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| 1 | Assessment of tumor markers CA 19-9,CEA,CA 125,and CA 242 for the early diagnosis and prognosis prediction of gallbladder cancer显示文摘BACKGROUND Gallbladder cancer(GBC)is one of the leading and aggressive cancers in this region of India.It is very difficult to diagnose in the early stage,as it lacks typical early signs and symptoms;thus,the diagnosis is often in the advanced stage,which ultimately leads to a poor 5-year survival outcome.Tumor markers including carbohydrate antigen 19-9(CA 19-9),carcinoembryonic antigen(CEA),CA 125,CA 242,and alpha fetoprotein are used as indicators in the diagnosis and prognosis of GBC.AIM To compare tumor marker levels between GBC and benign GB diseases(GBDs)and to assess the combined use of tumor markers to increase the diagnostic accuracy for GBC.METHODS Patients of either sex aged≥18 years,with suspected GBC(GB polyp,irregular thick GB wall,GB mass,porcelain GB)on the basis of radiological imaging were included in this study.GB wall thickness using ultrasonography and tumor markers CEA,CA 125,CA 19-9,and CA 242 in all patients were recorded.All cases after surgical intervention were divided into two groups,GBC and benign GBD,according to histopathological examination findings.The cases were followed up and clinical findings,radiological findings,and levels of tumor markers were assessed.RESULTS A total of 200 patients were included in this study,of whom 80 patients had GBC and 120 patients had benign GBD.The median(interquartile range)age was 52.0(41.0-60.0)years and the majority of patients(132,66.0%)were women.Tumor markers including CA 19-9,CA 125,CEA,and CA 242 were significantly elevated in patients with GBC(P<0.001).There was a significant reduction in tumor markers at 3 and 6 mo from baseline(P<0.001).The mean survival of patients with normal and elevated levels of tumor markers CA 125,CA 19-9,and CEA was comparable;however lymph node metastasis and CA 242 expression level were independent prognostic factors.CONCLUSION Serum levels of tumor markers including CA 19-9,CA 125,CEA,and CA 242 were significantly associated with GBC.However,no significant association was observed between the presence of elevated levels of any tumor marker with respect to survival.Tumor marker assessment during follow-up may represent a treatment response. | Seema Rani Sinha Prem Prakash Rakesh Kumar Singh Dinesh Kumar Sinha | 2022 | World Journal of Gastrointestinal Surgery2022，14，11： | 5 |
| 2 | Synthesis of nanocrystalline ZnO powder via sol–gel route for dye-sensitized solar cells显示文摘 | Seema Rani Poonam Suri P.K. Shishodia R.M. Mehra | 2008 | Solar Energy Materials and Solar Cells2008，，12： | 2 |
| 3 | A Review and Analysis of Localization Techniques in Underwater Wireless Sensor Networks显示文摘In recent years,there has been a rapid growth in Underwater Wireless Sensor Networks(UWSNs).The focus of research in this area is now on solving the problems associated with large-scale UWSN.One of the major issues in such a network is the localization of underwater nodes.Localization is required for tracking objects and detecting the target.It is also considered tagging of data where sensed contents are not found of any use without localization.This is useless for application until the position of sensed content is confirmed.This article’s major goal is to review and analyze underwater node localization to solve the localization issues in UWSN.The present paper describes various existing localization schemes and broadly categorizes these schemes as Centralized and Distributed localization schemes underwater.Also,a detailed subdivision of these localization schemes is given.Further,these localization schemes are compared from different perspectives.The detailed analysis of these schemes in terms of certain performance metrics has been discussed in this paper.At the end,the paper addresses several future directions for potential research in improving localization problems of UWSN. | Seema Rani Anju Anupma Sangwan Krishna Kumar Kashif Nisar Tariq Rahim Soomro Ag.Asri Ag.Ibrahim Manoj Gupta Laxmi Chandand Sadiq Ali Khan | 2023 | Computers, Materials & Continua2023，，6： | 1 |
| 4 | Mechanism of Charge Recombination and IPCE in ZnO Dye-sensitized Solar Cells Having I-/I3 - and Br-/Br3- Redox Couple 显示文摘 | Seema Rani | 2011 | Progress photovoltaic Research Application2011，19，： | 1 |
| 5 | Decadal trends in precipitable water vapor over the Indus River Basin using ERA5 reanalysis data显示文摘Precipitable Water Vapor(PWV)constitutes a pivotal parameter within the domains of atmospheric science,and remote sensing due to its profound influence on Earth’s climate dynamics and weather patterns.It exerts a significant impact on atmospheric stability absorption and emission of radiation,thus engendering alterations in the Earth’s radiative equilibrium.As such,precise quantification of PWV holds the potential to enhance weather prognostication and fortify preparedness against severe meteorological phenomena.This study aimed to elucidate the spatial and temporal changes in seasonal and annual PWV across the Indus River Basin and its sub-basins using ERA5 reanalysis datasets.The present study used ERA5 PWV(entire atmospheric column),air temperature at 2 m(t2m)and 500 hPa(T_500hPa),evapotranspiration,and total cloud cover data from 1960 to 2021.Theil Sen slope estimator and Mann-Kendall test were used for trend analysis.Correlation and multiple regression methods were used to understand the association of PWV with other factors.The findings have unveiled