Sumit Tewari
YOU?
Author Swipe
View article: Potential of Tagetes minuta L. populations as a high-yield crop for essential oil production in Garhwal Himalaya, India
Potential of Tagetes minuta L. populations as a high-yield crop for essential oil production in Garhwal Himalaya, India Open
Although a weed in many parts of the world, Tagetes minuta L. has become a crop of commercial importance. The current study assessed the morphological variation and oil yield of T. minuta from various populations in the Garhwal, Himalayan …
View article: Oral Disease Assessment among Adult Population in Rural Areas of Muradnagar Ghaziabad U.P. – A Cross-sectional Survey
Oral Disease Assessment among Adult Population in Rural Areas of Muradnagar Ghaziabad U.P. – A Cross-sectional Survey Open
Background: Oral diseases over the years have been fluctuating with changing lifestyles. Dental caries and periodontal diseases are having high prevalence all over the globe and in India. People residing in rural areas are generally not ab…
View article: Knowledge, Attitude, and Practice Regarding Oral Manifestations of COVID-19 among ASHA and Anganwadi Worker at Ghaziabad District – A Descriptive Study
Knowledge, Attitude, and Practice Regarding Oral Manifestations of COVID-19 among ASHA and Anganwadi Worker at Ghaziabad District – A Descriptive Study Open
Background: There is a scarcity of affordable and available oral health services in developing countries which worsen the disease condition that eventually escalates the cost of treatment and care. Therefore, community health worker (CHW) …
View article: The permanent magnet hypothesis: an intuitive approach to designing non-circular magnet arrays with high field homogeneity
The permanent magnet hypothesis: an intuitive approach to designing non-circular magnet arrays with high field homogeneity Open
Does the Halbach magnetization rotation rule that is used for designing circular magnet arrays for achieving the best homogeneity hold also for an elliptical or other non-circular cross-section? In this article, it is shown that a new nume…
View article: Millets for Food and Nutritional Security for Small and Marginal Farmers of North West India in the Context of Climate Change: A Review
Millets for Food and Nutritional Security for Small and Marginal Farmers of North West India in the Context of Climate Change: A Review Open
In India, 600 million people are dependent on the agricultural sector, the majority of them are small farmers with up to 2 hectares of land holding. Rain-fed is two thirds of the net sown area. About 40 million hectares of this land being …
View article: Dynamic bonding influenced by the proximity of adatoms to one atom high step edges
Dynamic bonding influenced by the proximity of adatoms to one atom high step edges Open
Low-temperature scanning tunneling microscopy is used here to study the dynamic bonding of gold atoms on surfaces under low coordination conditions. In the experiments, using an atomically sharp gold tip, a gold adatom is deposited onto a …
View article: Statistical signature of electrobreakdown in graphene nanojunctions
Statistical signature of electrobreakdown in graphene nanojunctions Open
Controlled electrobreakdown of graphene is important for the fabrication of stable nanometer-size tunnel gaps, large-scale graphene quantum dots, and nanoscale resistive switches, etc. However, owing to the complex thermal, electronic, and…
View article: Crop Production and Carbon Sequestration Potential of Grewia oppositifolia-Based Traditional Agroforestry Systems in Indian Himalayan Region
Crop Production and Carbon Sequestration Potential of Grewia oppositifolia-Based Traditional Agroforestry Systems in Indian Himalayan Region Open
Bhimal (Grewia oppositifolia) is the most important agroforestry tree species used for fodder, fuel and fiber in the Himalayan region. In the present study, G. oppositifolia-based traditional agroforestry systems were selected for the esti…
View article: Deep neural-network based optimization for the design of a multi-element surface magnet for MRI applications
Deep neural-network based optimization for the design of a multi-element surface magnet for MRI applications Open
We present a combination of a CNN-based encoder with an analytical forward map for solving inverse problems. We call it an encoder-analytic (EA) hybrid model. It does not require a dedicated training dataset and can train itself from the c…
View article: Diagnostic Accuracy of Chemiluminescence for Oral Potentially Malignant Disorders: A Systematic Review and Meta-analysis
Diagnostic Accuracy of Chemiluminescence for Oral Potentially Malignant Disorders: A Systematic Review and Meta-analysis Open
Introduction: Biopsy is the gold standard for Oral Potentially Malignant Disorders (OPMD) diagnosis. Chemiluminescence provide promising complementary alternative diagnostic adjunct for its simple non invasive collection and technique and …
View article: Single-electron transport in a molecular Hubbard dimer
Single-electron transport in a molecular Hubbard dimer Open
Many-body electron interactions are at the heart of chemistry and solid-state physics. Understanding these interactions is crucial for the development of molecular-scale quantum and nanoelectronic devices. Here, we investigate single-elect…
View article: Charge transport through extended molecular wires with strongly correlated electrons
Charge transport through extended molecular wires with strongly correlated electrons Open
Experimental studies of electron transport through an edge-fused porphyrin oligomer in a graphene junction are interpreted within a Hubbard dimer framework.
