Conflict Resolution Styles of XI Grade students in Delhi: An Experimental Study

The purpose of this study was to investigate the influence of interventions conducted to bring a positive change in conflict resolution styles among students of Class XI. Conflict resolution style was measured by Thomas- Kilmann Mode Instrument. Forty five students of Standard XI participated in the study. A pre-test and post-test experimental design was used. A pre-test was carried out in the beginning of the interventions to determine the conflict resolution style used by participants in their inter-personal conflicts. The interventions, in the form of group activities like removing the blocks in communication, effective usage of non-verbal communication, importance of listening, group discussion on anger management, and inculcation of constructive social skills were conducted. A post-test was carried out to measure the effects of interventions on participants’ conflict resolution styles. Results indicated that the conflict resolution style of the group was modified and transformed into a mature and constructive way of dealing with conflicts. Keywords: Conflict, Conflict Resolution, Conflict Resolution Styles, Communication. DOI: 10.7176/JEP/10-4-0

A Framework for Optimizing the Process of Energy Harvesting from Ambient RF Sources

Energy harvesting has been an active research topic in the past half a decade with respect to wireless networks. We reviewed some of the recent techniques towards improving energy harvesting performance to find that there is a large scope of improvement in terms of optimization and addressing problems pertaining to low-powered communicating mobile nodes. Therefore, we present a framework for identifying available RF sources of energy and constructing a robust link between the energy source and the mobile device. We apply linear optimization approach to enhance the performance of energy harvesting. Probabilility theory is used for identification of event loss in the presence of different number of nodes as well as node distances. The objective of the proposed system is to offer better availability of RF signals as well as better probability of energy harvesting for mobile devices. The proposed technique is also found to be computationally cost effective

Predictive Behavior of a Computational Foot/Ankle Model through Artificial Neural Networks

Computational models are useful tools to study the biomechanics of human joints. Their predictive performance is heavily dependent on bony anatomy and soft tissue properties. Imaging data provides anatomical requirements while approximate tissue properties are implemented from literature data, when available. We sought to improve the predictive capability of a computational foot/ankle model by optimizing its ligament stiffness inputs using feedforward and radial basis function neural networks. While the former demonstrated better performance than the latter per mean square error, both networks provided reasonable stiffness predictions for implementation into the computational model

X-ray Structural Characterization of Charge Delocalization onto the Three Equivalent Benzenoid Rings in Hexamethoxytriptycene Cation Radical

Definitive X-ray crystallographic evidence is obtained for a single hole (or a polaron) to be uniformly distributed on the three equivalent 1,2-dimethoxybenzenoid (or veratrole) rings in the hexamethoxytriptycene cation radical. This conclusion is further supported by electrochemical analysis and by the observation of an intense near-IR transition in its electronic spectrum, as well as by comparison of the spectral and electrochemical characteristics with the model compounds containing one and two dimethoxybenzene rings

Accounting for model error in Tempered Ensemble Transform Particle Filter and its application to non-additive model error

In this paper, we trivially extend Tempered (Localized) Ensemble Transform Particle Filter—T(L)ETPF—to account for model error. We examine T(L)ETPF performance for non-additive model error in a low-dimensional and a high-dimensional test problem. The former one is a nonlinear toy model, where uncertain parameters are non-Gaussian distributed but model error is Gaussian distributed. The latter one is

Parameter estimation for subsurface flow using ensemble data assimilation

Over the years, different data assimilation methods have been implemented to acquire improved estimations of model parameters by adjusting the uncertain parameter values in such a way that the mathematical model approximates the observed data as closely and consistently as possible. However, most of these methods are developed on the assumption of Gaussianity, e.g. Ensemble Kalman Filters, whic

Comparison of regularized ensemble Kalman filter and tempered ensemble transform particle filter for an elliptic inverse problem with uncertain boundary conditions

In this paper, we focus on parameter estimation for an elliptic inverse problem. We consider a 2D steady-state single- phase Darcy flow model, where permeability and boundary conditions are uncertain. Permeability is parameterized by the Karhunen-Loeve expansion and thus assumed to be Gaussian distributed. We employ two ensemble-based data assimilation methods: ensemble Kalman filter and ensemble transf

Conservative limits on the electric charge of Sgr A* in the Reissner-Nordstrom metric

In General Relativity, the gravitational field of an electrically charged, non-rotating, spherically symmetric body is described by the Reissner-Nordstrom (RN) metric. In the naked-singularity regime, a general property of this metric is the existence of a radius, known as the zero-gravity radius, where a test particle would remain at rest. As a consequence of repulsive gravity there is no circular orbit inside this radius. A part of any quasi-stable structure must necessarily lie outside of it. Assuming the compact source Sgr A* at the galactic center may be a naked singularity in RN metric, we provide constraints on the electric charge-to-mass ratio Q/M based on different observations. The compari12 son between the Event Horizon Telescope (EHT) observations and the space-time zero-gravity radius provides the most conservative limit on the charge of Sgr A* to be Q/M < 2.32. Therefore, a charged naked singularity respecting this charge-to-mass constraint is indeed consistent with the current EHT observations.Comment: 6 pages, 3 figure

From \u27Following\u27 to Going Beyond the Textbook: Inservice Indian Mathematics Teachers\u27 Professional Development for Teaching Integers

Abstract :In this paper we describe four Indian in-service middle school mathematics teachers’ shifts in their roles with respect to the textbook. The shifts occurred through participation in collaborative investigation on the topic of integers in professional development meetings. Analysis of teachers’ talk in these meetings indicated a shift in teachers’ role from reliance on textbook to using the knowledge of integer meanings to establish the connections between contexts and representations. We claim that this change in role occurred as a result of teachers developing knowledge of important ideas and representations in the professional development setting and identifying themselves as a member of a professional learning community which values students’ understanding. We argue that since roles are constitutive of teachers’ professional identity, the shifts in roles indicates how teachers’ identity evolved towards being an empowered mathematics teacher who design tasks and responds to students to support articulation of ideas and developing reasoning in mathematics