the highest increase in mean PWV during the monsoon(0.40 mm/decade),followed by premonsoon(0.37 mm/decade),post-monsoon(0.27 mm/decade),and winter(0.19 mm/decade)throughout the study period.Additionally,the mean PWV exhibited the most pronounced positive trend in the sub-basin Lower Indus(LI),followed by Panjnad(P),Kabul(K),and Upper Indus(UI)across all seasons,except winter.Annual PWV has also risen in the Indus basin and its sub-basins over the last six decades.PWV exhibits a consistent upward trend up to an elevation of 3500 m within the basin which is most pronounced during the monsoon season,followed by the pre-monsoon.The escalating PWV within the basin is reasonably ascribed to increasing air temperatures,augmented evapotranspiration,and heightened cloud cover.These findings hold potential utility for pertinent authorities engaged in water resource management and planning. | Seema RANI Jyotsna SINGH Subhash SINGH Purushottam TIWARI Suraj MAL | 2023 | Journal of Mountain Science2023，20，10： | 1 |
| 6 | Synthesis of nanocrystaUine ZnO powder via solgel route for dye -sensitized solar cells显示文摘 | Seema Rani PoonamSuri P K Shishodia | 2008 | Solar Energy Materials & Solar Cells2008，92，： | 1 |
| 7 | Synthesis,characterization and adsorptive application of ferrocene based mesoporous material for hazardous dye congo red显示文摘 | KAUR Sumanjit RANI Seema KUMAR Vipin | 2015 | Journal of Industrial and Engineering Chemistry2015，26，： | 1 |
| 8 | RETRACTED: Microbial production of dihydroxyacetone显示文摘 | Ruchi Mishra Seema Rani Jain Ashok Kumar | 2008 | Biotechnology Advances2008，，4： | 1 |
| 9 | Synthesis of nanocrystalline ZnO powder via solgel route for dye-sensitized solar cells显示文摘 | SEEMA RANI POONAMSURI SHISHODIA P K | 2008 | Solar EnergyMaterials & Solar Cells2008，92，12： | 1 |
| 10 | Microbial biosorbents:Meeting challenges of heavy metal pollution in aqueous solutions显示文摘 | Rani G Prerna A Seema K | 2003 | Current Science2003，78，8： | 1 |
| 11 | Evaluating spatial and elevation-wise daytime/nighttime LST trends across the Indus River Basin显示文摘Land surface temperature(LST)is a crucial parameter for understanding the Earth's surface energy balance,which provides insights into climate dynamics and local environmental conditions.Thus,the present study aims to evaluate the spatial and elevation-wise trends in the daytime,nighttime,and mean LST across the Indus River Basin(IRB)using MODIS 8-day product for the period between 2002 and 2022.The elevation,cloud cover,and land cover type data are used for explaining the emerging LST trends.The Theil slope estimator and MannKendall significance test were used for estimating the seasonal and annual LST trends.The findings show warming in mean daytime(0.020-0.024℃/yr)(except winter and post-monsoon),nighttime(0.013-0.049℃/yr),and mean(0.001-0.042℃/yr)LST in all the seasons(highest in monsoon).The annual mean nighttime LST(0.025℃/yr)is rising significantly faster than the mean daytime LST(0.0016℃/yr),showing the presence of a“nighttime warming effect”,which possibly increases human discomfort,particularly during the warm pre-monsoon and humid monsoon season.Elevation-dependent warming(EDW)is predominant in mean daytime LST in two elevation zones,namely(i)0-3 km and(ii)above 4 km,in all seasons,except in post-monsoon.In contrast,EDW in mean nighttime LST is observed up to 3 km and above 6 km in the basin in all the seasons,excluding post-monsoon.The warming trend in LST may be attributed to rising atmospheric moisture,cloud cover,declining snow cover,and changes in land cover to non-vegetated land.However,further investigations will involve exploring the underlying factors contributing to the observed anomalies in nighttime LST,considering variables such as regional energy balance and atmospheric stability.This research contributes to an understanding of the thermal dynamics in the mountain basin,aiding in climate studies,land management,and the development of effective adaptation strategies in the IRB. | Suraj MAL Kavya AGRAWAL Seema RANI Pyarimohan MAHARANA Viswanathan Anantha Venkat RAMAN | 2023 | Journal of Mountain Science2023，20，11： | 0 |
| 12 | Study of the structural and electrical behavior of Bi(Mg,Ti)O_(3)modified(Ba,Ca)TiO_(3)ceramics显示文摘The ability of BaTiO_(3)to form solid solutions with different dopants(both iso-and aliovalent)makes it versatile for various applications.In the present study,(Ba,Ca)TiO_(3)(BCT)is modified with Bi(MgTi)O_(3)(BMT)in search for new lead-free ferroelectric material and improve their properties.For this purpose,BCT acts as a main base material and BMT acts as a modifier to fabricate a multifunctional material.In this study,we report the structural and electrical properties of lead free piezo-ceramics(1-x)(Ba_(0.8)Ca_(0.2))TiO_(3–x)Bi(Mg_(0.5)Ti_(0.5))O_(3)with x=0.2,0.4,0.5 prepared by solid-state sintering technique.Single perovskite phase with tetragonal structure is obtained for all the compositions,which is reconfirmed by the Raman Spectroscopic study.Dielectric study confirm the temperature stable behavior of the dielectric permittivity values above 300℃.The dielectric constant value decreases with increase in BMT doping content.Impedance Spectroscopic study confirms non-Debye type dielectric relaxation in the specimen.The Nyquist plot and conductivity studies show the negative temperature coefficient of resistance behavior(NTCR)of the samples. | Md.Kashif Shamim Seema Sharma Arpana Singh Radheshyam Rai Rashmi Rani | 2016 | Journal of Advanced Dielectrics2016，6，4： | 0 |
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