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24篇 您的检索式:作者名="Chula"
    题名 作者 年代 出处 被引量
1Spatiotemporal variation in snow cover and its effects on grassland phenology on the Mongolian Plateau显示文摘Snow cover is an important water source for vegetation growth in arid and semi-arid areas,and grassland phenology provides valuable information on the response of terrestrial ecosystems to climate change.The Mongolian Plateau features both abundant snow cover resources and typical grassland ecosystems.In recent years,with the intensification of global climate change,the snow cover on the Mongolian Plateau has changed correspondingly,with resulting effects on vegetation growth.In this study,using MOD10A1 snow cover data and MOD13A1 Normalized Difference Vegetation Index(NDVI)data combined with remote sensing(RS)and geographic information system(GIS)techniques,we analyzed the spatiotemporal changes in snow cover and grassland phenology on the Mongolian Plateau from 2001 to 2018.The correlation analysis and grey relation analysis were used to determine the influence of snow cover parameters(snow cover fraction(SCF),snow cover duration(SCD),snow cover onset date(SCOD),and snow cover end date(SCED))on different types of grassland vegetation.The results showed wide snow cover areas,an early start time,a late end time,and a long duration of snow cover over the northern Mongolian Plateau.Additionally,a late start,an early end,and a short duration were observed for grassland phenology,but the southern area showed the opposite trend.The SCF decreased at an annual rate of 0.33%.The SCD was shortened at an annual rate of 0.57 d.The SCOD and SCED in more than half of the study area advanced at annual rates of 5.33 and 5.74 DOY(day of year),respectively.For grassland phenology,the start of the growing season(SOS)advanced at an annual rate of 0.03 DOY,the end of the growing season(EOS)was delayed at an annual rate of 0.14 DOY,and the length of the growing season(LOS)was prolonged at an annual rate of 0.17 d.The SCF,SCD,and SCED in the snow season were significantly positively correlated with the SOS and negatively correlated with the EOS and LOS.The SCOD was significantly negatively correlated with the SOS and positively correlated with the EOS and LOS.The SCD and SCF can directly affect the SOS of grassland vegetation,while the EOS and LOS were obviously influenced by the SCOD and SCED.This study provides a scientific basis for exploring the response trends of alpine vegetation to global climate change.SA Chula MENG Fanhao LUO Min LI Chenhao WANG Mulan ADIYA Saruulzaya BAO Yuhai 2021Journal of Arid Land2021,13,4:5
2Assessing remotely sensed and reanalysis products in characterizing surface soil moisture in the Mongolian Plateau显示文摘Soil moisture(SM)plays a crucial role in the dynamics of coupled atmosphere,water,energy,and carbon cycles.In this study,the spatiotemporal distribution and variations of SM in the Mongolian Plateau were investigated for the period of 1982-2018 based on four gridded SM datasets.Taking the observed SM from 33 monitoring stations as a reference,the reliability of these four gridded products was validated,and the three-cornered hat(TCH)method was also applied to evaluate their uncertainties.Major results indicated that all these four products underestimated the SM in this region at different levels.The ERA-Interim SM performed much better than other three products,with a higher R of 0.53 and lower ubRMSE of 0.0378 m^(3)·m^(−3).Except for ECV,the surface SM exhibited a decreasing trend at−0.0004 to−0.0008 m^(3)·m^(−3)/decade in the warm season(from April to October)over the past 37 years.The greatest decreases in SM occurred in the summer season.Precipitation change plays a more important role in explaining the variations of SM than temperature reported by partial correlation analysis.The results of this study will benefit our understanding of the climate change effects and the protection of the ecological systems in this region.Min Luo Chula Sa Fanhao Meng Yongchao Duan Tie Liu Yuhai Bao 2021International Journal of Digital Earth2021,14,10:2
3Stenosis in hemodialysis arteriovenous fistula: evaluation and treatment 显示文摘Campos RP Do Nascimento MM Chula DC 2006Hemodial Int2006,10,:1
4Stenosis in he- modialysis arteriovenous fistula evaluation and treatment显示文摘Campos PR Do Nascinento MM Chula DC 2006He modial Int2006,10,2:1
