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- 저자 : Keshri, R.C. (검색결과 8 건)
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Keshri Ankit Kumar 한국사회복지학회 2021 Asian Social Work and Policy Review Vol.15 No.3
Transitioning from institutional care to independent living is a complex process for orphan care leavers. Most of them struggle to adapt to independent living for longer periods after leaving institutional care. This study describes those challenges in the Indian context. Qualitative interviews were conducted with 13 orphan care leavers to explore their experiences and perceptions of independent living. Findings showed that orphan care leavers perceive independent living as both opportunity and challenge. Some orphan care leavers felt that after leaving institutional care, they have lived through difficulties at their workplace: while finding accommodation, in household management, and establishing their official identity. However, data suggest that even in adverse circumstances, these orphan young adults have kept hope and have positive aspirations about their lives with a very strong informal network of care leavers as their main source of support. But overall, it was confirmed that social exclusion based on personal and care background is persistent among the orphan care leavers. Therefore, for promoting a better independent living experience initiating changes in the approach to work with care leavers is recommended.
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Effect of Enrobing and Adding Antioxidants on the Quality of Pork Patties
Biswas, A.K.,Keshri, R.C.,Kumar, Sunil Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.9
The effect of applying edible coating and addition of antioxidants (butylated hydroxyanisole (BHA) plus butylated hydroxytoluene (BHT) in a 1:1 ratio) on pork patties were investigated prior to achieve desired physico-chemical, microbiological and sensory qualities. For this, five treatments were conducted as (i) control (neither coated nor antioxidants treated); (ii) coated without antioxidants treated; (iii) coated and antioxidants added in the batter mix only (100 ppm); (iv) coated and antioxidants added in meat mix (100 ppm) only; and (v) coated and antioxidants added both in the batter mix (50 ppm) and the meat mix (50 ppm). Addition of antioxidants both in the batter mix and the meat mix significantly (p<0.05) reduced the microbial loads and thiobarbituric acid (TBA) values. The TBA values significantly (p<0.05) increased up to day 14 and then progressively increased with the advancement of each interval of storage days up to 28 days. Total plate count significantly (p<0.05) increased with the increase in storage days.Coliform and Staphylococcus aureus were absent throughout the storage days in all samples. Staphylococcus aureus however, were present in the control group at day 14 and in enrobed (coated) patties (without antioxidants treated) at 28th day. Addition of antioxidants to batter mix and meat mix did not substantially enhance bacteriostatic activity. Application of coatings and antioxidants retarded the loss of firmness, flavor, changes in appearance and color, and also other sensory attributes. Control patties were better with respect to microbial quality and TBA values but had poorer sensory quality than coated patties.
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Gopalakrishnan Menon,Kalpana Mody,Jitendra Keshri 한국생물공학회 2010 Biotechnology and Bioprocess Engineering Vol.15 No.6
A haloalkalitolerant xylanase-producing Bacillus pumilus strain, GESF1 was isolated from an experimental salt farm of CSMCRI. Birch wood xylan and xylose induced maximum xylanase production with considerable activity seen in wheat straw and no activity at all with caboxymethyl cellulose (CMC). A three step purification yielded 21.21-fold purification with a specific activity of 112.42 U/mg protein (unit expressed as μmole of xylose released per min). Xylanase produced showed an optimum activity at pH 8.0, with approximately 50 and 30% relative activity at a pH 6.0 and 10.0, respectively. The temperature optimum was 40°C and kinetic properties such as Km and Vmax were 5.3 mg/mL and 0.42 μmol/min/mL (6593.4μmol/min/mg protein). Xylanase activity (160 ~ 120%)was considerably enhanced in 2.5 to 7.5% NaCl with 87and 73% retention of activity in 10 and 15% of NaCl. Enzyme activity was enhanced by Ca2+, Mn2+, Mg2+, and Na+ but strongly inhibited by heavy metals such as Hg2+,Fe3+, Cu2+, Cd2+, and Zn2+. Organic reagents such as β-Mercaptoethanol enhanced xylanase activity whereas EDTA strongly inhibited its activity. Xylanase, purified from the Bacillus pumilus strain, GESF1 could have potential biotechnological applications.
