement between the two systems was 80.0%,although in BCLC-B cases the agreement was low,suggesting that some individuals could be candidates for the curative treatment recommended by the *** authors suggest that the BCLC system should be routinely employed,although for BCLC-B cases it should be associated with the HKLC system.

关键词： Barcelona clinic liver cancer staging system Hepatocellular carcinoma Hong Kong liver cancer staging system

Forecasting the New Trends about the Consumer Behavior in the Cruise Industry Post COVID-19

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Data Analysis and Information Processing 2022年第1期10卷 58-77页

作者： Ana Lucia rodrigues da silva Reinaldo Castro Souza The Research Group on Maritime and River Cruises Pontifical Catholic University of Rio de Janeiro PUC Rio Metrology and Industrial Quality (Pos MQI) Rio de Janeiro Brazil

This paper presented the new sanitary and health protocols implemented by cruise companies in order to internationally resuming the industry. The perception of Brazilians regarding these new protocols was identified through a quantitative survey with a sample of 412 Brazilian respondents, carried out between May and June 2021. As main results, sanitary and health protocols that do not affect their experiences on board were identified, as well as those protocols that compromised the experience perceived by the future traveler. The respondents’ propensity to travel on cruise ships and their perceptions about the influence of the ship size, the number of ports of call, nationalities on board, the number of guests, among other aspects, were also analyzed. Finally, in the final section of this paper, we presented an estimation of the expected number of cruisers for the 21/22 cruising season in Brazil, based on a kind Bayesian argument, considering different scenarios for the forthcoming season.

关键词： Cruise Industry COVID-19 Sanitary and Health Protocols Quantitative Sur-vey Forecasting Brazilian’s Cruisers

Influence of the rainfall in the content of nutrients in litter in agroforestry systems managed with burning and without burning in Amazon

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Sciences 2013年第11期4卷 26-36页

作者： Rosecélia Moreira Da silva Castro maria De Lourdes Pinheiro Ruivo Jorge Luiz Piccinin Eraldo Ferreira rodrigues Brazilian Company of Agricultural Research Statistical Department Belém Brasil Emilio Goeldi Pará Museum Coordination of Earth Sciences and Ecology Belém Brasil Federal University of Rural Amazonia Institute Sciences Agricultural Belém Brasil

This study evaluated the nutrient content of the litter, testing different treatments with burning and no burning, of the vegetation, to identify which one provides better efficiency in operation and production of nutrients in different seasonal conditions. The study area is located on the property of the family farmer, initially selected by a diagnosis socioeconomic, community Benjamin Constant, in northeastern Para. Litter was collected during two periods: dry season (November) and rainy (March) in 2009. For the collection of litter samples, we used collectors measuring (0.25 × 0.25 m2), which were placed directly on the soil surface. The collected material was stored in paper bags and taken to the laboratory for Chemical Analysis of the Brazilian Agricultural Research Corporation (EMBRAPA), which was determined by analyses of macronutrients (N, P, K, Ca, Mg, Na) and micronutrients (Fe, Cu, Mn, Zn). The highest concentrations of macronutrients were found in N for agroforestry systems with and without burning in two seasons (wet and dry). All macronutrients showed influence of seasonality, which was verified by the wide variation in nutritional behavior. The decreasing concentration of nutrients was presented N > Ca > Mg > Na > K > P in agroforestry system with burning, with maximum values of all nutrients in the rainy season, and N, P, K, Ca, Na in higher concentrations in agroforestry system without burning, and showed only the Mg peak in agroforestry system with burning. The behavior of the concentration of nutrients was opposite to that observed one, for all elements analyzed showed a reduction in the concentrations of nutrients in the dry season. The decreasing concentration of nutrients was presented Fe > Mn > Zn > Cu.

关键词： Forest Management Ecosystem Seasonality Litterfall

Phytochemical bioprospecting, antioxidant, antimicrobial and cytotoxicity activities of saline extract from Tithonia diversifolia(Hemsl) *** leaves

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2018年第5期8卷 245-253页

作者： Bruno Rafael Barboza Bárbara Rafaela da silva Barros Bárbara de Azevedo Ramos Maiara Celine de Moura Thiago Henrique Napoleao maria Tereza dos Santos Correia Luana Cassandra Breitenbach Barroso Coelho Iranildo José da Cruz Filho Ana maria Souto Maior Túlio Diego da silva Leylianne de Cássia rodrigues Nerys Edson Renan Barros de Santana Cláudia Sampaio de Andrade Lima Virgínia maria Barros de Lorena Cristiane Moutinho Lagos de Melo Department of Antibiotics Biosciences Centre Federal University of Pernambuco Department of Biochemistry Biosciences Centre Federal University of Pernambuco Center for Strategic Techmologies of the Northeast Department of Biophysics Biosciences Centre Federal University of Pernambuco Aggeu Magalhaes Institute IAM/FIOCRUZ

