Muhammad Abbas - Academia.edu (original) (raw)

Papers by Muhammad Abbas

Journal of Generic Medicines: The Business Journal for the Generic Medicines Sector, 2021

Africa has a history of grappling with outbreaks and high prevalence of disease. It currently con... more Africa has a history of grappling with outbreaks and high prevalence of disease. It currently confronts COVID-19 which is escalating because of local community transmission of the disease. Poorly resourced health systems in Africa are ill-prepared for the surging number of COVID-19 cases. This paper emphasizes that in the current battle against COVID-19, policymakers should not lose sight of future policy challenges. COVID-19 vaccine has become available, but patent exclusivities might play a major role in hindering access to it. With little or no indigenous pharmaceutical manufacturing capacity of its own, Africa will almost entirely rely on importing COVID-19 vaccines or treatment from third parties. The World Trade Organization’s (WTO’s) Paragraph 6 System, which relates to export-oriented compulsory licensing, is excessively formal and does not suit a pandemic situation which requires swift action. This paper draws policymakers’ attention of to a high priority policy concern for...

jesya

Tujuan penelitian ini adalah untuk mengkaji dan menganalisis pengaruh gaya kepemimpinan dan lingk... more Tujuan penelitian ini adalah untuk mengkaji dan menganalisis pengaruh gaya kepemimpinan dan lingkungan kerja terhadap kinerja karyawan Rumah Sakit Ibnu Sina Kota Makassar. Populasi yang digunakan sebagai bahan penelitian adalah karyawan RS. Ibnu Sina Kota Makassar Tahun 2018 sebanyak 66 orang. Sampel adalah bagian atau wakil populasi yang diteliti. Teknik pengambilan sampel menggunakan metode sensus yaitu jumlah sampel merupakan seluruh populasi. Jenis data dalam penelitian ini adalah data primer dan data sekunder. Pengumpulan data menggunakan metode wawancara dan kuesioner. Hasil dari penelitian ini adalah Gaya Kepemimpinan secara parsial berpengaruh positif dan signifikansi terhadap kinerja. Lingkungan Kerja secara parsial tidak berpengaruh positif dan signifikansi terhadap kinerja. Kinerja karyawan Rumah Sakit Ibnu Sina Makassar dapat terlaksana dengan baik, apabila tujuan dan sasaran yang berlaku di Rumah Sakit Ibnu Sina Makassar sudah terlaksana.

arXiv (Cornell University), Aug 30, 2020

Software testing is one of the important ways to ensure the quality of software. It is found that... more Software testing is one of the important ways to ensure the quality of software. It is found that testing cost more than 50% of overall project cost. Effective and efficient software testing utilizes the minimum resources of software. Therefore, it is important to construct the procedure which is not only able to perform the efficient testing but also minimizes the utilization of project resources. The goal of software testing is to find maximum defects in the software system. More the defects found in the software ensure more efficiency is the software testing Different techniques have been proposed to detect the defects in software and to utilize the resources and achieve good results. As world is continuously moving toward data driven approach for making important decision. Therefore, in this research paper we performed the machine learning analysis on the publicly available datasets and tried to achieve the maximum accuracy. The major focus of the paper is to apply different machine learning techniques on the datasets and find out which technique produce efficient result. Particularly, we proposed an ensemble learning models and perform comparative analysis among KNN, Decision tree, SVM and Naïve Bayes on different datasets and it is demonstrated that performance of Ensemble method is more than other methods in term of accuracy, precision, recall and F1-score. The classification accuracy of ensemble model trained on CM1 is 98.56%, classification accuracy of ensemble model trained on KM2 is 98.18% similarly, the classification accuracy of ensemble learning model trained on PC1 is 99.27%. This reveals that Ensemble is more efficient method for making the defect prediction as compared other techniques.

Fractal and Fractional

The theory of univalent functions has shown strong significance in the field of mathematics. It i... more The theory of univalent functions has shown strong significance in the field of mathematics. It is such a vast and fully applied topic that its applications exist in nearly every field of applied sciences such as nonlinear integrable system theory, fluid dynamics, modern mathematical physics, the theory of partial differential equations, engineering, and electronics. In our present investigation, two subfamilies of starlike and bounded turning functions associated with a three-leaf-shaped domain were considered. These classes are denoted by BT3l and S3l*, respectively. For the class BT3l, we study various coefficient type problems such as the first four initial coefficients, the Fekete–Szegö and Zalcman type inequalities and the third-order Hankel determinant. Furthermore, the existing third-order Hankel determinant bounds for the second class will be improved here. All the results that we are going to prove are sharp.