5The effects of notoginsenoside R(1)on the intestinal absorption of geniposide by the everted rat gut sac model显示文摘Chula S Hang L Yinying B 2012J Ethnopharmacol2012,142,1:1
6Arterial blood gas changes with a hyperinflation and hyperoty- genation suctioning intervention in critically ill patients 显示文摘Chula M 1988Heart and Lung1988,17,:1
7Stenosis in hemodialysis arteriovenous fistula evaluation and treatment显示文摘CAMPOS P R DONASCINENTO M M CHULA D C 2006Hemodial Int2006,10,2:1
8Stenosis in hemodialysis arteriovenous fistula: evaluation and treatment显示文摘CAMPOS R P DO-NASCIMENTO M M CHULA D C 2006Hemodial lnt2006,10,2:1
9Arterial blood gas changes with a hyperinflation and hyperoty-genation suctioning intervention in critically ill patients显示文摘 1988Heart and lung1988,17,:1
10Stenosis in hemodialysis arteriovenous fistula:evaluation and treatment显示文摘Campos R P Do-Nascimento M M Chula D C 2006Hemodial Int2006,10,2:1
11Stenosis in hemo- dialysis aefiovenous fistula : evaluation and treatment 显示文摘Campos RP Do Nascimento MM Chula DC 2006Hemodial Int2006,10,1:1
12The Ramsey Numberfor a Cycle of Length Five VS-A Complete Graph of OrderSix显示文摘 Rousseau Cecil C 2000Journal of Graph Theory2000,35,14:1
13Stenosis in hemodialysis arteriovenous fistula evaluation and treatment显示文摘Campos PR Do Nascinento MM Chula DC 2006Hemodial Int2006,10,:1
14Stenosis in hemodialysis arter- iovenous fistula: evaluation and treat- ment 显示文摘Campos RP Do Nascimento MM Chula DC 2006Hemodial Int2006,10,2:1
15Minocycline-EDTA lock solution prevents catheter-related bacteremia in hemodialysis显示文摘Campos RP Do N M Chula DC 2011Journal of the American Society of Nephrology2011,22,10:1
16The effects of notoginsen- oside R1 on the intestinal absorption of geniposide by the everted rat gut sac model 显示文摘CHULA S HANG L BA Y Y 2012J Ethnopharmacol2012,142,1:1
17Peritioneal dialysis access:what' s the best approach?显示文摘Mella M C Chula D C 2012Contrib Nephrol2012,178,:1
18Urinary cystatin C:pediatric reference intervals and comparative assessment as a biomarker of renal injury among children in the regions with high burden of CKDu in Sri Lanka显示文摘Background Cystatin C(Cys-C)is an emerging biomarker of renal diseases and its clinical use,particularly for screening the communities affected by chronic kidney disease of unknown etiology(CKDu),is hindered due to the lack of reference intervals(RIs)for diverse ethnic and age groups.The present study aimed to define RIs for urinary Cys-C(uCys-C)for a healthy pediatric population in Sri Lanka and in turn compare the renal function of the residential children in CKDu endemic and non-endemic regions in Sri Lanka.Methods A cross-sectional study was conducted with 850 healthy children(10-17 years)from selected locations for reference interval establishment,while a total of 892 children were recruited for the comparative study.Urine samples were collected and analyzed for Cys-C,creatinine(Cr)and albumin.Cr-adjusted uCys-C levels were partitioned by age,and RIs were determined with quantile regression(2.5th,50th and 97.5th quantiles)at 90%confidence interval.Results The range of median RIs for uCys-C in healthy children was 45.94-64.44 ng/mg Cr for boys and 53.58-69.97 ng/mg Cr for girls.The median(interquartile range)uCys-C levels of children in the CKDu endemic and non-endemic regions were 58.18(21.8-141.9)and 58.31(23.9-155.3)ng/mg Cr with no significant difference(P=0.781).A significant variation of uCys-C was noted in the children across age.Conclusions Notably high uCys-C levels were observed in children with elevated proteinuria.Thus,uCys-C could be a potential biomarker in identifying communities at high risk of CKDu susceptibility.Patabandi Maddumage Mihiri Ayesha Sandamini Pallage Mangala Chathura Surendra De Silva Thibbotuwa Deniya Kankanamge Sameera Chathuranga Gunasekara Sakuntha Dewaka Gunarathna Ranawake Arachchige Isini Pinipa Chula Herath Sudheera Sammanthi Jayasinghe Ediriweera Patabandi Saman Chandana Nishad Jayasundara 2022World Journal of Pediatrics2022,18,3:1
19Stenosis in hemodialysis alteriovenous f istulaievaluation and treatment显示文摘Campos RP Do Nascimento MM Chula DC 2006Hemodial Int2006,10,2:1
20Complications of the peritoneal access and their management 显示文摘Campos RP Chula DC Riella MC 2009Contrib Nephrol2009,163,2:1
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