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| 1 | Contemporary and Historic Population Structure of Abies spectabilis at Treeline in Barun Valley,Eastern Nepal Himalaya显示文摘Treeline ecotone dynamics of Abies spectabilis(D. Don) Mirb. in the Barun valley,Makalu Barun National Park, eastern Nepal Himalaya were studied by establishing seven plots(20 m ×variable length) from the forestline to the tree species limit: three plots on the south- and north-facing slopes each(S1-S3, N1-N3), and one plot on the eastfacing slope(E) in the relatively undisturbed forests.A dendroecological method was used to study treeline advance rate and recruitment pattern. In all the plots,most trees established in the early 20 th century, and establishment in the second half of the 20 th century was confined to the forestline area. Treeline position has not advanced substantially in the Barun valley,with only 22 m average elevational shift in the last 130 years, and with average current shifting rate of 14cm/yr. Moreover, no significant relationship was found between tree age and elevation on the south-,north-, and east-facing slopes. The number of seedlings and saplings in near the treeline area was negligible compared to that near the forestline area.Therefore, A. spectabilis treeline response to the temperature change was slow, despite the increasing temperature trend in the region. Beside the temperature change, factors such as high inter-annual variability in temperature, dense shrub cover, and local topography also play an important role in treeline advance and controlling recruitment pattern above the treeline. | Parveen Kumar CHHETRI David M.CAIRNS | 2015 | Journal of Mountain Science2015,12,3: | 10 |
| 2 | Correlation between KCNQ1 and KCNJ11 gene polymorphisms and type 2 and posttransplant diabetes mellitus in the Asian Indian population显示文摘Type 2 diabetes mellitus(T2DM)and post-transplant diabetes mellitus(PTDM)share a common pathophysiology.However,diabetes mellitus is a complex disease,and T2DM and PTDM have different etiologies.T2DM is a metabolic disorder,characterized by persistent hyperglycemia,whereas PTDM is a condition of abnormal glucose tolerance,with variable onset after organ transplant.The KCNQ1 and KCNJ11 gene encode potassium channels,which mediate insulin secretion from pancreatic b-cells,and KCN gene mutations are correlated with the development of diabetes.However,no studies have been carried out to establish an association between KCNQ1 and KCNJ11 gene polymorphisms and T2DM and PTDM.Therefore,our study was aimed at the identification of the role of KCNQ1 and KCNJ11 gene polymorphisms associated with T2DM and the risk of developing PTDM in the Asian Indian population.We have carried out a caseecontrol study including 250 patients with T2DM,250 control subjects,42 patients with PTDM and 98 subjects with non-PTDM.PCR-RFLP analysis was carried out following the isolation of genomic DNA from EDTA-blood samples.The results of the present study reveal that two single nucleotide polymorphisms(rs2283228 and rs5210,of the KCNQ1 and KCNJ11 genes,respectively)are associated with both T2DM and PTDM.The results of our study suggest a role of KCNQ1 and KCNJ11 gene variants in the increased risk of T2DM and PTDM in the Asian Indian population. | Imran Ali Khan Kiran Kumar Vattam Parveen Jahan Kamal Kiran Mukkavali Qurratulain Hasan Pragna Rao | 2015 | Genes & Diseases2015,2,3: | 6 |
| 3 | Dendroclimatic response of Abies spectabilis at treeline ecotone of Barun Valley, eastern Nepal Himalaya显示文摘A dendroclimatic study was conducted in the treeline ecotone of Barun Valley,eastern Nepal,to determine the tree-ring climate response and ring width trend of Abies spectabilis.A 160-year-old chronology,from 1850 to 2010,was developed from 38 tree-ring samples.No higher growth in recent decades was observed in tree-ring width in this area.The mean temperature of the current year in February and in the combined winter months of December,January,and February showed significant positive correlation with tree-ring width,although no significant correlation was found between tree-ring width and the precipitation pattern of the region.This tree-ring climate response result is different from that in other studies in Nepal,which could be attributed to location and elevation. | Parveen Kumar Chhetri David M.Cairns | 2016 | Journal of Forestry Research2016,27,5: | 4 |