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Creating Backup Management Resources for Spine Care during the Coronavirus Disease 2019 Pandemic
Yadav Sandeep Kumar,Kar Bikram Keshri,Banta Aditya,Kumar Awkash 대한척추외과학회 2020 Asian Spine Journal Vol.14 No.3
During this unprecedented time of the coronavirus disease 2019 (COVID 19) pandemic, most countries are struggling to optimize their healthcare resources. Although the prevention and treatment of COVID 19 has become the priority for the majority of the population, most medical professionals are facing the challenge of balancing the management of this pandemic and treating patients with other diseases. Healthcare professionals from all specialties are facing this situation and designing guidelines and recommendations that are contributing to the literature that is crucial for disease management at the current time. We share our experience with two ends of the spectra that we currently observe in spine patients. One group of patients included the non-operative cases that presented with back pain. Further, we discuss our experience with operative precautions and digitally assisted discharge.
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Effect of Plasma Power on Corrosion Behaviour of Plasma Sprayed Hydroxyapatite Coatings
Swarnima Singh,Krishna Kant Pandey,Anup Kumar Keshri 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.11
Hydroxyapatite coating have been deposited on titanium alloys (Ti–6Al–4V) substrate by varying plasma power from 20to 35 kW using atmospheric plasma spraying. Effect of plasma power variation on the microstructure as well as corrosionbehaviour of the coatings has studied exhaustibly in simulated body fluid (SBF). Microstructural analysis revealed thatincreasing the plasma power from 20 to 35 kW has led to a more densified coating by minimizing the level of porosity andpartially melted region as well. This enhanced property is attributed to the higher velocity of the in-flight particles withtheir shorter residence time at 35 kW. The molten particles strike the substrate without losing much of its energy during itsflight, which further boosted the closed packing of the coating layers ensuing a reduced inter-splat region. These improvedmicrostructural properties also escorted to enhancement in corrosion resistance with increase in the plasma power. Thisenhancement in corrosion behaviour at higher power is attributed to reduction in pores and voids in the coatings whichhindered the penetration of SBF solution into the coatings.
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Arunkumar, P.,Aarthi, U.,Sribalaji, M.,Mukherjee, B.,Keshri, Anup Kumar,Tanveer, Waqas Hassan,Cha, Suk-Won,Babu, K. Suresh Elsevier 2018 Journal of alloys and compounds Vol.765 No.-
<P><B>Abstract</B></P> <P>Pure zirconia (ZrO<SUB>2</SUB>) and ceria (16 mol%) stabilized zirconia (CeSZr) thin films were prepared by electron beam physical vapor deposition with varying deposition rates (1, 4 and 8 Å/s) in order to correlate the phase changes to the mechanical property. X-ray diffraction and Raman spectra results indicate the presence of mixed monoclinic and tetragonal phases in ZrO<SUB>2</SUB> film, but tetragonal phase dominated at lower deposition rate. However, irrespective of the deposition rate, cerium addition to ZrO<SUB>2</SUB> resulted in complete stabilization of tetragonal phase. Depending on the presence of dual (ZrO<SUB>2</SUB>) or single (CeSZr) phase, either surface cracks or well-connected grain structure was observed in SEM, respectively. Thus, CeSZr film showed a four-fold increase in hardness in comparison to ZrO<SUB>2</SUB>, which can be attributed to the complete stabilization of tetragonal phase that hinders the crack propagation along the grain. Plastic deformation of CeSZr film was found to be 1.80 × 10<SUP>−2</SUP> GPa, which is about ∼55% higher as compared to pure ZrO<SUB>2</SUB> film (8.04 × 10<SUP>−3</SUP> GPa). Thus, the development of CeSZr coating may lead to better surface protection of many components.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Zirconia and ceria (16 mol%) stabilized zirconia (CeSZr) films deposited by EB-PVD. </LI> <LI> ZrO2 thin film showed mixed tetragonal and cubic structure. </LI> <LI> CeSZr thin film formed with single phase tetragonal structure. </LI> <LI> CeSZr film exhibited a four-fold increase in hardness in comparison to ZrO2 film. </LI> <LI> Deposition rate and chemistry influence the mechanical property of films. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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