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Rayleigh bernard convection in couple stress fluid with maxwell cattaneo law
The onset of thermal instability in horizontal layers of fluid heated from below illustrates many physical and mathematical features of the general theory of hydrodynamic stability. The effect of non-Fourier heat transfer in couple stress in a Rayleigh Benard configuration is analyzed theoretically in this thesis. Broad range of applications of couple stress fluid and the need for its characterization at a relatively small scale of time and length act as a motivation for the study of buoyancy driven convection in such fluids under the influence of magnetic field and under various modulations such as temperature, gravity, rotation and magnetic field by employing Maxwell Cattaneo law. newlineLinear and non linear magneto convection in couple stress fluid with Maxwell Cattaneo law newlineThe interesting facets brought about by the interactions between convection and magnetic fields in a Rayleigh Benard configuration for free free boundaries are analyzed in this chapter. Linear and weakly non linear stability analysis are carried out to study the system. It is proved that the oscillatory mode is not the preferred mode of instability. The couple stresses in the fluid and magnetic field are found to enhance the stability of the system whereas non-Fourier effects destabilized the system. newlineEffect of temperature modulation on the onset of Rayleigh Benard convection in a couple stress fluid with Maxwell Cattaneo law newlineThe effect of externally imposed time-periodic boundary temperature on the setting in of convection is examined using linear stability analysis. The Venezian approach is applied to deduce the critical Rayleigh number and critical wave number. The stability of the system is characterized by a correction Rayleigh number and is obtained as a function of the Cattaneo number couple stress parameter Prandtl number and the frequency of modulation. The study analyzes three types of temperature modulations viz. in phase, out of phase and only lower wall modulation. -
Influence of Perceived autonomy Support and Personality Traits on Accountability of Higher Secondary School Teachers
The term Accountability, has its origin in ethics. It deals with proper behaviour, newlinebeing responsible for one s actions towards other people and agencies. It has synonyms such as transparency, liability, answerability, and expectations of account newlinegiving (Levitt et al., 2008). Every teacher must respect each student, despite of their newlinebackground, race, gender and provide ample support to achieve excellence. The teacher must teach with highest standards without bias, teacher s primary concern must be students academic excellence, and finally teacher is expected to keep up the highest level of professionalism by being respectful to parents, colleagues, and students (College, 2011). Perceived autonomy support refers to the belief of teachers that administrators or principals consider them as competent, to have freedom of choice and the experience of belongingness and supporting environment. Perceived Autonomy Support has its root in Self-determination theory founded on three core psychological needs such as competence, autonomy, and relatedness (Deci et al.,1985). Personality trait refers to a combination of characteristics that are innate as well as characteristics that are developed due to specific life experiences. John et al., (2010) have summarized all the human personality traits under the umbrella term, the Big Five (openness, conscientiousness, extroversion, neuroticism, and agreeableness). This study examines the relationship among the three major variables such as Accountability of Teachers, Perceived Autonomy Support and Personality Traits. newlineFurther it explores whether Perceived Autonomy Support and Personality Traits have newlineany significant impact on Accountability of Higher Secondary School Teachers. Thirdly it identifies significance of Accountability, Perceived Autonomy Support and Personality Traits and its components across Type of schools, Gender, Age, Marital Status, Teaching Experience, Educational Qualifications and Subjects. -
Role of online visual merchandising and personality attributes on purchase intention of customers in the apparel industry
The visual merchandising sector on the online platform has considerably impacted the sales as online visual merchandising (OVM) strategies have become a relatively new concept. The tremendous growth of electronic retailing has led to the adoption of new visual merchandising concepts which are digital. A web space which is visible and aesthetically not appealing distracts the customers across all the generations, which makes them switch to other websites. Online retailing is a competitive and dynamic area, which is created based on the artificial brick and motor concept. This artificial brick and motor concept has to be created on an online shopping platform in terms of attracting the end consumers. Moreover, to do this there needs to be a trigger, or in other words a stimulus which causes an action which leads to a response (reaction). Based on the past theories by psychologists the stimulus and response is not the only factor that serves as a basis for decision making, there is a third essential and integral dimension, organism. Organism simply means a system consisting of interdependent parts which are interlinked. Therefore, personality attributes considered the organism is said to be vital in attracting prospective customers. Current research aims at analysing such prospects on an equal sample size of 400 newlineeach from generation X, Y, Z who have engaged in the online purchase of apparel. Responses newlinewere obtained equally from male and female respondents based on a web survey. Structural newlineequation modelling (SEM) was used for analyses of data. The study proposes a research framework of Stimulus-Organism-Response(SOR) model. Results of the study suggest different personality characteristics of generations considered as organisms mediate the relationship between online visual merchandising cues and play a vital role in purchase intention. Therefore, it is imperative to distinguish between ages and generations to cater to the needs of generation X, Y and Z segmented as customers. -
