User profiles for Ranjana Singh

Ranjan Singh

- Verified email at ntu.edu.sg - Cited by 22592

Ranjana Singh

- Verified email at kgmcindia.edu - Cited by 1512

Dr. Ranjan Singh

- Verified email at bbau.ac.in - Cited by 1192

[HTML][HTML] Utilization of maternal health services and its determinants: a cross-sectional study among women in rural Uttar Pradesh, India

R Singh, SB Neogi, A Hazra, L Irani, J Ruducha… - Journal of health …, 2019 - Springer
Background Proper utilization of antenatal and postnatal care services plays an important
role in reducing the maternal mortality ratio and infant mortality rate. This paper assesses the …

Hypoxia response in asthma: differential modulation on inflammation and epithelial injury

…, B Pattnaik, S Aggarwal, R Singh, S Singh… - American journal of …, 2012 - atsjournals.org
Oxygen-sensing prolyl-hydroxylase (PHD)-2 negatively regulates hypoxia-inducible factor (HIF)1-α
and suppresses the hypoxic response. Hypoxia signaling is thought to be …

High-Q lattice mode matched structural resonances in terahertz metasurfaces

N Xu, R Singh, W Zhang - Applied Physics Letters, 2016 - pubs.aip.org
The quality (Q) factor of metamaterial resonances is limited by the radiative and non-radiative
losses. At terahertz frequencies, the dominant loss channel is radiative in nature since the …

[HTML][HTML] Curcumin quantum dots mediated degradation of bacterial biofilms

AK Singh, P Prakash, R Singh, N Nandy… - Frontiers in …, 2017 - frontiersin.org
Bacterial biofilm has been reported to be associated with more than 80% of bacterial infections.
Curcumin, a hydrophobic polyphenol compound, has anti-quorum sensing activity apart …

Circadian periodicity of plasma lipid peroxides and anti-oxidant enzymes in pulmonary tuberculosis

R Singh, RK Singh, AK Tripathi, N Gupta… - Indian Journal of Clinical …, 2004 - Springer
The circadian periodicity of plasma lipid peroxide levels and activities of superoxide dismutase
(SOD), catalase (CAT) and glutathione peroxidase (GPx) were studied in 50 clinically, …

QPRTase modified N-doped carbon quantum dots: a fluorescent bioprobe for selective detection of neurotoxin quinolinic acid in human serum

R Singh, S Kashayap, V Singh, AM Kayastha… - Biosensors and …, 2018 - Elsevier
Highly fluorescent nitrogen doped carbon quantum dots (NCQDs) were synthesized using
microwave assisted green method. It was characterized by Transmission Electron Microscopy …

[HTML][HTML] Active control of electromagnetically induced transparency analogue in terahertz metamaterials

J Gu, R Singh, X Liu, X Zhang, Y Ma, S Zhang… - Nature …, 2012 - nature.com
Recently reported metamaterial analogues of electromagnetically induced transparency
enable a unique route to endow classical optical structures with aspects of quantum optical …

[HTML][HTML] Microbial lipases and their industrial applications: a comprehensive review

P Chandra, Enespa, R Singh, PK Arora - Microbial cell factories, 2020 - Springer
Lipases are very versatile enzymes, and produced the attention of the several industrial
processes. Lipase can be achieved from several sources, animal, vegetable, and microbiological…

Thin-film sensing with planar terahertz metamaterials: sensitivity and limitations

JF O'Hara, R Singh, I Brener, E Smirnova, J Han… - Optics …, 2008 - opg.optica.org
The limiting effects of varying the thickness of a dielectric overlayer on planar double split-ring
resonator (SRR) arrays are studied by terahertz time-domain spectroscopy. Uniform …

Ultrasensitive terahertz sensing with high-Q Fano resonances in metasurfaces

R Singh, W Cao, I Al-Naib, L Cong… - Applied Physics …, 2014 - pubs.aip.org
High quality factor resonances are extremely promising for designing ultra-sensitive refractive
index label-free sensors, since it allows intense interaction between electromagnetic …