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| 1 | Zn、Cd单一及复合污染对黑麦草根分泌物及根际Zn、Cd形态的影响显示文摘采用根袋土培试验,研究了锌、镉单一及复合污染对重金属富集植物黑麦草生长、锌镉积累、根分泌物及根际Zn、Cd形态的影响.结果表明,锌镉共存下(8 mmol/kg Zn+2 mmol/kg Cd),黑麦草对锌、镉的吸收为协同效应;仅镉污染时(2 mmol/kg Cd),镉对植株吸收锌为抑制效应.黑麦草吸收的锌、镉主要集中在地上部,以锌、镉复合污染时植株地上部对锌、镉的富集量最大,分别达到3 108.72、73.97 mg/kg,具有作为土壤重金属锌、镉污染植物修复材料的潜力.根际的松结合态锌、镉(交换态、碳酸盐结合态和铁锰结合态)含量大于其非根际的松结合态锌、镉含量.Cd污染和Zn、Cd复合污染的根际和非根际土壤镉形态均以交换态>碳酸盐结合态>铁锰结合态>残渣态>有机结合态.Zn污染及Zn、Cd复合污染根际和非根际土壤各锌形态以铁锰结合态>碳酸盐结合态>残渣态>有机结合态>交换态,而Cd污染的根际和非根际的锌形态则以残渣态>铁锰结合态>有机结合态>碳酸盐结合态>交换态.Zn、Cd污染促进了黑麦草根系氨基酸的分泌,降低了根际土壤的pH值,以Zn、Cd复合污染根际土壤氨基酸总量最大,分别为对照、Zn和Cd污染的1.95、1.54和1.40倍,根际土壤的pH值最低(5.18).根际氨基酸含量在重金属胁迫下明显增加,可能与黑麦草适应重金属胁迫有关.根际pH值高于非根际是根际Zn、Cd有效性大于非根际的重要原因. | 徐卫红 王宏信 刘怀 熊治庭 Balwant Singh | 2007 | 环境科学2007，28，9： | 56 |
| 2 | Effects of insoluble Zn,Cd,and EDTA on the growth,activities of antioxidant enzymes and uptake of Zn and Cd in Vetiveria zizanioides显示文摘A root-bag experiment was conducted to study the effects of insoluble Zn,Cd,and ethylenediaminetetraacetic acid(EDTA) on the plant growth,activities of antioxidant enzymes,proline,glutathione(GSH),water-soluble proteins and malondialdehyde(MDA) of Vetiveria zizanioides.The V.zizanioides uptake capacity of Zn and Cd also determined.The results showed that plant growth of V.zizanioides was inhibited by Zn and Cd.The shoot dry weight(SDW) and root dry weight(RDW) decrease by 14.2%,14.1%,17.0% and 17.3%,32.5%,35.7%,respectively,compared to the control without EDTA addition.After adding EDTA,shoot and root dry weight decreased over 10% and 15%,respectively.The toxicity from insoluble Zn and Cd in soil on SDW and RDW of V.zizanioides was in order:Zn+Cd > Cd > Zn.The activities of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT),and contents of MDA and proline increased significantly,while the contents of GSH and water-soluble proteins decreased markedly with increasing Zn and Cd toxicity.With EDTA,shoot and root Zn concentrations increased in the Zn treatment by 7.3% and 37.4%,and Cd concentrations in the combined Zn and Cd treatment increased by 18.6% and 391.9% compared to the treatment without EDTA.However,Zn and Cd concentrations in shoot and roots decreased in the Cd treatment compared to the plants grown in absence of EDTA,with exception of root Cd concentration in the presence of EDTA. | XU Weihong LI Wenyi HE Jianping Balwant Singh XIONG Zhiting | 2009 | Journal of Environmental Sciences2009，21，2： | 16 |
| 3 | Anti-oxidation actions of curcumin in two forms of bed rest:oxidative stress serum and salivary markers显示文摘Objective:To determine the preventive effects of curcumin on peroxidative damage under two bed rest conditions.Methods:20 healthy male(10 with curcumin and 10 without curcumin ) volunteers were selected.They were studied before,during,and just on bed rest conditions at -6°head-down-tilt(HDT) bed rest and bed rest position(BD) for 10 days.We measured the salivary and serum oxidative markers such as Malonaldehyde,8-hydroxydeoxyguanosine, vitamin C and E just before HDT & BD.during HDT & BD experiment,and in course time of recovery with curcumin and without curcumin groups.Results:The values of serum and salivary vitamin C & E showed statistically significant decrease in both bed rest conditions as compared to those of the conditions before and during the recovery stage.However,these levels were not significantly lowered in curcumin groups in contrast to the groups without curcumin (P>0.05).MDA and 8-OHdG levels showed significant increase in simulating microgravity and zero gravity conditions as compared to those before and in the recovery stage.However,these levels were lower in curcumin groups in contrast to the groups without