Linear and nonlinear convection in magnetic fluids /
The thesis deals with linear and nonlinear Rayleigh-Benard ferroconvection in a horizontal porous layer. Modified Darcy law is used to describe the fluid motion. The effect of chemical reaction, temperature modulation, gravity modulation and finite amplitudes on the onset of Darcy ferroconvection is considerd. The findings of the problems addressed in the thesis may come in handy for heat transfer application situations with ferromagnetic fluids as working medium. -
Facile Fabrication of Nano carbon Derivatives for Optical and Electro chemical Applications
From synthesis of novel materials to their end-use applications, the prime objective of the material science community is to address the burgeoning social issues across the world. Noxious emissions from fossil fuel combustion, increased incidence of skin cancer, drug misuse, and ever-increasing demand for energy are some of the global concerns that require urgent consideration. This drives a relentless quest for a multifunctional material with broad applicability that can directly and constructively impact the quality of life, environment, and economic progress. However, materials of this kind should embrace versatile characteristics, improved competency, plausibility, and lower cost. In light of this, the current doctoral research emphasizes the development of trailblazing graphene-based materials with manifold usages derived from a naturally abundant carbonaceous fossil fuel coke to discover scientific solutions to the aforesaid trials and tribulations. Fossil fuel coal, mainly used for energy purposes, is often discouraged from industrial and domestic consumption due to its contribution to global warming. Despite the fact that coal is a non-renewable resource and a source of greenhouse gas emissions, it is one of the world's bountiful carbon resources. Therefore, it can be exploited as a potent substitute for conventional graphite, enabling the extraction of value-added graphene derivatives along with the sustainable utilization of coal. However, the purity of the precursor is a vital criterion to guarantee the quality and supply of graphene materials. In this doctoral work, coal-coke with 99% carbon content was used for the production of high-quality oxidized multilayer graphene derivatives by employing an environmentally-benign synthesis technique. The obtained graphene structure exhibited a multi-emissive fluorescence property having emissions ranging from blue to green-yellow. In addition, it also possessed remarkable electrochemical performance, good rate capability, and durability, signifying its expediency in energy storage devices. In an attempt to further enhance the scope of as-synthesized coke-based graphene derivatives, heteroatoms such as nitrogen and phosphorus were introduced into the graphene lattice via substitutional doping. It was perceived that nitrogen doping impressively amended the photophysical properties, especially in terms of quantum yield and fluorescence lifetime. Therefore, the as-synthesized nitrogen-doped multilayer graphene derivative was used as a fluorescent biomarker for imaging melanoma skin cancer cells with the purpose of early detection. Wherein co-doping of nitrogen and phosphorus endorsed excellent electrochemical characteristics and sensing performance, owing to the synergistic effect from heteroatoms and the imparted structural corrugations. Thus, by utilizing the as-synthesized nitrogen, phosphorus co- doped heteroatom derivative, oxytocin, a high-risk abused drug, was electrochemically detected in an nM range and validated the possibility of real-time surveillance over its mishandling in edibles and biological models. The coke-based graphene derivatives were further refashioned to obtain optimum textural and surface chemistry characteristics beneficial for energy storage characteristics. Accordingly, simultaneous heteroatom-doping and activation of graphene derivative were achieved. The obtained sample had a high surface area, hierarchical porous structure, increased defect densities, and co-active heteroatom enriched graphene network, suggesting its potential as an electrode material for supercapacitor applications. It was observed that the as-synthesized simultaneously heteroatom-doped and activated samples demonstrated high capacitance value, appreciable cyclic stability, and lower charge-transfer resistance. Henceforth, such enhanced supercapacitive performance points toward the cradle-to-gate transformation of fossil fuel, i.e., the conversion of sluggish black coal to green energy. -
Identification and standardization of counsellor competencies for master level counsellor education programs in india
Counselling psychology programs in India have been criticized for being poor replicas of newlineconcepts that have originated in western cultures . The lack of Indian models has been quoted as a drawback indicating that trainees are not necessarily competent to provide effective counselling services. The present study aimed at identifying and standardizing competencies for post graduate counsellor training in India based on local needs.The study employed a mixed methods design with four phases. In the first phase, a list of key occupational tasks were drawn up through a systematic review of literature and interviews with three expert practitioners. The second phase was the development of a counsellor competency list which outlined the various competencies required to fulfil the key occupational tasks determined in the previous stage. Seventy one competencies were identified and the list was then given for newlineexpert validation. In the third phase, the competency list was given to 75 practicing newlinecounsellors across India who rated the competencies on a 5-point likert scale, based on its importance for post graduate counsellor trainees. In the final stage the prioritized competencies were analyzed using a concept development approach to identify core competencies required for master level counselling psychology trainees. The resulting core competencies were three foundational competency domains which included ethical practice, personal and professional development and cultural sensitivity. There were also three newlinefunctional competency domains which included the counselling process, the supervision newlineprocess and the promotion of counselling in India. Specific competencies under each domain were also listed along with behavioral indicators for the same. Thus the core competencies that counsellor trainees must develop to provide an effective service were identified and this has implications for training and practice. -
