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Postnatal ex vivo rat model for longitudinal bone growth investigations

Animal Models and Experimental Medicine 2019年第1期2卷 34-43页

作者： Adamu Abdul Abubakar Sahar Mohammed Ibrahim ahmed khalaf ali Kareem Obayes Handool Mohammad Shuaib Khan Mohamed Noordin Mustapha Tengku Azmi Ibrahim Ubedullah Kaka Loqman Mohamad Yusof Department of Companion Animal Medicine and Surgery Universiti Putra Malaysia Department of Veterinary Surgery and Radiology Usmanu Danfodiyo University Department of Surgery and Theriogenology College of Veterinary Medicine University of Mosul Faculty of Veterinary and Animal Science Gomal University Department of Veterinary Pathology and Microbiology Universiti Putra Malaysia Department of Pre-Clinical Veterinary Sciences Universiti Putra Malaysia Laboratory of Sustainable Animal Production and Biodiversity Institute of Tropical Agriculture and Food SecurityUniversiti Putra Malaysia

Background: Chondrocytes in the growth plate(GP) undergo increases in volume during different cascades of cell differentiation during longitudinal bone growth. The volume increase is reported to be the most significant variable in understanding the mechanism of long bone ***: Forty-five postnatal Sprague-Dawley rat pups, 7-15 days old were divided into nine age groups(P7-P15). Five pups were allocated to each group. The rats were sacrificed and tibia and metatarsal bones were harvested. Bone lengths were measured after 0, 24, 48, and 72 hours of ex vivo incubation. Histology of bones was carried out, and GP lengths and chondrocyte densities were ***: There were significant differences in bone length among the age groups after 0 and 72 hours of incubation. Histological sectioning was possible in metatarsal bone from all age groups, and in tibia from 7-to 13-day-old rats. No significant differences in tibia and metatarsal GP lengths were seen among different age groups at 0 and 72 hours of incubation. Significant differences in chondrocyte densities along the epiphyseal GP of the bones between 0 and 72 hours of incubation were observed in most of the age ***: Ex vivo growth of tibia and metatarsal bones of rats aged 7-15 days old is possible, with percentage growth rates of 23.87 ± 0.80% and 40.38 ± 0.95%measured in tibia and metatarsal bone, respectively. Histological sectioning of bones was carried out without the need for decalcification in P7-P13 tibia and P7-P15 metatarsal bone. Increases in chondrocyte density along the GP influence overall bone elongation.

关键词： bone growth model chondrocytes endochondral ossification growth plate Sprague-Dawley rat

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Multi-Stage Image Compression-Decompression System Using PCA/IPCA to Enhance Wireless Transmission Security

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Journal of Computer and Communications 2022年第4期10卷 87-96页

作者： ali A. Ibrahim Thura ali khalaf Bashar Mudhafar ahmed Al-Nahrain University Baghdad Iraq

The goal of this paper is to propose a fast and secure multi-stage image compression-decompression system by using a wireless network between two Personal Computers (PCs). In this paper, the Principal Component Analysis (PCA) technique is used for multi-stage image compression and Inverse Principal Component Analysis (IPCA) for multi-stage image decompression. The first step of the proposed system is to select the input image, the second step is to perform PCA up to 9 times on the input image, this compression, and after multi-stage compression process then the third step begins by transforming across wireless Ad hoc Network (WANET) to the second computing device, forth step start with multi-stage decompression process up 9 times. The proposed system for different images is transferred over the wireless network using Transmission Control Protocol/Internet Protocol (TCP/IP), which is programmed using the network role property of the MATLAB program. The proposed system implements 25 different images correctly (100%). The main contribution of this paper is that we are dealing with the black image at the end of the compressed process ad start with a black image at the start of the decompressed process of this proposed system. In this work, the compressed and uncompressed images are compared with each other in their size and transmission time. This system can be very useful in networks because they provide a high level of protection to the transmitted data from hackers because they cannot guess how much the image has been compressed or what kind of information the image represents.

