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Two efficient methods for solving Schlömilch’s integral equation

International Journal of Intelligent Computing and Cybernetics 2017年第3期10卷 287-309页

作者： majeed ahmed al-jawary Ghassan Hasan Radhi Jure Ravnik Department of Mathematics College of Education for Pure Science/Ibn AL-HaithamUniversity of BaghdadBaghdadIraq Faculty of Mechanical Engineering University of MariborMariborSlovenia

Purpose–In this paper,the exact solutions of the Schlömilch’s integral equation and its linear and non-linear generalized formulas with application are solved by using two efficient iterative *** Schlömilch’s integral equations have many applications in atmospheric,terrestrial physics and ionospheric *** describe the density profile of electrons from the ionospheric for awry occurrence of the quasi-transverse *** paper aims to discuss these ***/methodology/approach–First,the authors apply a regularization method combined with the standard homotopy analysis method to find the exact solutions for all forms of the Schlömilch’s integral ***,the authors implement the regularization method with the variational iteration method for the same *** effectiveness of the regularization-Homotopy method and the regularizationvariational method is shown by using them for several illustrative examples,which have been solved by other authors using the so-called regularization-Adomian ***–The implementation of the two methods demonstrates the usefulness in finding exact *** implications–The authors have applied the developed methodology to the solution of the Rayleigh equation,which is an important equation in fluid dynamics and has a variety of applications in different fields of science and *** include the analysis of batch distillation in chemistry,scattering of electromagnetic waves in physics,isotopic data in contaminant hydrogeology and ***/value–In this paper,two reliable methods have been implemented to solve several examples,where those examples represent the main types of the Schlömilch’s integral *** method has been accompanied with the use of the regularization *** process constructs an efficient dealing to get the exact solutions of the linear and non-linear Schlömilch’s integral equation which is easy to *** addition to that,th

关键词： Regularization Homotopy analysis method Schlömilch’s integral equation Variational iteration method

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Value-Based Test Case Prioritization for Regression Testing Using Genetic algorithms

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Computers, Materials & Continua 2023年第1期74卷 2211-2238页

作者： Farrukh Shahzad ahmed Awais majeed Tamim ahmed Khan Department of Software Engineering Bahria UniversityIslamabadCapitalPakistan

Test Case Prioritization(TCP)techniques perform better than other regression test optimization techniques including Test Suite Reduction(TSR)and Test Case Selection(TCS).Many TCP techniques are available,and their performance is usually measured through a metric Average Percentage of Fault Detection(APFD).This metric is value-neutral because it only works well when all test cases have the same cost,and all faults have the same *** APFD for performance evaluation of test case orders where test cases cost or faults severity varies is prone to produce false ***,using the right metric for performance evaluation of TCP techniques is very important to get reliable and correct *** this paper,two value-based TCP techniques have been introduced using Genetic algorithm(GA)including Value-Cognizant Fault Detection-Based TCP(VCFDB-TCP)and Value-Cognizant Requirements Coverage-Based TCP(VCRCB-TCP).Two novel value-based performance evaluation metrics are also introduced for value-based TCP including Average Percentage of Fault Detection per value(APFDv)and Average Percentage of Requirements Coverage per value(APRCv).Two case studies are performed to validate proposed techniques and performance evaluation *** proposed GA-based techniques outperformed the existing state-of-the-art TCP techniques including Original Order(OO),Reverse Order(REV-O),Random Order(RO),and Greedy algorithm.

关键词： Average percentage of fault detection test case prioritization regression testing and value-based testing value-based test case prioritization genetic algorithms

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Angiogenesis Factors Associated with New Breast Cancer Cell Line AMJ13 Cultured <i>in Vitro</i>

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Advances in Breast Cancer Research 2015年第4期4卷 100-108页

作者： ahmed majeed al-Shammari Worod Jawad Kadhim allak Mahfoodha Umran Nahi Y. Yaseen Ayman Hussien Experimental Therapy Department Iraqi Center for Cancer and Medical Genetic Research Al-Mustansiriyah University Baghdad Iraq Biotechnology Department Collage of Science Baghdad University Baghdad Iraq

