مولانا محمد سُورتی ؒ
پچھلے مہینہ کا سب سے اندوہناک علمی حادثہ مولانا محمد سورتی کی وفات ہے، مرحوم اس عہد کے مستثنیٰ دل و دماغ اور حافظہ کے صاحب علم تھے، جہاں تک میری اطلاع ہے اس وقت اتنا وسیع النظر، وسیع المطالعہ، کثیر الحافظہ عالم موجود نہیں، صرف و نحو، لغت و ادب و اخبار و انساب و رجال کے اس زمانہ میں در حقیقت وہ امام تھے، وہ چند ماہ سے مرض استسقا میں مبتلا تھے، علی گڑھ میں ان دنوں قیام تھا اور وہیں ۷؍ اگست کو بروز جمعہ وفات پائی۔
مرحوم کا اصلی وطن سورت (گجرات) تھا، وطن میں ابتدائی تعلیم پاکر یہ دلّی آئے اور رامپور میں مولانا محمد طیب صاحب مکی کا تلمذ حاصل کیا، میری ان کی پہلی ملاقات ۱۹۰۸ء میں ہوئی، جب مولانا طیب مکی رامپور چھوڑ کر دارالعلوم ندوہ لکھنؤ میں ادیب اول کے عہدہ پر فائز تھے، فاضل استاد کے ساتھ یہ لائق شاگرد بھی لکھنؤ وارد ہوا اور اس زمانہ سے لے کر اخیر تک ان کے ساتھ میری علمی رفاقت اور ذاتی دوستی کا سلسلہ قائم رہا، معارف بھی ان کے رشحات قلم سے کبھی کبھی مستفید ہوتا رہا ہے۔
مرحوم اس فضل و کمال کے باوجود ہمیشہ پریشان حال رہے اور کہیں ایک جگہ جم کر بیٹھنا ان کو نصیب نہ ہوا، اس کا نتیجہ یہ ہوا کہ ان کے علم سے استفادہ بہت کم کیا جاسکا اور کوئی کارآمد تصنیف بھی اپنی یادگار نہ چھوڑ سکے اور نہ کوئی لائق شاگرد ہی ان کا قائم مقام ہوسکا، البتہ چند جسمانی اولاد ان کی یادگار ہیں۔
ایک زمانہ میں جامعہ ملیہ دہلی میں معلم رہے، پھر بنارس کے جامعہ رحمانیہ میں مدرس ہوئے، بعد کو بمبئی میں ایک اہلحدیث مدرسہ میں حدیث کا درس دینے لگے تھے، ٹونک کے مشہور کتب خانہ کی...
This study aims to identify the significance of driver’s socioeconomic demographics (SEDs) in the decision to speed and crash involvement. A questionnaire was designed consisting of a driver’s SEDs, speeding propensity, and crash experience. This questionnaire was conducted with the students and employees of the University of Nizwa and other drivers at the selected locations. A total of 604 usable samples were obtained. Simple frequency distribution and discriminant multivariate analysis were conducted on the driver’s responses. Survey results revealed that about 47.7% of the drivers have experienced a crash. The driver’s gender nationality, profession, age, type of vehicle drive, driving experience, and past crash experience are significant attributes of the driver’s speeding behavior. Ordered probit analysis for speeding behavior and simple probit regression analysis for crash involvement was conducted. The male drivers and those who are under the age of 30 years and have driving experience of more than 3 years have more likelihood to exceed the speed limits than other drivers. Similarly, the driver’s gender, age (≤ 30 years), and those who are employees have a significant correlation with the propensity of crash involvement. Male and young drivers have more likelihood to be involved in a crash.
In the present study, a series of tri- and diorganotin(IV) carboxylates have been synthe sized by the reaction of tri- and diorganotin(IV) chlorides/oxides with substituted phenylethanoic acids/salts and α-alkyl cinnamic acids/salts in dry toluene under reflux condition for 8-10 h. The ligands used were 4-Methoxyphenylethanoic acid (HL 1 ), 4- Nitrophenylethanoic acid (HL 2 ), 4-Chlorophenylethanoic acid (HL 3 ), 3-Methylphenyl ethanoic acid (HL 4 ), 3-(4-Bromophenyl)-2-ethylacrylic acid (HL 5 ), 3-(4-Bromophenyl) -2-methylacrylic acid (HL 6 ), 3-(4-Chlorophenyl)-2-methylacrylic acid (HL 7 ), 3-(4- Chlorophenyl)-2-ethylacrylic acid (HL 8 ), 3-(4-Nitrophenyl)-2-methylacrylic acid (HL 9 ) and 3-(4-Nitrophenyl)-2-ethylacrylic acid (HL 10 ). The composition, coordination mode of ligands, structural confirmation and geometry assignment of the complexes in solid and in solution states were made by different analytical techniques such as elemental analysis, FT-IR, multinuclear ( 1 H, 13 C and 119 Sn) NMR, mass spectrometry and X-ray single crystal analysis. Based on these results, the ligand appeared to coordinate the Sn atom via COO moiety. The triorganotin(IV) derivatives demonstrate polymeric trigonal bipyramidal geometry in solid state and a monomeric tetrahedral structure in solution. The diorganotin(IV) dicarboxylates have shown a distorted octahedral or skew- trapezoidal geometry in solid state, however, the coordination around Sn change from six to five in solution, in most cases. The interaction of (n-C 4 H 9 ) 3 Sn(IV)L, (CH 3 ) 3 Sn(IV)L, (n-C 4 H 9 ) 2 (IV)SnL 2 and (C 2 H 5 ) 2 Sn(IV)L 2 (where L = 4-nitrophenylethanoate) with DNA was investigated by cyclic voltammetry (CV). The positive peak potential shift in CV evidenced intercalative mode of interaction of these complexes with DNA. The CV results revealed the following increasing order of binding strength: (C 2 H 5 ) 2 Sn(IV)L 2 (8.5 x 10 3 ) < (n-C 4 H 9 ) 2 Sn(IV)L 2 (1.11 x 10 4 ) < (CH 3 ) 3 Sn(IV)L (1.39 x 10 4 ) < (n- C 4 H 9 ) 3 Sn(IV)L (1.46 x 10 4 ) M -1 . The negative values of ∆G designate the spontaneity of complex-DNA binding. Most of the synthesized complexes were screened for their antibacterial and antifungal activities against various medically important bacteria and fungi. The triorganotin(IV) derivatives have strong bactericidal and fungicidal action than diorganotin(IV) complexes with few exceptions. Some of the compounds were found to have antimicrobial activity comparable or even more than reference drugs and may be used as drugs in future. Some complexes have shown higher cytotoxicity(against iiBrine shrimp) than standard drug while only compound 10 was found stronger anticancer agent against human prostate cell lines(PC-3).