关键词： Principle Component Analysis Inverse Principle Component Analysis Wireless Ad Hoc Network Transmission Control Protocol/Internet Protocol

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Design and Implementation of Iris Pattern Recognition Using Wireless Network System

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Journal of Computer and Communications 2016年第7期4卷 15-21页

作者： ali Abdulhafidh Ibrahim Thura ali khalaf Bashar Mudhafar ahmed College of Science Al-Nahrain University Baghdad Iraq College of Information Engineering Al-Nahrain University Baghdad Iraq College of Engineering Al-Nahrain University Baghdad Iraq

The goal of this paper is to propose a fast and accurate iris pattern recognition system by using wireless network system. This paper consists of three parts: the first part includes two methods of the iris pattern recognition system: Libor Masek and genetic algorithms, the second part includes the compression-decompression process of iris image using Principal Component Analysis (PCA) as a data reduction method, in order to reduce image size, and the third part talks about wireless network. In this work, an iris image is transferred across wireless network which contains two independent-parallel lines connected to the central Personal Computer (PC) in order to be recognized at the end of each line, then the results of recognition are sent back to the central PC. The proposed genetic algorithm, which is used in this paper is more accurate than Masek algorithm and has low computational time and complexity, which makes this method better than Masek method in recognizing iris patterns.

关键词： Iris Recognition Genetic Algorithm Principal Components Analysis Wireless Network

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QoS in FANET Business and Swarm Data

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Computers, Materials & Continua 2022年第7期72卷 1877-1899页

作者： Jesús Hamilton Ortiz Carlos Andrés Tavera Romero Bazil Taha ahmed Osamah Ibrahim khalaf Close Mobile R&D Telecommunications LS MadridEspaña COMBA I+D Research Group of Universidad Santiago de Cali CaliColombia Autonomous of Madrid University MadridEspaña Al-Nahrain Nanorenewable Energy Research Center in Al-Nahrain University BagdadIraq

This article shows the quality of services in a wireless swarm of drones that form an ad hoc network between them Fly Ad Hoc Networks(FANET).Each drone has the ability to send and receive information(like a router);and can behave as a hierarchical node whit the intregration of three protocols:Multiprotocol Label Switch(MPLS),Fast Hierarchical AD Hoc Mobile(FHAM)and Internet Protocol version 6(IPv6),in conclusion MPLS+FHAM+*** metrics analyzed in the FANET are:delay,jitter,throughput,lost and sent packets/*** process was carried out with swarms composed of 10,20,30 and 40 units;In this work,the stage with 40 droneswas analyzed showing registration processes,and sentmessages sequences between different drones that were part of the same swarm.A special analysis about the traffic between drones(end-to-end)was carried out,as well as the possible security flaws in each drone and the current status and future trends in real *** future trends,in a real environment,we took as a starting point,metrics results obtained in the simulation(positive according to the obtained results).These results gave us a clear vision of how the network will behave in a real environment with the aim to carry out the experiment on a physical level in the near *** work also shows the experience quality from the service quality metrics obtained through a mathematical *** quality of experience model will allow us to use it objectively in the agricultural sector,which is a great interest area and is where we are working with *** in this article we show our advances for a business model applied to the aforementioned agricultural sector,as well as the data analysis and services available to the end *** services available to the end customer have been classified into a basic,medium,advanced and plus level.

关键词： Ad hoc home agent(AHA) ad hoc mobile node(AMN) ad hoc correspondent node(ACN) ad hoc mobile anchor point(AMAP) fast hierarchical AD hoc mobile IPv6(FHAMIPv6) label switching router(LSR)label edge router(LER) mobile ad hoc networks(MANET)fly ad hoc network(FANET) quality of services(QoS) quality of experience(QoE)

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Magnet Attract Shell during Head and Neck Surgery

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International Journal of Otolaryngology and Head & Neck Surgery 2019年第5期8卷 171-179页

作者： ahmed khalaf Rabeea M.B.CH.B High Diploma Otolaryngology Department of Otolaryngology Salahaden General Hospital Tikrit Iraq

