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| 1 | Homozygosity mapping of a consanguineous Pakistani family affected with oculocutaneous albinism to Tyrosinase gene显示文摘Dear Sir,Iam Haiba Kaul,from the Department of Biochemistry,University of Health Sciences,Lahore,Pakistan.I write to present a study of oculocutaneous albinism(OCA)in consanguineous Pakistani families.OCA is a genetic defect of melanin biosynthesis that mainly affects eyes,skin and hair.It is a congenital condition and | Muhammad Shakil Muhammad Ikram Ullah Shabbir Hussain Sabika Firasat Saqib Mahmood Haiba Kaul | 2016 | International Journal of Ophthalmology(English edition)2016，9，5： | 2 |
| 2 | Outcomes after stenting for malignant large bowel obstruction without radiologist support显示文摘AIM:To assess outcomes after colonic stent insertion for obstructing colorectal malignancies performed by an endoscopist without radiologist support.METHODS:This is a retrospective study of all stents inserted by a single surgeon in a District General Hospital over an eight year period.All stents were inserted for patients with acute large bowel obstruction secondary to a malignant colorectal pathology either for palliation or as a bridge to surgery.Procedures were performed by a single surgeon endoscopically with fluoroscopic control in the X-ray department but withoutthe support of an interventional radiologist.Data was collected prospectively on a pre-designed database.RESULTS:The indication for all stent procedures was an obstructing colorectal malignancy.Out of 53patients,the overall success rate was 90.6%.Eight patients had a stent intended as a bridge to surgery and 45 as a palliative procedure.Technical success was achieved in 50 out of 53 procedures(94.3%)and clinical success in 48 of those remaining 50(96.0%).Those with unsuccessful technical or clinical procedures went on to have defunctioning stomas to treat their obstruction.There were six complications from the technically successful stents(12.0%).These included one migration,one persisting obstructive symptoms and four cases of tumour overgrowth of the stents at a later date.Haemorrhagic complications,perforation or mortality were not observed in our series.Our results are comparable to several other studies assessing stent outcomes for obstructing bowel cancer.CONCLUSION:Our data suggests that colorectal stents can be inserted without radiologist support by an adequately trained individual with good outcomes. | Rao Khalid Mehmood Jody Parker Patricia Kirkbride Shakil Ahmed Fayyaz Akbar Eays Qasem Muhammad Zeeshan Ernest Jehangir | 2014 | World Journal of Gastroenterology2014，20，20： | 1 |
| 3 | Short-term outcome of laparoscopic versus robotic ventral mesh rectopexy for full-thickness rectal prolapse. Is robotic superior?显示文摘 | Rao K. Mehmood Jody Parker L. Bhuvimanian Eyas Qasem Ahmed A. Mohammed Muhammad Zeeshan Kirsten Grugel Paul Carter Shakil Ahmed | 2014 | International Journal of Colorectal Disease2014，，9： | 1 |
| 4 | Texture of the nano-crystalline AlN thin films and the growth conditions in DC magnetron sputtering显示文摘DC reactive magnetron sputtering technique has been used for the preparation of Al N thin fi lms. The deposition temperature and the fl ow ratio of N2/Ar were varied and subsequent dependency of the fi lms crystallites orientation/texture has been addressed. In general, deposited fi lms were found hexagonal polycrystalline with a(002) preferred orientation. The X-ray diffraction(XRD) data revealed that the fi lm crystallinity improves,with the increase of substrate temperature from 300 ℃to 500℃. The dropped in full width half maximum(FWHM) of the XRD rocking curve value further con fi rmed it. However, increasing substrate temperature above 500 ℃or reducing the nitrogen condition(from 60 to 30% in the environment) induced the growth of crystallites with(102) and(103) orientations. The rise of rocking curve FWHM for the corresponding conditions depicted that the fi lms texture quality deteriorated. A further con fi rmation of the variation in fi lm texture/orentation with the growth conditions has been obtained from the variation in FWHM values of a dominant E1(TO) mode in the Fourier transform infrared(FTIR) spectra and the E2(high) mode in Raman spectra. We have correlated the columnar structure in AFM surface analyses with the(002) or c-axis orientation as well. Spectroscopic ellipsometry of the samples have shown a higher refractive index at 500 ℃growth temperature. | Shakil Khan Muhammad Shahid A.Mahmood A.Shah Ishaq Ahmed Mazhar Mehmood U.Aziz Q.Raza M.Alam | 2015 | Progress in Natural Science:Materials International2015，25，4： | 0 |
