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Sample records for dentistry 3rd ed

  1. Mechanical engineers' handbook, energy and power. 3rd ed.

    SciTech Connect

    Myer Kutz

    2005-12-15

    In addition to chapters on thermophysical properties of fluids, fundamentals of fluid mechanics, thermodynamics, heat transfer, combustion, and furnaces, Book 4 of the Handbook features coverage of both conventional (gaseous and liquid fuels, coal, and nuclear) and alternative (solar, geothermal, and fuel cells) energy sources, plus chapters on power machinery, refrigeration and cryogenics, environmental issues, and thermal systems optimization. Much of the material in this book is new or extensively revised, including coverage of such topics as: Heat pipes; Wind turbines; Fuel cells; Thermal systems optimization; Combustion; Fans, blowers, compressors, and pumps; Indoor environmental control; and Fluid power. Chapters of particular interest are: Combustion by Eric Eddings; Furnaces by Carroll Cone; Gaseous fuels by Richard J. Reed; Coals, lignite, peat by James Keppeler; and Air pollution-control technologies by C.A. Miller.

  2. Coal mine ground control. 3rd ed.

    SciTech Connect

    Peng, S.S.

    2008-09-15

    The third edition not only completely revises and updates the original subject areas, but also is broadened to include a number of new topics such as high horizontal stresses, computer modeling, and highwall stability. The subject areas covered in this book define the current field of coal mine ground control, except for the recently emerging topic of mine seals and some conventional subjects such as coal/rock cutting and impoundment dams. It contains 1,134 references from all published sources, and archived since 1876.

  3. Basic imaging in congenital heart disease. 3rd Ed

    SciTech Connect

    Swischuk, L.E.; Sapire, D.W.

    1986-01-01

    The book retains its previous format with chapters on embryology, plain film interpretation, classification of pulmonary vascular patterns, cardiac malpositions and vascular anomalies, and illustrative cases. The book is organized with an abundance of illustrative figures, diagrams, and image reproductions. These include plain chest radiographs, angiograms, echocardiograms, and MR images. The authors present the pathophysiology and imaging of congenital heart lesions.

  4. The radiology of joint disease. 3rd Ed

    SciTech Connect

    Forrester, D.M.; Brown, J.C.

    1987-01-01

    The book is a systematic radiographic approach to the arthritides. Part one deals with hand abnormalities ''to facilitate the teaching of basic principles and to dramatize the differences between radiographic features of various arthritides,'' as stated in the forward of the first edition. Part two, ''Arthritis from Head to Foot,'' illustrates the same diseases as they affect other joints. The ABCs (alignment, bone mineralization, cartilage space, soft tissue) approach is followed throughout the book. For example, reflex sympathetic dystrophy syndrome is dealt with in six different locations, and metatarsal stress fractures are mentioned in a chapter on erosions in rheumatoid arthritis.

  5. More States Retaining 3rd Graders

    ERIC Educational Resources Information Center

    Robelen, Erik W.

    2012-01-01

    As increasing numbers of states move to end social promotion of 3rd graders, some are also including interventions to help students learn to read. Oklahoma is one of several states that recently adopted new reading policies that--with limited exceptions--call for 3rd graders to be held back if they flunk a state standardized test. Supporters say

  6. Cosmetic Dentistry

    MedlinePlus

    If you have stained, broken or uneven teeth, cosmetic dentistry can help. Cosmetic dentistry is different from orthodontic treatment, which can straighten your teeth with braces or other devices. Cosmetic dental ...

  7. BACODINE/3rd Interplanetary Network burst localization

    SciTech Connect

    Hurley, K.; Barthelmy, S.; Butterworth, P.; Cline, T.; Sommer, M.; Boer, M.; Niel, M.; Kouveliotou, C.; Fishman, G.; Meegan, C.

    1996-08-01

    Even with only two widely separated spacecraft (Ulysses and GRO), 3rd Interplanetary Network (IPN) localizations can reduce the areas of BATSE error circles by two orders of magnitude. Therefore it is useful to disseminate them as quickly as possible following BATSE bursts. We have implemented a system which transmits the light curves of BACODINE/BATSE bursts directly by e-mail to UC Berkeley immediately after detection. An automatic e-mail parser at Berkeley watches for these notices, determines the Ulysses crossing time window, and initiates a search for the burst data on the JPL computer as they are received. In ideal cases, it is possible to retrieve the Ulysses data within a few hours of a burst, generate an annulus of arrival directions, and e-mail it out to the astronomical community by local nightfall. Human operators remain in this loop, but we are developing a fully automated routine which should remove them, at least for intense events, and reduce turn-around times to an absolute minimum. We explain the current operations, the data types used, and the speed/accuracy tradeoffs.

  8. Aviation dentistry.

    PubMed

    Lakshmi; Sakthi, D Sri

    2014-03-01

    With the rapid expansion of the airline industry in all sectors, dentists should pay special attention to crews and frequent flyers, due to change of pressure in-flight, that cause different types of oro-facial pain. Aviation dentistry deals with evaluation, principles of prevention, treatment of diseases, disorders or conditions which are related to oral cavity and maxillofacial area or adjacent and associated structures and their impact on people who travel or on aircrew members and flight restrictions. Dentists should prevent the creation of in-flight hazards when they treat aircrew members and frequent flyers. PMID:24783162

  9. Aviation Dentistry

    PubMed Central

    Lakshmi; Sakthi, D Sri

    2014-01-01

    With the rapid expansion of the airline industry in all sectors, dentists should pay special attention to crews and frequent flyers, due to change of pressure in-flight, that cause different types of oro-facial pain. Aviation dentistry deals with evaluation, principles of prevention, treatment of diseases, disorders or conditions which are related to oral cavity and maxillofacial area or adjacent and associated structures and their impact on people who travel or on aircrew members and flight restrictions. Dentists should prevent the creation of in-flight hazards when they treat aircrew members and frequent flyers. PMID:24783162

  10. PREFACE: 3rd International Congress on Mechanical Metrology (CIMMEC2014)

    NASA Astrophysics Data System (ADS)

    2015-10-01

    From October 14th to 16th 2014, The Brazilian National Institute of Metrology, Quality, and Technology (Inmetro) and the Brazilian Society of Metrology (SBM) organized the 3rd International Congress on Mechanical Metrology (3rd CIMMEC). The 3rd CIMMEC was held in the city of Gramado, Rio Grande do Sul, Brazil. Anticipating the interest and enthusiasm of the technical-scientific community, the Organizing Institutions invite people and organizations to participate in this important congress, reiterating the commitment to organize an event according to highest international standards. This event has been conceived to integrate people and organizations from Brazil and abroad in the discussion of advanced themes in metrology. Manufacturers and dealers of measuring equipment and standards, as well as of auxiliary accessories and bibliographic material, had the chance to promote their products and services in stands at the Fair, which has taken place alongside the Congress. The 3rd CIMMEC consisted of five Keynote Speeches and 116 regular papers. Among the regular papers, the 25 most outstanding ones, comprising a high quality content on Mechanical Metrology, were selected to be published in this issue of Journal of Physics: Conference Series. It is our great pleasure to present this volume of Journal of Physics: Conference Series to the scientific community to promote further research in Mechanical Metrology and related areas. We believe that this volume will be both an excellent source of scientific material in the fast evolving fields that were covered by CIMMEC 2014.

  11. PreK-3rd: How Superintendents Lead Change. PreK-3rd Policy Action Brief. No. Five

    ERIC Educational Resources Information Center

    Marietta, Geoff

    2010-01-01

    Leading change to create an integrated PreK-3rd education and connect early learning programs with the K-12 system is not easy. Superintendents require courage to take the first step, persistence and political skills to encourage organizational and community engagement, and a relentless focus on results to measure progress and build momentum. As a…

  12. Bibliography of Military History. A Selected and Annotated History of Reference Sources, 3rd ed.

    ERIC Educational Resources Information Center

    Aimone, Alan C., Comp.

    This revision of the 1975 publication of the same name has increased the scope of sources to include non-print materials, and has added several new categories: Order of Battles, Abstracts, Lineages, Statistics, and Guidebooks. The previous topic headings are grouped by document type or, in some cases, by subject, such as Customs, Decorations,…

  13. The 3rd Annual Controlled Structures Technology Symposium

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Viewgraphs of presentations at the Controlled Structures Technology (CST) MIT Space Engineering Research Center 3rd Annual Symposium are included. Topics covered include optical interferometer testbed; active impedence matching of complex structural systems; application of CST to adaptive optics; middeck 0-G dynamics Experiment (MODE); inhibiting multiple mode vibration in controlled flexible systems; the middeck active control experiment (MACE); robust control for uncertain structures; cost averaging techniques for robust structural control; and intelligent structures technology.

  14. Precipitation Model Validation in 3rd Generation Aeroturbine Disc Alloys

    NASA Technical Reports Server (NTRS)

    Olson, G. B.; Jou, H.-J.; Jung, J.; Sebastian, J. T.; Misra, A.; Locci, I.; Hull, D.

    2008-01-01

    In support of application of the DARPA-AIM methodology to the accelerated hybrid thermal process optimization of 3rd generation aeroturbine disc alloys with quantified uncertainty, equilibrium and diffusion couple experiments have identified available fundamental thermodynamic and mobility databases of sufficient accuracy. Using coherent interfacial energies quantified by Single-Sensor DTA nucleation undercooling measurements, PrecipiCalc(TM) simulations of nonisothermal precipitation in both supersolvus and subsolvus treated samples show good agreement with measured gamma particle sizes and compositions. Observed longterm isothermal coarsening behavior defines requirements for further refinement of elastic misfit energy and treatment of the parallel evolution of incoherent precipitation at grain boundaries.

  15. 3rd latin american and Caribbean congress on health economics.

    PubMed

    Pérez Izquierdo, Victoria; Alvarez Muñiz, Manuel

    2009-02-01

    The 3rd Latin American and Caribbean Congress on Health Economics took place at Havana Convention Center from 28th to 31st October 2008. The conference was an excellent opportunity for the exchange of personal encounters regarding health economics and its related disciplines from the perspectives of research, teaching and management. Specialists from mostly Latin American countries attended the event. High-ranking specialists from other countries highlighted the importance and popularity of the conference. A total of 313 delegates from 23 countries were present at the congress, 160 of whom were Cuban. PMID:19371176

  16. Microstructure Modeling of 3rd Generation Disk Alloys

    NASA Technical Reports Server (NTRS)

    Jou, Herng-Jeng

    2010-01-01

    The objective of this program is to model, validate, and predict the precipitation microstructure evolution, using PrecipiCalc (QuesTek Innovations LLC) software, for 3rd generation Ni-based gas turbine disc superalloys during processing and service, with a set of logical and consistent experiments and characterizations. Furthermore, within this program, the originally research-oriented microstructure simulation tool will be further improved and implemented to be a useful and user-friendly engineering tool. In this report, the key accomplishment achieved during the second year (2008) of the program is summarized. The activities of this year include final selection of multicomponent thermodynamics and mobility databases, precipitate surface energy determination from nucleation experiment, multiscale comparison of predicted versus measured intragrain precipitation microstructure in quench samples showing good agreement, isothermal coarsening experiment and interaction of grain boundary and intergrain precipitates, primary microstructure of subsolvus treatment, and finally the software implementation plan for the third year of the project. In the following year, the calibrated models and simulation tools will be validated against an independently developed experimental data set, with actual disc heat treatment process conditions. Furthermore, software integration and implementation will be developed to provide material engineers valuable information in order to optimize the processing of the 3rd generation gas turbine disc alloys.

  17. Designing a 3rd generation, authenticatable attribute measurement system

    SciTech Connect

    Thron, Jonathan; Karpius, Peter; Santi, Peter; Smith, Morag; Vo, Duc; Williams, Richard

    2009-01-01

    Attribute measurement systems (AMS) are designed to measure potentially sensitive items containing Special Nuclear Materials to determine if the items possess attributes which fall within an agreed-upon range. Such systems could be used in a treaty to inspect and verify the identity of items in storage without revealing any sensitive information associated with the item. An AMS needs to satisfy two constraints: the host party needs to be sure that none of their sensitive information is released, while the inspecting party wants to have confidence that the limited amount of information they see accurately reflects the properties of the item being measured. The former involves 'certifying' the system and the latter 'authenticating' it. Previous work into designing and building AMS systems have focused more on the questions of certifiability than on the questions of authentication - although a few approaches have been investigated. The next step is to build a 3rd generation AMS which (1) makes the appropriate measurements, (2) can be certified, and (3) can be authenticated (the three generations). This paper will discuss the ideas, options, and process of producing a design for a 3rd generation AMS.

  18. 3rd grade English language learners making sense of sound

    NASA Astrophysics Data System (ADS)

    Suarez, Enrique; Otero, Valerie

    2013-01-01

    Despite the extensive body of research that supports scientific inquiry and argumentation as cornerstones of physics learning, these strategies continue to be virtually absent in most classrooms, especially those that involve students who are learning English as a second language. This study presents results from an investigation of 3rd grade students' discourse about how length and tension affect the sound produced by a string. These students came from a variety of language backgrounds, and all were learning English as a second language. Our results demonstrate varying levels, and uses, of experiential, imaginative, and mechanistic reasoning strategies. Using specific examples from students' discourse, we will demonstrate some of the productive aspects of working within multiple language frameworks for making sense of physics. Conjectures will be made about how to utilize physics as a context for English Language Learners to further conceptual understanding, while developing their competence in the English language.

  19. Results from the UK 3rd generation programme: Albion

    NASA Astrophysics Data System (ADS)

    McEwen, R. K.; Axcell, C.; Knowles, P.; Hoade, K. P.; Wilson, M.; Dennis, P. N. J.; Backhouse, P.; Gordon, N. T.

    2008-10-01

    Following the development of 1st Generation systems in the 1970s, thermal imaging has been in service with the UK armed forces for over 25 years and has proven itself to be a battle winning technology. More recently the wider accessibility to similar technologies within opposing forces has reduced the military advantage provided by these 1st Generation systems and a clear requirement has been identified by the UK MOD for thermal imaging sensors providing increased detection, recognition and identification (DRI) ranges together with a simplified logistical deployment burden and reduced through-life costs. In late 2005, the UK MOD initiated a programme known as "Albion" to develop high performance 3rd Generation single waveband infrared detectors to meet this requirement. At the same time, under a separate programme supporting higher risk technology, a dual waveband infrared detector was also developed. The development phase of the Albion programme has now been completed and prototype detectors are now available and have been integrated into demonstration thermal imaging cameras. The Albion programme has now progressed into the second phase, incorporating both single and dual waveband devices, focussing on low rate initial production (LRIP) and qualification of the devices for military applications. All of the detectors have been fabricated using cadmium mercury telluride material (CMT), grown by metal organic vapour phase epitaxy (MOVPE) on low cost, gallium arsenide (GaAs) substrates and bump bonded to the silicon read out circuit (ROIC). This paper discusses the design features of the 3rd Generation detectors developed in the UK together with the results obtained from the prototype devices both in the laboratory and when integrated into field deployable thermal imaging cameras.

  20. Beyond 3rd generation MCT: SXGA QWIP (Invited Paper)

    NASA Astrophysics Data System (ADS)

    Crawford, Stewart; Skivington, Tracey; Craig, Robert; Haining, Andrew; Costard, Eric; Belhaire, Eric; Bois, Philippe

    2005-05-01

    Successful past experience of implementing long wave MCT 1st and 2nd Generation thermal imagers has demonstrated to THALES Optronics that MCT presents difficult challenges when correcting non-uniformity errors caused by rapidly changing detector element gain and offset drifts. These problems become even more demanding when the move is made from long linear arrays to focal plane arrays due to the significantly larger number of detector elements. Relaxation of these demands would make a significant impact on the price/performance trade which inevitably occurs in a camera development. In recognition of the need to offer UK MOD best value, THALES Optronics has initiated a programme to achieve a SXGA resolution camera and is working with UK MOD, over a two year period, to investigate whether an alternative technology can maintain the high resolution required whilst achieving a downward step change in price. The selected technology is 3rd Generation Gallium Arsenide long wave Quantum Well Infra-red Photodiode (QWIP) chosen because initial indications are that drift rates are orders of magnitude slower than MCT. The programme involves studies to determine effects of defect clusters, bimodalism, non-uniformity correction levels and higher than normal operating temperatures on achieving acceptable performance, including logistics, in user scenarios whilst maximising detector yield. Development of demonstrator IR camera hardware (technology readiness level 6/7) based on a THALES Research & Technology QWIP array is also part of the programme.

  1. Color: Implications in dentistry

    PubMed Central

    Sikri, Vimal K

    2010-01-01

    The success of restorative dentistry is determined on the basis of functional and esthetic results. To achieve esthetics, four basic determinants are required in sequence; viz., position, contour, texture and color. The knowledge of the concept of color is essential for achieving good esthetics. This review compiles the various aspects of color, its measurements and shade matching in dentistry. PMID:21217954

  2. PREFACE: 3rd International Conference on Hadron Physics (TROIA'11)

    NASA Astrophysics Data System (ADS)

    Erkol, Güray; Küçükarslan, Ayşe; Özpineci, Altuğ

    2012-03-01

    The 3rd International Conference on Hadron Physics, TROIA'11 was held at Canakkale, Turkey on 22-25 August 2011. Ozyegin University, Middle East Technical University, Canakkale Onsekiz Mart University and HadronPhysics2 Consortium sponsored the conference. Its aim was to bring together the experts and young scientists working on experimental and theoretical hadron physics. About 60 participants from 12 countries attended the conference. The topics covered included: Chiral Perturbation Theory QCD Sum Rules Effective Field Theory Exotic Hadrons Hadron Properties from Lattice QCD Experimental Results and Future Perspectives Hadronic Distribution Amplitudes The conference presentations were organized such that the morning sessions contained invited talks and the afternoon sessions were devoted to contributed talks and poster presentations. The speakers of the invited talks were: D Melikhov, M Nielsen, M Oka, E Oset, S Scherer, T T Takahashi and R Wanke. The conference venue was a resort hotel near Canakkale. As a social program, a guided full-day excursion to the excavation site of the ancient town of Troia and Assos was organized. We believe that this conference provided a medium for young scientists and experts in the field to effectively communicate and share ideas. We would like to express our sincere thanks to all participants for their contributions and stimulating discussions. We are also grateful to the Scientific Secretary, Kadir Utku Can, and all other members of the Organizing Committee for their patience and efforts. 13 February 2012 The Editors Güray Erkol Ayşe Küçükarslan Altuğ Özpineci Conference photograph

  3. PREFACE: 3rd International Meeting on Silicene (IMS-3)

    NASA Astrophysics Data System (ADS)

    Kara, Abdelkader; Enriquez, Hanna; Lemaire, Jean Louis; Oughaddou, Hamid

    2014-03-01

    Silicene, the new supernova material Silicon is formed in a large amount during supernova nucleo-synthesis and it is the 8th most common chemical element in the universe. Today modern electronics make large use of bulk silicon, which has consequently an extremely large impact on the world industry and economy. The need for more powerful, faster and less energy-consuming integrated circuits requires in the future the use of nanotechnologies. The ultimate step concerning silicon is silicene (the 2D silicon-based analogue of graphene). This material is of paramount importance as it requires the use of the same technologies and production lines as silicon. Even if theoreticians had predicted its possible existence, it is only in 2010 that a team of pioneers from CINAM-France, ISMO-France and UCF-USA has presented for the first time the experimental evidence of the formation of silicene. Since then research is exploding (like a supernova!) both on the experimental and theoretical sides, with the main aim of replacing bulk silicon with this potentially revolutionary material. However, before any possible industrial use, it has first to be prepared or synthesized in various stripe and sheet shapes on insulating surfaces on which its physical and chemical properties have to be analyzed in detail. A second step is its chemical functionalization through various dopants to achieve different tasks, expected or not yet imagined. Chemists and physicists, experimentalists and theoreticians are involved in this thrilling work. A wide array of techniques, from the subtle chemistry reaction networks, to all those of experimental surface science (from synchrotron radiation to scanning tunneling microscopy) as well as those of theoretical chemistry (from {\\it ab initio} to density functional theory calculations) are involved. Big progress has been made since 2010 and the success of this third International Meeting on Silicene (IMS-3) is demonstrated by the present proceedings. Historical summary Every two years, the STARM (science, technologie avanc\\'ee et recherche pour la Mediterran\\'ee, http://www.starm.emcmre.org/) society is organizing an international conference entitled Euro-Mediterranean Conference on Materials and Renewable Energies (EMCMRE, http://www.emcmre.org/) in countries across the Mediterranean Sea. It is in this framework that an international meeting dedicated to silicene is organized simultaneously since 2010: 1st International Meeting of Silicene (IMS-1), Safi, Morocco, 2010 2nd International Meeting of Silicene (IMS-2), Marrakech, Morocco, 2011 3rd International Meeting of Silicene (IMS-3), Istres-Marseille, France, 2013 Conference pictures are available in the PDF

  4. PREFACE: 3rd International Symposium ''Optics and its Applications''

    NASA Astrophysics Data System (ADS)

    Calvo, M. L.; Dolganova, I. N.; Gevorgyan, N.; Guzman, A.; Papoyan, A.; Sarkisyan, H.; Yurchenko, S.

    2016-01-01

    The SPIE.FOCUS Armenia: 3rd International Symposium ''Optics and its Applications'' (OPTICS-2015) http://rau.am/optics2015/ was held in Yerevan, Armenia, in the period October 1 - 5, 2015. The symposium was organized by the International Society for Optics and Photonics (SPIE), the Armenian SPIE student chapter with collaboration of the Armenian TC of ICO, the Russian-Armenian University (RAU), the Institute for Physical Research of National Academy of Sciences of Armenia (IPR of NAS), the Greek-Armenian industrial company LT-PYRKAL, and the Yerevan State University (YSU). The Symposium was co-organized by the SPIE & OSA student chapters of BMSTU, the Armenian OSA student chapter, and the SPIE student chapters of Lund University and Wroclaw University of Technology. The symposium OPTICS-2015 was dedicated to the International Year of Light and Light-Based Technologies. OPTICS-2015 was devoted to modern topics and optical technologies such as: optical properties of nanostructures, silicon photonics, quantum optics, singular optics & its applications, laser spectroscopy, strong field optics, biomedical optics, nonlinear & ultrafast optics, photonics & fiber optics, and mathematical methods in optics. OPTICS-2015 was attended by 100 scientists and students representing 17 countries: Armenia, China, Czech Republic, France, Georgia, Germany, India, Iran, Italy, Latvia, Mexico, Poland, Russia, Saudi Arabia, Sweden, Ukraine, and USA. Such a broad international community confirmed the important mission of science to be a uniting force between different countries, religions, and nations. We hope that OPTICS-2015 inspired and motivated students and young scientists to work in optics and in science in general. The present volume of Journal of Physics: Conference Series includes proceedings of the symposium covering various aspects of modern problems in optics. We are grateful to all people who were involved in the organization process. We gratefully acknowledge support from SPIE under the Federation of Optics College and University Students (FOCUS) conference grant, as well as contributions from other organizations: the Abdus Salam International Center for Theoretical Physics (ICTP), the Optical Society (OSA), the Laboratory of Terahertz Technology of Bauman Moscow State Technical University (BMSTU), the RAU, the LT-Pyrkal, the King Abdullah University of Science and Technology (KAUST), IPR of NAS, and Ritea.

  5. Sports dentistry: A review

    PubMed Central

    Ramagoni, Naveen Kumar; Singamaneni, Vijaya Kumar; Rao, Saketh Rama; Karthikeyan, Jamini

    2014-01-01

    Dental trauma in sports is the major linking channel between sports and dentistry. Sports dentistry is the prevention of oral/facial athletic injuries and related oral diseases and manifestations. In children, sports activities were found to be responsible for 13% of overall oral trauma. It is emphasized that there is a great need for “Team Dentist” from high schools to professional teams. In this review, we discuss the relationship between sports and dentistry, and the importance of educating parents, teachers, and children in prevention of injuries related to the sports. PMID:25625070

  6. Digital DICOM in Dentistry

    PubMed Central

    Burgess, Jeff

    2015-01-01

    Similar to Medicine, digital communication, information processing, and x-ray imaging have changed the face of dentistry. The incorporation of digital systems into medical and dental practice has necessitated development of a standard that allows reliable transmission of information between the devices taking the images, devices storing the images, and devices displaying the images. This standard is termed as DICOM. The following article briefly reviews how DICOM came about, how dentistry is involved, the various elements that are part of the DICOM system, and how DICOM is currently used in dentistry. PMID:26464603

  7. 75 FR 55313 - Record of Decision (ROD) for Conversion of the 3rd Armored Cavalry Regiment (3rd ACR) to a...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-10

    ...The Department of the Army announces a ROD for conversion of the 3rd ACR to an SBCT at Fort Hood and discusses the environmental impacts of this decision. After conversion, the 3rd ACR will provide the Army with a force structure that has the flexibility to respond better to threats in an unpredictable global security environment. The Army's strategic estimate remains that its force......

  8. 80. GENERAL VIEW TO NORTH ON 3RD AVENUE EL AT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    80. GENERAL VIEW TO NORTH ON 3RD AVENUE EL AT GUN HILL STATION. 7TH AVENUE EL EXPRESS IS VISIBLE ABOVE THE 3RD AVENUE EL WHICH JOINED ONTO THE SAME STRUCTURE AT GUN HILL ROAD. NOTE: GUN HILL ROAD IS THE NORTH TERMINUS OF THE 3RD AVENUE ELEVATED. TRAINS DID NOT CARRY PASSENGERS BEYOND THIS POINT, ALTHOUGH THE 3RD AVENUE TRACK DID EXTEND FURTHER NORTH FOR SWITCHING PURPOSES AND INTO THE YARDS. - Interborough Rapid Transit Company, Third Avenue Elevated Line, Borough of the Bronx, New York County, NY

  9. PREFACE: 3rd International Congress on Ceramics (ICC3)

    NASA Astrophysics Data System (ADS)

    Niihara, Koichi; Ohji, Tatsuki; Sakka, Yoshio

    2011-10-01

    Early in 2005, the American Ceramic Society, the European Ceramic Society and the Ceramic Society of Japan announced a collaborative effort to provide leadership for the global ceramics community that would facilitate the use of ceramic and glass materials. That effort resulted in an agreement to organize a new biennial series of the International Congress on Ceramics, convened by the International Ceramic Federation (ICF). In order to share ideas and visions of the future for ceramic and glass materials, the 1st International Congress on Ceramics (ICC1) was held in Canada, 2006, under the organization of the American Ceramic Society, and the 2nd Congress (ICC2) was held in Italy, 2008, hosted by the European Ceramic Society. Organized by the Ceramic Society of Japan, the 3rd Congress (ICC3) was held in Osaka, Japan, 14-18 November 2010. Incorporating the 23rd Fall Meeting of the Ceramic Society of Japan and the 20th Iketani Conference, ICC3 was also co-organized by the Iketani Science and Technology Foundation, and was endorsed and supported by ICF, Asia-Oceania Ceramic Federation (AOCF) as well as many other organizations. Following the style of the previous two successful Congresses, the program was designed to advance ceramic and glass technologies to the next generation through discussion of the most recent advances and future perspectives, and to engage the worldwide ceramics community in a collective effort to expand the use of these materials in both conventional as well as new and exciting applications. ICC3 consisted of 22 voluntarily organized symposia in the most topical and essential themes of ceramic and glass materials, including Characterization, design and processing technologies Electro, magnetic and optical ceramics and devices Energy and environment related ceramics and systems Bio-ceramics and bio-technologies Ceramics for advanced industry and safety society Innovation in traditional ceramics It also contained the Plenary Session and the Special Symposium 'Emerging Technologies and Future Aspects for Ceramics', which discussed the issues and challenges of various ceramic technologies for sustainable development of tomorrow's human society. More than 1850 research papers including invited talks, oral presentations, and posters were presented from 56 countries (according to the Program), with nearly 2000 registered participants. This ICC3 proceedings contains papers that were submitted to ICC3 and approved for publication on line in IOP Conference Series: Materials Science and Engineering (MSE). The organization of ICC3 and the publication of this proceedings were made possible thanks to the tireless dedication of many people and the valuable support of numerous bodies. Special thanks should go to the financial supporters for their generous patronage. We also would like to express our sincere thanks to the symposia organizers, session chairs, presenters, exhibitors and congress attendees for their efforts and enthusiastic participation in this vibrant and cutting-edge congress. July 2011 Koichi Niihara, ICC3 President Tatsuki Ohji, ICC3 Secretariat Yoshio Sakka, ICC3 Secretariat The PDF file contains a complete list of sponsors, committee members, board members and symposia organizers.

  10. An Investigation of 3rd-Grade Taiwanese Students' Performance in Number Sense

    ERIC Educational Resources Information Center

    Yang, Der-Ching; Li, Mao-neng Fred

    2008-01-01

    The main purpose of this study was to investigate the number sense performance of 3rd-graders in Taiwan, and to diagnose areas of weakness or deficiency in number sense development. A total of 808 3rd-graders participated in this study. The results indicated that these students did not perform well on each of the five number sense components…

  11. Plasma in dentistry

    PubMed Central

    Cha, Seunghee; Park, Young-Seok

    2016-01-01

    This review describes the contemporary aspects of plasma application in dentistry. Previous studies on plasma applications were classified into two categories, surface treatment and direct applications, and were reviewed, respectively according to the approach. The current review discussed modification of dental implant surface, enhancing of adhesive qualities, enhancing of polymerization, surface coating and plasma cleaning under the topics of surface treatment. Microbicidal activities, decontamination, root canal disinfection and tooth bleaching were reviewed as direct applications with other miscellaneous ones. Non-thermal atmospheric pressure plasma was of particular focus since it is gaining considerable attention due to the possibility for its use in living tissues. Future perspectives have also been discussed briefly. Although it is still not popular among dentists, plasma has shown promises in several areas of dentistry and is now opening a new era of plasma dentistry. PMID:27030818

  12. Nanomaterials in preventive dentistry

    NASA Astrophysics Data System (ADS)

    Hannig, Matthias; Hannig, Christian

    2010-08-01

    The prevention of tooth decay and the treatment of lesions and cavities are ongoing challenges in dentistry. In recent years, biomimetic approaches have been used to develop nanomaterials for inclusion in a variety of oral health-care products. Examples include liquids and pastes that contain nano-apatites for biofilm management at the tooth surface, and products that contain nanomaterials for the remineralization of early submicrometre-sized enamel lesions. However, the treatment of larger visible cavities with nanomaterials is still at the research stage. Here, we review progress in the development of nanomaterials for different applications in preventive dentistry and research, including clinical trials.

  13. PreK-3rd: Next Steps for State Longitudinal Data Systems. PreK-3rd Policy Action Brief. No. Eight

    ERIC Educational Resources Information Center

    Hernandez, Donald J.

    2012-01-01

    The growing movement to strengthen PreK-3rd education as an essential foundation for student success, along with the rapid expansion in public funding for PreK, has created an urgent need to measure children's educational progress, in a continuous fashion, from the beginning of PreK through Grade Three. Currently, some state governments are…

  14. Deafness and dentistry.

    PubMed

    Holt, R D

    1993-08-21

    An article published last year in the British Medical Journal has illustrated that severe deafness does not preclude a career in medicine. My own experience and that of others prompts me to write that the same is true of dentistry. For patients who are deaf, dentists need to be aware of simple measures that may ease communication and avoid misunderstanding. PMID:8357674

  15. Calcium orthophosphates in dentistry.

    PubMed

    Dorozhkin, Sergey V

    2013-06-01

    Dental caries, also known as tooth decay or a cavity, remains a major public health problem in the most communities even though the prevalence of disease has decreased since the introduction of fluorides for dental care. Therefore, biomaterials to fill dental defects appear to be necessary to fulfill customers' needs regarding the properties and the processing of the products. Bioceramics and glass-ceramics are widely used for these purposes, as dental inlays, onlays, veneers, crowns or bridges. Calcium orthophosphates belong to bioceramics but they have some specific advantages over other types of bioceramics due to a chemical similarity to the inorganic part of both human and mammalian bones and teeth. Therefore, calcium orthophosphates (both alone and as components of various formulations) are used in dentistry as both dental fillers and implantable scaffolds. This review provides brief information on calcium orthophosphates and describes in details current state-of-the-art on their applications in dentistry and dentistry-related fields. Among the recognized dental specialties, calcium orthophosphates are most frequently used in periodontics; however, the majority of the publications on calcium orthophosphates in dentistry are devoted to unspecified "dental" fields. PMID:23468163

  16. Test Review: D. Wechsler "Wechsler Individual Achievement Test" (3rd ed.). San Antonio, Texas--Pearson, 2009

    ERIC Educational Resources Information Center

    Vaughan-Jensen, Jessica; Adame, Cindy; McLean, Lauren; Gamez, Brenda

    2011-01-01

    This article reviews "Wechsler Individual Achievement Test-Third Edition" (WIAT-III), which is designed to assess students' skills in listening, speaking, reading, writing, and mathematics. The test can identify an individual's strengths and weaknesses, assist professionals who are determining whether a student is eligible for special educational…

  17. Isolation by ion-exchange methods. In Sarker S.D. (ed) Natural Products Isolation, 3rd edition

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The primary goal of many natural products chemists is to extract, isolate, and characterize specific analytes from complex plant, animal, microbial, and food matrices. To achieve this goal, they rely considerably on highly sophisticated and highly hyphenated modern instrumentation. Yet, the vast maj...

  18. 15. OFFSHORE VIEW OF PIER, LOOKING EASTNORTHEAST, 3RD TEE, SHOWING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. OFFSHORE VIEW OF PIER, LOOKING EAST-NORTHEAST, 3RD TEE, SHOWING RESTROOMS IN FOREGROUND WITH PUMPHOUSE AND TACKLE BOX BEHIND - Huntington Beach Municipal Pier, Pacific Coast Highway at Main Street, Huntington Beach, Orange County, CA

  19. 19. OFFSHORE VIEW OF 3RD TEE, LOOKING NORTHWEST, SHOWING SOUTHEAST ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    19. OFFSHORE VIEW OF 3RD TEE, LOOKING NORTHWEST, SHOWING SOUTHEAST SIDE OF TACKLE BOX IN FOREGROUND - Huntington Beach Municipal Pier, Pacific Coast Highway at Main Street, Huntington Beach, Orange County, CA

  20. 5. BUILDING 223, NORTH SIDE, OBLIQUE VIEW, FROM 3RD STREET, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. BUILDING 223, NORTH SIDE, OBLIQUE VIEW, FROM 3RD STREET, LOOKING WEST - Oakland Naval Supply Center, Pier Transit Sheds, North Marginal Wharf, between First & Third Streets, Oakland, Alameda County, CA

  1. 5. WEST SIDE, FROM ACROSS 3RD STREET, LOOKING EAST, WITH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. WEST SIDE, FROM ACROSS 3RD STREET, LOOKING EAST, WITH NAVY EXCHANGE RETAIL SERVICE AT TOP OF STAIRS. - Oakland Naval Supply Center, Administration Building-Cafeteria, East of Third Street between D & E Streets, Oakland, Alameda County, CA

  2. 19. MILL NO. 1, 3rd FLOOR, CEILING TRACKING WITH AIR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    19. MILL NO. 1, 3rd FLOOR, CEILING TRACKING WITH AIR CLEANER (BLEW DUST/LINT DOWNWARD WHILE TRAVELING ON TRACK OVER MILL MACHINERY). - Prattville Manufacturing Company, Number One, 242 South Court Street, Prattville, Autauga County, AL

  3. 75 FR 34450 - Filing Dates for the Indiana Special Election in the 3rd Congressional District

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-17

    ... General Election on November 2, 2010, to fill the U.S. House seat in the 3rd Congressional District... has not previously filed a report, the first report must cover all activity that occurred before...

  4. 1. WEST SIDE AND ENTRY, FROM ACROSS 3RD STREET, LOOKING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. WEST SIDE AND ENTRY, FROM ACROSS 3RD STREET, LOOKING EAST. - Oakland Naval Supply Center, Administration Building-Dental Annex-Dispensary, Between E & F Streets, East of Third Street, Oakland, Alameda County, CA

  5. Aloe Vera in Dentistry

    PubMed Central

    Kumar, G Senthil; Muruganandan, J; Prasad, T Srinivasa

    2014-01-01

    Aloe vera is a medicinal plant which has been used for thousands of years. The health benefits of aloe vera is well known and the dental uses of this plant is multiple. Interest is gathering among researchers regarding the use of this plant. Studies have proved the antiseptic, anti inflammatory, antiviral and antifungal properties of aloe vera and the use of this plant is proved beneficial. This plant is proved to be non allergic and very good in building up the immune system. Aloe vera is gaining popularity in dentistry as it is completely natural and there is no side effects being reported with its use. This paper gives an overview of the uses of this miracle plant and its uses in dentistry. PMID:25478478

  6. Aloe vera in dentistry.

    PubMed

    Sujatha, G; Kumar, G Senthil; Muruganandan, J; Prasad, T Srinivasa

    2014-10-01

    Aloe vera is a medicinal plant which has been used for thousands of years. The health benefits of aloe vera is well known and the dental uses of this plant is multiple. Interest is gathering among researchers regarding the use of this plant. Studies have proved the antiseptic, anti inflammatory, antiviral and antifungal properties of aloe vera and the use of this plant is proved beneficial. This plant is proved to be non allergic and very good in building up the immune system. Aloe vera is gaining popularity in dentistry as it is completely natural and there is no side effects being reported with its use. This paper gives an overview of the uses of this miracle plant and its uses in dentistry. PMID:25478478

  7. Nanotechnology in Dentistry Today

    PubMed Central

    Ogle, OE; Byles, N

    2014-01-01

    A review was done of nanotechnology as it applies to dentistry today. Information was gathered fro literature search, research data and material inserts in products. Nanotechnology deals with th physical, chemical and biological properties of structures and their components at nanoscale dime sions. One of the biggest contributions to restorative and aesthetic dentistry has been nanocomposite These composites are characterized by filler-particle sizes ≤ 100 nm and offer aesthetic and streng advantages over the current microfilled and hybrid resin-based composites. Nanoparticles for coatin implant surfaces and the nanopatterning of dental implants are leading to better osseointegration an improved physiologic functions of implants, while nanophase hydroxyapatite has improved i adaptation into bone graft sites. Nano-biochips are now making oral cancer screening and diagnos of diseases by saliva easier and more affordable. PMID:25429479

  8. Corporate dentistry in 2032?

    PubMed

    Watson, Michael

    2012-07-01

    During the last 20 years, there has been considerable growth in the number of dental practices owned by corporate bodies. At present, well over 800 practices are owned by such bodies and they employ over 3000 dentists. This paper describes the factors that have led to this growth and explores the advantages and disadvantages of 'corporate' dentistry for patients, dentists, and the dental team. It then considers how and why dental practice may change over the next 20 years and concludes that by 2032 the small one-dentist practice may well be in the past. It is likely that smaller practices will have to work in some form of association if they are to survive. Although their current model is unstable, corporates are likely to adapt to a changing environment. By 2032, in some cases, dentistry may well be taken out of its conventional setting, into supermarkets or a school environment. PMID:23073159

  9. The business of dentistry.

    PubMed

    Levin, Roger

    2003-05-01

    Dentistry is a rapidly evolving health care occupation that can offer an outstanding quality of life, allowing each doctor to define how he or she would like to practice. Dentistry has a high-income potential compared with many other occupations, and this also contributes to the quality of life of dental professionals. But the profession can be overwhelming due to the variety of procedures performed, the large number of systems in place and the multiple management issues to deal with. While there is no one-size-fits-all system that will work for all practices, KPIs can help each professional evaluate how he or she would like the practice to operate and grow. Using KPIs to help identify the strengths and weaknesses of your practice, you can set and establish the systems that will assure achievement of those goals. PMID:12785502

  10. Minimal Intervention Dentistry – A New Frontier in Clinical Dentistry

    PubMed Central

    NK., Bajwa; A, Pathak

    2014-01-01

    Minimally invasive procedures are the new paradigm in health care. Everything from heart bypasses to gall bladder, surgeries are being performed with these dynamic new techniques. Dentistry is joining this exciting revolution as well. Minimally invasive dentistry adopts a philosophy that integrates prevention, remineralisation and minimal intervention for the placement and replacement of restorations. Minimally invasive dentistry reaches the treatment objective using the least invasive surgical approach, with the removal of the minimal amount of healthy tissues. This paper reviews in brief the concept of minimal intervention in dentistry. PMID:25177659

  11. Women in Irish dentistry.

    PubMed

    hOgartaigh, Margaret O

    2005-01-01

    In 1928, women constituted barely five per cent of Irish dentists. This can be attributed to a variety of factors, especially societal attitudes. However, there were perceptions that women brought certain attributes to the profession. By 1960, the proportion of women in dentistry had increased to 11%, and, by 1980, one-in-five dentists registered in the Republic of Ireland were female. PMID:16358681

  12. Laser dentistry practice management.

    PubMed

    Weiner, Gerald P

    2004-10-01

    Laser treatment in promoting dental care is present in many areas and disciplines. The public has an expectation that their dentist should be up to date with the most modern and advanced care possible. The future of lasers in dentistry is promising. New applications and procedures are constantly being developed. Dentists who position themselves to provide and manage these new technologies stand to be rewarded from clinical and financial aspects. Proper practice management strategies are key to achieving this success. PMID:15464566

  13. Survey of K-3rd-Grade Teachers' Knowledge of Ear Infections and Willingness to Participate in Prevention Programs

    ERIC Educational Resources Information Center

    Danhauer, Jeffrey L.; Johnson, Carole E.; Caudle, Abby T.

