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Search Results: 1 - 10 of 4162 matches for " Khalid Saeed "
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COMPLICATIONS OF DOUBLE-STENTS
Khalid Muhammad Saeed
The Professional Medical Journal , 1998,
Abstract: To study the changes in urothelium due to double-j-stents, an animal model was prepared. A piece of .thedouble-j-stent was placed inside the urinary bladder of mice to study the extent of tissue reaction. Theexperiments were done on a total of 50 rats, divided into Experimental and Control group. Each groupcomprised 25 rats. The control group underwent Sham's operation. In the experimental group, a 2mm longpiece of double-j-sent was placed in the urinary bladder was closed. After six weeks all the rats weresacrificed. The piece of stent was removed for culture and cystectomy was done to see the gross andmicroscopic changes.
EXTRACORPOREAL SHOCKWAVE LITHOTRIPSY (ESWL)
Khalid M. Saeed
The Professional Medical Journal , 1998,
Abstract: One hundred patients of both sexes between the age of 18-50 years suffering from radio opaque renal stones(1.5-2.5 cm) with functioning kidney were included in the study.The patients were randomly divided into two groups, Group-I (50 patients of kidney stones who were treatedwith ESWL, with 6 Fr. double-j-stent) and Group-II (50 patients who had ESWL, without double-j-stent).Patients were followed-up till they became stone free. There was no statistical significant difference in theclearance time (3.4 and 3.5 months) and clearance rate (68.75% and 72.91%) after three months in stentedand control groups respectively. The complications like bladder discomfort, renal pain pyuria. bactiuria weresignificant in the stented group, while microscopic haematuria was observed in all patients in both groups.Persistent pyrexia was observed in 14.3% patients in stented group, however, it was transient and subsidedwithout any medication in non-stented group. The mean hospital stay was 5.6 and 3.7 days in Group-I andGroup-11 respectively. Steinstrasse was observed in 12% and 16% in stented and non-stent groups. Fivepatients (10%) of non-stented group required auxiliary procedures. Mean stone size in these patients was2.2 cm. Auxiliary procedure was not required in Group-1. It is concluded that patients with 2 cm stones ormore are suitable for double-j-stenting before ESWL.
Acral osteolysis in bilateral compartment syndrome
Sameer Khalid Khan,Iram Saeed
Journal of Radiology Case Reports , 2008, DOI: 10.3941/jrcr.v2i2.36
Abstract: Carpal tunnel syndrome is a common neurological condition with rare yet potentially serious cutaneous and skeletal complications. We present a case of mutilating/ulcerating bilateral carpal tunnel syndrome in a 63 year old female. Radiographs showed symmetrical acral osteolysis in the index and middle fingers distal phalanges bilaterally. Carpal tunnel decompressions provided symptomatic relief.
The thermoanalytical, infrared and pyrolysis-gas chromatography-mass spectrometric sifting of poly (methyl methacrylate) in the presence of phosphorus tribromide  [PDF]
Muhammad Arshad, Khalid Masud, Muhammad Arif, Saeed-ur Rehman, Jamshed H. Zaidi, Muhammad Arif, Aamer Saeed, Tariq Yasin
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.24039
Abstract: The behaviour of poly(methyl methacrylate) was examined in the presence of phosphorus tri-bromide (PBr3) with varying concentrations. Films were cast from common solvent and subjected to TG, DTA, DTG, IR and Py-GC-MS for evaluating the degradation routes. Despite early decomposition of the blends, certain tempera-ture zones were identified for stabilization of the system. New products were found and mecha-nisms of their formation were proposed. Pyro-lysis of the blends was also carried out at dif-ferent temperatures to ascertain the nature of interaction between the constituents of the system.
Application of Scale Relativity (ScR) Theory to the Problem of a Particle in a Finite One-Dimensional Square Well (FODSW) Potential  [PDF]
Saeed N. T Al-Rashid, Mohammed A. Z Habeeb, Khalid A Ahmad
Journal of Quantum Information Science (JQIS) , 2011, DOI: 10.4236/jqis.2011.11002
Abstract: In the present work, and along the lines of Hermann, ScR theory is applied to a finite one-dimensional square well potential problem. The aim is to show that scale relativity theory can reproduce quantum mechanical results without employing the Schrödinger equation. Some mathematical difficulties that arise when obtaining the solution to this problem were overcome by utilizing a novel mathematical connection between ScR theory and the well-known Riccati equation. Computer programs were written using the standard MATLAB 7 code to numerically simulate the behavior of the quantum particle in the above potential utilizing the solutions of the fractal equations of motion obtained from ScR theory. Several attempts were made to fix some of the parameters in the numerical simulations to obtain the best possible results in a practical computer CPU time within limited local computer facilities [1,2]. Comparison of the present results with the corresponding results obtained from conventional quantum mechanics by solving the Schrödinger equation, shows very good agreement. This agreement was improved further by optimizing the parameters used in the numerical simulations [1,3]. This represents a new example where scale relativity theory, based on a fractal space-time concept, can accurately reproduce quantum mechanical results without invoking the Schrödinger equation.
