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Executive functions and psychological flourishing in public sector employees
The present study examined the relationship between executive functions and psychological flourishing. Executive functions are based on three broad brain capacities namely: inhibitory control, working memory and cognitive flexibility. The participants for the study comprised 99 executives working in public sector organizations in India. Correlational analysis was computed to examine the relationship between executive functions and psychological flourishing. Multiple regression was used to find out if executive functions predicted psychological flourishing. The significant positive association of psychological flourishing with self-restraint, working memory, emotional control, focus, task initiation, planning/prioritization, organization, time management, defining and achieving goals, flexibility and observation was observed. The results of the multiple regression indicated that working memory, focus and observation predicted psychological flourishing. 2021 Ecological Society of India. All rights reserved. -
Executives Perception about Project Management Practices in BEML Bangalore
International Journal of Research in Commerce, IT & Management Vol.2, No. 7, pp 69-74, ISSN No. 2231-5756 -
Exosomal mediated signal transduction through artificial microRNA (amiRNA): A potential target for inhibition of SARS-CoV-2
Exosome trans-membrane signals provide cellular communication between the cells through transport and/or receiving the signal by molecule, change the functional metabolism, and stimulate and/or inhibit receptor signal complexes. COVID19 genetic transformations are varied in different geographic positions, and single nucleotide polymorphic lineages were reported in the second waves due to the fast mutational rate and adaptation. Several vaccines were developed and in treatment practice, but effective control has yet to reach in cent presence. It was initially a narrow immune-modulating protein target. Controlling these diverse viral strains may inhibit their transuding mechanisms primarily to target RNA genes responsible for COVID19 transcription. Exosomal miRNAs are the main sources of transmembrane signals, and trans-located miRNAs can directly target COVID19 mRNA transcription. This review discussed targeted viral transcription by delivering the artificial miRNA (amiRNA) mediated exosomes in the infected cells and significant resources of exosome and their efficacy. 2022 The Authors -
Exosome mediated cell signal toward breast cancer metastasis: A comprehensive review
Breast cancer (BC) is among the most frequent cancer and is, more challenging to treat due to its heterogeneity and metastatic ability. Among extracellular vesicles, exosomes are quite significant for diagnosis and prognosis, given their pleiotropy and drug-carrying abilities. Studying their functions, morphology, biogenesis, and involvement in important pathways can help us understand their role in BC proliferation. A detailed review of their roles in different stages of BC as metastatic disease, such as proliferation, intravasation, epithelial to mesenchymal transition, extravasation, immune evasion, and metastatic growth, can help us understand how to target therapy as well as diagnosis. In the metastatic process, exosome involvement can also be tied to the seed and soil hypothesis, allowing us to understand the direction of progression. From their isolation to the study of their contents in relevance to BC in the process of detection, we have therapeutic applications and can make a significant contribution to the field of oncology. Hence, the present review focuses on this exosome-mediated cell signaling molecule and its importance in BC progression and development. 2022 Anushka and Pappuswamy, et al. -
Expanding the Notion of Personal Well-Being During COVID-19 Campus Closure in India: Results from a Mixed-Methods Study with Members of Higher Education
The COVID-19 pandemic has challenged lives globally in unprecedented ways. While numerous studies have discussed the impact of this pandemic on human lives, this descriptive study examined how this pandemic affected personal well-being (PW) for members of Indian higher education in the early phase of the pandemic in 2020 when there were no vaccines and remedies available. Research participants (n = 551) were faculty members, graduate students, and non-teaching staff in Indian higher education. At the time of data collection, when all campuses were closed, all participants were functioning in their roles in the academic communities via virtual platforms. This descriptive study, based on a mixed-methods research design with concurrent triangulation strategies, collected data from all regions of India. Resulting data identified and discussed the impact of the pandemic on six domains of PW in the life of participants: (a) self-care; (b) professional growth; (c) quality of interrelationship within the family; (d) relationships