Rajesh Kumar Ranjan

ORCID: 0000-0001-9969-0088
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About
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Research Areas
  • Heavy metals in environment
  • Water Quality and Pollution Assessment
  • Coastal wetland ecosystem dynamics
  • Groundwater and Isotope Geochemistry
  • Geochemistry and Geologic Mapping
  • Groundwater and Watershed Analysis
  • Geology and Paleoclimatology Research
  • Arsenic contamination and mitigation
  • Water resources management and optimization
  • Plant Pathogenic Bacteria Studies
  • Radioactivity and Radon Measurements
  • Orthopedic Surgery and Rehabilitation
  • Orthopaedic implants and arthroplasty
  • COVID-19 Clinical Research Studies
  • Elbow and Forearm Trauma Treatment
  • SARS-CoV-2 and COVID-19 Research
  • Geochemistry and Elemental Analysis
  • Microbial Community Ecology and Physiology
  • Anesthesia and Pain Management
  • Soil and Land Suitability Analysis
  • Geological formations and processes
  • Geological and Geophysical Studies
  • Isotope Analysis in Ecology
  • Bladder and Urothelial Cancer Treatments
  • Plant Pathogens and Fungal Diseases

Manipal Academy of Higher Education
2025

Kasturba Medical College, Manipal
2009-2025

Central University of South Bihar
2014-2024

Dr. Rajendra Prasad Central Agriculture University
2024

Central Agricultural University
2024

B.P. Koirala Institute of Health Sciences
2023

Mastercard (United States)
2021

Indian Agricultural Research Institute
2020

Indira Gandhi Institute of Medical Sciences
2017-2019

Jawaharlal Nehru Medical College Hospital
2019

In middle Gangetic plain, high arsenic concentration is present in water, which causes a significant health risk. Total 48 morphologically distinct arsenite resistant bacteria were isolated from plain. The minimum inhibitory (MIC) values of varied widely the range 1-15 mM isolates. On basis their MIC, two isolates, AK1 (KY569423) and AK9 (KY569424) selected. analysis 16S rRNA gene sequence selected isolates revealed that they are belong to genus Pseudomonas. AgNO3 test based microplate...

10.1016/j.btre.2018.02.002 article EN cc-by-nc-nd Biotechnology Reports 2018-02-08

SARS-CoV-2 is a newly emerging, highly transmissible, and pathogenic coronavirus in humans, which has caused global public health emergency economic crisis. To date, millions of infections thousands deaths have been reported worldwide, the numbers continue to rise. Currently, there no specific drug or vaccine against this deadly virus; therefore, pressing need understand mechanism through virus enters host cell. Viral entry into cell multistep process utilizes receptor binding domain spike...

10.20944/preprints202005.0260.v2 preprint EN 2020-07-10

Carbon dioxide (CO2) in the Earth's atmosphere is a significant greenhouse gas and plays pivotal role shaping carbon dynamics of specific regions. Here, we have examined spatio-temporal variations atmospheric CO2 Bihar region India provided critical information regarding climate change mitigation. NASA's Orbiting Observatory-2 (OCO-2) satellite retrieved dry air column average concentrations (XCO2) datasets (2015-2021) are used to analyse hot/cold spots, anomalies, moments, their...

10.1016/j.envadv.2024.100513 article EN cc-by-nc-nd Environmental Advances 2024-02-29

Globally, breast cancer is a significant public health concern in women. Modified radical mastectomy (MRM) commonly used surgical treatment. Postmastectomy pain serious because, if left untreated, can have psychological effects, resulting postoperative complications. This observational study aimed to assess the effectiveness of bupivacaine for analgesia administered using drains after MRM. Sixty female patients who underwent MRM were included study. Patients Group A received 40 mL 0.25%...

10.4103/aam.aam_151_24 article EN Annals of African Medicine 2025-03-04

The incidence of rice pests like the yellow stem borer (Scirpophaga incertulas Walker) and leaf folder (Cnaphalocrocis medinalis Guenee) can be influenced by a variety factors, including planting dates, methods, weather parameters. present investigation was undertaken to study effect dates methods associated with parameters on folder. experiment conducted at Rice research farm RPCAU, Pusa, in Randomized Block Design during years 2019 2020 ‘Rajendra Mahsuri 1.’ were categorized as early (15th...

10.9734/ijecc/2025/v15i44807 article EN International Journal of Environment and Climate Change 2025-04-11

Abstract A total of 138, samples have been collected in both pre and post monsoon season to understand the seasonal variability groundwater quality its suitability for drinking domestic water supply. The were analysed physical parameters, major ions along with fluoride uranium. results integrated GIS represent spatial variations index (DGQI) irrigation (IGQI). Results show that is alkaline nature largely controlled by silicate weathering, ion exchange reverse processes. However high nitrate...

10.2166/ws.2022.317 article EN cc-by-nc-nd Water Science & Technology Water Supply 2022-09-01

Abstract This study was performed to evaluate the spatial and temporal distribution of major ions in water samples a newly designated Ramsar site, namely Kabar Tal (KT) wetland Bihar. Samples were collected during summer, monsoon, winter seasons. The analytical GIS results show that concentration electrical conductivity, chloride, nitrate are higher summer than monsoon winter. However, cations such as sodium, potassium, calcium, magnesium summer. In addition, anions like sulphate phosphate...

10.2166/wst.2021.115 article EN cc-by Water Science & Technology 2021-03-24

ABSTRACT This manuscript presents the first inventory of dissolved ions (cations and anions) trace metals (Pb, Mn, Cr, Co, Ni, Cu Zn) in Punpun River water to assess its irrigational suitability, pollution sources hydrogeochemical processes. For this, physicochemical parameters river were analysed pre- post-monsoon seasons. The results showed that concentrations cations anions Ca2+ > Na+ Mg2+ K+ HCO3− SO42- Cl− NO3− PO43-, respectively, both However, metal concentration followed trend...

10.2166/ws.2024.096 article EN cc-by Water Science & Technology Water Supply 2024-04-30
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