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Search Results: 1 - 10 of 994 matches for " Amber Raza "
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Personality at Work: A Study of Type A-B
Amber Raza
Market Forces , 2007,
Abstract: The objective of this study was to measure the impact of stressors on personality types in Call Centers. Based on literature survey five potential workplace stressors were identified, namely (1) Task Demands, (2) Role Demands, (3) Interpersonal Demands, (4) Organizational Structure and (5) Organizational Leadership. Based on the literature survey, a relationship model was developed that was inclusive of the above stressors, and three personality types, which were Type A, Type AB and Type B.The sample size for the study was 100. The subjects were supervisors and agents drawn non-randomly from various Call Centers of Karachi. All the subjects completed a questionnaire comprised of 27 questions based on occupational stress index (Srivasta and Singh 1981) and AB Personality Continuum (National Institute of Safety and Health 1975). The three personality types A, B & AB all go through stress, however it is the Type A, which thrives on stress. The sources of stress measured in the study were Task Demand, Role Demand, Interpersonal Demands, Organizational Structure and Organizational Leadership.The stressor that most contributed to the Personality type A’s stress in the study was Interpersonal Demand (0.38), which is justified by the literature review as Personality type A are not team players and prefer to work alone.Whereas Personality type B was stressed because of Role Demand (0.38) which is also proved by the literature review as personality type B are laid back and do not take there roles seriously. Hence it can be concluded that it type A tends to cope well with stress as compared to type AB and type B. The performance of the respondents can be made better if the supervisors are aware of the personality types and thereby motivate them according.
Prevalence of viral HBV and HCV among different group patients in Gujrat Pakistan  [PDF]
Muhammad Irshad, Muhammad Naem Raza, Zahid Anwar, Nadia Ikram, Amber Afroz, Hafiz Muhammad Nasir Iqbal
Advances in Bioscience and Biotechnology (ABB) , 2012, DOI: 10.4236/abb.2012.324060
Abstract: In this study we analyzed blood samples collected from 400 high risk patients for the prevalence of an inflammatory viral disease hepatitis B virus (HBV) and hepatitis C virus (HCV) with the help of standard kit assay and Enzyme-linked immunosorbent assay (ELISA). All the samples were selected randomly from the various places of District Gujrat, Pakistan. All the selected cases were first divided into four groups according to the age and sex (Group 1, Male below age 35 years; Group 2, Male above age 35 years; Group 3, Female below age 35 years; Group 4, Female above age 35 years), each group was comprised of 100 individual patients and analyzed for different parameters for the presence of HBV and HCV in comparison with positive and negative controls. The prevalence of HBV and HCV was higher in groups 2 (22%) and 4 (39%) respectively. Assay profile revealed that the incidence of HCV was higher in female patients as compare to the male patients. The present study indicates that more than 60% of the cirrhosis and hepatocellular carcinoma in the Region is attributable to hepatitis B virus (HBV) or hepatitis C virus (HCV) infection.
Occupation Stress and Coping Mechanism to Increase Job Satisfaction Amount Supervisors at Karachi Pharmaceuticals
Mohammad Ahmed Khan,Amber Raza,Dr Uzma Ali
Market Forces , 2007,
Abstract: This research explores the extent of stress and coping mechanism, in pharmaceuticals based in Korangi and other industrial areas in Karachi. The research is based on a previous study conducted by MA Khan (2006). The findings substantiate the view that coping mechanism increases job satisfaction of supervisors in the sampled firms. The design of the research is based on the measurement of the Organizational Stress Index. The data collected and analyzed is both from national and multinational pharmaceutical companies.Major causes of job stress have been identified as task demand, role demand and organizational structure. In Korangi area there is no significant difference in overall stress and job satisfaction levels between national and multinational pharmas. In the non Korangi sample job satisfaction is higher and job stress level in the multinationals is lower than in national pharmas.
Climate Change Associated with Global Teleconnections, Volcanic Eruptions, and the Arctic’s Snow-Ice Albedo in Godthab, Greenland  [PDF]
Amber Penner, Jacqueline Binyamin
Atmospheric and Climate Sciences (ACS) , 2013, DOI: 10.4236/acs.2013.31005

To study the impact of climate change on Godthab(Greenland), temperature and precipitation gathered from the Global Historical Climatology Network (GHCN) were analyzed for patterns within 1866-2011. Both temperature and precipitation have experienced an overall increase throughout the past 146 years. Precipitation, however, has experienced a declining trend since 1985. North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) indices showed strong correlations with average annual temperature (R = ?0.6) and smaller correlations with annual total precipitation (R = ?0.2). There are moderate correlations between temperature, precipitation, and Southern-Oscillation Index (SOI). The positive phases of Pacific-North American (PNA) led to increased winter and spring precipitation. The climate mode’s influential strength on Godthab’s temperature and precipitation, vary seasonally. In contrast with global average temperatures, Greenland has not experienced a continual warming trend since the 1950s; 30- and 10-year trends show a cooling period between 1965 and 1995. From 1866 to 2011, Godthab’s average annual temperature has increased by 1.9?C, and is anticipated to continue to warm in accordance with the global warming trend and the Arctic’s associated feedback mechanisms.

