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No full textchoosing the right career is a key decision in achieving a happy and fulfilling life. think carefully and choose wisely. Engineering & Technology might be your right choise if you: Like to build and demolish. Have an innate curiosity about how things work. Are good at problen solving and possess logical thinking abilities. enjoy working as a part of a team. Like to tackle challenging problems. Have drawing skills. Have time management skills. Want to make a difference to the lives of individuals and society as whole
Clinical and radiographic peri-implant variables around short dental implants in type 2 diabetic, prediabetic, and non-diabetic patients
No full textBackground: Clinical and radiographic status around short dental implants in patients with different glycemic levels remains unexplored.Purpose: To determine the clinical and radiographic bone level (RBL) around short dental implants in type-2 diabetes mellitus (T2DM), prediabetic, and non-diabetic patients.Materials and Methods: Participants were grouped into three groups based on HbA1c levels: T2DM (Group-1); prediabetic patients (Group-2); and non-diabetic subjects (Group-3). Clinical recordings included the assessment of peri-implant plaque index (PI), bleeding on probing (BOP), probing depth (PD). Radiographic analysis included evaluation of standardized periapical digital radiographs using specialized software and image analyzer.Results: Clinical peri-implant parameters including PI and BOP were statistically significantly higher in group-1 (P < .01) and group 2 (P < .05) as compared to group-3. Mean PD was statisti- cally significantly higher in group-1 patients compared to group-3 (P < .01). Radiographic bone loss was significantly higher in both group-1 (P < .01) and group-2 (P < .05) patients as com- pared to patients in group 3. RBL showed statistically significant difference among T2DM patients even after adjusting for HbA1c, total cholesterol, and body mass index (P < .05) and statistically significant difference in prediabetic patients after adjusting for only HbA1c (P < .05). Conclusion: Clinical and radiographic peri-implant parameters are compromised around short dental implants in type-2 diabetes mellitus patients. Further longitudinal studies are needed to compare clinical performance of short dental implants with standard dental implants placed in patients with different glycemic level
Effect of Surface Treatment Protocols on Bonding of Resin Luting Agents to Zirconia Based Ceramics
No full textPurpose: Establishing a reliable adhesive bond to zirconia-based materials is always a challenge. The purpose of this study was to evaluate the micro-shear bond strength of conventional and self-adhesive resin cements to zirconium oxide ceramic after different surface treatments. Material and Methods: Yttrium stabilized zirconia ceramic plates of dimensions 10 mm width × 10 mm length × 1 mm thickness were fabricated by a CAD/CAM process. The plates were divided into three groups according to surface treatments performed: (1) no treatment (NT); (2) airborne-particle abrasion with 110-μm alumina particles (SB); (3) silica coating with Cojet system (CT) (3M/ ESPE, USA). Each group was then divided into two subgroups according to type of resin cement; Panavia F 2.0 (Kurary, Japan) and RelyXUnicem (3M/ESPE, USA). Ten composite resin cylinders (0.75 - mm diameter × 0.5 - mm height) were bonded to each ceramic plate (N = 10), and each specimen was subjected to a shear load at a crosshead speed of 0.5 mm/min until fracture occurred. The fracture sites were examined with scanning electron microscopy (SEM) to detect the mode of failure. Data were statistically analyzed using two-way ANOVA and multiple comparisons were made using Fisher’s test at p < 0.05. Results: Micro-shear bond strength was significantly affected by the surface treatment and by the type of resin cement. Panavia F 2.0 showed higher significant results in comparison to RelyXUnicem. Surface treatment with CT was highly significant with both ce- ments, followed by SB and then by NT. SEM examination revealed predominantly cohesive failures within the resin cements for CT group, mixed failures within SB group and predominantly adhesive failure at the interfacial area within NT group. Conclusions: The micro-shear bond strength of resin cement to partially stabilized zirconia ceramics varied significantly depending on the type of resin luting agent and surface treatment method. The tribochemical silica coating of zirconia surfaces in combination with MDP-containing resin cement (Panavia F 2.0) showed a superior performance
