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Organic thin film transistors (OTFTs) were fabricated using pentacene as the active layer with two different gate dielectrics, namely SiO2 and poly(methyl methacrylate) (PMMA), in top contact geometry for comparative studies. OTFTs with SiO 2 as dielectric and gold deposited on the rough side of highly doped silicon (n + -Si) as gate electrode exhibited reasonable field effect mobilities. To deal with poor stability and large leakage currents between source/drain and gate electrodes in these devices, isolated OTFTs with reduced source/drain contact area were fabricated by selective deposition of pentacene on SiO 2/PMMA through shadow mask. This led to almost negligible leakage currents and no degradation in electrical performance even after 14 days of storage under ambient conditions. But, the field effect mobilities obtained were lower than 10 −3 cm 2 V −1 s −1 , whereas by using PMMA as gate dielectric with chromium deposited on the polished side of n + -Si as gate electrode, improved field effect mobilities (>0.02 cm 2 V −1 s −1 ) were obtained. PMMA-based OTFTs also exhibited lower leakage currents and reproducible output characteristics even after 30 days of storage under ambient conditions.

Background: With advancing age, ill-health becomes a major hindrance for the well-being of the elderly. Therefore, not only physical but even psychosocial health is an important predictor for their living happily. Objective was to study the prevalence of various psychosocial problems, including dependence in study population.Methods: A cross sectional study was carried out in geriatric age group in the urban field practice areas of Department of Community Medicine, Saraswathi Institute of Medical Sciences, District-Hapur.Results: Out of 580 elderly the overall prevalence of psychosocial problems was 270 (45.6%). This includes psychosocial disorders in 34.8%, functional dependency in 12.4%, sad attitude towards life in 13.4% and low social adjustment in 8.3%.Conclusions: The psychosocial problems were higher in females as compared to males and were significantly associated with functional dependency, social adjustment and attitude towards life.

Background: As a need to introduce Clinical Pharmacology at the undergraduate level the drug utilization studies (DUS) offer useful methods for teaching and training in drug therapy. The indiscriminate use of medicines results in unwanted side effects, drug interactions. Thus keeping this view in mind, this drug utilization research was set to evaluate the prescribing pattern of analgesics to impart certain basic skills to MBBS students which will form an integral component of practicing rational therapeutics.Methods: The retrospective study was conducted by Pharmacology department in SGRRIM and HS. A total of 726 prescriptions were collected by 2nd professional MBBS students entering 5th semester and randomly evaluated for prescribing pattern using WHO drug use indicators.Results: A total of 726 prescriptions were analyzed. Male:Female ratio was 470:256(1.8:1). Age wise distribution of patients 0-15years 122(16.80%), 16-30 years 139(19.41%), 31-45years 242 (33.33%), 46-60 years 113(15.56%) and >60years 110 (15.15%). A total of 4663 drugs were prescribed. 435(9.32%) were analgesics. 208 (47.81%) Paracetamol, 66 (15.17%) Tramadol, 62(14.25%) Aceclofenac, 51 (11.72%) Diclofenac, 46 (10.57%) Ibuprofen and 2(0.45%) Buprenorphine were prescribed. 301 (69.20%) Oral drugs and 134 (30.80%) Injectable were prescribed. 108 (24.83%) Numbers of Fixed dose combinations. 0.60 of analgesics were prescribed per prescription. 381 (87.59%) analgesics were prescribed from National Essential Medicine list 2015. 369 (84.83%) drugs were prescribed by brand names.Conclusions: The main purpose of undergraduate medical curriculum is to develop the requisite diagnostic and therapeutic skills of a basic doctor. Such type of drug utilization studies is set with the objective to encourage rational prescribing, and to identify good and bad prescribing practices.

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