Sobolev Gradient Approach for Huxley and Fisher Models for Gene Propagation  [PDF]
Nauman Raza, Sultan Sial
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.48163

The application of Sobolev gradient methods for finding critical points of the Huxley and Fisher models is demonstrated. A comparison is given between the Euclidean, weighted and unweighted Sobolev gradients. Results are given for the one dimensional Huxley and Fisher models.

Nonlinear Computational Model of Biological Cell Proliferation and Nutrient Delivery in a Bioreactor  [PDF]
Muhammad Shakeel, Sahar Raza
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.515222

Tissue engineering is a preeminent field which aims to regenerate or repair the functions of devastated or damaged organs or tissues due to some accident, disease or age related degeneration. This field provides immense help in saving lives of thousands of patients. Tissues or organs are engineered within the patient’s body or in a laboratory, which is later implanted in the patient’s body. The important challenges for tissue engineers are: appropriate nutrients supply and optimum cell density with uniform distribution of cells in a final construct. Mathematical modeling is the best tool in order to understand the mechanism of cell proliferation and nutrient supply in a bioreactor. Mathematical models not only help to analyze potentially useful results but also enlighten the way of further research. In this work, a simple mathematical model of diffusive nutrient transport and non-linear cell proliferation in a bioreactor is developed. A cell seeded porous scaffold is kept in a bioreactor with a fixed nutrient supply. We model the consumption and transport of nutrients by reaction-diffusion equation and cell proliferation by Fisher Kolmogorove equation. Nutrient delivery to the cell seeded scaffold is purely due to diffusion. The model is solved numerically by commercial finite element solver COMSOL. The results show that all types of constructs, if nutrient supply depends on diffusion, will produce cell proliferated regions near nutrient supply. The results are presented for uniform and non-uniform initial cell seeding strategies. It is also observed that cell proliferation is insensitive to the initial seeding strategy.

Enhancing the Performance of Current Online Education System—A Study of Cloud Computing and Virtualization  [PDF]
Basheer Riskhan, Raza Muhammed
Journal of Computer and Communications (JCC) , 2015, DOI: 10.4236/jcc.2015.310006
Abstract: Online Education (OE) system is an effective and efficient way to perform the education in all sectors of government and non-government educational organization. Low performance and minimum speed are major overhead in the current ongoing OE system due to the increase of users and some system issues. Base on the previous study and recent practical issues, a model is proposed to Enhancing the Performance of Online Education System (EPOES) to examine the bare metal virtualization, isolation and virtual machine templates. Bare metal virtualization has led the native execution, isolation isolated the running application and Virtual Machine Template has help to increase efficiency, avoiding the repetitive installation and operate the server in less time. The proposed model boosts the performance of the current OE system, and examines the benefits of the adaptation of cloud computing and virtualization which can be used to overcome the existing challenges and barriers of the current OE System.
Esext3 for Reducing the Effect of Harboring Bug in File System  [PDF]
Raza Muhammad, Basheer Riskhan
Journal of Software Engineering and Applications (JSEA) , 2017, DOI: 10.4236/jsea.2017.104021
Abstract: One of the most critical threats to the reliability and robustness for file system is harboring bug (silent data corruption). In this research we focus on checksum mismatch since it occurs not only in the user data but also in file system. Our proposed solution has the ability to check this bug in file system of Linux. In our proposed solution there is no need to invoke or revoke checker utility, it comes as the integrated part of file system and has the ability to check upcoming updates before harboring bug make unrecoverable changes that leads significant data loses. Demonstration testing shows satisfactory results in file server and web server environments in terms of less memory consumption and avoidable delay in system’s updating.
Non-equilibrium Green's function based single-band tight-binding model for Fe-MgO-Fe magnetic tunnel junction devices
Tehseen Raza,Hassan Raza
Physics , 2008,
Abstract: Motivated by observation of very high tunnel magnetoresistance (TMR) in Fe-MgO-Fe magnetic tunnel junction devices, we propose a theoretical model for these devices based on a single-band tight-binding approximation. An effort is made to capture the band dispersions over the two dimensional transverse Brillouin zone. In the transport direction, spin dependent Hamiltonian is prescribed for Delta_1 and Delta_5 bands. Non-equilibrium Green's function formalism is then used to calculate transport. Features like voltage dependence of TMR are captured quantitatively within this simple model and the trends match well with the ones predicted by ab-initio methods and experiments.
Chungará (Arica) , 2011, DOI: 10.4067/S0717-73562011000100012
Abstract: recent research indicates that urban reciprocity, a survival strategy used by the urban poor to self-insure against economic risks, has been eroded by deepening poverty and economic insecurity. this paper examines how the urban poor maintain reciprocal relationships in villa israel, a periurban settlement located on the outskirts of the city of cochabamba, bolivia. the results indicate that, while some reciprocal relationships do appear to be in decline, others have been transformed in ways that enhance security for participants. in particular, there appears to have been a shift away from reciprocal relationships formed on the basis of compadrazgo (ritual godparenthood) and "paisanidad" (shared origin) and toward those formed around commerce and evangélico (protestant or evangelical) churches.
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