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Search Results: 1 - 10 of 924 matches for " Asim Zafar "
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Exact Solution to Nonlinear Differential Equations of Fractional Order via (G’/G)-Expansion Method  [PDF]
Muhammad Younis, Asim Zafar
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.51001
Abstract:

In this article, a new application to find the exact solutions of nonlinear partial time-space fractional differential Equation has been discussed. Firstly, the fractional complex transformation has been implemented to convert nonlinear partial fractional differential Equations into nonlinear ordinary differential Equations. Afterwards, the (G'/G)-expansion method has been implemented, to celebrate the exact solutions of these Equations, in the sense of modified Riemann-Liouville derivative. As application, the exact solutions of time-space fractional Burgers’ Equation have been discussed.

On Subsets of Q(√m) Q under the Action of Hecke Groups H(λq)  [PDF]
M. Aslam Malik, M. Asim Zafar
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.58120
Abstract:

\"\" is the disjoint union of \"\" for all \"\", where \"\" is the set of all roots of primitive second degree equations \"\", with reduced discriminant \"\" equal to k2m. We study the action of two Hecke groups—the full modular group \"\" and the group of linear-fractional transformations \"\" on \"\". In particular, we investigate the action of \"\" on \"\" for finding different orbits.

Q (√m)/Q Under the Action of PSL_2 (Z)∩ x,y: x^2= y^6=1
M. Aslam Malik,M. Asim Zafar
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: This study is concerned with the natural action (as M bius transformations) of some subgroups of PGL2(Z) on the elements of quadratic number field over the rational numbers. We start with two groups- the full modular group G = PSL2(Z) and another group of M bius transformations M= x,y: x^2= y^6=1 . We consider different sets of numbers with fixed discriminants in the quadratic field and look at structure of the orbits orbits of the actions of G, M, G∩M and their subgroups on these sets. The results of earlier studies on the number of orbits and the properties of elements belonging to them are extended by similar results related to the new twist connected to the group M which has nontrivial intersection with G and opens a possibility to look at orbits which were not computed in earlier studies.
Habitat of In Vivo Transformation Influences the Levels of Free Radical Scavengers in Clinostomum complanatum: Implications for Free Radical Scavenger Based Vaccines against Trematode Infections
Atif Zafar, Asim Rizvi, Irshad Ahmad, Masood Ahmad
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0095858
Abstract: Background Since free radical scavengers of parasite origin like glutathione-S-transferase and superoxide dismutase are being explored as prospective vaccine targets, availability of these molecules within the parasite infecting different hosts as well as different sites of infection is of considerable importance. Using Clinostomum complanatum, as a model helminth parasite, we analysed the effects of habitat of in vivo transformation on free radical scavengers of this trematode parasite. Methods Using three different animal models for in vivo transformation and markedly different sites of infection, progenetic metacercaria of C. complanatum were transformed to adult ovigerous worms. Whole worm homogenates were used to estimate the levels of lipid peroxidation, a marker of oxidative stress and free radical scavengers. Results Site of in vivo transformation was found to drastically affect the levels of free radical scavengers in this model trematode parasite. It was observed that oxygen availability at the site of infection probably influences levels of free radical scavengers in trematode parasites. Conclusion This is the first report showing that habitat of in vivo transformation affects levels of free radical scavengers in trematode parasites. Since free radical scavengers are prospective vaccine targets and parasite infection at ectopic sites is common, we propose that infections at different sites, may respond differently to free radical scavenger based vaccines.
Comparative efficacy of conventional diagnostic methods and evaluation of polymerase chain reaction for the diagnosis of bovine brucellosis
Raheela Akhtar,Prof. Zafar Iqbal Chaudhry,Prof. A. R Shakoori,Mansoor ud Din Ahmad and Asim Aslam
Veterinary World , 2010,
Abstract: The comparative efficacy of Rose Bengal Plate Test (RBPT) and Milk Ring test (MRT) was calculated in terms of sensitivity and specificity for the diagnosis of bovine brucellosis in cows (Group A) and buffaloes (Group B) from Lahore and Okara districts of Punjab, Pakistan. Using bacterial growth as a gold standard RBPT showed high sensitivity values of 100% in both groups. While its specificity was 96.29% (Group A) and 90.62% (Group B). On the other hands MRT showed low sensitivity (80.0% in Group A; 86.6% in Group B) while its specificity was 100% in all the animals of both groups. The calculated positive predictive and negative predictive values of both groups were in correspondence with their specificity and sensitivity values respectively. High sensitivity and low specificity of RBPT as compare to high specificity and low sensitivity of MRT in all groups suggested the poor efficacy of both tests used individually as compare to bacterial growth. In the continuation of this study polymerase chain reaction (PCR) was evaluated for its diagnostic efficacy of quick Brucella abortus isolation from same samples. PCR conducted on serum samples gave more positive results than on milk samples. Therefore, the combination of both conventional tests alongwith serum PCR can be recommended. [Vet. World 2010; 3(2.000): 53-56]