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In Service Teachers' Diffrentiated Instructional Strategy and Students' Reflective Thinking and Empowered Learning
Every educational program aims at the comprehensive growth and development of learners. Education policymakers and teachers who are part of any education system have a pivotal role in providing an environment that empowers learners. Thinking pervades all spheres of human action and the ability to think reflectively differentiates man from other animals. Psychological theories have proved that, in a classroom, each learner is unique and has different learning profiles, i.e., learning style, intelligence preference, culture and gender. Therefore, one- sized curriculum doesn't fit all. This research was conducted to measure the influence of differentiated instructional strategy of in-service- teachers as a pedagogy on students' reflective thinking and empowered learning. The researcher developed and standardized a module of 16 lesson plans on English grammar and poetry integrating essential components of reflective thinking and empowered learning into differentiated instruction. Randomly selected samples of this research consisted of 100 students of standard 9, boys and girls, from an English medium ICSE school in the urban district of Bangalore. After a try-out of a few lessons on 25 samples, the researcher taught the lessons through differentiated instruction within 3 months. Through control and experimental groups, pre-test and post-test design, data were collected through 2 measuring tools (1) a questionnaire to measure the level of reflective thinking and (2) Learner empowerment measure. Data analysis of the pre and post-test scores of the experiment group shows a significant impact of differentiated instruction on all four components of reflective thinking of students, i.e., Habitual Action, Understanding, Reflection and Critical Reflection; and on the components of empowered learning of students, i.e., Meaningfulness, Competence, Impact and Choice irrespective of the difference in the gender. The results indicate that differentiated instruction could be implemented in schools as an instructional method to include all types of students and respect their diversity. -
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Development of Privacy Preserving Machine Learning Techniques Using Secure Multi-Party Computation
Machine learning (ML) has brought about a paradigm shift in insight generation across various domains, including healthcare, finance, and pharma, by leveraging historical data. However, the effectiveness of ML solutions hinges on the seamless collaboration between data owners, model owners, and ML clients while ensuring that privacy concerns are meticulously addressed. Unfortunately, existing privacy-preserving solutions have not been able to offer efficient and confidential ML training and inference. This has led to an increased focus on Privacy-Preserving Machine Learning (PPML), which has become a flourishing area of research aimed at safeguarding the privacy of machine learning stakeholders. In this regard, the present research introduces novel techniques for private ML inference and training of models using Secure Multi-Party Computation (SMPC) and Differential Privacy (DP) methods on horizontally and vertically partitioned datasets. The proposed techniques are implemented using Python with open-source libraries such as SyMPC and PyDP to ensure confidential inference and model protection. The findings across various parameters illustrate the effectiveness of the suggested techniques in addressing the privacy concerns of model owners and inference clients, with no significant impact on accuracy and a linear influence on performance as the privacy parameters, such as secure nodes count within the SMPC cluster. are increased. Furthermore, the privacy gain is substantiated by information privacy measures such as Mutual Information and KL-Divergence across different privacy budgets, which demonstrate empirically that privacy can be preserved with high ML accuracy and minimal performance cost. -
Role of project management methodologies in achieving project success and business value creation in financial services IT provides
Increasingly, project-based organizations, have been implementing
project management methodology for specific projects based on the dynamic environment. Financial services face challenges in the form of unstable market conditions, economies and technology, strict controls, and higher stress to meet customer demands and maximize profits. They are compelled to provide services that are tailored to changing customer interests as a result of technological innovations and developments. Financial services especially information technology-based businesses find it difficult to sustain considering the dynamic behavior of the market in terms of efficiency and controlling the cost based on market changes. Moreover, financial services are also constrained to manage stakeholders while maintaining flexibility and responsive processes and focusing on technological advancement to improve success in projects. Many IT initiatives fail to provide the desired outcomes as per the project budgets, project types, and project contexts. Some are also unable to deliver business value to the customers due to the adoption of an unsuitable project management methodology. Regardless of the wide variety of choices, project managers often fail to decide on available alternatives. Project managers tend to tailor projects based on criteria that may not be associated with the overall project objectives rationally. The goal of this research work is to assess the role of hybrid and agile project management approaches in achieving success and creating business value considering project contexts for financial services IT projects. -