Objective: New method to use magnet for localization and extraction of shell during head and neck surgery. Method: Series of 3 cases study all are boy’s 17_15_5 years old respectively. All are with penetrating shell injuries to head and neck in Salahaden General Hospital-Tikrit city-Iraq from 25-Oct.-2016 to 30 March 2017. This hospital is a central general governmental hospital that receives referral cases from region distal to the center of Salahaden province at north of Baghdad city (capital of Iraq) and plays a major rule in management of injured patient during war. The cases are selected after explanation of this new method to the patients, it is expected result, risk, possible complication, and unexpected sequelae that may happen after surgery. Prior consent from patients and their families about this sort of surgery has been got. These patients are from families of low socio economic group except the last one he is medium class. All are undergoing surgical management with the aid of magnet. Result: we have 3 cases of shell injuries to head and neck magnet is used successfully for identification of shells and helps in their extraction. Our trial is limited for metallic objects and limited depth. Conclusion: These results suggest that magnet aid removal of shell during head and neck surgery, is less invasive technique, minimal trauma to the surrounding tissues and reducing time of surgery.

关键词： Magnet Shell Injuries Head and Neck

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Synchronization Phenomena Investigation of a New Nonlinear Dynamical System 4D by Gardano’s and Lyapunov’s Methods

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Computers, Materials & Continua 2021年第3期66卷 3311-3327页

作者： Abdulsattar Abdullah Hamad ahmed S.Al-Obeidi Enas H.Al-Taiy Osamah Ibrahim khalaf Dac-Nhuong Le School of Mathematics Madurai Kamaraj UniversityMadurai625021India Specialty of Mathematics Gifted School of NinevehMosulIraq Al-Nahrain University Baghdad70030Iraq Institute of Research and Development Duy Tan UniversityDanang550000Vietnam Faculty of Information Technology Duy Tan UniversityDanang550000Vietnam

Synchronization is one of the most important characteristics of dynamic *** this paper,the authors obtained results for the nonlinear systems controller for the custom Synchronization of two 4D *** findings have allowed authors to develop two analytical approaches using the second Lyapunov(Lyp)method and the *** the Gardano method does not involve the development of special positive Lyp functions,it is very efficient and convenient to achieve excessive systemSYCR *** is overcome by using Gardano and overcoming some problems in *** we get a great investigation into the convergence of error dynamics,the authors in this paper are interested in giving numerical simulations of the proposed model to clarify the results and check them,an important aspect that will be studied is Synchronization Complete hybrid SYCR and anti-Synchronization,by making use of the Lyapunov expansion analysis,a proposed control method is developed to determine the *** basic idea in the proposed way is to receive the evolution of between two ***,the present model has been applied and showing in a new attractor,and the obtained results are compared with other approximate results,and the nearly good coincidence was obtained.

关键词： Chaos Lu model anti-synchronization hybrid synchronization Gardano’s method nonlinear dynamical system

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Colorectal cancer in Arab world:A systematic review

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World Journal of Gastrointestinal Oncology 2021年第11期13卷 1791-1798页

作者： Nahed A Makhlouf Muhammad Abdel-Gawad Aya M Mahros Sameh A Lashen Mariam Zaghloul ahmed Eliwa Eman E Elshemy Zainab ali-Eldin Doaa Abdeltawab Fathiya El-Raey Dalia Omran Marwa khalaf Nancy Fanous ahmed Shawkat Abdelmohsen ahmed Abu-Elfatth Mohamed Abdelghani Mahmoud Farouk Mohamed Abdelaziz Mohamed Alboraie Department of Tropical Medicine and Gastroenterology Faculty of MedicineAssiut UniversityAssiut 71515Egypt Department of Hepatology Gastroenterologyand Infectious DiseasesAl-Azhar UniversityAssiut 71631Egypt Department of Hepatology Gastroenterology and Infectious DiseasesKafrelsheikh UniversityKafrelsheikh 33656Egypt Department of Internal Medicine Alexandria UniversityAlexandria 21521Egypt Department of Internal Medicine Al-Azhar UniversityCairo 11884Egypt Department of Hepatogastroenterology and Infectious Diseases Al-Azhar UniversityCairo 11651Egypt Department of Internal Medicine Ain Shams UniversityCairo 11646Egypt Department of Hepatogastroenterology and Infectious diseases Faculty of MedicineAl-Azhar UniversityDamietta 34511CairoEgypt Department of Endemic Medicine Cairo UniversityCairo 12613Egypt Department of Tropical Medicine and Gastroenterology Assiut Liver CenterAssiut 71511Egypt Department of Gastroenterology Hepatology and EndoscopyPolice Authority HospitalCairo 12654Egypt Department of Clinical Oncology and Nuclear Medicine Al-Azhar UniversityCairo 11824Egypt