with significant others outside of the family; (e) process of experiencing/facing and addressing challenges; and, (f) relationship with spirituality/transcendental dimensions. The relevance of the last domain may be unique to Indian participants socio-cultural context and ethos. The findings and discussion explain how PW is a composite of all these six domains, and the pandemic expanded the notion of PW for the members of Indian higher education. Further, the findings also provided a general orientation on how educational leadership teams and institutions can enhance at least three specific dimensions of their community members and thus increase the likelihood of improving the quality of their professional and personal life. The findings may also have relevance for academic communities worldwide and inform clinicians working with members of academic communities, educational institutions, and policymakers. Penerbit Universiti Sains Malaysia, 2024. -
Expatriate perceptions towards commitment based HR practices: impact on job retention in Indian IT industry /
International Journal Of Management And Development Studies, Vol.6, Issue 8, pp.29-45, ISSN: 2320-0685 (Online) 23211423 (Print). -
Experiment investigations of effect of laminate thickness on flexural properties of GLARE and GFRP laminates
The study focuses on the fabrication of Glass Fiber Reinforced Aluminum (GLARE) laminates and evaluation of their flexural properties. Aluminum 2024 (T3) sheets were used for the fabrication of GLARE laminates along with E-glass fiber in the form of chopped strand mat and epoxy resin. Different thickness of aluminum sheets ranging from 0.2 mm to 3.5 mm was used to fabricate the GLARE laminates. Hand layup technique is used to bond together aluminum sheets and epoxy/E-glass fiber laminates under different configurations. The test specimens were prepared as per ASTM standards, and standard three-point bending test was carried out to evaluate different bending characteristics. An increase of 60% in load-bearing capacity was observed when aluminum sheet thickness was an increase from 0.2 mm to 0.35 mm. Similar The results were compared with similar glass fiber reinforced plastic (GFRP) laminates to analyze improvements, whereas, the maximum deflection of the laminate decreased. There were not many improvements in case of bending strength and bending modulus when aluminum sheet thickness was varied. Fracture surface analysis indicated three modes of failure namely, interfacial delamination, delamination bonding, and fiber breakage. When compared with glass fiber reinforced plastics of similar configuration, a substantial increase in bending strength was observed. 2018 IOP Publishing Ltd. -
Experimental analysis and RSM-based optimization of friction stir welding joints made of the alloys AA6101 and C11000
In the present study, the evaluation of FSW input parameters on output response ultimate tensile strength (UTS) of the friction stir welded AA6101-C11000 joint is in agreement. The response surface methodology (RSM) was adapted for generating the mathematical regression equation to predict the UTS and to develop the FSW parameters to attain the highest UTS of the FSW joints. The central composite design (CCD) method from RSM with five levels and three factors, i.e., tool rotational speed, feed rate, and tool offset used to conduct and minimize the number of tests. During FSW, base sheet cu (hard metal) was stationed on the advancing side (+1 mm, +1.68 mm tool offset) and the base sheet Al (soft metal) on the retreating side (?1 mm, ?1.68 mm tool offset). The radiography studies were accomplished to inspect the internal flaws of the FSW joints (Al-Cu).The XRD and SEM investigation of the ruptured specimens during the tensile test to evaluate the IMCs phase anatomy and fracture analysis. The maximum UTS value measured during the experimental work was 142.69 MPa at 1000 rpm, 40 mm min?1, and ?1.68 mm tool offset. The highest joint efficiency obtained was 82% compared with the AA6101 UTS value. RSM adapted for this work was 92% accurate and satisfactory. 2023 The Author(s). Published by IOP Publishing Ltd. -
Experimental analysis of biofuel produced from fat derivatives of bird and animal as an additive fuel in CI engine
In the present work, an alternative form of biofuel for the Compression Ignition (CI) Engine is generated from inedible disposable chicken skin and pig tallow. The collected resources are heated up to 80C to extract fat and subjected to a trans-esterification process to obtain biofuel. The process resulted in 730ml and 950ml of high viscous biofuel from 1000ml of fat from waste chicken skin (WCS) and pig tallow (PT) respectively. The pure biofuels from WCS and PT have 38.07% and 41.68% higher viscous than diesel. The obtained biofuel is blended with diesel at 10, 20, and 30% by volume. The thermal, physical, and chemical properties of blended fuel are determined and found closer to the diesel properties. The engine tests indicate that the brake power of the B30 blend was decreased by 15.78% while the B10 combination produces 11.02% less power as compared to diesel at full load. The efficiency was reduced by 22.15, 7.59 % for B30, and B10 respectively at full load condition. About 3.9% and 34% of reduction in NOx, 22.5%, 27.5% of reduction in HC emission were recorded for respective blends at the same operating condition. This paper emphasizes on deriving value-added products from waste resources and its effective utilization. The findings from work indicate that the derived biofuel could be used in combination with diesel for the adequate partial replacement of diesel in CI engines without any significant alterations. 2020 International Journal of Renewable Energy Research. -
