Gaurav Sharma

Bio: Gaurav Sharma is an academic researcher from Shenzhen University. The author has contributed to research in topics: Medicine & Photocatalysis. The author has an hindex of 82, co-authored 1244 publications receiving 31482 citations. Previous affiliations of Gaurav Sharma include Northeastern University & D. E. Shaw & Co..

A rare presentation of lipoma on mandibular mucogingival junction

Abstract: Lipoma is the most common tumor of mesenchymal tissues of body, but its occurrence in oral cavity is infrequent. Buccal mucosa is the most common intraoral site of lipoma followed by tongue, floor of the mouth, and buccal vestibule. The involvement of mucogingival junction is rare. We present a unique case report of oral lipoma occurring on mandibular mucogingival junction with review of literature which has emphasis on differential diagnosis.

Ultrasound-guided fine needle aspiration of major salivary gland masses and adjacent lymph nodes.

Abstract: Ultrasound has an established role in the detection of masses in the major salivary glands and potentially malignant adjacent lymph nodes. Because there is overlap in their sonographic features, tissue diagnosis plays an important role in management. This review assesses ultrasound-guided fine needle aspiration biopsy as a diagnostic tool in the characterization of these lesions. The literature, and the authors' experience, suggests that ultrasound-guided fine needle aspiration is a safe and accurate technique, with definable implications for management, when performed in conjunction with cytopathologic expertise.

Sulphur Fractions in Acid Soil Continuously Fertilized with Chemical Fertilizers and Amendments under Maize-Wheat System

Abstract: A long-term fertilizer experiment on maize-wheat cropping system was initiated in 1972–1973 on a Typic Hapludalf at Research Farm of Palampur which comprised of ten treatments up to 1980–1981. The eleventh treatment, consisting of 100% NPK(−S) was introduced in kharif 1981. After twenty-six years of continuous cropping (kharif 1981 to rabi 2007–2008), the effect of different chemical fertilizers and amendments with or without sulphur (S) application was studied on different forms of S. Continuous application of chemical fertilizers and amendments improved all the S fractions in soil except where S was not applied. Integrated use of balanced dose of chemical fertilizer with farmyard manure (FYM) or lime sustained higher yields of maize in comparison to inorganic fertilizer alone. Accordingly, S uptake was also higher when FYM or lime was applied in conjunction with 100% NPK. Continuous application of urea (100% N) alone resulted in no yield. Significant positive relationship amongst the different forms of S in soil (0–15 cm) indicated the existence of equilibrium among themselves. All the S fractions exhibited significant positive relationship with yield and S uptake by maize.

I and i

Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

SPAdes, a new genome assembly algorithm and its applications to single-cell sequencing ( 7th Annual SFAF Meeting, 2012)

Abstract: The lion's share of bacteria in various environments cannot be cloned in the laboratory and thus cannot be sequenced using existing technologies. A major goal of single-cell genomics is to complement gene-centric metagenomic data with whole-genome assemblies of uncultivated organisms. Assembly of single-cell data is challenging because of highly non-uniform read coverage as well as elevated levels of sequencing errors and chimeric reads. We describe SPAdes, a new assembler for both single-cell and standard (multicell) assembly, and demonstrate that it improves on the recently released E+V-SC assembler (specialized for single-cell data) and on popular assemblers Velvet and SoapDeNovo (for multicell data). SPAdes generates single-cell assemblies, providing information about genomes of uncultivatable bacteria that vastly exceeds what may be obtained via traditional metagenomics studies. SPAdes is available online ( http://bioinf.spbau.ru/spades ). It is distributed as open source software.