7 results on '"Ranjana Sharma"'
Search Results
2. Analysis of uncertainty ratio in classified imagery using independent indicator entropy
- Author
-
Pradeep Garg, Ranjana Sharma, and R. K. Dwivedi
- Subjects
lcsh:QB275-343 ,Commercial software ,Pixel ,Contextual image classification ,Computer science ,business.industry ,lcsh:Geodesy ,Soft classification ,0211 other engineering and technologies ,Pattern recognition ,02 engineering and technology ,Single class ,010502 geochemistry & geophysics ,01 natural sciences ,ComputingMethodologies_PATTERNRECOGNITION ,Thematic map ,General Earth and Planetary Sciences ,Entropy (information theory) ,Satellite imagery ,Artificial intelligence ,business ,021101 geological & geomatics engineering ,0105 earth and related environmental sciences - Abstract
Image classification of satellite imagery interprets the thematic map to represent the spatial distribution of earth features. There are so many applications of Remote sensing image classification such as Resource utilization and environmental impact analysis etc. The overall process result depends on two main aspects (1) Every object have distinctive signature and feature of interest (2) The process can distinguish these features separately. Image classification is broadly classified in two ways (1) Hard classification and (2) Soft classification. In hard classification, pixels are classified in to a single class only and in soft classification, pixels can belong to one or more classes according to their membership values. In hard classification, data may lost because of the restriction being in a single class only. But in soft classification, this problem is resolved. But after resolving the problem, there is a need of accuracy assessment. There are many commercial software available in market but they are not providing accuracy assessment for soft classified images. So, in this study, a tool is designed to overcome such a problem. Keywords: Hard classification, Soft classification Fuzzy C-Means, Accuracy, Entropy more...
- Published
- 2020
- Full Text
- View/download PDF
Catalog
3. Polyphenolics and therapeutic insights in different tissues extract and fractions of Camellia sinensis (L.) Kuntze (Kangra Tea)
- Author
-
Dinesh Kumar, Ranjana Sharma, and Sarika Verma
- Subjects
chemistry.chemical_classification ,0303 health sciences ,ABTS ,030309 nutrition & dietetics ,DPPH ,Flavonoid ,Ethyl acetate ,food and beverages ,04 agricultural and veterinary sciences ,040401 food science ,Biochemistry ,High-performance liquid chromatography ,03 medical and health sciences ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Nutraceutical ,chemistry ,Polyphenol ,Camellia sinensis ,Food science ,Food Science - Abstract
Polyphenolic and therapeutic insights of tea tissues (coarse leaves, flowers, and unripe fruits) extract (75% ethanol), and fractions (Ethyl acetate, n-butanol, residual water) were studied. The total polyphenol, flavonoid content was estimated (46.25 ± 1.2–907 ± 1.7 and 8.0 ± 0.1–54.0 ± 1.3 mg/g, respectively) with predominance in leaves followed by fruits and flowers. The HPLC-based quantification of flavan-3-ols showed similar trends to polyphenols with dominance in LEA, FTEA, and FLEA (731.32 ± 6.41, 531.2 ± 7.41 & 214.1 ± 5.75, mg/g respectively). The antioxidant potential using DPPH, ABTS, and RP assays revealed the maximum activity in leaves, while FIC showed antagonistic results. Further, inhibition of bacteria, fungus, α-glucosidase, and α-amylase indicated broad scope for underutilized tea parts. The leaves and fruits showed maximum α-glucosidase inhibition (87%), while α-amylase inhibition was in the range of 45.2–98.2%. The variability in polyphenols and therapeutic competence provided a different perspective for their utilization in nutraceutical and pharmaceutical sectors. more...