Experimental and Analytical Study of High-Strength Concrete Containing Natural Zeolite and Additives
The study compares the durability of Natural Zeolite with Metakaolin, Silica Fume, and Fly Ash on high-strength concrete. 300 concrete specimens were tested for compressive strength before and after an acid attack, modulus of elasticity, water absorption, and rapid chloride permeability. 5%, 10%, and 15% of the cement were replaced with cementitious elements while maintaining the same quantity of Natural Zeolite. In this investigation, the water-cement ratio was maintained at 0.35. After 28 days, the specimens were tested for durability. Samples of all mixes were TG/DT and FTIR tested. The optimal percentages of cementitious materials that resulted to the maximum durability enhancements were reported as the study results. Experimental results showed that Natural Zeolite and Metakaolin strengthened the durability of concrete. All the data show that 5% Natural Zeolite with 10% Metakaolin performs well. Good R2 values and appropriate independent variable coefficients suggested that the regression findings for high-strength concrete durability were accurate. The P values of all models were less than 0.005 and the F values were statistically significant and appropriate; therefore, the generated models predict concrete's strength with authenticity. 2022 by the authors. Licensee C.E.J, Tehran, Iran. -
Experimental and finite element analysis of thermal stress on thermal spray coated AISI 304 stainless steel specimen using low cost solid lubricant
The scope of this work is to investigate the thermal stress on the CaF2 coated AISI 304 stainless steel substrate using both finite element analysis and experimental method. The influence of temperature and coating thickness on the thermal stress was investigated by conducting the test at different temperatures ranging from 100C to 1000C and by varying the coating thickness at 250, 350 and 450m. Stoneys equation was then used to investigate the thermal stress analytically and the finite element analysis results were then compared with the analytical results. From the experimental results it was found that the specimen coated with 450m coating thickness has better resistance to thermal stress compared to other samples taken for investigation. The experimental results were then validated to confirm the effectiveness of the coating thickness by conducting a confirmation test using thermal shock test to validate the results experimentally. The samples after the thermal shock test were examined using SEM, revealing numerous cracks, voids and peel off of the coating as the major reason for higher thermal stress on samples coated with 250 and 350m. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature 2023. -
Experimental and finite element studies on the mechanical properties of high-strength concrete using natural zeolite and additives
Addressing high carbon footprints is a critical global problem in cement production. Using environmentally friendly materials has proven to be a solution to environmental challenges. In this study, High-Strength Concrete of M60 is produced with Natural Zeolite and industrial waste materials. The combinations of 5 % zeolite and varying percentages of industrial wastes such as Silica Fume, Metakaolin, and Fly Ash are tested for mechanical properties. The laboratory test data is compared with numerical simulations to assess the accuracy and determine the error percentage for concrete strength predictions. The process involves the development of numerical solutions by ANSYS to predict strength. The developed numerical solution determines the accuracy of identifying the difference between the experimental and numerical data. The present research on the comparison of experimental and numerical data by ANSYS showed the lowest error percentage, which is acceptable for all the strength properties of concrete. 2024 -
Experimental and Theoretical Approach of Evaluating Chitosan Ferulic Acid Amide as an Effective Corrosion Inhibitor