curcumin(P<0.05).Serum and salivary correlation analysis revealed a strong and highly significant correlation for MDA. vitamin C & E and 8 dihydro-2 deoxyguanosine(8-OHdG) in the conditions before,during and in the recovery periods in both bed rest conditions.Since saliva collection is easy and noninvasive, measurements of salivary marker levels may prove to be useful in the space research. Conclusions:Curcumin prevents peroxidative damage in both bed rest conditions.Further study is required on antioxidation actions of curcumin in space microgravity conditions. | Balwant Rai Jasdeep Kaur Maria Catalina | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，8： | 9 |
| 4 | 砷超积累植物粉叶蕨及其对砷的吸收富集研究显示文摘采用盆栽模拟试验,研究了澳大利亚蕨类植物粉叶蕨对砷的耐性及吸收富集砷的特征,同时比较了澳大利亚粉叶蕨(Pityrogramma calomelanos (L.) Link var. austroamericana (Domin) Farw)和中国蜈蚣草(Pteris vit-tataL.)在澳大利亚的Kurosol土壤上对As的吸收积累差异及植物修复效率。研究结果表明,在As投加浓度为2 400μmol/kg时,虽然粉叶蕨的生长受到一定抑制,但仍维持了较高的地上部生物量;地上部As含量达到2438.33 mg/kg DW时,超过了砷超积累植物的临界含量标准(1000 mg/kg);地上部As积累量为21.6 mg/株DW时,地上部对As的生物富集系数为18.6,地上部As含量大于根系As含量,基本符合As超积累植物的基本特征。与As超积累植物蜈蚣草相比较,暴露在As浓度为2400μmol/kg环境时,中国蜈蚣草对砷的耐性、地上部As含量及生物富集等方面均明显优于澳大利亚粉叶蕨,其地上部As含量和积累量分别为2936.13 mg/kgDW和41.1 mg/株DW。 | 徐卫红 Anthony George Kachenko Balwant Singh | 2009 | 水土保持学报2009，23，2： | 8 |
| 5 | Influence of Biochars on Nitrous Oxide Emission and Nitrogen Leaching from Two Contrasting Soils显示文摘 | Singh Bhupinder Pal Hatton Blake J Singh Balwant Cowie Annette L Kathuria Amrit | 2010 | Journal of Environmental Quality2010，，4： | 4 |
| 6 | H_6P_2W_(18)O_(62)á18H_2O: A green and reusable catalyst for one-pot synthesis of pyrano[4,3-b]pyrans in water显示文摘A convenient,effcient and environmentally benign procedure has been developed for the synthesis of pyrano[4,3-b]pyran derivatives via a one-pot,three-component reaction of 4-hydroxy-6-methylpyran-2-one,aldehydes and malononitrile in water using H6P2W18O62á18H2O as catalyst.Reusability of the catalyst and reaction media,short reaction times and easy isolation of products are some added advantages of the present methodology. | Deepika Rajguru Balwant S. Keshwal Shubha Jain | 2013 | Chinese Chemical Letters2013，24，11： | 3 |
| 7 | Agronomic performance of a high ash biochar in two contrasting soils显示文摘 | Benjamin Smider Balwant Singh | 2014 | Agriculture Ecosystems and Environment2014，，： | 2 |
| 8 | Influence of Biochars on Nitrous Oxide Emission and Nitrogen Leaching from Two Contrasting Soils显示文摘 | Singh Bhupinder Pal Hatton Blake J Singh Balwant Cowie Annette L Kathuria Amrit | 2010 | Journal of Environmental Quality2010，，4： | 2 |
| 9 | Methodology for Thermal Evaluation of Multichip Modules 显示文摘 | Lall Balwant S Guenin Bruce M Molnar Ronald J | 1995 | IEEE Trans Comp Packg Manufa Technol Part A1995，18，4： | 1 |
| 10 | Survey of biometricrecognition systems and their applications显示文摘 | Sulochana S Ravindra T Balwant S | 2010 | Journal ofTheoretical and Applied Information Technology2010，11，1： | 1 |
| 11 | The effect of cadmium,copper,lead,and zinc on the growth and reproduction of Priosotoma minuta Tullberg (Collembola)显示文摘 | Nursita A I Balwant S Lees E | 2005 | Ecotoxicol Environ Saf2005，60，3： | 1 |
| 12 | Influence of biochars on nitrous oxide emission and nitrogen leaching from two contrasting soils显示文摘 | Bhupinder P S Blake J H Balwant S | 2010 | Journal of Environmental Quality2010，39，4： | 1 |
| 13 | 三步法合成克奥托今[J]显示文摘 | BalwantS BhatiaPS HarinderS eta1 | | 火炸药0，，： | 1 |
| 14 | Heavy Metals Contamination in Vegetables Grown in Urban and Metal Smelter Contaminated Sites in Australia显示文摘 | Anthony George Kachenko Balwant Singh | 2006 | Water Air and Soil Pollution (-)2006，，1： | 1 |
