检索结果-南通市图书馆

Partitioning between primary and secondary metabolism of carbon allocated to roots in four maize genotypes under water deficit and its effects on productivity

引用

The Crop Journal 2015年第5期3卷 379-386页

作者： Alyne Oliveira Lavinsky Paulo Cesar Magalhaes Roniel Geraldo avila Mariana Melo diniz Thiago Correa de Souza Embrapa Milho e Sorgo Sete LagoasMGCEP:35701-970Brazil Universidade Federal de Lavras LavrasMGCEP 37200-000Brazil Universidade Federal de Sao Joao Del Rey Sete LagoasMGCEP 35701-970Brazil Universidade Federal de Alfenas AlfenasMGCEP 37130-000Brazil

Plants may respond to drought by altering biomass allocation to shoots and roots or by changing the metabolic activities in these organs. To determine how drought changes the partitioning of carbon allocated to growth and secondary metabolism in maize roots and how it affects photosynthesis(A) and productivity in maize, we evaluated leaf gas exchange, yield componentes, root morphology, and primary and secondary metabolites including total soluble sugars(TSS), starch(S), phenolics(PHE), and lignin(LIG). Data were collected from pot-grown plants of four maize genotypes: BRS 1010 and 2B710(sensitive genotypes) and DKB390 and BRS1055(tolerant genotypes) under two soil water tensions: field capacity(FC,-18 kP a) and water deficit(WD,-138 kP a). WD was applied at the pre-flowering stage for 12 days and then the water supply was restored and maintained at optimum levels until the end of the cycle. For genotype BRS 1055 under FC, the greatest A did not result in greater grain biomass(DGB) because the accumulated photoassimilates had already filled the cells, and thus the excessive TSS synthesized in leaves was allocated to roots in large amounts. However, the sharp decrease in A caused by WD imposition in this genotype did not affect the influx pressure of leaf TSS, which was due largely to conversion of primary metabolites to PHE compounds to increase the length of fine roots. In leaves of DKB390 under WD, both S and TSS were reduced, whereas PHE were increased to prevent excessive water loss and xylem cavitation. Under WD, both BRS1010 and2B710 genotypes displayed reduced allocation of biomass to shoots and roots and LIG content in leaves, as well as lower A and DGB values. In BRS1010 this response was coupled to S decrease in leaves and TSS increase in roots, whereas in 2B710 there was a concomitant S increase in roots.

关键词： Starch Sugars Lignin Phenols WinRHIZO

来源：

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

Trauma outcomes in nonfatal road traffic accidents:a Portuguese medico-legal approach

引用

Forensic Sciences Research 2022年第3期7卷 528-539页

作者： Flávia Cunha-diniz Tiago Taveira-Gomes JoséManuel Teixeira Teresa Magalhães CINTESIS—Faculty of Medicine University of PortoPortoPortugal IINFACTS—Institute of Research and Advanced Training in Health Sciences and Technologies Department of SciencesUniversity Institute of Health Sciences(IUCS)CESPUCRLGandraPortugal Fernando Pessoa University PortoPortugal Porto Healthcare Unity—Accidents Fidelidade—Insurance CompanyPortoPortugal

The objective of this study was to compare the outcomes of nonfatal road traffic accidents by the victims’age group and *** used the Portuguese medico-legal rules for personal injury assessment,in the scope of the Civil Law in that country,which includes a three-dimensional *** was a retrospective study including 667 victims of road traffic accidents aged 3–94 years *** final medico-legal reports all used the Portuguese methodology for personal injury *** were analysed by the victims’age group(children,working-age adults,and older people)and *** traffic accidents were generally serious(ISS mean 9.5),with higher severity in children and older *** most frequent body sequelae were musculoskeletal(64.8%),which were associated with functional and situational *** damage resulted in an average length of impairment of daily life of 199.6 days,171.7 days to return to work,and an average degree of quantum doloris(noneconomic damage related to physical and psychological harm)of 3.7/*** average permanent damage was 7.3/100 points for Permanent Functional Deficit,0.43/3 for Permanent Professional Repercussion,2/7 for Permanent Aesthetic Damage,3.9/7 for Permanent Repercussion on Sexual Activity and 3.2/7 for Permanent Repercussion on Sport and Leisure ***,19%of people became permanently dependent(10.6%needed third-party assistance).The medico-legal methodology used,considering victims’real-life situation,allows a comprehensive *** were several significant differences among the three age groups but none between *** differences and the impact of the more severe cases justify further detailed medico-legal studies in these specific situations on children,older people,and severely injured victims.

