Science is not a basket of facts and principles. It is an ever-growing, ever-expanding and ever-changing body of knowledge. It provides useful methods of exploring the unknown secrets of nature. Because of its distinctive spirit and nature, science demands the learner to be skeptical and challenge it. For several reasons, in the Pakistani middle school science classroom, the teaching-learning standard is not satisfactory. In the middle schools, the expository method is pre-dominantly used by science teachers. This traditional teaching method emphasizes the practice of transmission of information just to meet the needs of the examination system. It ignores the fact that knowledge often emerges from problems and scientific thinking. Therefore, there is a genuine need that current methods and strategies for science teaching should be reversed or modified and more innovative teaching approaches should be introduced in the middle school science classrooms. In relation to teaching for conceptual understanding of primary, middle and secondary school science content, research literature has come up with a wide variety of teaching techniques, methods and approaches, such as problem solving, discovery, investigation, and inquiry. For this study, one of the innovative teaching methods Inquiry Approach' was selected. The Inquiry Approach is a powerful means of seeking deeper understanding in the scientific concepts and it emphasizes process-oriented classroom activity and provides ample opportunities to the children for realizing the process objective of science teaching and learning. The study focused on the possibilities and limitations associated with the use of the Inquiry Approach in Pakistani middle school science classrooms. The study employed a qualitative mode of research and was carried out in one of the private middle schools located in Karachi with two science teachers of different academic background and experience. Interviews and observations were relied on as major data sources. As a result of the qualitative analysis of the data, the study has come up with some findings related to possibilities and limitations associated with the use of the Inquiry Approach. One of the significant possibilities was the positive response to teaching through an Inquiry Approach. The second possibility worth mentioning possibility was the ability to develop knowledge and skills about using Inquiry Approach in the science classroom.
مولوی جنید نعمانی یہ خبر نہایت حسرت و افسوس کے ساتھ سنی جائے گی کہ مولانا شبلی نعمانی مرحوم کے چھوٹے بھائی مولوی جنید صاحب نعانی سب جج کانپور نے دوسال کی صحت و علالت کی کشمکش کے بعد ۱۲؍ اپریل ۱۹۳۳ء کو دہلی میں وفات پائی، مولانا مرحوم کے صرف یہی ایک بھائی تھے جو ان کی وفات کے بعد زندہ تھے، آخر انہوں نے بھی اس دنیا کو الوداع کہا، یہی وہ بھائی تھے جن کی نسبت مولانا نے اپنے بھائی محمد اسحاق صاحب مرحوم الہ آباد ہائی کورٹ کے پر درد نوحہ میں ۱۹۱۴ء میں یہ فرمایا تھا: اے خدا شبلی دلِ خستہ بایں موئے سپید
لے کے آیا ترے درگہِ عالی میں امید مرنے والے کو نجات ابدی کی ہو نوید
خوش و خرم رہے چھوٹا مرا بھائی یہ جنید افسوس کہ یہ بھائی اپنے بڑے بھائی کے بعد اٹھارہ برس سے زیادہ خوش و خرم نہ رہ سکا، دعا ہے کہ مرحوم کو اب آخرت کی ابدی خوشی و خرمی حاصل ہو۔ (سید سلیمان ندوی، مئی ۱۹۳۳ء)
Allama Ghulam Rasool Saeedi was a great Muslim scholar of Pakistan. He served the Muslim Ummah more than 79 years. He taught Quran & sunnah for more than five decades. He made his great research work on Quranic Tafaseer, Hadith literature and Islamic jurisprudence. One of his distinction is his work on difference of opinion with the scholar of past and present also. As we know difference of opinion is the basic component of human nature and instinct. Allama Saeedi worked on this difference in his work in honorable manners and ethics. He tried to minimize the sectarianism. This article aims to discuss the contribution of Allama saeedi in this regard.
User cooperation through relaying is a powerful tool to combat fading and to increase robustness of wireless networks. This thesis explores cooperative schemes for wireless multiple access and multicast channels in the presence of a single dedicated relay. Novel cooperative schemes presented here are based upon relay performing decode-and-forward (DF), noisy network coding (NNC) or a combination of both DF and NNC. The first half of this thesis presents cooperative schemes for a multiple access channel. It considers an uplink non-orthogonal multiple access relay channel (NOMARC) in which multiple users wish to communicate to a single base-station (BS) with the help of a single dedicated relay. Firstly for a two- user setup, we derive the improved achievable rate region by employing NNC-only relaying as opposed to conventional compress-and-forward (CF) relaying. Next, for the multiple user setup, we propose a novel Joint NNC-DF (J-NNC-DF) scheme that utilizes DF cooperation when messages from all user are successfully decoded at the relay and NNC when the relay is unable to decode message of any one of the users. In the scenario when the relay is capable of successfully decoding messages from only a subset of users, J-NNC-DF performs joint DF and NNC encoding with DF applied to the set of messages that were decoded successfully, and NNC for the set of messages that were not decoded successfully. After presenting the achievable rate regions, we derive closed form expression for probability of outage for the proposed schemes. These outage expressions permit selection of optimal quantizer noise variance selection to minimize probability of outage. Both analysis and simulations confirm that the proposed J-NNC-DF scheme outperforms other existing benchmarks such as DF-only, NNC-only and NNC-or-DF. In the second part of this dissertation, we propose a cooperative scheme for a downlink multicast network in which a BS wishes to communicate the same message to multiple users with the help of a single dedicated relay. For this setup, we propose a layered multiplexed-coded decode-and-forward (LMDF) relaying scheme. This scheme comprises of two major components: layering at the BS and mulitplexed DF encoding at the relay. BS message is split into two layers, independentlyencoded and mapped to a quadrature amplitude modulated (QAM) constellation, thus achieving superposition. The benefit of superposition coding of the two layers is that it allows partial message recovery at the relay and the users. On the other hand, multiplexed coding at the relay enables each user to divert all channel resources towards decoding the layer(s) that remains unrecoverable from the BS’s transmission. After deriving achievable rate regions, performance comparison is carried out for the proposed schemes against superposition coded and unlayered BS transmissions. In short, the dissertation proposes, analyzes and simulates J-NNC-DF and LMDF as viable candidates for future generation wireless communication networks.