Future Repository
Not a member yet
2157 research outputs found
Sort by
Efficiency of systemic versus intralesional bone marrow- derived stem cells in regeneration of oral mucosa after induction of formocresol induced ulcers in dogs
No full textBackground:
Bone marrow mesenchymal stem cells (BMSCs) are the key to regenerative wound healing. MSCs have spatial memory and respond to local environment. The goal of this study was to evaluate the use of systemic and intralesional transplantation of BMSCs for regeneration of oral mucosa in an in vivo dog model.
Materials and Methods:
Transplantation of undifferentiated green fluorescent protein (GFP)-labeled autologous BMSCs systemically, submucosally or vehicle (saline) was injected around the chemically induced oral ulcer in each group of 18 adult dogs. The healing process of the ulcer was monitored clinically and histopathologically. Gene expression of vascular endothelial growth factor (VEGF) and collagen genes was detected in biopsies from all ulcers. One way ANOVA was used to compare between means of the three groups. Results were considered significant at P < 0.05.
Results:
Flow cytometric analysis of the MSCs at the passage 3 showed that these cells were negative for CD45 (2.39%). They expressed high levels of CD29 (98.34%). Frozen fluorescence microscopy of sections of the cell-treated oral tissue of all groups indicated that the GFP-transduced implanted cells were integrated within the transplanted tissues. The treatment resulted in dramatic wound edge activation and resurfacing of oral mucosa wound.
Conclusion:
Our results revealed that BMSCs may be labeled with (GFP), in order to know the distribution of these cells after administration, and suggest that intralesional administration is an appropriate procedure to achieve acceptable regeneration of the previously injured oral mucosa more than systemic route
Medical problems in dentistry.
No full textRev. ed. of Medical problems in dentistry / Crispian Scully. 6th ed. 2010.Includes bibliographical references and index.viii, 823 p. :Suitable for students learning for the first time or practitioners needing to keep up-to-date with their knowledge, this title offers an account of general medical and surgical conditions as they apply to the practice of dentistry and oral healthcar
Textbook of dental anatomy, physiology & occlusion
No full textIncludes bibliographical references and index.System requirements for accompanying DVD-ROMs : Windows XP or above; web browser; Java & Flash player.xviii, 369 pages :• This textbook is a comprehensive guide to dental anatomy, physiology and occlusion (alignment), for postgraduate dental students. Beginning with an introduction to anatomy and tooth development, the following chapters provide in depth discussion on deciduous and permanent dentition, morphology of teeth, and occlusion. The final section is dedicated to tooth carving, providing step by step methodology. Each chapter includes multiple choice questions and answers to help students prepare for exams, and features numerous high quality photographs and diagrams with descriptions. Two interactive DVDs are included, demonstrating tooth carving procedures for different teeth, and providing more multiple choice questions for self assessment. Key points Comprehensive guide to dental anatomy, physiology and occlusion for postgraduate students Complete section dedicated to tooth carving Multiple choice questions in each chapter Includes DVDs demonstrating tooth carving procedure
Technical, Economical, and Environmental Evaluation for Sizing and Siting of Distributed Generation in Electric Power Networks
No full textThe implementation of Distributed Generation (DG) in distribution networks has spread all over the world at the present time. The proper DG sizing and siting is essential for various technical, economical, and environmental aspects. Each one of these three aspects can be considered as an objective for optimizing the DG sizing and siting problem. This thesis proposes an optimal solution for DG sizing and siting for distribution system expansion planning; taking into consideration the above mentioned aspects. A literature review for the work done on DG sizing and siting in distribution networks is presented. A mathematical model is formulated to optimize DG unit ratings and locations. The cost function optimizes the cost of DG, substation expansion, or both. It also includes requirements of environmental demands expressed in economic terms. Particle Swarm Optimization (PSO) technique has been applied to solve the above mentioned distribution expansion planning problem. The proposed model and PSO are evaluated using three case studies. The first case study has been taken from one of the main references and the obtained results are compared to the previous results to verify the proposed method. The second case study is a practical system from the National Egyptian Power Network. Finally the third case study is the standard IEEE 30 bus system (distribution voltage level). All three case studies have shown favorable results. Simulation results for the small distribution systems with limited number of bus-bars indicate that both addition of substation transformers and localized DG units are required. However, in large distribution systems with large number of bus-bars, different solutions including many DG units, connected to different bus-bars can be obtained. Finally, it has to be mentioned that taking the environmental aspects into consideration adds to the favor of implementing more DGs rather than expanding the existing substations.Supervised By Dr. Mohammad Abdel Latif Badr ; Dr. Mahmoud Abdel Hameed Mostafa ; Dr. Walid El-Khatta
Computer-aided diagnosis of human brain tumor through MRI: A survey and a new algorithm
No full textComputer-aided detection/diagnosis (CAD) systems can enhance the diagnostic capabilities of physicians and reduce the time required for accurate diagnosis. The objective of this paper is to review the recent published segmentation and classification techniques and their state-of-the-art for the human brain magnetic resonance images (MRI). The review reveals the CAD systems of human brain MRI images are still an open problem. In the light of this review we proposed a hybrid intelligent machine learning technique for computer-aided detection system for automatic detection of brain tumor through magnetic resonance images. The proposed technique is based on the following computational methods; the feedback pulse-coupled neural network for image segmentation, the discrete wavelet transform for features extraction, the principal component analysis for reducing the dimensionality of the wavelet coefficients, and the feed forward back-propagation neural network to classify inputs into normal or abnormal. The experiments were carried out on 101 images consisting of 14 normal and 87 abnormal (malignant and benign tumors) from a real human brain MRI dataset. The classification accuracy on both training and test images is 99% which was significantly good. Moreover, the proposed technique demon- strates its effectiveness compared with the other machine learning recently published techniques. The results revealed that the proposed hybrid approach is accurate and fast and robust. Finally, possible future directions are suggested
High acid crudes / James G. Speight.