Phenolic acid grafted chitosan has widespread drug delivery applications, as bio adsorbent, packing material, etc., due to its excellent antioxidant and antimicrobial properties. However, for the first time, the anticorrosive efficiency of ferulic acid modified chitosan has been investigated. The prepared chitosan derivative is characterized using spectral methods, thermal analytical methods, surface charge, and particle size analysis. The evaluation of corrosion inhibition potential showed a highest value of 95.96% at 303K. Thermodynamic activation and adsorption parameters endorse a mixed adsorption process involving an initial electrostatic interaction followed by chemisorption. Electrochemical studies gave results which agreed well with the gravimetric studies. Surface morphological studies were performed using contact angle measurements, FESEM, EDAX, AFM, optical profilometric and UV spectral techniques. Computational studies involving quantum chemical calculations, Monte Carlo and molecular dynamic simulation studies, and radial distribution function analysis are further done to validate the experimental results. Graphical Abstract: [Figure not available: see fulltext.] 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG. -
Experimental and Theoretical Investigation of 3-[(2-chlorophenyl)diazenyl]pyridine-2,6-diamine as Optical Limiter
Azobenzenes undergo reversible trans-cis photoisomerization and have been extensively studied as photoresponsive material. In contrast, azopyridines have garnered relatively less attention despite their similar photochemistry. When compared to azobenzene, azopyridines offer more opportunities for material design through hydrogen bonding and coordination chemistry. Here, we report the isomerization for 3-[(2-chlorophenyl)diazenyl]pyridine-2,6-diamine (1od) through an integrative experimental and computational study. Notably, the energy barrier of 1od was significantly lower than that of previously reported azobenzenes. Moreover, we investigated and elucidated the photoisomerization pathway. 1od exhibited high nonlinear absorption, with a nonlinear absorption coefficient (?eff) of 1.31 (Formula presented.) 10?9 m W?1, as determined by Z-scan measurements. The results indicate that 1od has potential applications in optical limiters, which are used to fabricate protective eyewear and safeguard optical sensors from damage. 2023 Wiley-VCH GmbH. -
Experimental design for optimization of 4-nitrophenol reduction by green synthesized CeO2/g-C3N4/Ag catalyst using response surface methodology
In this study, the enhancement of catalytic activity of ceria when modified with co-catalysts such as graphitic carbon nitride and silver was established. The material was synthesized using phytogenic combustion method, a green alternative to the traditional preparative routes. The catalyst was characterized using XRD, FTIR, SEM, EDX, XPS and TEM techniques. The synergistic effect of the composite CeO2/g-C3N4/Ag was tested for catalytic reduction of 4-nitrophenol in the presence of sodium borohydride. The reaction was carried out at room temperature without any light source or external stirring. The individual and combined effects of four parameters, viz., concentration of 4-NP, amount of catalyst, amount of NaBH4 and time for the reduction of reduction 4-NP were investigated using Box-Behnken design of response surface methodology (RSM). This statistical model was used to optimize the reaction conditions for maximum reduction of 4-NP. The optimum conditions for the reduction reaction are found to be 0.01 mmol/L 4-NP, 15 mg catalyst, 20 mg NaBH4 and 13.7 min time interval. 2020 Chinese Society of Rare Earths -
Experimental evaluation of image segmentation for heart images
The cardiac death is the principal reason of the death in the world.The research work focuses on finding an efficient image segmentation technique for the computer aided detection and also to decrease the noise in the image.The segmentation is implemented with the help of fuzzy C-means clustering along with dual inverse thresholding function and Otsu thresholding.Experimental proof is evaluated with the help of morphological functions and with Gaussian function.The result of the work provides an accurate segmentation for myocardial ischemia in the human heart photo image as well as magnetic resonance imaging. Copyright 2021 Inderscience Enterprises Ltd. -
Experimental instigating a counter cultural film platform in Bangalore /
Moving Image Review & Art Journal (MIRAJ), Vol.7, Issue 2, pp.189-297, ISSN No: 2045-6298. -
Experimental investigation and influence of filling ratio on heat transfer performance of a pulsating heat pipe
Experimental investigation of the two-phase system of a pulsating heat pipe taken into account useful heat transfer In the field of thermal management, many new prospective concepts and techniques have been developed, one of which is the pulsating heat pipe, a classic heat transfer technique. The PHP is constructed from 8 turns of copper tubes with inner diameters of 2 mm, wall widths of 1 mm, and a total length of 5324 mm. The CLPHP uses ethylene glycol as the functioning liquid at different fill proportions of 45 %, 55 %, 65 %, 75 %, and 85 % of its amount. The evaporator section is heated electrically by a plate heater ranging from 120 W to 600 W, and the condenser section is cooled by a continuous flow of cooling water. The results thermal resistance decreases gradually with an increase in heat transfer rate. It is apparent that a lower rate of thermal resistance is by a fill ratio of 55 %. The evaporator temperature is 181.57 C and the condenser temperature is 41.06 C for ethylene glycol measured for calculating heat transfer performance at 600 W, thermal resistance is 0.136 C/W, heat transfer coefficient is 526.45 W/m2-C, and enhanced heat transfer is thus good, exhibiting good improvement at a full percentage of 55 % and when compared with CFD results. 2023 Elsevier Ltd -