关键词： Forensic sciences traffic accident trauma injury damage outcome assessment legal medicine

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Domain estimation under informative linkage

引用

Statistical Theory and Related Fields 2019年第2期3卷 90-102页

作者： Ray Chambers Nicola Salvati Enrico Fabrizi Andrea diniz da Silva School of Mathematics and Applied Statistics National Institute for Applied Statistics Research AustraliaUniversity of WollongongWollongongNSW 2522Australia Dipartimento di Economia e Management Universita di PisaPisaItaly Dipartimento di Scienze Economiche e Sociali Universita Cattolica del S.CuoreMilanItaly dInstituto Brasileiro de Geografia e Estatística&Escola Nacional de Ciências Estatísticas–ENCE Rio de JaneiroBrazil

A standard assumption when modelling linked sample data is that the stochastic properties of the linking process and process underpinning the population values of the response variable are independent of one *** is often referred to as non-informative *** what if linkage errors are informative?In this paper,we provide results from two simulation experiments that explore two potential informative linking *** first is where the choice of sample record to link is dependent on the response;and the second is where the probability of correct linkage is dependent on the *** focus on the important and widely applicable problem of estimation of domain means given linked data,and provide empirical evidence that while standard domain estimation methods can be substantially biased in the presence of informative linkage errors,an alternative estimation method,based on a Gaussian approximation to a maximum likelihood estimator that allows for non-informative linkage error,performs well.

关键词： Non-deterministic data linkage exchangeable linkage errors informative sampling auxiliary information domain estimation maximum likelihood

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Application of the Humic Substances and Ammonia in Order to Minimize Losses on Nitrogen Fertilization

引用

Agricultural Sciences 2020年第3期11卷 211-222页

作者： luciana Teresa Dias Cappelini Lia Gracy Rocha diniz Ana Luiza Fornazari Juliana Vieira Alberice Patrícia Fatima Menegoci Eugenio Eny Maria Vieira Universidade de Sã o Paulo Instituto de Química de S&atilde o Carlos (IQSC) S&atilde o Carlos Brasil

Nitrogen (N) is an element absorbed in larger quantities by plants due to the vast number of chemical and biological reactions. Despite the high nutritional need of this element by the plants, it is not a constituent of any terrestrial rock. To avoid high production costs of N, there is an increasing interest in the use of organic fertilizers in Brazil, including the use of humic substances (HS). In this work we evaluated the chelating properties of HS, when used together with a source of N. The nitrogen source used in this experiment was the ammonia. We checked the optimum conditions for interaction between the HS and ammonia such as: the ratio of reaction of each compound;minimum incorporation time between these compounds and the amount of ammonia that can be adsorbed by HS (income). The best ratio of ammonia/HS was 1/50 (v/v). Higher amounts of ammonia added to 50 mL of HS caused a greater loss of N. We also concluded that the application of ammonia/HS in the soil can be made immediately after their mixing, without the need of higher contact time between these substances in order to have the adsorption. No loss of ammonia was detected after 72 hours of its application together with HS. Finally, by using a factorial design, the best working area was found by settling the time of incorporation and volatilization in 24 h, and the volumes of HS and NH3 in 100 and 2 mL, respectively.

关键词： Organic Fertilizer Adsorption Volatilization Experimental Planning

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Assessing the estrogenic potency in a Portuguese wastewater treatment plant using an integrated approach

引用

Journal of Environmental Sciences 2010年第10期22卷 1613-1622页

作者： Mário S.diniz Rita Maurício Mira Petrovic Maria J.López De Alda Leonor Amaral Isabel Peres Damiá Barceló Fernando Santana Universidade Nova de Lisboa Faculdade de Ciencias e TecnologiaREQUIMTEDep.de Quimica Universidade Nova de Lisboa Faculdade de Ciencias e TecnologiaDep.de Ciencias e Engenharia do Ambiente Department of Environmental Chemistry-IIQAB-CSIC c/Jordi Girona

The estrogenic potency of a wastewater treatment plant （WWTP） was evaluated using chemical and biological analyses, which showed that after the station treatment processes some of the selected endocrine disruptor compounds （EDCs） were still present in the treated effluent （e.g., bisphenol A, alkylphenols, estrone）. Thus, the most common endocrine EDCs were identified and quantified and the overall estrogenicity of the treated effluent assessed by integrating the results. Male goldfish （Carassius auratus） were used as biological indicators in a 28-day experiment. Vitellogenin （Vtg）, gonadosomatic and hepatosomatic indices, steroids （17β-estradiol and 11-ketotestosterone） and histopathology were biomarkers used in fish to evaluate WWTP treated effluent estrogenicity, in combination with instrumental analyses. The results showed a significant increase （P 〈 0.01） in plasma and liver Vtg, which were significantly correlated （r = 0.66; P 〈 0.01）. The gonadosmatic index was significantly （P 〈 0.01） reduced in exposed fish. The steroid analyses revealed significant elevations in 17β-estradiol and depressed 11-ketotestosterone concentrations. The histological examinations show changes in exposed fish gonads, such as regressed testes and in some cases （43% to 75%） the development of ovo-testis in fish exposed to 50% and 100% treated effluent.