    2011-01-01

    Purpose: Ear infections are prevalent in kindergarten through 3rd-grade (K-3rd) children and can affect their performance at school. Chewing gum, when administered by parents and teachers, can help prevent ear infections in children. This pilot study surveyed K-3rd-grade teachers in the Santa Barbara School Districts to assess their knowledge…

  14. Survey of K-3rd-Grade Teachers' Knowledge of Ear Infections and Willingness to Participate in Prevention Programs

    ERIC Educational Resources Information Center

    Danhauer, Jeffrey L.; Johnson, Carole E.; Caudle, Abby T.

    2011-01-01

    Purpose: Ear infections are prevalent in kindergarten through 3rd-grade (K-3rd) children and can affect their performance at school. Chewing gum, when administered by parents and teachers, can help prevent ear infections in children. This pilot study surveyed K-3rd-grade teachers in the Santa Barbara School Districts to assess their knowledge

  15. Minimally legally invasive dentistry.

    PubMed

    Lam, R

    2014-12-01

    One disadvantage of the rapid advances in modern dentistry is that treatment options have never been more varied or confusing. Compounded by a more educated population greatly assisted by online information in an increasingly litigious society, a major concern in recent times is increased litigation against health practitioners. The manner in which courts handle disputes is ambiguous and what is considered fair or just may not be reflected in the judicial process. Although legal decisions in Australia follow a doctrine of precedent, the law is not static and is often reflected by community sentiment. In medical litigation, this has seen the rejection of the Bolam principle with a preference towards greater patient rights. Recent court decisions may change the practice of dentistry and it is important that the clinician is not caught unaware. The aim of this article is to discuss legal issues that are pertinent to the practice of modern dentistry through an analysis of legal cases that have shaped health law. Through these discussions, the importance of continuing professional development, professional association and informed consent will be realized as a means to limit the legal complications of dental practice. PMID:25160114

  16. Interpreter-mediated dentistry.

    PubMed

    Bridges, Susan; Drew, Paul; Zayts, Olga; McGrath, Colman; Yiu, Cynthia K Y; Wong, H M; Au, T K F

    2015-05-01

    The global movements of healthcare professionals and patient populations have increased the complexities of medical interactions at the point of service. This study examines interpreter mediated talk in cross-cultural general dentistry in Hong Kong where assisting para-professionals, in this case bilingual or multilingual Dental Surgery Assistants (DSAs), perform the dual capabilities of clinical assistant and interpreter. An initial language use survey was conducted with Polyclinic DSAs (n = 41) using a logbook approach to provide self-report data on language use in clinics. Frequencies of mean scores using a 10-point visual analogue scale (VAS) indicated that the majority of DSAs spoke mainly Cantonese in clinics and interpreted for postgraduates and professors. Conversation Analysis (CA) examined recipient design across a corpus (n = 23) of video-recorded review consultations between non-Cantonese speaking expatriate dentists and their Cantonese L1 patients. Three patterns of mediated interpreting indicated were: dentist designated expansions; dentist initiated interpretations; and assistant initiated interpretations to both the dentist and patient. The third, rather than being perceived as negative, was found to be framed either in response to patient difficulties or within the specific task routines of general dentistry. The findings illustrate trends in dentistry towards personalized care and patient empowerment as a reaction to product delivery approaches to patient management. Implications are indicated for both treatment adherence and the education of dental professionals. PMID:25828074

  17. Natural medicaments in dentistry

    PubMed Central

    Sinha, Dakshita J.; Sinha, Ashish A.

    2014-01-01

    The major objective in root canal treatment is to disinfect the entire root canal system. Cleaning, shaping, and use of antimicrobial medicaments are effective in reducing the bacterial load to some extent, but some bacteria do remain behind and multiply, causing reinfection. Taking into consideration the ineffectiveness, potential side-effects and safety concerns of synthetic drugs, the herbal alternatives for endodontic usage might prove to be advantageous. Over the past decade, interest in drugs derived from medicinal plants has markedly increased. Phytomedicine has been used in dentistry as anti-inflammatory, antibiotic, analgesic, sedative and also as endodontic irrigant. Herbal preparations can be derived from the root, leaves, seeds, stem, and flowers. The PubMed database search revealed that the reference list for natural medicaments featured 1480 articles and in dentistry 173 articles. A forward search was undertaken on the selected articles and author names. This review focuses on various natural drugs and products as well as their therapeutic applications when used as phytomedicine in dentistry. PMID:25558153

  18. The Academy of Dentistry International.

    PubMed

    Ramus, Robert L

    2011-01-01

    The Academy of Dentistry International was founded to promote the art and science of dentistry, especially through research and continuing education. Its mission is international in the sense of promoting exchange and service. The organizational structure of ADI is discussed as well as its membership. A defining characteristic of the Academy is an array of programs around the world supported by the Academy of Dentistry International Foundation. PMID:21739866

  19. Nanotechnology and dentistry

    PubMed Central

    Ozak, Sule Tugba; Ozkan, Pelin

    2013-01-01

    Nanotechnology deals with the physical, chemical, and biological properties of structures and their components at nanoscale dimensions. Nanotechnology is based on the concept of creating functional structures by controlling atoms and molecules on a one-by-one basis. The use of this technology will allow many developments in the health sciences as well as in materials science, bio-technology, electronic and computer technology, aviation, and space exploration. With developments in materials science and biotechnology, nanotechnology is especially anticipated to provide advances in dentistry and innovations in oral health-related diagnostic and therapeutic methods. PMID:23408486

  20. Curriculum Guidelines for Operative Dentistry.

    ERIC Educational Resources Information Center

    Journal of Dental Education, 1984

    1984-01-01

    The American Association of Dental Schools' guidelines for operative dentistry curricula include an overview of the scope and objectives of operative dentistry, notes on the interrelationship of the discipline and the total curriculum, and an outline of primary educational goals, core content, specific behavioral objectives, sequencing, faculty,…

  1. 44. Master plan of 3rd floor, building 1, U.S. Naval ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    44. Master plan of 3rd floor, building 1, U.S. Naval supply activities, New York, Brooklyn, New York, public works department, March 2, 1953. Drawing #BK-S1-3. Scale 1/16=1. - U.S. Navy Fleet Supply Base, Storehouse No. 1, 830 Third Avenue, Brooklyn, Kings County, NY

  2. Patient protection at risk in IEC 60601-1 3rd edition.

    PubMed

    Dybdahl, K

    2009-09-01

    Engineers developing medical electrical equipment in accordance with IEC 60601-1 3rd edition are in immediate need of short- and long-term solutions to avoid potentially hazardous designs as a result of misinterpretation of the requirements. Several options are described to ensure consistency and safety of devices. PMID:19852179

  3. Using Food as a Tool to Teach Science to 3rd Grade Students in Appalachian Ohio

    ERIC Educational Resources Information Center

    Duffrin, Melani W.; Hovland, Jana; Carraway-Stage, Virginia; McLeod, Sara; Duffrin, Christopher; Phillips, Sharon; Rivera, David; Saum, Diana; Johanson, George; Graham, Annette; Lee, Tammy; Bosse, Michael; Berryman, Darlene

    2010-01-01

    The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. In 2007 to 2008, a foods curriculum developed by professionals in nutrition and education was implemented in 10 3rd-grade classrooms in Appalachian Ohio; teachers in these

  4. Prediction of High School Dropout or Graduation from 3rd Grade Data.

    ERIC Educational Resources Information Center

    Lloyd, Dee Norman; Bleach, Gail

    Measures of background characteristics, school performance, and tested achievement were analyzed for four race-by-sex samples of 3rd graders who were known to have later become high school dropouts or graduates. Results showed that as early as five to eight years before leaving school, dropouts differed significantly from graduates in age, tested…

  5. 16. 3RD FLOOR, J.M. LEHMANN CO. FIVEROLL TOILET SOAP MILL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. 3RD FLOOR, J.M. LEHMANN CO. FIVE-ROLL TOILET SOAP MILL INSTALLED 1950, TO WEST; BUCKET CONVEYOR AT RIGHT MOVED WASTE FROM 2ND FLOOR SOAP PRESSES TO 5TH FLOOR RE-MANUFACTURE - Colgate & Company Jersey City Plant, Building No. B-14, 54-58 Grand Street, Jersey City, Hudson County, NJ

  6. Colorectal cancer in inflammatory bowel disease: results of the 3rd ECCO pathogenesis scientific workshop (I).

    PubMed

    Sebastian, Shaji; Hernández, Vincent; Myrelid, Pär; Kariv, Revital; Tsianos, Epameinondas; Toruner, Murat; Marti-Gallostra, Marc; Spinelli, Antonino; van der Meulen-de Jong, Andrea E; Yuksel, Elif Sarıtas; Gasche, Christoph; Ardizzone, Sandro; Danese, Silvio

    2014-01-01

    Epidemiological studies demonstrate an increased risk of colorectal cancer in patients with inflammatory bowel disease (IBD). A detailed literature review was conducted on epidemiology, risk factors, pathophysiology, chemoprevention and outcomes of colorectal cancer (CRC) in IBD as part of the 3rd ECCO scientific pathogenesis workshop. PMID:23664897

  7. PreK-3rd: What Is the Price Tag? Policy to Action Brief. No. 2

    ERIC Educational Resources Information Center

    Shore, Rima

    2009-01-01

    In an era of intense fiscal pressures, educators are focusing on those investments most likely to lift student achievement. They are also trying to make more strategic use of existing resources. To achieve these goals, a growing number of policymakers are considering integrated PreK-3rd approaches. Increasingly, they are recognizing that the first…

  8. Litigating for change: proceedings from the 3rd Symposium on HIV, Law and Human Rights. Introduction.

    PubMed

    2011-10-01

    From 9-10 June 2011, the 3rd Symposium on HIV, Law and Human Rights took place in Toronto, drawing over 150 participants from across Canada. The event built on the success of the two previous Symposia and brought together policymakers, legal professionals, health researchers, students, activists, community organizations and people living with HIV or from communities particularly affected by HIV. PMID:22165282

  9. AL State Profile. Alabama: Alabama High School Graduation Exam (AHSGE), 3rd Edition

    ERIC Educational Resources Information Center

    Center on Education Policy, 2010

    2010-01-01

    This paper provides information about Alabama High School Graduation Exam, 3rd Edition, a comprehensive standards-based exam. The purpose of the exam is to: (1) Provide schools with student academic diagnostic information; (2) Determine prospective high school graduates' mastery of the state curriculum; (3) Increase alignment of local curriculum…

  10. Using Food as a Tool to Teach Science to 3rd Grade Students in Appalachian Ohio

    ERIC Educational Resources Information Center

    Duffrin, Melani W.; Hovland, Jana; Carraway-Stage, Virginia; McLeod, Sara; Duffrin, Christopher; Phillips, Sharon; Rivera, David; Saum, Diana; Johanson, George; Graham, Annette; Lee, Tammy; Bosse, Michael; Berryman, Darlene

    2010-01-01

    The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. In 2007 to 2008, a foods curriculum developed by professionals in nutrition and education was implemented in 10 3rd-grade classrooms in Appalachian Ohio; teachers in these…

  11. Polyacrylic cements in dentistry.

    PubMed

    Mount, G J

    1990-04-01

    The polyacrylic cements were first introduced to dentistry in the middle 1960's when Smith showed the value of the polyacids, in developing adhesion to enamel and dentine. Within 10 years, Wilson had advanced the concept by changing the powder from a zinc oxide to glass and at the same time varying the poly-acid used. Both cements depend on the development of complex polyacrylate chains which can be linked with metal ions and in turn can form dynamic linkages with both enamel and dentine. The original polycarboxylate cement has many desirable characteristics and is still a useful cement for luting crowns and bridges and for lining cavities. However it is no longer widely used because it has been somewhat overshadowed by the glass ionomer cements which are even more versatile and have superior physical properties. By varying the type of glass, the fluoride content of the glass and the powder/liquid ratio as well as adding inclusions of other metals such as silver they can fulfil a variety of roles in restorative dentistry. However, as with any restorative material, it is essential that the operator fully understand the requirements for successful placement. The basic rules are reviewed for each of the types currently available and the steps for clinical success are detailed. PMID:2076229

  12. New technologies in dentistry

    NASA Astrophysics Data System (ADS)

    Zanin, Fatima A. A.; Brugnera, Aldo, Jr.; Pecora, Jesus D.

    1999-05-01

    The technology in dentistry has been developed significantly lately, increasing the technological level of new materials, methods and equipment have been developed. Undoubtedly the CO2 laser has contributed to this evolution particular to the treatment of the infected dentin. CO2 laser can sterilize and promote increase 6 to 8 times of dentin resistance, through the transformation the hydroxyapatite in calcium-phosphato-hydroxyapatite. We can reassure our patients about the use of pulsed CO2 laser due to better preservation of dental structure and its benefits permitting advanced esthetic treatments. The CEREC system, registers a tri-dimensional image of the preparation through a scan system, and sends it to the computer and the operator will edit the restorations so the equipment will finish porcelain restoration. The authors used a new laser 650 nm for caries detection and the other low lever laser (670 nm and 730 nm) considered an auxiliary method to prevent and treat the hypersensitivity in dentin.

  13. Nanocharacterization in dentistry.

    PubMed

    Sharma, Shivani; Cross, Sarah E; Hsueh, Carlin; Wali, Ruseen P; Stieg, Adam Z; Gimzewski, James K

    2010-01-01

    About 80% of US adults have some form of dental disease. There are a variety of new dental products available, ranging from implants to oral hygiene products that rely on nanoscale properties. Here, the application of AFM (Atomic Force Microscopy) and optical interferometry to a range of dentistry issues, including characterization of dental enamel, oral bacteria, biofilms and the role of surface proteins in biochemical and nanomechanical properties of bacterial adhesins, is reviewed. We also include studies of new products blocking dentine tubules to alleviate hypersensitivity; antimicrobial effects of mouthwash and characterizing nanoparticle coated dental implants. An outlook on future "nanodentistry" developments such as saliva exosomes based diagnostics, designing biocompatible, antimicrobial dental implants and personalized dental healthcare is presented. PMID:20640166

  14. Nanocharacterization in Dentistry

    PubMed Central

    Sharma, Shivani; Cross, Sarah E.; Hsueh, Carlin; Wali, Ruseen P.; Stieg, Adam Z.; Gimzewski, James K.

    2010-01-01

    About 80% of US adults have some form of dental disease. There are a variety of new dental products available, ranging from implants to oral hygiene products that rely on nanoscale properties. Here, the application of AFM (Atomic Force Microscopy) and optical interferometry to a range of dentistry issues, including characterization of dental enamel, oral bacteria, biofilms and the role of surface proteins in biochemical and nanomechanical properties of bacterial adhesins, is reviewed. We also include studies of new products blocking dentine tubules to alleviate hypersensitivity; antimicrobial effects of mouthwash and characterizing nanoparticle coated dental implants. An outlook on future nanodentistry developments such as saliva exosomes based diagnostics, designing biocompatible, antimicrobial dental implants and personalized dental healthcare is presented. PMID:20640166

  15. Nanorobots: Future in dentistry

    PubMed Central

    Shetty, Neetha J.; Swati, P.; David, K.

    2013-01-01

    The purpose of this paper is to review the phenomenon of nanotechnology as it might apply to dentistry as a new field called nanodentistry. Treatment possibilities might include the application of nanotechnology to local anesthesia, dentition renaturalization, the permanent cure for hypersensitivity, complete orthodontic realignment in a single visit, covalently bonded diamondized enamel, and continuous oral health maintenance using mechanical dentifrobots. Dental nanorobots could be constructed to destroy caries-causing bacteria or to repair tooth blemishes where decay has set in, by using a computer to direct these tiny workers in their tasks. Dental nanorobots might be programed to use specific motility mechanisms to crawl or swim through human tissue with navigational precision, to acquire energy, to sense and manipulate their surroundings, to achieve safe cytopenetration, and to use any of a multitude of techniques to monitor, interrupt, or alter nerve-impulse traffic in individual nerve cells in real time. PMID:23960556

  16. Piezosurgery in implant dentistry

    PubMed Central

    Stübinger, Stefan; Stricker, Andres; Berg, Britt-Isabelle

    2015-01-01

    Piezosurgery, or the use of piezoelectric devices, is being applied increasingly in oral and maxillofacial surgery. The main advantages of this technique are precise and selective cuttings, the avoidance of thermal damage, and the preservation of soft-tissue structures. Through the application of piezoelectric surgery, implant-site preparation, bone grafting, sinus-floor elevation, edentulous ridge splitting or the lateralization of the inferior alveolar nerve are very technically feasible. This clinical overview gives a short summary of the current literature and outlines the advantages and disadvantages of piezoelectric bone surgery in implant dentistry. Overall, piezoelectric surgery is superior to other methods that utilize mechanical instruments. Handling of delicate or compromised hard- and soft-tissue conditions can be performed with less risk for the patient. With respect to current and future innovative surgical concepts, piezoelectric surgery offers a wide range of new possibilities to perform customized and minimally invasive osteotomies. PMID:26635486

  17. Ozone Therapy in Dentistry

    PubMed Central

    Domb, William C

    2014-01-01

    Summary The 21st century dental practice is quite dynamic. New treatment protocols and new materials are being developed at a rapid pace. Ozone dental therapy falls into the category of new treatment protocols in dentistry, yet ozone is not new at all. Ozone therapy is already a major treatment modality in Europe, South America and a number of other countries. What is provided here will not be an exhaustive scientific treatise so much as a brief general introduction into what dentists are now doing with ozone therapies and the numerous oral/systemic links that make this subject so important for physicians so that, ultimately, they may serve their patients more effectively and productively. PMID:25363268

  18. Nanorobots: Future in dentistry.

    PubMed

    Shetty, Neetha J; Swati, P; David, K

    2013-04-01

    The purpose of this paper is to review the phenomenon of nanotechnology as it might apply to dentistry as a new field called nanodentistry. Treatment possibilities might include the application of nanotechnology to local anesthesia, dentition renaturalization, the permanent cure for hypersensitivity, complete orthodontic realignment in a single visit, covalently bonded diamondized enamel, and continuous oral health maintenance using mechanical dentifrobots. Dental nanorobots could be constructed to destroy caries-causing bacteria or to repair tooth blemishes where decay has set in, by using a computer to direct these tiny workers in their tasks. Dental nanorobots might be programed to use specific motility mechanisms to crawl or swim through human tissue with navigational precision, to acquire energy, to sense and manipulate their surroundings, to achieve safe cytopenetration, and to use any of a multitude of techniques to monitor, interrupt, or alter nerve-impulse traffic in individual nerve cells in real time. PMID:23960556

  19. Conference report: the 3rd Global CRO Council for Bioanalysis at the International Reid Bioanalytical Forum.

    PubMed

    Breda, Massimo; Garofolo, Fabio; Caturla, Maria Cruz; Couerbe, Philippe; Maltas, John; White, Peter; Struwe, Petra; Sangster, Timothy; Riches, Suzanne; Hillier, Jim; Garofolo, Wei; Zimmerman, Thomas; Pawula, Maria; Collins, Eileen; Schoutsen, Dick; Wieling, Jaap; Green, Rachel; Houghton, Richard; Jeanbaptiste, Bernard; Claassen, Quinton; Harter, Tammy; Seymour, Mark

    2011-12-01

    The 3rd Global CRO Council Closed Forum was held on the 3rd and 4th July 2011 in Guildford, United Kingdom, in conjunction with the 19th International Reid Bioanalytical Forum. In attendance were 21 senior-level representatives from 19 CROs on behalf of nine European countries and, for many of the attendees, this occasion was the first time that they had participated in a GCC meeting. Therefore, this closed forum was an opportunity to increase awareness of the aim of the GCC and how it works, share information about bioanalytical regulations and audit findings from different agencies, their policies and procedures and also to discuss some topics of interest and aim to develop ideas and provide recommendations for bioanalytical practices at future GCC meetings in Europe. PMID:22185271

  20. Insights from the 3rd World Congress on Integrated Computational Materials Engineering

    NASA Astrophysics Data System (ADS)

    Howe, D.; Goodlet, B.; Weaver, J.; Spanos, G.

    2016-05-01

    The 3rd World Congress on Integrated Computational Materials Engineering (ICME) was a forum for presenting the "state-of-the-art" in the ICME discipline, as well as for charting a path for future community efforts. The event concluded with in an interactive panel-led discussion that addressed such topics as integrating efforts between experimental and computational scientists, uncertainty quantification, and identifying the greatest challenges for future workforce preparation. This article is a summary of this discussion and the thoughts presented.

  1. Insights from the 3rd World Congress on Integrated Computational Materials Engineering

    NASA Astrophysics Data System (ADS)

    Howe, D.; Goodlet, B.; Weaver, J.; Spanos, G.

    2016-03-01

    The 3rd World Congress on Integrated Computational Materials Engineering (ICME) was a forum for presenting the "state-of-the-art" in the ICME discipline, as well as for charting a path for future community efforts. The event concluded with in an interactive panel-led discussion that addressed such topics as integrating efforts between experimental and computational scientists, uncertainty quantification, and identifying the greatest challenges for future workforce preparation. This article is a summary of this discussion and the thoughts presented.

  2. 13. Photocopy of 1920 drawing titled: BUILDING 78, 3RD FLOOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photocopy of 1920 drawing titled: BUILDING 78, 3RD FLOOR BALCONY AND FIRE ESCAPES, including plans for skylight and North Elevation. HABS photograph is an 8x10' contact print made from a high contrast negative of an enlargement made from microfiche. Original is in the collection of Department of Public Works, Puget Sound Naval Shipyard, Bremerton, WA. - Puget Sound Naval Shipyard, Administration Building, Farragut Avenue, Bremerton, Kitsap County, WA

  3. CLINICAL ASSESSMENT OF THE 1/3rd RADIUS USING A NEW DESKTOP ULTRASONIC BONE DENSITOMETER

    PubMed Central

    Stein, Emily M.; Rosete, Fernando; Young, Polly; Kamanda-Kosseh, Mafo; McMahon, Donald J.; Luo, Gangming; Kaufman, Jonathan J.; Shane, Elizabeth; Siffert, Robert S.

    2012-01-01

    The objectives of this study were to evaluate the capability of a novel ultrasound device to clinically estimate bone mineral density (BMD) at the 1/3rd radius. The device rests on a desktop and is portable, and permits real-time evaluation of the radial BMD. The device measures two (2) net time delay (NTD) parameters, NTDDW and NTDCW. NTDDW is defined as the difference between the transit time of an ultrasound pulse to travel through soft-tissue, cortex and medullary cavity, and the transit time through soft tissue only of equal overall distance. NTDCW is defined as the difference between the transit time of an ultrasound pulse to travel through soft-tissue and cortex only, and the transit time through soft tissue only again of equal overall distance. The square root of the product of these two parameters is a measure of the radial BMD at the 1/3rd location as measured by dual-energy x-ray absorptiometry (DXA). A clinical IRB-approved study measured ultrasonically sixty adults at the 1/3rd radius. BMD was also measured at the same anatomical site and time using DXA. A linear regression using NTD produced a linear correlation coefficient of 0.93 (P<0.001). These results are consistent with previously reported simulation and in vitro studies. In conclusion, although x-ray methods are effective in bone mass assessment, osteoporosis remains one of the largest undiagnosed and under-diagnosed diseases in the world today. The research described here should enable significant expansion of diagnosis and monitoring of osteoporosis through a desktop device that ultrasonically assesses bone mass at the 1/3rd radius. PMID:23312957

  4. 3rd Annual Conference on High Energy Astrophysics in Southern Africa

    NASA Astrophysics Data System (ADS)

    The 3rd annual conference on High Energy Astrophysics in Southern Africa (HEASA 2015) aims to bring together multiwavelength observers and theorists with research expertise and interest in high-energy astrophysics from all around Southern Africa, supplemented by selected international keynote speakers. This will foster multi wavelength astronomy collaborations within the region of southern Africa and build connections to world-leading experts from the U.S., Europe, and Asia.

  5. 3rd Workshop on Semantic Ambient Media Experience (SAME) - In Conjunction with AmI-2010

    NASA Astrophysics Data System (ADS)

    Lugmayr, Artur; Stockleben, Bjoern; Kaario, Juha; Pogorelc, Bogdan; Risse, Thomas

    The SAME workshop takes place for the 3rd time in 2010, and it's theme in this year was creating the business value-creation, vision, media theories and technology for ambient media. SAME differs from other workshops due to its interactive and creative touch and going beyond simple powerpoint presentations. Several results will be published by AMEA - the AMbient Media Association (www.ambientmediaassociation.org.

  6. Allergic contact dermatitis in dentistry.

    PubMed

    Rubel, D M; Watchorn, R B

    2000-05-01

    Allergic contact dermatitis (ACD) in dentistry may affect dentists and orthodontists, technicians, nurses and patients. Changes to dental practice in recent years have altered the reported frequencies of allergens causing ACD in both dental personnel and patients. Allergic contact dermatitis to medicaments, metals and glutaraldehyde were previously common allergens in dentistry; however, widespread adoption of rubber gloves by staff has resulted in a significant increase in ACD to glove allergens in both dental staff and their patients, while affording protection against the traditional allergens. Both public concerns about potential toxicity of metals in oral restorations and a greater demand for cosmetic dentistry, have resulted in greater use of acrylics and resins by dental personnel, exposing them to highly allergenic materials. Dermatologists need to be aware of the newer allergenic materials used in dentistry in order to correctly manage skin diseases in this high-risk group. PMID:10812698

  7. Early dentistry in Victoria, Australia.

    PubMed

    Atkinson, Henry

    2015-01-01

    At the time of settlement and in the years leading up to the establishment in 1884 of the Odontological Society of Victoria, dentistry was an unregulated activity practised simultaneously by those that had received the best apprenticeship training and those that had no training what-so-ever. Under the influence of dentists such as John Iliffe however, this situation was soon to change. In 1887 the first Dental Act was passed making it a legal requirement for anyone practicing dentistry to be registered. In 1890, the Melbourne Dental Hospital opened its doors to its first patients, and in 1897, the Australian College of Dentistry, later to become a school within the University of Melbourne, began teaching a dental course. Combined, these three moments in history lead to the eradication of the unscrupulous practitioner and laid the path for the development and professionalization of dentistry in the state of Victoria. PMID:25707153

  8. American Academy of Pediatric Dentistry

    MedlinePlus

    ... Litch's Law Log HIPAA Forms Practice Management and Marketing Newsletter Webinar Materials Member Resources Membership Directory Awards ... Archives Access Pediatric Dentistry Today Practice Management and Marketing Newsletter Policies & Guidelines News Room Latest News Releases & ...

  9. Using Photographs to Probe Students' Understanding of Physical Concepts: The Case of Newton's 3rd Law

    NASA Astrophysics Data System (ADS)

    Eshach, Haim

    2010-08-01

    The starting point of the present research is the following question: since we live in an age that makes increasing use of visual representations of all sorts, is not the visual representation a learner constructs a window into his/her understanding of what is or is not being learned? Following this direction of inquiry, the present preliminary study introduces and evaluates a novel technique for pinpointing learners’ misconceptions, namely, one that has learners create and interpret their own photographs (CIP). 27 high-school students and 26 pre-service teacher trainees were asked to assume the role of textbook designers and create a display—photograph plus attached verbal explanation—which, in their opinion, best depicted Newton’s 3rd law. Subsequent analysis of the participants’ photographs yielded the following six misconception categories: 3rd law not depicted; 3rd law depicts a sequence of events; tendency to introduce irrelevant entities in explanations; the word ‘reaction’ used colloquially; tendency to restrict the application of the third law to dynamic situations; and informal explanations in which the word “force” is absent. The findings indicate that, indeed, the CIP method can be effectively employed to elicit, detect, and investigate learners’ misconceptions. The CIP method joins the growing efforts to utilize the yet relatively untapped potential of visual tools for science education purposes.

  10. The Goodrich 3rd generation DB-110 system: successful flight test on the F-16 aircraft

    NASA Astrophysics Data System (ADS)

    Lange, Davis; Iyengar, Mrinal; Maver, Larry; Dyer, Gavin; Francis, John

    2007-04-01

    The 3rd Generation Goodrich DB-110 system provides users with a three (3) field-of-view high performance Airborne Reconnaissance capability that incorporates a dual-band day and nighttime imaging sensor, a real time recording and a real time data transmission capability to support long range, medium range, and short range standoff and over-flight mission scenarios, all within a single pod. Goodrich developed their 3rd Generation Airborne Reconnaissance Pod for operation on a range of aircraft types including F-16, F-15, F-18, Euro-fighter and older aircraft such as the F-4, F-111, Mirage and Tornado. This system upgrades the existing, operationally proven, 2nd generation DB-110 design with enhancements in sensor resolution, flight envelope and other performance improvements. Goodrich recently flight tested their 3rd Generation Reconnaissance System on a Block 52 F-16 aircraft with first flight success and excellent results. This paper presents key highlights of the system and presents imaging results from flight test.

  11. Recent advances on developing 3rd generation enzyme electrode for biosensor applications.

    PubMed

    Das, Priyanki; Das, Madhuri; Chinnadayyala, Somasekhar R; Singha, Irom Manoj; Goswami, Pranab

    2016-05-15

    The electrochemical biosensor with enzyme as biorecognition element is traditionally pursued as an attractive research topic owing to their high commercial perspective in healthcare and environmental sectors. The research interest on the subject is sharply increased since the beginning of 21st century primarily, due to the concomitant increase in knowledge in the field of material science. The remarkable effects of many advance materials such as, conductive polymers and nanomaterials, were acknowledged in the developing efficient 3rd generation enzyme bioelectrodes which offer superior selectivity, sensitivity, reagent less detection, and label free fabrication of biosensors. The present review article compiles the major knowledge surfaced on the subject since its inception incorporating the key review and experimental papers published during the last decade which extensively cover the development on the redox enzyme based 3rd generation electrochemical biosensors. The tenet involved in the function of these direct electrochemistry based enzyme electrodes, their characterizations and various strategies reported so far for their development such as, nanofabrication, polymer based and reconstitution approaches are elucidated. In addition, the possible challenges and the future prospects in the development of efficient biosensors following this direct electrochemistry based principle are discussed. A comparative account on the design strategies and critical performance factors involved in the 3rd generation biosensors among some selected prominent works published on the subject during last decade have also been included in a tabular form for ready reference to the readers. PMID:26735873

  12. Ultrasonics in Dentistry

    NASA Astrophysics Data System (ADS)

    Walmsley, A. D.

    Ultrasonic instruments have been used in dentistry since the 1950's. Initially they were used to cut teeth but very quickly they became established as an ultrasonic scaler which was used to remove deposits from the hard tissues of the tooth. This enabled the soft tissues around the tooth to return to health. The ultrasonic vibrations are generated in a thin metal probe and it is the working tip that is the active component of the instrument. Scanning laser vibrometry has shown that there is much variability in their movement which is related to the shape and cross sectional shape of the probe. The working instrument will also generate cavitation and microstreaming in the associated cooling water. This can be mapped out along the length of the instrument indicating which are the active areas. Ultrasonics has also found use for cleaning often inaccessible or different surfaces including root canal treatment and dental titanium implants. The use of ultrasonics to cut bone during different surgical techniques shows considerable promise. More research is indicated to determine how to maximize the efficiency of such instruments so that they are more clinically effective.

  13. Herbs in dentistry.

    PubMed

    Taheri, Jamile B; Azimi, Somayyeh; Rafieian, Nasrin; Zanjani, Hosein Akhavan

    2011-12-01

    Herbs have been used for centuries to prevent and control disease. Herbal extracts are effective because they interact with specific chemical receptors within the body and are in a pharmacodynamic sense, drugs themselves. By using herbal medicines, patients have averted the many side effects that generally come with traditional medicines, but this does not mean that side effects do not occur. Only knowledgeable practitioners can prescribe the right herb and its proper dosage. Herbal medicines had been considered in every culture, however, pharmaceutical companies overturned this type of thinking. Now, pharmaceuticals are called traditional and herbs are libeled as the 'alternative'. The biggest challenge and problem is lack of information about the effect of herbs in oral tissues, mechanism of effect, and side effects. Several popular conventional drugs on the market are derived from herbs. These include aspirin (from white willow bark), digitalis (from foxglove), and sudafed (modelled after a component in the plant ephedra). Herbal products can vary in their potency. Therefore, care must be taken in selecting herbs, even so, herbal medicines have dramatically fewer side effects and are safer to use than conventional medications. The herbs described in this article are Bloodroot, Caraway, Chamomile, Echinacea, Myrrh, Peppermint, Rosemary, Sage, Thyme, Aloe Vera, Propolis, and a summary of other herbs that are useful in dentistry. Herbs may be good alternatives to current treatments for oral health problems but it is clear that we need more research. PMID:22117784

  14. Preface to Special Topic: Invited Papers of the 3rd International Conference on Ultrafast Structural Dynamics

    PubMed Central

    Johnson, S. L.

    2016-01-01

    The ability to visualize the real-time dynamics of atomic, magnetic, and electronic structure is widely recognized in many fields as a key element underpinning many important processes in chemistry, materials science, and biology. The need for an improved understanding of such processes becomes acute as energy conversion processes on fast time scales become increasingly relevant to problems in science and technology. This special issue, containing invited papers from participants at the 3rd International Conference on Ultrafast Structural Dynamics held June 10–12, 2015 in Zurich, Switzerland, discusses several recent developments in this area. PMID:27191008

  15. Advanced Control Surface Seal Development at NASA GRC for 3rd Generation RLV

    NASA Technical Reports Server (NTRS)

    Dunlap, Patrick H., Jr.; Steinetz, Bruce M.; DeMange, Jeffrey J.; Breen, Daniel P.

    2002-01-01

    NASA's Glenn Research Center (GRC) is developing advanced control surface seal technologies for the 3rd Generation RLV program. GRC has designed several new test rigs to simulate the temperatures, pressures, and scrubbing conditions that seals would have to endure during service. A hot compression test rig and hot scrub test rig are being developed to perform tests at temperatures up to 3000 F. Another new test rig allows simultaneous seal flow and scrub tests at room temperature to evaluate changes in seal performance with scrubbing. High temperature ceramic preloading devices are being developed and evaluated as ways to improve seal resiliency.

  16. Overview of the 3rd isirv-Antiviral Group Conference – advances in clinical management

    PubMed Central

    Hurt, Aeron C; Hui, David S; Hay, Alan; Hayden, Frederick G

    2015-01-01

    This review highlights the main points which emerged from the presentations and discussions at the 3rd isirv-Antiviral Group Conference - advances in clinical management. The conference covered emerging and potentially pandemic influenza viruses and discussed novel/pre-licensure therapeutics and currently approved antivirals and vaccines for the control of influenza. Current data on approved and novel treatments for non-influenza respiratory viruses such as MERS-CoV, respiratory syncytial virus (RSV) and rhinoviruses and the challenges of treating immunocompromised patients with respiratory infections was highlighted. PMID:25399715

  17. 3D printing in dentistry.

    PubMed

    Dawood, A; Marti Marti, B; Sauret-Jackson, V; Darwood, A

    2015-12-01

    3D printing has been hailed as a disruptive technology which will change manufacturing. Used in aerospace, defence, art and design, 3D printing is becoming a subject of great interest in surgery. The technology has a particular resonance with dentistry, and with advances in 3D imaging and modelling technologies such as cone beam computed tomography and intraoral scanning, and with the relatively long history of the use of CAD CAM technologies in dentistry, it will become of increasing importance. Uses of 3D printing include the production of drill guides for dental implants, the production of physical models for prosthodontics, orthodontics and surgery, the manufacture of dental, craniomaxillofacial and orthopaedic implants, and the fabrication of copings and frameworks for implant and dental restorations. This paper reviews the types of 3D printing technologies available and their various applications in dentistry and in maxillofacial surgery. PMID:26657435

  18. Using food as a tool to teach science to 3rd grade students in Appalachian Ohio

    PubMed Central

    Duffrin, Melani W.; Hovland, Jana; Carraway-Stage, Virginia; McLeod, Sara; Duffrin, Christopher; Phillips, Sharon; Rivera, David; Saum, Diana; Johanson, George; Graham, Annette; Lee, Tammy; Bosse, Michael; Berryman, Darlene

    2010-01-01

    The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. In 2007–2008, a foods curriculum developed by professionals in nutrition and education was implemented in 10 3rd-grade classrooms in Appalachian Ohio; teachers in these classrooms implemented 45 hands-on foods activities that covered 10 food topics. Subjects included measurement; food safety; vegetables; fruits; milk and cheese; meat, poultry, and fish; eggs; fats; grains; and meal management. Students in four other classrooms served as the control group. Mainstream 3rd-grade students were targeted because of their receptiveness to the subject matter, science standards for upper elementary grades, and testing that the students would undergo in 4th grade. Teachers and students alike reported that the hands-on FoodMASTER curriculum experience was worthwhile and enjoyable. Our initial classroom observation indicated that the majority of students, girls and boys included, were very excited about the activities, became increasingly interested in the subject matter of food, and were able to conduct scientific observations. PMID:20975982

  19. Geriatric Dentistry in the Predoctoral Curriculum.

    ERIC Educational Resources Information Center

    Moshman, Jack; And Others

    1985-01-01

    A survey of U.S. dental schools to determine the status of geriatric dentistry in the curriculum is discussed. Evidence of growing commitment is shown by deans who plan to give geriatric dentistry increasing priority in the future and by the fact that all schools now teach geriatric dentistry in some way. (MLW)

  20. [The first printed textbook in dentistry].