Prevelance of total coliforms, faecal coliforms and E. coli in Rawalpindi vegetable markets  [PDF]
Sadia Alam, Samina Khalil, Najma Ayub, Abida Bibi, Beena Saeed, Salma Khalid, Sumaira Siddiq
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.512158
Abstract:

Nutritional value of vegetables and high prices of meat and meat originated food compel common people to consume plant originated food particularly salad vegetables. Microbial population of vegetable surfaces contains a large number of pathogenic bacteria including members of Enterobactereace like Escherichia coli (E. coli). A survey was conducted in three major markets of Rawalpindi, Pakistan. Tomato, lettuce, cabbage and cucumber samples were collected from three shops of each market. Each vegetable was analysed as unwashed and washed for total coliforms, faecal coliforms and E. coli by FAO (Food Quality Manual). About two hundred and fifty E. coli isolates were preserved, serotyped for presence of O157 serotype. Total coliforms, faecal coliforms and E. coli count exceeded the permissible limits in most samples. The highest Total coliforms were associated with cabbage (3.78 log10 cfu/g). Cucumber was the least contaminated by Total coliforms (2.15 log10 cfu/g). E. coli was detected in tomato, lettuce, cucumber and cabbage. Washed samples showed reduced bacterial population. Seventy six isolates of E. coli were biochemically characterized and serotyped for O157 antigen. A majority of strains could not be identified by serotyping. These findings conclude with high potentially pathogenic microbial load on salad vegetables and urge for preventive action on priority basis.

Green and Sustainable Heterogeneous Organo-Catalyst for Asymmetric Aldol Reactions  [PDF]
Mohammad Sadiq, Razia Aman, Khalid Saeed, M. Sohail Ahmad, M. Abid Zia
Modern Research in Catalysis (MRC) , 2015, DOI: 10.4236/mrc.2015.42006
Abstract: Linear amino acids covalently supported on graphene sheet were employed as catalysts for asymmetric aldol reactions between cyclohexanone and aldehydes (aliphatic and/or aromatic) in a batch type reactor in the presence of water. The reactions were found to exhibit high yield as well as excellent ee value. Additionally, the catalysts were found to be truly heterogeneous and eco-friendly.
Application of Scale Relativity to the Problem of a Particle in a Simple Harmonic Oscillator Potential  [PDF]
Saeed N. T. Al-Rashid, Mohammed A. Z. Habeeb, Khalid A. Ahmed
Journal of Quantum Information Science (JQIS) , 2017, DOI: 10.4236/jqis.2017.73008
Abstract: In the present work, Scale Relativity (SR) is applied to a particle in a simple harmonic oscillator (SHO) potential. This is done by utilizing a novel mathematical connection between SR approach to quantum mechanics and the well-known Riccati equation. Then, computer programs were written using the standard MATLAB 7 code to numerically simulate the behavior of the quantum particle utilizing the solutions of the fractal equations of motion obtained from SR method. Comparison of the results with the conventional quantum mechanics probability density is shown to be in very precise agreement. This agreement was improved further for some cases by utilizing the idea of thermalization of the initial particle state and by optimizing the parameters used in the numerical simulations such as the time step and number of coordinate divisions. It is concluded from the present work that SR method can be used as a basis for description the quantum behavior without reference to conventional formulation of quantum mechanics. Hence, it can also be concluded that the fractal nature of space-time implied by SR, is at the origin of the quantum behavior observed in these problems. The novel mathematical connection between SR and the Riccati equation, which was previously used in quantum mechanics without reference to SR, needs further investigation in future work.
Validity of the Value Added Tax in the SAARC Region
Anum Saeed,Adeel Ahmad,Khalid Zaman
The Romanian Economic Journal , 2012,
Abstract: Value added tax (VAT) is considered as the reform tax system of the 21st century, which has been implemented popularly in more than 135 countries in the world. In SAARC region, Pakistan was the first adaptor of VAT. It implemented VAT in 1990. The basic objective of the study is to quantify the revenue effect of the value added tax (VAT), in the SAARC region and to check in particular, whether it has proved an effective form of taxation in those countries. It is first shown that a tax innovation, such as the introduction of a VAT boost the revenue ratio of SAARC countries which have adopted VAT and optimizing government to increase the tax ratio. Panel data of SAARC countries from 1995 to 2010 on various macroeconomic factors are obtained to determine the effect of VAT on revenue ratio. The results indicate prosperous set of determinants of VAT adoption as it proves to be a vital instrument to collect tax and enhance revenue ratio. Estimates shows that most of the SARRC countries have adopted value added tax have gained a more effective tax instrument to upgrade their GDP to revenue ratio.
Plasma Cell Dyscrasia; LCDD vs Immunotactoid glomerulopathy
Jabur Wael,Saeed Hareth,Abdulla Khalid
Saudi Journal of Kidney Diseases and Transplantation , 2008,
Abstract: Light chain deposit disease is a plasma cell disorder characterized by production of a large amount of monoclonal immunoglobulin light chain or part of it, which is usually deposited as an amorphous substance in the kidneys. Immunotactoid glomerulopathy is an uncommon disease, which might be related to plasma cell dyscrasia, and characteristically manifest as organized glomerular ultra structural fibrils or microtubules. In this article, we report a case of a combined presentation of light chain disease and immunotactoid glomerulopathy in a patient with multiple myeloma and reversible advanced renal failure.
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