View article: Advances and challenges in single-molecule electron transport
Advances and challenges in single-molecule electron transport Open
Electronic transport properties of single-molecule junctions have been widely measured by several techniques, including mechanically controllable break junctions, electromigration break junctions, and by means of scanning tunneling microsc…
View article: Intuitive human interface to a scanning tunnelling microscope: observation of parity oscillations for a single atomic chain
Intuitive human interface to a scanning tunnelling microscope: observation of parity oscillations for a single atomic chain Open
A new way to control individual molecules and monoatomic chains is devised by preparing a human–machine augmented system in which the operator and the machine are connected by a real-time simulation. Here, a 3D motion control system is int…
View article: Identification of vibration modes in single-molecule junctions by strong inelastic signals in noise
Identification of vibration modes in single-molecule junctions by strong inelastic signals in noise Open
Inelastic electron noise spectroscopy technique combining a high-bias shot noise with vibration-induced two level fluctuations.
View article: Anomalous Nonlinear Shot Noise at High Voltage Bias
Anomalous Nonlinear Shot Noise at High Voltage Bias Open
Since the work of Walter Schottky, it is known that the shot-noise power for a completely uncorrelated set of electrons increases linearly with the time-averaged current. At zero temperature and in the absence of inelastic scattering, the …
View article: Towards Controlled Single-Molecule Manipulation Using “Real-Time” Molecular Dynamics Simulation: A GPU Implementation
Towards Controlled Single-Molecule Manipulation Using “Real-Time” Molecular Dynamics Simulation: A GPU Implementation Open
Molecular electronics saw its birth with the idea to build electronic circuitry with single molecules as individual components. Even though commercial applications are still modest, it has served an important part in the study of fundament…
View article: Molecular electronics: controlled manipulation, noise and graphene architecture
Molecular electronics: controlled manipulation, noise and graphene architecture Open
Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule. We could not divide them further without them …
View article: Robust procedure for creating and characterizing the atomic structure of scanning tunneling microscope tips
Robust procedure for creating and characterizing the atomic structure of scanning tunneling microscope tips Open
Scanning tunneling microscopes (STM) are used extensively for studying and manipulating matter at the atomic scale. In spite of the critical role of the STM tip, procedures for controlling the atomic-scale shape of STM tips have not been r…
View article: Fast and accurate shot noise measurements on atomic-size junctions in the MHz regime
Fast and accurate shot noise measurements on atomic-size junctions in the MHz regime Open
Shot noise measurements on atomic and molecular junctions provide rich information about the quantum transport properties of the junctions and on the inelastic scattering events taking place in the process. Dissipation at the nanoscale, a …
View article: Inhomogeneous broadening of the conductance histograms for molecular junctions
Inhomogeneous broadening of the conductance histograms for molecular junctions Open
We demonstrate that the notched-wire mechanically controllable break junction technique can be exploited for the study of single molecule junctions. We have developed a protocol for deposition of thiol-coupled molecules onto Au electrodes …