    PubMed

    Kóbor, András

    2010-12-01

    The first book focused solely on dentistry was published in Germany in 1530. Former scientific publications on dentistry were collected by an unknown author. The book presents 44 pages on the main issues of dentistry divided into 13 chapters. It was made by the Guttenberg method of printing. PMID:21268393

  1. The nano era in dentistry

    PubMed Central

    Mantri, Sneha S.; Mantri, Shivkumar P.

    2013-01-01

    Nanotechnology is a new transnational and transcultural development that is growing rapidly and pervasively. The potential impact of novel Nanodentistry Applications in disease diagnosis, therapy and prevention is foreseen to change oral health care in a fundamental way. This review presents a general overview of the novel nanomaterial and relevant advances of nanotechnology, focusing on promising dental applications. In particular, relevant applications are reported in Restorative dentistry, minimally invasive dental procedures, cancer diagnosis and treatment, molecular imaging and implant dentistry. Many applications are still in their infancy. An increasing number of products are currently under clinical investigation while some are commercially available. PMID:23633833

  2. PREFACE: 3rd International Symposium on Functional Materials 2009 (ISFM 2009) 3rd International Symposium on Functional Materials 2009 (ISFM 2009)

    NASA Astrophysics Data System (ADS)

    Kiwon, Kim; Li, Lu; Taehyun, Nam; Jouhyeon, Ahn

    2010-05-01

    The 3rd International Symposium on Functional Materials 2009 (ISFM 2009) and its preconference, Advances in Functional Materials 2009 (AFM 2009), were successfully held in the Republic of Korea from 15-18 June 2009 and in the People's Republic of China from 8-12 June 2009, respectively. The two conferences attracted over 300 oral and poster presentations from over 12 countries including Australia, Canada, China, Germany, Japan, India, Israel, Korea, The Netherlands, Thailand, the UK and the USA. In the two conferences, eight keynote lectures were delivered by S Miyazaki, S A Akbar, D J Singh, C Suryanarayana, M~Greenblatt, H Zhang, T Sato and J Ding. This topical issue of Physica Scripta contains papers presented at the ISFM 2009 and AFM 2009. Keyan Li from Dalian University, People's Republic of China, presents some empirical formulae to estimate the elastic moduli of rocksalt-, zincblende- and chalcopyrite-structured crystals, on the basis of electronegativities of bonded atoms in the crystallographic frame. Min-Jung Kim from Hanyang University, Korea, reports on the preparation and characterization of carboxyl functionalization of magnetite nanoparticles for oligonucleotide immobilization. F Yan from the National University of Singapore studies the fabrication of Bi(Fe0.5Sc0.5)O3-PbTiO3 (BSF-PT) thin films by pulsed laser deposition, and the enhanced magnetic moment with respect to BiFeO3-PbTiO3. Dong-Gil Lee from Pusan National University, Korea, reports on the sterilization of enteropathogenic Escherichia coli using nanofiber TiO2 films prepared by the electrostatic spray method. Sang-Eun Park from the Korea Institute of Science and Technology reports on the study of encapsulated Fe3O4 nanoparticles with a silica thin layer with a reversible capacity of about 363 mAhg-1. Other researchers report on many other exiting achievements in the fields of ferromagnetic materials, magneto-optical materials, thermoelectric materials, shape memory materials, fuel-cell and battery materials, and other related advanced functional materials. The 4th International Symposium on Functional Materials 2011 (ISFM 2011) will be held in Sendai, Japan, from 2-6 August 2011 just before the Sendai Tanabata Festival. Its preconference (AFM 2011) will be held at Jeju Island, Korea, just before ISFM 2011. We look forward to meeting you in Jeju and Sendai.

  3. PREFACE: 3rd International Conference of Mechanical Engineering Research (ICMER 2015)

    NASA Astrophysics Data System (ADS)

    Mamat, Riazalman; Rahman, Mustafizur; Mohd. Zuki Nik Mohamed, Nik; Che Ghani, Saiful Anwar; Harun, Wan Sharuzi Wan

    2015-12-01

    The 3rd ICMER2015 is the continuity of the NCMER2010. The year 2010 represents a significant milestone in the history for Faculty of Mechanical Engineering, Universiti Malaysia Pahang (UMP) Malaysia with the organization of the first and second national level conferences (1st and 2nd NCMER) at UMP on May 26-27 and Dec 3-4 2010. The Faculty then changed the name from National Conference on Mechanical Engineering Research (NCMER) to International Conference on Mechanical Engineering Research (ICMER) in 2011 and this year, 2015 is our 3rd ICMER. These proceedings contain the selected scientific manuscripts submitted to the conference. It is with great pleasure to welcome you to the "International Conference on Mechanical Engineering Research (ICMER2015)" that is held at Zenith Hotel, Kuantan, Malaysia. The call for papers attracted submissions of over two hundred abstracts from twelve different countries including Japan, Iran, China, Kuwait, Indonesia, Norway, Philippines, Morocco, Germany, UAE and more. The scientific papers published in these proceedings have been revised and approved by the technical committee of the 3rd ICMER2015. All of the papers exhibit clear, concise, and precise expositions that appeal to a broad international readership interested in mechanical engineering, combustion, metallurgy, materials science as well as in manufacturing and biomechanics. The reports present original ideas or results of general significance supported by clear reasoning and compelling evidence, and employ methods, theories and practices relevant to the research. The authors clearly state the questions and the significance of their research to theory and practice, describe how the research contributes to new knowledge, and provide tables and figures that meaningfully add to the narrative. In this edition of ICMER representatives attending are from academia, industry, governmental and private sectors. The plenary and invited speakers will present, discuss, promote and disseminate research in all fields of mechanical engineering. Topics cover synthesis, applications, and fundamental studies of the topics related to mechanical engineering. In addition, booths for industries to showcase their state-of-the-art products are also provided. The organizing committee of the conference thanks all the participants for their fruitful work and personal contribution to the development of these conference proceedings.

  4. Detecting computer-enhanced dentistry.

    PubMed

    Neiburger, E J; Frandzel, Yehonatan L

    2008-01-01

    Recent developments in digital imaging in dentistry and easy-to-use editing software present many occasions for altering or fraudulently changing digital images of products, patients, their dental conditions, treatments, and radiographs. Though seemingly impossible to detect when carefully done, there are numerous clues of digital editing that can be detected by the alert practitioner. PMID:18705212

  5. The Future of Clinical Dentistry.

    ERIC Educational Resources Information Center

    Slavkin, Harold C.

    1998-01-01

    Discussion of the future of clinical dentistry looks at a variety of influences, including historical development factors; demographic trends; the role of the Human Genome Project in the development of scientific knowledge; a paradigm shift in approaches to oral infection and systemic disease; advancing technology; and reforms resulting from these

  6. Dentistry and Dental Hygiene Handbook.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Office of the Professions.

    The handbook contains laws, rules, and regulations of the New York State Education Department that govern dentistry and dental hygiene practice in the state. It describes licensure requirements and includes complete application forms and instructions for obtaining license and first registration as a dentist and dental hygienist. Applicants are…

  7. The Future of Clinical Dentistry.

    ERIC Educational Resources Information Center

    Slavkin, Harold C.

    1998-01-01

    Discussion of the future of clinical dentistry looks at a variety of influences, including historical development factors; demographic trends; the role of the Human Genome Project in the development of scientific knowledge; a paradigm shift in approaches to oral infection and systemic disease; advancing technology; and reforms resulting from these…

  8. Passive solar progress: a simplified guide to the 3rd national passive solar conference

    SciTech Connect

    Miller, H.; Howell, Y.; Richards, D.

    1980-10-01

    Some of the concepts and practices that have come to be known as passive solar heating and cooling are introduced, and a current picture of the field is presented. Much of the material presented is derived from papers given at the 3rd National Passive Solar Conference held in San Jose, California in January 1979 and sponsored by the US Department of Energy. Extracts and data from these papers have been integrated in the text with explanatory and descriptive material. In this way, it is attempted to present technical information in an introductory context. Topics include design considerations, passive and hybrid systems and applications, sizing methods and performance prediction, and implementation issues. A glossary is included. (WHK)

  9. John D. Rockefeller 3rd, statesman and founder of the Population Council.

    PubMed

    Dunlop, J

    2000-01-01

    This article presents a profile of John D. Rockefeller 3rd, statesman and founder of the Population Council. It is noted that Rockefeller took a broad view of population control as a means to address poverty and economic development rather than as an end in itself. In 1952 he initiated the convocation of the Conference on Population Problems held in Williamsburg, Virginia. The discussion focused on food supply, industrial development, depletion of natural resources, and political instability resulting from unchecked population growth. In 1967, Rockefeller initiated, lobbied for, and finally achieved a World Leaders' Statement signed by 30 heads of state including US President Lyndon Johnson. The document drew attention to population growth as a world problem and engendered political support for family planning as a solution. After 3 years the Commission on Population Growth and the American Future was established, and Rockefeller was made its chairman. Several issues were debated, including more safer fertility control and the legalization of abortion. PMID:12349764

  10. Information Systems in Dentistry

    PubMed Central

    Masic, Fedja

    2012-01-01

    Introduction: Almost the entire human creativity today, from the standpoint of its efficiency and expediency, is conditioned with the existence of information systems. Most information systems are oriented to the management and decision-making, including health information system. System of health and health insurance together form one of the most important segments of society and its functioning as a compact unit. Increasing requirements for reducing health care costs while preserving or improving the quality of services provided represent a difficult task for the health system. Material and methods: Using descriptive metods by retreiiving literature we analyzed the latest solutions in information and telecommunications technology is the basis for building an effective and efficient health system. Computerization does not have the primary objective of saving, but the rationalization of spending in health care. It is estimated that at least 20-30% of money spent in health care can be rationally utilized. Computerization should give the necessary data and indicators for this rationalization. Very important are the goals of this project and the achievement of other uses and benefits, improving overall care for patients and policyholders, increasing the speed and accuracy of diagnosis in determining treatment using electronic diagnostic and therapeutic guidelines. Results and discussion: Computerization in dentistry began similarly as in other human activities–recording large amounts of data on digital media, and by replacing manual data processing to machine one. But specifics of the dental profession have led to the specifics of the application of information technology (IT), and continue to require special development of dental oriented and applied IT. Harmonization of dental software with global standards will enable doctors and dentists to with a few mouse clicks via the internet reach the general medical information about their patients from the central national health database. Standardization will also allow access to general medical and dental history data on citizens of foreign countries who seek help of doctors or dentists during their vacation. Such a method of using IT will provide a higher level of health services and better health care. Also, the identification procedures in mass disasters availability of data can contribute to accelerate the identification of victims.Dental information systems lately are based on Web applications to facilitate data exchange. Electronic patient record contains basic information and entering of this data is automatically created the protocol of patients that can be printed.Besides these general data Electronic patient record also contains history data related to allergies and other diseases which existence can significantly affect the treatment, data on current diagnosis, location of a pathological process in the tooth refers to the following location (mesial, distal, vestibular, oral, occlusal), teething, therapy of the tooth , type of material used with location on the tooth. The system may defined also the surgical procedures that were performed on the teeth such as tooth extraction or tooth root resection with the ability to accurately indicate that the root is resected. Implants, upgrades, grinding teeth, and independent crown can be defined for each tooth and its rightful place if a tooth is missing. Specially designed graphical representation of teeth enables to enter data by first clicking on the tooth or place where it is and also on that occasion to open a menu with options. Control of data entry prevents entry of illogical data. Conclusion: The system according to the HL7 standard represents electronic documents which eliminate the need for paper documents and a variety of daily and monthly reports of doctors who are still in use today, and the doctor and nurse are almost completely freed of administrative tasks. PMID:23322955

  11. Collaboration Between Dietetics and Dentistry: Dietetic Internship in Pediatric Dentistry.

    PubMed

    More, Frederick G; Sasson, Lisa M; Godfrey, Emilie M; Sehl, Rima B

    2005-01-01

    The American Dietetic Association and the American Dental Association share a common interest in improving the health and quality of life of the population. Dental visits present an opportunity to identify nutrition-related issues for both the pediatric and adult population. Traditionally, dental and nutrition students have had little opportunity to learn and work together since little time was spent on nutrition in the dental curriculum. The purpose of this article is to describe the development of a new collaborative training experience for dietetic interns and pediatric dentistry residents. The oral health rotation for dietetic interns also has several objectives, including experience interacting with a culturally diverse population and participating in community nutrition education (Head Start). In its first 18 months, the collaborative program has been viewed as a success by the pediatric dentistry faculty and residents and the nutrition faculty and interns. PMID:16639470

  12. TEC obtained from 3rd Stokes parameter for improved quality of SMOS salinity retrieval

    NASA Astrophysics Data System (ADS)

    Vergely, Jean-Luc; Waldteufel, Philippe; Boutin, Jacqueline; Yin, Xiaobin; Spurgeon, Paul

    2014-05-01

    While SMOS was designed with full polarimetric capability, the 3rd Stokes parameter information has not been introduced so far in the data processing. The analysis reported in the present contribution proposes to estimate from this information the total ionospheric electron content (TEC). Indeed the Faraday effect generated by the ionospheric electrons on the path from Earth to satellite is believed to be responsible for large uncertainties in the evening half-orbits (circa 06 PM local time) when the ionospheric content is close to its diurnal maximum. It is shown that the 3rd Stokes parameter exhibits a maximal sensitivity to TEC in a restricted area located at the front of the SMOS 2D field of view. However, since the Faraday angle depends on the scalar product between line-of-sight and magnetic field vectors, a latitudinal zone is found where this sensitivity vanishes. This zone occurs around 15° N a latitude nearly invariant with longitude around the Earth. Accordingly it is possible, when carrying out the TEC estimation over a descending half-orbit, to isolate over this "blind zone" the so-called "Ocean Target Transformation" parameter, which aims at correcting for pixel dependent biases. TEC maps obtained in this way compare favorably with maps built from GPS measurements, which have been introduced so far in the SMOS processing chain as auxiliary data. The space resolution is somewhat improved, allowing a better selection of the relevant electron content in zones exhibiting large horizontal TEC gradients. In a latter step, based on the TEC maps, it becomes possible to recompute the OTT correction for those brightness temperature components to be used as input in the salinity retrieval. Then the additional information impacts the salinity retrieval both directly (as the quality of the TEC auxiliary data is improved) and indirectly (as the empirical OTT correction is no longer contaminated by spurious Faraday rotation effects). The respective contributions of both effects will be assessed and discussed. They result on the whole in a significant improvement of the SMOS retrieved salinity; this is evidenced by a large reduction of a spurious latitudinal variation which was so far considered as a bias originating in instrumental effects.

  13. History of resins in dentistry.

    PubMed

    Peyton, F A

    1975-04-01

    The period of 175 years from 1800 to 1975 represents one of significant advancement in prosthetic and restorative dental service. The transition from the time of ill-fitting dentures, fashioned from naturally occurring materials, to the application of synthetic resins for a long list of dental and surgical purposes described in this symposium represents a typical example of technical and professional advancement that has taken place throughout the world society during this same period. As noted in the beginning of this report, the advancement in dentistry has been possible through the cooperative efforts of contemporary scientists in many related fields. If denistry retains this good working relationship, as it is expected to do, then the advancements within the next two generations can significantly change and improve the practice of dentistry from what is presently known, by the application of additional new and modified dental resins. PMID:1090459

  14. Biomaterials in Relation to Dentistry.

    PubMed

    Deb, Sanjukta; Chana, Simran

    2015-01-01

    Dental caries remains a challenge in the improvement of oral health. It is the most common and widespread biofilm-dependent oral disease, resulting in the destruction of tooth structure by the acidic attack from cariogenic bacteria. The tooth is a heavily mineralised tissue, and both enamel and dentine can undergo demineralisation due to trauma or dietary conditions. The adult population worldwide affected by dental caries is enormous and despite significant advances in caries prevention and tooth restoration, treatments continue to pose a substantial burden to healthcare. Biomaterials play a vital role in the restoration of the diseased or damaged tooth structure and, despite providing reasonable outcomes, there are some concerns with clinical performance. Amalgam, the silver grey biomaterial that has been widely used as a restorative material in dentistry, is currently in throes of being phased out, especially with the Minimata convention and treaty being signed by a number of countries (January 2013; http://mercuryconvention.org/Convention/) that aims to control the anthropogenic release of mercury in the environment, which naturally impacts the use of amalgam, where mercury is a component. Thus, the development of alternative restoratives and restoration methods that are inexpensive, can be used under different climatic conditions, withstand storage and allow easy handling, the main prerequisites of dental biomaterials, is important. The potential for using biologically engineered tissue and consequent research to replace damaged tissues has also seen a quantum leap in the last decade. Ongoing research in regenerative treatments in dentistry includes alveolar ridge augmentation, bone tissue engineering and periodontal ligament replacement, and a future aim is bioengineering of the whole tooth. Research towards developing bioengineered teeth is well underway and identification of adult stem cell sources to make this a viable treatment is advancing; however, this topic is not in the scope of this chapter. Whilst research focuses on many different aspects, operative dentistry involves the wide use of restorative biomaterials; thus, the development of smart biomaterials to suit the current climes of minimally invasive dentistry is important. The concept of minimally invasive dentistry primarily promotes preservation of the natural tissue, and, thus, the prevention of disease or the advancement of procedures that allow early detection and interception of its progress with minimal tissue loss are of significance. This chapter presents, in brief, the current state of the art of direct restorative biomaterials and their role and future in the field of dentistry. Modern dental practice is highly reliant on the selection of appropriate materials for optimum function and benefit to the patient. Dentistry, perhaps, has the unique distinction of using the widest variety of materials, ranging from polymers, metals, ceramics, inorganic salts to composite materials. So far, aesthetics of restorative materials and their ability to perform in the harsh oral environment without undergoing changes in dimension and stability has been the major focus of materials used in dentistry. Despite advances in tissue engineering and regeneration in the field of regenerative medicine, this concept has found relatively limited application for enamel and dentine due to their limited ability to remodel, but research related to biomimetic approaches for the modification of dentine is a significant step. PMID:26201271

  15. Lasers in medicine and dentistry.

    PubMed

    Lehnert, M W

    1996-01-01

    Since their introduction, great enthusiasm has greeted the application of lasers to medicine and dentistry. The future is exciting. Research will someday take us to the days of the "Star Trek" laser-scan tooth or bone repair procedures. Lasers are very specific in their application. Choose this new technology carefully, making choices and purchases based on quality scientific research and ongoing analysis and review. PMID:9487874

  16. Potent Inhalational Anesthetics for Dentistry.

    PubMed

    Satuito, Mary; Tom, James

    2016-01-01

    Nitrous oxide and the volatile inhalational anesthetics have defined anxiety and pain control in both dentistry and medicine for over a century. From curious experimentation to spectacular public demonstrations, the initial work of 2 dentists, Horace Wells and William T. G. Morton, persists to this day in modern surgery and anesthesia. This article reviews the history, similarities, differences, and clinical applications of the most popular inhalational agents used in contemporary dental surgical settings. PMID:26866411

  17. Hirudotherapy in Medicine and Dentistry

    PubMed Central

    Garg, Aarti; Narang, Ridhi; Das, Sunanda

    2015-01-01

    The concept of Unani medicine is based on balancing body humours, the imbalance of which causes diseases. The application of leech therapy in medical and dental science is well recognized. Although easy and non-invasive, complications also exist. The article aims to presents a brief review on the applications of leech therapy. The physiological effect, along with its therapeutic role in cancer, diabetes and dentistry have been underlined. Complications of leech therapy have also been dealt with. PMID:26817000

  18. Report from the 3rd AIDS Impact Conference: culture, community, empowerment.

    PubMed

    Aggleton, P

    1997-10-01

    Presentations made at the 3rd AIDS Impact Conferences in June 1997 in Melbourne, Australia are summarized. The presentations focused on the importance of local beliefs, practices, and sexual cultures as factors that impact HIV risk. The three dominant themes of this conference were a concern for community, an emphasis on culture, and empowerment for the most vulnerable groups. Speakers illustrated the importance of culture as a factor in the form, context, and meaning of sex among young men and women in Thailand, Australia, Italy, Cambodia, and the United States. Studies conducted in correctional facilities illustrate how the culture of sex and substance use can intensify the HIV risk. Papers examined the sexual revolution in China and the experiences of indigenous people in Brazil, Australia, and New Zealand. The presentations also highlighted drug use cultures among gay men in Australian and German cities and introduced new research methodologies for the analysis of these processes and issues. The closing presentation considered the politics of HIV and their relationship to national and international processes of negative societal responses to HIV diseases. PMID:11364796

  19. SESAME, A 3rd Generation Synchrotron Light Source for the Middle East

    NASA Astrophysics Data System (ADS)

    Einfeld, D.; Hasnain, S. S.; Sayers, Z.; Schopper, H.; Winick, H.; Al-Dmour, E.

    2004-05-01

    Developed under the auspices of UNESCO, SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be a major international research centre in the Middle East and Mediterranean region. On 6th of January 2003, the official foundation of SESAME took place. The facility is located in Allan, Jordan, 30 km North-West of Amman. As of August 2003 the Founding Members are Bahrain, Egypt, Iran, Israel, Jordan, Pakistan, Palestine, Turkey and United Arabic Emirates, representing a population of over 300 million. SESAME will be a 2.5 GeV 3rd Generation light source (emittance 24.6 nm.rad, circumference ˜125m). About 40% of the circumference is available for insertion devices (average length 2.75m) in 13 straight sections. Beam lines are up to 36m. The site and a building are provided by Jordan. Construction started in August 2003. The scientific program will start with up to 6 beam lines: MAD Protein Crystallography, SAXS and WAXS for polymers and proteins, Powder Diffraction for material science, UV/VUV/SXR Photoelectron Spectroscopy and Photoabsorption Spectroscopy, IR Spectroscopy, and EXAFS.

  20. SESAME, A 3rd Generation Synchrotron Light Source for the Middle East

    SciTech Connect

    Einfeld, D.; Hasnain, S.S.; Sayers, Z.; Schopper, H.; Winick, H.; Al-Dmour, E.

    2004-05-12

    Developed under the auspices of UNESCO, SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be a major international research centre in the Middle East and Mediterranean region. On 6th of January 2003, the official foundation of SESAME took place. The facility is located in Allan, Jordan, 30 km North-West of Amman. As of August 2003 the Founding Members are Bahrain, Egypt, Iran, Israel, Jordan, Pakistan, Palestine, Turkey and United Arabic Emirates, representing a population of over 300 million. SESAME will be a 2.5 GeV 3rd Generation light source (emittance 24.6 nm.rad, circumference {approx}125m). About 40% of the circumference is available for insertion devices (average length 2.75m) in 13 straight sections. Beam lines are up to 36m. The site and a building are provided by Jordan. Construction started in August 2003. The scientific program will start with up to 6 beam lines: MAD Protein Crystallography, SAXS and WAXS for polymers and proteins, Powder Diffraction for material science, UV/VUV/SXR Photoelectron Spectroscopy and Photoabsorption Spectroscopy, IR Spectroscopy, and EXAFS.

  1. Effects of notetaking instruction on 3rd grade student's science learning and notetaking behavior

    NASA Astrophysics Data System (ADS)

    Lee, Pai-Lin

    The research examined effects of notetaking instruction on elementary-aged students' ability to recall science information and notetaking behavior. Classes of 3rd grade students were randomly assigned to three treatment conditions, strategic notetaking, partial strategic notetaking, and control, for 4 training sessions. The effects of the notetaking instruction were measured by their performances on a test on science information taught during the training, a long-term free recall of the information, and number of information units recalled with or without cues. Students' prior science achievement was used to group students into two levels (high vs. low) and functioned as another independent variable in analysis. Results indicated significant treatment effect on cued and non-cued recall of the information units in favor of the strategy instruction groups. Students with higher prior achievement in science performed better on cued recall and long-term free recall of information. The results suggest that students as young as at the third grade can be instructed to develop the ability of notetaking that promotes their learning.

  2. The 3^rd International Conference on Women in Physics: Global Perspectives, Common Concerns, Worldwide Views

    NASA Astrophysics Data System (ADS)

    Zastavker, Yevgeniya V.

    2009-03-01

    The 3^rd International Conference on Women in Physics (ICWIP), held in Seoul, Korea, in October 2008, brought together 300 participants from 57 countries, including a diverse 22-member U.S. Delegation, for a 3-day summit of stimulating discussions, thought-provoking presentations, inspirational posters, and networking. Held under the auspices of the Working Group on Women in Physics of the International Union of Pure and Applied Physics (IUPAP), this meeting built on the successes of the 1^st (Paris, 2002) and 2^nd (Rio de Janeiro, 2005) Conferences and further clarified the importance of diversifying the field of physics worldwide. Although considerable progress has been made since 2002, it was clear that the global scientific workforce is still under-utilizing a large percentage of the available female talent pool. If human society is to benefit to its fullest from various contributions that the field of physics can offer in addressing global issues of economic crisis, energy, environment, water, health, poverty, and hunger, women of all races and nationalities need to become fully included and engaged in the national and international physical community. To address these and many other issues, the ICWIP unanimously approved a five-part resolution to IUPAP recommending actions to promote the recruitment, retention, and advancement of women in physics and related fields.

  3. PREFACE: 3rd International Conference on Manufacturing, Optimization, Industrial and Material Engineering (MOIME 2015)

    NASA Astrophysics Data System (ADS)

    Lumban Gaol, Ford; Webb, Jeff; Ding, Jun

    2015-05-01

    The 3rd International Conference on Manufacturing, Optimization, Industrial and Material Engineering (MOIME 2015) was held at the Sheraton Kuta, Bali, Indonesia, from 28 - 29 March 2015. The MOIME 2015 conference is aimed to bring together researchers, engineers and scientists in the domain of interest from around the world. MOIME 2015 is placed on promoting interaction between the theoretical, experimental, and applied communities, so that a high level exchange is achieved in new and emerging areas within Material Engineering, Industrial Engineering and all areas that relate to Optimization. We would like to express our sincere gratitude to all in the Technical Program Committee who have reviewed the papers and developed a very interesting Conference Program, as well as the invited and plenary speakers. This year, we received 99 papers and after rigorous review, 24 papers were accepted. The participants come from eight countries. There were four parallel sessions and two invited speakers. It is an honour to present this volume of IOP Conference Series: Materials Science and Engineering (MSE) and we deeply thank the authors for their enthusiastic and high-grade contributions. Finally, we would like to thank the conference chairmen, the members of the steering committee, the organizing committee, the organizing secretariat and the financial support from the conference sponsors that allowed the success of MOIME 2015. The Editors of the MOIME 2015 Proceedings Dr. Ford Lumban Gaol Jeff Webb, Ph.D Prof. Jun DING, Ph.D

  4. Emerging roles of secreted phospholipase A2 enzymes: the 3rd edition.

    PubMed

    Murakami, Makoto; Taketomi, Yoshitaka; Miki, Yoshimi; Sato, Hiroyasu; Yamamoto, Kei; Lambeau, Gérard

    2014-12-01

    Within the phospholipase A2 (PLA2) superfamily, secreted PLA2 (sPLA2) enzymes comprise the largest family that contains 11 to 12 mammalian isoforms with a conserved His-Asp catalytic dyad. Individual sPLA2s exhibit unique tissue and cellular localizations and specific enzymatic properties, suggesting distinct biological roles. Individual sPLA2s are involved in diverse biological events through lipid mediator-dependent or -independent processes and act redundantly or non-redundantly in a given microenvironment. In the past few years, new biological aspects of sPLA2s have been clarified using their transgenic and knockout mouse lines in combination with mass spectrometric lipidomics to unveil their target substrates and products in vivo. In the 3rd edition of this review series, we highlight the newest understanding of the in vivo functions of sPLA2s in pathophysiological conditions in the context of immunity and metabolism. We will also describe the latest knowledge on PLA2R1, the best known sPLA2 receptor, which may serve either as a clearance or signaling receptor for sPLA2 or may even act independently of sPLA2 function. PMID:25230085

  5. Exploiting stem cell therapy: the 3rd meeting of stem cell research Italy.

    PubMed

    Di Bernardo, Giovanni; Piva, Roberta; Giordano, Antonio; Galderisi, Umberto

    2013-04-01

    The study of stem cells is one of the most exciting areas of contemporary biomedical research. During the 3rd Joint Meeting of Stem Cell Research Italy (June 2012, Ferrara, Italy), scientists from different multidisciplinary areas explored new frontiers of basic and applied stem cell research with key lectures and oral presentations. There was a public debate on ethics during the opening ceremony, specifically on the limits and potentialities of adult and embryonic stem cells. Some scientists presented basic research data showing evolutionary aspects, which could be of interest in understanding specific biological phenomena. Others focused on "dangerous liaisons" between gene transfer vectors and the human genome. Some speakers provided insight into current stem cell therapies, such as those involving human epithelial stem cells for treatment of skin diseases. Other researchers presented data on close-to-therapy findings, such as the use of mesenchymal stem cells in brain repair. Of note, during the meeting, spotlights were focused on major issues that have to be considered for GMP stem cell production for cell therapy. In "Meet the Expert" sessions, specialists presented innovative technologies such as a next-generation sequencing system. Finally, the meeting provided an excellent opportunity for young scientists to show their findings, and to discuss with each other and with internationally recognized experts. PMID:22927167

  6. Albion: cost-effective 3rd generation high-performance thermal imaging in the UK

    NASA Astrophysics Data System (ADS)

    McEwen, R. K.; Lupton, M.; Lawrence, M.; Knowles, P.; Wilson, M.; Dennis, P. N. J.; Gordon, N. T.; Lees, D. J.; Parsons, J. F.

    2006-09-01

    The first generation of high performance thermal imaging sensors in the UK was based on two axis opto-mechanical scanning systems and small (4-16 element) arrays of the SPRITE detector, developed during the 1970s. Almost two decades later, a 2nd Generation system, STAIRS C was introduced, based on single axis scanning and a long linear array of approximately 3000 elements. This paper addresses the development of the UK's 3rd Generation High Performance Thermal Imaging sensor systems, under a programme known as "Albion". Three new high performance detectors, manufactured in cadmium mercury telluride, operating in both MWIR and LWIR, providing high resolution and sensitivities without need for opto-mechanical scanning systems will be described. The CMT material is grown by MOVPE on low cost substrates and bump bonded to the silicon read out circuit (ROIC). All three detectors are designed to fit with existing standard Integrated Detector Cooling Assemblies (IDCAs). The two largest detectors will be integrated with field demonstrator cameras providing MWIR and LWIR solutions that can rapidly be tailored to specific military requirements. The remaining detector will be a LWIR device with a smart ROIC, facilitating integration times much longer than can typically be achieved with focal plane arrays and consequently yield very high thermal sensitivity. This device will be demonstrated in a lab based camera system.

  7. Albion: the UK 3rd generation high-performance thermal imaging programme

    NASA Astrophysics Data System (ADS)

    McEwen, R. K.; Lupton, M.; Lawrence, M.; Knowles, P.; Wilson, M.; Dennis, P. N. J.; Gordon, N. T.; Lees, D. J.; Parsons, J. F.

    2007-04-01

    The first generation of high performance thermal imaging sensors in the UK was based on two axis opto-mechanical scanning systems and small (4-16 element) arrays of the SPRITE detector, developed during the 1970s. Almost two decades later, a 2nd Generation system, STAIRS C was introduced, based on single axis scanning and a long linear array of approximately 3000 elements. The UK has now begun the industrialisation of 3 rd Generation High Performance Thermal Imaging under a programme known as "Albion". Three new high performance cadmium mercury telluride arrays are being manufactured. The CMT material is grown by MOVPE on low cost substrates and bump bonded to the silicon read out circuit (ROIC). To maintain low production costs, all three detectors are designed to fit with existing standard Integrated Detector Cooling Assemblies (IDCAs). The two largest focal planes are conventional devices operating in the MWIR and LWIR spectral bands. A smaller format LWIR device is also described which has a smart ROIC, enabling much longer stare times than are feasible with conventional pixel circuits, thus achieving very high sensitivity. A new reference surface technology for thermal imaging sensors is described, based on Negative Luminescence (NL), which offers several advantages over conventional peltier references, improving the quality of the Non-Uniformity Correction (NUC) algorithms.

  8. Measuring the cascade rate in anisotropic turbulence through 3rd order structure functions.

    NASA Astrophysics Data System (ADS)

    Verdini, Andrea; Landi, Simone; Hellinger, Petr

    2014-05-01

    We employ the Von-Karman-Howart-Yaglom-Politano-Poquet (KHYPP)law, to compute the cascade rate by means of 3rd order structure functions in homogeneous, forced, DNS at high resolution. We consider first the isotropic case (no guide field) and verify that the cascade rate is consistent with the dissipation rate. Then we consider an anisotropic case (with guide field) for which the isotropic KHYPP law does not apply. We compute the parallel and perpendicular cascade rates and find that the latter basically accounts for the total dissipation rate, as expected for anisotropic turbulence. Also, the cascade rate derived from the isotropic law is found to be a good approximation for the total cascade rate. Recent works have shown that the hypothesis of stationary turbulence must be probably relaxed in the solar wind. We present preliminary results on the measure of the cascade rate in the expanding solar wind, obtained with DNS of MHD turbulence in the expanding box model. Such model incorporates the basic physic of expansion thus inducing anisotropies driven by both the magnetic field and expansion, along with an energy decrease due to the conservation of linear invariants (angular momentum and magnetic flux). The correction due to non-stationary conditions is found to be important and to become negligible only at small scales, thus suggesting that solar wind measurements over- estimate the actual cascade rate.

  9. Resurgence of duckweed research and applications: report from the 3rd International Duckweed Conference.

    PubMed

    Appenroth, Klaus-J; Sree, K Sowjanya; Fakhoorian, Tamra; Lam, Eric

    2015-12-01

    Duckweed, flowering plants in the Lemnaceae family, comprises the smallest angiosperms in the plant kingdom. They have some of the fastest biomass accumulation rates reported to date for plants and have the demonstrated ability to thrive on wastewater rich in dissolved organic compounds and thus could help to remediated polluted water resources and prevents eutrophication. With a high quality genome sequence now available and increased commercial interest worldwide to develop duckweed biomass for renewables such as protein and fuel, the 3rd International Duckweed Conference convened at Kyoto, Japan, in July of 2015, to update the community of duckweed researchers and developers on the progress in the field. In addition to sharing results and ideas, the conference also provided ample opportunities for new-comers as well as established workers in the field to network and create new aliances. We hope this meeting summary will also help to disseminate the key advances and observations that have been presented in this conference to the broader plant biology community in order to encourage increased cross-fertilization of ideas and technologies. PMID:26506824

  10. SESAME-A 3rd Generation Synchrotron Light Source for the Middle East

    NASA Astrophysics Data System (ADS)

    Winick, Herman

    2010-02-01

    Developed under the auspices of UNESCO and modeled on CERN, SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is an international research center in construction in Jordan. It will enable world class research by scientists from the region, reversing the brain drain. It will also build bridges between diverse societies, contributing to a culture of peace through international cooperation in science. The centerpiece is a synchrotron light source originating from BESSY I, a gift by Germany. The upgraded machine, a 2.5 GeV 3rd Generation Light Source (133m circumference, 26nm-rad emittance and 12 places for insertion devices), will provide light from infra-red to hard X-rays, offering excellent opportunities to train local scientists and attract those working abroad to return. The SESAME Council meets twice each year and presently has nine Members (Bahrain, Cyprus, Egypt, Iran, Israel, Jordan, Pakistan, Palestinian Authority, Turkey). Members have responsibility for the project and provide the annual operations budget (1.5M US dollars in 2009, expected to rise to about 5M when operation starts in 2012-13). Jordan provided the site, building, and infrastructure. A staff of 20 is installing the 0.8 GeV BESSY I injection system. The facility will have the capacity to serve 30 or more experiments operating simultaneously. See www.sesame.org.jo )

  11. Visual, Critical, and Scientific Thinking Dispositions in a 3rd Grade Science Classroom

    NASA Astrophysics Data System (ADS)

    Foss, Stacy

    Many American students leave school without the required 21st century critical thinking skills. This qualitative case study, based on the theoretical concepts of Facione, Arheim, and Vygotsky, explored the development of thinking dispositions through the arts in science on the development of scientific thinking skills when used as a conceptual thinking routine in a rural 3rd grade classroom. Research questions examined the disposition to think critically through the arts in science and focused on the perceptions and experiences of 25 students with the Visual Thinking Strategy (VTS) process. Data were collected from classroom observations (n = 10), student interviews (n = 25), teacher interviews ( n = 1), a focus group discussion (n = 3), and artifacts of student work (n = 25); these data included perceptions of VTS, school culture, and classroom characteristics. An inductive analysis of qualitative data resulted in several emergent themes regarding disposition development and students generating questions while increasing affective motivation. The most prevalent dispositions were open-mindedness, the truth-seeking disposition, the analytical disposition, and the systematicity disposition. The findings about the teachers indicated that VTS questions in science supported "gradual release of responsibility", the internalization of process skills and vocabulary, and argumentation. This case study offers descriptive research that links visual arts inquiry and the development of critical thinking dispositions in science at the elementary level. A science curriculum could be developed, that emphasizes the development of thinking dispositions through the arts in science, which in turn, could impact the professional development of teachers and learning outcomes for students.