Determination of Mesenchymal Stem Cell Origin during Bleeding-Induced Regenerative Endodontic Procedure Using 2-Step Real-Time Reverse-Transcription Polymerase Chain Reaction (qRT-PCR)
No full textIntroduction: This study evaluated possible stem cells origin during regenerative endodontic procedure, whether from surviving dental pulp stem cells within disinfected root canals walls or from stem cells of apical tissues or they act synergistically. Methods: Immature necrotic permanent single rooted-teeth (n = 30) of patients (n = 24) 7-18 years old were divided into two groups according to presence or absence of apical radiolucency: group A with apical radiolucency and group B with healthy periodontium. After informed consent, two-sessions regenerative endodontic protocol was implemented. First session root canals were disinfected using 1.5% NaOCl irrigate and Bimix medicament for 3 weeks. Second session root canals were irrigated using 17% EDTA followed by a final saline rinse. Saline samples were collected from disinfected root canals using sterile paper points. Periodontium was apically stimulated using hand files until bleeding reached the cementoenamel junction for the assumed stem cells delivery. Blood samples were collected from root canals using sterile paper points. The expression of specific mesenchymal stem cell gene markers; CD105 and CD73 was assessed using 2-step qRT-PCR relative to infected root canals. Mann-Whitney U test was used for comparison. Statisti- cal significance was set at “p ≤ 0.05”. Results: In group A, the fold increase for CD105 and CD73 in saline samples were 19.6% and 7.6%, respectively, while the fold in- crease in blood samples were 26.6% and 17.8% with statistically significant difference, P-value < 0.001. Same trend was observed in group B, the fold increase for CD105 and CD73 in saline samples were 20.2% and 8%, respectively, while the fold increase in blood samples were 26.2% and 17.6% with statistically significant difference, P-value < 0.001
Electrical distribution in a hospital
No full textDistribution system is one of the greatest industrial systems in the world With the progress of human civilization, there has been a rapid increase in the production and use of electrical energy No one can deny the foremost importance of the electrical energy in our life. Nowadays, we can say that the industry depends mainly on electrical energy Besides, it is the main source of energy for lighting and all other machines that people need in their different activities. When designing a commercial power system, special studies, Experiences & Know agent's must be comprised to evaluate the best performance of the system either at present or at future. A lot of terms should be taken into consideration to achieve the desired goals of constructing such a system. These terms may comprise safety, reliability, adequate cost, high performance & ease of maintenance. The main advantages of the electrical energy are the simplicity in transmission and easiness in conversion to any other form of energy, for example: light, heat, motion.. etc. L1. Electric power system includes: -Generation stations -Transmission system. -Distribution system. We are concerned in our project with the distribution system. The distribution system included Primary Distribution System, which transmits the power from the distribution substations to the distribution transformers and Secondary Distribution System, which transmits the power from the distribution transformers to the consumers. And as we know that when the electric energy flows in a conductor it suffers from voltage drop (A) and power losses ( / L ) where ( sr - IR and Pau : PR so we have to decrease the disadvantages, but in the same time we want to transmit a large power (P) where Pal so the only solution is to increase the voltage. and so we have to decrease the current to limit theseMohamed Ezza
Graduation project 2018 Group G15
No full textThis paper aims to examine the uses and limitations of value added tax in Egypt The research uses the primary approach in collecting the required data through designing and distributing a questionnaire For a sample of tax officers in the Egyptian tax authority and tax experts from different public accounting firms in addition the research uses the quantitative approach in analyzing the collected data through applying SPSS software.
