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NASS Journal of Agricultural Sciences 2022年第2期4卷 27-35页

作者： Rubabura,K.JA. Ndatabaye,L.F. Lina,A.A. muhigwa,b.jb. Agricultural Entomology laboratory Entomology SectionResearch Centre in Natural Sciences(CRSN-Lwiro)Democratic Republic of Congo Department of biology State University of BukavuDemocratic Republic of Congo

Ninety-six farmers interviewed in Kabare,east of the DR Congo during *** majority were males(79.17%),ranging 30 to 60 years,used different pesticides in vegetable farms and the main solanaceous crops cultivated is *** use of insecticide and fungicide were high,with many different formulations of the different class types recorded in use,(20%)endocrine disruptors,(40%)cholinesterase inhibitors,(35%)carcinogen and potential carcinogens suspected to be.A lot of out of those pesticides are unregistered for general *** applied pesticide once a week and they didn’t have specific *** skin effects,headaches and dizziness are *** do not have a good system of pesticide packaging *** reducing pesticide application,we propose options of agro *** suggest that the Congolese government must create a quarantine,control and surveillance service for phytosanitary products,fruits and vegetables within the DRC country and at these ***,it needs urgent action from the federal and regional governments to formulate policy,design legislation,and enforcing for its implementation concerning the supply,transportation,storage,appropriateness,and application of harmful pesticides.

关键词： Pesticide Market gardeners’crops Farmer’s small holders Endocrine disruptors Cholinesterase inhibitors

抗阻训练通过激活雄性和雌性小鼠的雄激素受体抑制肌肉疼痛

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中国疼痛医学杂志 2024年第7期30卷 481-484页

作者：刘婧媛(译) 郑拥军(校) 复旦大学附属华东医院

基于抗阻训练的运动通常用于治疗慢性疼痛。有氧运动的镇痛机制经常被报道,而关于抗阻训练机制知之甚少。该研究开发了一种小鼠抗阻训练模型,并假设抗阻训练可以通过激活雄激素受体来防止肌肉疼痛的发展。活动诱导的肌肉痛觉过敏通过2... 详细信息

基于抗阻训练的运动通常用于治疗慢性疼痛。有氧运动的镇痛机制经常被报道,而关于抗阻训练机制知之甚少。该研究开发了一种小鼠抗阻训练模型,并假设抗阻训练可以通过激活雄激素受体来防止肌肉疼痛的发展。活动诱导的肌肉痛觉过敏通过2次注射pH 5.0的刺激物引起肌肉收缩疲劳产生。通过让小鼠负重爬梯,每周3次,来进行抗阻训练。在诱导疼痛模型之前进行8周的抗阻训练,阻止两性小鼠肌肉痛觉过敏的进展。在诱导疼痛模型后开始的抗阻训练仅逆转了雄性小鼠的肌肉痛觉过敏,一次抗阻训练会急剧增加雄性小鼠的睾酮。在为期8周的训练计划中,雄激素受体拮抗剂氟他胺(200 mg)的给药阻断了在两性小鼠中运动对肌肉疼痛的保护作用。然而,对抗阻训练的小鼠单次给予氟他胺(1、3、10 mg/kg)对已有的运动诱导的肌肉疼痛保护没有影响。因此,抗阻训练会随着时间的推移迅速增加乳酸和睾酮以及力量。8周的抗阻训练通过激活肌肉疼痛动物模型中的雄激素受体来防止痛觉过敏的发展。

关键词：抗阻训练肌肉疼痛镇痛机制运动诱导雄激素受体刺激物痛觉过敏氟他胺

A novel solid state Michael addition reaction of N-heterocyclic compounds containing active C-H bond

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Chinese Journal of Chemistry 1996年第5期14卷 421-427页

作者： Li, XL Wang, YM Tian, b Meng, jb NANKAI UNIV DEPT CHEMTIANJIN 300071PEOPLES R CHINA

In this paper, a novel solid state Michael-type addition reaction of N-heterocyclic compounds containing the active-CH group was investigated. 3-Methyl-1-phenyl-5-pyrazolone (MPP) and indole (In) reacted with 4-arylmethylene-3-methyl-1-phenyl-5-pyrazolone (1) in the solid state at room temperature to give the corresponding adducts, aryl-4,4'-bis(5-hydroxy-3-methyl-1-phenyl-pyrazolyl) methane (2a-n) and 1-aryl-1-(5'-hydroxy-3'-methyl-1'-phenyl-4'-pyrazolyl)-1-(3 ''-indolyl) methane (3a-n), respectively. This is a feasible method for preparing the compound which contains two heterocyclic groups on the same carbon.

关键词： indole pyrazolone Michael addition solid state reaction

Synthesis of new heterocycles 1,3,2,6-dioxaphosphaselenacyclooctanes

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Chinese Journal of Chemistry 1997年第5期15卷 450-458页

作者： Li, JL Tian, b Zhao, CQ Wang, YM Meng, jb Wang, HG Nankai Univ Dept Chem Tianjin 300071 Peoples R China Nankai Univ Cent Lab Tianjin 300071 Peoples R China

New phosphorus-and selenium containing heterocyclyes, 1,3,2,6-dioxaphosphaselena-cyclooctanes (1a-1h), were synthesized by the reaction of bis(2-hydroxyethyl)selenide with RP(X)Cl-2 where R=alkoxyl, aroxyl, aryl. and X=O or lone pair. Their structures were determined by spectroscopies and elemental analyses and finally confirmed by the X-ray crystallographic analysis of 1c. The molecular structures of the heterocycles were discussed in term of conformational analysis.

