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Cognitive Style and Academic Achievement among School Students
The aim of the present study was to explore cognitive style and academic achievement among school students using a quantitative approach. The study involved a total of 423 students from grade VIth and VIIth. Students from both private and government schools participated in the study. The study used group embedded figures test by Witkin et al. (1971) and classroom achievement test by Singh & Gupta (2007) to determine the participants field independent and dependent cognitive styles and academic achievement. T test was used to compare the academic achievement of field independent ?? field dependent cognitive style students. Whereas, two-way Anova test was done to analysis the interaction effect of grades, gender, and type of school along with cognitive style on academic achievement of students. The findings of the present research showed that there was a significant difference between field independent and dependent students' on academic achievement. It also revealed that students with field independent cognitive style performed significantly better than field dependent students. However grades had a significant main effect on academic achievement of students. There was no interaction effect found between grades and cognitive style on academic achievement of students. In addition, it was also found that there was no interaction effect of type of school and cognitive style on academic achievement of students. The findings of the study benefits teachers by indicating significant classroom implications which will help them to develop effective learning materials and strategies which are suitable for their student in order to utilize their cognitive style strength effectively. It helps students in making effective decisions regarding ones enrolment in higher education courses and career choices. Key Words: Field Independent-Dependent Cognitive Style, Academic Achievement, Grades, Gender and Type of School. -
Effect of temperature modulation on Rayleigh-Benard convection in a rotating layer of a ferromagnetic fluid
The stability of a rotating horizontal layer of ferromagnetic fluid heated from below is examined when, in addition to a steady temperature difference between the walls of the layer, a time-dependent sinusoidal perturbation is applied to the wall temperatures. Only infinitesimal disturbances are considered. The effects of the oscillating temperature field are treated by a perturbation expansion in powers of the amplitude of the applied field. The onset criterion is derived when the condition for the principle of exchange of stabilities is valid. The shift in the critical Rayleigh number is calculated as a function of the frequency of modulation, magnetic parameters, Taylor number and Prandtl number. The effect of various parameters is found to be significant for moderate values of the frequency of modulation. It is shown that, when the thermal excitation is symmetric, supercritical motion is more pronounced for low Prandtl number ferro fluids. Further, for the case in which only the bottom wall temperature is modulated, the effect of rotation is to stabilize the system at low frequencies and the opposite is true for moderately large frequencies. The problem throws light on external means of controlling convection in ferromagnetic fluid applications. -
Objectification of women in songs of movies made by V Ravichandran /
V Ravichandran is one of the most popular actor and director in the Kannada film industry who has made several successful films. He is notable for bringing the element of objectification of women in his movies. This paper tries to analyze the way V Ravichandran uses objectification of women to highlight the problems women face in the society. -
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Study of substitution effects on structure and properties of high temperature superconductors and isostructure compounds
The branch of physics which deals with the properties of solid materials and their constituent particles such as protons, neutrons and electrons is known as solid state physics. There are wide ranges of physical properties of solids. Some of the materials are very good conductors of heat and electricity whereas others are bad conductors. -
Study of single and two component convection in micropolar liquid
In this thesis, we study linear and non-linear analysis of RayleighBard and double diffusive convection in a micropolar liquid. The effect of non-uniform basic temperature gradient, non-uniform basic concentration gradient, temperature modulation at the boundary and gravity modulation are studied. newlineThe problem investigated in this thesis through a light on externally controlled internal convection in a micropolar liquid. The problems investigated in this thesis have possible application in geophysics, newlineastrophysics, oceanography engineering and in space situations with gjitter connected with gravity stimulation study. With this motivation, we investigate in this thesis four problems and their summary is given below one by one. (i) EFFECT OF GRAVITY MODULATION ON HEAT TRANSFER BY RAYLEIGH-BARD CONVECTION IN A MICROPOLAR LIQUID newlineThe vertical oscillation, or g-jitter or gravity modulation, is known to appear in the situation of the satellite. In the laboratory, Rayleigh-Bard system subjected to time-periodic vertical oscillations may be useful in regulating the onset of convection and heat transfer. This aspect is also in newlinefocus in the thesis. In this problem the effect of time-periodic body force or grtavity modulation on the onset of Rayleigh-Bard convection in a micropolar liquid is investigated. The linear and non-linear analyses are performed. The linear theory is based on normal mode analysis and perturbation method. The expression for correction Rayleigh number is obtained as a function of frequency of modulation and other micropolar liquid parameters. The non-linear analysis is based on the truncated Fourier series representation. The resulting non-autonomous Lorenzvii model is solved numerically to quantify the heat transport. It is observed that the gravity modulation leads to delayed convection and reduced heat newlinetransfer. (ii) LINEAR AND WEAKLY NON- LINEAR STABILITY ANALYSIS OF DOUBLE-DIFFUSIVE CONVECTION IN A MICROPOLAR LIQUID. -
Study of single and two component convection in micropolar liquid /
In this thesis, we study linear and non-linear analysis of RayleighBénard and double diffusive convection in a micropolar liquid. The effect of non-uniform basic temperature gradient, non-uniform basic concentration gradient, temperature modulation at the boundary and gravity modulation are studied.
