Promoting Students' Critical Thinking Through Reading Strategy Instruction in a Reading Class

This study examined the application of Reading Strategy Instruction (RSI) in a reading class to promote the critical thinking skills of the second language learners. It aims to find out (1) the critical thinking elements in the questions formulated by the participants before the application of RSI, and (2) the critical thinking elements found in the (a) three selected questions, (b) answers, and (c) reflections written by the participants after the application of RSI. This study included sixteen grade 11 participants of a bilingual school in Jakarta, aged between 16 to 18 years old. The participants underwent two stages (1) before the application of RSI, and (2) after the application of RSI. The RSI applied in this study was a modification of Rothstein & Santana's (2014) “Question Formulation Technique” and Alder's (2001) comprehension strategies in answering questions. The collected data were analysed by using the modified critical thinking indicators proposed by Mason (1991) and Henri (1992). The results of the study revealed that applying RSI in the reading class was beneficial in promoting the participants' critical thinking skills. RSI helped the participants to (i) think differently, (ii) use prior background knowledge, (iii) question the facts given in the text, (iv) identify the issues given in the text, (v) give valid solutions to the problem, (vi) connect themselves with the text and the world, and (vii) justify their arguments using valid examples

Experimental Test of Quantum No-Hiding Theorem

Linearity and unitarity are two fundamental tenets of quantum theory. Any consequence that follows from these must be respected in the quantum world. The no-cloning theorem and the no-deleting theorem are the consequences of the linearity and the unitarity. Together with the stronger no-cloning theorem they provide permanence to quantum information, thus, suggesting that in the quantum world information can neither be created nor be destroyed. In this sense quantum information is robust, but at the same time it is also fragile because any interaction with the environment may lead to loss of information. Recently, another fundamental theorem was proved, namely, the no-hiding theorem that addresses precisely the issue of information loss. It says that if any physical process leads to bleaching of quantum information from the original system, then it must reside in the rest of the universe with no information being hidden in the correlation between these two subsystems. This has applications in quantum teleportation, state randomization, private quantum channels, thermalization and black hole evaporation. Here, we report experimental test of the no-hiding theorem with the technique of nuclear magnetic resonance (NMR). We use the quantum state randomization of a qubit as one example of the bleaching process and show that the missing information can be fully recovered up to local unitary transformations in the ancilla qubits. Since NMR offers a way to test fundamental predictions of quantum theory using coherent control of quantum mechanical nuclear spin states, our experiment is a step forward in this direction.Comment: 12 pages, 6 Figs. Jharana Rani Samal, Deceased on her 27th birthday 12th Nov. 2009. The experimental work of this paper was completely carried out by the first author. We dedicate this paper to the memory of the brilliant soul of Ms. Jharana Rani Samal

Nature-inspired Cuckoo Search Algorithm for Side Lobe Suppression in a Symmetric Linear Antenna Array

In this paper, we proposed a newly modified cuckoo search (MCS) algorithm integrated with the Roulette wheel selection operator and the inertia weight controlling the search ability towards synthesizing symmetric linear array geometry with minimum side lobe level (SLL) and/or nulls control. The basic cuckoo search (CS) algorithm is primarily based on the natural obligate brood parasitic behavior of some cuckoo species in combination with the Levy flight behavior of some birds and fruit flies. The CS metaheuristic approach is straightforward and capable of solving effectively general N-dimensional, linear and nonlinear optimization problems. The array geometry synthesis is first formulated as an optimization problem with the goal of SLL suppression and/or null prescribed placement in certain directions, and then solved by the newly MCS algorithm for the optimum element or isotropic radiator locations in the azimuth-plane or xy-plane. The study also focuses on the four internal parameters of MCS algorithm specifically on their implicit effects in the array synthesis. The optimal inter-element spacing solutions obtained by the MCS-optimizer are validated through comparisons with the standard CS-optimizer and the conventional array within the uniform and the Dolph-Chebyshev envelope patterns using MATLABTM. Finally, we also compared the fine-tuned MCS algorithm with two popular evolutionary algorithm (EA) techniques include particle swarm optimization (PSO) and genetic algorithms (GA)

Group cohesion differentials among low and high achievers of men volleyball players

The purpose of the study was to find out the group cohesion differential among low and high achievers of men volley ball players. The purpose of the study was to compare the group cohesion among senior state level Men Volley ball players. To achieve this purpose of the study forty-eight volleyball players selected as low achievers from income tax, Tamil Nadu Electricity Board, Tuticorin and Central Excise and forty eight volleyball players, selected as high achievers from Indian Overseas Bank, Indian Bank, State Bank and Integral Coach Factory. The subjects were aged between twenty to thirty five years. The investigator distributed group environment questionnaire to measure the group cohesion among the players. Conclusion: There was a significant difference in team involvement between low and high achievers of senior state level men volleyball players. There was no significant difference in personal involvement between low and high achievers of senior state level men volleyball players. There was a significant difference in personal involvement and term involvement among low achievers. There was a significant difference in personal involvement and team involvement among high achievers. There was a significant difference in group cohesion between low and high achievers among senior state level volleyball players, with high achievers indicating better cohesion