زاہدہؔ صدیقی(۱۹۴۷ء پ) کا قلمی نام زاہدہؔ ہے۔ آپ برہان پور پسرور میں پیدا ہوئیں۔ آپ معروف شاعر حفیظ صدیقی کی حقیقی بہن ہیں۔ آپ کا ابتدائی کلام ماہنامہ ’’تحریریں‘‘ میں چھپتا رہا۔ آپ ’’تحریریں‘‘ کی مدیر بھی رہیں۔ زاہدہؔ کے دو اردو شعری مجموعے ’’جاگتی آنکھوں کے خواب ‘‘اور ’’دعاؤں کا سائبان‘‘ شائع ہو چکے ہیں۔ اردو کے علاوہ آپ کے دو پنجابی شعری مجموعے بھی طبع ہو چکے ہیں۔(۱۰۳۷)
زاہدہ صدیقی نے اپنی شاعری میں اپنی ذات کو عالمِ نسوانی کے ایک فرد کی علامت کی صورت میں پیش کیا ہے۔ ان کی شاعری اس لحاظ سے بہت خوشگوار ہے کہ انھوں نے اپنی ذات کو اپنے لیے مجلس نہیں بنایا بلکہ اس کی فصیلیں گرادی ہیں۔ اور اپنی شاعری کے ذریعے نوجوان شعرا کو تازہ ہوا اور کھلی دھوپ سے فیض ہو نے کا درس دیا ہے۔ رجائیت ،رومانیت اور عشقِ حقیقی زاہدہؔ کی شاعری کی خصوصیات ہیں ۔ ا س حوالے سے کچھ اشعار ملاحظہ ہوں:
ایک احساس
صبحِ اُمید کی جس کرن کے لیے
ہم سے پہلے بھی کچھ لوگ
تاریک راہوں پہ چلتے رہے
آج ہم بھی
انھی تیرہ و تار راہوں پر چلتے ہوئے
سوچتے ہیں
کہ شاید
کسی روز اپنا مقدر بنے
صبح اُمید کی وہ کرن
جو ابھی تک
نگاہوں سے مستور ہے(۱۰۳۸)
جاگتی آنکھوں کا خواب
زندگی
اک جاگتی آنکھوں کا خواب
خواب جو دیکھا نہ پہچانا گیا
ایک ساعت
آدمی کو اس کے ہونے کا یقین
دوسری ساعت
بکھر جائے فضاؤں میں کہیں
اک دریدہ لباس آوازِ جرس
جیسے اس کی کوئی منزل ہی نہیں (۱۰۳۹)
ترا خیال اُتارے دل و نظر کا غبار
ہر اک بجھی ہوئی صورت نکھر بھی سکتی ہے
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Pseudomonas aeruginosa is a widespread organism, caused severe nosocomial infection in human and associated with multiple drug resistance (MDR)Objective: The present study was carried out to observe current antimicrobial resistant pattern of Pseudomonas aeruginosa in Lahore and to detect the Metallo-beta-lactamase (MBL) gene in carbapenem resistantPseudomonas aeruginosaMethods: By screening 360 samples total 123 Pseudomonas aeruginosa was identified by standard microbiology techniques such as microscopy and biochemical testing. The isolated Pseudomonas aeruginosa was evaluated for drug resistance by disc diffusion method and polymerase chain reaction(PCR) was used to identify the carbapenem resistance causing gene (bla-VIM and bla-IMP) Results: Following antibiotic resistant pattern was observed, Gentamycin (59.00%), Ceftazidime(58.7%), Ceftriaxone (58.00%), Cefotazime (57.0%) and Ciprofloxacin (55.00%). Resistance rates to carbapenem group of antibiotics is Doripenem (30.5%) Meropenem(31.0%) and Imipenem (28.0%). Out of 123 samples of Pseudomonas aeruginosa, 28 isolates were found resistant to carbapenem group of antibiotic which was supposed to be highly sensitive for this bacterium. Molecular based identification of resistance genes showed that bla-IMP gene was present in 32.1% (09) and bla-VIM was found positive in 17.8% (04) samples. Metallo-beta-lactamasesproducing genes (bla-VIM and bla-IMP), amongcarbapenem resistant Pseudomonas aeruginosa were detectedin 28.1% of samples. If other carbapenem resistant gene were also included this number might be higherConclusions: PCRbased test should be included in routine laboratory examination for quick detection of the resistancecausing genes.
(M) x -CuTl-1223; M = Ni, Co, CoFe 2 O 4 , Cr, Al 2 O 3 , nanoparticles-superconductor composites were synthesized by solid-state reaction (ceramic method) and their infield (magnetic) superconducting properties were investigated. Structural, morphological and compositional analysis of these composites were carried by using X-rays diffraction (XRD) analysis, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), respectively. The infield transport measurements were carried out by resistance versus temperature (RT) measurements with small current ( ˷ 10 μA) by using four-probe technique with the help of physical properties measurement system (PPMS). Broadening in superconducting transition region was observed with increasing the external applied magnetic field (H) in all the samples, which was attributed to thermally activated flux flow (TAFF). Flux pinning strength was calculated by using TAFF model. The field dependent flux flow activation energy {U o (H)} of CuTl-1223 superconducting matrix was increased with addition of ferri-magnetic (CoFe 2 O 4 ) and antiferromagnetic (Cr) nanoparticles up to certain optimum level of concentration. The transition width (ΔT) of CuTl-1223 phase was decreased after addition of these nanoparticles. The enhancement in U o (H) and reduction in ΔT show improvement in flux pinning ability of CuTl- 1223 matrix with addition of CoFe 2 O 4 and Cr nanoparticles. The flux pinning strength of CuTl- 1223 phase was decreased with addition of ferromagnetic (Ni and Co) and non-magnetic (Al 2 O 3 ) nanoparticles. It was observed that U o (H) decreases and ΔT increases with the addition of these nanoparticles. The suppression in U o (H) with increasing magnetic field obeys the power law (U o = β H - a ) . The value of ‘a’ corresponds to the suppression rate of U o (H) with H. The decrease in ‘a’ with the addition of Cr, Co, and Al 2 O 3 nanoparticles showed that the decreasing rate of activation energy with increasing H is lowered with addition of these nanoparticles. Thus although the addition of Co and Al 2 O 3 in CuTl-1223 matrix decreases its flux pinning but their addition has lowered the suppression rate of U o (H) with H, which shows that the inclusion of these nanoparticles can make CuTl-1223 superconductor suitable for high field applications. In case of addition of CoFe 2 O 4 and Ni nanoparticles in CuTl-1223 superconductor, value of ‘a’ increases which indicates that lowering rate of activation energy increases with the rise in H. The transition width (ΔT) was increased with the rise in H, which shows TAFF takes place in the samples with small current. It was observed that broadening in ΔT with ‘H’ obeys a power law (ΔT = ΔT o + CH n ) where ΔT o is the transition width in absence of applied field.