Background: AMJ13 is a new breast cancer cell line that has been established from a 70-year-old Iraqi woman with a histological diagnosis of infiltrating ductal carcinoma. It is the first for an Iraqi population. In breast cancer, angiogenesis provides the tumor tissue, which is rapidly proliferated with oxygen and nutrients, removes wastes and increases the opportunity of cancer cells to invade other organs. Methods: The AMJ13 breast cancer cell line was represented at three different passages and incubated for interval times. Microarray panel of 43 different angiogenesis markers was used to scan the supernatant for the factors. ELISA was used to quantify some of the important angiogenesis factors released in the culture medium and to confirm absence of those who was not detected by the antibody array. RT-PCR was used to confirm the gene expression (mRNA) of studied factors. Results: Microarray analysis showed that TIMP1 and two secreted at highest levels compared to the rest of the factors with low presence of endostatin. Other non-detectable factors by microarray examined by ELISA assay that showed highest expression level of VEGF-A were obtained at earliest passage, while the highest levels of FGF-b were obtained at late passage. The VEGF-D secretion was shown low concentrations at all studied passages. There is no detectable level of EGF protein in different passages and times interval tested. There are no significant differences in secretion of sICAM between different passages and incubation periods. Conclusion is that AMJ13 cell line depends on VEGF-A as main angiogenesis factor to induce micro-vessels supported by low levels of VEGF-D for lymphatic vessels formation. AMJ13 cell line depends on FGF as growth factors as in late passages it was shifted to depend mainly on FGF completely. all of this process may be regulated by TGF-β. TIMP-1 has proangiogentic effect and has feedback talk with TIMP-2. Understanding the angiogenesis process for breast cancer can

关键词： Angiogenesis Factors Breast Cancer Cell AMJ13 Tumor Tissue

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BM-MSCs Differentiated Insulin-Producing Cells Produce More Insulin in Presence of EGF than of FGF

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Stem Cell Discovery 2015年第4期5卷 33-39页

作者： Cheia majeed ahmed M. al-Shammari Eman H. Yausif Nahi Y. Yaseen Ayman ali Husien Rajha A. al-Naimi Adnan Ajeel Department of Pathology College of Veterinary Medicine Baghdad University Baghdad Iraq Experimental Therapy Department Iraqi Center for Cancer and Medical Genetic Research Al-Mustansiriya University Baghdad Iraq

Adult stem cells have the ability to differentiate into islet like cells for the hope of treating diabetes mellitus (DM). The most important part is the differentiation process from na?ve stem cells to fully differentiated fully functional islet cells. For this purpose, we wanted to optimize the current proposed differentiation media by replacing the FGF with EGF and measure insulin production. Bone marrow-derived MSCs were from mice long bones and expanded in cell culture before induction of differentiation. Stem cells surface markers were analyzed by immunocytochemistry. Cultured stem cells were negative for CD34 while they expressed high levels of CD90. Differentiated cells morphology was studied by using H & E stain. Differentiated cells were detected by studying protein expression of insulin as specific marker for IPC differentiation. Cells function was studied by measuring the insulin production in tissue culture supernatant in vitro and also insulin release in response to glucose challenge. Ditizone staining were both positive. Insulin was secreted by these cells in response to different concentrations of glucose stimulation in a regulated manner. Cells induced with formula contain EGF produced more insulin in the same formula but contain FGF instead, this prove that EGF is the best to use during differentiation process.

关键词： Diabetes Mellitus Pancreatic β Cells Growth Factors

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Comparison of Shisha Smoking Behavior among Medical and Pharmacy Students

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Journal of Behavioral and Brain Science 2016年第7期6卷 269-279页

作者： Ashok Kumar Salman Baig Sana Ansari Nadeem Rizvi Huma Sharif Anwar Ejaz Beg Ammara Rauf Faraz ahmed Baig Ammara Abdul majeed Ziauddin Hospital Karachi Pakistan Sindh Medical College Karachi Pakistan

Background: Health care workers are respected in every society and have a strong influence on the behaviour of the community. In order to reduce the shisha dependence in the Pakistani population, it is necessary to evaluate the perspective of future doctors and pharmacists regarding this addiction as they become role models for the future generations. Objective: The aim is to compare the knowledge, attitudes, and practices of shisha use among medical students and pharmacy students in order to assess their support in the anti-shisha campaigns of Pakistan. Methodology: Cross sectional study was performed in four major medical universities of Karachi, Pakistan through a modification of the WHO global health survey questionnaire. Result: 398 medical students and 470 pharmacy students were included in the study which showed that currently 9.6% pharmacy students and 4.8% medical students used shisha daily (p = 0.000). Pharmacy students started shisha use in less than 15 years of age while this number was 29.5% among medical students (P = 0.000). Moreover, 44.6% pharmacy students and 50% medical students were not planning to quit this addiction within the next six months. 14% of pharmacy students and 20.4% in medical students (P = 0.002) were unaware that passive smoking caused lung cancer, while 23.4% pharmacy students and 33.5% medical students rejected it as cause of heart diseases (p = 0.006). Conclusion: A significant number of medical and pharmacy students were unaware about some of the serious consequences of shisha smoking. Therefore, both groups of students need to be educated about the health hazards of shisha use, in order to control this growing menace.