- Published
- 2021
- Full Text
- View/download PDF
4. Effect of supplementation of beef steer diets with oil containing n6 and n3 fatty acids and 48h feed withdrawal treatments on plasma hormone profiles and adipose tissue cellularity
- Author
-
Ranjana Sharma, Michael E. R. Dugan, Karen S Schwartzkopf-Genswein, T. Entz, R.O. Lemieux, M. L. He, M.V. Dodson, Priya S. Mir, Erasmus Okine, G. Travis, and F.A. Brown
- Subjects
medicine.medical_specialty ,food.ingredient ,General Veterinary ,Chemistry ,Leptin ,Insulin ,medicine.medical_treatment ,Sunflower oil ,Adipose tissue ,Weanling ,chemistry.chemical_compound ,Animal science ,Endocrinology ,food ,Internal medicine ,Adipocyte ,medicine ,Weaning ,Animal Science and Zoology ,Hormone - Abstract
A 2×3 factorial experiment was conducted with 72 weanling, crossbred steers (with Hereford, Angus and Charolais genetics and initial BW of 280.5±5.8 kg) with the objective of determining the effect of dietary and feed withdrawal (FW) treatments on plasma concentrations of glucose, insulin, growth hormone (GH) and leptin and on intramuscular and subcutaneous (SQ) adipose cellularity. Supplementation was a 50/50 mixture of flax and sunflower oil at 5% of diet (OIL) versus a control (CON; without oil) diet, which were the dietary treatments and were applied to steers experiencing three feed withdrawal (FW) treatments. The FW treatments were no FW, a single 48 h FW (FW×1) before initiation of fattening at one year of age or 48 h FW at 8 week intervals from weaning to initiation of fattening (FW×4). Plasma was harvested from jugular blood collected from all steers after each FW and samples of pars costalis diaphgramatis (PCD) muscle and SQ from the brisket were collected from the steers at slaughter for adipocyte enumeration. Cell number was determined by computerized image enumeration and electronically by a particle counter. Plasma concentrations of glucose and hormones responded to age of steers at the time of sample procurement ( P =0.001–0.053), and a diet×FW interaction ( P =0.015) was observed for insulin, because steers fed the OIL diet in the FW×4 treatment had lower insulin concentrations than of those in the other FW treatments. Concentrations of growth hormone (GH) decreased ( P =0.028) due to FW from 7.17±1.02 ng/mL in steers in the no FW treatment to 5.04±0.78 and 5.46±1.22 ng/mL for steers in FW×1 and FW×4 treatments, respectively. Leptin concentrations were unaffected by diet or FW treatment. The relationship for cells enumerated by the particle counter versus the Motic computer program was significant ( P =0.01) for both PCD and SQ fat with r 2 values of 0.55 and 0.24, respectively, for total cells of diameters from 30 to 300 μm. Number of adipocytes with diameters from 80 to 140 μm in the PCD were greater ( P =0.038 and 0.028) in OIL than in CON fed steers. The percent of total number of cells in the 30–60 μm diameter range in the PCD were greater in steers in FW×1 and FW×4 than in no FW treatments when counted by either method. Provision of dietary oil and FW treatments had no effect on plasma metabolites and may be the reason for the absence of a response in total adipocyte numbers due to FW. more...
- Published
- 2012
- Full Text
- View/download PDF
5. Effect of supplementation of beef steer diets with oil containing n6 and n3 fatty acids and 48h feed withdrawal treatments on animal productivity, carcass characteristics and fatty acid composition
- Author
-
Priya S. Mir, T. Entz, Michael E. R. Dugan, K.A. Schwartzkopf-Genswein, David C. Rolland, M.V. Dodson, Erasmus Okine, Ranjana Sharma, M. L. He, and G. Travis
- Subjects
chemistry.chemical_classification ,General Veterinary ,Conjugated linoleic acid ,Marbled meat ,Weanling ,Fatty acid ,Biology ,chemistry.chemical_compound ,Animal science ,chemistry ,Biochemistry ,Adipocyte ,Hay ,Weaning ,Animal Science and Zoology ,Dry matter - Abstract
A 2 × 3 factorial experiment was conducted with 72 weanling (about 180 d old), crossbred steers (with Hereford, Angus and Charolais genetics and initial body weight of 280.5 ± 5.8 kg) to determine the effect of dietary supplementation with a 50/50 mixture of flax and sunflower oils at 5% of diet, to steers in three feed withdrawal (FW) treatments on production factors, carcass characteristics, adipocyte marker; peroxisome proliferator activated receptor γ (PPARγ) RNA expression and fatty acid composition of muscle ( Pars costalis diaphragmatis ; PCD) and subcutaneous fat (SQ from brisket). The FW treatments were no FW, a single 48 h FW (FW × 1) before start of fattening or 48 h FW at 8 week intervals from weaning to start of fattening (FW × 4). Individually penned steers were fed mixed hay and rolled barley diets containing no oil (Control; CON) or 5% oil (OIL) through growing, transition and fattening phases. Interaction of dietary oil and FW treatments did not affect any of the production factors. Decreased ( P = 0.008) dry matter intake (DMI) of the OIL diet was noted through the growing period; thus decreasing ( P = 0.019) total DMI by 112 kg/hd for the experiment and improved gain per unit feed ( P = 0.019) for the growing period. The FW × 1 treatment reduced ( P = 0.004) average daily gain (ADG) through the transition period, but ADG tended to improve ( P = 0.081) during fattening and steers in FW treatments gained 1.38 ± 0.07 versus 1.25 ± 0.06 kg/d for those in the no FW treatment. Differences due to dietary oil or the FW treatments were not observed for any of the carcass characteristics. A diet × FW interaction ( P = 0.001) was observed for PPARγ expression in the PCD and SQ. Adipocyte marker expression was greater in PCD of steers in the FW × 4 treatment with values for OIL fed steers being greater than of CON fed steers. Feeding the OIL diet increased ( P = 0.001) the weight percent of C18:1t10, C18:1t11, conjugated linoleic acid and n3 fatty acids by 178, 152, 66 and 32%, respectively. The n6:n3 ratio in PCD was decreased in OIL fed steers. Results indicate that repeated FW can enhance adipocyte marker expression in muscle thus improving the potential to increase marbling fat in steers, while oil, comprised of n3 and n6 fatty acids, increased biologically active fatty acids and decreased n6:n3 fatty acid ratios of tissues, without affecting productivity or carcass characteristics of the steers. more...