Gene Action Studies in the Inheritance of Economic Traits in Diallel Cross of Lentil (Lens culinaris Medik)  [PDF]
Fahim Abbas, Asim Riaz, Tanzeela Zafar, Muhammad Hassan, Hafiz Muhammad Imran Umar, Javed Hassan, Waseem Alam, Saleh Muhammad, Mudassir Mahmood, Hamza Sohail, Usman Ali Tiwana, Muhammad Tayyab Iqbal, Muhammad Bilal
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.76069
Abstract: The present study was conducted in 4 × 4 half diallel cross fashion using the genotypes named as NL-2002, NL-2006, Punjab Masoor-2009 and Markaz-2009 for the evaluation of gene action in the inheritance of economic traits of lentil by following the Griffing (1956) Method of analysis. Minirap 13.1 Copyright© 2000, Minitab inc. Method II, Model I was used for the analysis and gene action was computed by variance component analysis using Mixed Model with GLM (general linear model) procedure. The F1 direct crosses along with the parental genotypes were then evaluated by framing the experiment in RCBD in 3 replications. The data were recorded for the characters which are under the study are, plant height (cm), number of primary branches, number of secondary branches, number of pods per plant, number of seed per pod, seed yield per plant, biomass (gram), 100 seeds weight (gram), harvest index (%), yield per plant. The simple ANOVA for all the characters revealed that difference among genotypes was highly significant. As significant differences were present between the genotypes, it permitted subsequent analysis of the data. The Combining Ability (CA) results showed that value of variance for GCA (General Combining Ability) was significantly higher than that of those of the values of variance of SCA (Specific Combining Ability). Hence current results clearly depicted the role of additive type of gene action governing the characters under study.
Improving Growth Performance of Jatropha curcas by Inducing Polyploidy through Colchicine Treatment  [PDF]
Syed Amir Manzoor, Asim Riaz, Tanzeela Zafar, Muhammad Hassan, Hafiz Muhammad Imran Umar, Javed Hassan, Waseem Alam, Saleh Muhammad, Mudassir Mahmood, Hamza Sohail, Tanveer Aslam, Feehan Hassan, Fahim Abbas, Muhammad Faseeh Iqbal
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.76070
Abstract: This study was planned to assess genetic variation in Jatropha curcas as affected by colchichine treatments. During the experiment, seeds of Jatropha curcas were collected from mature and healthy Jatropha plants and were soaked in different concentrations of colchicines. The second treatment was that of time of soaking (seeds were soaked in different concentrations for different time durations). The results clearly revealed that by increasing the concentration of colchicine treatment, parameters like stomatal density, and size of the guard cells were reduced.
Book Review on Pakistan and the New Nuclear Taboo: Regional Deterrence and the International Arms Control Regime  [PDF]
Zafar Khan
Advances in Historical Studies (AHS) , 2013, DOI: 10.4236/ahs.2013.21001
Abstract: Pakistan has always been the focus of international community, strategists, analysts, and academic scholars on various issues more especially on the nuclear issue since Pakistan has embarked its journey from covert to overt nuclearisation of South Asia. Any work in relation to Pakistan’s nuclear weapons program ranging from its nuclear policy to its nuclear security has gained a great significance in the realm of politics and international studies. Rizwana Abbasi’s maiden volume entitled, Pakistan and the New Nuclear Taboo: Regional Deterrence and the International Arms Control Regime is a welcome contribution that would certainly be embraced by the Pakistani security planners and strategic community in general and the wider international audience in particular. The key aim of this book is that norms, values, and regime still matter despite the presence and influence of hard core realism and neo-realism.
Gender Inequality in Education in Afghanistan: Access and Barriers  [PDF]
Zafar Shayan
Open Journal of Philosophy (OJPP) , 2015, DOI: 10.4236/ojpp.2015.55035
Abstract: As a traditional society, Afghanistan has always been a hotbed of gender inequality in different aspects. Especially, women/girls face various obstacles in education. Despite the efforts to improve the education sector in the last decade, the situation of female education still remains deplorable. There is still a long way to go in improving education, in particular female education. This article aims to examine the unequal access of females and males in primary, secondary and higher education, and presents the main obstacles that prevent women or girls from having access to education. The article is prepared by a desk study using a variety of presently available researches, papers and data related to education, women’s rights and gender inequality from national and international organizations.
Castrate Resistant Metastatic Prostate Cancer: Options for a Patient in 2012  [PDF]
Asim Ahmad, Winston Tan
Open Journal of Urology (OJU) , 2012, DOI: 10.4236/oju.2012.223037
Abstract: Castrate resistant metastatic prostate cancer remains a fatal disease. Through preclinical studies and clinical trials, a multitude of options have been made available to prolong the life of these patients, as well as improve quality of life. First line treatment options following tumor progression after androgen deprivation therapy include Provenge and docetaxel. Several options are available as second line treatment, including cabazitaxel, abiraterone, and enzalutamide. Many drugs currently being studied are very promising, such as alpharadin. Here we review treatment options for patients suffering from disease progression after androgen deprivation therapy, and offer a review of the current available options for the clinician.
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