| 4 | Association of endotheli- al nitric oxide synthase gene polymorphisms with coronary artery disease:an updated meta-analysis and systematic review显示文摘 | RAI H PARVEEN F KUMAR S | 2014 | PLoS One2014,9,11: | 1 |
| 5 | Influence of Different Ureas on Aggregational Properties of Aqueous Surfactant Systems 显示文摘 | Kumar S Khan Z A Parveen N | 2005 | Colloids and Surfaces A: Physicochemical and Engineering Aspects2005,268,13: | 1 |
| 6 | Backward error recovery protocols in distributed mobile systems: a survey 显示文摘 | Gupta Sunil K Chauhan R K Kumar Parveen | 2008 | Journal of Theoretical and Applied Information Technology2008,30,4: | 1 |
| 7 | Traditional uses of medicinal plants among the rural communities of Churu district in the Thar Desert, India显示文摘 | Parveen B. Upadhyay Shikha Roy Ashwani Kumar | 2007 | Journal of Ethnopharmacology2007,,3: | 1 |
| 8 | Additive-induced association in unconventional systems: A case of the hydrotrope显示文摘 | Sanjeev Kumar Nahid Parveen Kabir-ud-Din | 2005 | Journal of Surfactants and Detergents2005,,1: | 1 |
| 9 | Highly sensitive glucose sensing with multi-walled carbon nanotubes-polyaniline composite显示文摘 | Amit L Sharma Parveen Kumar Akash Deep | 2012 | Polymer-Plastics Technology and Engineering2012,51,13: | 1 |
| 10 | Predicting upslope expansion of sub-alpine forest in the Makalu Barun National Park, Eastern Nepal, with a hybrid cartographic model显示文摘The natural upper boundary of a forest(forest line) in mountain environments is an indicator of climate conditions. An increase in global average temperatures has resulted in an upward advance of the forest line. This advance may result in fragmentation of the alpine ecosystem and a loss of biodiversity. Therefore, it is important to identify potential areas where current forests can advance under scenarios of future climate change. I used expert knowledge and cartographic modeling to create a hybrid cartographic model considering five topographic variables to predict areas where forest line can expand in the future.The prediction accuracy of the model is around 82%. The model is able to predict areas above the current forest line that are suitable or unsuitable for future forest advance.Further inclusion of high-resolution satellite imagery and digital elevation models, as well as field-based information into the model can help to improve the model accuracy. | Parveen Kumar Chhetri | 2018 | Journal of Forestry Research2018,29,1: | 1 |
| 11 | A virtual RV-M1 robot system 显示文摘 | Rajesh Kumar Parveen Kalra Neelam R Prakash | 2011 | Robotics and Computer-Integrated Manufacturing2011,27,6: | 1 |
| 12 | Effect of DDVP on the histology and AChE kinetics of heart muscles of Rattus norvegicus 显示文摘 | Parveen M Kumar S | 2001 | J Environ Biol2001,22,4: | 1 |
| 13 | Structural and Dielectric Properties of Substituted Barium Titanate Ceramics for Capacitor Applications显示文摘 | Preeti Sharma Parveen Kumar Kundu R S | 2015 | Ceramics International2015,41,13: | 1 |
| 14 | A new chromone from Cassia nodosa 显示文摘 | KUMAR R ILYAS M PARVEEN M | 2006 | Journal of Asian Natural Products Research2006,8,7: | 1 |
| 15 | Influence of Source and Time of Potassium Application on Potato Growth, Yield, Economics and Crisp Quality显示文摘 | Parveen Kumar S. K. Pandey B. P. Singh S. V. Singh Dinesh Kumar | 2007 | Potato Research2007,,1: | 1 |
| 16 | Performance analysis of 32-Bit array multiplier with a carry save adder and with a carry-look-ahead adder显示文摘 | Raminder Preet Pal Singh Parveen Kumar Balwinder Singh | 2009 | International Journal of Recent Trends in Engineering2009,2,6: | 1 |
| 17 | Anticancer activity of esculetin via-modulation of Bcl-2 and NF-κB expression in benzopyrene induced lung carcinogenesis in mice显示文摘 | Jay R. Anand Harish Rijhwani Kanakadurga Malapati Parveen Kumar Kandarpa Saikia Mangala Lakhar | 2013 | Biomedicine & Preventive Nutrition2013,,2: | 1 |
| 18 | Identification and mapping of two powdery mildew resistance genes in Triticum boeoticum L.显示文摘 | Parveen Chhuneja Krishan Kumar Daniel Stirnweis Severine Hurni Beat Keller Harcharan Dhaliwal Kuldeep Singh | 2012 | Theoretical and Applied Genetics2012,,6: | 1 |
| 19 | Effect of DDVP on the histology and AChE kinetics of heart muscles of Rattus norvegicus显示文摘 | Parveen M Kumar S | 2001 | J Environ Biol2001,22,: | 1 |
| 20 | Methods for ptetreatment of lignocellulosic biomass for effcient hydrolysis and biofuel production显示文摘 | PARVEEN KUMAR BARRETT D M DELWiCHE M J | 2009 | Ind Eng Chem Res2009,48,8: | 1 |