پروفیسر محمد عمرالدین
افسوس ہے پچھلے دنوں پروفیسر محمد عمر الدین کا ۶۲ برس کی عمر میں انتقال علی گڑھ میں ہوگیا،اوریہیں دفن ہوئے۔ مرحوم علی گڑھ یونیورسٹی میں ۲۴ء میں داخل ہوئے تھے، اُس وقت سے دمِ آخرتک اُن کا رشتہ اس درس گاہ سے منقطع نہیں ہوا۔ انھوں نے تعلیم یہیں مکمل کی، پھر یہیں لکچرر، ریڈر، پروفیسر اورصدر شعبۂ فلاسفی ونفسیات، وارڈن، اور پروووسٹ اورخداجانے کیاکیا ہوئے۔انھوں نے یونیورسٹی میں بڑے بڑے اتار چڑھاؤ اورانقلابات دیکھے تھے،اوراب آخر میں خود انقلاباتِ زمانہ کی عبرت انگیز تصویربن کررہ گئے تھے۔اسلامی فلسفہ اُن کا خاص مضمون تھا، امام غزالی ؒ کے فلسفۂ اخلاق پرانگریزی میں اُن کی ضخیم کتاب چند سال ہوئے یونیورسٹی کی طرف سے شائع ہوئی ہے۔بلاکے ذہین، بہترین منتظم،بے نفس وبے ریا، مجّسم خلوص، پیکرِ وضع داری، اور نہایت سادہ اوربے تکلّف! راقم الحروف سے دیرینہ اور بڑے مخلصانہ تعلقات تھے، یونیورسٹی سے ملازمت کے تعلق کے اعتبارسے مرحوم اس چمن کی پرانی بہار کی آخری نشانی تھے۔ ’’خدا بخشے بہت سی خوبیاں تھیں مرنے والے میں‘‘۔ [ستمبر ۱۹۶۴ء]
Gender roles not only keep men and women in different spheres of family and social life but they also promote gender segregation in the education sector and professional life. There is a lot of research being conducted on women working in male dominated professions but there is scarcity of research regarding males working in female dominated professions. This study was conducted to explore the experiences of men working in female dominated professions. The first phase of this study collected quantitative data about the type female-dominated professions in Pakistan. Based on this data in-depth qualitative interviews were done with 5 professionals using snowball sampling: Nurse, Psychologist, Montessori teacher, Makeup artist/ Beautician, and Bus host. Thematic analysis was used to identify sub-themes presented in this study: (i) Reasons or motivation for joining nontraditional profession; (ii) Reaction of near and dear ones; (iii) Positive aspects of female dominated profession; (iv) Challenges of female dominated profession; (v) Professional journey; (vi) Being a minority in female majority; (vii) Struggle to maintain masculinity and (viii) Future aspirations. Study findings can be used to support male entry and retention in female dominated professions.
This thesis covers two topics of latest research in the field of nanotechnology. One topic covers the development of nanomaterials for spintronic devices and the other one is about degradation of organic dye using various semiconductor photocatalysts. The aim of this thesis is to investigate and explore the physics behind TM on different applications in the field of spintronics and photocatalysis. The role of rare earth, Gadolinium (Gd) concentration on magnetization behavior is studied at length in rare earth doped transition-metal (RE:TM) thin films. RE:TM alloys of composition GdxCo100-x, GdxFe100-x and Gdx(Co50Fe50)100-x (30 nm each) deposited on silicon substrates were prepared by magnetron sputtering, where x ranged from 4 to 13 atomic%. The magnetization, uniaxial anisotropy, coercivity and Kerr rotation were investigated as a function of composition. It was found that ferrimagnetism in Gd doped transition metals alloys is considerably influenced by varying concentration of Gd content. At the same time, the magnetic easy axis remains in the film plane whereas the coercivity is strongly reduced after Gd substitution in case of GdxFe100-x and Gdx(Co50Fe50)100-x thin films. Results reveal that RE:TM thin films with dilute Gd doping of up to 8% are promising building block in soft magnetic devices for spin-transfer-torque applications, where an enhanced damping is required. Second topic presents a comprehensive study on degradation of organic dye using metal sulfide nanoparticles. In this research, a series of metal sulfide nanoparticles, such as zinc sulfide (ZnS), cadmium sulfide (CdS) and transition metal ions (Ni, Co, Fe) doped ZnS and CdS nanoparticles were developed through facile co-precipitation method using 2-mercaptoethanol as a surfactant for evaluation of their catalytic and photocatalytic activity potential. The synthesized nano powders were characterized using various analytical chemistry as well as image visualizing techniques like, X-ray diffraction (XRD), field emission spectroscopy (FESEM), energy dispersive spectroscopy (EDX), transmission electron microscopy (TEM), Raman spectroscopy, UV-Vis spectroscopy to elucidate the changes in structure and shape of nanomaterials. Photocatalytic activity experiments show that doped nanoparticles bleach out methylene blue effectively than undoped samples. This research also highlights effect of prepared nanoparticles in degradation of methylene blue by catalytic agent NaBH4. The research at its present stage of development appears to offer the best avenue to remove hazardous pollutants from water. Without additional chemicals and energy input, this technique can be employed in large-scale water treatment technology, which will have a significant impact on the water purification industry.