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| 1 | Antibacterial activity of leaves and inter-nodal callus extracts of Mentha arvensis L显示文摘Objective:To determine the anti-bacterial efficacy of chloroform,ethanol,ethyl acetate and water extracts of inter-nodal and leaves derived calli extracts from Mentha arvensis(M.arvensis) against Salmonella typhi(S.typhi),Streptococcus pyogenes(S.pyogenes),Proteus vulgaris(P. vulgaris) and Bacillus subtilis(B.subtilis).Methods:The inter-nodal and leaves segments of M.arvensis were cut into 0.5-0.7 cm in length and cultured on Murashige and Skoog solid medium supplemented with 3%sucrose,gelled with 0.7%agar and different concentration of 2,4-Dichlorophenoxyacetie acid(2,4-D) either alone or in combinations.The preliminary phytochemical screening was performed by Brindha et al method.Antibacterial efficacy was performed by disc diffusion method and incubated for 24 h at 37℃.Results:Maximum percentage of callus formation(inter-nodal segments 84.3±0.78;leaves segments 93.8±1.27) was obtained on Murashige and Skoog’s basal medium supplemented with 3%sucrose and 1.5 mg/L of 2,4-D.The ethanol extracts of leaves derived calli showed the maximum bio-efficacy than other solvents.The leaves and stem derived calli extracts on Proteus sp.showed that the plants can be used in the treatment of urinary tract infection associated with Proteus sp.Through the bacterial efficacy studies,it is confirmed that the in vitro raised calli tissue was more effective compared to in vivo tissue.Conclusions:The bio-efficacy study confirmed that the calli mediated tissues showed the maximum zone of inhibition.The present study paved a protocol to establish high potential cell lines by in vitro culture. | Johnson M Wesely EG Kavitha MS Uma V | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，3： | 9 |
| 2 | 全球数字平台劳动者就业研究显示文摘国际劳工组织于2015年和2017年开展了两次问卷调查,样本覆盖全球75个国家的3500名劳动者。这些劳动者在全球运作的5家大型微任务平台工作。基于问卷调查结果,本文阐述了劳动者的基本特点及其从事这类工作任务的动机,分析了微任务平台的工作条件,介绍了鼓励平台和平台用户遵守最低标准的做法与实践,并提出了改善数字就业平台工作条件的一系列原则。 | Janine Berg Marianne Furrer Ellie Harmon Uma Rani M Six Silberman 孟彤 | 2019 | 中国劳动2019，，4： | 3 |
| 3 | Influence of TiOz on proton conductivity in fuel cell electrolytes based on sol-gel derived P2O5-SiO2 glasses显示文摘 | Uma T Nogami M | 2005 | Journal of Non-Crystalline Solids2005，，351： | 1 |
| 4 | DNA binding and cleavage properties of certain tetrammine ruthenium(ll) complexes of modified 1,10-phenanthrolines, effect of hydrogen-bonding on DNA-binding affinity 显示文摘 | UMA MAHESWARI P PALANIANDAVAR M | 2004 | Journal of Inorganic Biochemistry2004，98，2： | 1 |
| 5 | Expression, purification and characterization of equine lactoferrin inPichia pasto- ris 显示文摘 | PARAMSIVAM M SARAVANAN K UMA K | 2002 | Prot Exp Purif2002，26，1： | 1 |
| 6 | Protection against radiation-induced chromosome damage in mouse bone marrow by Ocimum sanctum显示文摘 | GANASOUNDARI A UMA DEVI P RAO M N A | 1997 | Mutation Research1997，373，： | 1 |
| 7 | Enhanced control of integrating cascade processes with time delays using modified Smith predictor 显示文摘 | Uma S Chidarnbaram M Rao Seshagiri A Yoo C K | 2010 | Chemical Engineering Science2010，65，： | 1 |
| 8 | DNA binding and cleavage properties of certain tetrammine ruthenium (Ⅱ) complexes of modified 1,10-phenanthrolines-effect of hydrogenbonding on DNA-binding affinity显示文摘 | Uma MP Palaniandavar M | 2004 | J Inorg Biochem2004，98，2： | 1 |
| 9 | Rind of the rambutan, Nephelium Lappaceum, a potential source of natural antioxidants 显示文摘 | Uma P Cheng H M Theanmalar M | 2008 | Food Chem- istry2008，109，1： | 1 |
| 10 | Early indicators of prognosis in fulminant hepatic failure:an assessment of the model for end-stage liver disease (MELD) and King's College Hospital Criteria显示文摘 | Radha KD Sanjay J Uma M | 2007 | Liver Transplantation2007，13，8： | 1 |
| 11 | Acute lung injury and acute respiratory distress syndrome in pregnancy 显示文摘 | Venkata DB Uma M Michael AM | 2004 | Crit Care Clin2004，20，： | 1 |
| 12 | Enhanced control of integrating cascade processes with time delays using modified Smith predictor显示文摘 | Uma S Chidambaram M Rao Seshagiri A Yoo C k | 2010 | Chemical Engineering Science2010，65，： | 1 |
| 13 | Temperature-dependent thermal conductivity of undoped polycrystalline silicon layers显示文摘 | Uma S McConnell A D Asheghi M | | 0，，02： | 1 |
| 14 | Excited state intramoleeular proton transfer in anionic analogues of malonalde- hyde显示文摘 | Scheiner S Kar T C uma M | 1997 | The Journal of Physical Chemistry A1997，101，33： | 1 |
| 15 | Protection a- gainst radiation-induced chromosome damage in mouse bone marrow by Oclrnum sancyum显示文摘 | Canasoundari A Uma Devi P Rao M N A | 1997 | Mutation Research1997，373，： | 1 |
| 16 | Granularcomputing, rough entropy and object extraction显示文摘 | Pal Sankar K Uma Shankar B Pabitra M | 2005 | PatternRecognition Letters2005，26，16： | 1 |
| 17 | A New Resonance-Based Method for the Measurement of Nonmagnetic-Conducting-Sheet Thickness 显示文摘 | Suresh K Uma G Umapathy M | 2011 | IEEE Transactions on Instrumentation and Measurement2011，60，12： | 1 |
| 18 | Genetic variability in recovery growth and stress proteins in response to polyethylene glycol and salt stress in finger millet 显示文摘 | UMA S T PRASAD G UDAYA M KUMAR | 1995 | Annals of Botany1995，76，： | 1 |
| 19 | Chemical mediation of prey recognition byspider-hunting wasps显示文摘 | Uma DB Weiss M | | 0，，01： | 1 |
| 20 | Persistently high venous-to-arterial carbon dioxide differences during early resuscitation are associated with poor outcomes in septic shock显示文摘 | Ospina-Tascón GA Bautista-Rincón DF Uma(n)a M | 2013 | Crit Care2013，17，： | 1 |
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