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Effects of Thermal Radiation and Induced Magnetic Field on Flow Past a Stretching /Shrinking Sheet

Thesis Info

Author

Takveer Kousar

Supervisor

Zaheer Abbas

Institute

Allama Iqbal Open University

Institute Type

Public

City

Islamabad

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Page

xii, 47.

Subject

Mathematics

Language

English

Other

Call No: 515 TAE; Publisher: Aiou

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676709986877

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ابوالفیض سحر

ابوالفیض سحر
اردو کے ایک اور اچھے شاعر و ادیب اور تحریک کے خاموش مگر سرگرم اور مخلص خدمت گزار جناب ابوالفیض سحر ۲۲؍ جون کی شب میں حرکت قلب بند ہوجانے سے وفات پاگئے اور ۲۳؍ جون کو ۱۱ بجے دن میں بستی حضرت نظام الدین میں واقع قبرستان میں دہلی کے شعرا و ادبا اور متعلقین کی کثیر تعداد کی موجودگی میں سپردخاک کردیے گئے۔
وہ بالکل ٹھیک تھے، انتقال کے روز نوئیڈا میں جناب رفعت سروش کے گھر ایک تقریب میں شرکت کے لیے گئے تھے، شام کو واپس آئے توکچھ بے چینی محسوس کی، رات تک طبیعت زیادہ خراب ہوئی تو اسپتال میں داخل کیے گئے جہاں روح قفس عنصری سے پرواز کرگئی، ان کی صحت بہتر رہتی تھی مگر اس سے پہلے بھی ایک بار دل کا دورہ پڑچکا تھا، یہ دوسرا دورہ جان لیوا ثابت ہوا۔
سحر صاحب مارن پیٹ ضلع محبوب نگر (آندھراپردیش) میں ۱۹؍ فروری ۱۹۳۷؁ء کو ایک متوسط گھرانے میں پیدا ہوئے تھے محبوب نگر ہائی اسکول کے اردو میڈیم اسکول سے میڑک کیا، مزید تعلیم کے لیے حیدرآباد گئے، چادرگھاٹ کالج سے انٹر کیا اور کالج میگزین کے اڈیٹر ہوئے، پھر عثمانیہ یونیورسٹی حیدرآباد کے آرٹس کالج سے بی۔اے کیا، ٹیوشن سے تعلیمی اخراجات پورا کرتے تھے، بی۔اے کرنے کے بعد حیدرآباد کے ایک قدیم اور مشہور اسکول اشرف المدارس میں ٹیچر ہوگئے مگر جلد ہی یہ ملازمت چھوڑ کر ایم۔اے کرنے کے لیے یونیورسٹی میں داخلہ لیا، مجلہ عثمانیہ کے اڈیٹر بھی ہوئے، اسی زمانے میں انہیں ماہر لسانیات پروفیسر مسعود حسین خاں سے تلمذ کا فخر حاصل ہوا، جو سحر صاحب کو ان کے اخلاص اور اردو سے دلچسپی کی بنا پر بہت عزیز رکھتے تھے، باگاریڈی صاحب سے بھی سحر صاحب ان کی اردو دوستی کی وجہ سے بہت قریب ہوگئے تھے، ایم۔اے کرنے...

The Effects of Global Warming: The Case Study of Karachi’s Heat Waves & Its Implication

Our home Earth a beautiful place to live, Allah created earth for his lovable creature but human being is destroying the beautiful earth for his own comfort. And now we're experiencing the consequences, such as rising temperatures. The interaction of rising global temperatures over the nation's land and oceans is known as "Intercontinental weather evolution." Evolution in world’s weather is an outcome of worldwide increase in temperature, and it includes greater temperatures, moisture, precipitation, condensation, and weather systems – along with variations in the occurrence and severity of these variables. It also threatens life on this planet physically and emotional.  Climate change destroying city Karachi too. In 2015 Karachi faced deadly heat wave any around 1200 died. Pakistan’s government take action to control global warming but it's not enough caused a city over 14.91 million (2017), it will need more attention and take action to control the situation of global warming. We can also control consequences of global warming by adopting and reducing few things from our Life otherwise our future will be dark as a black hole in space.

New Homoleptic and Heteroleptic Palladium Ii Dithiocarbamates: Synthesis, Characterization and Anticancer Screening

In the present study, 52 different homoleptic and heteroleptic Pd(II) complexes were synthesized by reacting palladium(II) chloride with substituted triphenylphosphine and sodium salts of dithiocarbamates namely in a mixture of dry solvents. The ligands and various substituted triphenylphosphines used were sodium 4-benzylpiperazine-1-carbodithioate (L-1), sodium 4-diphenylmethylpiperazine-1-carbodithioate (L-2), sodium 4-(2-methoxyphenyl)piperazine-1-carbodithioate (L-3), sodium 4-(3-methoxyphenyl)piperazine-1-carbodithioate (L-4), sodium 4-benzylpiperidine-1-carbodithioate (L-5), sodium 4-(2-pyridyl)piperazine-1-carbodithioate (L-6), sodium 4-(2-pyrimidyl)piperazine-1-carbodithioate (L-7), sodium 4-(2-furoyl) piperazine-1-carbodithioate (L-8), sodium 4,4''-trimethylenedipiperidine-1-carbodithioate (L-9), tris(p-chlorophenyl)phosphine, tri-p-tolylphosphine, diphenyl-p-tolylphosphine, 1,4- bis(diphenylphosphino)butane, and tris(4-flourophenyl)phosphine. The coordination mode of ligands toward Pd(II), structural confirmation and geometry assignment of the complexes were made, using different analytical techniques such as elemental analysis, FT-IR, multinuclear (1H, 13C and 31P) NMR and X-ray single crystal analysis. Based on results, the ligand appeared to coordinate the Pd(II) atom through CSS moiety. The homoleptic and heteroleptic Pd(II) complexes demonstrate perfect square planner and distorted square planer geometries, respectively. The synthesized complexes were screened for in vitro cytotoxic activity against six different cell lines, LU (Lungs cancer cell lines), MCF-7 (mammary adenocarcinoma cell), 1c1c7 (murine hepatoma cells), PC-3 (prostate carcinoma), MDA-231 (estrogen-independent breast cancer cells) and HeLa (cervical carcinoma cell) by the MTT {Tetrazolium [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide} method. The homoleptic Pd(II) was less active whereas heteroleptic Pd(II) complexes composed of bidentate 1,4-bis(diphenylphoshino)butane, flouro and uncoordinated group (carbonyl and nitrogen) was found to be most active against different cancer cell lines as compare to the standard drug (Staurosporine and cisplatine). The interaction of the selected Pd(II) compounds with DNA was investigated by UV-Vis spectroscopy. The hypochromic effect for all the selected Pd(II) complexes was observed, indicating intercalative mode of interaction of these complexes with DNA. The antioxidant activity of selected Pd(II) complexes were evaluated using DPPH as a free radical and Ascorbic acid as a standard. Most of the complexes showed higher antioxidant property than the standard. The selected Pd(II) complexes were also evaluated to check their cytotoxicity and phytotoxicity using brine shrimp assay and seedling growth of maize, respectively. The highest activity was shown by compounds containing oxygenated species (19). Selected complexes were also screened for their antibacterial and antifungal activities against various strains of bacteria and fungi, and were found active.