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Search Results: 1 - 10 of 402761 matches for " Najim M. Aziz "
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A study of biochemical polymorphism in Carp (Cyprinus carpio): new alleles in transferring
Talib A. Jaayid,,Muntaha Y. Yousief,,Jaafer M. Owaid,Najim M. Aziz
Research Opinions in Animal & Veterinary Sciences , 2011,
Abstract: The present study was conducted to investigate the existence of polymorphism at transferrin (Tf) locus in the Carp (Cyprinus carpio). A polyacrylamide gel electrophoresis (PAGE) under alkaline condition method was used to distinguish Carp Tf alleles. Analysis of 116 samples revealed that all animals were polymorphic, showing many genotypes with clear biodiversity in the Tf gene. Seven Tf genotypes consisting of 4 homozygote types (CC, DD, FF and GG) and two heterozygote types (CD, DG and FG) were detected. These fractions are controlled by codominant autosomal genes according to the Mendelian laws of inheritance. The highest gene frequencies were calculated such as 0.50 for Tf D, 0.26 for Tf F and 0.12 for C and G. Thus, carp assemblages consistently tended to be more predominant to D allele. Differences between expected number and observed number for transferrin genotypes were no significant. Polyacrylamide electrophoresis, the technique employed in this study, allows rapid and efficient screening for the presence of polymorphism in Tf.
Prostate Cancer Diagnostic and Evaluation in Gaza-Strip, Palestine  [PDF]
Y. S. M. Alajerami, K. M. Abushab, S. I. Alagha, A. M. Beeram, Ahmed Najim, ? Roentgen
Health (Health) , 2015, DOI: 10.4236/health.2015.711169
Abstract: Prostate cancer has the third highest cancer incidence in Palestinian men with incidence rate about 4.5/100,000, and an increase in new cases by 50% between 2000 and 2015. Prostate cancer death rates have been obviously decreased in many countries due to treatment, precise screening. The current study aims to review and evaluate the new diagnosed prostate cancer in the Gaza Strip, Palestine. As a cross-sectional, quantitative and analytical approach based on structured review, the current study was conducted at Al-Shifa and European hospitals (main oncology departments in governmental hospitals). Interviews with newly diagnosed cancer prostate patients were carried out during the period of March and June, 2014; a total of 41 newly diagnosed with primary cancer prostate. Furthermore, demographic, health status, medical investigations and tests are reported from oncologists and hospital archives over the last five years (2010-2014). The current study showed that there were 41 new prostate cancer cases in three months with incidence rate 5.1 per 100,000. The highest rate of incidence was among the patients above age of 70+, 70 - 74 (29.3%). The results showed that 58.1% of the patients were smokers, and 22.6% used to smoke, while 16.1% responded they don’t smoke at all. The most common type of treatment used by participants was chemotherapy therapy followed by hormonal therapy and prostatectomy. The least common methods used for treatment were radiation therapy and combination of hormonal, radiation, and chemotherapy as only 5 participants used each type of these treatment options. The prevalence of prostate cancer was higher among men who lived in Gaza Governorate compared to other governorates. Limited use of radiation therapy was due to the unavailability of this treatment in Gaza Strip.
The Effect of Atorvastatin on Liver Function among Patients with Coronary Heart Disease in Gaza Strip  [PDF]
Mahmmoud H. Taleb, Ihab M. Almasri, Naima I. Siam, Ahmed A. Najim, Adham I. Ahmed
Pharmacology & Pharmacy (PP) , 2014, DOI: 10.4236/pp.2014.58088
Abstract:

Statins, which are inhibitors of 3-hydroxy-3-methylglutaryl-CoA (HMG-CoA) reductase, are considered as one of the most important drugs and the drug of choice for reducing an abnormal cholesterol level. Statins are normally used to decrease the risk of coronary heart disease (CHD), but they tend to be associated with liver adverse effects. The objective of this prospective study was to investigate the effect of atorvastatin therapy on the liver function in patients with CHD. Study comprised of 66 newly diagnosed CHD patients who were selected from UNRWA clinics in the Gaza Strip. The patients were clinically examined and treated with atorvastatin (10 - 40 mg/day). A questionnaire was used to collect the data concerning patient’s characteristics. Total cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), liver enzymes tests such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and total and direct blood bilirubin were measured before starting treatment and after 3 and 6 months of treatment. The results showed a significant increase in the mean values of ALT, AST, total bilirubin and direct bilirubin levels after 3 months then decreased after the next 3 months, but they were higher than the baseline with insignificant association.

