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Home > Isolation and Characterization of Toxic Protein Components from Some Selected Coelentrate, Molluscs and Sea~Snakes of Karachi Coast

Isolation and Characterization of Toxic Protein Components from Some Selected Coelentrate, Molluscs and Sea~Snakes of Karachi Coast

Thesis Info

Access Option

External Link

Author

Junaid Mahmood Alam

Program

PhD

Institute

University of Karachi

City

Karachi

Province

Sindh

Country

Pakistan

Thesis Completing Year

1995

Thesis Completion Status

Completed

Subject

Natural Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/4514/1/943.pdf

Added

2021-02-17 19:49:13

Modified

2023-01-07 20:27:05

ARI ID

1676726534870

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ڈاکٹر میر ولی الدین

ڈاکٹر میرولی الدین
حیدرآباد کی ایک اطلاع سے یہ معلوم کرکے بہت افسوس ہواکہ ڈاکٹر میرولی الدین صاحب کاانتقال ہوگیا۔ مرحوم کی عمر۸۰کے لگ بھگ ہوگی۔ان کا مرتبہ انڈوپاک کے مصنفین میں بہت بلند تھا۔ دراصل ان کا مضمون فلسفہ تھا جس کے پروفیسر اورصدرشعبہ وہ ایک عرصہ تک جامعہ عثمانیہ میں رہے اوروہیں سے سبکدوش ہوئے۔ لیکن تصوف کے ساتھ ان کو بڑاگہرالگاؤ تھا علمی اور نظری اعتبار سے نہایت وسیع المطالعہ ہونے کے ساتھ وہ عملاً بھی ایک بلندپایہ صوفی تھے۔ایک مرتبہ کلکتہ میں ایک ہفتہ تک وہ راقم الحروف کے مہمان رہے تواس مدت میں کوئی ایک دن بھی ایسا نہیں تھا جب کہ وہ تہجد کے لیے بیدار نہ ہوئے ہوں اور نمازکے بعد صلاۃ فجر تک اوراد و وظائف میں مشغول نہ رہے ہوں۔ انھوں نے انگریزی اوراردو تصنیفات وتالیفات کاایک عظیم ذخیرہ چھوڑاہے۔ان میں سے ہرتصنیف ایک سے ایک بڑھ کر ہے۔ندوۃ المصنفین اوراس کے ارکان کے ساتھ ان کو بڑا مخلصانہ اورمشفقانہ تعلق تھا چنانچہ اس ادارے میں ان کی متعدد کتابیں چھپی ہیں اور مقبول عام وخاص ہوئی ہیں۔ادھر کئی سال سے وہ بے حد کمزور اورضعیف ہوکر خانہ نشین ہوگئے تھے مگر تصنیف وتالیف کامشغلہ پھربھی جاری تھا۔ اﷲ تعالیٰ ان کے مراتب ومدارج بڑھائے اوران کوجنت الفردوس نصیب ہو۔ [دسمبر۱۹۷۵ء]

 

صدقات جمع کرنے پر ریاستی پابندی کا اختیار پنجاب چیرٹیز ایکٹ 2018ء کے تناظرمیں تحقیقی مطالعہ

Early in 2018, Punjab Assembly passed a law in order to regulate welfare organizations and institutions. All welfare institutions were made bound to a complex official procedure. Violation of this procedure was regarded as a punishable crime. This law was widely discussed in think tanks and was strongly criticized. This research paper deals with understanding of this law, basic sections and their Islamic prespective is analysed according to Sharia. It has been proved in the light of Quran and Sunnah that Islam doesn't permit making non-obligatory charities system so complex and regarding it a crime. Hence, Government should make appropriate reforms in this law while reviewing it.

Transport and Gas Sensing Properties of Cadmium Titanate Nanofibers

In this work AC & DC transport and sensing properties of cadmium titanate (CdTiO3) nanofibers have been investigated. Study of AC transport properties were explored using temperature dependent impedance spectroscopy. DC transport measurements were carried out using temperature dependent current-voltage (I-V) characterization. Cadmium titanate/polyvinyl-pyrrolidone composite nanofibers were prepared using an electrospinning technique. When temperature increased from 600 °C to 1200 °C the phase changes in CdTiO3 nanofibers were observed. The nanofibers annealed at 600 °C had ilmenite phase with a very small amount of CdO. Pure ilmenite phase was obtained at 950 °C. Annealing at 1000 °C yielded pure perovskite phase. Further increase in annealing temperature resulted in rutile TiO2 phase. The average diameters of nanofibers annealed at 600 °C and 1000 °C were found to be ~150 nm and ~600 nm, respectively. The length of nanofibers was ~100 μm. Analysis of frequency dependent AC conductivity in ilmenite phase revealed correlated barrier hoping (CBH) conduction from 318 K – 498 K. In perovskite phase, thermally activated small polaron hopping (SPH) conduction played dominant role from 320 K – 420 K. In DC transport, Ohmic behavior was observed at low voltages followed by space charge limited current (SCLC) with traps at higher voltages at all temperatures (200 K – 420 K). Humidity sensing characteristics of ilmenite phase were investigated. Fast response time and recovery time of 4 seconds and 6 seconds was observed, respectively. The sensor was highly sensitive and showed a reversible response with small hysteresis of less than 7%. Long term stability of the sensor was confirmed during 30 days test. Oxygen sensing using ilmenite and perovskite phase CdTiO3 nanofibers was also performed. The gas response of the ilmenite nanofibers sensor to oxygen gas was twice as high as that of the perovskite phase. The response and recovery times were 120 seconds and 23 seconds, respectively for ilmenite phase, whereas response and recovery times were 156 seconds and 50 seconds, respectively for the perovskite phase. Better oxygen sensing characteristics of ilmenite phase were attributed to large surface area ~9.41 m2/g and porosity.