The problem investigated in this thesis through a light on externally controlled internal convection in a micropolar liquid. The problems investigated in this thesis have possible application in geophysics, astrophysics, oceanography engineering and in space situations with gjitter connected with gravity stimulation study. With this motivation, we investigate in this thesis four problems and their summary is given below one by one.
(i) EFFECT OF GRAVITY MODULATION ON HEAT
TRANSFER BY RAYLEIGH-BÉNARD CONVECTION IN A
MICROPOLAR LIQUID The vertical oscillation, or g-jitter or gravity modulation, is known to appear in the situation of the satellite. In the laboratory, Rayleigh-Bénard system subjected to time-periodic vertical oscillations may be useful in regulating the onset of convection and heat transfer. This aspect is also in
focus in the thesis. In this problem the effect of time-periodic body force or grtavity modulation on the onset of Rayleigh-Bénard convection in a micropolar liquid is investigated. The linear and non-linear analyses are performed. The linear theory is based on normal mode analysis and perturbation method. The expression for correction Rayleigh number is obtained as a function of frequency of modulation and other micropolar
liquid parameters. The non-linear analysis is based on the truncated Fourier series representation. The resulting non-autonomous Lorenzvii model is solved numerically to quantify the heat transport. It is observed that the gravity modulation leads to delayed convection and reduced heat transfer.
(ii) LINEAR AND WEAKLY NON- LINEAR STABILITY
ANALYSIS OF DOUBLE-DIFFUSIVE CONVECTION IN A
MICROPOLAR LIQUID The linear and non-linear stability analysis of double diffusive convection in a micropolar liquid layer heated and saluted below and cooled from above is studied. The linear and non-linear analyses are respectively based on normal mode technique and truncated
representation of Fourier series. The influence of various parameters on the onset of convection has been analyzed in the linear case. The resulting autonomous Lorenz model obtained in non-linear analysis is solved numerically to quantify the heat and mass transforms through Nusselt and Sherwood number. It is observed that the increase in coupling parameter, micropolar heat conduction parameter and solutal Rayleigh number
increases the heat and mass transfer. (iii) THE EFFECT OF NON - UNIFORM TEMPERATURE / CONCENTRTION DISTRIBUTION ON THE ONSET OF DOUBLE-DIFFUSIVE CONVECTION IN A MICROPOLAR LIQUID The effect of non-uniform temperature/concentration distribution on the onset of double diffusive convection in a micropolar liquid layer heated and soluted below and cooled from above between two parallel
plates of infinite extend separated by a thin layer is studied using linear stability analysis based on normal mode technique. The eigen value is obtained for free-free, rigid-free, rigid-rigid, velocity boundary conditions with isothermal temperature boundary conditions using Galerkian method. It is observed that by choosing the appropriate non-uniformviii temperature or concentration gradient it is possible to advance or delay
the onset of double diffusive convection. (iv) EFFECT OF TEMPERATURE MODULATION ON THE ONSET OF DOUBLE – DIFFUSIVE CONVECTION IN A MICROPOLAR LIQUID
The effect of temperature modulation on the onset of double-diffusive convection in a micropolar liquid is investigated by making a linear stability analysis. The stability of a horizontal layer of fluid heated from below is examined when, in addition to a steady temperature difference between the walls of the layer, a time-periodic sinusoidal perturbation is applied to the wall temperatures. The Venezian approach is adopted in arriving at the critical Rayleigh and wave numbers for small amplitude
temperature. -
Biotechnological Approaches For the IN - VITRO Production of L-DOPA From Callus Suspension Cultures of Mucuna Pruriens (L.) DC.