关键词： Shisha Smoking Tobacco Students

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Targeting KRAS in pancreatic adenocarcinoma:Progress in demystifying the holy grail

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世界临床肿瘤学杂志:英文版 2023年第8期14卷 285-296页

作者： ahmed Elhariri ahmed alhaj Daniel Ahn Mohamad Bassam Sonbol Tanios Bekaii-Saab Christina Wu Michael Scott Rutenberg John Stauffer Jason Starr Umair majeed Jeremy Jones Mitesh Borad Hani Babiker Division of Hematology-Oncology Department of MedicineMayo Clinic FloridaMayo Clinic Cancer CenterJacksonvilleFL 32224United States Division of Hematology-Oncology Department of MedicineMayo Clinic ArizonaMayo Clinic Cancer CenterPhoenixAZ 85054United States Department of Radiation-Oncology Mayo Clinic FloridaMayo Clinic Cancer CenterJacksonvilleFL 32224United States Department of Surgical Oncology Hepatopancreatobiliary SurgeryMayo Clinic FloridaJacksonvilleFL 32224United States

Pancreatic cancer(PC)remains one of the most challenging diseases,with a very poor 5-year overall survival of around 11.5%.Kirsten rat sarcoma virus(KRAS)mutation is seen in 90%-95%of PC patients and plays an important role in cancer cell proliferation,differentiation,metabolism,and survival,making it an essential mutation for targeted *** extensive efforts in studying this oncogene,there has been little success in finding a drug to target this pathway,labelling it for decades as“undruggable”.In this article we summarize some of the efforts made to target the KRAS pathway in PC,discuss the challenges,and shed light on promising clinical trials.

关键词： Kirsten rat sarcoma virus Targeted therapy Pancreatic cancer Drug resistance Next generation sequencing Clustered regularly interspaced short palindromic repeats

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Sensitivity and Specificity of Various Serological Tests for Detection of Brucella spp. Infection in Male Goats and Sheep

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Advances in Microbiology 2016年第2期6卷 98-103页

作者： Waffa A. ahmed Shaimaa A. majeed Ameer H. Abdul Ameer Nawal D. Mahmmod Nameer I. Saeed Luma. Y. Hanaa Zoonosis Diseases Unit College of Veterinary Medicine Baghdad University Baghdad Iraq Ministery of Agriculture Agriculture Research Office Baghdad Iraq Vet Research & Laboratories Department Baghdad Iraq

Brucellosis is a zoonosis found throughout the world with major implications both in the field of public health and farming economy. It is most often caused by Brucella abortus and Brucella melitensis. This study aimed for evaluation of the sensitivity and specificity of immunochromatographic assay (ICA) and comparing the results with those obtained from Rose Bengal Plate Test (RBPT) and in direct Enzyme Linked Immunsorbent Assay (ELISA) for serodiagnosis of sheep and goat brucellosis. Out of 41 sera samples (21 ram and 20 male goats) which were examined, antibodies against Brucella were detected in ram 8 (38.09%), 6 (28.57%) and 16 (76.19%) in ram samples, whereas they were detected in 3 (15%), 1 (5%) and 12 (60%) serum sample of goats males by RBPT, (ICA) and iELISA respectively. The kappa value between iELISA and ICA was -0.08 and that between RBPT and ELISA was -0.01 in ram and the kappa value between iELISA and ICA was -0.06 and that between RBPT and ELISA was -0.14 in male goats. The sensitivity for RBPT and ICA were 37.5% and 25% while specificity was 60% and 60% in ram;whereas, in male goats, sensitivity for RBPT was 8.33% and ICA was 8.33% while specificity was 75% and 100% respectively. It can be concluded that the developed ICA is immunodiagnostic assay, and it is rapid, non-expensive, economical and suitable for large-scale screening in developing countries and rural areas.