Role of project management methodologies in achieving project success and business value creation in financial services IT projects
Increasingly, project-based organizations, have been implementing project management methodology for specific projects based on the dynamic environment. Financial services face challenges in the form of unstable market conditions, economies and technology, strict controls, and higher stress to meet customer demands and maximize profits. Many IT initiatives fail to provide the desired outcomes as per the project budgets, project types, and project contexts. Some are also unable to deliver business value to the customers due to the adoption of an unsuitable project management methodology. Regardless of the wide variety of choices, project managers often fail to decide on available alternatives. Project managers tend to tailor projects based on criteria that may not be associated with the overall project objectives rationally. The goal of this newlineresearch work is to assess the role of hybrid and agile project management approaches in newlineachieving success and creating business value considering project contexts for financial newlineservices IT projects. A conceptual research framework and various propositions were built on the literature analysis. To analyse the theoretical support, data was gathered through an online questionnaire. The survey was administered to project managers who were newlineinvolved at different levels in IT project development in financial service organizations. The study findings demonstrate that the various key success factors vary significantly across hybrid and agile project management methodologies considering different success measures in IT projects. And, such factors and processes play a vital role, especially in large-size high-technology projects. This research work enriches the project management literature and offers practical guidance by applying the contingency approach for comparing the effect of key success factors applicable to financial service IT projects from the viewpoint of hybrid and agile project management approaches. -
Self-care practices, professional quality of life and challenges : An exploration among counsellors in Kerala
The profession of counselling continues to prove its importance in today's fast- paced world, where pausing down and listening to someone are becoming an odd and luxurious concern of people. The counsellor may feel as though they are in a marathon, which demands them to continuously offer unconditional positive regard and empathy for their clients. This may leave them incapacitated to look into themselves and to recognize what is happening to them in this process of caring for others. Though profound discourses take place in the international scenario about the criticality of rendering to the need and well- being of counsellors, evidence-based studies, and effective interventions in this regard are still lacking in the Indian context. This study seeks to fill this gap by exploring, how the positive and negative feelings of continuous caring can affect the professional quality of life of counsellors, what are the self-care mechanisms they adopt, and which are the professional issues they find most concerning. To meet these objectives, the present research employs a mixed- method design in a sequential explanatory fashion. The study encompasses three different phases wherein phase I and II; the sample consisted of counsellors working in various government projects in Kerala selected through dense sampling method and purposive sampling method respectively. In phase III, counsellor experts with more than 20 years of experience in the field are considered through purposive sampling. Findings describe that counsellors tend to follow an unbalanced self-care routine with significantly less focus on professional aspects. The presence of a high risk of burnout and secondary traumatic stress with a moderate feeling of compassion satisfaction call for immediate interventions for counsellors. Lack of benefits, safety issues, concerns about professional identity, poor working conditions, absence of career prospects, and lack of professional credentials are the major challenges identified by the counsellors. Considering these challenges, a set of recommendations are proposed by counsellor experts, which suggest reformations at both the systemic level and academic formation. Specific recommendations are also listed on the development of personal self and professional self for safe, effective and ethical practice of counsellors across a variety of practice settings. Implications exist for policymakers and counsellor educators to create an avenue for supporting a healthier and sustainable counsellor workforce. -
Self-care practices, professional quality of life and challenges: An exploration among counsellors in Kerala
The profession of counselling continues to prove its importance in today's fastpaced world, where pausing down and listening to someone are becoming an odd and luxurious concern of people. The counsellor may feel as though they are in a marathon, which demands them to continuously offer unconditional positive regard and empathy for their clients. This may leave them incapacitated to look into themselves and to recognize what is happening tothem in this process of caring for others. Though profound discourses take place in the international scenario about the criticality of rendering to the need and wellbeing of counsellors, evidence-based studies, and effective interventions in this regard are still lacking in the Indian context. This study seeks to fill this gap by exploring, how the positive and negative feelings of continuous caring can affect the professional quality of life of counsellors, what are the self-care mechanisms they adopt, and which are the professional issues they find most concerning. To meet these objectives, the present research employs a mixedmethod design in a sequential explanatory fashion. The study encompasses three different phases wherein phase I and II; the sample consisted of counsellors working in various government projects in Kerala selected through dense sampling method and purposive sampling method respectively. -
