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المبحث الخامس: زواجها

المبحث الخامس: زواجها
بعدما انتھت نازک الملائکۃ دراستھا في أمریکا عادت إلی بغداد وعینت أستاذۃ مساعدۃ في جامعتھا۔ فأصدرت عدۃ دواوین شعریۃ ونقدیۃ، وبعدہ فترۃ انتقلت من جامعۃ بغداد إلی جامعۃ البصرۃ، ثم تزوجت بالدکتور ’’عبدالھادي محبوبۃ في سنۃ 1962م۔ وزوجھا ھذا کان زمیلھا في جامعۃ بغداد في قسم اللغۃ العربیۃ في کلیۃ التربیۃ وکان عالماً لغویاً وأستاذاً سابقاً بجامعۃ الکویت، تزوجتہ نازک وھي تقرب الاربعین سنۃ من عمرھا۔
وعندما توفي زوجھا كانت ھي أیضاً مریضۃ وکانت مقیمۃ في القاھرۃ ولکنھا لا تعلم بوفاتہ المفاجئة، لأنھا کانت مریضۃ۔ لذلک لم یخبرھا أحد ولم یشأ أحداً نقل (النعي) إلیھا خوفًا من أن یضر بصحتھا، وبعد فترۃ من وفاتہ أخبروھا بأنّہ سافر إلی بغداد، وھي لا تعلم بأنھا الآن وحیدۃ وقد فارقھا رفیق حیاتھا، ویقول إبنھا البراق بأننا أخبرناھا بعد أسابیع من وفاتہ ودفنہ في القاھرۃ ورثتہ في قصیدۃ عنوانھا ’’أنا وحدي‘‘، ویبدو ھذہ آخر قصیدۃ قدمتھا نازک وتم نشرھا قبل وفاتھا۔

Compatibility of Education and Training in the Light of the Seerah of the Holy Prophet

Humankind has been granted a special status due to its being vicegerent of Allah on earth for he has been entrusted with the responsibility to keep order in the world according to the directives of its Creator. Humans are guided by Prophets in history. Some of these Prophets have got greater value, sphere and depth of influence on humanity due to different factors. Muhammad (Peace Be Upon Him) is the last Prophet of Allah, for the eternity and whole humanity. After him, Islam is completed for all times to come. Islam is a complete code of life; education and training constituting its crux. Prophet Muhammad (Peace Be Upon Him) was greatly concerned and cognizant of education and training of his followers which is evident from multifarious events of his life.  Major emphasis was laid on training coupled with education and both are, thus, inevitably interlocked with each other. It is clear that education was considered an assimilation of knowledge and training was taken as its reflection in daily life. The verses of the Holy Quran and sayings of the Holy Prophet (Peace Be Upon Him) bear a perfect testimony to this aspect of foremost significance. The earlier people in the fold of Islam were much concerned about training and nurturing, hence they avoided mere memorization of facts. The present paper is an attempt to discover the compatibility between education and training in the light of the paradigm of secret of the Prophet (Peace Be Upon Him) of Islam.

Delay and Energy Efficient Tdma Based Mac Protocols in Wireless Sensor Networks

Delay and Energy Efficient TDMA Based MAC Protocols in Wireless Sensor Networks Efficient energy consumption in wireless sensors is one of the major constraints in Wireless Sensor Networks (WSNs). Multiple contention-based and contention free Medium Access Control (MAC) protocols are designed to make them energy efficient. Sensor nodes are generally deployed in large number where contention based MAC protocols do not perform well due to increased chances of collision. In such scenario, contention free MAC protocols are preferred over contention based MAC protocols. Performance in terms of energy, delay and throughput are not adequate in most of the WSN applications. In this work, we proposed a couple of bit map assisted TDMA based MAC protocols for hierarchical wireless networks named as BS-MAC and BESTMAC. In addition to this, we suggested a modification in IEEE 802.15.4 standard, which enhances its performance without compromising on existing parameters. Both BS-MAC and BEST-MAC are designed for adaptive traffic flow and the main contribution of both of these protocols is that: (a) it uses small size time slots. (b) the number of those time slots is more than the number of member nodes. (c) Short node address (1 Byte) to identify member nodes. These contributions help to handle adaptive traffic loads of all network members in an efficient manner. In BS-MAC, Shortest Job First algorithm is applied to minimize network delay and to enhance the link utilization. However, in BEST-MAC, Knapsack algorithm is used to schedule time slots in an efficient manner to minimize the network delay and better link utilization. In addition to this, scalability is included to adjust new nodes in the mid of a TDMA round. Simulation results show that both BS-MAC and BEST-MAC perform better than the existing TDMA based MAC protocols. An efficient superframe structure for IEEE 802.15.4 Medium Access Control (MAC) layer is also proposed in this work. In this superframe structure, Contention Free Period (CFP) precedes the Contention Access Period (CAP) and more number of slots are used in the same CFP as of original 802.15.4 standard. The standard operates in three different frequency bands as 868MHz, 915MHz and 2400Mhz. As CFP precedes the x CAP, the communication delay for the CFP traffic is exceptionally reduced. The Beacon frame is fine-tuned to achieve the above said superframe structure and makes it backward compatible with the original standard. Due to large number of small slots in CFP, smaller amount of data requesting nodes can be assigned CFP space for communication. The analytical results show that our proposed superframe structure has nearly 50 % less delay, accommodates almost double the number of nodes in CFP and has better link utilization compared to the original 802.15.4 standard during all three frequency bands.
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