Mathematics

The purpose of this article is to obtain the sharp estimates of the first four initial logarithmi... more The purpose of this article is to obtain the sharp estimates of the first four initial logarithmic coefficients for the class BTs of bounded turning functions associated with a petal-shaped domain. Further, we investigate the sharp estimate of Fekete-Szegö inequality, Zalcman inequality on the logarithmic coefficients and the Hankel determinant H2,1Ff/2 and H2,2Ff/2 for the class BTs with the determinant entry of logarithmic coefficients.

Journal of Basic & Applied Sciences, 2018

Balanced crop nutrition is one of the important tools necessary for sustaining crop productivity,... more Balanced crop nutrition is one of the important tools necessary for sustaining crop productivity, maintaining soil fertility and ensuring food security worldwide. Nitrogen and phosphorus are essential plant macronutrients, nevertheless, most of the Pakistani soils exhibit moderate to severe deficiency of these nutrients. Furthermore, considerable genetic variations exist among wheat genotypes for nutrient acquisition and utilization which illustrate their differential nutrient requirements to produce higher yields. A field experiment was conducted in order to formulate balanced fertilizer recommendations for newly evolved wheat genotype SD-998 to achieve maximum yield potential. Ten treatments viz., 0-0 (control), 90-23, 90-45, 90-70, 120-30, 120-60, 120-90, 150-40, 150-75 and 150-110 kg N-P2O5 ha-1 were applied according to randomized complete block design with three replications. Analysis of variance revealed that growth, yield and yield related attributes as well as nutrient accu...

<p>Cancer subjects are shaped as squares and controls as circles. The training set is label... more <p>Cancer subjects are shaped as squares and controls as circles. The training set is labelled in filled red and the test set in hollowed blue. The four selected subjects and the vectors are same shaped and coloured as <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0065880#pone-0065880-g001" target="_blank">Figure 1</a>.</p

Research Journal of Textile and Apparel, 2011

The effect of gamma radiation on the dyeing of cotton with Reactive Blue 13 dye powder has been i... more The effect of gamma radiation on the dyeing of cotton with Reactive Blue 13 dye powder has been investigated. The cotton and dye powder are irradiated to absorb doses of 100, 200, 300, 400 and 500 Gy by using a Co-60 gamma irradiator. Dyeing is performed by using irradiated and un-irradiated cotton with irradiated and un-irradiated dye powder, in order to observe the effect of radiation treatment on the colour strength of the reactive dye on cotton. Different dyeing parameters such as temperature, time and p H are optimized using irradiated cotton and dye powder. The effect of gamma irradiation on the colour strength and Lab values has been observed through optimized conditions of dyeing. The colour strength and Lab values are obtained by spectra flash spectrophotometer (SF650). ISO standard methods are employed to study the effect of gamma radiation on the Colourfastness properties of fabric. It can be demonstrated that gamma irradiation not only improves the colour strength of the...

Journal of the College of Physicians and Surgeons--Pakistan: JCPSP

Objective: To determine the mean visible labial length of maxillary and mandibular anterior teeth... more Objective: To determine the mean visible labial length of maxillary and mandibular anterior teeth at rest.

Lecture Notes on Software Engineering, 2015

Requirement change management is very critical and the most important aspect in the software deve... more Requirement change management is very critical and the most important aspect in the software development. Changings unleash themselves during all the stages of software development. Hence we must need to have some effective techniques to tackle these changings. Basically change is a transition from current way of working to another looked-for way and this nature of the change coupled with complexity of services create problems. This paper depicts the main hurdles in the change management like dependability, traceability etc. and efficient tools to cope these changes so that it would not affect the stability. Ultimate aim is to propose a framework to manage this important trait in the process of software development.

1st International Conference on Green Circuits and Systems, ICGCS 2010, 2010

Abstract The power modeling of different realizations of cascaded integrator-comb (CIC) decimatio... more Abstract The power modeling of different realizations of cascaded integrator-comb (CIC) decimation filters has been a subject of several recent works. In this work we have extended these with modeling of leakage power, which is an important factor since the input sample ...

Conference Record - Asilomar Conference on Signals, Systems and Computers, 2010

In this work, we investigate the problem of computing any requested set of power terms in paralle... more In this work, we investigate the problem of computing any requested set of power terms in parallel using summations trees. This problem occurs in applications like polynomial approximation, Farrow filters (polynomial evaluation part) etc. In the proposed technique, the partial product of each power term is initially computed independently. A redundancy check is then made in each and among all

Ukrainian Mathematical Journal, 2014

Some common fixed point results for mappings satisfying a nonlinear weak contractive condition in... more Some common fixed point results for mappings satisfying a nonlinear weak contractive condition in the framework of ordered metric spaces are obtained. The accumulated results generalize and extend several comparable results well-known from the literature. Отримано деякi спiльнi теореми про нерухому точку для вiдображень, що задовольняють нелiнiйну слабкостискальну умову в рамках упорядкованих метричних просторiв. Отриманi результати узагальнюють та розширюють декiлька порiвняльних результатiв, вiдомих iз лiтературних джерел.