The results of this study indicates that the agreement of all macro and micro uses of value added tax and the disagreement of macro and micro limitations of vat, so most of people saw that the benefits of value added tax in Egypt that vat is proportional tax and increases the level of export, minimizes tax evasion, improve the level of society fairness and stable source of government revenue in macro levelPresented To: DR: Tarek el-shazl
Construction Project Management
No full textThe construction of 4 residential buildings within Sama El-Qahera located in Qattemya and set on 4000 m, Architects have designed these residential buildings along the theme of the all modern and attractive way. The commercial area contains big mall shopping center designed according to international standards All local and international merchandise is readily available in addition to varied entertainment facilities, making shopping a true joy The commercial areas include districts situated within zones near residential areas to provide inhabitants with their day-to-day needsDr. Ibrahim El Mahd
Design and Implementation of a Correcting and Assessing Exams Intelligent System
No full textThe proposed project investigate an automatic assessment method for correcting and scoring student's answers including the essay answers. The correction process deals with the answer syntactically and semantically. The semantic correction is based on Supervised Machine Learning approach. While the syntax correction is based on two similarity algorithms. The first is the Cosine Similarity, and the second is the Levenshtein Similarity The proposed project's purpose is to provide a self-contained educational platform for students to practice on. Rather than only providing an auto-correction service for questions, it does also provide a variety of services that serve the same goal, in the form of a mobile app for the students for the sake of portability and easiness. A Website is also presented for the Teachers as platform for managing and controlling the learning and practicing process.Supervised by Prof. dr. Osama Fathi , TA. Amr Mansou
Honor thesis (REM 401-A-PAD)
No full textThis topic was chosen as Egypt according to researches occupies the 3rd place in trading in human organs/lives. Human trafficking is an unethical action according to religion and law, and if anyone commit such a crime they will be punished by both. according the Egyptian human trafficking law number 64 year 2010 to curb human trafficking, the sanctions for trading in humans in any mean is either to be locked away and a fine not less than 50,000 and not more than 200,000 or to be locked away forever and a fine not less than 100,000 and not more than 500,000, this law actually contains 30 articles concerning the sanctions and different cases of committing such a crime. According to the Egyptian constitution 2014 article 60 and 61 it is forbidden to transfer any organ from a living human unless if it was a donation case for a relative in need and for non-relative it is only possible if it is an emergency or a critical case, but under one condition which is the agreement of the ministry of health on such operations. the Egyptian Child Act No. 12 of 1996 and amended by Law 126 of 2008 guaranties and gives protection for the children as the provisions of this law include the protection of the child from the risk and the commission of acts that would endanger the child or put him in a situation that threatens the environment that is necessary for him in the circumstances provided for in article 96 of the law, including endangering the child's security, morals, health or life. Also in the constitution article 89 forbid all types of slavery, trading in people, commercial sex acts and all the types of human trafficking. The former first lady of Egypt Mrs. Suzanne Mubarak had joined hands with the UNODC “United Nations Office on Drugs and Crime”, and other prominent figures of the International Community in addition to a congregation of experts and activists participating in a plenary session of the Vienna Forum to fight human trafficking, which took place in February 2008. Even after all this laws people are still heartless all they see is money and self-interests, our nation has drawn out of every good thing and occupied top ranks in everything that’s bad and self-destructive for sake of money
The impact of poverty on unemployment rate in Nigeria
No full textDespite Nigeria’s rich donation with natural resources, people who live in this country are deadly poor. It presented from the highest country in unemployment rate (inform of youth) & poverty. Many scholars & evidences saw that there is a correlation between the high level of unemployment rate & poverty in Nigeria. Thus, the statistical evidence shows that unemployment rate in 2015 was 6.4% and in 2017 18.8%, there is a huge rapid increasing in this percent within only two years, which is a fatal problem that must be looking for. On the other hand, they have low standard of education by making the youth become job Seekers instead of self-reliance without skills development or training. The government also play vital role in that unemployment rate and poverty rate. The International Labor Organization (ILO) defines the unemployed as numbers of the economically active population who are without work but available for and seeking work & people who have lost their jobs, but in reality people in Nigeria are able to work but they can’t find the type of work that they are trained to do and their area of expertise, so the result is young people may be forced to engage in casual work and other unconventional livelihood sources, this lead to increase unemployment rate. Moreover, they have a lack of infrastructure facilities which make them converted to another area or increase the rate of crimes such as armed-robbery, hired assassinations, prostitution, communal crisis, drug-addiction, religious crisis like the recent boko- haram . Specifically in rural areas indicates that most of youth unemployment are commonly concentrated in rural areas which increased from 54.50% in 2010 to 61.6% in 2017. This country is rich as I mentioned above with their natural resources but the government didn’t manage these resources in the right way. Furthermore, the inequality they concentrated the wealth of the country with only the elites (upper class) of the state without taking any considerations the lower class (poor), even the middle class didn’t face that much of unemployment rate. The main contribution here is rural urban migration. Thus, migration happened due to an influence system which does not significantly contribute to the rate of unemployment in Nigeria