A5021953376- Chromosomal and Genetic Variations
- Plant Taxonomy and Phylogenetics
- Plant Reproductive Biology
- Plant tissue culture and regeneration
- Genetic diversity and population structure
- Plant Pathogens and Resistance
- Botanical Research and Chemistry
- Aerodynamics and Acoustics in Jet Flows
- Ethnobotanical and Medicinal Plants Studies
- Acoustic Wave Phenomena Research
- Plant Diversity and Evolution
- Plant Genetic and Mutation Studies
- Plant Disease Resistance and Genetics
- Plant Ecology and Taxonomy Studies
- Plant Pathogens and Fungal Diseases
- Plant Toxicity and Pharmacological Properties
- Underwater Acoustics Research
- Genomics and Phylogenetic Studies
- Nanofluid Flow and Heat Transfer
- Flow Measurement and Analysis
- Heat Transfer Mechanisms
- Fluid Dynamics and Turbulent Flows
- Rangeland Management and Livestock Ecology
- Ecology and Vegetation Dynamics Studies
- Plant nutrient uptake and metabolism
Punjabi University
2015-2024
Medanta The Medicity
2024
Institute of Technology Management
2016-2023
Botanical Survey of India
2018
Shree Guru Gobind Singh Tricentenary University
2016
Indian Institute of Technology Roorkee
2012
Max Planck Institute for Software Systems
2010
Division of Human Resource Management
1990
American Institute of Aeronautics and Astronautics
1973-1976
Massachusetts Institute of Technology
1973-1976
Abstract This research work describes the laminar flow of a 3-D Maxwell nanofluid Electro Magnetohydrodynamic (EMHD) over an exponentially extending surface entrenched by cobalt ferrite nanomaterial. Flow is promoted thermal and solute stratification as well non-Fourier heat flux perception. study also considers effects diffusion-thermo thermo-diffusion. An appropriate transformation applied to discretize system partial differential equations into nonlinear ordinary equations. The...
Present cytological investigations from the cold desert regions of Lahaul-Spiti and Kinnaur (India) record first ever tetraploid (2n=32) chromosome count cytomixis in Clematis orientalis L. var. acutifolia Hook. f. et Thoms. The phenomenon (9.33-29.80 %) involving chromatin transfer among 2-3 proximate pollen mother cells (PMCs) during male meiosis occurs through narrow broad cytoplasmic channels early prophase to tetrad stage. However, frequency its occurrence later meiotic stages is rather...
Concurrent programming is increasingly important for achieving performance gains in the multi-core era, but it also a difficult and error-prone task. Concurrency bugs are particularly to avoid diagnose, therefore order improve methods handling such bugs, we need better understanding of their characteristics. In this paper present study concurrency MySQL, widely used database server. While previous studies real-world exist, they have centered attention on causes these bugs. provide...
Results of steady-state and pulse measurements upstream downstream attenuation sound in turbulent pipe flow are presented compared with calculated values obtained from a simple model which the is treated as quasistatic perturbation steady pipe.
Pangi Valley is the interior most tribal area in Himachal Pradesh of Northwest Himalaya. An ethnobotanical investigation attempted to highlight traditional knowledge medicinal plants being used by tribes Valley. Various localities visited valley 2-3 times a year and information was collected through interviews with elderly people, women, shepherds, local vaids during May 2009 September 2013. This paper documented 67 plant species from 59 genera 36 families along their botanical name, family...
The effect of flow on the acoustic resonances an open-ended, hard-walled duct is analyzed. produces losses both in interior and at ends. Unless very long, typically 100 times diameter, ends dominate. At Mach numbers excess 0.4 are so large that axial almost completely suppressed. plane-wave Green’s function for with expressed terms (experimentally determined) pressure reflection coefficients duct, dependence complex eigenfrequencies obtained. Some observations concerning noise produced by...
Meiotic abnormalities lead to morphological and genetic variations which caused not only evolution but also intraspecific reproductive barriers. During present study of detailed meiotic course in dicotyledonous plants sampled from Indian cold deserts, various have been detected. For this, the plant materials fixed Carnoy's fixative studied by standard squash method 1% acetocarmine.Meiotic presently detected 71 species include multiple associations diploids (Achillea millefolium L.),...
The influence of radiation, convective heating, second-order velocity slip condition, and activating energy on the magnetohydrodynamic (MHD) Carreau nanofluid heat/mass transfer are depicted in this study. A mathematical model is carried out with effects thermophoresis Brownian motion. governing equations transformed into a system nonlinear coupled differential equations. Solutions derived by Matlab BVP4c solver. Efficiency solver verified comparison previous literature. Moreover, impacts...