Experimental Investigation and Numerical Simulation of Air Circulation in a Non-AC Bus Coach System
Air circulation plays a vital role in the comfort of passengers in a bus, being a non-AC bus without any aid from the air conditioning system. The circulation of air is utterly dependent on the design of the bus and the natural flow of air. However, optimize the flow of air inside the bus, a study on the design of the bus is needed. In this regard, experimental work was carried out to achieve uniform airflow by redesigning the coach into an aerodynamic shape. The openings are provided at the leading edge of the bus to evaluate the best possibility for air to circulate in the bus. Three openings were provided at the leading edge of the bus, the first and second openings were mere openings, and the third opening was fitted with a roof vent providing three different geometric patterns to airflow. The initial boundary conditions were developed by considering that all windows and doors of the bus are closed. The scaling ratio of 1:20 was considered for modeling the bus. The experiments were conducted in the wind tunnel test rig. It was observed from the experimentation that the velocity of the air was considered to be the most influential parameter for the optimal air circulation. The velocities of 21.96 m/s and 22.68 m/s were obtained inside bus. The obtained experimental velocities were validated with results obtained by the Computational Fluid Dynamics (CFD). It was observed that a deviation of 5% for the given velocity of 20 m/s. 2022 Materials and Energy Research Center. All rights reserved. -
Experimental investigation of a biomass-derived nanofluid with enhanced thermal conductivity as a green, sustainable heat-transfer medium and qualitative comparison via mathematical modelling
In this study, bio-based carbon nanospheres (CNSs) were synthesized from lignocellulosic-rich groundnut skin (Arachis hypogaea) and tested for their practical application in nanofluids (NFs) for enhanced heat transfer. The CNSs were characterized using various techniques, including FESEM, EDS, XRD, Raman spectroscopy, zeta potential analysis, and FTIR. Thermal conductivity (TC) and viscosity measurements were conducted using transient plane source (TPS) technique with a Hot Disk thermal analyser and discovery hybrid rheometer, respectively. The nanoparticles (NPs) were dispersed in two base fluids: ethylene glycol (EG) and a 60 : 40 mixture of deionized water (DI) and EG. Optimization studies were performed by varying the stirring and measurement times to improve TC values. The results showed that when a power source of 40 mW was applied at a high concentration of nanoparticles (i.e., 0.1 wt%), there was a 91.9% increment in thermal conductivity (TC) compared to the base fluid EG. DI-EG-based nanofluids (NFs) exhibited enhancements of up to 45% compared to the base fluid DI-EG (60 : 40), with a heating power of 80 mW and concentration of 0.1 wt%. These results demonstrated significant TC improvements with NP incorporation. Further experiments were performed by varying the temperature in the range of 30-80 C with readings taken for every 10 C increase, which showed a direct relation with the TC values. At 80 C, EG-based NFs showed increments of 77%, 111.49%, 139.67% and 175% at 0.01, 0.02, 0.05 and 0.1 wt% concentrations of NPs, respectively. It was also found that with the increase in the concentration of NPs, viscosity increased, whereas an increase in the temperature led to a decrease in viscosity. The CNS nanofluid exhibited a Newtonian behaviour with the nanoparticle concentration and temperature, resulting in an approximately 114% enhancement compared to the base fluid when the concentration of CNSs was 0.1 wt% at 30 C but decreased by up to 18% when the temperature was increased to 90 C. Using appropriate mathematical models for assessing thermophysical quantities, it was discovered that the model values and experimental values correspond reasonably well. Our method thus validates our experimental results and deepens the understanding of the mechanisms behind enhancing thermal conductivity in biomass-derived nanofluids. In summary, our work advances sustainable nanomaterial synthesis, providing a new solution for boosting thermal conductivity while maintaining environmental integrity, thereby inspiring further research and innovation in this field. 2024 RSC.