National Academy Science Letters

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Acronicta rumicis (Linnaeus, 1758), Emerging Pest of Apple Plantation in Kashmir Valley
National Academy Science Letters - Tập 42 - Trang 287-289 - 2018
Mudasir Ahmad Dar, Shahid Ali Akbar, Zakir Hussain Khan
The larvae of the moth Acronicta rumicis Linnaeus commonly known as Knot grass moth inflict considerable damage to new apple plantation in the Kashmir region. Immature stages of the pest defoliate apical buds and result in stunted growth of the plant. Seasonal occurrence and severity of the pest from Kashmir Valley is detailed.
Scale Invariance of Power Spectrum in Sediment Transport Mechanics
National Academy Science Letters - Tập 41 - Trang 81-83 - 2018
Varsha Shivpure, Anurag Sharma, Bimlesh Kumar
Flume experiments were carried over a curvilinear mobile sand bed and over a vegetated sand bed to scale the power spectra variation in the longitudinal velocity spectrum of turbulence flow. Instantaneous three dimensional velocities were sampled using an acoustic Doppler velocimeter; sequentially spectral analysis of the filtered velocities is consummated. Results depict that slope of power spect...... hiện toàn bộ
Taxonomic Analyses Suggest a New Record of Lygodium japonicum (Lygodiaceae) from Terai Regions of Uttar Pradesh, India
National Academy Science Letters - - 2019
D. C. Johari, Ajit Singh
A Prefatory Estimation of Diversity and Distribution of Moths in Nanda Devi Biosphere Reserve, Western Himalaya, India
National Academy Science Letters - Tập 40 - Trang 199-203 - 2017
Pritha Dey, V. P. Uniyal, Kailash Chandra
A pilot assessment of moth distribution and diversity was conducted in the buffer zone of Nanda Devi Biosphere Reserve, Western Himalaya, Uttarakhand, India. A total of 771 specimens were collected along an elevational gradient between 2000 and 3800 m across different forest types (temperate, sub-alpine, alpine scrublands) in Joshimath and Lata. Specimens were collected using light-trapping method...... hiện toàn bộ
Entanglement of the Non-Gaussian Two-Mode Quantum Vortex State
National Academy Science Letters - Tập 43 - Trang 77-80 - 2019
Vikram Singh, Devendra Kumar Mishra
We study the entanglement properties of a non-Gaussian two-mode vortex state that was theoretically proposed by Agarwal [New J Phys 13:073008 (2011)] by using the technique of photon subtraction from a two-mode squeezed state and detection of one photon by a single-photon detector. There are different conditions to quantify the entanglement of non-classical states. We compare the entanglement cond...... hiện toàn bộ
Content-Driven Answer Selection in Community Question Answering Using Clustering and Fuzzy Ranking
National Academy Science Letters - Tập 47 - Trang 51-54 - 2023
Manisha Vilas Khadse, Neeraj Sahu
The main task of question answering system is retrieval of high-quality answer; to achieve that, we are utilizing string similarity approach with clustering model to retrieve similar or related questions from the dataset. But ranking similar type of question answer will not solve the problem; we also considered expert ratings of the answer and treating it as a user satisfactory index or rating; to...... hiện toàn bộ
Synthesis, IR Spectral Studies and Antimicrobial Studies of Some Rare Earth Metal Complexes with Meso 2,3-Dimercaptosuccinic Acid
National Academy Science Letters - Tập 35 - Trang 249-252 - 2012
Richa Gupta, K. C. Gupta
Biologically active La(III), Sm(III), Gd(III) and Dy(III) complexes were synthesized by using meso 2,3-dimercaptosuccinic acid as ligand and were characterized by elemental analysis and spectral measurements. Coordination of the ligand atoms to the metal ion was deducted by IR spectral data. The in vitro antibacterial screening of the free acid and its metal complexes has been carried out against ...... hiện toàn bộ
A Computational Approach for Solution of Singular Boundary Value Problem with Applications in Human Physiology
National Academy Science Letters - Tập 35 - Trang 189-193 - 2012
Yogesh Gupta, Manoj Kumar
In this paper, a numerical algorithm is developed for the approximation of the solution of nonlinear two point second order singular boundary value problems arising in human physiology. Cubic Extended B-spline (EB-spline) is employed after modification of the problem at the point of singularity by L’ hospital rule. Resulting nonlinear system of equations is solved to get the solution. This is show...... hiện toàn bộ
Cadmium Accumulation, Growth Performance and Antioxidant Properties of Bacterial Consortium Inoculated Mentha arvensis L. Grown in Polluted Soil
National Academy Science Letters - - Trang 1-4 - 2024
Sandhyarani Mahanto, Indrajeet Kumar, Rajesh Kumar Sharma
In the present study, growth performance, antioxidant activities and cadmium (Cd) accumulation in eco-friendly bacterial consortium inoculated Mentha arvensis grown in Cd contaminated soils were evaluated. Eco-friendly bacterial consortium inoculation significantly enhanced growth, biomass and antioxidant efficacy of M. arvensis plants grown in contaminated soil, i.e. wastewater irrigated and Cd-s...... hiện toàn bộ
Digital Images for Plant Phenology Documentation
National Academy Science Letters - Tập 40 - Trang 135-139 - 2016
Sanjay Kr. Uniyal, Vikrant Jaryan, Rakesh D. Singh
Plant phenology is a key indicator of changing climatic conditions and, thus, automated documentation of phenology using cameras has recently been advocated. The present study, therefore, aimed at identifying phenological stages in Sapium sebiferum using digital images of a full calendar year. Red, Green and Blue channel information from these images was analyzed. Across the three channels (i.e. R...... hiện toàn bộ
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