  12. How visible light curing came into dentistry.

    PubMed

    Wilson, N H F

    2016-01-01

    The present paper details the history of the introduction of visible light curing into dentistry. This history provides an excellent example of 'out of the box', lateral thinking translation of innovative scientific technology into dentistry. Visible light curing is an important UK contribution to the recent history and current practice of dentistry, with several million visible light curing procedures being carried out globally on a daily basis. PMID:26930883

  13. Evidence of human-induced morphodynamic changes along the Campania coastal areas (southern Italy) since the 3rd-4th cent. AD

    NASA Astrophysics Data System (ADS)

    Russo Ermolli, Elda; Romano, Paola; Liuzza, Viviana; Amato, Vincenzo; Ruello, Maria Rosaria; Di Donato, Valentino

    2014-05-01

    Campania has always offered suitable climatic and physiographic conditions for human settlements since prehistoric times. In particular, many Graeco-Roman towns developed along its coasts starting from the 7th-6th cent. BC. In the last decade, geoarchaelogical surveys have been carried out in the archaeological excavations of Neapolis, Paestum and Elea-Velia allowing the main steps of the landscape evolution around these towns to be defined in detail. The greek town of Neapolis rose in the late 6th cent. BC [1] on a terrace overlooking a low-relief rocky coast surrounded by volcanic hills. Port activities developed in a protected bay facing the town from the 4th-2nd cent. BC up to the 4th cent. AD, as testified by the discovery of structures and shipwrecks [2, 3, 4]. Starting from the 3rd cent. AD a spit bar formed at the bay entrance causing the progressive establishment of a lagoon which was gradually filled up by alluvial inputs and completely closed in the 5th cent. AD. During the same period, episodes of increased alluvial inputs were also recorded further west along the coast, where a narrow sandy beach formed at the cliff toe. The greek town of Poseidonia, renamed Paestum by the Romans, was founded in the 540 BC on a travertine terrace facing the sandy littoral of a prograding coastal plain [5]. In front of the main town door, a coastal lagoon developed thanks to the growth of a dune ridge and was probably used for harbor activities [5]. After this period the shoreline shifted seawards, another dune ridge formed and the back-ridge depression was filled with fluvial-marshy deposits, slowly drying up. Phases of travertine deposition, which characterized the SE sector of the plain all along the Holocene, were recorded in the northern and southern quarters of the town in historical times and were connected to the abandonment of the town in the early Medieval times. The greek colony of Elea-Velia was located on top of a siliciclastic promontory where the ruins of the first archaic settlement (late 6th cent. BC) was unearthed. The Graeco-Roman town expanded downhill, exploiting the growth of a coastal plain, where occasional phases of flooding coexisted with the life of the citizens [6]. The onset of the 3rd cent. AD was characterized by phases of extreme floods which also occurred during the 4th and 5th cent. AD leading to several meters of ground-level aggradation and the burial of buildings [6, 7]. Although the three investigated sites are located in rather different morphological context, they show the evidence of a disequilibrium in the morphodynamics which started in the 3rd-4th cent. AD. The vast amount of collected data strongly suggest that this disequilibrium is a clear sign of a socio-economic decline which affected the Roman Empire during this period rather than the consequence of a climatic deterioration towards dryer conditions, for which no detailed data are available in the Mediterranean area [8]. The abandonment of the towns and their surroundings triggered increased soil erosion on the slopes suffering deforestation and in the farmlands for reduced maintenance, enhancing accumulation rates at the foothills and along coastal areas. References [1] D'Agostino, B., Giampaola, D., 2005. Osservazioni storiche e archeologiche sulla fondazione di Neapolis, in: Harris, W.V., Lo Cascio, E. (Eds.), Noctes Campanae, studi di storia antica e archeologia dell'Italia pre-romana e romana in memoria di Martin W. Frederiksen, Napoli, 63-72. [2] Giampaola, D., Carsana, V., Boetto, G., Bartolini, M., Capretti, C., Galotta, G., Giachi, G., Macchioni, N., Nugari, M. P., Pizzo, B., 2006. La scoperta del porto di Neapolis: dalla ricostruzione topografica allo scavo e al recupero dei relitti. Arch. Mar. Medit., Int. J. Underwat. Arch. 2, 47-91, Ist. Ed. Poligr.Int. MMVI, Pisa - Roma. [3] Allevato, E., Russo Ermolli, E., Boetto, G., Di Pasquale, G., 2010. Pollen-wood analysis at the Neapolis harbour site (1st-3rd century AD, southern Italy) and its archaeobotanical implications. J. Archaeol. Sci. 37, 2365-2375. [4] Russo Ermolli E., Romano P., Ruello M.R., Barone Lumaga M.R, in press. The natural and cultural landscape of Naples (southern Italy) during the Graeco-Roman and Late Antique periods. J. Archaeol. Sci. [5] Amato, V., Aucelli, P.,D'Argenio, B., Da Prato, S., Ferraro, L., Pappone, G., Petrosino, P., Rosskopf, C.M., Russo Ermolli, E., 2012. Holocene environmental evolution of the coastal sector before the Poseidonia-Paestum archaeological area (Sele plain, southern Italy). Rend. Fis. Acc. Lincei. doi:10.1007/s12210-011-0161-1 [6] Amato V., Bisogno G., Cicala L., Cinque A., Romano P., Ruello MR., Russo Ermolli E., 2010. Palaeo-environmental changes in the archaeological settlement of Elea-Velia: climatic and/or human impact signatures? In Ciarallo A., Senatore M.R. (2010) Scienze naturali ed archeologia. Il paesaggio antico: interazione uomo/ambiente ed eventi catastrofici. Aracne Editrice, Roma, pag 13-16. ISBN 978-88-548-3525-2 [7] Russo Ermolli E., Romano P., Ruello M.R., 2013. Human-environment interactions in the southern Tyrrhenian coastal area: hypothesis from Neapolis and Elea-Velia. In: Harris W.V. (Ed.) The ancient Mediterranean environment between science and history Columbia Studies in the Classical Tradition 39, BRILL Leiden-Boston, ISBN 978-90-04-25343-8, pp. 213-232. [8] Büntgen, U., Tegel, W., Nicolussi, K., McCormick, M., Frank, D., Trouet, V., Kaplan, J.O., Herzig, F., Heussner, K-U., Wanner, H., Luterbacher, J., Esper, J., 2011. 2500 Years of European Climate Variability and Human Susceptibility. Science 331, 578-582.

  14. Botox Therapy in Dentistry: A Review

    PubMed Central

    Azam, Aftab; Manchanda, Sunny; Thotapalli, Suman; Kotha, Sunil Babu

    2015-01-01

    There are many medical and dental conditions which do not have complete treatment modalities in conventional ways. The botulinum toxin can be used as an alternative treatment modality working through chemo denervation method in many medical and dental conditions. An internet research was done for botulinum toxin used in dentistry and all articles and studies were selected, articles related to dentistry were extracted and summarized. This article explains the basic of botulinum toxin and some of its uses in dentistry. In next parts, the extensive details of its use in dentistry will be dealt with. PMID:26668495

  15. The Power of PreK-3rd: How a Small Foundation Helped Push Washington State to the Forefront of the PreK-3rd Movement. FCD Case Study

    ERIC Educational Resources Information Center

    Nyhan, Paul

    2011-01-01

    The New School Foundation was not born from a commission, legislative mandate, research project, think tank, or even the mind of a leading education scholar. One of Washington state's pioneering PreK-3rd initiatives began as the brainchild of a wealthy Seattle businessman, Stuart Sloan, 20 years ago. The New School Foundation and its ideas were…

  16. The dawn of dentistry: dentistry among the Etruscans.

    PubMed

    Loevy, H T; Kowitz, A A

    1997-10-01

    The Etruscans were a group of agricultural people who evolved into an urban population of craftsmen, traders, and navigators who lived in a network of cities and dominated the area of the Mediterranean around Italy in the 8th and 9th centuries BC. What has come to be known, and is of importance in our study of the history of dentistry are a significant number of very interesting works of art which include gold dental prostheses. The Etruscan prostheses are remarkable because they used gold bands which were soldered into rings instead of the gold wires which are seen in other cultures (Egyptians, Phoenicians) of the same time. PMID:9448810

  17. 3rd-generation MW/LWIR sensor engine for advanced tactical systems

    NASA Astrophysics Data System (ADS)

    King, Donald F.; Graham, Jason S.; Kennedy, Adam M.; Mullins, Richard N.; McQuitty, Jeffrey C.; Radford, William A.; Kostrzewa, Thomas J.; Patten, Elizabeth A.; McEwan, Thomas F.; Vodicka, James G.; Wootan, John J.

    2008-04-01

    Raytheon has developed a 3rd-Generation FLIR Sensor Engine (3GFSE) for advanced U.S. Army systems. The sensor engine is based around a compact, productized detector-dewar assembly incorporating a 640 x 480 staring dual-band (MW/LWIR) focal plane array (FPA) and a dual-aperture coldshield mechanism. The capability to switch the coldshield aperture and operate at either of two widely-varying f/#s will enable future multi-mode tactical systems to more fully exploit the many operational advantages offered by dual-band FPAs. RVS has previously demonstrated high-performance dual-band MW/LWIR FPAs in 640 x 480 and 1280 x 720 formats with 20 μm pitch. The 3GFSE includes compact electronics that operate the dual-band FPA and variable-aperture mechanism, and perform 14-bit analog-to-digital conversion of the FPA output video. Digital signal processing electronics perform "fixed" two-point non-uniformity correction (NUC) of the video from both bands and optional dynamic scene-based NUC; advanced enhancement processing of the output video is also supported. The dewar-electronics assembly measures approximately 4.75 x 2.25 x 1.75 inches. A compact, high-performance linear cooler and cooler electronics module provide the necessary FPA cooling over a military environmental temperature range. 3GFSE units are currently being assembled and integrated at RVS, with the first units planned for delivery to the US Army.

  18. PREFACE: 3rd International Youth Conference "Interdisciplinary Problems of Nanotechnology, Biomedicine and Nanotoxicology" (Nanobiotech 2015)

    NASA Astrophysics Data System (ADS)

    Refsnes, Magne, Prof; Gusev, Alexander, Dr; Godymchuk, Anna, Dr; Bogdan, Anna

    2015-11-01

    The 3rd International Youth Conference "Interdisciplinary Problems of Nanotechnology, Biomedicine and Nanotoxicology" (Nanobiotech2015) was held on 21-22 May 2015 in Tambov, Russia, and was jointly organized by Tambov Derzhavin State University (Russia), the Norwegian Institute of Public Health (Norway), the National University of Science and Technology MISiS (Russia), Tomsk Polytechnic University (Russia) and Tomsk State University. The conference gathered experienced and young researchers, post-docs and students, working in the fieldof nanotechnologies, nanomedicine, nano(eco)toxicology and risk assessment of nanomaterials, in order to facilitate the aggregation and sharing of interests and results for better collaboration and visibility of activity. The goal of Nanobiotech2015 was to bring researchers and practitioners together to share the latest knowledge on nanotechnology-specific risks to occupational and environmental health and assessing how to reduce these potential risks. The main objective of the conference is to identify, systematize and solve current scientific problems inthe sphere of nanobiotechnologies, nanomedicine and nanotoxicology, in order to join forces todetermine prospective areas and compose working groups of interested co-workers for carrying out interdisciplinary research projects. The topics of Nanobiotech2015 were: (1) Nanotechnologies in pharmaceutics and medicine; (2) Sources and mechanisms of nanoparticle release into the environment; (3) Ecological and biological effects of nanoparticles; (4) (Eco)toxicology of nanomaterials; (5) Methods for detection of nanoparticles in the environment and in biological objects; and (6) Physico-chemical properties of nanoparticles in the environment. We want to thank the Organizing Committee, the universities and sponsors supporting the conference,and everyone who contributed to the organization of this meeting, for their contribution towards the conference and for their contributions to these proceedings.

  19. Catalysis in the 3rd Dimension: How Organic Molecules May be Formed

    NASA Technical Reports Server (NTRS)

    Freund, Friedemann; DeVincenzi, D. (Technical Monitor)

    2001-01-01

    Catalysis is often little more than a word to phenomenologically describe the fact that a reaction follows a pat1 that leads to products of an unexpected kind or of unexpected yield. Low activation energy barriers for intermediates are recognized as the most likely cause why a system deviates from the thermodynamic pull towards minimizing its free energy and ends up in a metastable state. Seldom is the mechanism known. This i: particularly true for heterogeneous catalysis under hydrothermal conditions with minerals as catalysts. It is commonly assumed that catalytic action takes place across solid-fluid interfaces and that, on the atomic level, interfaces are just 2-dimensional contacts. This makes it difficult to understand, for instance, the assembly of long-chain carboxylic (fatty) acids. 3y studying single crystals that grew from a melt in the presence of H2O and CO2, we can show: (1) that numerals take up the fluid components into solid solution, (2) that some-thing happens converting them to -educedH and C, (3) that C atoms segregate into dislocations and tie C-C bonds. The products are medium-to-long chain Cn protomolecules, with some C-H attached, pre-assembled in the dislocations. Upon solvent extraction, these proto-molecules turn into carboxylic and dicarboxylic acids. This observation suggests that, in a very elementary step, catalysis under hydrothermal conditions leading to fatty acids involves the pre-assembly of Cn entities in the interface that is not 2-D but extends into the 3rd dimension, with dislocations as synthesis sites.

  20. 3rd hand smoking; heterogeneous oxidation of nicotine and secondary aerosol formation in the indoor environment

    NASA Astrophysics Data System (ADS)

    Petrick, Lauren; Dubowski, Yael

    2010-05-01

    Tobacco smoking is well known as a significant source of primary indoor air pollutants. However, only recently has it been recognized that the impact of Tobacco smoking may continue even after the cigarette has been extinguished (i.e., third hand smoke) due to the effect of indoor surfaces. These surfaces may affect the fate of tobacco smoke in the form of secondary reactions and pollutants, including secondary organic aerosol (SOA) formation. Fourier Transform Infrared spectrometry with Attenuated Total Reflection (FTIR-ATR) in tandem with a Scanning Mobility Particle Sizing (SMPS) system was used to monitor the ozonation of cellulose sorbed nicotine and resulting SOA formation. SOA formation began at onset of ozone introduction ([O3] = 60 ± 5 ppb) with a size distribution of dp ≤ 25 nm, and was determined to be a result of heterogeneous reaction (opposed to homogeneous). SOA yield from reacted surface nicotine was on the order of 10 %. Simultaneous to SOA monitoring, FTIR-ATR spectra showed surface changes in the nicotine film as the reaction progressed, revealing a pseudo first-order surface reaction rate of 0.0026 ± 0.0008 min-1. Identified surface oxidation products included: cotinine, myosmine, methylnicotinamide and nicotyrine. Surface reaction rate was found to be partially inhibited at high relative humidity. Given the toxicity of some of the identified products (e.g., cotinine has shown potential mutagenicity and teratogenicity) and that small particles may contribute to adverse health effects, the present study indicates that exposure to 3rd hand smoke ozonation products may pose additional health risks.

  1. Meeting report on the 3rd International Congress on Developmental Origins of Health and Disease (DOHaD)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Developmental Origins of Health and Disease (DOHaD) focuses on the earliest stages of human development, and provides a novel paradigm to complement other strategies for lifelong prevention of common chronic health conditions. The 3rd International Congress on DOHaD, held in 2005, retained the most ...

  2. Iowa Acceleration Scale Manual: A Guide for Whole-Grade Acceleration K-8. (3rd Edition, Manual)

    ERIC Educational Resources Information Center

    Assouline, Susan G.; Colangelo, Nicholas; Lupkowski-Shoplik, Ann; Forstadt, Leslie; Lipscomb, Jonathon

    2009-01-01

    Feedback from years of nationwide use has resulted in a 3rd Edition of this unique, systematic, and objective guide to considering and implementing academic acceleration. Developed and tested by the Belin-Blank Center at the University of Iowa, the IAS ensures that acceleration decisions are systematic, thoughtful, well reasoned, and defensible.

  3. Constancy and Variability: Dialogic Literacy Events as Sites for Improvisation in Two 3rd-Grade Classrooms

    ERIC Educational Resources Information Center

    Jordan, Michelle E.; Santori, Diane

    2015-01-01

    This multisite study investigates dialogic literacy events that revolved around narrative and informational texts in two 3rd-grade classrooms. The authors offer a metaphor of musical improvisation to contemplate dialogic literacy events as part of the repertoire of teaching and learning experiences. In literacy learning, where there is much…

  4. The Lived Experiences of 3rd Generation and beyond U.S.-Born Mexican Heritage College Students: A Qualitative Study

    ERIC Educational Resources Information Center

    Galvan, Richard

    2011-01-01

    The purpose of this study was to describe the psychosocial and identity challenges of 3rd generation and beyond U.S.-born (3GAB-USB) Mexican heritage college students. Alvarez (1973) has written about the psychosocial impact "hybridity" can have on a U.S.- born (USB) Mexican individual who incorporates two distinct cultures (American and Mexican)…

  5. Test Review: C. Keith Conners "Conners 3rd Edition" Toronto, Ontario, Canada--Multi-Health Systems, 2008

    ERIC Educational Resources Information Center

    Kao, Grace S.; Thomas, Hillary M.

    2010-01-01

    "Conners 3rd Edition" is the most updated version of a series of measures for assessing attention deficit hyperactivity disorder (ADHD) and common comorbid problems/disorders in children and adolescents ranging from 6 to 18 years of age. Related problems that the test helps assess include executive dysfunction, learning problems, aggression, and…

  6. Education Reform Starts Early: Lessons from New Jersey's PreK-3rd Reform Efforts

    ERIC Educational Resources Information Center

    Mead, Sara

    2009-01-01

    This report seeks to describe how New Jersey became a national leader in early education and PreK-3rd, identify its successes and challenges, draw lessons from its experience for policymakers in other states and nationally, and provide recommendations for New Jersey policymakers to translate progress to date into sustained, large scale learning…

  7. Predicting 3rd Grade and 10th Grade FCAT Success for 2006-07. Research Brief. Volume 0601

    ERIC Educational Resources Information Center

    Froman, Terry; Rubiera, Vilma

    2006-01-01

    For the past few years the Florida School Code has set the Florida Comprehensive Assessment Test (FCAT) performance requirements for promotion of 3rd graders and graduation for 10th graders. Grade 3 students who do not score at level 2 or higher on the FCAT SSS Reading must be retained unless exempted for special circumstances. Grade 10 students…

  8. Predicting 3rd Grade and 10th Grade FCAT Success for 2007-08. Research Brief. Volume 0702

    ERIC Educational Resources Information Center

    Froman, Terry; Rubiera, Vilma

    2008-01-01

    For the past few years the Florida School Code has set the Florida Comprehensive Assessment Test (FCAT) performance requirements for promotion of 3rd graders and graduation for 10 graders. Grade 3 students who do not score at level 2 or higher on the FCAT SSS Reading must be retained unless exempted for special circumstances. Grade 10 students…

  9. Iowa Acceleration Scale Manual: A Guide for Whole-Grade Acceleration K-8. (3rd Edition, Manual)

    ERIC Educational Resources Information Center

    Assouline, Susan G.; Colangelo, Nicholas; Lupkowski-Shoplik, Ann; Forstadt, Leslie; Lipscomb, Jonathon

    2009-01-01

    Feedback from years of nationwide use has resulted in a 3rd Edition of this unique, systematic, and objective guide to considering and implementing academic acceleration. Developed and tested by the Belin-Blank Center at the University of Iowa, the IAS ensures that acceleration decisions are systematic, thoughtful, well reasoned, and defensible.…

  10. Visual Arts Teaching in Kindergarten through 3rd-Grade Classrooms in the UAE: Teacher Profiles, Perceptions, and Practices

    ERIC Educational Resources Information Center

    Buldu, Mehmet; Shaban, Mohamed S.

    2010-01-01

    This study portrayed a picture of kindergarten through 3rd-grade teachers who teach visual arts, their perceptions of the value of visual arts, their visual arts teaching practices, visual arts experiences provided to young learners in school, and major factors and/or influences that affect their teaching of visual arts. The sample for this study

  11. The Lived Experiences of 3rd Generation and beyond U.S.-Born Mexican Heritage College Students: A Qualitative Study

    ERIC Educational Resources Information Center

    Galvan, Richard

    2011-01-01

    The purpose of this study was to describe the psychosocial and identity challenges of 3rd generation and beyond U.S.-born (3GAB-USB) Mexican heritage college students. Alvarez (1973) has written about the psychosocial impact "hybridity" can have on a U.S.- born (USB) Mexican individual who incorporates two distinct cultures (American and Mexican)

  12. Visual Arts Teaching in Kindergarten through 3rd-Grade Classrooms in the UAE: Teacher Profiles, Perceptions, and Practices

    ERIC Educational Resources Information Center

    Buldu, Mehmet; Shaban, Mohamed S.

    2010-01-01

    This study portrayed a picture of kindergarten through 3rd-grade teachers who teach visual arts, their perceptions of the value of visual arts, their visual arts teaching practices, visual arts experiences provided to young learners in school, and major factors and/or influences that affect their teaching of visual arts. The sample for this study…

  13. Test Review: Colarusso, R. P., & Hammill, D. D. (2003). "Motor-Free Visual Perception Test."(3rd ed.). Novata, CA: Academic Therapy Publications

    ERIC Educational Resources Information Center

    McCane, Sara Jean

    2006-01-01

    The Motor-Free Visual Perception Test: Third edition (MVPT-3; Colarusso & Hammill, 2003) purports to measure overall visual perceptual ability. Task responses require no motor ability, eliminating the effect of motor performance on the overall visual perception score. The test authors suggested that this MVPT-3 characteristic allows for its use…

  14. General Dentistry Grant Program: 1976-1996.

    ERIC Educational Resources Information Center

    Duffy, Rosemary; Weaver, Richard G.; Hayes, Kathy L.

    1997-01-01

    The federal general dentistry grant program supports development of new programs and first-year positions in postdoctoral general dentistry education. Since inception, 115 institutions have participated, establishing 59 new programs (88% remain in operation) and 560 new positions (69% of which are still being filled), representing 72% and 77%,…

  15. Practical marketing for dentistry. 5. Buyer behaviour.

    PubMed

    Ball, R

    1996-07-20

    Although the term 'buyer behaviour' may seem too commercial for the healthcare situation, in dentistry especially most patients 'buy' dental services and many of the principles of buyer behaviour are relevant to marketing in dentistry. This article looks at the factors that influence why people buy what they do. PMID:8791842

  16. Does 3rd Age + 3rd World = 3rd Class?

    ERIC Educational Resources Information Center

    Tout, Ken

    1992-01-01

    Demographic changes, migration, and industrialization are having drastic effects on older adults in developing nations. Local programs such as Pro Vida in Colombia, supported by Help Age International, rely on the support of volunteers to improve the quality of life for elderly people. (SK)

  17. Building monument materials during the 3rd-4rd millennium (Portugal)

    NASA Astrophysics Data System (ADS)

    Moita, Patricia; Pedro, Jorge; Boaventura, Rui; Mataloto, Rui; Maximo, Jaime; Almeida, Luís; Nogueira, Pedro

    2014-05-01

    Dolmens are the most conspicuous remains of the populations of the 4th and first half of 3rd millennia BCE. These tombs are impressive not only for their monumentality, but also because of the socioeconomic investment they represent for those Neolithic communities, namely from the Central-South of Portugal, who built them. Although dolmens have been studied for their funerary content and typologies, an interdisciplinary approach toward the geological characterization and sourcing of stones used in these constructions has not received enough attention from researchers. With MEGAGEO project a multidisciplinary group of geologist and archaeologists intends to assess the relationship between the distribution of dolmens in Central-South Portugal, their source materials, and the geological landscape. GIS will map the information gathered and will be used to analyse these relationships. The selection of the areas, with distinctive geologies (limestone vs granite), will allow to verify if human patterns of behaviour regarding the selection of megaliths are similar or different regionally. Geologically the first target area (Freixo, Alentejo) is dominated by a small intrusion of gabbro mingled/mixed within a granodioritic intrusion both related with variscan orogeny. Granodiorite exhibit several enclaves of igneous and metamorphic nature attesting the interaction between both igneous rocks as well with enclosing gneisses. Despite Alentejo region have a reduced number of outcrops the granodiorite provides rounded to tabular metric blocks. The gabbro is very coarse grained, sometimes with a cumulate texture, and their fracturing and weathering provide very fresh tabular blocks. The five studied dolmens (Quinta do Freixo #1 to #5) are implanted in a large granodioritic intrusion, around the gabbroic rocks, within an area of approximately 9km2. The medium grained granodiorite is ubiquity in all the dolmens slabs and occasionally it can be observed features of mixing and mingling mechanisms; interpenetration of different magmas and enclaves. There were not identified slabs of gabbros in dolmens slabs. In distances less than 100m from the dolmens, it is possible to identify an outcrop with equal features (petrographic as well geometric) with those found in the slabs. These observations agrees with previous authors (e.g. Boaventura, 2000) that favours a pragmatic attitude of Neolithic populations in the search of the appropriate slabs for construction. Funding - MEGAGEO PTDC /EPH-ARQ/3971/2012 Boaventura, R. (2000) - A geologia das Antas de Rabuje (Monforte, Alentejo), Revista Portuguesa de Arquelogia.Vol. 3;2.pp-15-23.

  18. SESAME - A 3rd Generation Synchrotron Light Source for the Middle East

    NASA Astrophysics Data System (ADS)

    U˝Lkü, Dinçer; Rahighi, Javad; Winick, Herman

    2007-01-01

    SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be the Middle East's first international research center. It is a cooperative venture by the scientists and governments of the region with founding members Bahrain, Egypt, Israel, Jordan, Pakistan, Palestine Authority, and Turkey. Iran is in the process of finalizing its formal membership. Other countries (Cyprus, Morocco, and the United Arab Emirates) are also expected to join. The permanent Council of member states has full responsibility for the project. Members provide the annual operating budget. Observer countries are Germany, Greece, Italy, Kuwait, Portugal, Russian Federation, Sweden, the UK, and the US. SESAME is being developed under the umbrella of UNESCO. Jordan was selected as the building site. SESAME will offer excellent opportunities for training of Middle East scientists and attract those working abroad to consider returning. SESAME will be a 2.5GeV 3rd Generation light source (emittance 26nm-rad, circumference ~133m), providing excellent performance for structural molecular biology, molecular environmental science, surface and interface science, microelectromechanical devices, x-ray imaging, archaeological microanalysis, and materials characterization. It will cover a broad spectral range from the infrared to hard x-rays and will have 12 straight sections for insertion devices (average length 2.75m). The injector will be the BESSY I 0.8 GeV booster synchrotron which has been given as a gift from Germany. Four committees advise the Council and assist in developing the technical design, beam lines, user community, and scientific Program. The SESAME building, now in construction with funds and a site provided by Jordan, is scheduled for completion in late 2006 after which the BESSY I injector will be installed. First stored beam in the new 2.5 GeV ring is planned for 2009 with six initial beamlines planned. Some beamlines will be built by member countries. Additional funds to purchase components of the new ring and beamlines are being sought from the EU, the US, and other sources. SESAME has benefited greatly from offers by other light source facilities of equipment and training fellowships in both accelerator technology and applications of synchrotron radiation. Details of this, and other aspects of the training program, are given below. It is hoped that in the future fellowship offers will continue to be made by many light source laboratories to further increase the level of experience with accelerator technology and synchrotron light science in preparation for the start of operation of SESAME.

  19. SESAME - A 3rd Generation Synchrotron Light Source for the Middle East

    SciTech Connect

    Ulkue, Dincer; Rahighi, Javad; Winick, Herman

    2007-01-19

    SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be the Middle East's first international research center. It is a cooperative venture by the scientists and governments of the region with founding members Bahrain, Egypt, Israel, Jordan, Pakistan, Palestine Authority, and Turkey. Iran is in the process of finalizing its formal membership. Other countries (Cyprus, Morocco, and the United Arab Emirates) are also expected to join. The permanent Council of member states has full responsibility for the project. Members provide the annual operating budget. Observer countries are Germany, Greece, Italy, Kuwait, Portugal, Russian Federation, Sweden, the UK, and the US. SESAME is being developed under the umbrella of UNESCO. Jordan was selected as the building site. SESAME will offer excellent opportunities for training of Middle East scientists and attract those working abroad to consider returning. SESAME will be a 2.5GeV 3rd Generation light source (emittance 26nm-rad, circumference {approx}133m), providing excellent performance for structural molecular biology, molecular environmental science, surface and interface science, microelectromechanical devices, x-ray imaging, archaeological microanalysis, and materials characterization. It will cover a broad spectral range from the infrared to hard x-rays and will have 12 straight sections for insertion devices (average length 2.75m). The injector will be the BESSY I 0.8 GeV booster synchrotron which has been given as a gift from Germany. Four committees advise the Council and assist in developing the technical design, beam lines, user community, and scientific Program. The SESAME building, now in construction with funds and a site provided by Jordan, is scheduled for completion in late 2006 after which the BESSY I injector will be installed. First stored beam in the new 2.5 GeV ring is planned for 2009 with six initial beamlines planned. Some beamlines will be built by member countries. Additional funds to purchase components of the new ring and beamlines are being sought from the EU, the US, and other sources. SESAME has benefited greatly from offers by other light source facilities of equipment and training fellowships in both accelerator technology and applications of synchrotron radiation. Details of this, and other aspects of the training program, are given below. It is hoped that in the future fellowship offers will continue to be made by many light source laboratories to further increase the level of experience with accelerator technology and synchrotron light science in preparation for the start of operation of SESAME.

  20. SESAME — A 3rd Generation Synchrotron Light Source for the Middle East

    NASA Astrophysics Data System (ADS)

    Å°lkü, Dinçer; Rahighi, Javad; Winick, Herman

    2007-01-01

    SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) will be the Middle East's first international research center. It is a cooperative venture by the scientists and governments of the region with founding members Bahrain, Egypt, Israel, Jordan, Pakistan, Palestine Authority, and Turkey. Iran is in the process of finalizing its formal membership. Other countries (Cyprus, Morocco, and the United Arab Emirates) are also expected to join. The permanent Council of member states has full responsibility for the project. Members provide the annual operating budget. Observer countries are Germany, Greece, Italy, Kuwait, Portugal, Russian Federation, Sweden, the UK, and the US. SESAME is being developed under the umbrella of UNESCO. Jordan was selected as the building site. SESAME will offer excellent opportunities for training of Middle East scientists and attract those working abroad to consider returning. SESAME will be a 2.5GeV 3rd Generation light source (emittance 26nm-rad, circumference ˜133m), providing excellent performance for structural molecular biology, molecular environmental science, surface and interface science, microelectromechanical devices, x-ray imaging, archaeological microanalysis, and materials characterization. It will cover a broad spectral range from the infrared to hard x-rays and will have 12 straight sections for insertion devices (average length 2.75m). The injector will be the BESSY I 0.8 GeV booster synchrotron which has been given as a gift from Germany. Four committees advise the Council and assist in developing the technical design, beam lines, user community, and scientific Program. The SESAME building, now in construction with funds and a site provided by Jordan, is scheduled for completion in late 2006 after which the BESSY I injector will be installed. First stored beam in the new 2.5 GeV ring is planned for 2009 with six initial beamlines planned. Some beamlines will be built by member countries. Additional funds to purchase components of the new ring and beamlines are being sought from the EU, the US, and other sources. SESAME has benefited greatly from offers by other light source facilities of equipment and training fellowships in both accelerator technology and applications of synchrotron radiation. Details of this, and other aspects of the training program, are given below. It is hoped that in the future fellowship offers will continue to be made by many light source laboratories to further increase the level of experience with accelerator technology and synchrotron light science in preparation for the start of operation of SESAME.

  1. PREFACE: 3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

    NASA Astrophysics Data System (ADS)

    Yamada, Taiichi; Kanada-En'yo, Yoshiko

    2014-12-01

    The 3rd International Workshop on "State of the Art in Nuclear Cluster Physics"(SOTANCP3) was held at KGU Kannai Media Center, Kanto Gakuin University, Yokohama, Japan, from May 26 to 30, 2014. Yokohama is the second largest city in Japan, about 25 km southeast of Tokyo. The first workshop of the series was held in Strasbourg, France, in 2008 and the second one was in Brussels, Belgium, in 2010. The purpose of SOTANCP3 was to discuss the present status and future perspectives of the nuclear cluster physics. The following nine topics were selected in order to cover most of the scientific programme and highlight an area where new ideas have emerged over recent years: (1) Cluster structures and many-body correlations in stable and unstable nuclei (2) Clustering aspects of nuclear reactions and resonances (3) Alpha condensates and analogy with condensed matter approaches (4) Role of tensor force in cluster physics and ab initio approaches (5) Clustering in hypernuclei (6) Nuclear fission, superheavy nuclei, and cluster decay (7) Cluster physics and nuclear astrophysics (8) Clustering in nuclear matter and neutron stars (9) Clustering in hadron and atomic physics There were 122 participants, including 53 from 17 foreign countries. In addition to invited talks, we had many talks selected from contributed papers. There were plenary, parallel, and poster sessions. Poster contributions were also presented as four-minute talks in parallel sessions. This proceedings contains the papers presented in invited and selected talks together with those presented in poster sessions. We would like to express our gratitude to the members of the International Advisory Committee and those of the Organizing Committee for their efforts which made this workshop successful. In particular we would like to present our great thanks to Drs. Y. Funaki, W. Horiuchi, N. Itagaki, M. Kimura, T. Myo, and T. Yoshida. We would like also to thank the following organizations for their sponsors: RCNP (Research Center for Nuclear Physics, Osaka University), CNS (Center for Nuclear Study, University of Tokyo), JICFuS (Joint Institute for Computational Fundamental Science), and RIKEN (Nishina Center for Accelerator-Based Science, Institute of Physical and Chemical Research). This workshop was supported by Yokohama Convention & Visitors Bureau and Kanto Gakuin University. It remains to be announced that the next, the fourth in this series of SOTANCP workshops, SOTANCP4, will be held in Galveston, Texas, USA, in 2018.

  2. Essential surgery: key messages from Disease Control Priorities, 3rd edition.

    PubMed

    Mock, Charles N; Donkor, Peter; Gawande, Atul; Jamison, Dean T; Kruk, Margaret E; Debas, Haile T

    2015-05-30

    The World Bank will publish the nine volumes of Disease Control Priorities, 3rd edition, in 2015-16. Volume 1--Essential Surgery--identifies 44 surgical procedures as essential on the basis that they address substantial needs, are cost effective, and are feasible to implement. This report summarises and critically assesses the volume's five key findings. First, provision of essential surgical procedures would avert about 1·5 million deaths a year, or 6-7% of all avertable deaths in low-income and middle-income countries. Second, essential surgical procedures rank among the most cost effective of all health interventions. The surgical platform of the first-level hospital delivers 28 of the 44 essential procedures, making investment in this platform also highly cost effective. Third, measures to expand access to surgery, such as task sharing, have been shown to be safe and effective while countries make long-term investments in building surgical and anaesthesia workforces. Because emergency procedures constitute 23 of the 28 procedures provided at first-level hospitals, expansion of access requires that such facilities be widely geographically diffused. Fourth, substantial disparities remain in the safety of surgical care, driven by high perioperative mortality rates including anaesthesia-related deaths in low-income and middle-income countries. Feasible measures, such as WHO's Surgical Safety Checklist, have led to improvements in safety and quality. Fifth, the large burden of surgical disorders, cost-effectiveness of essential surgery, and strong public demand for surgical services suggest that universal coverage of essential surgery should be financed early on the path to universal health coverage. We point to estimates that full coverage of the component of universal coverage of essential surgery applicable to first-level hospitals would require just over US$3 billion annually of additional spending and yield a benefit-cost ratio of more than 10:1. It would efficiently and equitably provide health benefits, financial protection, and contributions to stronger health systems. PMID:25662414

  3. PREFACE: 3rd International Workshop on Statistical Physics and Mathematics for Complex Systems (SPMCS 2012)

    NASA Astrophysics Data System (ADS)

    Tayurskii, Dmitrii; Abe, Sumiyoshi; Alexandre Wang, Q.

    2012-11-01

    The 3rd International Workshop on Statistical Physics and Mathematics for Complex Systems (SPMCS2012) was held between 25-30 August at Kazan (Volga Region) Federal University, Kazan, Russian Federation. This workshop was jointly organized by Kazan Federal University and Institut Supérieur des Matériaux et Mécaniques Avancées (ISMANS), France. The series of SPMCS workshops was created in 2008 with the aim to be an interdisciplinary incubator for the worldwide exchange of innovative ideas and information about the latest results. The first workshop was held at ISMANS, Le Mans (France) in 2008, and the third at Huazhong Normal University, Wuhan (China) in 2010. At SPMCS2012, we wished to bring together a broad community of researchers from the different branches of the rapidly developing complexity science to discuss the fundamental theoretical challenges (geometry/topology, number theory, statistical physics, dynamical systems, etc) as well as experimental and applied aspects of many practical problems (condensed matter, disordered systems, financial markets, chemistry, biology, geoscience, etc). The program of SPMCS2012 was prepared based on three categories: (i) physical and mathematical studies (quantum mechanics, generalized nonequilibrium thermodynamics, nonlinear dynamics, condensed matter physics, nanoscience); (ii) natural complex systems (physical, geophysical, chemical and biological); (iii) social, economical, political agent systems and man-made complex systems. The conference attracted 64 participants from 10 countries. There were 10 invited lectures, 12 invited talks and 28 regular oral talks in the morning and afternoon sessions. The book of Abstracts is available from the conference website (http://www.ksu.ru/conf/spmcs2012/?id=3). A round table was also held, the topic of which was 'Recent and Anticipated Future Progress in Science of Complexity', discussing a variety of questions and opinions important for the understanding of the concept of complexity itself, the behaviours of complex systems as well as for the finding of new theoretical methods. The papers submitted to this volume were carefully reviewed by referees. We are very grateful to the referees for their very efficient and thoughtful actions. A few submitted papers were unfortunately not included based on the referee reports. As a result, 34 papers are included here. We are very grateful to the members of the international advisory committee for their recommendations of speakers for SPMCS2012. We also appreciate the behind-the-scenes work of the members of the local organizing committee in preparing the conference site, web page, mail correspondence, arrangements for excursions and accommodation, handling the financial support for participants, and so on. Finally, we acknowledge the support from Kazan Federal University. Sumiyoshi Abe Alain Le Méhauté Dmitrii Tayurskii

  4. ic-cmtp3: 3rd International Conference on Competitive Materials and Technology Processes

    NASA Astrophysics Data System (ADS)

    2016-04-01

    Competitiveness is one of the most important factors in our lives and it plays a key role in the efficiency both of organizations and societies. The more scientifically advanced and prepared organizations develop more competitive materials with better physical, chemical, and biological properties, and the leading companies apply more competitive equipment and technological processes. The aims of the 3rd International Conference on Competitive Materials and Technology Processes (ic-cmtp3), and the 1st International Symposium on Innovative Carbons and Carbon Based Materials (is-icbm1) and the 1st International Symposium on Innovative Construction Materials (is-icm1) organized alongside are the following: —Promote new methods and results of scientific research in the fields of material, biological, environmental and technological sciences; —Exchange information between the theoretical and applied sciences as well as technical and technological implementations; —Promote communication and collaboration between the scientists, researchers and engineers of different nations, countries and continents. Among the major fields of interest are advanced and innovative materials with competitive characteristics, including mechanical, physical, chemical, biological, medical and thermal, properties and extreme dynamic strength. Their crystalline, nano - and micro-structures, phase transformations as well as details of their technological processes, tests and measurements are also in the focus of the ic-cmtp3 conference and the is-scbm1 and is-icm1 symposia. Multidisciplinary applications of material science and the technological problems encountered in sectors like ceramics, glasses, thin films, aerospace, automotive and marine industries, electronics, energy, construction materials, medicine, biosciences and environmental sciences are of particular interest. In accordance with the program of the ic-cmtp3 conference and is-icbm1 and is-icm1 symposia we have received more than 350 enquiries and registrations from different organizations. More than 240 abstracts were accepted for presentation. From them 12 were plenary lectures and 112 oral presentations. Researchers from 41 countries in Asia, Europe, Africa, North and South America travelled to Miskolc-Lillafüred (Hungary) and participated in the conference events. Including co-authors, the research work of more than 700 scientists were presented in the sessions and symposia of the ic-cmtp3 conference.