关键词： heterocycles synthesis structure

THE DEFECT ITERATION OF THE FINITE ELEMENT FOR ELLIPTIC bOUNDARY VALUE PRObLEMS AND PETROV-GALERKIN APPROXIMATION

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Journal of Computational Mathematics 1998年第2期16卷 152-164页

作者： Gao, jb Yang, YD Shih, TM Huazhong Univ Sci & Technol Dept Math Wuhan 430074 Peoples R China Guizhou Normal Univ Dept Math Guiyang 550001 Peoples R China Hong Kong Polytech Univ Dept Math Appl Hong Kong Peoples R China

In this paper we introduce a Petrov-Galerkin approximation model to the solution of linear and semi-linear elliptic boundary value problems in which piecewise quadratic polynomial space and piecewise linear polynomial space are used as the shape function space and the test function space, respectively. We prove that the approximation order of the standard quadratic finite element can be attained in this Petrov-Galerkin model. based on the so-called 'contractivity' of the interpolation operator, we further prove that the defect iterative sequence of the linear finite element solution converge to the proposed Petrov-Galerkin approximate solution.

关键词： Petrov-Galerkin approximation defect iteration correction interpolation operator

Indium Composition Dependence of the Size Uniformity of InGaAs Quantum Dots on (311)b GaAs Grown by Molecular beam Epitaxy

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Journal of Materials Science & Technology 1999年第6期15卷 523-526页

作者： Jiang, WH Xu, HZ Xu, b Zhou, W Gong, Q Ding, D Liang, jb Wang, ZG Chinese Acad Sci Inst Semicond Lab Semicond Mat Sci Beijing 100083 Peoples R China

The deposition of InxGa1-xAs (0.2 less than or equal to x less than or equal to 0.5) on (311)b GaAs surfaces using solid source molecular beam epitaxy (MbE) has been studied. both AFM and photoluminescence emission showed that homogeneous quantum dots could be formed on (311)b GaAs surface when indium composition was around 0.4. Indium composition had a strong influence on the size uniformity and the lateral alignment of quantum dots. Compared with other surface orientation, (100) and (n11) A/b (n=1,2,3), photoluminescence measurement confirmed that (311)b surface is the most advantageous in fabricating uniform and dense quantum dots.

关键词： Semiconducting gallium arsenide

Kinetic Study on Horseradish Peroxidase Interacting with Cyclodextrin

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Chinese Chemical Letters 2000年第8期11卷 721-724页

作者： Chen, jb Xia, CG ben Li, S Chinese Acad Sci Lanzhou Inst Chem Phys State Key Lab Oxo Synth & Select Oxidat Lanzhou 730000 Peoples R China

The catalyst reactivity of Horseradish peroxidase was enhanced in the presence of beta-cyclodextrin. During this course, beta- cyclodextrin played a role of stabilizing the intermediates of HRP. The results have been ... 详细信息

关键词： horseradish peroxidase beta- cyclodextrin compound kinetics

Notes on the genus Entoloma *** the Northwest of the Iberian Peninsula(Ⅺ):a new species in subgenus Entoloma

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Studies in Fungi 2021年第1期6卷 64-70页

作者： blanco-Dios jb Centro de Formación e Experimentación Agroforestal de Lourizán.Consellería do Medio Rural.Xunta de Galicia.P.O.box 127.36003 Pontevedra Spain

Entoloma cedeirense,a new species in subgenus Entoloma,is described from in Galicia(NW of Spain).A detailed macro and micromorphological descriptions,drawings and a discussion with closely related taxa of subgenus Ent... 详细信息

关键词： Agaricales basidiomycota Entolomataceae Spain Taxonomy

Notes on the genus Arrhenia(I):Arrhenia pontevedrana,*** ***(Agaricales,basidiomycota),from the northwest of the Iberian Peninsula

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Studies in Fungi 2019年第1期4卷 185-191页

作者： blanco-Dios jb Centro de Formación e Experimentación Agroforestal de Lourizán.Consellería do Medio Rural.Xunta de Galicia.P.O.box 127.36003 Pontevedra Spain

Arrhenia pontevedrana is described as a new species to science from Galicia(NW of Iberian Peninsula)based on morphological characteristics.A detailed description of basidiomata and microstructures of this species and a comparison with its morphologically closely related taxa are *** subglobisemen is recorded for the first time from the Iberian *** new combination Arrhenia kuhnerii is also proposed.

关键词： biodiversity Spain Taxonomy Tricholomataceae

Spatial distribution of copper content in sediments of the Yangtze River system

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Chinese Science bulletin 1997年第15期42卷 1294-1297页

作者： Zhang, CS Zhang, S He, jb State Key Laboratory of Resources and Environment Information System China Department of Chemical Geography Institute of Geography Chinese Academy of Sciences Beijing China

THE spatial distribution pattern of an element content is controlled by various geochemical pro-cesses. Studies on the spatial pattern are beneficial to further analysis on the factors. As a re-sult, our knowledge about the geochemical processes is enriched. At the same time, describingthe spatial patterns quantitatively with some indices is one way from qualitative to quantitativeanalysis.

关键词： geostatistics variogram Kriging copper.