No full textIncludes bibliographical references.1 v. :High Acid Crudes quickly gets the refinery manager and all other relative personnel up to date on this particular type of feedstock by providing an overview and relevant details of the identification of high acid crudes and their influence on the refinery's process units, especially regarding corrosion potential. Covering the types, effects on the various refining units, and proper acid stripping techniques, High Acid Crudes effectively trains refinery personnel with a quick reference guide for day-to-day use in today's refineries. Due to their discounted value but potential for higher production rates, refineries are accepting more of high acidic crude feedstocks, otherwise referred to as "opportunity" or "challenging" crude oils. Refining of these resources is still increasing due to high oil prices, with China dominating this market and doubling their production of high acid crudes by 2015. Processing these resources can significantly increase any refinery's productivity, but knowledge and proper training for the refinery manager and crude supplier is key to reducing the risk that is commonly associated with high acid feedstocks, while still maintaining clean production standards
Animal biotechnology : models in discovery and translation / edited by Ashish S. Verma, Amity Institute of Biotechnology, Amity University Uttar Pradesh, NOIDA (UP), India, Anchal Singh, Amity Institute of Biotechnology, Amity University Uttar Pradesh, NOIDA (UP), India.
No full textpharmacy bookfair2016Includes bibliographical references and index.xxix, 620 pages :Animal Biotechnology introduces applications of animal biotechnology and implications for human health and welfare. It begins with an introduction to animal cell cultures and genome sequencing analysis and provides readers with a review of available cell and molecular tools. Topics here include the use of transgenic animal models, tissue engineering, nanobiotechnology, and proteomics. The book then delivers in-depth examples of applications in human health and prospects for the future, including cytogenetics and molecular genetics, xenografts, and treatment of HIV and cancers. All this is complemented by a discussion of the ethical and safety considerations in the field. Animal biotechnology is a broad field encompassing the polarities of fundamental and applied research, including molecular modeling, gene manipulation, development of diagnostics and vaccines, and manipulation of tissue. Given the tools that are currently available and the translational potential for these studies, animal biotechnology has become one of the most essential subjects for those studying life sciences. Highlights the latest biomedical applications of genetically modified and cloned animals with a focus on cancer and infectious diseasesProvides firsthand accounts of the use of biotechnology tools, including molecular markers, stem cells, and tissue engineering
Introduction to Data Mining / Pang-Ning Tan, Michael Steinbach, Vipin Kumar.
No full textIncludes bibliographical references and indexes.732 pages
Forensic chemistry / Suzanne Bell.
No full textpharmacy bookfair2016Includes bibliographical references and index.xi, 632 p., [2] p. of plates :The first text to specifically address this growing field, Forensic Chemistry introduces the principal areas of study from the perspective of analytical chemistry--addressing the legal context in which forensic chemistry is conducted, types of samples and matrices, variety of sample types encountered, and extensive use of instrumentation. It provides a solid foundation for basic chemistry, introducing chemical concepts and practices from a forensic perspective (including multivariate statistics, quality assurance/quality control, and protocols used in working forensic laboratories). The Second Edition has been reorganized significantly, and updated to reflect new developments in the course
Elements of quantity surveying
No full textBased on an original work: Elements of quantity surveying / Arthur James Willis. 1935.Includes index.ix, 331 pages :The measurement of building elements is a core subject forquantity surveying students. Responding to the recently publishedsecond volume of the New Rules of Measurement (NRM2) by the RoyalInstitution of Chartered Surveyors, the 12th edition of Willis'sElements of Quantity Surveying explains, from first principles andto NRM2 standards, the measurement process for all the key buildingelements.
This edition begins with an overview of the need for measurementand the differing rules governing measurement at different stagesof the design or project cycle. As in previous editions the focusremains the detailed measurement of building elements, but the texthas been fully revised in line with the NRM2 rules. A range of newand revised examples illustrating the use of NRM2 rules are a keyfeature of the book, which concludes with guidance on how to usethe data collected during the measurement process to create thetender documents.
In the 12th edition the hallmarks of previous editions –clarity and practicality – have been maintained whileensuring the book is fully up to date, providing the student ofquantity surveying with a first class introduction to themeasurement of building elements