  5. PREFACE: 3rd International Workshop on Materials Analysis and Processing in Magnetic Fields (MAP3)

    NASA Astrophysics Data System (ADS)

    Sakka, Yoshio; Hirota, Noriyuki; Horii, Shigeru; Ando, Tsutomu

    2009-07-01

    The 3rd International Workshop on Materials Analysis and Processing in Materials Fields (MAP3) was held on 14-16 May 2008 at the University of Tokyo, Japan. The first was held in March 2004 at the National High Magnetic Field Laboratory in Tallahassee, USA. Two years later the second took place in Grenoble, France. MAP3 was held at The University of Tokyo International Symposium, and jointly with MANA Workshop on Materials Processing by External Stimulation, and JSPS CORE Program of Construction of the World Center on Electromagnetic Processing of Materials. At the end of MAP3 it was decided that the next MAP4 will be held in Atlanta, USA in 2010. Processing in magnetic fields is a rapidly expanding research area with a wide range of promising applications in materials science. MAP3 focused on the magnetic field interactions involved in the study and processing of materials in all disciplines ranging from physics to chemistry and biology: Magnetic field effects on chemical, physical, and biological phenomena Magnetic field effects on electrochemical phenomena Magnetic field effects on thermodynamic phenomena Magnetic field effects on hydrodynamic phenomena Magnetic field effects on crystal growth Magnetic processing of materials Diamagnetic levitation Magneto-Archimedes effect Spin chemistry Application of magnetic fields to analytical chemistry Magnetic orientation Control of structure by magnetic fields Magnetic separation and purification Magnetic field-induced phase transitions Materials properties in high magnetic fields Development of NMR and MRI Medical application of magnetic fields Novel magnetic phenomena Physical property measurement by Magnetic fields High magnetic field generation> MAP3 consisted of 84 presentations including 16 invited talks. This volume of Journal of Physics: Conference Series contains the proceeding of MAP3 with 34 papers that provide a scientific record of the topics covered by the conference with the special topics (13 papers) in the journal Science and Technology of Advanced Materials. All articles have been refereed by experts in the field. Both of these journals are fully accessible electronically and can be cited and referenced in the usual way. It is our hope that the reader will enjoy and profit from the MAP3 Proceedings. Hitoshi Wada (Kashiwa, Japan) Chair Eric Beaugon (Grenoble, France) Hans J Schneider-Muntau (Tallahassee, USA) Co-chair Advisory Board Shigeo Asai (Nagoya, Japan) Koichi Kitazawa (Tokyo, Japan) Mitsuhiro Motokawa (Sendai, Japan) Shoogo Ueno (Fukuoka, Japan) Robert Tournier (Grenoble, France) Justin Schwartz (Tallahassee, USA) J C Maan (Nijmegen, Netherland) Scientific Committee Yoshifumi Tanimoto (Hiroshima, Japan) Masuhiro Yamaguchi (Yokohama, Japan) Tsunehisa Kimura (Kyoto, Japan) Yoshio Sakka (Tsukuba Japan) Ryoichi Aogaki (Tokyo, Japan) Jyunji Miyakoshi (Hirosaki, Japan) Kazuo Watanabe (Sendai, Japan) James M Valles Jr. (Providence, USA) Joon Pyo Park (Pohang, Korea) Qiang Wang (Shenyang, China) Nicole Pamme (Hull, UK) Sophie Rivoirard (Grenoble, France) P C M Christianen (Nijmegen, Netherland) Local Organizing Committee Isao Yamamoto Masafumi Yamato Shigeru Horii Norihito Sogoshi Masateru Ikehata Noriyuki Hirota Tsutomu Ando Proceedings Editorial Board Yoshio Sakka Noriyuki Hirota Shigeru Horii Tsutomu Ando Conference photograph

  6. A global drought climatology for the 3rd edition of the World Atlas of Desertification (WAD)

    NASA Astrophysics Data System (ADS)

    Spinoni, Jonathan; Carrao, Hugo; Naumann, Gustavo; Antofie, Tiberiu; Barbosa, Paulo; Vogt, Jürgen

    2013-04-01

    A new version of the World Atlas of Desertification (WAD) is being compiled in the framework of cooperation between the Joint Research Centre (JRC) of the European Commission and the United Nations Environment Programme (UNEP). This initiative aims at mapping the global land degradation and desertification, as well as introducing the reader with complex interactions of geo-physical, socio-economic, and political aspects that affect the environmental sustainability. Recurrent extreme events resulting from climate change, such as more severe droughts, combined with non-adapted land use practices can affect the resilience of ecosystems tipping them into a less productive state. Thus, to describe the effects of climatological hazards on land degradation and desertification processes, we computed a World drought climatology that will be part of the 3rd edition of the WAD and will replace and update to 2010 the results presented in the 2nd edition in 1997. This paper presents the methodology used to compute three parameters included in the WAD drought climatology, i.e. drought frequency, intensity and duration, and discusses their spatio-temporal patterns both at global and continental scales. Because drought is mainly driven and triggered by a rainfall deficit, we chose the Standardized Precipitation Index (SPI) as the drought indicator to estimate our climatological parameters. The SPI is a statistical precipitation-based drought indicator widely used in drought-related studies. We calculated the SPI on three different accumulation periods: 3 months (SPI-3), 6 months (SPI-6), and 12 months (SPI-12), in order to take into account meteorological, agricultural, and hydrological drought-related features. Each quantity has been calculated on a monthly basis using the baseline period between January 1951 and December 2010. As data input, we used the Full Data Reanalysis Version 6.0 (0.5˚x0.5˚) of gridded monthly precipitation provided by the Global Precipitation Climatology Center (GPCC) of the Deutscher Wetterdienst (DWD). This dataset was selected after an extensive quality check on data reliability, homogeneity, and physical consistency. We defined the drought frequency as the number of months with SPI below -1 out of all months in different periods of 10-15 years between 1951 and 2010. For the drought intensity we analyzed the drought events with at least 3 consecutive months with SPI below -1. The drought duration is defined in an operative way: a drought starts when SPI first falls below -1 and it ends when it turns back positive (i.e. >0) for at least 2 consecutive months. The results show that in the last two decades, as compared to the long-term normal conditions, the regions most affected by drought events were Congo and Central Africa, North-Eastern China, the Australian South-Eastern coast, and the Middle East. In general, an increase in duration and intensity of drought events was found for almost all the Northern Hemisphere. We also focused on some regional case studies dealing with drought events in the Mediterranean region, the Horn of Africa, and South America in the last 15 years

  7. PREFACE: 3rd Workshop on Theory, Modelling and Computational Methods for Semiconductors (TMCSIII)

    NASA Astrophysics Data System (ADS)

    Califano, Marco; Migliorato, Max; Probert, Matt

    2012-05-01

    These conference proceedings contain the written papers of the contributions presented at the 3rd International Conference on Theory, Modelling and Computational Methods for Semiconductor materials and nanostructures. The conference was held at the School of Electronic and Electrical Engineering, University of Leeds, Leeds, UK on 18-20 January 2012. The previous conferences in this series took place in 2010 at St William's College, York and in 2008 at the University of Manchester, UK. The development of high-speed computer architectures is finally allowing the routine use of accurate methods for calculating the structural, thermodynamic, vibrational, optical and electronic properties of semiconductors and their hetero- and nano-structures. The scope of this conference embraces modelling, theory and the use of sophisticated computational tools in semiconductor science and technology, where there is substantial potential for time-saving in R&D. Theoretical approaches represented in this meeting included: Density Functional Theory, Tight Binding, Semiempirical Pseudopotential Methods, Effective Mass Models, Empirical Potential Methods and Multiscale Approaches. Topics included, but were not limited to: Optical and Transport Properties of Quantum Nanostructures including Colloids and Nanotubes, Plasmonics, Magnetic Semiconductors, Graphene, Lasers, Photonic Structures, Photovoltaic and Electronic Devices. This workshop ran for three days, with the objective of bringing together UK and international leading experts in the theoretical modelling of Group IV, III-V and II-VI semiconductors, as well as students, postdocs and early-career researchers. The first day focused on providing an introduction and overview of this vast field, aimed particularly at students, with several lectures given by recognised experts in various theoretical approaches. The following two days showcased some of the best theoretical research carried out in the UK in this field, with several contributions also from representatives of renowned theoretical groups from many European countries (Spain, France, Ireland, Germany, Italy, Poland, Denmark, Sweden, Serbia, Greece, etc.), as well as Asia (India) and Africa (Algeria, Tunisia and South Africa). We would like to thank all participants for making this a very successful meeting and for their contribution to the conference programme and these proceedings. We would also like to acknowledge the financial support from the Institute of Physics (Computational Physics group and Semiconductor Physics group), and QuantumWise (distributors of Atomistix). The Editors Acknowledgments Conference Organising Committee: Marco Califano (University of Leeds) Max Migliorato (University of Manchester) Matt Probert (University of York) Programme Committee: Stewart Clark (University of Durham) Aldo Di Carlo (University of Rome 'Tor Vergata', Italy) Ben Hourahine (University of Strathclyde) Lev Kantorovich (King's College London) Risto Nieminen (Helsinki University of Technology, Finland) Eoin O'Reilly (Tyndall Institute Cork, Republic of Ireland) Mauro Pereira (Sheffield Hallam University) John Robertson (University of Cambridge) Mervin Roy (University of Leicester) Stanko Tomic (University of Salford) David Whittaker (University of Sheffield) The proceedings were edited and compiled by Marco Califano, Max Migliorato and Matt Probert.

  8. Community dentistry in Nordic dental schools.

    PubMed

    Riordan, P J; Widström, E

    1984-12-01

    Approximately a decade after the first plans for the teaching of community dentistry were made in the Nordic countries, a questionnaire survey of Nordic dental schools was conducted to find out to what extent community dentistry subjects had been introduced in undergraduate curricula. Replies were received from the 12 dental schools in Denmark, Finland, Norway and Sweden. These schools admitted 915 students in 1982-83. Seven had a department of community dentistry, and at least two others had plans to start one. About 100 h of teaching were given on community dentistry subjects during the 5-yr course of study, mostly on the traditional subjects of epidemiology, statistics, law and ethics. In some schools health education and other behavioral sciences subjects received a large amount of curriculum time. Decisionmaking theory and political science were not reported taught at any school. Three departments had attached clinics, with widely differing functions. The Nordic textbook in community dentistry was widely used, and separate examinations were held in community dentistry at most schools. Full-time postgraduate courses were offered at three schools. Although schools in all four countries expected the number of dental students to decrease in coming years, several schools expected community dentistry to expand with regard to curriculum time and staff, in keeping with trends in other countries. PMID:6597052

  9. Differential contribution of specific working memory components to mathematics achievement in 2nd and 3rd graders.

    PubMed

    Meyer, M L; Salimpoor, V N; Wu, S S; Geary, D C; Menon, V

    2010-04-01

    The contribution of the three core components of working memory (WM) to the development of mathematical skills in young children is poorly understood. The relation between specific WM components and Numerical Operations, which emphasize computation and fact retrieval, and Mathematical Reasoning, which emphasizes verbal problem solving abilities in 48 2nd and 50 3rd graders was assessed using standardized WM and mathematical achievement measures. For 2nd graders, the central executive and phonological components predicted Mathematical Reasoning skills; whereas the visuo-spatial component predicted both Mathematical Reasoning and Numerical Operations skills in 3rd graders. This pattern suggests that the central executive and phonological loop facilitate performance during early stages of mathematical learning whereas visuo-spatial representations play an increasingly important role during later stages. We propose that these changes reflect a shift from prefrontal to parietal cortical functions during mathematical skill acquisition. Implications for learning and individual differences are discussed. PMID:21660238

  10. Mechanical design and engineering of the 3.9 GHZ, 3rd harmonic SRF system at Fermilab

    SciTech Connect

    Don Mitchell et al.

    2004-08-05

    The mechanical development of the 3.9 GHz, 3rd Harmonic SRF System is summarized to include: the development of a full scale copper prototype cavity structure; the design of the niobium 3 cell and niobium 9 cell structures; the design of the helium vessel and cryostat; the HOM coupler design; and a preliminary look at the main coupler design. The manufacturing processes for forming, rolling, and e-beam welding the HOM coupler, cavity cells, and end tubes are also described. Due to the exotic materials and manufacturing processes used in this type of device, a cost estimate for the material and fabrication is provided. The 3rd harmonic design is organized via a web-based data management approach.

  11. Advances of Proteomic Sciences in Dentistry

    PubMed Central

    Khurshid, Zohaib; Zohaib, Sana; Najeeb, Shariq; Zafar, Muhammad Sohail; Rehman, Rabia; Rehman, Ihtesham Ur

    2016-01-01

    Applications of proteomics tools revolutionized various biomedical disciplines such as genetics, molecular biology, medicine, and dentistry. The aim of this review is to highlight the major milestones in proteomics in dentistry during the last fifteen years. Human oral cavity contains hard and soft tissues and various biofluids including saliva and crevicular fluid. Proteomics has brought revolution in dentistry by helping in the early diagnosis of various diseases identified by the detection of numerous biomarkers present in the oral fluids. This paper covers the role of proteomics tools for the analysis of oral tissues. In addition, dental materials proteomics and their future directions are discussed. PMID:27187379

  12. Tuned alexandrite laser for dentistry

    NASA Astrophysics Data System (ADS)

    Sulc, Jan; Jelinkova, Helena; Dostalova, Tatjana; Miyagi, Mitsunobu

    1999-12-01

    A tunable solid state laser system has been developed emitting visible light in the region from 710 to 775 nm, which can be used for medical applications. The laser head of this system is composed of alexandrite crystal rod, two dielectric mirrors, and a tuning element. The maximum reached output energy in the free running multimode regime was 400 mJ with the pulse duration of 70 micrometers . The output laser radiation was guided via a multimode quartz fiber or via a special fluorocarbon polymer-coated silver hollow glass waveguide. At first, this radiation with laser fluency of 2.5 J/cm2 was used for the ablation of dental calculus. Next, the laser radiation propagation in the root canal and its effect on bacteria was proved. The dissipated energy measurement was made inside and outside the tooth. Hence, the alexandrite laser could be useful for medical applications in dentistry.

  13. The electronic journal for dentistry.

    PubMed

    Makinson, O F; Haynes, T R; Kirkwood, I D

    1989-03-01

    Electronic publishing is expanding very rapidly and will soon substitute in part for the traditional role of paper and printing in accessing information and in its library storage. This change is occurring now for medicine and engineering. For dentistry the compact disc (CD-ROM) would have advantages over tape or on-line computer systems; one or two discs a year could hold all current dental journal and textbook literature. The setting of standards is the key to the successful introduction of this technology through production and playback systems. Indexing, retrieval and hardware are considered as well as copyright problems. The profession has the chance to guide the introduction of this publishing system in preference to it being fragmented between multiple publishers and thereby becoming costly. A proposal is offered which includes the nexus of traditional printing with this new publishing form through a forum for considering standards and goals for agreement on principles. PMID:2703262

  14. Ayurveda in Dentistry: A Review.

    PubMed

    Gupta, Roopali; Ingle, Navin Anand; Kaur, Navpreet; Yadav, Pramod; Ingle, Ekta; Charania, Zohara

    2015-08-01

    Ayurvedic medicine was considered to be world's oldest medical system, which was originated in India dating back over thousands of years. There was a long history regarding plants for the improvement of dental health and oral hygiene. To study various plants and their products as effective medicines in the treatment of various ailments since ancient times. Data were performed in PubMed Central and Cochrane library using MeSH Terms - Dentistry, Herbal Medicine, Periodontitis. A total of 142 relevant articles were found in 2013 and 2014 followed by case reports. Various studies have mentioned the uses of herbs, which are found to be statistically significant in treatment and management of oral diseases. Current researches showed that herbal extracts are effective because of the interaction with specific chemical receptors within the body. Nowadays, there has been a sudden increase in the use of herbal extracts or plant products as an alternative approach to modern day medicines. PMID:26464558

  15. Unethical aspects of homeopathic dentistry.

    PubMed

    Shaw, D

    2010-11-27

    In the last year there has been a great deal of public debate about homeopathy, the system of alternative medicine whose main principles are that like cures like and that potency increases relative to dilution. The House of Commons Select Committee on Science and Technology concluded in November 2009 that there is no evidence base for homeopathy, and agreed with some academic commentators that homeopathy should not be funded by the NHS. While homeopathic doctors and hospitals are quite commonplace, some might be surprised to learn that there are also many homeopathic dentists practising in the UK. This paper examines the statements made by several organisations on behalf of homeopathic dentistry and suggests that they are not entirely ethical and may be in breach of various professional guidelines. PMID:21109801

  16. Role of Triphala in dentistry

    PubMed Central

    Prakash, Shobha; Shelke, Anup U.

    2014-01-01

    Ayurveda is considered as the “science of life,” because the ancient Indian system of health care focused views of man and his illness. India has an age-old heritage of traditional herbal medicine. Conventional drugs usually provide effective antibiotic therapy for bacterial infections, but there is an increasing problem of antibiotic resistance and a continuing need for new solutions. Hence, now herbal drugs are being preferred to synthetic antibiotics. ‘Triphala’ is a well-known powdered preparation in the Indian system of medicine (ISM). It consists of equal parts of the Emblica officinalis, Terminalia chebula, and Terminalia belerica. Currently, Triphala is being extensively researched for its various therapeutic effects including its anti-caries, antioxidant, anti-collagenase, and anti-microbial activities. The present review will focus on the comprehensive appraisal of Triphala and its several applications in dentistry. PMID:24872616

  17. Ayurveda in Dentistry: A Review

    PubMed Central

    Gupta, Roopali; Ingle, Navin Anand; Kaur, Navpreet; Yadav, Pramod; Ingle, Ekta; Charania, Zohara

    2015-01-01

    Ayurvedic medicine was considered to be world’s oldest medical system, which was originated in India dating back over thousands of years. There was a long history regarding plants for the improvement of dental health and oral hygiene. To study various plants and their products as effective medicines in the treatment of various ailments since ancient times. Data were performed in PubMed Central and Cochrane library using MeSH Terms - Dentistry, Herbal Medicine, Periodontitis. A total of 142 relevant articles were found in 2013 and 2014 followed by case reports. Various studies have mentioned the uses of herbs, which are found to be statistically significant in treatment and management of oral diseases. Current researches showed that herbal extracts are effective because of the interaction with specific chemical receptors within the body. Nowadays, there has been a sudden increase in the use of herbal extracts or plant products as an alternative approach to modern day medicines. PMID:26464558

  18. FOREWORD: 3rd International Workshop on New Computational Methods for Inverse Problems (NCMIP 2013)

    NASA Astrophysics Data System (ADS)

    Blanc-Féraud, Laure; Joubert, Pierre-Yves

    2013-10-01

    Conference logo This volume of Journal of Physics: Conference Series is dedicated to the scientific contributions presented during the 3rd International Workshop on New Computational Methods for Inverse Problems, NCMIP 2013 (http://www.farman.ens-cachan.fr/NCMIP_2013.html). This workshop took place at Ecole Normale Supérieure de Cachan, in Cachan, France, on 22 May 2013, at the initiative of Institut Farman. The prior editions of NCMIP also took place in Cachan, France, firstly within the scope of the ValueTools Conference, in May 2011 (http://www.ncmip.org/2011/), and secondly at the initiative of Institut Farman, in May 2012 (http://www.farman.ens-cachan.fr/NCMIP_2012.html). The NCMIP Workshop focused on recent advances in the resolution of inverse problems. Indeed inverse problems appear in numerous scientific areas such as geophysics, biological and medical imaging, material and structure characterization, electrical, mechanical and civil engineering, and finances. The resolution of inverse problems consists of estimating the parameters of the observed system or structure from data collected by an instrumental sensing or imaging device. Its success firstly requires the collection of relevant observation data. It also requires accurate models describing the physical interactions between the instrumental device and the observed system, as well as the intrinsic properties of the solution itself. Finally, it requires the design of robust, accurate and efficient inversion algorithms. Advanced sensor arrays and imaging devices provide high rate and high volume data; in this context, the efficient resolution of the inverse problem requires the joint development of new models and inversion methods, taking computational and implementation aspects into account. During this one-day workshop, researchers had the opportunity to bring to light and share new techniques and results in the field of inverse problems. The topics of the workshop were: algorithms and computational aspects of inversion, Bayesian estimation, kernel methods, learning methods, convex optimization, free discontinuity problems, metamodels, proper orthogonal decomposition, reduced models for the inversion, non-linear inverse scattering, image reconstruction and restoration, and applications (bio-medical imaging, non-destructive evaluation...). NCMIP 2013 was a one-day workshop held in May 2013 which attracted around 60 attendees. Each of the submitted papers has been reviewed by three reviewers. Among the accepted papers, there are seven oral presentations, five posters and one invited poster (On a deconvolution challenge presented by C Vonesch from EPFL, Switzerland). In addition, three international speakers were invited to present a longer talk. The workshop was supported by Institut Farman (ENS Cachan, CNRS) and endorsed by the following French research networks (GDR ISIS, GDR Ondes, GDR MOA, GDR MSPC). The program committee acknowledges the following research laboratories CMLA, LMT, LSV, LURPA, SATIE. Laure Blanc-Féraud and Pierre-Yves Joubert Workshop co-chair Laure Blanc-Féraud, I3S laboratory and INRIA Nice Sophia-Antipolis, France Pierre-Yves Joubert, IEF, Paris-Sud University, CNRS, France Technical program committee Gilles Aubert, J-A Dieudonné Laboratory, CNRS and University of Nice-Sophia Antipolis, France Nabil Anwer, LURPA, ENS Cachan, France Alexandre Baussard, ENSTA Bretagne, Lab-STICC, France Marc Bonnet, ENSTA, ParisTech, France Antonin Chambolle, CMAP, Ecole Polytechnique, CNRS, France Oliver Dorn, School of Mathematics, University of Manchester, UK Cécile Durieu, SATIE, ENS Cachan, CNRS, France Gérard Favier, I3S Laboratory, University of Nice Sophia-Antipolis, France Mário Figueiredo, Instituto Superior Técnico, Lisbon, Portugal Laurent Fribourg, LSV, ENS Cachan, CNRS, France Marc Lambert, L2S Laboratory, CNRS, SupElec, Paris-Sud University, France Dominique Lesselier, L2S Laboratory, CNRS, SupElec, Paris-Sud University, France Matteo Pastorino, DIBE, University of Genoa, Italy Christian Rey, LMT, ENS Cachan, CNRS, France Simon Setzer, Saarland University, Germany Cedric Vonesch, EPFL, Switzerland Local chair Sophie Abriet, SATIE Laboratory, ENS Cachan, France Béatrice Bacquet, SATIE Laboratory, ENS Cachan, France Lydia Matijevic, LMT Laboratory, ENS Cachan France Invited speakers Jérôme Idier, IRCCyN (UMR CNRS 6597), Ecole Centrale de Nantes, France Massimo Fornasier, Faculty of Mathematics, Technical University of Munich, Germany Matthias Fink, Institut Langevin, ESPCI, Université Paris Diderot, France

  19. Application service providers in dentistry.

    PubMed

    Schleyer, Titus

    2002-07-01

    ASP practice management systems are a new and potentially useful service for the dental profession. ASP systems have the potential to reduce the time, effort, and expense required to maintain computer-based practice management functions. ASP systems can deliver a rich array of functions at a distance, eliminate concerns about upgrades, back-ups, and server hardware, and make management of client workstations easier. The ASP industry is young, however, and its companies and products will be in constant flux. Practitioners should exercise great caution in selecting an ASP system. If the ASP model proves viable in dentistry over the long term, we can expect to see a growing number of services being delivered over the Internet. Many ASPs exist already that serve many needs of small businesses, such as accounting, personnel management, and supply ordering. Application service provider systems also have the potential to improve communication between dental care providers. The ease of exchanging selected patient information between providers may result in more patient-related information exchange than is currently the case. The quality of dental care can only benefit. PMID:12222092

  20. Green dentistry, a metamorphosis towards an eco-friendly dentistry: a short communication.

    PubMed

    Rastogi, Varun; Sharma, Rachna; Yadav, Lalita; Satpute, Pranali; Sharma, Vandana

    2014-07-01

    Dentistry is most importantly and foremost a healing profession. In today's world, it is very necessary to understand the importance of being eco-friendly in every facet of our lives, including dental practice which has a huge impact on the environment due to the large amount of metallic waste generated by various dental procedures along with excessive use of water and electricity, which specifically emphasis the thrust to move towards 'Green dentistry'. Green dentistry is an innovative way of dental practice which is environment friendly and at the same time conserves money and time by reducing waste, conserving energy and decreasing pollution with the use of latest techniques and procedures. Green dentistry therefore, protects the environment and mankind from the hazards of rapid urbanisation in developing countries. The authors wish to emphasize the practice of eco-friendly, green dentistry in a developing country like India which needs to conserve resources and curb environmental pollution. PMID:25177666

  1. A 3rd Generation Advanced High-Strength Steel (AHSS) Produced by Dual Stabilization Heat Treatment (DSHT)

    NASA Astrophysics Data System (ADS)

    Qu, Hao; Michal, Gary M.; Heuer, Arthur H.

    2013-10-01

    A 3rd generation advanced high-strength steel containing, in wt pct, 0.3 C, 4.0 Mn, 1.5 Al, 2.1 Si, and 0.5 Cr has been produced using a dual stabilization heat treatment—a five stage thermal processing schedule compatible with continuous galvanized steel production. In excess of 30 vol pct retained austenite containing at least 0.80 wt pct C was achieved with this alloy, which had tensile strengths up to 1650 MPa and tensile elongations around 20 pct.

  2. Quantitative metabolic profiles of 2nd and 3rd trimester human amniotic fluid using 1H HR-MAS spectroscopy

    PubMed Central

    Cohn, Brad R.; Zhao, Shoujun; Kornak, John; Zhang, Vickie Y.; Iman, Rahwa; Kurhanewicz, John; Vahidi, Kiarash; Yu, Jingwei; Caughey, Aaron B.; Swanson, Mark G.

    2016-01-01

    Object To establish and compare normative metabolite concentrations in 2nd and 3rd trimester human amniotic fluid samples in an effort to reveal metabolic biomarkers of fetal health and development. Materials and methods Twenty-one metabolite concentrations were compared between 2nd (15–27 weeks gestation, N = 23) and 3rd (29–39 weeks gestation, N = 27) trimester amniotic fluid samples using 1H high resolution magic angle spinning (HR-MAS) spectroscopy. Data were acquired using the electronic reference to access in vivo concentrations method and quantified using a modified semi-parametric quantum estimation algorithm modified for high-resolution ex vivo data. Results Sixteen of 21 metabolite concentrations differed significantly between 2nd and 3rd trimester groups. Betaine (0.00846±0.00206 mmol/kg vs. 0.0133±0.0058 mmol/kg, P <0.002) and creatinine (0.0124±0.0058 mmol/kg vs. 0.247±0.011 mmol/kg, P <0.001) concentrations increased significantly, while glucose (5.96±1.66 mmol/kg vs. 2.41±1.69 mmol/kg, P <0.001), citrate (0.740±0.217 mmol/kg vs. 0.399±0.137 mmol/kg, P <0.001), pyruvate (0.0659±0.0103 mmol/kg vs. 0.0299±0.286 mmol/kg, P <0.001), and numerous amino acid (e.g. alanine, glutamate, isoleucine, leucine, lysine, and valine) concentrations decreased significantly with advancing gestation. A stepwise multiple linear regression model applied to 50 samples showed that gestational age can be accurately predicted using combinations of alanine, glucose and creatinine concentrations. Conclusion These results provide key normative data for 2nd and 3rd trimester amniotic fluid metabolite concentrations and provide the foundation for future development of magnetic resonance spectroscopy (MRS) biomarkers to evaluate fetal health and development. PMID:19779747

  3. PREFACE: EDS2010 Preface

    NASA Astrophysics Data System (ADS)

    Heggie, Malcolm I.

    2011-03-01

    The biennial international conference on Extended Defects in Semiconductors started in 1978 with a meeting in Hünfeld, Germany. Subsequent meetings rotated between Poland, France, Great Britain, Germany, Russia and Italy, culminating in EDS2004 in Chernogolovka, EDS2006 in Halle and EDS2008 in Poitiers. EDS2010 was held at the University of Sussex at Brighton, UK from September 19th to 24th. An extension of the tabulation of this history, which first appeared on the EDS2006 website, is given in the attached PDF. It is with sadness that we note one of the founders of the series, Prof. Dr Helmut Alexander, passed away on 3 December 2009 and we were proud to dedicate EDS2010 to his memory. It has become a tradition to make an award in his name, and this year it was made to Ivan Isacov for his poster "Electrical levels of dislocation networks in p- and n-type silicon". A short and warm celebration of Prof. Dr Alexander's life by his friends and colleagues, Prof. Drs Helmut Gottschalk, Eicke Weber and Wolfgang Schröter, is included in this volume. The conference was a forum for the state-of-the-art of investigation and modelling of extended defects in semiconductors. Scientists from universities, research institutes and industry made contributions to a deeper understanding of extended defects, their interaction with point defects and their role in the development of semiconductor technology. The remit of the conference included extended defects, nanostructures, nanoparticles, quantum dots and interfaces within semiconducting materials ranging from narrow to wide band gaps, including graphene-derived materials and diamond. Scientific interests range from defect geometry, electronic structure, dynamics, spectroscopy, microscopy, reactions and chemistry to introduction mechanisms, such as implantation and strained layers and the operation of devices such as integrated circuits, heterostructures, and solar cells. The organisers were confronted with a long period between the afternoon outing to Arundel Castle and dinner in the evening at Wiston House, a mansion of Tudor origin near Steyning, West Sussex. So a short audience-participation seminar was held in the conference room of the manor, covering the history of dislocations and the history of the conference series. We were also able to extend the appreciation of the life of Prof. Yuri Ossipyan (15 Feb 1931 - 10 Sep 2008) briefly given at EDS2008. EDS2010 continued the drive into graphene-based materials with a session devoted to them, and it gave immense pleasure to many of us who were his former students to dedicate a session to the work of Professor R Jones. We are grateful to his present and former co-workers who came and presented an impressive perspective on their work with him and a vision of a vigorous future for him in his retirement and for AIMPRO, the current Density Functional Theory code that derives from the one he established with his former student, Dr Patrick Briddon. For EDS2010 we made two minor modifications to the appearance of the conference: a central webpage www.eds-conferences.org, ably managed by our webmaster, Dr Gemma Haffenden, and a Facebook page, "EDS conference series", which Dr Amy Gandy runs enthusiastically. Amongst other things the conference photographs appear here. "I like this". In fact, currently 22 FB-ers "like this" and I am sure it will grow. Finally, it is a pleasure to acknowledge the significant contributions of Co-Chair, Prof. Marek Skowronski, Conference Manager, Dr Christopher Latham, and the editors of this volume, Drs Jon Goss and Chris Ewels, who in turn wish to thank Dr Alexis Vlandas for his help proof reading the articles. We all wish the best of luck to Prof. Philomela Khomninou and her team in the organisation of EDS2012.

  4. Analysis and Design of a 3rd Order Velocity-Controlled Closed-Loop for MEMS Vibratory Gyroscopes

    PubMed Central

    Wu, Huan-ming; Yang, Hai-gang; Yin, Tao; Jiao, Ji-wei

    2013-01-01

    The time-average method currently available is limited to analyzing the specific performance of the automatic gain control-proportional and integral (AGC-PI) based velocity-controlled closed-loop in a micro-electro-mechanical systems (MEMS) vibratory gyroscope, since it is hard to solve nonlinear functions in the time domain when the control loop reaches to 3rd order. In this paper, we propose a linearization design approach to overcome this limitation by establishing a 3rd order linear model of the control loop and transferring the analysis to the frequency domain. Order reduction is applied on the built linear model's transfer function by constructing a zero-pole doublet, and therefore mathematical expression of each control loop's performance specification is obtained. Then an optimization methodology is summarized, which reveals that a robust, stable and swift control loop can be achieved by carefully selecting the system parameters following a priority order. Closed-loop drive circuits are designed and implemented using 0.35 μm complementary metal oxide semiconductor (CMOS) process, and experiments carried out on a gyroscope prototype verify the optimization methodology that an optimized stability of the control loop can be achieved by constructing the zero-pole doublet, and disturbance rejection capability (D.R.C) of the control loop can be improved by increasing the integral term. PMID:24051522

  5. Poly(2-oxazoline) based micelles with high capacity for 3rd generation taxoids: preparation, in vitro and in vivo evaluation.

    PubMed

    He, Zhijian; Schulz, Anita; Wan, Xiaomeng; Seitz, Joshua; Bludau, Herdis; Alakhova, Daria Y; Darr, David B; Perou, Charles M; Jordan, Rainer; Ojima, Iwao; Kabanov, Alexander V; Luxenhofer, Robert

    2015-06-28

    The clinically and commercially successful taxanes, paclitaxel and docetaxel suffer from two major drawbacks, namely their very low aqueous solubility and the risk of developing resistance. Here, we present a method that overcomes both drawbacks in a very simple manner. We formulated 3rd generation taxoids, able to avoid common drug resistance mechanisms with doubly amphiphilic poly(2-oxazoline)s (POx), a safe and highly efficient polymer for the formulation of extremely hydrophobic drugs. We found excellent solubilization of different 3rd generation taxoids irrespective of the drug's chemical structures with essentially quantitative drug loading and final drug to polymer ratios around unity. The small, highly loaded micelles with a hydrodynamic diameter of less than 100nm are excellently suited for parenteral administration. Moreover, a selected formulation with the taxoid SB-T-1214 is about one to two orders of magnitude more active in vitro than paclitaxel in the multidrug resistant breast cancer cell line LCC6-MDR. In contrast, in wild-type LCC6, no difference was observed. Using a q4d×4 dosing regimen, we also found that POx/SB-T-1214 significantly inhibits the growth of LCC6-MDR orthotropic tumors, outperforming commercial paclitaxel drug Taxol and Cremophor EL formulated SB-T-1214. PMID:25725361

  6. Effects of microinjection of various prostaglandins into the 3rd ventricle, median eminence and pituitary on plasma LH in rats.

    PubMed

    Jyujo, T; Sato, T; Hirono, M; Igarashi, M

    1976-02-01

    The effects of microinjection of PG'S (PGE1, E2, F2a) into the 3rd ventricle, median eminence (ME) and anterior pituitary on plasma LH in rats were investigated. Blood samples were obtained by jugular puncture before, and 10 and 45 min after the injection of PGS (50 or 100 mug), plasma LH was measured by radioimmunoassay. In the 3rd ventricle microinjection, PGE2 prodiced a significant rise in plasma LH. PGE1 and F2a did not significantly after plasma LH levels. In the median eminence, PGE2 and E1 produced a significant rise in plasma LH. PGF2a did not alter plasma LH levels. In the pituitary, PGE2 and E1 produced a significant rise in plasma LH. PGF2a did not alter plasma LH levels. These observations indicate that PGs act directly on the hypothalamic-pituitary axis, and that particular PG may be involved in the release of particular horomones from the hypothalamus and pituitary. PMID:1278119

  7. Analysis and design of a 3rd order velocity-controlled closed-loop for MEMS vibratory gyroscopes.

    PubMed

    Wu, Huan-ming; Yang, Hai-gang; Yin, Tao; Jiao, Ji-wei

    2013-01-01

    The time-average method currently available is limited to analyzing the specific performance of the automatic gain control-proportional and integral (AGC-PI) based velocity-controlled closed-loop in a micro-electro-mechanical systems (MEMS) vibratory gyroscope, since it is hard to solve nonlinear functions in the time domain when the control loop reaches to 3rd order. In this paper, we propose a linearization design approach to overcome this limitation by establishing a 3rd order linear model of the control loop and transferring the analysis to the frequency domain. Order reduction is applied on the built linear model's transfer function by constructing a zero-pole doublet, and therefore mathematical expression of each control loop's performance specification is obtained. Then an optimization methodology is summarized, which reveals that a robust, stable and swift control loop can be achieved by carefully selecting the system parameters following a priority order. Closed-loop drive circuits are designed and implemented using 0.35 μm complementary metal oxide semiconductor (CMOS) process, and experiments carried out on a gyroscope prototype verify the optimization methodology that an optimized stability of the control loop can be achieved by constructing the zero-pole doublet, and disturbance rejection capability (D.R.C) of the control loop can be improved by increasing the integral term. PMID:24051522

  8. Characterization of a 3rd Generation Lentiviral Vector Pseudotyped With Nipah Virus Envelope Proteins For Endothelial Cell Transduction

    PubMed Central

    Witting, Scott R.; Vallanda, Priya; Gamble, Aisha L.

    2013-01-01

    Lentiviruses are becoming progressively more popular as gene therapy vectors due to their ability to integrate into quiescent cells and recent clinical trial successes. Directing these vectors to specific cell types and limiting off-target transduction in vivo remains a challenge. Replacing the viral envelope proteins responsible for cellular binding, or pseudotyping, remains a common method to improve lentiviral targeting. Here, we describe the development of a high titer, 3rd generation lentiviral vector pseudotyped with Nipah virus fusion protein (NiV-F) and attachment protein (NiV-G). Critical to high titers was truncation of the cytoplasmic domains of both NiV-F and NiV-G. As known targets of wild-type Nipah virus, primary endothelial cells are shown to be effectively transduced by the Nipah pseudotype. In contrast, human CD34+ hematopoietic progenitors were not significantly transduced. Additionally, the Nipah pseudotype has increased stability in human serum compared to VSV pseudotyped lentivirus. These findings suggest that the use of Nipah virus envelope proteins in 3rd generation lentiviral vectors would be a valuable tool for gene delivery targeted to endothelial cells. PMID:23698741

  9. Membrane modification strategies for cryopreservation. pp 337-342. In: Willem F. Wolkers and Harriette Oldenhof (eds.). Cryopreservation and Freeze-Drying Protocls. 3rd ed.The Lab Protocol Series Methods in Molecular Biology.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Cell membranes can be modified using cyclodextrins loaded with lipids or unilamellar liposomes. Lipid choice can greatly influence the organization of the targeted membrane and result in a cell that is more capable of surviving cryopreservation due to altered membrane phase transition properties or ...

  10. Didactic Community Dentistry Curricula in U.S. Dental Schools.

    ERIC Educational Resources Information Center

    Cunningham, Marsha A.