Objective:To evaluate antimicrobial and antioxidant properties of saline extract from Tithonia diversifolia leaves by phytochemical bioprospecting,and investigate its safety against animal ***:The saline extract was prepared,with NaCl(0.15 M),by constant stirring of the dried and pulverized leaves,followed by volume reduction by *** extract was phytochemical characterized using ultra-performance liquid chromatography,and total phenol and flavonoid analysis also was *** antioxidant capacity was determined through DPPH*radical,the antimicrobial property was evaluated against standard bacteria and fungi,and the viability assays were performed against mice ***:Fifteen compounds were identified belonging to two main classes terpenoids and *** extract showed 22.185 mg GAE/g of total phenolic compounds and 3.220 mg QE/g of ***,extract showed higher antioxidant ability similar to butylated hydroxytoluene a standard molecule[(3.042±0.019)mg AAE/g and(4.12±0.10)mg AAE/g to saline extract and butylated hydroxytoluene,respectively].The antimicrobial assays demonstrated that the extract had a significant antifungal potential against Candida species and could be used with safety against mice splenocytes,in concentrations lower than 50μg/mL,promoting higher proliferation in these ***:Saline extract from Tithonia diversifolia leaves presents potential antioxidant,antifungal properties and induces immunostimulation in mice splenocytes.

关键词： Tithonia diversifolia Extract Antioxidant Antifungal properties Immunostimulation

Application of Finite Elements Method for Structural Analysis in a Coffee Harvester

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Engineering（科研） 2014年第3期6卷 138-147页

作者： Evandro Pereira da silva Fabio Moreira da silva Ricardo rodrigues Magalhaes Department of Engineering University of LavrasLavrasBrazil

Stress concentration and large displacements are usual problems in the components of the structure of agricultural machinery such harvesters coffee, and that finite element method (FEM) can be a tool to minimize its effects. The goal of this paper is to get results of stresses and displacements of a coffee harvester structure by using FEM for static simulation. The main parts of the coffee harvester analyzed were: engine frame, body right and left sides, front and rear end, main beam, coffee reservoir, wheels and fuel tank. Two different design concepts of a coffee harvester machine were analyzed (structure with rear wheels aligned and misaligned) and the results were compared. It was observed that the model with rear wheels misaligned showed maximum displacement lower than the model with rear wheels aligned. Although higher stress was found in the rear wheels misaligned, it was observed that average stresses for the misaligned wheels design were lower in most structural components analyzed. Based on FEM results, the coffee harvester machine with misaligned rear wheels was built and subjected to operational tests without showing any structural failure.

关键词： Finite Elements Method Stress Concentration Static Simulation Coffee Harvester

Comparison of morphological and functional outcomes of mouse sciatic nerve repair with three biodegradable polymer conduits containing poly (lactic acid)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2018年第10期13卷 1811-1819页

作者： Fernanda Marques Pestana Rui C.C.Domingues Júlia Teixeira Oliveira Daniela F.P.A.Durco Camila Oliveira Goulart Henrique Rocha Mendonca Anne Caroline rodrigues dos Santos Natália Tavares de Campos Beatriz Theodoro da silva Cristina Cardoso Pereira Cristiano Piacsek Borges Ana maria Blanco Martinez Pós Graduacao em Ciências Morfológicas Instituto de Ciências Biomédicas-UFRJRio de Janeiro RJ Brazil Anatomia Patológica-Faculdade de Medicina-HUCFF-UFRJ Rio de Janeiro RJ Brazil Laboratório de Neurodegeneracao e Reparo-Faculdade de Medicina-HUCFF-UFRJ Rio de Janeiro RJ Brazil Programa de Eng. Química COPPE-UFRJRio de Janeiro Brazil Polo Universitário de Macaé Laboratório Integrado de Produtos Bioativos e BiociênciasMacaê UFRJ Brazil

Poly（lactic acid）（PLA）-containing nerve guidance conduits（NGCs） are currently being investigated for nerve repair as an alternative to autograft, which leads to permanent functional impairment in the territory innervated by the removed nerve. Combination of polymers modifies the physical properties of the conduits, altering their nerve-guidance properties. Conduits made from PLA-only or combined with other polymers have been used successfully for nerve repair, but their efficiency has not been compared. We compared the morphological and functional outcomes of peripheral nerve repair by using NGCs made of poly（lactic acid） and combined or not with polycaprolactone（PLA/PCL） or polyvinylpyrrolidone（PLA/PVP）. To assess the functional recovery, we employed a mechanical hyperalgesia analysis, sciatic functional index（SFI）, and electroneuromyography. The mechanical hyperalgesia analysis showed that the PLA group improved more rapidly than the PLA/PVP and PLA/PCL groups; similarly, in the electroneuromyography assay, the PLA group exhibited higher amplitude than the PLA/PCL and PLA/PVP groups. However, the SFI improvement rates did not differ among the groups. Morphologically, the PLA group showed more vascularization, while the nerve fiber regeneration did not differ among the groups. In conclusion, the PLA-only conduits were superior to the other NGCs tested for nerve repair.

关键词： sciatic nerve tubulization biodegradable conduit poly(lactic acid) regeneration