- Published
- 2011
- Full Text
- View/download PDF
6. A review of the detection and fate of novel plant molecules derived from biotechnology in livestock production
- Author
-
Tim A. McAllister, Erasmus Okine, Karen Aulrich, Ranjana Sharma, Tim Reuter, Walter T. Dixon, and Trevor W. Alexander
- Subjects
business.industry ,Transgene ,Genetically modified crops ,Biology ,law.invention ,Genetically modified organism ,Biotechnology ,Crop ,Real-time polymerase chain reaction ,law ,Recombinant DNA ,Animal Science and Zoology ,Livestock ,business ,Gene - Abstract
Since the commercialization of the first genetically modified (GM) crop in 1996, the amount of arable land dedicated to the production of GM feed has increased significantly. Despite widespread adoption of GM foods and feeds, public perception of their safety remains mixed. To provide consumers the opportunity for choice, some countries have adopted mandatory labeling of GM foods and feeds when their adventitious presence exceeds a defined threshold percentage. Methods for detecting and quantifying GM plants in feeds include protein- and DNA-based assays, but their sensitivity may be influenced by the techniques used in feed processing. Interest in the consumption of transgenic protein and DNA has prompted investigations of their fate within the gastrointestinal tract of livestock and the potential to which transgenes or their products may be incorporated into tissues. Transgenic protein has not been detected in any animal tissues or products. Fragments of DNA from endogenous, high-copy number chloroplast genes from plants have been detected in poultry, pig and ruminant tissues. Low-copy endogenous and transgenic DNA in animal tissues have been detected but to a lesser extent than high-copy genes. Current research suggests that the passage of dietary DNA fragments across the intestinal wall is a natural physiological event, the likelihood of which is dependent on their concentration in the feed. To date, the transgenic traits approved for expression in crops used as feeds have not posed a safety concern for livestock. more...
- Published
- 2007
- Full Text
- View/download PDF
7. A novel role for calcium and membrane-binding proteins in regulation of respiratory burst in Enrlich ascites tumour cells
- Author
-
Ranjana Sharma and Bharathi P. Salimath
- Subjects
medicine.medical_specialty ,Annexins ,Cell ,Phosphatase ,chemistry.chemical_element ,Calcium ,Biology ,Dexamethasone ,Mice ,Internal medicine ,Phosphoprotein Phosphatases ,Tumor Cells, Cultured ,medicine ,Animals ,Phosphorylation ,Carcinoma, Ehrlich Tumor ,Protein kinase C ,Respiratory Burst ,Superoxide Dismutase ,Cell Biology ,Neoplasm Proteins ,Respiratory burst ,Cytosol ,medicine.anatomical_structure ,Endocrinology ,chemistry ,Tetradecanoylphorbol Acetate ,Protein Kinases ,Protein Processing, Post-Translational ,medicine.drug - Abstract
The effect of the signals, dexamethasone and phorbol-ester (TPA) and their interplay on the respiratory burst in Enrlich ascites tumour (EAT) cells and the effect this interplay has on the phosphorylation state and thus function of EAT cell cytosolic calcium and membrane-binding proteins (CaMBPs) was studied. Dexamethasone (1 mg/kg body weight) inhibited basal and TPA-activated EAT cell respiratory burst. CaMBPs isolated from EAT cells under the influence of either or both signals by a membrane-affinity binding technique showed similar profiles on SDS-PAGE. Autoradiography showed that only an 11,000 Mr protein is subject to phosphorylation and that dexamethasone brings down the extent of phosphorylation of CaMBPs is isolated from control and TPA-treated EAT cells. Phosphorylated CaMBPs from control and TPA-treated cells could activate the respiratory burst in Triton-permeabilized EAT cells in a dose-dependent manner (four- and six-fold activations, respectively, at 16 μg protein concentration) when included in the assay, whereas dephosphorylated CaMBPs from EAT cells from mice treated with dexamethasone alone, or later activated with TPA, could not. A phosphatase activity was detected in EAT cell cytosol receiving the dual-signal, dexamethasone and TPA. more...
- Published
- 1993
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.