    1987-01-01

    A national survey of predoctoral community dentistry faculty members provided ratings of importance for 32 community dentistry topics and information on clock hours of didactic instruction in each topic. (MSE)

  11. Recent advances in imaging technologies in dentistry

    PubMed Central

    Shah, Naseem; Bansal, Nikhil; Logani, Ajay

    2014-01-01

    Dentistry has witnessed tremendous advances in all its branches over the past three decades. With these advances, the need for more precise diagnostic tools, specially imaging methods, have become mandatory. From the simple intra-oral periapical X-rays, advanced imaging techniques like computed tomography, cone beam computed tomography, magnetic resonance imaging and ultrasound have also found place in modern dentistry. Changing from analogue to digital radiography has not only made the process simpler and faster but also made image storage, manipulation (brightness/contrast, image cropping, etc.) and retrieval easier. The three-dimensional imaging has made the complex cranio-facial structures more accessible for examination and early and accurate diagnosis of deep seated lesions. This paper is to review current advances in imaging technology and their uses in different disciplines of dentistry. PMID:25349663

  12. Recent advances in imaging technologies in dentistry.

    PubMed

    Shah, Naseem; Bansal, Nikhil; Logani, Ajay

    2014-10-28

    Dentistry has witnessed tremendous advances in all its branches over the past three decades. With these advances, the need for more precise diagnostic tools, specially imaging methods, have become mandatory. From the simple intra-oral periapical X-rays, advanced imaging techniques like computed tomography, cone beam computed tomography, magnetic resonance imaging and ultrasound have also found place in modern dentistry. Changing from analogue to digital radiography has not only made the process simpler and faster but also made image storage, manipulation (brightness/contrast, image cropping, etc.) and retrieval easier. The three-dimensional imaging has made the complex cranio-facial structures more accessible for examination and early and accurate diagnosis of deep seated lesions. This paper is to review current advances in imaging technology and their uses in different disciplines of dentistry. PMID:25349663

  13. Beginning the discussion of commercialism in dentistry.

    PubMed

    Boyd, Marcia A; Roth, Kathleen; Ralls, Stephen A; Chambers, David W

    2008-01-01

    There is increasing concern over commercialism in dentistry. Multiple factors contribute to this trend, which has the potential for fragmenting the profession, exacerbating the access issue, and eroding the public's confidence in dentistry. There are both positive and negative aspects of commercialism. Positive approaches for promoting oral health in the face of commercialism hold the greatest promise. The core theme in the recommendations from Ethics Summit on Commercialism is that competent, comprehensive, and continuous oral health care is appropriate and should be promoted to the American public. PMID:18293763

  14. Changing the education paradigm in pediatric dentistry.

    PubMed

    Ramos-Gomez, Francisco J

    2014-10-01

    Traditional curricula of pediatric dental residency programs have overemphasized restorative dentistry while failing to give adequate attention to early diagnosis, preventive disease management, risk assessment, cultural competency, advocacy, community partnerships and interprofessional education. The University of California, Los Angeles, Community Health and Advocacy Training Program in Pediatric Dentistry emphasizes these lesser-taught areas, integrating them within a structured education in classical restorative techniques and Commission on Dental Accreditation-approved standards, providing a diverse curriculum and preparing residents for practice in increasingly diverse communities. PMID:25345116

  15. The entrepreneurial role in primary care dentistry.

    PubMed

    Willcocks, S

    2012-03-01

    This paper explores the entrepreneurial role of dentists in primary care dentistry. It reviews the changing context of dentistry, not least the reforms being introduced by the health and social care bill. It suggests that this new context will reinforce the need to consider the business side of dental practice, in particular, the importance of quality, creativity and innovation, alongside the importance of meeting the needs of patients. An entrepreneurial approach will be required in order to sustain dental practice in an increasingly competitive environment. PMID:22402534

  16. Fibre-reinforced composites in restorative dentistry.

    PubMed

    Butterworth, Chris; Ellakwa, Ayman E; Shortall, Adrian

    2003-01-01

    Restorative dentistry is constantly evolving as a result of innovative treatment solutions based on new materials, treatment techniques and technologies, with composite materials being a prime example. The advent of fibre reinforcement has further increased the potential uses of composites within restorative dentistry. This paper discusses fibre types, structure and the physical properties of fibre-reinforced composites, in addition to outlining some of the potential clinical applications of this exciting group of materials, thus updating the reader on the new treatment possibilities offered by these developments. PMID:12955951

  17. USE OF DNA TECHNOLOGY IN FORENSIC DENTISTRY

    PubMed Central

    da Silva, Ricardo Henrique Alves; Sales-Peres, Arsenio; de Oliveira, Rogério Nogueira; de Oliveira, Fernando Toledo; Sales-Peres, Sílvia Helena de Carvalho

    2007-01-01

    The established importance of Forensic Dentistry for human identification, mainly when there is little remaining material to perform such identification (e.g., in fires, explosions, decomposing bodies or skeletonized bodies), has led dentists working with forensic investigation to become more familiar with the new molecular biology techniques. The currently available DNA tests have high reliability and are accepted as legal proofs in courts. This article presents a literature review referring to the main studies on Forensic Dentistry that involve the use of DNA for human identification, and makes an overview of the evolution of this technology in the last years, highlighting the importance of molecular biology in forensic sciences. PMID:19089123

  18. Earth's Volcanoes and their Eruptions; the 3rd edition of the Smithsonian Institution's Volcanoes of the World

    NASA Astrophysics Data System (ADS)

    Siebert, L.; Simkin, T.; Kimberly, P.

    2010-12-01

    The 3rd edition of the Smithsonian Institution’s Volcanoes of the World incorporates data on the world’s volcanoes and their eruptions compiled since 1968 by the Institution’s Global Volcanism Program (GVP). Published this Fall jointly by the Smithsonian and the University of California Press, it supplements data from the 1994 2nd edition and includes new data on the number of people living in proximity to volcanoes, the dominant rock lithologies at each volcano, Holocene caldera-forming eruptions, and preliminary lists of Pleistocene volcanoes and large-volume Pleistocene eruptions. The 3rd edition contains data on nearly 1550 volcanoes of known or possible Holocene age, including chronologies, characteristics, and magnitudes for >10,400 Holocene eruptions. The standard 20 eruptive characteristics of the IAVCEI volcano catalog series have been modified to include dated vertical edifice collapse events due to magma chamber evacuation following large-volume explosive eruptions or mafic lava effusion, and lateral sector collapse. Data from previous editions of Volcanoes of the World are also supplemented by listings of up to the 5 most dominant lithologies at each volcano, along with data on population living within 5, 10, 30, and 100 km radii of each volcano or volcanic field. Population data indicate that the most populated regions also contain the most frequently active volcanoes. Eruption data document lava and tephra volumes and Volcanic Explosivity Index (VEI) assignments for >7800 eruptions. Interpretation of VRF data has led to documentation of global eruption rates and the power law relationship between magnitude and frequency of volcanic eruptions. Data with volcanic hazards implications include those on fatalities and evacuations and the rate at which eruptions reach their climax. In recognition of the hazards implications of potential resumption of activity at pre-Holocene volcanoes, the 3rd edition includes very preliminary lists of Pleistocene volcanoes and large-volume Pleistocene eruptions, the latter in collaboration with the VOGRIPA project of Steve Sparks and colleagues. The GVP volcano and eruption data derive both from the retrospective perspective of the volcanological and other literature and documentation of contemporary eruptions and volcanic unrest in the Smithsonian’s monthly bulletin and Weekly Volcanic Activity Reports compiled since 2000 in collaboration with the USGS.

  19. An Investigation of the Relationship Between Retention in First Grade and Performance on High Stakes Tests in 3rd Grade

    PubMed Central

    Hughes, Jan N.; Chen, Qi; Thoemmes, Felix; Kwok, Oi-man

    2010-01-01

    The association between grade retention in first grade and passing the third grade state accountability tests, the Texas Assessment of Knowledge and Skills (TAKS) reading and math, was investigated in a sample of 769 students who were recruited into the study when they were in first grade. Of these 769 students, 165 were retained in first grade and 604 were promoted. Using propensity matching, we created five imputed datasets (average N=321) in which promoted and retained students were matched on 67 comprehensive covariates. Using GEE models, we obtained the association between retention and passing the 3rd grade TAKS reading and math tests. The positive association between retention and math scores was significant while the association was marginally significant for reading scores. PMID:20628547

  20. 3rd Tech DeltaSphere-3000 Laser 3D Scene Digitizer infrared laser scanner hazard analysis.

    SciTech Connect

    Augustoni, Arnold L.

    2005-02-01

    A laser hazard analysis and safety assessment was performed for the 3rd Tech model DeltaSphere-3000{reg_sign} Laser 3D Scene Digitizer, infrared laser scanner model based on the 2000 version of the American National Standard Institute's Standard Z136.1, for the Safe Use of Lasers. The portable scanner system is used in the Robotic Manufacturing Science and Engineering Laboratory (RMSEL). This scanning system had been proposed to be a demonstrator for a new application. The manufacture lists the Nominal Ocular Hazard Distance (NOHD) as less than 2 meters. It was necessary that SNL validate this NOHD prior to its use as a demonstrator involving the general public. A formal laser hazard analysis is presented for the typical mode of operation for the current configuration as well as a possible modified mode and alternative configuration.

  1. THE 3rd SCHIZOPHRENIA INTERNATIONAL RESEARCH SOCIETY CONFERENCE, 14-18 APRIL 2012, FLORENCE, ITALY: SUMMARIES OF ORAL SESSIONS

    PubMed Central

    Abbs, Brandon; Achalia, Rashmin M; Adelufosi, Adegoke O; Aktener, Ahmet Yiğit; Beveridge, Natalie J; Bhakta, Savita G; Blackman, Rachael K; Bora, Emre; Byun, MS; Cabanis, Maurice; Carrion, Ricardo; Castellani, Christina A; Chow, Tze Jen; Dmitrzak-Weglarz, M; Gayer-Anderson, Charlotte; Gomes, Felipe V; Haut, Kristen; Hori, Hiroaki; Kantrowitz, Joshua T; Kishimoto, Taishiro; Lee, Frankie HF; Lin, Ashleigh; Palaniyappan, Lena; Quan, Meina; Rubio, Maria D; Ruiz de Azúa, Sonia; Sahoo, Saddichha; Strauss, Gregory P; Szczepankiewicz, Aleksandra; Thompson, Andrew D; Trotta, Antonella; Tully, Laura M; Uchida, Hiroyuki; Velthorst, Eva; Young, Jared W; O’Shea, Anne; DeLisi, Lynn E.

    2013-01-01

    The 3rd Schizophrenia International Research Society Conference was held in Florence, Italy, April 14-18, 2012.and this year had as its emphasis, “The Globalization of Research”. Student travel awardees served as rapporteurs for each oral session and focused their summaries on the most significant findings that emerged and the discussions that followed. The following report is a composite of these summaries. We hope that it will provide an overview for those who were present, but could not participate in all sessions, and those who did not have the opportunity to attend, but who would be interested in an update on current investigations ongoing in the field of schizophrenia research. PMID:22910407

  2. Use of 2nd and 3rd Level Correlation Analysis for Studying Degradation in Polycrystalline Thin-Film Solar Cells

    SciTech Connect

    Albin, D. S.; del Cueto, J. A.; Demtsu, S. H.; Bansal, S.

    2011-03-01

    The correlation of stress-induced changes in the performance of laboratory-made CdTe solar cells with various 2nd and 3rd level metrics is discussed. The overall behavior of aggregated data showing how cell efficiency changes as a function of open-circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF) is explained using a two-diode, PSpice model in which degradation is simulated by systematically changing model parameters. FF shows the highest correlation with performance during stress, and is subsequently shown to be most affected by shunt resistance, recombination and in some cases voltage-dependent collection. Large decreases in Jsc as well as increasing rates of Voc degradation are related to voltage-dependent collection effects and catastrophic shunting respectively. Large decreases in Voc in the absence of catastrophic shunting are attributed to increased recombination. The relevance of capacitance-derived data correlated with both Voc and FF is discussed.

  3. Green Dentistry, A Metamorphosis Towards an Eco-Friendly Dentistry: A Short Communication

    PubMed Central

    Sharma, Rachna; Yadav, Lalita; Satpute, Pranali; Sharma, Vandana

    2014-01-01

    Dentistry is most importantly and foremost a healing profession. In today’s world, it is very necessary to understand the importance of being eco-friendly in every facet of our lives, including dental practice which has a huge impact on the environment due to the large amount of metallic waste generated by various dental procedures along with excessive use of water and electricity, which specifically emphasis the thrust to move towards ‘Green dentistry’. Green dentistry is an innovative way of dental practice which is environment friendly and at the same time conserves money and time by reducing waste, conserving energy and decreasing pollution with the use of latest techniques and procedures. Green dentistry therefore, protects the environment and mankind from the hazards of rapid urbanisation in developing countries. The authors wish to emphasize the practice of eco-friendly, green dentistry in a developing country like India which needs to conserve resources and curb environmental pollution. PMID:25177666

  4. Dentistry and Dental Hygiene Handbook. 1988 Edition.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Office of the Professions.

    The laws, rules and regulations of the New York State Education Department governing dentistry and dental hygiene practice in the state are presented. In addition, the requirements and procedures for obtaining licensure and first registration as a dentist and dental hygienist in New York are discussed. The following chapters are provided: (1)…

  5. Computerized implant-dentistry: Advances toward automation

    PubMed Central

    Gulati, Minkle; Anand, Vishal; Salaria, Sanjeev Kumar; Jain, Nikil; Gupta, Shilpi

    2015-01-01

    Advancements in the field of implantology such as three-dimensional imaging, implant-planning software, computer-aided-design/computer-aided-manufacturing (CAD/CAM) technology, computer-guided, and navigated implant surgery have led to the computerization of implant-dentistry. This three-dimensional computer-generated implant-planning and surgery has not only enabled accurate preoperative evaluation of the anatomic limitations but has also facilitated preoperative planning of implant positions along with virtual implant placement and subsequently transferring the virtual treatment plans onto the surgical phase via static (guided) or dynamic (navigated) systems aided by CAD/CAM technology. Computerized-implant-dentistry being highly predictable and minimally invasive in nature has also allowed implant placement in patients with medical comorbidities (e.g. radiation therapy, blood dyscrasias), in patients with complex problems following a significant alteration of the bony anatomy as a result of benign or malignant pathology of the jaws or trauma and in patients with other physical and emotional problems. With significant achievements accomplished in the field of computerized implant-dentistry, attempts are now been made toward complete automation of implant-dentistry. PMID:25810585

  6. A brief history of aerospace dentistry.

    PubMed

    Savage, D Keith

    2002-07-01

    In April 2000, the National Academy of Sciences Institute of Medicine (NAS/IOM) Committee on Space Medicine held a workshop under contract with the National Aeronautics and Space Administration (NASA) to explore "innovative terrestrial medical care." There was also a NAS/IOM panel held on "Space Dentistry: Maintaining Astronauts' Oral Health on Long Missions." Air Force Dental Officer Col. Shannon E. Mills chaired the dental committee. Many questions were raised but few answers were available. Prevention was emphasized with the hope that within twenty to thirty years there may be a number of astronaut candidates with no existing dental restorations and with optimum oral health. However, there remains the concern that trauma to teeth could occur within the confines of a zero gravity space capsule as crew members carry out their daily responsibilities. The possibility is evident considering the duration of a space flight to Mars and back could require up to three years. The dental concerns of a space mission are only a small part of a much larger team effort, however, it is one not to be overlooked. An historical review of dentistry's involvement with America's flight and space programs of the 20th Century would be prudent. Many of same questions asked today were addressed in the early days of aviation dentistry as it transitioned into aerospace dentistry. Any past research and experiences would help serve as a foundation to build upon. PMID:12125697

  7. Fourteen characteristics of effective leaders in dentistry.

    PubMed

    Christensen, Gordon J

    2004-01-01

    Leadership can be learned, especially through careful observation of effective leaders. Fourteen characteristics of effective leaders in the dental office and in organized dentistry are discussed. These include: positive mental attitude, faith, goals in life, organization, time management, interdependency and synergy, consistency, communication, self-renewal, empathy and humility, creativity, personal responsibility and drive, ability to say no, and charisma. PMID:15948488

  8. A Compendium of Objectives for Geriatric Dentistry.

    ERIC Educational Resources Information Center

    Kress, Gerard C. Jr.; Vidmar, Gordon C.

    1985-01-01

    Results of a survey of geriatric dentistry specialists concerning the competencies required of geriatric dentists and the relative importance of those skills in five settings (dental school, general practice residency, prosthodontic specialty programs, geriatric fellowship programs, and continuing education) are reported. (MSE)

  9. Dermatoxicology. 3rd edition

    SciTech Connect

    Marzulli, F.N.; Maibach, H.L.

    1987-01-01

    This book is a revision which updates many chapters to include advances in the field. Coverage includes: reproductive hazards from skin-absorbed chemicals; introductory information about skin hypersensitivity; discussion of the new developments in the area of eye irritation; methods of testing for contact hypersensitivity of the vagina. Partial Contents: Skin Structure, Function and Biochemistry; Clinical and Experimental Aspects of Cutaneous Irritation; Immunologic Aspects of Delayed and Immediate Skin Hypersensitivity; Contact Allergy: Predictive Testing in Humans; Light-Induced Dermal Toxicity: Effects on the Cellular and Molecular Level; Detection of Environmental Depigmenting Chemicals; Skin as a Route of Entry for Neurotoxic Substances.

  10. Edward (Ed) T. Schneider

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Research Pilot Edward T. Schneider is shown sitting in the cockpit of a McDonnell Douglas F/A-18 Hornet that was used in the High Angle-of-Attack Research Vehicle (HARV) program at the National Aeronautics and Space Administration's Ames - Dryden Flight Research Facility. When the aircraft arrived at the Dryden Facility in 1987, from the US Naval Air Test Center, Patuxent River, Maryland, it consisted of parts in crates. The aircraft crew made an airplane from those parts, and in doing so they took a 'sow's ear' and created a 'silk purse', thus the name on the side of the aircraft. Ed's helmet is from his time in the Navy. The design was taken from the Flag that is flown on the bow of a Navy ship, referred to as the Jack, and is navy blue with the 50 States being represented by the white stars. Ed arrived at the NASA Ames-Dryden Flight Research Facility (later renamed the Dryden Flight Research Center) on July 5, 1982, as a Navy Liaison Officer, becoming a NASA research pilot one year later. Ed was the project pilot for the F-18 High Angle-of-Attack program and later served as a project pilot for the F-15 aeronautical research aircraft, the NASA B-52 launch aircraft, and the SR-71 'Blackbird' aircraft. He served on active duty with the U.S. Navy from 1968 to 1983. Following squadron service he graduated from the U.S. Naval Test Pilot School, Patuxent River, Maryland, in 1973, and then served as an engineering test pilot, and test pilot school instructor at the Naval Air Test Center. Ed has been an active member of the Society of Experimental Test Pilots since 1974. He was made a Fellow of the Society in 1993 and served as its President in 1993/94. In 1996 he was awarded the NASA Exceptional Service Medal and the American Institute of Aeronautics and Astronautics' Chanute Flight Award. He retired as a NASA research pilot in September 2000.

  11. The 3rd Canadian Symposium on Hepatitis C Virus: Expanding care in the interferon-free era

    PubMed Central

    MacParland, Sonya A; Bilodeau, Marc; Grebely, Jason; Bruneau, Julie; Cooper, Curtis; Klein, Marina; Sagan, Selena M; Choucha, Norma; Balfour, Louise; Bialystok, Frank; Krajden, Mel; Raven, Jennifer; Roberts, Eve; Russell, Rodney; Houghton, Michael; Tyrrell, D Lorne; Feld, Jordan J

    2014-01-01

    Hepatitis C virus (HCV) currently infects approximately 250,000 individuals in Canada and causes more years of life lost than any other infectious disease in the country. In August 2011, new therapies were approved by Health Canada that have achieved higher response rates among those treated, but are poorly tolerated. By 2014/2015, short-course, well-tolerated treatments with cure rates >95% will be available. However, treatment uptake is poor due to structural, financial, geographical, cultural and social barriers. As such, ‘Barriers to access to HCV care in Canada’ is a crucial topic that must be addressed to decrease HCV disease burden and potentially eliminate HCV in Canada. Understanding how to better care for HCV-infected individuals requires integration across multiple disciplines including researchers, clinical services and policy makers to address the major populations affected by HCV including people who inject drugs, baby boomers, immigrants and Aboriginal and/or First Nations people. In 2012, the National CIHR Research Training Program in Hepatitis C organized the 1st Canadian Symposium on Hepatitis C Virus (CSHCV) in Montreal, Quebec. The 2nd CSHCV was held in 2013 in Victoria, British Columbia. Both symposia were highly successful, attracting leading international faculty with excellent attendance leading to dialogue and knowledge translation among attendees of diverse backgrounds. The current article summarizes the 3rd CSHCV, held February 2014, in Toronto, Ontario. PMID:25314353

  12. 3rd Quarter Transportation Report FY 2014: Radioactive Waste Shipments to and from the Nevada National Security Site (NNSS)

    SciTech Connect

    Gregory, Louis

    2014-09-20

    This report satisfies the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Field Office (NNSA/NFO) commitment to prepare a quarterly summary report of radioactive waste shipments to the Nevada National Security Site (NNSS) Radioactive Waste Management Complex (RWMC) at Area 5. There were no shipments sent for offsite treatment and returned to the NNSS this quarter. This report summarizes the 3rd quarter of Fiscal Year (FY) 2014 low-level radioactive waste (LLW) and mixed low-level radioactive waste (MLLW) shipments. This report also includes annual summaries for FY 2014 in Tables 4 and 5. Tabular summaries are provided which include the following: Sources of and carriers for LLW and MLLW shipments to and from the NNSS;  Number and external volume of LLW and MLLW shipments; Highway routes used by carriers; and Incident/accident data applicable to LLW and MLLW shipments. In this report shipments are accounted for upon arrival at the NNSS, while disposal volumes are accounted for upon waste burial. The disposal volumes presented in this report do not include minor volumes of non-radioactive materials that were approved for disposal. Volume reports showing cubic feet generated using the Low-Level Waste Information System may vary slightly due to differing rounding conventions.

  13. Organizational Support for the 3rd Summer Institute on Complex Plasmas, July 30 – August 8, 2012

    SciTech Connect

    Lopez, Jose L.

    2012-07-01

    This grant provided partial funds for American graduate students to attend the 3rd Graduate Summer Institute on Complex Plasmas, which was held from July 30 to August 8, 2012 at Seton Hall University in South Orange, New Jersey. The Graduate Summer Institute is a topical series of instructional workshops held bi-annually on the emerging field of complex plasmas that is jointly organized through a collaboration between American and German-European Union plasmas researchers. This specialized program brings together many of the world's leading researchers in the specialized area of complex plasmas, who freely provide instructional lectures and tutorials on the most recent research and discoveries done in this branch of plasma science. The partial funds provided by this grant helped support the travel and accommodation expenses of the participating American students and tutorial instructors. Partial funds further supported the travel and accommodation of three renown American plasma researchers that provided educational tutorials to the thirty-eight participating students from the United States, Europe, and Asia. The organized program afforded a unique opportunity for the participating American graduate students to learn about and engage more deeply in an area of plasma science that is not studied in any of the graduate educational curriculums provided by universities in the United States of America. The educational experience offered by this program provided the necessary knowledge needed by future American plasma researchers to keep the national plasma research effort on the cutting-edge and keep the national plasma community as a global leader.

  14. Changing motor patterns of the 3rd axillary muscle activities associated with longitudinal control in freely flying hawkmoths.

    PubMed

    Ando, Noriyasu; Kanzaki, Ryohei

    2004-02-01

    The 3rd axillary muscles (3AXMs) in the mesothorax in hawkmoths are direct flight muscles and pull forewings back along to the body axis. The 3AXMs are regarded as steering muscles because of their changeable activities during turning flight under tethered conditions. We investigated activities of the upper unit of the 3AXMs during free flight with a micro-telemetry device and captured body and wing movements by high-speed cameras. The 3AXM was activated with 1 to 3 spikes per each wingbeat cycle but sometimes ceased to fire. The phase of the onset of the activities was, even though it was variable, close to the phase of the elevator muscle activities. Therefore the upper unit of the 3AXM activities would affect upstroke properties phasically including wing retractions. We focused on longitudinal flight control and identified a correlation between the phase of the 3AXM and body pitch angle, which is important kinematical parameter for longitudinal control in insect flight. The phasic changes of the 3AXM activities would support quick changes in longitudinal control. PMID:14993822

  15. [The Original Formulation for Toso-shu (Tusujiu), Created by the 3rd Century Chinese Physician, Hua Tuo].

    PubMed

    Mouri, Chika; Mikage, Masayuki

    2015-01-01

    The original formulation for "Tusujiu," which Japanese people still consume on the morning of January 1st, was created by Hua Tuo, but has not been studied in detail. The book Huatuo Shenyi Bizhuan, found in 1918, describes a concoction, "Biyijiu," that shows great similarity to the current Tusujiu; the ingredients for Biyijiu being rhubarb, atractylodes rhizome, cinnamon bark, platycodon root, zanthoxylum fruit, processed aconite root and smilax rhizome. The procedures for preparing and drinking it are to "pound the ingredients and then put them into a silk bag dyed with madder. During the daytime of the last day of the year, hang the bag in a well to soften the powder. Take the bag out early in the morning of the next day, the first day of the year. Heat the bag in fermented liquor until simmering. Drink the liquid with all family members, doing so while facing east. If one person drinks it, there will be no disease in the family. If the whole family drinks it, there will be no disease in their neighborhood in an area of one square 'li'. In this study, to determine the original formulation for Tusujiu, we examined a number of ancient medical texts from the 3rd to the 13th century that discuss Biyijiu and Tusujiu. As a result, we concluded that "Biyijiu" is likely to be the original formulation developed by Hua Tuo. PMID:26427101

  16. Development of Partially-Coherent Wavefront Propagation Simulation Methods for 3rd and 4th Generation Synchrotron Radiation Sources.

    SciTech Connect

    Chubar O.; Berman, L; Chu, Y.S.; Fluerasu, A.; Hulbert, S.; Idir, M.; Kaznatcheev, K.; Shapiro, D.; Baltser, J.

    2012-04-04

    Partially-coherent wavefront propagation calculations have proven to be feasible and very beneficial in the design of beamlines for 3rd and 4th generation Synchrotron Radiation (SR) sources. These types of calculations use the framework of classical electrodynamics for the description, on the same accuracy level, of the emission by relativistic electrons moving in magnetic fields of accelerators, and the propagation of the emitted radiation wavefronts through beamline optical elements. This enables accurate prediction of performance characteristics for beamlines exploiting high SR brightness and/or high spectral flux. Detailed analysis of radiation degree of coherence, offered by the partially-coherent wavefront propagation method, is of paramount importance for modern storage-ring based SR sources, which, thanks to extremely small sub-nanometer-level electron beam emittances, produce substantial portions of coherent flux in X-ray spectral range. We describe the general approach to partially-coherent SR wavefront propagation simulations and present examples of such simulations performed using 'Synchrotron Radiation Workshop' (SRW) code for the parameters of hard X-ray undulator based beamlines at the National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory. These examples illustrate general characteristics of partially-coherent undulator radiation beams in low-emittance SR sources, and demonstrate advantages of applying high-accuracy physical-optics simulations to the optimization and performance prediction of X-ray optical beamlines in these new sources.

  17. Effects of using relaxation breathing training to reduce music performance anxiety in 3rd to 6th graders.

    PubMed

    Su, Yu-Huei; Luh, Jer-Junn; Chen, Hsin-I; Lin, Chao-Chen; Liao, Miin-Jiun; Chen, Heng-Shuen

    2010-06-01

    The current study examined the effects of applying relaxation breathing training (RBT) as a means to reduce music performance anxiety (MPA) in young, talented musicians. A group of 59 young musicians from 3rd to 6th grade participated in this study, and all of them started RBT twice a week for 2 months prior to the examination. Four tests--2 mos, 1 mos, half an hour and 5 min before the examination--were conducted to examine the level of MPA after the application of RBT. Results show that the degree of MPA 5 min before the trial was lower than the degree of performance anxiety half an hour before the jury (t = -3.683, p < 0.01), which indicated that the RBT was associated with a decrease in MPA. Although a series of RBT exercises was applied, results indicated that when approaching the date of examination, the degree of performance anxiety still increased and reached its maximum half an hour before the jury. The recommendation for future studies is to combine the application of RBT with other methods to expand its effect in reducing MPA. PMID:20795337

  18. Evaluation of a model of dissertation supervision for 3rd year B.Sc. undergraduate nursing students.

    PubMed

    Scholefield, Donna; Cox, Georgina

    2016-03-01

    All English universities now offer an all degree undergraduate nursing programme. Many currently use an individual supervision model to support final year dissertation students, but with increased numbers and limited resources new models of supervision are needed. This study evaluated a mixed (group and individual) model of dissertation supervision to determine its effectiveness for a large group of undergraduate nursing students. A sample of 3rd year students and their supervisors were selected from one large university. An evaluation survey was conducted using anonymous internet-based questionnaires and focus groups. The data was analysed using Survey Monkey, SPSS and thematic analysis. A 51% (n = 56/110) response rate (students) and 65% (n = 24/37) for supervisors was obtained. The majority of students and supervisors were satisfied with the new model. There was a mixed response to the group workshops and supervision groups. Three themes emerged from the qualitative data: engaging with the process, motivation to supervise and valuing the process. The supervision process is a struggle but both parties gained considerably from going through the process. In conclusion, a mixed model of supervision together with a range of other learning resources can be an effective approach in supporting students through the dissertation process. PMID:26700648

  19. To keep the catch - that is the question: a personal account of the 3rd Annual EULAR Congress, Stockholm.

    PubMed

    Wollheim, Frank A

    2002-01-01

    The 3rd Annual EULAR Congress, held in Stockholm on 12-15 June 2002, had a turnout of 8300 delegates, almost identical to last year's record attendance level in Prague. The venue was close to ideal, allowing ample space for poster sessions in the exhibition hall. The manned poster sessions were well attended, even on the last day of the Congress. The numerous invited speakers represented the world's elite, allowing the staging of excellent state-of-the-art podium sessions. The aim of attracting the young scientific community was partly achieved, but individual delegates' dependence on industry sponsorship poses potential problems. The organization was a big improvement compared to that of the two previous congresses. Approximately 1800 abstracts were submitted, an increase of 50%, resulting in a higher quality of accepted abstracts. The satellite symposia held every morning and late afternoon were well attended; thus, industry exposure of new products, both in podium sessions and at the exhibitions, was well accommodated. The Annual EULAR Congress consolidates its position as one of the two most important annual congresses of rheumatology, but EULAR economy and commercial aspects are still too dominant in relation to science. PMID:12223107

  20. Efficiency Improvement of Dentistry Clinics: Introducing an Intervening Package for Dentistry Clinics, Isfahan, Iran

    PubMed Central

    Alaghemandan, Hamed; Yarmohammadian, Mohammad H.; Khorasani, Elahe; Rezaee, Sobhan

    2014-01-01

    Background: In Isfahan, the second metropolitan in Iran, there are 1448 dentistry treatment centers that most of them are inefficient. Today, efficiency is the most important issue in health care centers as well as dentistry clinics. The goal of this research is to investigate the affordability and efficiency of dentistry clinics in Isfahan province, Iran. Methods: The current work is a quantitative research, designed in three methodological steps, including two surveys and experimental studies, for understanding current deficiencies of Iranian dentistry clinics. First, we ran a survey. Then, we analyzed the results of the questionnaires which guided us to find a particular intervening package to improve the efficiency of the clinics. At the second step, we chose an inefficient clinic named Mohtasham (Iran, Isfahan) to evaluate our intervening package. Results: Based on what the interviewees answered, we mention the most important issues to be considered for improving the efficiency of dental clinics in Isfahan. By considering mentioned problematic issues, an intervening package was designed. This intervening package was applied in Mohtasham clinic, since June 2010. It improved the clinic's income from 16328 US$ with 4125 clients in 2010, to 420,000 US$ with 14784 patients in 2012. Conclusions: The proposed intervening package changed this clinic to an efficient and economic one. Its income increased 5.08 times and its patient's numbers grew 4.01 times simultaneously. In other words, Mohtasham's experience demonstrates the reliability of the package and its potentiality to be applied in macro level to improve other dentistry clinics. PMID:24627744

  1. The history and importance of aeronautic dentistry.

    PubMed

    Rai, Balwant; Kaur, Jasdeep

    2011-06-01

    Current projected missions to Mars will require 18 to 24 months of exposure to microgravity conditions, which might have serious effects on human physiology, including that of the oral cavity. Very few studies have been published on the effect of microgravity on the oral cavity, although it has been reported that microgravity increases the prevalence of periodontitis, dental caries, bone loss and fracture in the jaw bone, pain and numbness in teeth and oral cavity tissue, salivary duct stones, and oral cancer. Aeronautic dentistry is a new field, so further study of the effects of microgravity are required. In this article, we review the role of aeronautic dentistry in space missions and offer our recommendations for the future growth of this field. PMID:21712617

  2. Propolis in dentistry and oral cancer management.

    PubMed

    S, Vagish Kumar L

    2014-06-01

    Propolis, known as bee glue, is a wax-cum-resin substance, which is created out of a mix of buds from some trees with the substance secreted from the bee's glands. Its diverse chemical content is responsible for many valuable properties. Multiple applications of propolis have been studied and described in detail for centuries. However, currently available information on propolis is scarce. A literature search in the PubMed database was performed for English language articles, using the search terms propolis, oral health, dentistry, and oral cancer; no restrictions were used for publication dates. The aim of the article was to review propolis and its applications in dentistry including oral cancer. PMID:25006559

  3. Nanotechnology in dentistry: prevention, diagnosis, and therapy

    PubMed Central

    Abou Neel, Ensanya Ali; Bozec, Laurent; Perez, Roman A; Kim, Hae-Won; Knowles, Jonathan C

    2015-01-01

    Nanotechnology has rapidly expanded into all areas of science; it offers significant alternative ways to solve scientific and medical questions and problems. In dentistry, nanotechnology has been exploited in the development of restorative materials with some significant success. This review discusses nanointerfaces that could compromise the longevity of dental restorations, and how nanotechnolgy has been employed to modify them for providing long-term successful restorations. It also focuses on some challenging areas in dentistry, eg, oral biofilm and cancers, and how nanotechnology overcomes these challenges. The recent advances in nanodentistry and innovations in oral health-related diagnostic, preventive, and therapeutic methods required to maintain and obtain perfect oral health, have been discussed. The recent advances in nanotechnology could hold promise in bringing a paradigm shift in dental field. Although there are numerous complex therapies being developed to treat many diseases, their clinical use requires careful consideration of the expense of synthesis and implementation. PMID:26504385

  4. Application of Calcium Phosphate Materials in Dentistry

    PubMed Central

    Al-Sanabani, Jabr S.; Al-Sanabani, Fadhel A.

    2013-01-01

    Calcium phosphate materials are similar to bone in composition and in having bioactive and osteoconductive properties. Calcium phosphate materials in different forms, as cements, composites, and coatings, are used in many medical and dental applications. This paper reviews the applications of these materials in dentistry. It presents a brief history, dental applications, and methods for improving their mechanical properties. Notable research is highlighted regarding (1) application of calcium phosphate into various fields in dentistry; (2) improving mechanical properties of calcium phosphate; (3) biomimetic process and functionally graded materials. This paper deals with most common types of the calcium phosphate materials such as hydroxyapatite and tricalcium phosphate which are currently used in dental and medical fields. PMID:23878541

  5. Going green with eco-friendly dentistry.

    PubMed

    Avinash, Bhagyalakshmi; Avinash, B S; Shivalinga, B M; Jyothikiran, S; Padmini, M N

    2013-01-01

    Eco-friendly dentistry is currently transforming the medical and dental field to decrease its affect on our natural environment and reduce the amount of waste being produced. Eco-friendly dentistry uses a sustainable approach to encourage dentists to implement new strategies to try and reduce the energy being consumed and the large amount of waste being produced by the industry. Many reasonable, practical and easy alternatives do exist which would reduce the environmental footprint of a dental office were it to follow the 'green' recommendations. Dentist should take a leading role in the society by implementing 'green' initiatives to lessen their impact on the environment. This article provides a series of 'green' recommendations that dentists around the world can implement to become a leading Stewards of the environment. PMID:24309364

  6. Nanotechnology in dentistry: Present and future

    PubMed Central

    Bhardwaj, Archana; Bhardwaj, Abhishek; Misuriya, Abhinav; Maroli, Sohani; Manjula, S; Singh, Arvind Kumar

    2014-01-01

    Nanotechnology is the manipulation of matter on the molecular and atomic levels. It has the potential to bring enormous changes into the fields of medicine and dentistry. A day may soon come when nanodentistry will succeed in maintaining near-perfect oral health through the aid of nanorobotics, nanomaterials and biotechnology. However, as with all developments, it may also pose a risk for misuse. Time, economical and technical resources, and human needs will determine the direction this revolutionizing development may take. This article reviews the current status and the potential clinical applications of nanotechnology, nanaomedicine and nanodentistry. How to cite the article: Bhardwaj A, Bhardwaj A, Misuriya A, Maroli S, Manjula S, Singh AK. Nanotechnology in dentistry: Present and future. J Int Oral Health 2013;6(1):121-6. PMID:24653616

  7. The impact of managed care in dentistry.

    PubMed

    Clouse, H R

    1999-01-01

    Managed care plans attempt to control health care expenditures aggressively. These plans directly influence access to medical care and the type, level, and frequency of care rendered. As a result, hospital stays are reduced, focus shifts from inpatient to outpatient care, and patients are responsible for a larger share of health care costs. Dentistry is not immune from the impact of managed care. The attractiveness of the dental market has drawn many managed care organizations, insurers, and entrepreneurs to encourage dentists to participate in a wide variety of managed care programs. However, the delivery of dental care differs markedly in many respects from that of medical care. Therefore, many of the cost saving aspects of managed care that have been so successful in medicine may not result in similar cost savings in dentistry. PMID:10687502

  8. Periosteum: A Highly Underrated Tool in Dentistry

    PubMed Central

    Mahajan, Ajay

    2012-01-01

    The ultimate goal of any dental treatment is the regeneration of lost tissues and alveolar bone. Under the appropriate culture conditions, periosteal cells secrete extracellular matrix and form a membranous structure. The periosteum can be easily harvested from the patient's own oral cavity, where the resulting donor site wound is invisible. Owing to the above reasons, the periosteum offers a rich cell source for bone tissue engineering; hence, the regenerative potential of periosteum is immense. Although the use of periosteum as a regenerative tool has been extensive in general medical field, the regenerative potential of periosteum is highly underestimated in dentistry; therefore, the present paper reviews the current literature related to the regenerative potential of periosteum and gives an insight to the future use of periosteum in dentistry. PMID:21961003

  9. Nanotechnology in dentistry: Present and future.

    PubMed

    Bhardwaj, Archana; Bhardwaj, Abhishek; Misuriya, Abhinav; Maroli, Sohani; Manjula, S; Singh, Arvind Kumar

    2014-02-01

    Nanotechnology is the manipulation of matter on the molecular and atomic levels. It has the potential to bring enormous changes into the fields of medicine and dentistry. A day may soon come when nanodentistry will succeed in maintaining near-perfect oral health through the aid of nanorobotics, nanomaterials and biotechnology. However, as with all developments, it may also pose a risk for misuse. Time, economical and technical resources, and human needs will determine the direction this revolutionizing development may take. This article reviews the current status and the potential clinical applications of nanotechnology, nanaomedicine and nanodentistry. How to cite the article: Bhardwaj A, Bhardwaj A, Misuriya A, Maroli S, Manjula S, Singh AK. Nanotechnology in dentistry: Present and future. J Int Oral Health 2013;6(1):121-6. PMID:24653616

  10. Propolis in Dentistry and Oral Cancer Management

    PubMed Central

    S., Vagish Kumar L.

    2014-01-01

    Propolis, known as bee glue, is a wax-cum-resin substance, which is created out of a mix of buds from some trees with the substance secreted from the bee's glands. Its diverse chemical content is responsible for many valuable properties. Multiple applications of propolis have been studied and described in detail for centuries. However, currently available information on propolis is scarce. A literature search in the PubMed database was performed for English language articles, using the search terms propolis, oral health, dentistry, and oral cancer; no restrictions were used for publication dates. The aim of the article was to review propolis and its applications in dentistry including oral cancer. PMID:25006559

  11. Diagnostic Applications of Saliva in Dentistry

    PubMed Central

    AR, Prabhakar; Gulati, Akanksha; Mehta, Deepak; Sugandhan, S

    2009-01-01

    Background: The use of saliva to identify individuals with disease and to follow the progress of the affected individual has attracted the attention of numerous investigators. Its noninvasive method of collection, simplicity, and cost effectiveness make it a useful tool not only to the general practitioner but also to the pediatric dentist. Aim: The aim of this paper is to provide the clinician with a comprehensive review of the diagnostic uses of saliva in dentistry. PMID:25206116

  12. Laser in dentistry: Biostimulation and surgery

    NASA Astrophysics Data System (ADS)

    Barzè, Franco; Palmieri, Beniamino; Scalise, Lorenzo; Rottigni, Valentina

    2012-09-01

    Laser therapy has achieved an important rule in cosmetic dentistry especially in the treatment of several complications such as leukoplakia, oral lichen planus, glossitis, oral mucositis, labial herpes virus, stomatitis, frenulum and oral hemangioma. In our study we enrolled 40 patients affected by these diseases to treat them with a new infrared dental laser demonstrating that it is extremely safe and effective in pain and postoperative discomforts reduction.