BACKGROUND The incidence of colorectal cancer(CRC)is increasing among young individuals in the Arab world as well as in other regions of the *** To explore the incidence and prevalence of CRC in the Arab *** The PubMed,Scopus,Web of Science,EBSCO and Wiley databases were searched to retrieve relevant articles irrespective of the language or the publication *** search terms were("colon OR rectum OR sigmoid OR rectal OR colonic OR colorectal")AND("cancer OR malignancy OR malignant OR neoplasm")AND("Jordan"OR"United Arab Emirates"OR"Bahrain"OR"Tunisia"OR"Algeria"OR"Djibouti"OR"Saudi Arabia"OR"Sudan"OR"Syria"OR"Somalia"OR"Iraq"OR"Oman"OR"Palestine"OR"Qatar"OR"Comoros"OR"Kuwait"OR"Lebanon"OR"Libya"OR"Egypt"OR"Morocco"OR"Mauritania"OR"Yemen").Reviews,metaanalyses,and articles containing nonoriginal data were *** articles were screened,and relevant data were *** statistics were used for data *** Nine studies were *** of the studies provided information regarding the prevalence of *** prevalence of CRC was 0.72% in Saudi Arabia and 0.78% in the United Arab Emirate,while in Egypt,it ranged from 0.4% to 14%.Four studies showed information regarding the *** annual incidence rate of CRC in Qatar was 7.5/100000/*** Egypt,the crude incidence rate(CIR)in males was 3.1 for colon cancer and 1 for rectal cancer,while in females,it was 2.3 for colon cancer and 0.8 for rectal *** age-standardized rate for CRC incidence in 2003 was 36.90 for males,26.50 for females,and 30.49 for both sexes in Saudi *** 2016,the CIRs in Saudi Arabia were 3.6 and 2.1 in females for colon cancer and rectal cancer,respectively,while in males,it was 3.3 and 2.8 for colon cancer and rectal cancer,*** study in Egypt revealed that 25% of CRC cases occurred among individuals younger than 40 years *** There is a considerable prevalence of CRC in some Arab *** studies are n

关键词： Colorectal cancer Incidence Prevalence Arab world

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Secure Cancelable Template Based on Double Random Phase Encoding and Entropy Segmentation

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Computers, Materials & Continua 2022年第11期73卷 4067-4085页

作者： ahmed M.Ayoup Ashraf A.M.khalaf Fathi E.Abd El-Samie Fahad Alraddady Salwa M.Serag Eldin Faculty of Engineering Electrical Engineering DepartmentMinia UniversityMinia61111Egypt Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenoufia32952Egypt Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif 21944Saudi Arabia