We develop an optimization-based approach for a point-to-point route planning problem that arises in many large scale delivery systems (for example, less-than-truckload freight, rail, mail and package delivery, communications). In these settings, firm which must ship goods between origin destination pairs on network needs to specify each origin–destination pair so as minimize transportation costs and/or transit times. Typically, the cost structure is very complicated. The discussed this...
Caltha palustris L. (Ranunculaceae), popularly known as Kingcup or Marsh Marigold is a polymorphic species distributed in the cold temperate regions of western Himalayas. The exhibits considerable amount intraspecific morphological and chromosomal diversity involving polyploidy, aneuploidy hybridization. Besides, some individuals also show presence B-chromosomes. Presently three populations from desert region Kullu Lahaul-Spiti districts Himachal Pradesh have been studied for detailed...
An experimental demonstration of the influence fluid motion in a duct on sound pressure field radiated upstream and downstream directions from stationary source is presented. The measured ratio between amplitudes presented as function flow Mach number range M = 0–0.5. results are discussed light mathematical analysis problem.
Present study reveals the occurrence of inter PMC transfer chromatin material in PMCs 'Seabuckthorn' (Hippophae rhamnoides L.). The migration is observed from early prophase up to telophase-I. In majority cases 2–4 are involved transfer, however rare occasions occurs groups. be partial as well complete, which resulted into formation anucleated, hypo and hyperploid PMCs. cases, direct fusion between two at AI lead a polyploid with 36 chromosomes. As consequence cytomixis various other...
Abstract Lindelofia longiflora (Royle ex Benth.) Baill. var. falconeri (Cl.) Brand (Family: Boraginaceae) is investigated cytologically ( n = 12) for the first time from cold deserts of Pangi Valley, Chamba District (Himachal Pradesh) in India. We report formation syncytes and 2 pollen grains species. During meiosis, majority mother cells (PMCs) exhibited 12 bivalents, equal segregation chromosomes during anaphases, regular tetrads, normal‐sized grain formation. Occasionally, two proximate...
In this study, we examined the chromosome number, detailed male meiosis, microsporogenesis, pollen fertility and morphological features distribution of 2× 4× cytotypes Ranunculus hirtellus Royle, 1834. The majority populations scored now from cold regions northwest Himalayas showed tetraploid (n=16) meiotic count one studied Manimahesh hills existed at diploid level (n=8). individuals cytotype exhibited perfectly normal course resulting in 100% grains uniform sizes. On other hand, plants all...
Detailed cytological investigations performed in Anemone tetrasepala Royle from the Pangi Valley revealed presence of various irregularities (spindle irregularities, chromatin transfer, stickiness, and nonsynchronous condensation material) for first time species that existed at diploid level (2n = 14). Spindle resulted dyads, triads, polyads, micronuclei sporads during microsporogenesis variable sized pollen grains reduced fertility (85.38%). Direct fusion among proximate meiocytes formation...
Meiotic studies carried out in the diploid (2n=2x=16) Clematis flammula L. revealed occurrence of cytomixis. Chromatin transfer is observed from early prophase up to tetrad stage. Although percentage PMCs involved chromatin low, but it definitely impairs meiotic process. Cytomixis induces various other associated abnormalities which are at different stages. These include; stickiness, laggards and bridges anaphases telophases, spindle abnormality, micronuclei telophases stages,...
Chromosomal studies on Clematis montana from Dalhousie hills, Himachal Pradesh, India have led to the identification of an accession that exhibited aberrant male meiosis, pollen sterility and heterogeneous sized fertile grains. The accession, which exists at diploid level (n=8), depicts phenomenon cytomixis involving chromatin transfer among proximate meiocytes (PMs). in PMCs has also caused various meiotic irregularities like stickiness, interbivalent connections, unorganized pycnotic...
Background: Indian medical education system is one of the largest in world. Medical colleges India have rapidly proliferated past 25 years, doubling since 1980 for a current total 422, each associated with university, producing 52565 MBBS doctors year. facing problems and challenges quality countries. Article an attempt to identify analyze India.Methods: Cross-sectional data collected over period three months from September 2015 December various sources including regarding been analysed...
Presently, detailed cytological investigations have been carried out in 4 accessions of Anemone rivularis Buch.-Ham. ex DC, collected from the cold deserts Lahaul-Spiti, Kinnaur, and Kullu districts Himachal Pradesh (India). The phenomenon cytomixis involving chromatin transfer among proximate pollen mother cells (PMCs) during male meiosis is recorded for first time species. effects on grains also discussed. In spite existence intraspecific aneuploid polyploid cytotypes (2n=14, 16, 24, 28,...