  13. Benefits of Aloe vera in dentistry

    PubMed Central

    Mangaiyarkarasi, S. P.; Manigandan, T.; Elumalai, M.; Cholan, Priyanka K.; Kaur, Roopam Pal

    2015-01-01

    Aloe vera (Aloe barbadensis) is a plant that belongs to Liliaceae family. The name Aloe derives from the Arabic word “Alloeh” meaning shining bitter substance while “vera” in Latin means true. It contains various minerals and vitamins. It has got various properties such as immunomodulatory, antiviral and antiinflammatory in nature. A. vera can play a significant role in dentistry in treatment of lichen planus, oral submucous fibrosis, recurrent aphthous stomatitis, alveolar osteitis, periodontitis, etc. PMID:26015726

  14. Prevalence of dental caries in dentistry students.

    PubMed

    Pavleova, G; Vesela, S; Stanko, P

    2015-01-01

    The study evaluates dental caries prevalence in dentistry students. They represent a sample of individuals with good dental status, socio-economical level and access to dental care. The values of teeth number with decay and filling and values of surfaces of teeth with decay and filling indices in group with lower caries incidence give the information as to what could be achieved by systemic care and prevention of dental caries in whole population (Tab. 4. Ref. 25). PMID:25665473

  15. Benefits of Aloe vera in dentistry.

    PubMed

    Mangaiyarkarasi, S P; Manigandan, T; Elumalai, M; Cholan, Priyanka K; Kaur, Roopam Pal

    2015-04-01

    Aloe vera (Aloe barbadensis) is a plant that belongs to Liliaceae family. The name Aloe derives from the Arabic word "Alloeh" meaning shining bitter substance while "vera" in Latin means true. It contains various minerals and vitamins. It has got various properties such as immunomodulatory, antiviral and antiinflammatory in nature. A. vera can play a significant role in dentistry in treatment of lichen planus, oral submucous fibrosis, recurrent aphthous stomatitis, alveolar osteitis, periodontitis, etc. PMID:26015726

  16. Geriatric dentistry--meet the need.

    PubMed

    Issrani, Rakhi; Ammanagi, Renuka; Keluskar, Vaishali

    2012-06-01

    Geriatric dentistry or gerodontics is the delivery of dental care to older adults involving the diagnosis, prevention, and treatment of problems associated with normal ageing and age-related diseases as part of an inter-disciplinary team with other health care professionals. Geriatric health is an ignored and under-explored area worldwide. Oral health reflects overall well being for the elderly population. Conversely, elderly patients are more predisposed to oral conditions due to age-related systemic diseases and functional changes. The major barriers to practising geriatric dentistry are the lack of trained faculty members, a crowded curriculum and monetary concerns. For successful treatment, the practitioner must adopt a humanitarian approach and develop a better understanding of the feelings and attitudes of the elderly. Prevention and early intervention strategies must be formulated to reduce the risk of oral diseases in this population. In future, dental professionals must have a proper understanding of the magnitude of the services to be provided to the elderly. This could only be realised through an education programme in geriatric dentistry, which should be started without further delay. This article hence sets out the objectives, needs, present scenario, strategies and types of dental treatment required by the elderly population. PMID:22612827

  17. YouTube, dentistry, and dental education.

    PubMed

    Knösel, Michael; Jung, Klaus; Bleckmann, Annalen

    2011-12-01

    The objective of this study was to systematically assess the informational value, intention, source, and bias of videos related to dentistry available on the video-sharing Internet platform YouTube. YouTube (www.youtube.com) was searched for videos related to dentistry, using the system-generated sorts "by relevance" and "most viewed" and two categories (All and Education). Each of the first thirty results was rated by two assessors filling out a questionnaire for each (total: 120). The data were subjected to statistical analysis using Cohen's kappa, Pearson's correlation coefficient tau, Mann-Whitney U-tests, and a nonparametric three-way ANOVA, including an analysis of the interaction between the sorting and category effect, with an α-level of 5 percent. The scan produced 279,000 results in the category All and 5,050 in the category Education. The analysis revealed a wide variety of information about dentistry available on YouTube. The purpose of these videos includes entertainment, advertising, and education. The videos classified under Education have a higher degree of usefulness and informational value for laypersons, dental students, and dental professionals than those found in a broader search category. YouTube and similar social media websites offer new educational possibilities that are currently both underdeveloped and underestimated in terms of their potential value. Dentists and dental educators should also recognize the importance of these websites in shaping public opinion about their profession. PMID:22184594

  18. [The rise and development of general dentistry in China].

    PubMed

    Liu, H C

    2016-02-01

    General dentistry is an important part of the dental medicine and general dentists and general dentistry form the basis of clinical dental medicine. China's general dentistry has a long history, which started as an independent specialist in the 1990s. At present, the Chinese general dental medicine has received more and more attention as an independent profession. General dental medical model has been rapidly developed in the general hospital department of dentistry, private practice and community dentistry institutions, dental specialist hospitals and so on. In this paper, we will review the rise and development of China's general dentistry, and report its theoretical characteristics, institutional framework, academic progress, member development report, and look forward to its development in the future. PMID:26926188

  19. A new dimension to conservative dentistry: Air abrasion

    PubMed Central

    Hegde, Vivek S; Khatavkar, Roheet A

    2010-01-01

    Air abrasion dentistry has evolved over a period of time from a new concept of an alternative means of cavity preparation to an essential means of providing a truly conservative preparation for preservation of a maximal sound tooth structure. The development of bonded restorations in combination with air abrasion dentistry provides a truly minimal intervention dentistry. This article reviews the development of air abrasion, its clinical uses, and the essential accessories required for its use. PMID:20582212

  20. Classification of biliary tract cancers established by the Japanese Society of Hepato-Biliary-Pancreatic Surgery: 3(rd) English edition.

    PubMed

    Miyazaki, Masaru; Ohtsuka, Masayuki; Miyakawa, Shuichi; Nagino, Masato; Yamamoto, Masakazu; Kokudo, Norihiro; Sano, Keiji; Endo, Itaru; Unno, Michiaki; Chijiiwa, Kazuo; Horiguchi, Akihiko; Kinoshita, Hisafumi; Oka, Masaaki; Kubota, Keiichi; Sugiyama, Masanori; Uemoto, Shinji; Shimada, Mitsuo; Suzuki, Yasuyuki; Inui, Kazuo; Tazuma, Susumu; Furuse, Junji; Yanagisawa, Akio; Nakanuma, Yasuni; Kijima, Hiroshi; Takada, Tadahiro

    2015-03-01

    The 3(rd) English edition of the Japanese classification of biliary tract cancers was released approximately 10 years after the 5(th) Japanese edition and the 2(nd) English edition. Since the first Japanese edition was published in 1981, the Japanese classification has been in extensive use, particularly among Japanese surgeons and pathologists, because the cancer status and clinical outcomes in surgically resected cases have been the main objects of interest. However, recent advances in the diagnosis, management and research of the disease prompted the revision of the classification that can be used by not only surgeons and pathologists but also by all clinicians and researchers, for the evaluation of current disease status, the determination of current appropriate treatment, and the future development of medical practice for biliary tract cancers. Furthermore, during the past 10 years, globalization has advanced rapidly, and therefore, internationalization of the classification was an important issue to revise the Japanese original staging system, which would facilitate to compare the disease information among institutions worldwide. In order to achieve these objectives, the new Japanese classification of the biliary tract cancers principally adopted the 7(th) edition of staging system developed by the International Union Against Cancer (UICC) and the American Joint Committee on Cancer (AJCC). However, because there are some points pending in these systems, several distinctive points were also included for the purpose of collection of information for the future optimization of the staging system. Free mobile application of the new Japanese classification of the biliary tract cancers is available via http://www.jshbps.jp/en/classification/cbt15.html. PMID:25691463

  1. When should orthostatic blood pressure changes be evaluated in elderly: 1st, 3rd or 5th minute?

    PubMed

    Soysal, Pinar; Aydin, Ali Ekrem; Koc Okudur, Saadet; Isik, Ahmet Turan

    2016-01-01

    Detection of orthostatic hypotension (OH) is very important in geriatric practice, since OH is associated with mortality, ischemic stroke, falls, cognitive failure and depression. It was aimed to determine the most appropriate time for measuring blood pressure in transition from supine to upright position in order to diagnose OH in elderly. Comprehensive geriatric assessment (CGA) including Head up Tilt Table (HUT) test was performed in 407 geriatric patients. Orthostatic changes were assessed separately for the 1st, 3rd and 5th minutes (HUT1, HUT3 and HUT5, respectively) taking the data in supine position as the basis. The mean age, recurrent falls, presence of dementia and Parkinson's disease, number of drugs, alpha-blocker and anti-dementia drug use, and fasting blood glucose levels were significantly higher in the patients with versus without OH; whereas, albumin and 25-hydroxy vitamin D levels were significantly lower (p<0.05). However, different from HUT3 and HUT5, Charlson Comorbidity Index and the prevalence of diabetes mellitus were higher, the use of antidiabetics, antipsychotics, benzodiazepine, opioid and levodopa were more common (p<0.05). Statistical significance of the number of drugs and fasting blood glucose level was prominent in HUT1 as compared to HUT3 (p<0.01, p<0.05). Comparison of the patients that had OH only in HUT1, HUT3or HUT5 revealed no difference in terms of CGA parameters. These results suggests that orthostatic blood pressure changes determined at the 1st minute might be more important for geriatric practice. Moreover, 1st minute measurement might be more convenient in the elderly as it requires shorter time in practice. PMID:27077324

  2. Time-Dependent 5th Order Bands in Nominally 3rd Order 2D IR Vibrational Echo Spectra

    PubMed Central

    Thielges, Megan C.; Fayer, Michael D.

    2011-01-01

    Progress in the field of 2D IR vibrational spectroscopy has been bolstered by the production of intense mid-IR laser pulses. As higher energy pulses are employed, a concomitant increase occurs in the likelihood of 5th order contributions to the 2D IR spectra. We report the appearance of 5th order signals in 2D IR spectra of CO bound to the active site of the enzyme cytochrome P450cam with the substrate norcamphor. Two bands with novel time dependences, one on the diagonal and one off-diagonal, are not accounted for by normal 3rd order interactions. These bands are associated with v = 1 to v = 2 vibrational transition frequency. Both bands decay to zero and then grow back in with opposite sign. The diagonal band is positive at short time, decays to zero, reappears with negative sign, before eventually decaying to zero. The off-diagonal band is negative at short time, decays to zero and reappears positive, and then decays to zero. The appearance and time dependence of these bands are characterized. Understanding these 5th order bands is useful because they may be misidentified with time dependent bands that arise from other processes, such as chemical exchange, vibrational coupling, or energy transfer. The presence and unusual time dependences of the 5th order bands are reproduced with model calculations that account for the fact that vibrational relaxation from the v = 2 to 1 level is approximately a factor of two faster than from the v = 1 to 0 level. PMID:21648438

  3. Rebooting the EdD

    ERIC Educational Resources Information Center

    Wergin, Jon F.

    2011-01-01

    In this essay, Jon Wergin reminds readers of the philosophical and historical foundations of the doctor of education (EdD) degree. He argues that the EdD should be based, in large part, on John Dewey's progressive ideals of democratization and Paulo Freire's concepts of emancipatory education. Drawing on theories of reflective practice,…

  4. Prevalence and Difficulty Index Associated with the 3rd Mandibular Molar Impaction among Malaysian Ethnicities: A Clinico-Radiographic Study

    PubMed Central

    Mahdey, Haydar Majeed; Wei, Myint

    2015-01-01

    Background The mandibular third molars (3Mms) are the most common impacted teeth in the human dentition and their prevalence ranges from 27-68.8% in various parts of the world. The assessment of surgical difficulty of 3Mms extraction helps in better formulation of treatment plan by minimizing postoperative complications. Objectives The aim of this retrospective study was to investigate the prevalence and pattern of 3Mm impaction in patients between 20-44-year-old among Malaysian’s ethnicities attending Oral Health Center/ SEGi University, Faculty of dentistry. Materials and Methods This study reviewed 1249 orthopantomograms (OPGs) of subjects aged 20 to 44 years of three Malaysian ethnic groups. Of the study population 918 OPGs were considered for the study. Patient’s details include age, gender and ethnicity were extracted from the patient’s clinical record and all details related to impaction were obtained from patient’s panoramic radiograph that was individually examined by two investigators. The data collected was statistically analysed using SPSS 16. Results This study found that Chinese female recorded the highest number of patients with “very difficult” category of impacted mandibular third molars. The most common age group involved was 20-24 years, mesioangular impaction, deep occlusal level and no ramus space for impacted mandibular third molars (3ms) were the most common findings observed. Conclusion The present study suggests that predicting the level of difficulty preoperatively for impacted 3m surgery will help in formulating the better treatment plan, thereby minimizing the postoperative complication for the ultimate benefit of the patient. PMID:26501016

  5. "Elderly Deafblindness." Proceedings of the European Conference of Deafblind International's Acquired Deafblindness Network (3rd, Marcelli di Numana, Italy, October 2-7, 1998).

    ERIC Educational Resources Information Center

    Deafblind International, London (England).

    This text includes all of the plenary presentations from the 3rd European Conference of Deafblind International's Acquired Deafblindness Network. This international conference was the first to focus specifically on older people with dual sensory impairment. Presentations addressed the awareness of the needs of older people with deafblind or dual…

  6. The Relationship between Perceived and Ideal Body Size and Body Mass Index in 3rd-Grade Low Socioeconomic Hispanic Children

    ERIC Educational Resources Information Center

    Fisher, Allison; Lange, Mary Anne; Young-Cureton, Virginia; Canham, Daryl

    2005-01-01

    Very little is known about body satisfaction among minority children. This study examined the relationship between perceived and actual body size and Body Mass Index among 43 low-socioeconomic Hispanic 3rd-graders. Researchers measured participants' Body Mass Index; students self-reported Perceived Ideal Self Image and Perceived Actual Self Image…

  7. The Relationship between Perceived and Ideal Body Size and Body Mass Index in 3rd-Grade Low Socioeconomic Hispanic Children

    ERIC Educational Resources Information Center

    Fisher, Allison; Lange, Mary Anne; Young-Cureton, Virginia; Canham, Daryl

    2005-01-01

    Very little is known about body satisfaction among minority children. This study examined the relationship between perceived and actual body size and Body Mass Index among 43 low-socioeconomic Hispanic 3rd-graders. Researchers measured participants' Body Mass Index; students self-reported Perceived Ideal Self Image and Perceived Actual Self Image

  8. PREFACE: 3rd International Conference on Science & Engineering in Mathematics, Chemistry and Physics 2015 (ScieTech 2015)

    NASA Astrophysics Data System (ADS)

    Gaol, F. L.

    2015-06-01

    The 3rd International Conference on Science & Engineering in Mathematics, Chemistry and Physics 2015 (ScieTech 2015), was held at The Westin Resort Nusa Dua, Bali on 31 January - 1 February 2015. The ScieTech 2015 conference is aimed to bring together researchers, engineers and scientists from around the world. ScieTech 2015 is placed on promoting interaction between the theoretical, experimental, and applied communities, so that a high level exchange is achieved in new and emerging areas within mathematics, chemistry and physics. As we already know that science and technology have brought tremendous benefits for human civilization. People are becoming healthier, wealthier, better educated, more peaceful, increasingly connected, and living longer. Of course, science and technology provide many answers to global challenges, but we will face more complex problems in the next decade due to increasing world population, limitation of energy, and climate change. Therefore, researchers should be more active in conducting research that enables collaboration between one and the others. Interdisciplinary cooperation is absolutely necessary in order to create a smart system for solving the global problems. We need a global and general long-term view of the future with long-range goals for solving complex problems in next decade. Therefore the conference was held to be a forum for researchers from different disciplines to start collaborating and conducting research that provides a solution to the global issues. The theme of ScieTech 2015 was ''The interdisciplinary Application between Mathematics, Chemistry and Physics to enhance the Quality of Life''. We would like to express our sincere gratitude to all in the Technical Program Committee who have reviewed the papers and developed a very interesting conference program as well as the invited and plenary speakers. This year, we received 197 papers and after rigorous review, 59 papers were accepted. The participants came from 19 countries, and there were six paralell sessions and four keynote speakers. It is an honour to present this volume of Journal of Physics: Conference Series (JPCS) and we deeply thank the authors for their enthusiastic and high-grade contributions. Finally, we would like to thank the conference chairmen, members of the steering committee, the organizing committee, the organizing secretariat and the financial support from the conference sponsors that allowed the success of ScieTech 2015.

  9. PREFACE: 3rd International Conference on Geological, Geographical, Aerospace and Earth Science 2015 (AeroEarth 2015)

    NASA Astrophysics Data System (ADS)

    Gaol, F. L.

    2016-02-01

    The 3rd International Conferences on Geological, Geographical, Aerospaces and Earth Sciences 2015 (AeroEarth 2015), was held at The DoubleTree Hilton, Jakarta, Indonesia during 26 - 27 September 2015. The 1st AeoroEarth was held succefully in Jakarta in 2013. The success continued to The 2nd AeroEarth 2014 that was held in Kuta Bali, Indonesia. The publications were published by EES IOP in http://iopscience.iop.org/1755-1315/19/1 and http://iopscience.iop.org/1755-1315/23/1 respectively. The AeroEarth 2015 conference aims to bring together researchers, engineers and scientists from around the world. Through research and development, Earth's scientists have the power to preserve the planet's different resource domains by providing expert opinion and information about the forces which make life possible on Earth. The theme of AeroEarth 2015 is ''Earth and Aerospace Sciences : Challenges and Opportunities'' Earth provides resources and the exact conditions to make life possible. However, with the advent of technology and industrialization, the Earth's resources are being pushed to the brink of depletion. Non-sustainable industrial practices are not only endangering the supply of the Earth's natural resources, but are also putting burden on life itself by bringing about pollution and climate change. A major role of earth science scholars is to examine the delicate balance between the Earth's resources and the growing demands of industrialization. Through research and development, earth scientists have the power to preserve the planet's different resource domains by providing expert opinion and information about the forces which make life possible on Earth. We would like to express our sincere gratitude to all in the Technical Program Committee who have reviewed the papers and developed a very interesting Conference Program as well as the invited and plenary speakers. This year, we received 78 papers and after rigorous review, 18 papers were accepted. The participants come from 8 countries. There are 4 (four) Parallel Sessions and 3 (Three) Keynote Speakers. It is an honour to present this volume of IOP Conference Series: Earth and Environmental Science (EES) and we deeply thank the authors for their enthusiastic and high-grade contribution. Finally, we would like to thank the conference chairmen, the members of the steering committee, the organizing committee, the organizing secretariat and the financial support from the conference sponsors that allowed the success of AeroEarth 2015.

  10. Effect on Physical Activity of a Randomized Afterschool Intervention for Inner City Children in 3rd to 5th Grade

    PubMed Central

    Crouter, Scott E.; de Ferranti, Sarah D.; Whiteley, Jessica; Steltz, Sarah K.; Osganian, Stavroula K.; Feldman, Henry A.; Hayman, Laura L.

    2015-01-01

    Background Less than 45% of U.S. children meet the 60 min.d-1 physical activity (PA) guideline. Structured after-school PA programing is one approach to help increase activity levels. This study aimed to evaluate the feasibility and short-term impact of a supervised after-school PA and nutrition education program on activity levels. Methods Forty-two 3rd-5th graders from an inner-city school in Boston, MA were randomly assigned to a 10-wk after-school program of either: 1) weekly nutrition education, or 2) weekly nutrition education plus supervised PA 3 d.wk-1 at a community-based center. At baseline and follow-up, PA was measured using accelerometry and fitness (VO2max) was estimated using the PACER 15-m shuttle run. Additional measures obtained were non-fasting finger stick total cholesterol (TC) and glucose levels, waist circumference (WC), body mass index (BMI), percent body fat (%BF), and blood pressure (BP). Values are presented as mean±SE, unless noted otherwise. Results Thirty-six participants completed the study (mean±SD; age 9.7±0.9 years). Participants attended >80% of the sessions. After adjusting for accelerometer wear time and other design factors, light and moderate-to-vigorous PA (MVPA) increased in the nutrition+PA group (+21.5±14.5 and +8.6±8.0 min.d-1, respectively) and decreased in the nutrition only group (-35.2±16.3 and -16.0±9.0 min.d-1, respectively); mean difference between groups of 56.8±21.7 min.d-1 (light PA, p = 0.01) and 24.5±12.0 min.d-1 (MVPA, p = 0.04). Time spent in sedentary behaviors declined in the nutrition+PA group (-14.8±20.7 min.d-1) and increased in the nutrition only group (+55.4±23.2 min.d-1); mean difference between groups of -70.2±30.9 min.d-1 (p = 0.02). Neither group showed changes in TC, BP, WC, %BF, BMI percentile, or fitness (p>0.05). Conclusions The supervised afterschool community-based nutrition and PA program was well accepted and had high attendance. The changes in light PA and MVPA has potential to promote weight maintenance in inner-city elementary school children, however longer term studies with larger samples are needed. Trial Registration ClinicalTrials.gov NCT01104038 PMID:26510013

  11. Professionalism: challenges for dentistry in the future.

    PubMed

    Ozar, D T

    2012-11-01

    While countries varies significantly in the financing of dental care, they are much more alike in the delivery of dentistry. Dental care is principally provided in dental offices and clinics that are independent business entities whose business leaders are most often the dentists themselves. However society expects from dentists a level of professionalism (i.e. habitually acting ethically, both in terms of competence and conduct) in contrast to the methods and motivations of the marketplace. This is why the single most important challenge of dental professional ethics continues to be giving proper priority to patients' well being and building ethically correct decision-making relationships with patients while, at the same time, trying to maintain a successful business operation. If we look into dentistry's future, the centrality of this aspect of professional ethics is not likely to change, although the ways in which dentists might violate this trust will probably multiple as funding mechanisms become increasingly complex. It is important that dentists reflect with fresh eyes on their ethical commitments. One challenge is the increased availability of oral health information to the public and the fact that so many people are uncritical of the accuracy of information in the media and on the web. A second is the increase in the amount of health care advertising in many societies. A third is the growth of aesthetic dentistry that differs from standard oral health care in important and ethically significant ways. The fourth is insurance that frequently complicates the explanation of a patient's treatment alternatives and often brings a third party into the treatment decision relationship. The ethical challenges of each of these factors will be considered and ultimately tying it to the central theme of dental professionalism. PMID:23221268

  12. EDS operator and control software

    SciTech Connect

    Ott, L.L.

    1985-04-01

    The Enrichment Diagnostic System (EDS) was developed at Lawrence Livermore National Laboratory (LLNL) to acquire, display and analyze large quantities of transient data for a real-time Advanced Vapor Laser Isotope Separation (AVLIS) experiment. Major topics discussed in this paper are the EDS operator interface (SHELL) program, the data acquisition and analysis scheduling software, and the graphics software. The workstation concept used in EDS, the software used to configure a user's workstation, and the ownership and management of a diagnostic are described. An EDS diagnostic is a combination of hardware and software designed to study specific aspects of the process. Overall system performance is discussed from the standpoint of scheduling techniques, evaluation tools, optimization techniques, and program-to-program communication methods. EDS is based on a data driven design which keeps the need to modify software to a minimum. This design requires a fast and reliable data base management system. A third party data base management product, Berkeley Software System Database, written explicitly for HP1000's, is used for all EDS data bases. All graphics is done with an in-house graphics product, Device Independent Graphics Library (DIGLIB). Examples of devices supported by DIGLIB are: Versatec printer/plotters, Raster Technologies Graphic Display Controllers, and HP terminals (HP264x and HP262x). The benefits derived by using HP hardware and software as well as obstacles imposed by the HP environment are presented in relation to EDS development and implementation.

  13. Lasers: The Magic Wand in Esthetic Dentistry!!

    PubMed Central

    Shajahan, P A; Kumar, P Ranjith; Hariprasad, A; Mathew, Jyothis; Shaji, A P; Ahammed, M Fazeel

    2015-01-01

    In this era of fast developing technologies and innovative ideas, the need for faster treatment has become a necessity. Treatment with lasers that is much less time-consuming and painless is accepted and appreciated by the patient. Use of Lasers is not new; they have been in use for decades since their development by Maiman in 1960. Lasers have travelled a long way from ruby lasers to erbium lasers and are being fondly used in every aspect of dental treatment. This article aims at elaborate the use and applications of lasers in the field of esthetic dentistry. PMID:26124614

  14. The changing face of dentistry: nanotechnology

    PubMed Central

    Kanaparthy, Rosaiah; Kanaparthy, Aruna

    2011-01-01

    The human body comprises molecules; hence, the availability of molecular nanotechnology will permit dramatic progress to address medical problems and will use molecular knowledge to maintain and improve human health at the molecular scale. Nanomedicine could develop devices that are able to work inside the human body in order to identify the early presence of a disease, and to identify and quantify toxic molecules and tumor cells, for example. Nanodentistry will make possible the maintenance of comprehensive oral health by employing nanomaterials, including tissue engineering and, ultimately, dental nanorobots. This review is an attempt to highlight the possible applications of nanotechnology and the use of nanomaterials in dentistry. PMID:22131826

  15. Interdisciplinary treatment for esthetic restorative dentistry.

    PubMed

    Small, Bruce W

    2002-01-01

    Many of our patients have dental needs that general dentists cannot satisfy and may not even know about. Using an interdisciplinary team will expand the knowledge of all of the team members and can only enhance the restorative result, including function, long-term prognosis, and esthetics. Suggestions have been offered to help develop these teams, which may include general dentists, periodontists, orthodontists, oral surgeons, and endodontists. Team members are chosen based on individual skills needed for a particular case but all must be able to motivate and educate patients while providing excellent dentistry. PMID:12116509

  16. The changing face of dentistry: nanotechnology.

    PubMed

    Kanaparthy, Rosaiah; Kanaparthy, Aruna

    2011-01-01

    The human body comprises molecules; hence, the availability of molecular nanotechnology will permit dramatic progress to address medical problems and will use molecular knowledge to maintain and improve human health at the molecular scale. Nanomedicine could develop devices that are able to work inside the human body in order to identify the early presence of a disease, and to identify and quantify toxic molecules and tumor cells, for example. Nanodentistry will make possible the maintenance of comprehensive oral health by employing nanomaterials, including tissue engineering and, ultimately, dental nanorobots. This review is an attempt to highlight the possible applications of nanotechnology and the use of nanomaterials in dentistry. PMID:22131826

  17. Uses of turmeric in dentistry: an update.

    PubMed

    Chaturvedi, T P

    2009-01-01

    Turmeric has been used for thousands of years as a dye, a flavoring, and a medicinal herb. In India, it has been used traditionally as a remedy for stomach and liver ailments, as well as topically to heal sores. Ancient Indian medicine has touted turmeric as an herb with the ability to provide glow and luster to the skin as well as vigor and vitality to the entire body. Since turmeric has antimicrobial, antioxidant, astringent, and other useful properties, it is quite useful in Dentistry also. The objective of this article is to highlight various uses of turmeric in the dental field along with its use in medical problems. PMID:19336870

  18. Position paper on digital communication in dentistry.

    PubMed

    Chambers, David W

    2012-01-01

    Digital communication offers advantages and challenges to dental practice. As dentistry becomes comfortable with this technology, it is essential that commercial and other values not be accepted on a par with professional ones and that the traditional dentist-patient relationship not be compromised by inserting third parties that introduce nonprofessional standards. The Officers and Regents of the American College of Dentist have prepared this background and position paper as a guide to the ethical use of digital communication in dental practice. PMID:23654160

  19. Entrepreneurial Knowledge and Aspirations of Dentistry Students in South Africa

    ERIC Educational Resources Information Center

    Brijlal, Pradeep; Brijlal, Priscilla

    2013-01-01

    An investigation of the intentions and knowledge of entrepreneurship of final-year university dentistry students is reported, with particular regard to the factors of gender and race. A questionnaire survey was used with final-year dentistry students, over two years, at the University of the Western Cape in South Africa. The findings show that

  20. Entrepreneurial Knowledge and Aspirations of Dentistry Students in South Africa

    ERIC Educational Resources Information Center

    Brijlal, Pradeep; Brijlal, Priscilla

    2013-01-01

    An investigation of the intentions and knowledge of entrepreneurship of final-year university dentistry students is reported, with particular regard to the factors of gender and race. A questionnaire survey was used with final-year dentistry students, over two years, at the University of the Western Cape in South Africa. The findings show that…

  1. Neuromuscular dentistry: Occlusal diseases and posture

    PubMed Central

    Khan, Mohd Toseef; Verma, Sanjeev Kumar; Maheshwari, Sandhya; Zahid, Syed Naved; Chaudhary, Prabhat K.

    2013-01-01

    Neuromuscular dentistry has been a controversial topic in the field of dentistry and still remains debatable. The issue of good occlusion and sound health has been repeatedly discussed. Sometimes we get complains of sensitive teeth and sometimes of tired facial muscles on getting up in the morning. Owing to the intimate relation of masticatory apparatus with the cranium and cervico-scapular muscular system, the disorders in any system, draw attention from concerned clinicians involved in management, to develop an integrated treatment protocol for the suffering patients. There may be patients reporting to the dental clinics after an occlusal restoration or extraction, having pain in or around the temporomandibular joint, headache or neck pain. Although their esthetic demands must not be undermined during the course of treatment plan, whenever dental treatment of any sort is planned, occlusion/bite should be given prime importance. Very few dentist are able to diagnose the occlusal disease and of those who diagnose many people resort to aggressive treatment modalities. This paper aims to report the signs of occlusal disease, and discuss their association with TMDs and posture. PMID:25737904

  2. Emerging Trends of Herbal Care in Dentistry

    PubMed Central

    Kumar, Gunjan; Jalaluddin, Md.; Rout, Purnendu; Mohanty, Rajat; Dileep, C.L.

    2013-01-01

    Herbs are staging a comeback and herbal ‘renaissance’ is happening all over the globe. The herbal products, today, symbolize safety, in contrast to the synthetics that are regarded as unsafe to humans and the environment. A herb, botanically speaking, is any plant that lacks the woody tissue which is characteristic of shrubs or trees. More specifically, herbs are plants which are used medicinally or for their flavour or scent. Herbs with medicinal properties are a useful and an effective source of treatment for various disease processes. Herbal extracts have been successfully used in dentistry as tooth cleaning and antimicrobial plaque agents. The use of herbal medicines continues to expand rapidly across the world. Many people take herbal medicines or herbal products now for their health care in different national healthcare settings. Herbal extracts have been used in dentistry for reducing inflammation, as antimicrobial plaque agents, for preventing release of histamine and as antiseptics, antioxidants, antimicrobials, antifungals, antibacterials, antivirals and analgesics. They also aid in healing and are effective in controlling microbial plaque in gingivitis and periodontitis, thereby improving immunity. PMID:24086929

  3. The importance of holograms in dentistry

    NASA Astrophysics Data System (ADS)

    Sinescu, Cosmin; Negrutiu, Meda; Pop, Dana; Cuc, Lavinia; DeSabata, Aldo; Negru, Radu; Hluscu, Mihai; Rominu, Mihai; Marcauteanu, Corina; Demjan, Eniko; Bradu, Adrian; Antoniac, Iulian; Dobre, George; Podoleanu, Adrian

    2009-05-01

    Holography offer new nondestructive possibilities for bridging the gap between in vitro and in vivo measurements in dentistry, and thus increase the possibility of achieving more accurate and sometimes more objective diagnosis and therapy. The use of stone and plaster study models is an integral part of any dental practice and is required for research. Storage of study models is problematic in terms of space and cost. Various methods have been employed in the threedimensional (3D) assessment and recording of dental study models. These include Holography and Moire Topography. Holography was introduced in 1948. However, it was the work of Leith & Upatnieks that revolutionized holography with the application of the laser beam. Holography allows direct measurement of 3D displacements of a few micrometres. The major problem with this technique is the poor quality of recording the details of the study models, particularly in the incisor region. An advantage of holography is that films may be stored with medical records and it is a further step towards archiving dental study models. However, it cannot totally replace the original models. The aim of this study is to present the possibility to record dental models in holograms and to develop direct measurement on these. Key words: dentistry, dental model, holograms, fixed partial dentures, optical coherence tomography.

  4. Biosmart materials: breaking new ground in dentistry.

    PubMed

    Badami, Vijetha; Ahuja, Bharat

    2014-01-01

    By definition and general agreement, smart materials are materials that have properties which may be altered in a controlled fashion by stimuli, such as stress, temperature, moisture, pH, and electric or magnetic fields. There are numerous types of smart materials, some of which are already common. Examples include piezoelectric materials, which produce a voltage when stress is applied or vice versa, shape memory alloys or shape memory polymers which are thermoresponsive, and pH sensitive polymers which swell or shrink as a response to change in pH. Thus, smart materials respond to stimuli by altering one or more of their properties. Smart behaviour occurs when a material can sense some stimulus from its environment and react to it in a useful, reliable, reproducible, and usually reversible manner. These properties have a beneficial application in various fields including dentistry. Shape memory alloys, zirconia, and smartseal are examples of materials exhibiting a smart behavior in dentistry. There is a strong trend in material science to develop and apply these intelligent materials. These materials would potentially allow new and groundbreaking dental therapies with a significantly enhanced clinical outcome of treatments. PMID:24672407

  5. Biosmart Materials: Breaking New Ground in Dentistry

    PubMed Central

    Badami, Vijetha; Ahuja, Bharat

    2014-01-01

    By definition and general agreement, smart materials are materials that have properties which may be altered in a controlled fashion by stimuli, such as stress, temperature, moisture, pH, and electric or magnetic fields. There are numerous types of smart materials, some of which are already common. Examples include piezoelectric materials, which produce a voltage when stress is applied or vice versa, shape memory alloys or shape memory polymers which are thermoresponsive, and pH sensitive polymers which swell or shrink as a response to change in pH. Thus, smart materials respond to stimuli by altering one or more of their properties. Smart behaviour occurs when a material can sense some stimulus from its environment and react to it in a useful, reliable, reproducible, and usually reversible manner. These properties have a beneficial application in various fields including dentistry. Shape memory alloys, zirconia, and smartseal are examples of materials exhibiting a smart behavior in dentistry. There is a strong trend in material science to develop and apply these intelligent materials. These materials would potentially allow new and groundbreaking dental therapies with a significantly enhanced clinical outcome of treatments. PMID:24672407

  6. A Low Distortion 3rd-Order Continuous-Time Delta-Sigma Modulator for a Worldwide Digital TV-Receiver

    NASA Astrophysics Data System (ADS)

    Obata, Koji; Matsukawa, Kazuo; Mitani, Yosuke; Takayama, Masao; Tokunaga, Yusuke; Sakiyama, Shiro; Dosho, Shiro

    This paper presents a low distortion 3rd-order continuous-time delta-sigma modulator for a worldwide digital TV-receiver whose peak SNDR is 69.8dB and SNR is 70.2dB under 1V power supply. To enhance SNDR performance, the mechanisms to occur harmonic distortions at feedback current-steering DAC and flash ADC have been analyzed. A low power tuning system using RC-relaxation oscillator has been developed in order to achieve high yield against PVT variations. A 3rd-order modulator with modified single opamp resonator contributes to cost reduction by realizing a very compact circuit. Reduction schemes of the distortions enabled the modulator to achieve FOM of 0.18pJ/conv-step.

  7. Effects of Using a Neuroeducational Intervention to Enhance Perseverance for Online EdD and EdS Students

    ERIC Educational Resources Information Center

    Cadle, Charles R.

    2013-01-01

    Developing and maintaining a "completion mindset" is a necessary mental condition for online educational doctorate (EdD) and educational specialist (EdS) students to obtain their advanced degrees. The purpose of this research study was to examine the effect of a neuroeducational intervention on a volunteer convenience sample of EdD and…

  8. Effects of Using a Neuroeducational Intervention to Enhance Perseverance for Online EdD and EdS Students

    ERIC Educational Resources Information Center

    Cadle, Charles R.

    2013-01-01

    Developing and maintaining a "completion mindset" is a necessary mental condition for online educational doctorate (EdD) and educational specialist (EdS) students to obtain their advanced degrees. The purpose of this research study was to examine the effect of a neuroeducational intervention on a volunteer convenience sample of EdD and

  9. The evidence-based dentistry initiative at Baylor College of Dentistry.

    PubMed

    Jones, Daniel L; Hinton, Robert J; Dechow, Paul C; Abdellatif, Hoda; McCann, Ann L; Schneiderman, Emet D; D'Souza, Rena

    2011-02-01

    This report describes the impact of an R25 Oral Health Research Education Grant awarded to the Texas A&M Health Science Center-Baylor College of Dentistry (BCD) to promote the application of basic and clinical research findings to clinical training and encourage students to pursue careers in oral health research. At Baylor, the R25 grant supports a multi-pronged initiative that employs clinical research as a vehicle for acquainting both students and faculty with the tools of evidence-based dentistry (EBD). New coursework and experiences in all 4 years of the curriculum plus a variety of faculty development offerings are being used to achieve this goal. Progress on these fronts is reflected in a nascent "EBD culture" characterized by increasing participation and buy-in by students and faculty. The production of a new generation of dental graduates equipped with the EBD skill set as well as a growing nucleus of faculty who can model the importance of evidence-based practice is of paramount importance for the future of dentistry. PMID:21473244

  10. Creating an Evidence-Based Dentistry Culture at Baylor College of Dentistry: The Winds of Change

    PubMed Central

    Hinton, Robert J.; Dechow, Paul C.; Abdellatif, Hoda; Jones, Daniel L.; McCann, Ann L.; Schneiderman, Emet D.; D’Souza, Rena

    2011-01-01

    In the early years of the new millennium, the National Institute of Dental and Craniofacial Research of the National Institutes of Health began funding Oral Health Research Education Grants using the R25 mechanism to promote the application of basic and clinical research findings to clinical training and to encourage students to pursue careers in oral health research. This report describes the impact of an R25 grant awarded to the Texas A&M Health Science Center’s Baylor College of Dentistry (BCD) on its curriculum and faculty development efforts. At BCD, the R25 grant supports a multipronged initiative that employs clinical research as a vehicle for acquainting both students and faculty with the tools of evidence-based dentistry (EBD). New coursework and experiences in all four years of the curriculum plus a variety of faculty development offerings are being used to achieve this goal. Progress on these fronts is reflected in a nascent EBD culture characterized by increasing participation and buy-in by students and faculty. The production of a new generation of dental graduates equipped with the EBD skill set as well as a growing nucleus of faculty members who can model the importance of evidence-based practice is of paramount importance for the future of dentistry. PMID:21368252

  11. Non-thermal atmospheric plasmas in dentistry

    NASA Astrophysics Data System (ADS)

    Sladek, Raymond; Stoffels, Eva

    2006-10-01

    Non-thermal atmospheric plasmas are very efficient in the deactivation of bacteria. A relatively new area is the use of these plasmas in biomedical and dental applications. In this work, application of a novel device in dentistry is investigated, the plasma needle. The plasma needle is used to generate a non-thermal atmospheric micro-plasma. A promising application of this micro-plasma is the treatment of dental cavities, to stop caries without causing pain and removing too much healthy tissue. Various bacterial model systems are used to test the bactericidal efficiency of the plasma needle: bacteria in droplets, thin films and (multi-species) biofilms. The effects of plasma needle treatment on bacterial viability, growth and composition are discussed. The results indicate that plasma can become a useful tool for dental treatment.

