Assam Don Bosco University Journals
Not a member yet
795 research outputs found
Sort by
Conceptual and Methodological Problems in a Study of Tribal Movements
Full text linkThe article examines the conceptual ambiguities and problems of categorisation associated with tribal studies. It discusses the methodological concerns in tribal studies both from etic and emic perspectives. The dilemmas surrounding the various concepts used to categorise the tribes or indigenous peoples are another features of the article. The scarce or complete absence of empirical evidence in some of the tribal communities has rendered an emic perspective to a position open to the question of subjectivity. It is observed that in their attempt to salvage their place in human history or history of their right to self-determination, certain events were examined from conflicting perspectives with an attempt to reorient the history in favour of their own tribes. Certain concepts that do not conform to the events described are employed in categorising the movements. The conceptual and methodological problems in tribal studies are then followed by studies of movements and their significance in tribal studies. Reiterating the conceptual difference and the political implications of the difference between the concepts ‘tribe’ and ‘indigenous’, the article examines the intricacies related to various movements in tribal areas and the methodological problem in placing them in either of tribal movement or indigenous movement
Towards a Theory of Tribal Social Work: Some Reflections on its Methodological Foundation
Full text linkThis paper engages with the theoretical evolution of Tribal Social Work in India, and attempts to provide a conceptual overview of some key constitutive elements of its methodological foundation. It uses the historical approach to trace the politico historical processes beginning 1935 and lays a framework that brings to bear significant processes that went into shaping meanings of categories and frames of reference vis-à -vis tribes. While unraveling varied processes surrounding the tribal debate in India from a critical perspective, the article posits a theoretico-methodological outline of tribal social work sourced from the author’s own experiences. This is done with the intention of advancing the theory of tribal social work within the Indian context and thus deepening and enriching social work discipline further
Heavy Metal Ion Sensing By Surface Plasmon Resonance on Gold Nanoparticles
Full text linkSurface Plasmon resonance (SPR) based heavy metal ions sensor is one of the most sensitive sensor for detecting toxic metal ions. It is an inexpensive, portable and also feasible for real time detection. SPR sensor is a type of optical sensor in which toxic metal ions get adsorbed on the functionalized metal (mostly Au) film causes the change in refractive index of the metal (Au)-dielectric (sensing) medium. The change of the refractive index leads to a shift in the angular spectrum of the reflected light and can be accurately monitored by optical methods. In this paper,we are trying to optimize the detection level of heavy metal ions by surface plasmon resonance on gold nanoparticles using UV-VIS spectroscopy. Polymer like chitosan is being used with gold nanoparticles to detect copper and zinc ions and detection till very low concentrations of the toxic metal ions is obtained.Keywords: Surface Plasmon Resonance, Optical sensor, metal nanoparticles, reducing agent,chelating agent, polymer capping.*Cite as: Sandhya Banti Dutta Borah, Sunandan Baruah, Waleed Soliman Joydeep Dutta “Heavy Metal Ion Sensing By Surface Plasmon Resonance On Gold Nanoparticles†ADBU-J.Engg Tech, 1(2014) 0011404(5pp
Design of a PD like Fuzzy Logic Controller for Precise Positioning of a Stepper Motor
Full text linkDesigning of controllers for control of various motors has been an exciting field for the researchers. Talking of controllers, PID controllers are the most popular among the various industries. Nowadays Fuzzy Logic Controllers (FLC) and PID like FLCs are very famous due to its robust design, faster response and accuracy. In this paper we have proposed a novel method to control a stepper motor with PD like FLC that can handle one sided errors like those in tracking problem such as tracking the Sun and maximum power point in PV array system. During simulation it is seen that the controller can easily handle different errors without much of oscillations. The speed of response mainly depends on the step size of the stepper motor.Keywords: Tracking problem, PD like Fuzzy Logic Controller, Stepper motor control. Matlab/Simulink, Fuzzy Logic toolbox.*Cite as: Jyoti Kumar Barman, Pushpanjalee Konwar, Gitu Das, “Design of a PD like Fuzzy Logic Controller for Precise Positioning of a Stepper Motor†ADBU J.Engg.Tech., 1(2014) 0011407(4pp
Social Work Education and the Tribal/Indigenous peoples of India’s northeast
Full text linkSocial work as a profession has evolved out of contextualised human responses to social, political and economic questions that afflict human existence. Its education and practice in India, imported from the west as a part of the colonisation process, has remained stagnated, for long, with concepts and methods suited to respond to the ravages of industrial revolution in Europe. Thus, it has failed, in many ways than one, to position itself responsively to India’s contexts. The tribal/indigenous situation of India’s northeast, for instance, challenge social work education and practice to define programmes and strategies, respectively, suited to meet its unique needs. The present paper is an attempt to conceptualise a social work education framework suited to this context