Plants are an important source of drugs to treat wide array of disorders due to the newlineproduction of various classes of secondary metabolites which are used as active ingredients to treat and cure diseases. One such commercially important metabolite known as 3,4 dihydroxyphenylalanine (L-DOPA) is used to treat various central nervous system disorders like Dementia, Parkinson s, Alzheimer s, etc. Mucuna pruriens (L.) DC. belonging to Fabaceae family has been used since time immemorial to treat Parkinson s disease and the seeds are the main source of all herbal formulations to treat various disorders of nervous system and male newlinereproductive system. Though the metabolite is present in all parts of Mucuna, seeds possess newlinethe highest concentration and it has become a huge challenge to satisfy the emerging demand newlinefor L-DOPA. This is attributed to the conventional methods of extraction from the natural sources of Mucuna sps., which has a low germination rate, less viable seeds and an irritating, itching trichomes on the pods. The need for an alternative method with continuous supply of L-DOPA without affecting the natural biodiversity has been achieved through in-vitro procedures. But there hasn t been a systematic approach to optimize the cultural conditions for the optimal productivity. Hence in our study, we aimed at selecting an elite germplasm of Mucuna pruriens and growing them in-vitro, along with establishing a callus suspension newlineculture and optimizing the cultural conditions for high biomass and L-DOPA production. Callus was induced by supplementing various plant growth regulators like auxins (IAA, IBA, Picloram, NAA, 2,4-D), cytokinins (Kinetin, BAP, 2-iP and TDZ) and their combinations in different concentrations (0.1, 0.5, 1.0, 2.0, 5.0 and 10.0 mg/L). -
Didacticism in popular bollywood films: A study on Raikumar Hirani's directional films /
The dissertation titled “Didacticism in Popular Bollywood Films: A Study on Rajkumar Hirani's Directorial Films,” speaks about the representation of didactic elements in popular Bollywood films. Didacticism is a philosophy that has been employed in various artistic endeavours from time before the Ancient Greeks. This philosophy believes that any piece of literature or art are meant to both entertain and educate. Popular cinema is also an artistic medium and has the ability to attract a number of people. Popular Bollywood Cinema helps us to understand a lot about the culture and lifestyle of the people. -
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Sustainable tourism management : Issues and challenges of eco wildlife resorts in karnataka
Sustainable tourism principles comprise of visitor satisfaction, the economic newlinesustainability of the industry, environment conservation, socio-cultural and economic newlinedevelopment of local communities. The tourism industry has to consider all these elements while developing any form of tourism for its long-term sustainability. Eco and wildlife resorts are one of the prominent and attractive segments of the accommodation sector. It has a major implication for implementing sustainable tourism practices in their daily operations since they are set close to nature and reside in pristine wildlife regions. It is inevitable for eco and wildlife tourism, to consider all newlinethe elements of sustainable tourism practices and to implement it in their day to day newlineactivities. At the same time, they might have to face issues and challenges in newlineimplementing sustainable practices. So, the main objective of the research is to newlineunderstand operational issues and challenges of eco and wildlife resorts in achieving newlinesustainable tourism principles. The purpose of the study is to investigate the issues and challenges faced by eco and wildlife resorts in implementing sustainable tourism practices and understanding the indicators used by the resorts to measure their sustainable tourism newlinepractices. The scope of the study covers selected eco and wildlife resorts in Karnataka because most eco and wildlife reserve areas are shared by pristine natural areas and are located near villages. The targeted respondents of the study are eco and wildlife resort managers and visitors of eco and wildlife resorts. Based on purposive sampling, 30 resorts are selected for the study, and 410 visitors are selected based on convenient sampling technique. The study employs a mixed-method research design. newlineTriangulation design is used in the study. The study adopted a tool to identify the newlinesustainable tourism indicators used by the resorts to measuring their sustainable newlinetourism practices. -
Aspect Based Multi Classification for Text Mining Using Neural Attention Model