| 15 | Assessing Conservation Values of Forest Communities in Nanda Devi Biosphere Reserve: Plant Diversity, Species Distribution and Endemicity显示文摘Present study has been conducted in a biodiversity rich Nanda Devi Biosphere Reserve between 2000-3800 m in two different forest physiognomy holding sites to analyze the structure and composition of the forest communities including richness of native, non native and endemic species,and suggest conservation values at community and reserve level.A total of 60 sites were sampled and grouped in 11 and 8 communities for two representative sites Pindari-Sunderdhunga-Kafni(PSK) and Lata-Tolma-Phagti(LTP) respectively.From the sampled sites, 451 species(11.8%, 53 trees;17.71%, 80 shrubs; and 70.51%, 318 herbs) have been recorded.In general, PSK site represented 73.6% and LTP site represented only 54.9% of the total plant species recorded in the study area.Out of total species in PSK site, native species contributed 59.6%(198spp.) and 24.7% species were endemic and near endemic.In LTP site, 66.5% species were Himalayan natives and 33.5% were endemic and near endemic.The species richness ranged from 4-23 ind ha-1(tree),3-18 ind ha-1(sapling), 5-19 ind ha-1(seedling) in PSK site and 4-18 ind ha-1(tree), 4-11 ind ha-1(sapling), 4-16 ind ha-1(seedling) in LTP site.The density ranged from 260-535 ind ha-1(tree), 145-633 ind ha-1(sapling), 1450-8170 ind ha-1(seedling) in PSK site and 599-1211 ind ha-1(tree), 70-951 ind ha-1(sapling),470-1665 ind ha-1(seedling) in LTP site.Species diversity for trees ranged from 0.73-3.37, saplings,0.64-2.67, seedlings, 0.70-2.51, shrubs, 1-2.34 and herbs, 2.02-3.21 in PSK site and 0.63-1.61, saplings,0.76-1.36, seedlings, 0.35-1.79, shrubs, 0.98-2.73 and herbs, 2.48-3.61 in LTP site.These recorded values were almost comparable with the studies conducted in sub-tropical, temperate and sub-alpine regions of the west Himalaya.In some cases the values were slightly higher than the reported values.The important communities with high conservation values have been identified based on different ecological parameters and species distribution.Among all the prioritized communities, Mixed Silver firRhododendron-Maple community in PSK site and Taxus wallichana- A.pindrow mixed community in LTP site supports maximum richness and density of native and endemic species.This study calls for development of adequate strategy and action plan for the conservation and management of habitats, species,and communities under changing climate and socioeconomic scenarios, so that sustainable utilization of the species could be ensured. | Balwant RAWAT Sanjay GAIROLA Ranbeer S.RAWAL | 2015 | Journal of Mountain Science2015，12，4： | 1 |
| 16 | Speech recognition using vec- tor quantization through modified K-means LBG algorithm 显示文摘 | Balwant A Sonkamble Doyea D D | 2012 | Computer Engineering and Intelligent Systems2012，3，7： | 1 |
| 17 | Dental age estimation from the developmental stage of the third molars in Iranian population显示文摘 | Balwant Rai Jasdeep Kaur Hamid Jafarzadeh | 2010 | Journal of Forensic and Legal Medicine2010，，6： | 1 |
| 18 | Are Bile Acids Involved in the Renal Dysfunction of Obstructive Jaundice? An Experimental Study in Bile Duct Ligated Rats显示文摘 | Balwant Kaler Tony Karram Winston A. Morgan Peter H. Bach Ibrahaim M. Yousef Arieh Bomzon | 2004 | Renal Failure2004，，5： | 1 |
| 19 | An improved proxy blind signature scheme with forward security显示文摘 | MANOJ KUMAR CHANDE BALWANT SINGH THAKUR | 2014 | International Journal of Computer Applications2014，，85： | 1 |
| 20 | Competitiveness and Urban Economy: Twenty-four Large US Metropolitan Areas显示文摘 | Peter K K Balwant S | 1999 | Urban Studies1999，56，56： | 1 |
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