Javaeed A.,Fatima Memorial Hospital |
Shah W.,KMU |
Akhtar R.,FMMC |
Ghauri S.K.,AKUH |
And 2 more authors.
Medical Forum Monthly | Year: 2015
Objective: The objective of this study was to assess the diagnostic accuracy of most widely used serological test for diagnosis of celiac disease (CD) i.e..anti-tissue transglutaminase antibody (IgA) in comparison to histopathological lesions jn CD. Study Design: cross sectional study Place and Duration of Study: This study was carried out at the Departments of Gastroenterology and Pathology of Fatima Memorial Hospital, Shadman, Lahore from March 2014 to October 2014. Materials and Methods: 121 patients clinically suspected of celiac disease were included in this cross sectional study. The biopsy was taken from the second part of duodenum and was evaluated according to Marsh classification of CD. Blood sample of every patient was obtained to perform anti-tTG antibody test. Results: The range of the patients included in the study came out to be 18-65 years with 30.24 years as mean age. Out of all the patients included in this study 34 (28.1%) were males and 87(71.9%) were females. The overall sensitivity and specificity of anti-tTG were 78.6% and 98.1%.The positive predictive value (PPV) and negative predictive value (NPV) came out to be 84.6% and 97.2% respectively. Conclusion: We have come to the conclusion that currently there is no serological test which can be used as a sole tool for the diagnosis of celiac disease. Relying on serological test will lead to missed diagnosis of CD especially those patients which have Marsh lesions of lesser degrees.
Havare A.K.,Mersin University |
Can M.,Izmir Katip Celebi University |
Tozlu C.,KMU |
Kus M.,Selcuk University |
And 5 more authors.
Optical Materials | Year: 2016
A carboxylic group functioned charge transporting was synthesized and self-assembled on an indium tin oxide (ITO) anode. A typical electroluminescent device [modified ITO/TPD (50 nm)/Alq3 (60 nm)/LiF (2 nm)/(120 nm)] was fabricated to investigate the effect of the amino groups-small molecules interface on the characteristics of the device. The increase in the surface work function of ITO is expected to facilitate the hole injection from the ITO anode to the Hole Transport Layer (HTL) in electroluminescence. The modified electroluminescent device could endure a higher current and showed a much higher luminance than the nonmodified one. For the produced electroluminescent devices, the I-V characteristics, optical characterization and quantum yields were performed. The external quantum efficiency of the modified electroluminescent device is improved as the result of the presence of the amino groups-small molecules interface. © 2016 Elsevier B.V.
Dermitzakis K.,AILab |
Ioannides A.,ETH Zurich |
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS | Year: 2013
With the thumb serving an important role in the function of the human hand, improving robotic prosthetic thumb functionality will have a direct impact on the prosthesis itself. So far, no significant work exists that examines the ranges of motion a prosthetic thumb should exhibit; many myoelectric prostheses arbitrarily select them. We question this design practice as we expect a significant functional volume reduction for performing certain activities vs. the maximum obtainable workspace. To this end, we compare and contrast four anatomically-accurate thumb models. We quantify their angular ranges of motion by generating point clouds of end-effector positions, and by computing their alpha-shape bounded volumes. Examining the function of the thumb for several grasps, we identify a 76% reduction of the required workspace volume vis-a-vis the maximum volume of a ''generic'' human thumb. © 2013 IEEE.
Farzooq A.,Institute of Medical science ENT |
Nasir M.,District Head Quarter Hospital |
Muhammad W.,Health Ways Hospital |
Pakistan Journal of Medical and Health Sciences | Year: 2015
Aim: To assess the frequency of Hodgkin Lymphoma in patients presenting with cervical Lymphadenopathy. Methods: This is a prospective study conducted at District Head Quarter Teaching Hospital Kohat, between January 2012 to December 2014. The data was collected for all patients presenting with cervical lymphadenopathy during the above mentioned period. All the patients with cervical lymphadenopathy were subjected to detailed history, clinical examination, investigations and histopathological examination. Results: Out of 248 patients presenting with cervical lymphadenopathy, 19 patients were found to be having Hodgkin's lymphoma. The gender distribution was predominantly male making up about 72%. About 50% patients had mixed cellularity whereas about 37.5% patients had nodular sclerosis. Conclusion: The proportion of Hodgkin's lymphoma in cervical lymphadenopathy is relatively low in our population as compared to the western world.
Yin J.L.,Shanghai JiaoTong University |
Wang D.Z.,Shanghai JiaoTong University |
Kim Y.-T.,Korea University |
Renewable Energy | Year: 2014
In this paper, a micro-hybrid energy storage system, for a small power grid, which combines the concepts of pump storage plant (PSP) and compressed air energy storage (CAES), is proposed. There are two tanks, one open to the air and one subjected to compressed air, as well as a micro-pump turbine (MPT) in the hybrid system. The basic principle is that the MPT utilizes excess power from the grid to pump the water, which in turn compresses the air, and in this way, the energy is changed into internal energy of air. The energy in the air will be released to drive water passing through the MPT to generate power when the supply of power from the grid is insufficient. To validate the above proposal, such a micro-system was designed considering geometrical and operational conditions. Due to the large head variation for MPT, a variable speed machine  was designed by means of an inverse design method. After geometrical modeling and mesh generation for the complete configuration of the MPT, which consists of spiral casing, tandem, runner and draft tube, CFD simulations of typical operating points during pump mode and turbine mode were implemented. Special treatments of boundary conditions induced by the air compression or decompression were applied in the simulation. This energy storage system shows promising potential for application as the results indicated that the performance of the system and MPT was comparable. © 2013 Elsevier Ltd.