Asymptotic Independence in the Spectrum of the Gaussian Unitary Ensemble
P. Bianchi,M. Debbah,J. Najim
Mathematics , 2008,
Abstract: Consider a $n \times n$ matrix from the Gaussian Unitary Ensemble (GUE). Given a finite collection of bounded disjoint real Borel sets $(\Delta_{i,n},\ 1\leq i\leq p)$, properly rescaled, and eventually included in any neighbourhood of the support of Wigner's semi-circle law, we prove that the related counting measures $({\mathcal N}_n(\Delta_{i,n}), 1\leq i\leq p)$, where ${\mathcal N}_n(\Delta)$ represents the number of eigenvalues within $\Delta$, are asymptotically independent as the size $n$ goes to infinity, $p$ being fixed. As a consequence, we prove that the largest and smallest eigenvalues, properly centered and rescaled, are asymptotically independent; we finally describe the fluctuations of the condition number of a matrix from the GUE.
Integrating Radar Altimeters and Optical Imagery Data for Estimating Water Volume Variations in Lakes and Reservoirs (Case Study: Lake Nasser)  [PDF]
Hala M. Ebaid, Medhat Aziz
Journal of Geographic Information System (JGIS) , 2017, DOI: 10.4236/jgis.2017.96041
Abstract: Monitoring of variations in water for lakes and reservoirs is a requirement for meeting human needs and assessing ongoing climatic changes. However, regular gauging networks fail to provide the information needed for water volume data. The aim of this study is to evaluate an approach to estimate water volume variation for the southern part of Lake Nasser in Egypt without in-situ gauge measurements and bathymetry maps. Combination of both Hydroweb satellite altimetry and Landsat 8 satellite imagery data was used. As compared to in-situ water levels, satellite altimetry provided accurate water levels variations for Lake Nasser; the RMSE was 0.28 m, with excellent agreement (R2 is 0.98). The lowest water level of altimetry database i.e. 174.57 m was used as a reference level for estimating water volumes variations for the study duration 8/2014-6/2015. All water altimetry levels were converted to differences of recorded water level above the lowest altimetry Level (ΔWL). Series of Landsat 8 imagery data were selected to extract surface areas corresponding to radar altimetry water levels dates. Areas-ΔWL relationship model was established as a polynomial function: A = f(ΔWL), and therefore, the relationship of the water volume above the lowest water level for the study time (ΔV) and ΔWL was obtained through the analytical integration of (Area-ΔWL) model. Another approach (Heron method) was also applied for estimating water volume variations. Validation of these two approaches showed that estimated water volume variations above reference water level using both methods i.e. integration and Heron agreed well with in-situ measurements of volume variation deduced from recent bathymetry map and in-situ water levels (R2 for both methods = 0.98). The RMSE for integration method is 323.89 MCM and for Heron method was 318.09 MCM, being approximately 13.2% of the mean volume variations above the lowest reference water level for mean surface area ≈658 km2. Another byproduct for these approaches was the modeling for a remote detecting water level. Once the F(L) relationship is set up for a given region, future Landsat images can be utilized to track water levels freely of
Effect of Intervention Educational Programs on Improving Quality of Life among Overweight/Obese University Students in Gaza Strip  [PDF]
Ahmed A. Najim
Open Journal of Nursing (OJN) , 2014, DOI: 10.4236/ojn.2014.412094
Abstract:
Background: Overweight and obesity are among the most frequently encountered multi-factorial disorders in most populations of the world. In addition, to its health impacts, overweight/obesity leads to many health problems which reflect on the university students’ physical, psychological, social and environmental aspects of their quality of life. The study aim was to evaluate the effect of an educational program on improving quality of life of overweight/obese university students in Gaza strip. Materials and Methods: quasi-experimental nonequivalent pretest-posttest control group design utilized in this study 74 and 69 students in the intervention and control group respectively. The study conducted at Islamic university of Gaza and data were collected in two stages before and after five months from the application of the educational program, using interviewing questionnaire and world health organization quality of life-BREF instrument; pre-post test and body mass index were calculated. Results: the study results revealed that overall students’ knowledge for posttest was significantly higher than pretest (p-value ≤ 0.05). Overall, mean score of quality of life after the program was significantly (p-value = 0.001) greater than before and greater than control group for all domains. Conclusion: The study concluded that the health educational intervention program had positive effects on knowledge, practices and attitudes regarding overweight/obesity with improving university students’ mean score of quality of life.
