19 research outputs found
TOWARDS A HOLISTIC AND INCLUSIVE PEDAGOGY FOR STUDENTS FROM DIVERSE LINGUISTIC BACKGROUNDS
No full textIn a multilingual classroom, students come from various cultural, linguistic, and racial backgrounds. They have different ideologies, opinions, and needs. In this regard, ‘one size fits all' pedagogy is not only irrelevant but also absurd because the instructions and interactions in the classroom do not cater to the needs of all the students. Therefore, a carefully planned pedagogy that addresses the needs of the individual learners differently in the classroom is needed. In this scenario, implementing multilingual pedagogy in the classroom might be a better idea as it can address the needs of individual learners by making education inclusive and accessible to all. Multilingual pedagogy here is defined as a set of principles that are used to varying degrees in different approaches depending on the teaching context, learners, and curriculum (Neuner, 2004). This paper discusses various approaches, methods, and strategies within the framework of multilingual pedagogy that can be implemented in a classroom consisting of students from diverse linguistic backgrounds. To provide a clear picture of the theoretical ideas, the practical implementation of the ideas in some schools are also discussed. During the implementation, it is indicated that multilingual pedagogy holds the potential to enhance student learning
Stress Among the Students of an Engineering Institution in India: An Empirical Analysis
No full text The rising complexity of modern life has beset us with stress. Students of various professional institutions are increasing beleaguered with this problem. The purpose of this study is to identify the prevalence of stress, its antecedents, and consequences among the students of a newly established engineering institute in India. Specifically, the study aims to investigate environmental, social, psychological, and academic causes of stress and its behavioral consequences. The study sample consists of 339 undergraduate, postgraduate, and doctoral students. The data were collected through a self-designed questionnaire followed by semi-structured interview. The overall stress in the sample was found to be low and the academic factors were identified as the major cause of stress. However, no major unwanted behavioral consequences of stress were observed. Findings and implications are discussed. </jats:p
Factors influencing green purchase behavior of millennials in India
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Purpose
Building on the theory of planned behavior (TPB), the purpose of this paper is to understand the green buying behavior of educated millennials in India. The study also attempts to extend the TPB by including two additional variables, environmental concern (EC) and willingness to pay premium, in the framework.
Design/methodology/approach
Data were collected from 202 students from various departments of an institute of higher education in India. The proposed model was tested with the help of structural equation modeling using bootstrapping procedures in SPSS AMOS 24.
Findings
Except for the direct association between subjective norm (SN) and purchase intention (PI), the study provided support for the TPB framework. EC was found to exert an indirect influence on green PI through its effect on attitude, SN and perceived behavioral control. Willingness to pay premium moderated the relationship of PI with green buying behavior. PIs were found to successfully translate into purchase behavior (PB).
Practical implications
This research by promoting an understanding on the factors affecting the green buying behavior of educated millennials in India will assist green marketers to tap the tremendous potential inherent in this market segment by formulating customized market plans and strategies.
Originality/value
The study extends the existing literature by validating and extending the TPB framework in a unique cultural context and advancing the understanding of underlying psychological mechanisms and boundary conditions of the relationship between PIs and PBs.
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Optimization based bandwidth allocation in mobile cellular networks
No full textEfficient bandwidth allocation strategy with simultaneous fulfillment of QoS requirement of a user in a mobile cellular network is still a critical and an important practical issue. We explore the problem of minimizing the amount of time for which bandwidth has to be allocated in a cell while meeting the QoS constraint. With the knowledge about the the arrival and residence time distribution of a user in a cell, the above problem can be optimally solved using a dynamic programming based approach in polynomial time. To be able to use the solution, we provide a mechanism for constructing the arrival/residence time distribution based on the measurement of hand-off events in a cell. The above solution allows us to propose an optimal time based bandwidth reservation and call admission scheme. By being scalable and distributed, the proposed scheme justifies for practical implementation. Simulations results are also presented to show the effectiveness of the scheme to achieve the target QoS level and optimal bandwidth utilization.Technical report DCS-TR-45
Dynamic QoS Provisioning in Wireless Data Networks
No full textProviding quality of service(QoS) guarantees in mobile data networks is an inherently challenging task. Mobility of users imposes a spatial demand on resources resulting in overloaded regions that are entirely dependent on mobility pattern of users, that is often unpredictable. Prior and ongoing work in this area of QoS relies on call admission control (CAC), or careful resource allocation based on mobility prediction. The latter approach is not scalable, as it requires constant monitoring of the mobility of individual users and per-user state. Furthermore, many of the CAC schemes assume random or uniform mobility patterns, and in most cased are based on local decisions. The challenge is to design a scalable scheme that can provide QoS under distinct mobility patterns.