关键词： Brucellosis RBPT ICA iELISA Sheep Goat

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Conception the Fluid Flow Behavior within Oil Reservoir Rock by Using Computed Tomography(CT)Scan

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Journal of Mechanical Engineering Research 2021年第2期4卷 11-20页

作者： Amani J.majeed Falah A Abood ahmed K.alshara Petroleum Engineering Department University of BasrahIraq Mechanical Engineering Department University of BasrahIraq Mechanical Engineering Department University of MisanIraq

The behavior of fluid flow has been studied during the different flow media over the past *** addition,the behavior of the flow of fluid through porous media has garnered much research *** paper sheds light on fissured rocks of oil reservoir media(as one of the porous media domain),and the effect of these fissured on fluid *** this article,the Finite Volume Method(FVM)has been used to visualize the behavior of single-phase fluid flow in an actual core according to the dual-porosity dual permeability *** study was conducted in two parts,the first was the image processing for one of the real oil reservoir fractured rock images,where the image was processed and simulated by ANSYS-CFX software,and the results showed a complete visualizing of the fluid behavior during this *** for the other side,a simulation of a real reservoir rock belonging to the al-Nour field in Iraq/Misan was *** X-ray Computed Tomography(CT)scan has been used to convert the real fractured core to a dynamic ***-CFX program has been used and the results illustrated the pressure counter,the velocity counter,the velocity streamline,and the velocity vectors for the studied model in three dimensions.A comparison was made between the productivity index for fractured and non-fractured rock and the results explained that the presence of fracture can improve the productivity index to about 5.74%.

关键词： Computed Tomography(CT)scan al-Nour field Fluid flow

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Combined anterior and posterior ring fixation versus posterior ring fixation alone in the management of unstable Tile B and C pelvic ring injuries:A randomized controlled trial

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Chinese Journal of Traumatology 2023年第1期26卷 48-59页

作者： Islam Sayed Moussa ahmed Mohammed Sallam Amr Khairy Mahmoud Elzaher Hassan Elzaher Amr Mohammed Nagy ahmed Salem Eid Department of Orthopedics and Traumatology Faculty of MedicineAin Shams UniversityCairo11522Egypt

Purpose: Combined anterior and posterior ring (APR) fixation is classically performed in Tile B2 and C1 injuries to achieve superior biomechanical ***,the posterior ring (PR) is the main weight bearing portion that is responsible for weight transmission from the upper parts of the body to the lower limbs through the sacrum and the linea *** is hypothesized that isolated PR fixation can achieve comparable radiological and clinical outcomes to APR ***,we conducted this study to compare the two fixation principles in managing Tile B2 and C1 ***: Our study included 20 patients with Tile B2 injuries and 20 patients with Tile C1 *** study was a randomized control single-blinded study via computerized random numbers with a 1:1 allocation by using random block *** study was performed at a level one trauma center.A total of 40 patients with Tile B2 and C1 injuries underwent combined APR or isolated PR fixation (Group A and B,respectively).Matta & Tornetta radiological principles and majeed pelvic scoring system were used for the assessment of primary outcomes and postoperative *** outcomes included operative time,amount of blood loss,intraoperative assessment of reduction,need of another operation,length of hospital stay,ability to weight bear postoperatively and pain control *** used studentt-test to compare the difference in means between two groups,and Chi-square test to compare proportions between two qualitative *** set the confidence interval to 95% and the margin of error accepted to 5%.So,p ≤ 0.05 was considered statistically ***: The mean follow-up duration was 18 *** operative time (mean difference 0.575 h) and the intraoperative blood loss (mean difference 97.5 mL) were lower in Group ***,despite the higher frequency of rami displacement before union in the same group,there were no significant differences in terms of radiological outc

关键词： Tile B2 and C1 injuries Percutaneous sacroiliac screw Posterior ring fixation Radiological outcome majeed pelvic score

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Growth Performance,Physicochemical Properties of Meat of Broiler Chicken’s Supplemented with Bacillus pumilus

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Journal of Zoological Research 2021年第4期3卷 12-18页

作者： Masroor ali Bughio Uroosa majeed Gulfam ali Mughal Ghulam Shabir Barham Dildar Hussain Kalhoro Mansoor Tariq Samo Shoaib ahmed Pirzado Postgraduate Laboratory of Animal Nutrition Department of Animal NutritionSindh Agriculture University TandojamSindh70060Pakistan

This study examined that the efficiency of Bacillus pumilus(BP)on growth performance and meat quality of broiler chickens.A total of day old 240 male broiler chicks were purchased from local hatchery *** chicks were allocated into four groups with six replicates of 10 birds in each *** diets were prepared for experiment,which included control as basal diet,BP-0.1(CONT+0.1%BP),BP-0.2(CONT+0.2%BP)and AGP(CONT+zinc bacitracin 20 ppm)as antibiotic growth *** results showed that live body weight(LBW),average daily gain was recorded higher(Palso increased in BP-0.1 than control ***-0.1 supplementation significantly reduced feed conversion ratio(FCR)than other groups(Pal properties of meat.

关键词： Growth performance Meat quality Bacillus pumilu Probiotics Broilers

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