In this paper,a proposed cancellable biometric scheme is based on multiple biometric image identifiers,Arnold’s cat map and double random phase encoding(DRPE)to obtain cancellable biometric *** proposed segmentation scheme that is used to select the region of interest for generating cancelable templates is based on chaos entropy low correlation statistical *** objective of segmentation is to reduce the computational cost and reliability of template *** left and right biometric(iris,fingerprint,palm print and face)are divided into non-overlapping blocks of the same *** define the region of interest(ROI),we select the block with the highest *** shorten the registration process time and achieve a high level of security,we select 25%of the image volume of the biometric *** addition,the low-cost security requirement lies in the use of selective encryption(SE)*** step of selecting the maximum entropy is executed on all biometric *** maximum right and left multi-biometric blocks are arranged in descending order from the entropy perspective and select 50%of each biometric couple and store the single *** obtained matrix is scrambled with a certain number of iterations using Arnold’s Cat Map(ACM).The obtained scrambled matrix is encrypted with the DRPE to generate the cancellable biometric templates,which are further *** simulation results display better performance of the suggested cancellable biometric system in noise scenarios using the area under the receiver operating characteristic(AROC).The strength of the suggested technique is examined with correlation,irregular deviation,maximum difference and maximum *** recommended proposed approach shows that the ability to distinguish the authentic and imposter biometrics of user seven in different levels of the noise environment.

关键词： Image identifier computation segmentation ACM (DRPE)

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Data Analytics for the Identification of Fake Reviews Using Supervised Learning

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Computers, Materials & Continua 2022年第2期70卷 3189-3204页

作者： Saleh Nagi Alsubari Sachin N.Deshmukh ahmed Abdullah Alqarni Nizar Alsharif Theyazn H.H.Aldhyani Fawaz Waselallah Alsaade Osamah I.khalaf Department of Computer Science&Information Technology Dr.Babasaheb Ambedkar Marathwada UniversityAurangabadIndia Department of Computer Sciences and Information Technology Albaha UniversitySaudi Arabia Department of Computer Engineering and Science Albaha UniversitySaudi Arabia Community College of Abqaiq King Faisal UniversityAl-AhsaSaudi Arabia College of Computer Science and Information Technology King Faisal UniversityAl-AhsaSaudi Arabia Al–Nahrain University BagdadIraq

Fake reviews,also known as deceptive opinions,are used to mislead people and have gained more importance *** is due to the rapid increase in online marketing transactions,such as selling and purchasing.E-commerce provides a facility for customers to post reviews and comment about the product or service when *** customers usually go through the posted reviews or comments on the website before making a purchase ***,the current challenge is how new individuals can distinguish truthful reviews from fake ones,which later deceives customers,inflicts losses,and tarnishes the reputation of *** present paper attempts to develop an intelligent system that can detect fake reviews on ecommerce platforms using n-grams of the review text and sentiment scores given by the *** proposed methodology adopted in this study used a standard fake hotel review dataset for experimenting and data preprocessing methods and a term frequency-Inverse document frequency(TF-IDF)approach for extracting features and their *** detection and classification,n-grams of review texts were inputted into the constructed models to be classified as fake or ***,the experiments were carried out using four different supervised machine-learning techniques and were trained and tested on a dataset collected from the Trip Advisor *** classification results of these experiments showed that na飗e Bayes(NB),support vector machine(SVM),adaptive boosting(AB),and random forest(RF)received 88%,93%,94%,and 95%,respectively,based on testing accuracy and tje *** obtained results were compared with existing works that used the same dataset,and the proposed methods outperformed the comparable methods in terms of accuracy.

关键词： E-commerce fake reviews detection methodologies machine learning hotel reviews

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Hepatocellular adenoma: An update

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World Journal of Hepatology 2015年第25期7卷 2603-2609页

作者： Adarsh Vijay ahmed Elaffandi Hatem khalaf Hamad Medical Corporation National Cancer Institute Cairo University

Hepatocellular adenomas(HCA) are rare benign liver *** technological advancements have helped in the early identification of such ***,precise diagnosis of hepatocellular incidentalomas remains *** at the molecular level have provided new insights into the genetics and pathophysiology of these *** in turn have raised questions over their existing management ***,the rarity of the tumor still restricts the quality of evidence available for current recommendations and *** article provides a comprehensive review on the etiology,molecular biology,pathophysiology,clinical manifestations,and complications associated with *** also elaborates on the genetic advancements,existing diagnostic tools and current guidelines for management for such lesions.

关键词： Liver adenoma Focal liver lesion Benignliver lesion

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