关键词： Carassius auratus endocrine disruptors vitellogenin steroids intersex

来源：

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

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

引用

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

来源：

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

Leukocyte-technetium-99m uptake in Crohn's disease:Does it show subclinical disease?

引用

World Journal of Gastroenterology 2010年第3期16卷 365-371页

作者： Luciene G Mota Luiz GV Coelho Carlos JR Simal Maria LA Ferrari Clodomiro Toledo Josep Martin-Comin Simone OF diniz Valbert N Cardoso Nuclear Engineering Department Federal University of Minas Gerais Gastro-enterology ALFA Institute Clinical HospitalFederal University of Minas Gerais Nuclear Medicine Felício Rocho HospitalMedicine FacultyFederal University of Minas Gerais Medicine Nuclear Center Bellvitge Hospital Radioisotope Laboratory Pharmacy FacultyFederal University of Minas Gerais

AIM:To evaluate inflammatory activity in patients with Crohn's disease (CD) using technetium-99m-hexamethylpropyleneamine oxime (99mTc-HMPAO) granulocyte ***: Twenty patients (7 male and 13 female) with CD and five healthy volunteers were selected for 99mTc-HMPAO granulocyte scintigraphy. The Crohn's Disease Activity Index (CDAI), blood tests and C-reactive protein (CRP) of each patient were performed 7 d before the scintigraphic images. The leukocytes were labeled according to the International Society of Radiolabeled Blood Elements (ISORBE) consensus protocol and the scintigraphic images, including single photon emission computed tomography, were obtained 30 min and 2 h after injection of the radiolabeled ***:The labeling yield of the leukocytes with the lipophilic complex 99mTc-HMPAO was 55.0%±10%. Six of the 20 patients (30%) presented congruent results for the three parameters investigated (CDAI, Scintigraphic Index and CRP). On the other hand, 14 patients (70%) did not show congruent results. There was no significant correlation between the indices analyzed according to the Spearman test (P>0.05,n=20).CONCLUSION: The results suggest that 99mTc-HMPAO-labeled leukocyte scintigraphy could be important for determining inflammatory activity in CD even in the absence of clinical symptoms.

关键词： Technetium-99m Hexamethylpropyleneamine oxime Leukocytes Inflammatory bowel disease Scintigraphy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Metabolic-associated fatty liver disease is associated with low muscle mass and strength in patients with chronic hepatitis B

引用

World Journal of Hepatology 2022年第8期14卷 1652-1666页

作者： Cecy Maria de Lima Santos Matheus Duarte Brito Pedro Alves Soares Vaz de Castro Thais Pontello de Vries Nataly Lopes Viana Marta Paula Pereira Coelho Olívio Brito Malheiro Tatiana Bering Maria Cristina Gonzalez Rosangela Teixeira Rodrigo Dias Cambraia Gifone Aguiar Rocha luciana diniz Silva Sciences Applied to Adult Health Care Post-Graduate Programme Faculdade de Medicina Universidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Outpatient Clinic of Viral Hepatitis Instituto Alfa de GastroenterologiaFaculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Faculdade de Medicina Universidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Department of Locomotor System Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Department of Food and Nutrition Universidade Federal de Mato GrossoCuiabá78060-900Mato GrossoBrazil Postgraduate Program in Health and Behaviour Catholic University of PelotasPelotas 96015-560Rio Grande do SulBrazil Laboratory of Research in Bacteriology Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Department of Internal Medicine Universidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil

BACKGROUND Although the prognostic relevance of sarcopenia has been increasingly recognised in the context of liver disease,there is a paucity of data evaluating body composition in patients with chronic hepatitis B(CHB).Beyond virus-related factors,nutritional and metabolic aspects can be associated with skeletal muscle abnormalities in these patients and should not be *** To evaluate the association between components of sarcopenia and demographic,clinical,lifestyle,nutritional,and biochemical variables in CHB *** Dual-energy X-ray absorptiometry(DXA)was used to assess muscle mass by quantifying appendicular lean mass(ALM)adjusted for body mass index(ALMBMI).Muscle function was evaluated by hand grip strength(HGS)and the timed up and go ***-associated fatty liver disease(MAFLD)was defined according to the criteria proposed by an international expert panel.A body shape index and the International Physical Activity Questionnaire were used to assess central obesity and physical activity level,*** This cross-sectional study included 105 CHB outpatients followed at the tertiary care ambulatory centre(mean age,48.5±12.0 years;58.1%males;76.2%without cirrhosis;23.8%with compensated cirrhosis).The DXA-derived fat mass percentage was inversely correlated with the ALMBMI(r=-0.87)and HGS(r=-0.63).In the multivariable analysis,MAFLD,sedentarism and central obesity were positively and independently associated with low *** and central obesity were independently associated with low *** MAFLD and central obesity were associated with low muscle mass and strength in patients with chronic hepatitis B,independent of the liver disease stage.

关键词： Chronic hepatitis B Appendicular lean mass Muscle strength Metabolic associated fatty liver disease Central obesity Physical performance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fluid-dynamics evaluation in a conical spouted bed and characterization of foxtail millet seeds

引用

Particuology 2015年第6期13卷 75-81页

作者： Lidiane diniz do.Nascimento Lorena Gomes Corumba Sandra Cristina dos Santos Rocha Osvaldir Pereira Taranto Cristiane Maria Leal Costa Lenio Jose Guerreiro de Faria Federal University of Pard Faculty of Chemical Engineering Laboratory of Drying and Particle Coating Augusto Correa Street w/n 66075-110 BelemPA Brazil University of Campinas School of Chemical Engineering. Albert Einstein Avenue 500 13083-852 Campinas $8o Paulo Brazil

Foxtail millet （Setaria italica） is one of the most valuable species in economic terms in the genus Setaria and plays an important role in human nutrition, animal feed, and agriculture. The present study described chemical, physical, and quality aspects of seeds of foxtail millet. Furthermore, the fluid-dynamic behavior of the seeds was evaluated in a conical spouted bed, which has advantages in terms of promoting the cyclic and regular movement of the seed particles. Dynamic parameters of spouting （minimum spouting veloc- ity, stable and peak pressure drop） were determined and compared with those obtained from empirical correlations available in the literature. The results obtained from physical characterization showed that the seeds can be classified as belonging to Group D of Geldart, having a non-rough surface, mean diameter of 1.75 mm, and sphericity of 0.74. Fluid-dynamics analysis showed that the seeds are suitable for processing in a spouted bed, which is in agreement with the results of particle physical characterization.

关键词： Foxtail millet Parameters of spouting Characterization Conical spouted bed

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Noninvasive diagnosis of periportal fibrosis in schistosomiasis mansoni:A comprehensive review

引用

World Journal of Hepatology 2022年第4期14卷 696-707页

作者： Joelma Carvalho Santos Caroline Louise diniz Pereira Ana Lúcia Coutinho Domingues Edmundo Pessoa Lopes Postgraduate Program in Tropical Medicine Center of Health SciencesUniversidade Federal de PernambucoRecife 50670-901PernambucoBrazil Gastroenterology Division Department of Internal Medicine of Center of Health SciencesHospital das Clínicas-Universidade Federal de PernambucoRecife 50670-901PernambucoBrazil

Schistosomiasis mansoni is a neglected disease and key public health problem,mainly due to its high prevalence,the scarcity of public policies,and the severity of some clinical *** fibrosis(PPF)is the commonest complication of chronic schistosomiasis mansoni and its diagnosis requires different *** though wedge biopsy of the liver is considered the gold standard,it is not justified in non-surgical patients,and percutaneous liver biopsy may be informative but does not have sufficient *** PPF tests mostly include biological(serum biomarkers or combined scores)or physical assessments(imaging assessment of fibrosis pattern or tissue stiffness).Moreover,imaging techniques,such as ultrasound,computed tomography,magnetic resonance imaging,and elastography are applied not only to support the diagnosis of schistosomiasis,but also to assess and detect signs of portal hypertension and organ damage due to chronic schistosomiasis.A combination between a comprehensive history and physical examination with biomarkers for liver fibrosis and imaging methods seems to offer the best approach for evaluating these *** addition,understanding their strengths and limitations will allow a more accurate interpretation in the clinical context and can lead to greater accuracy in estimating the degree of fibrosis in patients with Schistosomiasis mansoni(***)*** review will discuss the different noninvasive methods that are currently available for the evaluation of PPF in *** infection,and their application,advantages,and limitations in clinical practice.

关键词： Schistosoma mansoni Parasitic liver diseases Liver fibrosis Biomarkers Elasticity imaging techniques Ultrasonography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：