120 research outputs found
Effect of Post Harvest Treatment on Biochemical Composition and Organoleptic Quality in Kagzi Lime Fruit during Storage
The present investigation was carried out to test the efficacy of various post harvest treatments using gamma irradiation, growth retardants and coatings on quality and sensory parameters of Kagzi lime under ambient conditions. Among various treatments, pure coconut oil coating was very effective as higher TSS, acidity, vitamin C, juice content, flavour, appearance and taste were retained during storage. Pure coconut oil coated fruits maintained natural light-green colour upto 24 days of storage, which was acceptable to consumers
Manganese Dissolution in alkaline medium with and without concurrent oxygen evolution in LiMnO
Manganese dissolution during the oxygen evolution reaction (OER) has been a
persistent challenge that impedes the practical implementation of Mn-based
electrocatalysts including the LiMnO system in aqueous alkaline
electrolyte. The investigated LiMnO particles exhibit two distinct Mn
dissolution processes; one independent of OER and the other associated to OER.
Combining the bulk sensitive X-ray absorption spectroscopy, surface sensitive
X-ray photoelectron spectroscopy and electrochemical detection of Mn
dissolution using rotating ring-disk electrode, we explore the less understood
Mn dissolution mechanism during OER. We correlate near-surface oxidation with
the charge attributed to dissolved Mn, which demonstrates increasing Mn
dissolution with the formation of surface Mn4+ species under anodic potential.
The observed stronger dissolution during the OER is attributed to the formation
of additional Mn from Mn during OER. We show that control over
the amount of Mn4+ in LiMn2O before the onset of the OER can partially
mitigate the OER-triggered dissolution. Overall, our atomistic insights into
the Mn dissolution processes are crucial for knowledge-guided mitigation of
electrocatalyst degradation, which can be broadly extended to manganese-based
oxide systems
Anti-Hyperglycemic And Anti-Hyperlipidemic Potential Of A Polyherbal Preparation “Diabegon” In Metabolic Syndrome Subject With Type 2 Diabetes
Background: In the present study, “Diabegon” a poly-herbal preparation, with hypoglycemic activity, was evaluated for its preventive effect inmetabolic syndrome subjects with type 2 diabetes and also to reveal its side effects, on liver and kidney.Materials and Methods: Type 2 diabetic subjects with metabolic syndrome (N=58) were categorized on the basis of age and fasting blood glucose.The grouping was as follows: Group I (35-50 yrs), Group II (51-65 yrs), Group III >65 yrs, Group IV FBS<145.9, Group V FBS>145. Each group wasadministered 4 gm of diabegon daily. Blood glucose levels, lipid profile, liver and kidney function of the subjects were regularly monitored within 3months of interval to 18 months.Results: The reduction in fasting blood glucose level ranged from 12.3% (P<0.05) to 42% (P<0.001) after 18 month of therapy whereas in postprandial blood glucose, the decrease ranged from 28% (P<0.05) to 32% (P<0.05) after 18 month of therapy. Overall reductions in the individual parameters of the metabolic syndrome subjects were significantly higher in Group I. Cholesterol level decreased from 11% to 27.2% (P<0.001), triglyceride levels decreased from 24% to 55%, VLDL and LDL levels reduced by 60% & 54% respectively after 18 months of therapy. The HDL-C level increased in all groups. Moreover, diabegon administration for 1.5 years exhibited no alteration in liver and kidney function tests, which indicate its non-toxicity.Conclusion: Our study suggests that diabegon could be included as a preventive treatment in metabolic syndrome subjects with type 2 diabetesespecially for long term treatment as it efficiently shows anti-hyperglycemic and anti-lipidemic effects with no adverse impacts on the liver and kidney.Key words: Metabolic syndrome, Type 2 diabetes, Diabegon, Polyherbal preparation
Effect of Annealing on Magnetic and Structural Properties of FeNi Thin Films
In this work, we have deposited FeNi (60 nm) film on Si (111) substrate using electron beam evaporation technique. XRD measurements carried out on thin film with annealing the sample from 100 to 400 °C show increase in intensity of the FeNi (111) diffraction peak. The particle size increases from 19 nm (as deposited sample) to 27 nm (400 °C) with annealing. The magnetization measurements carried out using MOKE technique show enhancement in coercivity with annealing. The overall results are attributed in terms of annealing induced structural change which modify the magnetic properties
Multi-band Optical Variability of the TeV Blazar PG 1553+113 in 2019
We report the flux and spectral variability of PG 1553+113 on intra-night
(IDV) to short-term timescales using BVRI data collected over 91 nights from 28
February to 8 November 2019 employing ten optical telescopes: three in
Bulgaria, two each in India and Serbia, and one each in Greece, Georgia, and
Latvia. We monitored the blazar quasi-simultaneously for 16 nights in the V and
R bands and 8 nights in the V, R, I bands and examined the light curves (LCs)
for intra-day flux and colour variations using two powerful tests: the
power-enhanced F-test and the nested ANOVA test. The source was found to be
significantly (> 99%) variable in 4 nights out of 27 in R-band, 1 out of 16 in
V-band, and 1 out of 6 nights in I-band. No temporal variations in the colours
were observed on IDV timescale. During the course of these observations the
total variation in R-band was 0.89 mag observed. We also investigated the
spectral energy distribution (SED) using B, V, R, and I band data. We found
optical spectral indices in the range of 0.878+-0.029 to 1.106+-0.065 by
fitting a power law to these SEDs of PG 1553+113. We found that the source
follows a bluer-when-brighter trend on IDV timescales. We discuss possible
physical causes of the observed spectral variability.Comment: 13 pages,8 figures, 7 tables, Accepted for publication in MNRA
c-Kit-Mediated Functional Positioning of Stem Cells to Their Niches Is Essential for Maintenance and Regeneration of Adult Hematopoiesis
The mechanism by which hematopoietic stem and progenitor cells (HSPCs) through interaction with their niches maintain and reconstitute adult hematopoietic cells is unknown. To functionally and genetically track localization of HSPCs with their niches, we employed novel mutant loxPs, lox66 and lox71 and Cre-recombinase technology to conditionally delete c-Kit in adult mice, while simultaneously enabling GFP expression in the c-Kit-deficient cells. Conditional deletion of c-Kit resulted in hematopoietic failure and splenic atrophy both at steady state and after marrow ablation leading to the demise of the treated adult mice. Within the marrow, the c-Kit-expressing GFP+ cells were positioned to Kit ligand (KL)-expressing niche cells. This c-Kit-mediated cellular adhesion was essential for long-term maintenance and expansion of HSPCs. These results lay the foundation for delivering KL within specific niches to maintain and restore hematopoiesis
Nilotinib first-line therapy in patients with Philadelphia chromosome-negative/BCR-ABL-positive chronic myeloid leukemia in chronic phase: ENEST1st sub-analysis
- …