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Contribution of leaf growth on the disappearance of fungicides used on tea under south Indian agroclimatic conditions

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第6期10卷 422-426页

作者： Chinnachamy KARTHIKA narayanan nair muraleedharan United Planter's Association of South India (UPASI) Tea Research Institute Tea Research Foundation Nirar Dam B.P.O United Planter's Association of South India (UPASI) Tea Research Institute Tea Research FoundationNirar Dam B.P.O

The sprayed chemicals on tea leaves disappear over a period of time by the influence of rainfall elution, evaporation, growth dilution, and photodegradation. Influence of plant growth on the four fungicides (hexaconazole, propiconazole, tridemorph, and c) was studied to know the constructive loss of fungicides. The study shows that residues of fungicides sprayed on tea shoots got diluted by the growing process. The expansion of a leaf took 8 to 11 d and more than 50% of the fungicide residues were cleaned out during this leaf expansion period. Under south Indian agroclimatic condition, the fungicides are sprayed at an interval of 10 d, so it is safe that the tea is harvested on the 10th day of the application of fungicides.

关键词： Tea shoots Growth Dilution Fungicides Residue loss

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Enhancing the Surface Properties of a Bioengineered Anterior Cruciate Ligament Matrix for Use with Point-of-Care Stem Cell Therapy

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Engineering 2021年第2期7卷 153-161页

作者： Xiaohua Yu Paulos Y.Mengsteab Ganesh narayanan Lakshmi S.nair Cato T.Laurencin Connecticut Convergence Institute for Translation in Regenerative Engineering University of Connecticut HealthFarmingtonCT 06030USA Raymond and Beverly Sackler Center for Biological Physical and Engineering SciencesUniversity of Connecticut HealthFarmingtonCT 06030USA Department of Orthopedic Surgery University of Connecticut HealthFarmingtonCT 06030USA Department of Biomedical Engineering University of ConnecticutStorrsCT 06269USA Department of Materials Science and Engineering University of ConnecticutStorrsCT 06269USA Department of Chemical and Biomolecular Engineering University of ConnecticutStorrsCT 06269USA Department of Reconstructive Sciences University of Connecticut HealthFarmingtonCT 06030USA

We have previously developed a poly(L-lactic)acid(PLLA)bioengineered anterior cruciate ligament(ACL)matrix that has demonstrated enhanced healing when seeded with primary ACL cells prior to implantation in a rabbit model,as compared with the matrix *** suggests that improving cell adhesion on the matrix may beneficially affect the healing response and long-term performance of the bioengineered ACL *** regenerative engineering approach involves enhancing the surface properties of the matrix to support cell adhesion and growth in combination with point-of-care stem cell ***,we studied the cell adhesion properties of PLLA braided microfiber matrices enhanced through the physical adsorption of fibronectin and air plasma *** evaluated the kinetics and binding efficiency of fibronectin onto matrices at three time points and three fibronectin *** the matrix for 120 min in a solution of 25 lgmL1 fibronectin achieved the greatest binding efficiency to the matrix and cellular *** the matrices to air plasma treatment for 5 min before fibronectin adsorption significantly enhanced the cell adhesion of rabbit bone marrow-derived mesenchymal stem cells(R-BMMSCs)24 h post cell ***,cellular proliferation was monitored for up to 21 d,the matrices were exposed to air plasma treatment,and fibronectin adsorption was found to result in enhanced cell *** findings suggest that exposure to air plasma treatment and fibronectin adsorption enhances the cellular adhesion of PLLA braided microfiber matrices and may improve the clinical efficacy of the matrix in combination with point-of-care stem cell therapies.

关键词： Anterior cruciate ligament Ligament Poly(L-lactic)acid plasma treatment Fibronectin Stem cells Adhesion

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年轻女性晕厥一例

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英国医学杂志中文版 2021年第5期24卷 299-300页

作者： Krishna Kumar Mohanan nair narayanan Namboodiri Ajitkumar Valaparambil 曲云鹏(译) 吴瑛(审校) Department of Cardiology Sree Chitra Tirunal Institute for Medical Sciences and TechnologyThiruvananthapuramKeralaIndia 中国医学科学院阜外医院

患者女,25岁,近6小时反复晕厥发作。血压80/60 mmHg(1 mmHg=0.133 kPa),脉率230次/min,律不齐。患者入院12导联体表心电图如图1,经150 J电复律转复为窦性心律。既往体健,无已知器质性心脏病病史,否认吸毒史及心源性猝死家族史。问题1.患... 详细信息

患者女,25岁,近6小时反复晕厥发作。血压80/60 mmHg(1 mmHg=0.133 kPa),脉率230次/min,律不齐。患者入院12导联体表心电图如图1,经150 J电复律转复为窦性心律。既往体健,无已知器质性心脏病病史,否认吸毒史及心源性猝死家族史。问题1.患者ECG具备哪些特点?

关键词：心源性猝死窦性心律吸毒史电复律脉率器质性心脏病 12导联体表心电图

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