| 5 | Structural and optical analysis of Cr_2N thin films prepared by DC magnetron sputtering显示文摘Chromium nitride(Cr2N) thin films were prepared by a DC magnetron sputtering technique. The deposition temperature was raised from 50 to 300°C, and its influence on the film structure and refractive index was investigated. X-ray diffraction analysis shows that the crystalline structure of the films transforms from the(101) to(002) oriented hexagonal Cr2 N phase as the increase of substrate temperature above 50°C, and a highly textured film grows at 100°C. An empirical relation between the crystalline orientation and infrared active modes of the films is obtained, i.e., the Fourier transform infrared(FTIR) spectrum of the film prepared at 50°C exhibits only A1(TO) mode. The prominent peak in the FTIR spectra of the film prepared above 50°C is assigned to the E1(TO) mode and is correlated with the(002) or c-axis oriented hexagonal wurtzite phase of Cr2 N. In the surface analysis of atomic force microscopy, a transformation from the featureless surface to columnar-type morphology is observed with the increase of substrate temperature from 50 to 100°C, exhibiting c-axis oriented crystallite growth. A further increase in substrate temperature to 200°C causes the c-axis crystallites to merge, resulting in the formation of voids. The refractive index(n) of the deposited films is obtained using spectroscopic ellipsometry. | Shakil Khan A.Mahmood A.Shah Qaiser Raza Muhammad Asim Rasheed Ishaq Ahmad | 2015 | International Journal of Minerals,Metallurgy and Materials2015，22，2： | 0 |
| 6 | First-principles calculation of the structural,electronic,and magnetic properties of cubic perovskite RbXF3(X = Mn,V,Co,Fe)显示文摘First-principles calculations by means of the full-potential linearized augmented plane wave method using the generalized gradient approximation with correlation effect correction(GGA+U) within the framework of spin polarized density functional theory(DFT+U) are used to study the structural,electronic,and magnetic properties of cubic perovskite compounds RbXF_3(X = Mn,V,Co,and Fe).It is found that the calculated structural parameters,i.e.,lattice constant,bulk modulus,and its pressure derivative are in good agreement with the previous results.Our results reveal that the strong spin polarization of the 3d states of the X atoms is the origin of ferromagnetism in RbXF_3.Cohesive energies and the magnetic moments of RbXF_3 have also been calculated.The calculated electronic properties show the half-metallic nature of RbCoF_3 and RbFeF_3,making these materials suitable for spintronic applications. | Muhammad Raza ur rehman Hashmi Muhammad Zafar M Shakil Atif Sattar Shabbir Ahmed S A Ahmad | 2016 | Chinese Physics B2016，25，11： | 0 |
| 7 | In vivo study of gold-nanoparticles using different extracts for kidney, liver function and photocatalytic application显示文摘We report novel gold nanoparticles by green method for different fruit extracts have gaining greater attention due to its versatile properties in different applications. In this article, GNPs synthesis is demonstrated successfully using fresh fruit extract of punica granatum and fragaria. The optical properties, morphology and elemental analysis of samples was done by using) different characterization techniques like SEM EDX and UV-Visible spectroscopy Biocompatibility of GNPs was determined by ALT, AST, ALP, Urea, Creatinine tests and also to investigate the effects of prepared GNPs on the kidney and liver functions. The GNPs prepared by fruit extract of punica granatum have more effects on the rabbits than GNPs prepared from fragaria but this effect normalizes after three days which shows its biocompatibility. To explore the photocatalytic activity of the GNPs the photocatalytic degradation of MB dye is also investigated. The results revealed that GNPs prepared through green synthesis route are found to be efficient enhancement in the degradation of MB dye in visible region due to large surface area. These particles were more active in catalytic reduction due to their high surface energy and in bio-medical applications as biocompatibility. | Muhammad Isa Khan Seemab Dildar Tahir Iqbal Muhammad Shakil Muhammad Bilal Tahir Muhammad Rafique Farooq Aziz Sardar Bibi Mohsin Ijaz | 2019 | Chemical Reports2019，1，1： | 0 |
| 8 | Theoretical calculations of structural, electronic, and elastic properties of CdSe_(1-x)Te_x:A first principles study显示文摘The plane wave pseudo-potential method was used to investigate the structural, electronic, and elastic properties of Cd Se_(1-x)Te_x in the zinc blende phase. It is observed that the electronic properties are improved considerably by using LDA + U as compared to the LDA approach. The calculated lattice constants and bulk moduli are also comparable to the experimental results. The cohesive energies for pure Cd Se and Cd Te binary and their mixed alloys are calculated. The second-order elastic constants are also calculated by the Lagrangian theory of elasticity. The elastic properties show that the studied material has a ductile nature. | M Shakil Muhammad Zafar Shabbir Ahmed Muhammad Raza-ur-rehman Hashmi M A Choudhary T Iqbal | 2016 | Chinese Physics B2016，25，7： | 0 |
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