In contrast to the standard notion of QoS which is based on the handoff dropping probability, another important notion of QoS is based on disallowing handoff drops but minimizing the cell congestion probability that may occur in a given cell. In this paper, we explore this notion of QoS by proposing a dynamic CAC scheme that uses an dynamically estimated mobility pattern and distribution of users in different cells to reach an admission decision with the objective of minimizing cell congestion probability. This scheme does not maintain per user state, and can be implemented in a distributed fashion. From simulation results, we show that across different mobility patterns, the proposed scheme performs better than existing schemes in terms of achieved QoS while providing the minimum level of overall target utilization.Technical report DCS-TR-43
Towards Improving Storage Cost and Security Features of Honeyword Based Approaches
No full textAbstractPassword based authentication shows its vulnerability against inversion attack model in which adversary obtains plaintext password from its corresponding hashed value. To cope up with such attack, honeyword based authentication technique is introduced. In this technique, along with the original password of user, some dummy passwords or honeywords are also stored. Although this technique is good enough to address the aforementioned security breach, but use of additional storage to store the honeywords is still an overhead associated with such approach. In this paper, we have proposed few directions to minimize the storage cost of some of the existing honeyword generation approaches. We have even found that in some cases no additional storage overhead is required. A comparative analysis at the end also shows that the proposed techniques are able to raise some of the security features compared to existing honeyword generation approaches
Undecidable Spaces:: Rethinking Caste and the Technologies of Abandonment in Manoranjan Byapari
No full textOrganization of space in a modern urban locale is apparently secular and unmotivated by any divine or religious principal. Yet it always functions on the basis of exclusion. Simultaneously the dread of the excluded returning to haunt the stability of the city structures its organization of space. In this paper we shall see how the pre-modern system of Casteism has similarities with as well as difference from the modern democratic system of governance across the world and its distinct form of abandonment. It shall also be suggested how abandonment becomes an indispensible technique through which a governmental apparatus comes into existence both in pre-modern Caste Society in Indian subcontinent as well as modern democracy. This work shall focus on Bengali Dalit author Manoranjan Byapari, coming from Namashudra, a Dalit subcaste in Bengal to show how autobiographical form of writing resurfaces the quintessential question of caste pushed back in modern normative arrangement of space
Characterizing Pressure Induced Structural Changes in Glasses and Liquids
No full textabstract: The behaviors of various amorphous materials are characterized at high pressures to deduce phase transitions, coordination changes, densification, and other structural or electronic alterations in the system. Alongside, improvements on high pressure techniques are presented to measure equations of state of glassy materials and probe liquids using in-situ high resolution nuclear magnetic resonance (NMR) spectroscopy. 27Al NMR is used to quantify coordination changes in CaAl2O4 glass pressure cycled to 16 GPa. The structure and coordination environments remain unchanged up to 8 GPa at which 93% of the recovered glass exists as 4-fold Al, whereas the remaining population exists as [5,6]Al. Upon densification, [5,6]Al comprise nearly 30% of observed Al, most likely through the generation of 3-coordinated oxygen. A method to determine the volumetric equation of state of amorphous solids using optical microscopy in a diamond anvil cell is also described. The method relies on two dimensional image acquisition and analysis to quantify changes in the projected image area with compression. The area analysis method is used to determine the compression of cubic crystals, yielding results in good agreement with diffraction and volumetric measurements. A NMR probe capable of reaching 3 GPa is built to understand the nature of magnetic field gradients and improve upon the resolution of high pressure studies conducted in a diamond anvil cell. Field gradients in strength up to 6 G/cm are caused largely by mismatches in the magnetic susceptibility between the sample and gasket, which is proven to shift the chemical shift distribution by use of several different metallic gaskets. Polyamorphic behavior in triphenyl phosphite is studied at pressures up to 0.7 GPa to elucidate the formation of the glacial phase at high pressures. A perceived liquid-liquid phase transition is shown to follow a positive Clapeyron slope, and closely follows the predicted glass transition line up to 0.4 GPa and temperatures below 270 K. A drastic change in morphology is indicative of a transformation from liquid I to liquid II and followed by optical microscopy.Dissertation/ThesisPh.D. Chemistry 201
Machine Design and Vision Based Navigation
No full textThis study covers the design of an autonomous robot and its testing
process on an artificial maize field constructed for an indoor environment.
However, the ultimate goal of this project was to participate in the Field
Robot Event 2014 organized by the University of Hohenheim in Germany.
This project was commissioned by HAMK University of Applied
Sciences. And was fabricated and tested in the automation laboratory of
HAMK UAS valkeakoski.
The test result obtained by plotting the signal from wheel encoder, sonar
sensor, gyroscope, magnetic compass was used as a primary source of information.
Different scientific literature published on four wheel differential
drive and vision based navigation was well examined for background
information. Beside literature, rules and the regulation of the FRE 2014
were used as a source of information as well. In addition to these a working
video on a previous field robot event provided a good reference for
planning and designing an autonomous robot.
A four-wheel differential drive chassis with a suspension system was designed
and fabricated. Sensors such as a magnetic compass, gyroscope,
sonar sensor, wheel encoder and camera were used to sense the environment.
A suitable control algorithm was developed to meet the requirements
of the competition. An indoor test field was designed with the artificial
maize plants made up of paper and plastic tube. This test field was
used to examine the control modules designed for different level. After a
series of testing and tuning, a smooth navigation through row of corn was
achieved. Oscillation was dropped down to nominal level; obstacle was
identified from a safe distance and weed plants was successfully detected.
The findings suggest that the performance of the robot is satisfactory.
However, there are several possibilities for improving it. These include:
replacing a sonar sensor with laser range scanner for detecting maize
plants. Simultaneous localization and mapping can also be introduced. The
author strongly recommends implementing a laser range scanner and stereo
vision in to a future project