Aspect-based text classification is crucial for multi-classification in e- commerce, including diverse sectors like food, online shopping, and restaurants. Traditional research often focuses on a few classes and domains, such as restaurants or electronics, and overlooks the need to categorize sentences based on domain- specific contexts. However, e-commerce involves numerous domains that require more sophisticated classification methods. E-commerce platforms generate vast amounts of textual data, including comments, product descriptions, and customer reviews, which contain valuable information about various aspects of products or services. Since customers often research product reviews from multiple sources before purchasing, these reviews become essential user-generated content for e-commerce businesses. To address this gap, the Aspect-Based Neural Attention Model (ABNAM) was developed. ABNAM enhances classification's accuracy and comprehensiveness by considering each domain's unique characteristics. This leads to better categorization and provides more relevant insights for businesses operating across various e- commerce sectors. Experimental real-world data results demonstrate that ABNAM identifies more meaningful and coherent features. It significantly outperforms other methods by achieving higher accuracy, better recall and precision, and more robust performance across different datasets. The current research introduces an efficient and innovative sentence classification model using ABNAM. Unlike traditional automated text classification models, which struggle to categorize data into sixteen classes, ABNAM excels by leveraging technologies such as TF-IDF, N-Gram, Convolutional Neural Networks (CNN), Linear Support Vector Machines (SVM), Random Forest, and Nae Bayes. Among these methods, ABNAM achieved the highest accuracy at 97%, successfully classifying sentences into one of the sixteen categories. The research positions ABNAM as a novel and highly effective classification model, particularly in achieving high-class categorizations. -
Linear and Nonlinear Convection In Dielectric Fluids
The thesis is concerned with linear and nonlinear Rayleigh-Bard electroconvection in a horizontal porous layer. Modified Darcy law is employed to describe the fluid motion. The effect of non-classical heat conduction, chemical reaction, thermal radiation and finite amplitudes on the onset of Darcy electroconvection is considered. The findings of the problems investigated in the thesis may prove useful in heat transfer application situations with dielectric fluids as working medium. The summary of the problems addressed in the thesis is given below.Effect of non-classical heat conduction on Rayleigh-Bard newlineconvection in a horizontal layer of porous medium saturated with a dielectric fluid The method of small perturbations is used to examine the effect of non-classical heat conduction on the onset of Darcy electroconvection. Exact solutions for both stationary and oscillatory instability are obtained and known results have been deduced as limiting cases of the present study. It is shown that electroconvective instability in a Darcy porous layer is hastened by increasing the strengths of second sound and electric newlineforces and that the presence of second sound and dielectrophoretic force leads to shorter wavelength electroconvection. Further, it is found that the effect of Vadasz number is to advance the onset of oscillatory Darcy newlineelectroconvection and oscillatory instability sets in before stationary convection provided that the Vadasz number and the Cattaneo number are sufficiently large. Rayleigh-Bard convection in a horizontal layer of porous medium saturated with a chemically reacting dielectric fluid The problem of the effect of chemical reaction on the onset of Darcy electroconvection in a horizontal porous layer heated from below is newlineinvestigated. It is assumed that the fluid experiences a zero-order exothermic chemical reaction and that there exists a local thermal equilibrium between the fluid and the solid phases. -
Linear and nonlinear convection in dielectric fluids
The thesis is concerned with linear and nonlinear Rayleigh-Benard electroconvection in a horizontal porous layer. Modified Darcy law is employed to describe the fluid motion. The effect of non-0classical heat conduction, chemical reaction, thermal radiation and finite amplitudes on the onset of Darcy electroconvection is considered. The findings of the problems investigated in the thesis may prove useful in heat transfer application situations with dielectric fluids as working medium. -
Narrating 'Devdas' through cinema: A study on characterization and power relations /