In this work, a 1 C piecewise rational cubic Ball curve function with three shape parameters is p... more In this work, a 1 C piecewise rational cubic Ball curve function with three shape parameters is presented. The shape parameters are utilized to control and modify the shape of data as required. The function is used to visualize the positive data and conserves the positivity of data. Numerical examples show that the present interpolant is quite efficient.

Virus Genes, 2012

The strains of Newcastle disease virus (NDV) were isolated from five suspected outbreaks of ND in... more The strains of Newcastle disease virus (NDV) were isolated from five suspected outbreaks of ND in broiler (n = 3) and layers (n = 2) poultry farms. The eggisolated viruses were subjected to biological and genetic characterization. Based on the biological characterization, isolates showed haemagglutination titer Clog 2 7 , mean death time \55 h, intracerebral pathogenecity index B1.8, and egg lethal dose 50 from 10-7.15 to 10-9.31 /1 ml. Genetic characterization of the fusion (F) gene revealed that the isolates clustered with NDV strains of genotype VII (VIIf) within class II, which remained predominant genotype in the domestic poultry of Asia. The deduced amino acid sequence of the isolates confirmed virulent motif 112 RRQKRF 117 at the F protein cleavage site. A bioinformatics and pairwise comparison approach was applied to estimate the synonymous and non-synonymous substitution rates (dN/dS) and selective evolutionary pressure for the F protein. The dN/dS calculated for genotype VII indicate purifying selection, which resulted in a low evolution rate in F gene. The F protein shows a strong negative pressure throughout the length of the protein and no recombination event was determined. Collectively, the results suggest that very similar virulent strains of NDV are involved during current wave of disease outbreak throughout the country. From these results, in conjunction with our recent reports of NDV from Pakistan, it is possible to conclude that emergence of novel group may require revisiting the diagnostics and vaccine control strategies. Keywords Newcastle disease Á Fusion protein Á Phylogenetic analysis Á Evolutionary analysis Á Pakistan Muhammad Zubair Shabbir and Muhammad Abbas equally contributed as first authors.

Tetrahedron Letters, 2003

Starting from cis-oriented epoxytriflate pentoses 1 and 4, an expeditious route to the chiral thi... more Starting from cis-oriented epoxytriflate pentoses 1 and 4, an expeditious route to the chiral thioazolidene derivatives 2a-3a and 5a-6a in good yields is described. A minor amount of structural isomers 2b-3b and 5b-6b has also been observed. The newly formed compounds show activity against the human neuroblastoma cell line SK-N-LO.

PLoS ONE, 2013

Human exhibit wide variations in their metabolic profiles because of differences in genetic facto... more Human exhibit wide variations in their metabolic profiles because of differences in genetic factors, diet and lifestyle. Therefore in order to detect metabolic differences between individuals robust analytical methods are required. A protocol was produced based on the use of Liquid Chromatography-High Resolution Mass Spectrometry (LC-HRMS) in combination with orthogonal Hydrophilic Interaction (HILIC) and Reversed Phase (RP) liquid chromatography methods for the analysis of the urinary metabolome, which was then evaluated as a diagnostic tool for prostate cancer (a common but highly heterogeneous condition). The LC-HRMS method was found to be robust and exhibited excellent repeatability for retention times (,61%), and mass accuracy (,61 ppm). Based on normalised data (against creatinine levels, osmolality or MS total useful signals/MSTUS) coupled with supervised multivariate analysis using Orthogonal Partial Least Square-Discriminant Analysis (OPLS-DA), we were able to discriminate urine samples from men with or without prostate cancer with R2Y(cum) .0.9. In addition, using the receiver operator characteristics (ROC) test, the area under curve (AUC) for the combination of the four best characterised biomarker compounds was 0.896. The four biomarker compounds were also found to differ significantly (P,0.05) between an independent patient cohort and controls. This is the first time such a rigorous test has been applied to this type of model. If validated, the established protocol provides a robust approach with a potentially wide application to metabolite profiling of human biofluids in health and disease.

PLoS ONE, 2014

In this paper, a numerical method for the solution of a strongly coupled reaction-diffusion syste... more In this paper, a numerical method for the solution of a strongly coupled reaction-diffusion system, with suitable initial and Neumann boundary conditions, by using cubic B-spline collocation scheme on a uniform grid is presented. The scheme is based on the usual finite difference scheme to discretize the time derivative while cubic B-spline is used as an interpolation function in the space dimension. The scheme is shown to be unconditionally stable using the von Neumann method. The accuracy of the proposed scheme is demonstrated by applying it on a test problem. The performance of this scheme is shown by computing L ? and L 2 error norms for different time levels. The numerical results are found to be in good agreement with known exact solutions.