Thermal and Ablative Properties of Ipns and Composites of High Ortho Resole Resin and Difurfurylidene Acetone
Tariq S. NAJIM,Amel M. NAJI,Mahmood M. BARBOOTI
Leonardo Electronic Journal of Practices and Technologies , 2008,
Abstract: High ortho resole resin was prepared by condensation of phenol with excess of formaldehyde in the presence of magnesium oxide as catalyst. Reaction of furfuraldehyde with acetone in basic medium led to difurfurylidene acetone (DFA). Their interpenetrating polymer network (IPNS) were obtained by the reaction of predetermined quantities of difurfurylidene acetone and high ortho resole using p-toluene sulphonic acid (PTSA) as curing agent. The thermal behavior of the resins was studied using thermogravimetry (TG) under ambient and nitrogen atmospheres over a temperature range of (25-1000 Co). It was observed that the IPN of 20% DFA – 80% resole has higher thermal stability than that of resole alone and the decomposition temperature was higher by 80 Co. This behavior was attributed to highly cross linked structure and thermally stable backbone of ploy difurfurylidene acetone due to formation of ladder structure.Impregnation of chopped fiber glass type (E) with the polymeric solutions was used to prepare their composites, and the ablative properties were investigated according to ASTM E-285 –80. It was observed that the IPN of (DFA- resol) perform better than the resole composite alone.
Cooperative Spectrum Sensing Using Random Matrix Theory
L. S. Cardoso,M. Debbah,P. Bianchi,J. Najim
Mathematics , 2008,
Abstract: In this paper, using tools from asymptotic random matrix theory, a new cooperative scheme for frequency band sensing is introduced for both AWGN and fading channels. Unlike previous works in the field, the new scheme does not require the knowledge of the noise statistics or its variance and is related to the behavior of the largest and smallest eigenvalue of random matrices. Remarkably, simulations show that the asymptotic claims hold even for a small number of observations (which makes it convenient for time-varying topologies), outperforming classical energy detection techniques.
Averting Behavior Framework for Perceived Risk of Yersinia enterocolitica Infections
Sonia N. Aziz,Khwaja M. S. Aziz
Journal of Pathogens , 2012, DOI: 10.1155/2012/725373
Abstract: The focus of this research is to present a theoretical model of averting actions that households take to avoid exposure to Yersinia enterocolitica in contaminated food. The cost of illness approach only takes into account the value of a cure, while the averting behavior approach can estimate the value of preventing the illness. The household, rather than the individual, is the unit of analysis in this model, where one household member is primarily responsible for procuring uncontaminated food for their family. Since children are particularly susceptible and live with parents who are primary decision makers for sustenance, the designated household head makes the choices that are investigated in this paper. This model uses constrained optimization to characterize activities that may offer protection from exposure to Yersinia enterocolitica contaminated food. A representative household decision maker is assumed to allocate family resources to maximize utility of an altruistic parent, an assumption used in most research involving economics of the family. Yersiniosis remains a public health hazard due to exposure to contaminated food and human to human or zoonotic infections. Yersinia enterocolitica is an important cause of yersiniosis in humans and animals; its epidemiology remains yet to be fully understood and exposure to it is a growing food safety concern [1–5]. There are a number of recent reviews published on specific aspects of Y. enterocolitica, and while some of these studies investigate incidence rates, true incidence in developed and developing countries remain unknown [1, 6–10]. One of the most frequent outcomes of Y. enterocolitica is possibly diarrhea as exemplified by a study in Poland [11]. A study on methods of monitoring trends in incidence of foodborne diseases in the United States is a welcome instrument in the estimation of incidence of Y. enterocolitica and other pathogens [12]. Studies of incidence, combined with studies investigating behaviors of individuals responding to information of incidence and risk levels of Y. enterocolitica can be useful for public health mitigation policies. In this paper we discuss a behavioral model with a focus on avoiding health hazards associated with exposure to Y. enterocolitica. The paper is theoretical and the conceptual model presented here is not showcased with data. The theoretical framework easily lends itself to application subject to availability of secondary data. One major thrust of the theoretical discussion revolves around the heuristic notion “an ounce of prevention is worth a pound of
Kinematic Self-Similar Plane Symmetric Solutions
M. Sharif,Sehar Aziz
Physics , 2006, DOI: 10.1088/0264-9381/24/3/006
Abstract: This paper is devoted to classify the most general plane symmetric spacetimes according to kinematic self-similar perfect fluid and dust solutions. We provide a classification of the kinematic self-similarity of the first, second, zeroth and infinite kinds with different equations of state, where the self-similar vector is not only tilted but also orthogonal and parallel to the fluid flow. This scheme of classification yields twenty four plane symmetric kinematic self-similar solutions. Some of these solutions turn out to be vacuum. These solutions can be matched with the already classified plane symmetric solutions under particular coordinate transformations. As a result, these reduce to sixteen independent plane symmetric kinematic self-similar solutions.
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