Sarat Chandra Chattopadhyay’s Bengali romance novel ‘Devdas’ has been adapted into movies for over eight decades, four of which are in Hindi. Many directors have applied their own creativity in order to bring out and present a different Devdas every time they remake the film. This paper tries to analyze the way the movies have changed over the years in relation to the change in characterization and power relations, with narration weaving these parameters together. -
Storytelling: An effective way of advertisement /
When the word advertisement strikes the minds of the audience, the very first thing they tend to do is either change the channel or skip it. The term advertisement has always been as something that is only meant to promote a product or a service. Until the last few years, have always seen advertisement as just an Integrated Marketing Communication. Storytelling form of advertisement is not something we see very often on TV or on the Internet. -
OUTWARD FOREIGN DIRECT INVESTMENT FROM INDIA IN THE SERVICE SECTOR WITH REFERENCE TO IT INDUSTRY
Growing international integration through trade and investment is the emerging scenario of the 21st century. International Investment flows, particularly Foreign Direct Investment (FDI), have become a rising manifestation of this growing global linkage between nations. Outward Foreign Direct Investments (OFDI) from India in the service sector is emerging as a significant aspect of Indias international economic integration. Firms from India are incorporating outward foreign direct investment as part of their corporate strategy to compete globally and to acquire key assets. Outward investments is being adopted as part of their global strategy to emerge as leaders in their respective domain.As the significance of outward investment rises, it is important to understand the motivation and strengths behind such flows. With rising significance of services sector, more studies to explain the nature and factors behind outward FDI assumes importance. Therefore a focus on growth of OFDI from service sector like knowledge??intensive information-technology (IT) sector has become very relevant. IT firms from India have created a global presence and brand image. It is therefore important to consider various factors which give competitive advantage to the firms. The present study is divided into six chapters. The first chapter provides an overview and introduces the research issue. The second chapter comprises of a review of literature in the area. Research Methodology is outlined in the third chapter. The fourth chapter consists of an analysis of the trends in Indian outward foreign direct investment. The fifth chapter provides the analysis and interpretation of factors influencing foreign investments by firms. The sixth chapter gives the summary and conclusions of the study. Results of the study indicate that Indias outward foreign direct investment is showing a rising trend and that there are significant changes in the pattern of these outflows. The outflows by service sector firms have increased and there is also rising investment to developed countries. The changing trend is a reflection of the global aspirations of Indian firms and their willingness to compete in the world market. The study shows that India firms, though small in comparison to multinationals from developed world, do have competitive advantage. They have leveraged these advantages and acquired strategic assets to enhance their competitive position. The firms are gaining from experience and building tacit knowledge. These skills are applied to creating a network to supplement and augment their competitive advantage. In this endeavor, macro factors are also playing a significant role. Technological and information revolution has given firms an opportunity to strengthen their competitive advantage. In this endeavor, firms in developing country like India have benefited from a vast pool of educated, skilled and technically qualified human resource. They have been facilitated by a liberalized government policy and the domestic economic climate, which has given them opportunities for entrepreneurship. Rising outward FDI is a manifestation of these changes. As Indian firms seek to strengthen their competitive positions and augment their assets, the outflow of investment to nations that have intellectual assets will increase. At the same time the traditional motive of undertaking investments to seek larger markets is still important. Though India is still a fledgling in the spectrum of outward investments, Indian firms are fast rising up to the challenge of competitive global atmosphere with aggressive strategies. Indian economy is emerging as one of the largest economies in the world. With the second largest population in the world, India has to utilize every opportunity to build sustainable growth with greater international economic linkages with rest of the world. -
