Time filter

Source Type

Sita Road, Pakistan

Lahore College for Women University is an independent women's university in Lahore, Pakistan, founded as a women's college in 1922. One of the oldest female institutions of Pakistan, the university has 15,000 students and a teaching faculty of 450. It admits students at the intermediate,bachelors level master's and Ph.D. levels. Established in May 1922 as an intermediate residential college, it was housed in a building on Hall Road, Lahore, with a strength of 60 students, 25 of whom were boarders and 13 staff members.As per ranking of general universities, Higher Education Commission of Pakistan ranks Lahore College for Women University at 15. Wikipedia.

Sharif M.,University of Punjab | Iftikhar S.,University of Punjab | Iftikhar S.,Lahore College for Women University
Advances in High Energy Physics | Year: 2015

This paper is devoted to studying two interesting issues of a black hole with string cloud background. Firstly, we investigate null geodesics and find unstable orbital motion of particles. Secondly, we calculate deflection angle in strong field limit. We then find positions, magnifications, and observables of relativistic images for supermassive black hole at the galactic center. We conclude that string parameter highly affects the lensing process and results turn out to be quite different from the Schwarzschild black hole. © 2015 M. Sharif and Sehrish Iftikhar. Source

Bhatti H.N.,University of Agriculture at Faisalabad | Safaa Y.,University of Agriculture at Faisalabad | Safaa Y.,Lahore College for Women University
Desalination and Water Treatment | Year: 2012

This study describes the removal of Everdirect Orange-3GL and Direct Blue-67 by low cost rice milling waste in a batch mode. The effect of various process parameters like solution pH, particle size, biosorbent dose, initial dyes concentration, contact time and temperature on the removal of anionic dyes was investigated. Maximum biosorption capacity of rice milling waste was observed at pH 1 and 3 for Everdirect Orange-3GL and Direct Blue-67, respectively. The results showed that the biosorption capacity of rice milling waste decreased with increase in biosorbent dose and increased with increase in initial dyes concentration and temperature. A maximum biosorption capacity of 31.44 and 52.63 mg/g was observed for Everdirect Orange- 3GL and Direct Blue-67, respectively. Analysis of equilibrium data was done by commonly used isotherms. The experimental data followed the Langmuir, Freundlich and Temkin isotherm models very well. Adsorption data of both dyes was better described by the pseudo-secondorder kinetic model. Thermodynamic study revealed that the process was feasible and spontaneous at higher temperatures. Positive value of ΔH° (13.31 and 40.64 kJ/mol) showed that the process was endothermic in nature. FT-IR spectrum was also taken to investigate the functional groups involved in the biosorption of anionic dyes. The results suggested the applicability of rice milling waste in industrial processes for remediation of industrial effluents. © 2012 Desalination Publications. All rights reserved. Source

Riaz M.,Lahore College for Women University
Journal of Postgraduate Medical Institute | Year: 2012

Selenium is an essential trace element for humans and animals, and selenium deficiency is associated with several disease conditions such as immune impairment. Free radicals are produced in the body as a result of many biochemical processes in the body. All aerobic organisms possess antioxidant defense system to combat oxidative stress. Selenium is an important constituent of antioxidant enzymes, especially, glutathione peroxidase and some other selenoproteins that participate in various physiological activities and protects the cell against the deleterious effects of free radicals by modulating the cell response. However, their exact role is still unknown. Moreover, many human diseases are related to the cell cycle regulation. Selenium intakes, greater than the recommended daily allowance (RDA), appear to protect against certain types of cancers by finding its role in regulation of cell proliferation and apoptosis. The role of selenium has been explored in normal thyroid functioning, enhancing immune function, carcinogenesis, cardiovascular diseases, in the prevention of pre-eclampsia, diabetes mellitus and male reproduction etc. This article reviews introductory aspects of selenium as an essential micronutrient, different sources of selenium, Pharmacokinetics and its role in various pathologies and aims to provide an update on selenium profile. Source

Safa Y.,Lahore College for Women University
Desalination and Water Treatment | Year: 2016

In this research study, the biosorption of Synolon red 3HF and Synolon black HWF-FS dyes onto novel biomasses mustard oil cake and linseed oil cake, respectively, was investigated in the batch mode using different process parameters like pH, particle size, biosorbent dose, initial dye concentration, contact time, and temperature. Maximum biosorption capacity was observed at pH 1 for Synolon red 3HF onto mustard oil cake and pH 2 for Synolon black HWF-FS onto linseed oil cake. The biosorption capacity was efficient at the smallest particle size of biosorbent. The amount of dye sorbed (mg/g) decreased with the decrease in biosorbent dose and increased with increase in initial dye concentration and temperature. The Freundlich isotherm model was best fitted to experimental data. The biosorption followed the pseudo-second-order kinetic model suggesting a chemisorption mechanism. An increase of biosorption capacity with temperature shows an endothermic nature of the process. In this research, the influence of electrolytes, heavy metals, and surfactants on the removal of dyes was also examined. © 2015 Balaban Desalination Publications. All rights reserved. Source

Sarfraz M.,Kuwait University | Hussain M.Z.,University of Punjab | Hussain M.,Lahore College for Women University
International Journal of Computer Mathematics | Year: 2012

This work is a contribution towards the graphical display of 2D data when they are convex, monotone and positive. A piecewise rational function in a cubic/cubic form is proposed, which, in each interval, involves four free parameters in its construction. These four free parameters have a direct geometric interpretation, making their use straightforward. Illustrations of their effect on the shape of the rational function are given. Two of these free parameters are constrained to preserve the shape of convex, monotone and positive data, while the other two parameters are utilized for the modification of positive, monotone and convex curves to obtain a visually pleasing curve. The problem of shape preservation of data lying above a line is also discussed. The method that is presented applies equally well to data or data with derivatives. The developed scheme is computationally economical and pleasing. The error of rational interpolating function is also derived when the arbitrary function being interpolated is C3 in an interpolating interval. The order of approximation is O(hi 3). © 2012 Copyright Taylor and Francis Group, LLC. Source

Discover hidden collaborations