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Impact of Russia-Ukraine crisis on international trade vis-a-vis energy: A critical analysis /
The Russia-Ukraine crisis has had a significant impact on international trade vis-a-vis energy. The crisis has led to increased economic, political, and military tensions between the two countries, creating a ripple effect that has been felt around the world. The conflict has resulted in an increase in energy prices, volatile stock markets, and disrupted global financial flows. Additionally, it has created a greater sense of geopolitical instability, as the crisis has caused NATO to increase its presence in the region. Furthermore, it has led to increased embargoes against Russia, limiting their ability to trade with other countries. All of these impacts have had a ripple effect across the globe, negatively affecting economies and increasing geopolitical tensions. The Russia-Ukraine crisis has
demonstrated the fragility of the global economy and the need for effective diplomatic solutions to be found in order to prevent further destabilizing effects. -
A critical analysis of the complexity of leadership in zimbabwean anglican churches
This study examines the leadership controversy in the Anglican Churches of newlineZimbabwe and evaluates the extent to which the exigencies of power impacted upon this newlineconflict. This study is necessitated by the fact that the Anglican Church Province of Central Africa has been affected by an unprecedented conflict hinged on leadership wrangle and a crisis of legitimacy. This has resulted in the excommunication of Bishop of the diocese of Harare who had deliberately withdrawn from the Anglican international communion to form the province of Zimbabwe. Key to this dispute was the allegation of gay marriages presumably blessed by the Church of the Province of Central Africa (CPCA) although it appears that there were other multifarious factors behind the controversy. Given this background, this study seeks to present a critical exploration of the cardinal factors at play within the context of the Episcopalian polity and try to link church governance and ecclesiology to the context of the Anglican conflict in Zimbabwe. It should be appreciated that, as the world is setting into the 21st Century and Globalization becomes inescapable, a new breed of leaders and leadership paradigm is needed in Christian organizations. There is newlinea general consensus among scholars that the term leadership can be defined from various newlinevantage points. But for the purposes of this study, the term leadership designates the art of inducing competence, an instrument of goal achievement, a form of persuasion. Leadership newlineis the most important factor determining the future of any organization. The style of newlineleadership in a religious organization is a critical determinant in enhancing the stability and growth of the church. To this end, leadership has to do with the manner and approach of providing direction, implementing plans for institutional development, staff development progress in pursuit of organizational excellence. -
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Relationship between Emotional Intelligence andWork - Life Balance among Academicians in Pre University colleges
Emotional Intelligence has always been an encouraging topic for the researchers to dwell on. For a very long time, it was always assessed that Intelligence Quotient (IQ) was a key factor for the determination of success in life. Emotional Intelligence also involves acknowledging the emotions of another individual and how effectively it does coincide with traditional intelligence. The research work is dealt to look at employees and the effects of emotional intelligence and thus looking at the ways in which effective channels are used to channelize the emotions that people go through. Work life balance is a perception with various significances in the current world and implications in the professional and personal life. Work life balance is defined as the stability that the individual requires between period assigned for work and other personal aspects of life. Basis of the study is to develop modules or techniques for training programmes to enhance emotional intelligence and work life balance since there are very few literatures and limited studies conducted before. The study aims at relationship between emotional intelligence and work life balance among academicians in PU colleges. The research study also looks into how experience of the academicians relates to their emotional intelligence and work life balance. Descriptive research design was applied for the study. The essential data for the research was gathered through the standardized questionnaires. A sample of 200 academicians participated in the research. The emotional intelligence test result shows the academicians from different backgrounds and were high on regulation of emotion in the self, acknowledging the emotions of another individual thus providing and shaping the students with more knowledge and insights. From the statistical result from Pearson???s correlation reveals, there is increase in work life balance with the increase in emotional intelligence. The statistical result also accepts the hypothesis and found, there is a moderate positive correlation between emotional intelligence and work life balance. From the statistical result from ANOVA, results showed that there was no significant effect of total years of experience on work life balance. It has been also found from the ANOVA test that, there was an analysis conducted to compare the influence of total years of experience in the current organization on emotional intelligence and found there was a significant effect of total years of experience in the current organization on emotional intelligence. Outcome defines about the emotional intelligence and work life balance among academicians need more attention since they are catering, managing and shaping the students.