  12. Photobiomodulation and implants: implications for dentistry

    PubMed Central

    Tang, Elieza

    2013-01-01

    The use of dental implants has become a mainstay of rehabilitative and restorative dentistry. With an impressive clinical success rate, there remain a few minor clinical issues with the use of implants such as peri-implant mucositis and peri-implantitis. The use of laser technology with implants has a fascinating breadth of applications, beginning from their precision manufacturing to clinical uses for surgical site preparation, reducing pain and inflammation, and promoting osseointegration and tissue regeneration. This latter aspect is the focus of this review, which outlines various studies of implants and laser therapy in animal models. The use of low level light therapy or photobiomodulation has demonstrated its efficacy in these studies. Besides more research studies to understand its molecular mechanisms, significant efforts are needed to standardize the clinical dosing and delivery protocols for laser therapy to ensure the maximal efficacy and safety of this potent clinical tool for photobiomodulation. PMID:24455438

  13. Photobiomodulation and implants: implications for dentistry.

    PubMed

    Tang, Elieza; Arany, Praveen

    2013-12-01

    The use of dental implants has become a mainstay of rehabilitative and restorative dentistry. With an impressive clinical success rate, there remain a few minor clinical issues with the use of implants such as peri-implant mucositis and peri-implantitis. The use of laser technology with implants has a fascinating breadth of applications, beginning from their precision manufacturing to clinical uses for surgical site preparation, reducing pain and inflammation, and promoting osseointegration and tissue regeneration. This latter aspect is the focus of this review, which outlines various studies of implants and laser therapy in animal models. The use of low level light therapy or photobiomodulation has demonstrated its efficacy in these studies. Besides more research studies to understand its molecular mechanisms, significant efforts are needed to standardize the clinical dosing and delivery protocols for laser therapy to ensure the maximal efficacy and safety of this potent clinical tool for photobiomodulation. PMID:24455438

  14. Nanotechnology and its application in dentistry.

    PubMed

    Abiodun-Solanke, Imf; Ajayi, Dm; Arigbede, Ao

    2014-09-01

    Nanotechnology influences almost every facet of everyday life from security to medicine. The concept of nanotechnology is that when one goes down to the bottom of things, one can discover unlimited possibilities and potential of the basic particle. In nanotechnology, analysis can be made to the level of manipulating atoms, molecules and chemical bonds between them. The growing interest in the dental applications of nanotechnology is leading to the emergence of a new field called nanodentistry. An electronic database search that included PubMed, MedLine, and Cochrane library was conducted. Key words used in the search are nanotechnology dentistry and applications. Language limitation was set as articles reviewed were only those written and published in English language. We did not search the gray literature. Initially, 52 articles were retrieved from the database, and articles considered were those published from 2008 to 2013. Eight articles that met the selection criteria were eventually selected and reviewed. PMID:25364585

  15. Biological therapy and dentistry: a review paper.

    PubMed

    Radfar, Lida; Ahmadabadi, Roshanak E; Masood, Farah; Scofield, R Hal

    2015-11-01

    In recent years, a new class of drugs has revolutionized the treatment of autoimmune, allergic, infectious, and many more diseases. This new class of drugs is made of 3 groups-cytokines, monoclonal antibodies, and fusion proteins-that may target special damaged cells but not all the cells. These drugs may have side effects such as infection, hypersensitivity, hematologic disorders, cancer, hepatotoxicity, and neurologic disorders. However, there is not enough evidence or long-term studies of the mechanism of action and side effects of these drugs. Patients receiving biological therapies may need special consideration in dentistry. This paper is a review of the classification, mechanism of action, and side effects of these drugs and dental consideration for patients receiving biological therapies. PMID:26372436

  16. Preparing for the "silver age of dentistry".

    PubMed

    Martin, R E

    1994-11-01

    Providing oral health care to older adults will be a challenging and rewarding part of dental practice in the years ahead. It will include understanding normal aging, appreciation of the pathophysiology of chronic diseases experienced by many elderly, and application of key principles of pharmacology in care of patients receiving medications for treatment of these diseases. It will involve an understanding of the interaction of systemic conditions with oral health status, adequate diagnosis of oral disease, and appropriate rational treatment planning with a strong emphasis on preventive dentistry. It will include care provided in nursing homes or during housecalls for the homebound. Dentist-geriatricians will be working with teams of healthcare professionals that include physicians, dentists, podiatrists, ophthalmologists, nurses, social workers, nutritionists, pharmacists, and occupational and physical therapists. Above all, the team will provide skilled compassionate care, which is always good business! PMID:9584727

  17. Nanotechnology in dentistry: reduction to practice.

    PubMed

    Ure, David; Harris, Jonathan

    2003-01-01

    The speed at which advances are being made in science has catapulted nanotechnology from its theoretical foundations straight into the real world. There are now many examples of commercially available products demonstrating that, in given situations, the technology really does work and that its scope for further application is wide. Healthcare, along with society as a whole, is facing a major revolution in the wake of ongoing technological developments in the field of nanotechnology. Dentistry as an individual healthcare discipline is not exempt, having already been targeted directly with novel 'nano-materials' at the same time as indirectly enjoying the benefits of nano-related advances in the electronics industry through the ongoing computerization of the modern practice. This article examines current practical applications of nanotechnology alongside proposed applications in the future and aims to demonstrate that, as well as a good deal of science fiction, there is some tangible science fact emerging from this novel multi-disciplinary science. PMID:12619307

  18. Nanotechnology and its Application in Dentistry

    PubMed Central

    Abiodun-Solanke, IMF; Ajayi, DM; Arigbede, AO

    2014-01-01

    Nanotechnology influences almost every facet of everyday life from security to medicine. The concept of nanotechnology is that when one goes down to the bottom of things, one can discover unlimited possibilities and potential of the basic particle. In nanotechnology, analysis can be made to the level of manipulating atoms, molecules and chemical bonds between them. The growing interest in the dental applications of nanotechnology is leading to the emergence of a new field called nanodentistry. An electronic database search that included PubMed, MedLine, and Cochrane library was conducted. Key words used in the search are nanotechnology dentistry and applications. Language limitation was set as articles reviewed were only those written and published in English language. We did not search the gray literature. Initially, 52 articles were retrieved from the database, and articles considered were those published from 2008 to 2013. Eight articles that met the selection criteria were eventually selected and reviewed. PMID:25364585

  19. ED overcrowding: the Ontario approach.

    PubMed

    Ovens, Howard

    2011-12-01

    Ontario is Canada's most populous province, with approximately 12 million people and 130 emergency departments (EDs). Canada has a national single-payer universal health care system, but provinces are responsible for administration. After years of problems and failed attempts to address chronic ED overcrowding, in April 2008 Ontario embarked on an ambitious program to improve system performance through targeted investments (initially CAN$500 million over 3 years) and realigned incentives. Supporting the program were requirements for hospitals to submit timely data and targets for length of stay (LOS) and annual improvements; results are publicly reported. The program has been continued this year. While not all our provincial level targets have been met as yet, major improvements have been made, especially in access to care and LOS in the ED for patients eventually discharged home. The greatest improvements were made among the cohort of mainly urban, high-volume EDs that had the worst performance at baseline. This presentation will highlight some of the controversies and challenges and key lessons learned. Overall, the Ontario experience suggests ED overcrowding is a soluble problem, but requires a system-level intervention. PMID:22168186

  20. A short account of forensic dentistry in France.

    PubMed

    Riaud, Xavier

    2016-01-01

    The earliest records and more recent cases where forensic dentistry has been used to identify bodies in France are described. The establishment of the French Society of Forensic Odontology is detailed. PMID:26930882

  1. Is dentistry a profession? Part 3. Future challenges.

    PubMed

    Welie, Jos V M

    2004-11-01

    In 2 earlier articles a definition of professionalism was developed, and several specific professional responsibilities were deduced. This third and final article in the series examines whether dentistry qualifies as a profession. On various levels, the professionalism of dentistry is found wanting. However, attaining the status of a profession is a work in progress, which means that each profession will always have some deficiencies. The author concludes that dentistry qualifies as a profession but that it is also exhibiting a trend toward once again becoming a business (as it was before the 19th century). For the sake of honesty with the public, dentistry must make a choice between these 2 models. PMID:15530264

  2. Dr. Newell Sill Jenkins: progenitor of cosmetic dentistry.

    PubMed

    Hyson, John M; Swank, Scott D

    2003-08-01

    Dr. Newell Sill Jenkins was one of the pioneer American dentists who took "American dentistry" to Europe. Among his patients were Composer Richard Wagner, and among his friends, Author Mark Twain. He treated some of the crown head of Europe, and yet found time to participate in organized dentistry and conduct research in cosmetic dentistry. He was the father of the porcelain revival in both Europe and America. Unfortunately, Jenkins' Legacy as the chief proponent of cosmetic dentistry in the late 19th and early 20th centuries has been largely ignored by dental historians. In a 20-year period (1896 to 1916), Jenkins published 32 articles in the dental literature on the esthetic advantages of porcelain fillings. It is time to give Jenkins his just recognition. PMID:13677405

  3. Dentistry without the Drill? New Study Offers Hope

    MedlinePlus

    ... news/fullstory_156141.html Dentistry Without the Drill? New Study Offers Hope Tooth decay happens, but many ... news for those afraid of the dentist's drill: New research suggests that a "no-drill" approach can ...

  4. Different Clinical Applications of Bondable Reinforcement Ribbond in Pediatric Dentistry

    PubMed Central

    Tuloglu, Nuray; Bayrak, Sule; Tunc, Emine Sen

    2009-01-01

    Ribbond is a bondable, biocompatible, esthetic, translucent and easy-to-use reinforced ribbon. By virtue of its wide spectrum of intended properties, it enjoys various applications in clinical dentistry. This case report demonstrates usage of Ribbond as a space maintainer, a fixed partial denture with a natural tooth pontic, an endodontic post and cores and a splint material in children. Ribbond can be used as an alternative to conventional treatment in pediatric dentistry. PMID:19826607

  5. Occupational hazards of dentistry. A review of literature from 1990.

    PubMed

    Babich, S; Burakoff, R P

    1997-10-01

    A brief survey of the scientific and clinical literature (1990-present) on occupational hazards in dentistry is presented. The hazards identified are associated with chemical and biological agents. Yet, dentistry is a relatively safe profession. Other adverse health risks arise as new technologies and materials are developed. However, once identified and recognized as a risk, new guidelines, precautions and protocols are rapidly instituted to greatly reduce or even eliminate the occupational hazard. PMID:9375508

  6. Stem cells in Dentistry: knowledge and attitude of Nigerian Dentists

    PubMed Central

    2013-01-01

    Background Several controversies exist about the methods of harvesting and eventual utilization of stem cells in Medicine and Dentistry. The objective of the study was to investigate the awareness, attitude and knowledge of the use of stem cells in Dentistry among Nigerian Dentists. Methods This descriptive, cross-sectional study was conducted among dentists selected from both private and public health sectors, in some of the major cities in Nigeria. Results The majority of the participants were ≤35 years in age, male, Pentecostal Christians, possessed a postgraduate qualification, had practiced for ≤5 years and were specialists or specializing. In this study, 153(81.0%) of the participants reported awareness about the use of stem cells in dentistry which was significantly associated with qualification and type of practice. Most of the respondents 114 (60.3%) had a poor knowledge of the use of stem cells in Dentistry. This was significantly associated with type of practice and awareness about stem cell use in dentistry but binary logistic regression showed awareness as the only determinant of knowledge. About three-quarters 142 (75.1%) of the participants exhibited positive attitude towards stem cell use. This had a positive non-significant association with knowledge and reported awareness. Conclusion Data from this study revealed a high level of awareness, positive attitude to and poor knowledge of the use of stem cells in Dentistry among a cross section of Nigerian Dentists. PMID:23767980

  7. Exploring leadership in the context of dentistry in the UK.

    PubMed

    Willcocks, Stephen George

    2016-05-01

    Purpose The purpose of this paper is to explore selective leadership approaches in the context of dentistry in the UK. Design/methodology/approach This is a conceptual paper utilising published sources from relevant literature about leadership theory and practice and the policy background to dentistry in the UK. Findings This paper suggests that there is merit in identifying and applying an eclectic mix of leadership theory to the case of dentistry. It offers insight into individual aspects of the leadership role for dentists and applies this to the dental context. It also contrasts these individual approaches with shared leadership and suggests this may also be relevant to dentistry. It highlights the fact that leadership will be of growing concern for dentistry in the light of recent policy changes. Research limitations/implications This paper points out that there are developmental implications depending on the particular approach taken. It argues that leadership development will become increasingly important in dentistry in the UK. Originality/value This paper addresses a topic that has so far received limited attention in the literature. PMID:27198707

  8. Practice of preventive dentistry for nursing staff in primary care

    PubMed Central

    Acuña-Reyes, Raquel; Cigarroa-Martínez, Didier; Ureña-Bogarín, Enrique; Orgaz-Fernández, Jose David

    2014-01-01

    Objectives: Determine the domain of preventive dentistry in nursing personnel assigned to a primary care unit. Methods: Prospective descriptive study, questionnaire validation, and prevalence study. In the first stage, the questionnaire for the practice of preventive dentistry (CPEP, for the term in Spanish) was validated; consistency and reliability were measured by Cronbach's alpha, Pearson's correlation, factor analysis with intra-class correlation coefficient (ICC). In the second stage, the domain in preventive dental nurses was explored. Results: The overall internal consistency of CPEP is α= 0.66, ICC= 0.64, CI95%: 0.29-0.87 (p >0.01). Twenty-one subjects in the study, average age 43, 81.0% female, average seniority of 12.5 were included. A total of 71.5% showed weak domain, 28.5% regular domain, and there was no questionnaire with good domain result. The older the subjects were, the smaller the domain; female nurses showed greater mastery of preventive dentistry (29%, CI95%: 0.1-15.1) than male nurses. Public health nurses showed greater mastery with respect to other categories (50%, CI95%: 0.56-2.8). Conclusions: The CDEP has enough consistency to explore the domain of preventive dentistry in health-care staff. The domain of preventive dentistry in primary care nursing is poor, required to strengthen to provide education in preventive dentistry to the insured population. PMID:25386037

  9. 35 years of EDS software.

    PubMed

    Schamber, Frederick H

    2009-12-01

    The computerized multichannel analyzer running software specifically designed for X-ray analysis appeared very early in the commercialization of the energy dispersive X-ray spectrometer (EDS) and, like the solid-state X-ray detector itself, was built on a technology foundation originally developed for nuclear spectroscopy. However, software techniques employed for gamma-ray spectra could not accommodate the continuum component of EDS spectra, and a new approach was required. Least-squares fitting with "top-hat" filtered spectra proved to be an effective solution that is still widely used today. Though modern computer technology has subsequently contributed greatly to the speed and convenience of present-day EDS software, it seems that the achievable accuracy and precision of spectrum analysis has not fundamentally improved, and most of the early challenges are still quite relevant, although they may appear in new guises. The availability of the high speed silicon drift detector, however, may provide both the incentive and the data precision to drive future advances. This article traces the formative years of EDS software from the personalized perspective of a participant. Factors that shaped the development of the industry are identified, and future directions are speculated. PMID:19909560

  10. What Is Ag-Ed?

    ERIC Educational Resources Information Center

    Linley, Judy; Mylne, Lee

    1998-01-01

    Ag-Ed, an agricultural education project for upper elementary students, was held in conjunction with the Toowoomba Show in Queensland, Australia. Agriculture industry representatives provided 20 interactive agricultural presentations for class groups, which were supplemented with a teacher resource-package containing a directory and 13 sections of…

  11. [Dentistry in Korean during the Japanese occupation].

    PubMed

    Shin, Jae-Eu

    2004-12-01

    The Japanese introduction of dentistry into Korea was for treating the Japanese residing in Korea Noda-Oji was the first Japanese dentist for Japanese people in Korea in 1893, and Narajaki doyoyo, an invited dentist was posted in the Korean headquarter of Japanese army in September, 1905. The imperialist Japan licensed the dental technicians (yipchisa) without limit and controlled them generously so they could practice dentistry freely. This measure was contrary to that in Japan. (In Japan no new dental technician was licensed.) Komori, a dental technician opened his laboratory at Chungmuro in 1902. The dental technician had outnumbered by 1920. In 1907, the first Korean dental technician Sung-Ryong Choi practiced dentistry in Jongno. The imperialist Japan made the regulations for dental technicians to set a limit to the advertisement and medical practice of dental technicians. The first Korean dentists Suk-Tae Ham was register No. 1 in the dentist license. The Kyungsung dental school was established by Nagira Dasoni for the purpose of educating some Korean people that contributed to Japanese colonization. It made progress with the help of Japan, it was was given the approval of the establishment of the professional school in January the 25th, 1929. It was intended to produce Korean dentists in the first place but became the school for Japanese students later on. The association of Chosun dentist, which had been founded by Narajaki doyoyo, was managed by Japanese dentists in favor of the colonial ruling. The Hansung Association of Dentists established in 1925 was the organization made by the necessity of the association for Koreans only. The Japanese forcefully annexed the Association of Hansung Dentists (Koreans only) to the Association of Kyungsung Dentists to avoid collective actions of Korean dentists in the name of 'Naesunilche' -- 'Japan and Korea and one'. Their invading intention was shown in the event of 'decayed tooth preventive day'. Japanese controlled the gold for dental treatment by licensing and limited the stuff for dental treatment by rationing. The association of Chosun dentists was a group organized for the academic purpose by Nagira Dasoni and etc. In October of 191, where as the association of Kyungsung dentists was constructed on the background of Nagira Dasoni. This establishment of the association of Kyungsung dentists represented a backlash against Ikuda singjo having a complete control over the association of Chosun dentists. The number of Koreans who wrote to the Chosun Dental Science Academy was 27, and they wrote 75 articles, which amounted to 15% of 486 articles. The number of Koreans who wrote to the Kyungsung Dental Science Academy was 16, and they wrote 52 articles, which amounted to 11% of 481 articles. These had been a lot of improvement by activity backlash of the dental association. However, they experimented Korean people. The experiments included the experimental stimulation of dental pain by Nagira Dasoni, use of toxic agents on human bodies such as mercury, bismuth and carcinogenic benzole, and experimental treatments with a poor prognosis. Worst of all, the rapid discrimination was stressed. The different dentition according to races was the subject of comparison researches. The dangerous chemicals were sometimes used. The non-akaloid medication was investigated to relieve the dental pain but, the habitual side effects were not unusual by the overuse of morphine or heroin, which was known to be irrelevant due to their habitual side effect. The use of new and unproven material was recommended as well. Especially, the alloy that substituted gold, attracting attention, was substantiated by researches. PMID:15726757

  12. [Damage-loss relationships and integrated control of 3rd instar larvae of Actias selene nigpoana Felder in planting area of Cornus officinalis Sieb. et Zucc].

    PubMed

    Chen, S; Wang, C; Zhang, Q; Cheng, X

    1997-08-01

    In the present paper, the damage-loss model of Actias selene ningpoana to Cornus officinalis was tested and the results indicated that the yield loss rates obeyed the equation Y = 100 - EXP(4.6042 - 0.0315X). The economic threshold of the 2hd and 3rd instar larvae of A. selene nigpoana was then determined as 22 and 8 insects per tree respecitively. Suggestions for integrated control have been made based on the research of activities of A. selene ningpoana in the forest. PMID:11038910

  13. Modification of elastic stable intramedullary nailing with a 3rd nail in a femoral spiral fracture model results of biomechanical testing and a prospective clinical study

    PubMed Central

    2014-01-01

    Background Elastic stable intramedullary nailing (ESIN) is the standard treatment for displaced diaphyseal femoral fractures in children. However, high complication rates (10-50%) are reported in complex fractures. This biomechanical study compares the stiffness with a 3rd nail implanted to that in the classical 2C-shaped configuration and presents the application into clinical practice. Methods For each of the 3 configurations of ESIN-osteosynthesis with titanium nails eight composite femoral grafts (Sawbones) with an identical spiral fracture were used: 2C configuration (2C-shaped nails, 2 3.5 mm), 3CM configuration (3rd nail from medial) and 3CL configuration (3rd nail from lateral). Each group underwent biomechanical testing in 4-point bending, internal/external rotation and axial compression. Results 2C and 3CM configurations showed no significant differences in this spiroid type fracture model. 3CL had a significantly higher stiffness during anterior-posterior bending, internal rotation and 9 compression than 2C, and was stiffer in the lateral-medial direction than 3CM. The 3CL was less stable during p-a bending and external rotation than both the others. As biomechanical testing showed a higher stability for the 3CL configuration in two (a-p corresponding to recurvation and 9 compression to shortening) of three directions associated with the most important clinical problems, we added a 3rd nail in ESIN-osteosynthesis for femoral fractures. 11 boys and 6 girls (2.5-15 years) were treated with modified ESIN of whom 12 were 3CL; due to the individual character of the fractures 4 patients were treated with 3CM (third nail from medial) and as an exception 1 adolescent with 4 nails and one boy with plate osteosynthesis. No additional stabilizations or re-operations were necessary. All patients achieved full points in the Harris-Score at follow-up; no limb length discrepancy occurred. Conclusion The 3CL configuration provided a significantly higher stiffness than 2C and 3CM configurations in this biomechanical model. These results were successfully transmitted into clinical practice. All children, treated by 3CL or 3CM according to the individual character of each fracture, needed no additional stabilization and had no Re-Do operations. As a consequence, at our hospital all children with femoral diaphyseal fractures with open physis are treated with this modified ESIN-technique. PMID:24397612

  14. [The application of air abrasion in dentistry].

    PubMed

    Mandinić, Zoran; Vulićević, Zoran R; Beloica, Milos; Radović, Ivana; Mandić, Jelena; Carević, Momir; Tekić, Jasmina

    2014-01-01

    One of the main objectives of contemporary dentistry is to preserve healthy tooth structure by applying techniques of noninvasive treatment. Air abrasion is a minimally invasive nonmechanical technique of tooth preparation that uses kinetic energy to remove carious tooth structure. A powerful narrow stream of moving aluminum-oxide particles hit the tooth surface and they abrade it without heat, vibration or noise. Variables that affect speed of cutting include air pressure, particle size, powder flow, tip's size, angle and distance from the tooth. It has been proposed that air abrasion can be used to diagnose early occlusal-surface lesions and treat them with minimal tooth preparation using magnifier. Reported advantages of air abrasion include reduced noise, vibration and sensitivity. Air abrasion cavity preparations have more rounded internal contours than those prepared with straight burs. This may increase the longevity of placed restorations because it reduces the incidence of fractures and a consequence of decreased internal stresses. However, air abrasion cannot be used for all patients, i.e. in cases involving severe dust allergy, asthma, chronic obstructive lung disease, recent extraction or other oral surgery, open wounds, advanced periodontal disease, recent placement of orthodontic appliances and oral abrasions, or subgingival caries removal. Many of these conditions increase the risk of air embolism in the oral soft tissues. Dust control is a challenge, and it necessitates the use of rubber dam, high-volume evacuation, protective masks and safety eyewear for both the patient and the therapist. PMID:24684041

  15. Bone-grafting materials in implant dentistry.

    PubMed

    Misch, C E; Dietsh, F

    1993-01-01

    There are three classes of bone-grafting materials based upon the mode of action. Autogenous bone is an organic material and forms bone by osteogenesis, osteoinduction, and osteoconduction. Allografts such as demineralized freeze-dried bone are osteoinductive and osteoconductive and may be cortical and/or trabecular in nature. Alloplasts such as hydroxyapatite and tricalcium phosphate may be synthetic or natural, vary in size, and are only osteoconductive. They can be divided into three types based upon the porosity of the product and include dense, macroporous, and microporous materials. In addition, alloplastic materials may be crystalline or amorphous. These materials have different properties and therefore indications. The use of the three classes of materials in diverse combinations depends upon the size and topography of the bony defect. Small defects or defects with four walls of host bone can be repaired with alloplasts alone or allografts in combination with alloplasts. The loss of three or more bony walls mandates the addition of autogenous bone to the graft or the use of a small pore membrane. The larger the defect, the more autogenous bone is required. The different indications of bone substitutes are discussed as to their specific applications in implant dentistry. PMID:8142935

  16. Management of Pregnant Patient in Dentistry

    PubMed Central

    Kurien, Sophia; Kattimani, Vivekanand S; Sriram, Roopa Rani; Sriram, Sanjay Krishna; Rao V K, Prabhakara; Bhupathi, Anitha; Bodduru, Rupa Rani; N Patil, Namrata

    2013-01-01

    The purpose of this article is to update general dentists and maxillofacial surgeons in the perioperative management of the pregnant patient. Pregnancy results in physiologic changes in almost all organ systems in the body mediated mainly by hormones; which influences the treatment schedule. Understanding these normal changes is essential for providing quality care for pregnant women. The general principles that apply in this situation are discussed, followed by the relevant physiologic changes and their treatment implications, the risks of various medications to the mother and fetus, the management of concomitant medical problems in the pregnant patient, appropriate timing of oral and maxillofacial surgery during pregnancy, and management of emergencies during pregnancy. Information about the compatibility, complications, and excretion of the common drugs during pregnancy is provided. Guidelines for the management of a pregnant patient in the dental office are summarized. How to cite this article: Kurien S, Kattimani V S, Sriram R, Sriram S K, Prabhakar Rao V K, Bhupathi A, Bodduru R, Patil N N. Management of Pregnant Patient in Dentistry. J Int Oral Health 2013; 5(1):88-97. PMID:24155583

  17. Ceramics in Restorative and Prosthetic DENTISTRY1

    NASA Astrophysics Data System (ADS)

    Kelly, J. Robert

    1997-08-01

    This review is intended to provide the ceramic engineer with information about the history and current use of ceramics in dentistry, contemporary research topics, and potential research agenda. Background material includes intra-oral design considerations, descriptions of ceramic dental components, and the origin, composition, and microstructure of current dental ceramics. Attention is paid to efforts involving net-shape processing, machining as a forming method, and the analysis of clinical failure. A rationale is presented for the further development of all-ceramic restorative systems. Current research topics receiving attention include microstructure/processing/property relationships, clinical failure mechanisms and in vitro testing, wear damage and wear testing, surface treatments, and microstructural modifications. The status of the field is critically reviewed with an eye toward future work. Significant improvements seem possible in the clinical use of ceramics based on engineering solutions derived from the study of clinically failed restorations, on the incorporation of higher levels of "biomimicry" in new systems, and on the synergistic developments in dental cements and adhesive dentin bonding.

  18. Overview of Deployed EDS Technologies

    SciTech Connect

    Martz, H E; Crawford, C

    2009-09-24

    The term explosive detection system (EDS) is used by the TSA to describe equipment that is certified to detect explosives in checked bags. The EDS, as certified, by the TSL must consist of device for interrogating a bag and an automated detection algorithm (ATD) for evaluating the results of the interrogation. We only consider CT as the interrogation device in this report. A schematic drawing of a CT-based EDS is shown in Figure 2. The output of the ATD is the binary decision of alarm or non-alarm. Alarms may true- or false-positives. Non-alarms may be true- or false-negatives. False positives are also denoted false alarms. The true detection means that the ATD reports an alarm when a threat is present in the scanned bag. The probability of detecting a threat given that a threat is present is denoted the probability of detection (PD). The probability of false alarm (PFA) is the case when an alarm is reported when a threat is not present in a bag. Certification in this context means passing tests for PD and PFA at the TSL. The results of the EDS include CT cross-sectional images of the bag and specifics about the alarmed objects generated by ATD. These results are presented on a display so that a person may override the decision of ATD and declare the alarm to be a non-alarm. This process is denoted clearing. Bags that are not cleared by the person are sent to a secondary inspection process. Here the bags may be opened or assessed with explosive trace detection (ETD) in order to clear the bags. Bags that are not cleared at this point are evaluated by an ordinance disposal team. The CT scanner along with ATD is denoted Level 1 screening. The process of clearing on a display is denoted Level 2 screening. Secondary inspection is denoted Level 3 screening. Vendors of the deployed EDSs supply the TSA with equipment for all three levels. Therefore, the term EDS may include the equipment provided for Levels 1, 2 and 3. A schematic diagram of an EDS and the levels of screening are shown in Figure 7. The decision processes used as a bag is scanned and cleared is shown in Figure 8. Shield alarms and exceptions are discussed below. Since most alarms are false alarms, the probability of alarm is often times denoted the probability of a false alarm. The expenses associated with clearing false alarms occur in Levels 2 and 3.

  19. Efficacy of a 3rd generation high-throughput sequencing platform for analyses of 16S rRNA genes from environmental samples.

    PubMed

    Mosher, Jennifer J; Bernberg, Erin L; Shevchenko, Olga; Kan, Jinjun; Kaplan, Louis A

    2013-11-01

    Longer sequences of the bacterial 16S rRNA gene could provide greater phylogenetic and taxonomic resolutions and advance knowledge of population dynamics within complex natural communities. We assessed the accuracy of a Pacific Biosciences (PacBio) single molecule, real time (SMRT) sequencing based on DNA polymerization, a promising 3rd generation high-throughput technique, and compared this to the 2nd generation Roche 454 pyrosequencing platform. Amplicons of the 16S rRNA gene from a known isolate, Shewanella oneidensis MR1, and environmental samples from two streambed habitats, rocks and sediments, and a riparian zone soil, were analyzed. On the PacBio we analyzed ~500 bp amplicons that covered the V1-V3 regions and the full 1500 bp amplicons of the V1-V9 regions. On the Roche 454 we analyzed the ~500 bp amplicons. Error rates associated with the isolate were lowest with the Roche 454 method (2%), increased by more than 2-fold for the 500 bp amplicons with the PacBio SMRT chip (4-5%), and by more than 8-fold for the full gene with the PacBio SMRT chip (17-18%). Higher error rates with the PacBio SMRT chip artificially inflated estimates of richness and lowered estimates of coverage for environmental samples. The 3rd generation sequencing technology we evaluated does not provide greater phylogenetic and taxonomic resolutions for studies of microbial ecology. PMID:23999276

  20. The development and practice of social dentistry in Germany.

    PubMed

    Nippert, R P

    1992-01-01

    The traditions of social dentistry in Germany represent early forms of dental public health development. It was promoted in dental care facilities where salaried dentists delivered services to target groups, i.e., schoolchildren and sickness fund members. They enabled larger numbers of patients to receive dental care, especially those of lower class origin who otherwise would have remained untreated because of lack of financial resources or scarcity of manpower. School dental clinics not only delivered dental treatment, but also distributed oral hygiene and nutritional information to school-aged children. Social dentistry in the prefluoride era in Germany pursued an egalitarian and social-class oriented concept of dental care delivery, aiming at compensating the detrimental effects that the private practice-based, fee-for-service financed dental care system had produced in the lower classes of the population. The impact of the Nazi regime nearly abolished the institutions of social dentistry. They never were restored in West Germany after World War II. In East Germany dental care had been organized according to traditions of social dentistry, i.e., delivering services in dental treatment centers. Since the unification of the two German states, the institutions of dental care delivery in former East Germany have been restructured to fit the private practice-based model of former West Germany, eliminating most of the social dentistry institutions in the country. PMID:1404078

  1. A new paradigm for operative dentistry

    PubMed Central

    Mount, Graham J

    2008-01-01

    It is over 100 years since G V black gathered together most of the knowledge then current on the caries process and set clear parameters for the discipline of operative dentistry. His four-volume treatise set standards that were relevant for the times and, in fact, were so well described that they remained dominant in this discipline until quite recently. However, over the last 50 years there has been great progress in scientific method and in knowledge of the common diseases of the oral environment, including the caries process, so maybe it is time for change. The term “paradigm” describes a philosophy of science, a generally accepted model of how ideas relate to one another, forming a conceptual framework within which scientific research is carried out. Black defined the paradigm within which further research was to be conducted during the following years and the profession accepted his lead. However, it is not expected that the parameters of a profession should remain unchanged over a substantial period so it is suggested that the dental profession should, at this time, recognize a new paradigm. Improvements in scientific method have led to a better understanding of the oral environment, resulting in extensive changes for this profession. It is suggested that the standards set by Black should be now consigned to history and an entirely new paradigm adopted. First, the profession must recognize that dental caries is a bacterial disease and its primary efforts should be directed towards identification and elimination of the disease prior to initiating repair of the damage that it has caused. Preservation of natural tooth structure is then the next responsibility. There should be maximum use made of preventive strategies, including remineralization, followed by minimal intervention cavity designs and the use of bioactive restorative materials to restore the lesions. The profession should be prepared to move on. PMID:20142877

  2. Dental education and dentistry system in Iran.

    PubMed

    Pakshir, Hamid Reza

    2003-01-01

    Before 1979, there were only 5 undergraduate dental schools in Iran with a total admission of 200 students per year, and only 2,000 dentists and about 50 specialists practicing in the country. Currently, there are 18 dental schools with a total admission of 750 undergraduate students, 5 postgraduate programs in 10 disciplines with a total of 100 students, more than 11,000 dentists (1 dentist per 5,500 population) and nearly 1,000 specialists in the country. Two new schools have recently begun offering specialty training courses in 2 disciplines. The length of the dentistry curriculum is 6 years. Students take general and basic science courses during the first 2 years, then continue on the predental and dental courses for the remaining 4 years. The curriculum has been revised over the past 20 years to establish intership and specialty programs and introduce courses reflecting current trends in the dental profession. Dental services in Iran are provided by both public and private sectors. Oral health care was integrated into the Public Health Care network by 1997, and 4 levels of a Dental Health Care Delivery System were established. The first level is concerned with primary prevention at 'health houses', where auxiliary health workers called 'behvarzes' provide periodic examinations, referrals, and oral health education. At the next level, oral hygienists and dentists in 'health centers' perform basic oral health care services such as fillings, scaling, and extraction. At the third level, dentists manage and treat oral diseases in 'urban health centers', while the last level is for advanced treatment by specialists in university health centers in the cities. PMID:12707502

  3. Patient Stratification for Preventive Care in Dentistry

    PubMed Central

    Giannobile, W.V.; Braun, T.M.; Caplis, A.K.; Doucette-Stamm, L.; Duff, G.W.; Kornman, K.S.

    2013-01-01

    Prevention reduces tooth loss, but little evidence supports biannual preventive care for all adults. We used risk-based approaches to test tooth loss association with 1 vs. 2 annual preventive visits in high-risk (HiR) and low-risk (LoR) patients. Insurance claims for 16 years for 5,117 adults were evaluated retrospectively for tooth extraction events. Patients were classified as HiR for progressive periodontitis if they had ≥ 1 of the risk factors (RFs) smoking, diabetes, interleukin-1 genotype; or as LoR if no RFs. LoR event rates were 13.8% and 16.4% for 2 or 1 annual preventive visits (absolute risk reduction, 2.6%; 95%CI, 0.5% to 5.8%; p = .092). HiR event rates were 16.9% and 22.1% for 2 and 1 preventive visits (absolute risk reduction, 5.2%; 95%CI, 1.8% to 8.4%; p = .002). Increasing RFs increased events (p < .001). Oral health care costs were not increased by any single RF, regardless of prevention frequency (p > .41), but multiple RFs increased costs vs. no (p < .001) or 1 RF (p = .001). For LoR individuals, the association between preventive dental visits and tooth loss was not significantly different whether the frequency was once or twice annually. A personalized medicine approach combining gene biomarkers with conventional risk factors to stratify populations may be useful in resource allocation for preventive dentistry (ClinicalTrials.gov, NCT01584479). PMID:23752171

  4. Transcutaneous electric nerve stimulation (TENS) in dentistry- A review

    PubMed Central

    Gupta, Aditi; Ladda, Ruchi; Kathariya, Mitesh; Saluja, Harish; Farooqui, Anjum-Ara

    2014-01-01

    Transcutaneous electric nerve stimulation (TENS) is a non-pharmacological method which is widely used by medical and paramedical professionals for the management of acute and chronic pain in a variety of conditions. Similarly, it can be utilized for the management of pain during various dental procedures as well as pain due to various conditions affecting maxillofacial region. This review aims to provide an insight into clinical research evidence available for the analgesic and non analgesic uses of TENS in pediatric as well as adult patients related to the field of dentistry. Also, an attempt is made to briefly discuss history of therapeutic electricity, mechanism of action of TENS, components of TENs equipment, types, techniques of administration, advantages and contradictions of TENS. With this we hope to raise awareness among dental fraternity regarding its dental applications thereby increasing its use in dentistry. Key words:Dentistry, pain, TENS. PMID:25674327

  5. Adaptive and Effortful Control and Academic Self-efficacy Beliefs on Achievement: A Longitudinal Study of 1st through 3rd Graders

    PubMed Central

    Liew, Jeffrey; McTigue, Erin; Barrois, Lisa; Hughes, Jan

    2009-01-01

    The linkages between self-regulatory processes and achievement were examined across three years in 733 children beginning at 1st grade (M = 6.57 years, SD = .39 at 1st grade) who were identified as lower achieving in literacy. Accounting for consistencies in measures (from one year prior) and for influences of child’s age, gender, IQ, ethnicity and economic adversity on achievement, results indicate that adaptive/effortful control at 1st grade contributed to both academic self-efficacy beliefs at 2nd grade, and reading (but not math) achievement at 3rd grade. Although academic self-efficacy did not partially mediate the linkage between adaptive/effortful control and achievement, academic self-efficacy beliefs were positively correlated with reading and math. Results support the notion that early efforts to promote children’s self-regulatory skills would enhance future academic self-beliefs and achievement, particularly in literacy. PMID:19169387

  6. X-ray holographic microscopy with zone plates applied to biological samples in the water window using 3rd harmonic radiation from the free-electron laser FLASH.

    PubMed

    Gorniak, T; Heine, R; Mancuso, A P; Staier, F; Christophis, C; Pettitt, M E; Sakdinawat, A; Treusch, R; Guerassimova, N; Feldhaus, J; Gutt, C; Grübel, G; Eisebitt, S; Beyer, A; Gölzhäuser, A; Weckert, E; Grunze, M; Vartanyants, I A; Rosenhahn, A

    2011-06-01

    The imaging of hydrated biological samples - especially in the energy window of 284-540 eV, where water does not obscure the signal of soft organic matter and biologically relevant elements - is of tremendous interest for life sciences. Free-electron lasers can provide highly intense and coherent pulses, which allow single pulse imaging to overcome resolution limits set by radiation damage. One current challenge is to match both the desired energy and the intensity of the light source. We present the first images of dehydrated biological material acquired with 3rd harmonic radiation from FLASH by digital in-line zone plate holography as one step towards the vision of imaging hydrated biological material with photons in the water window. We also demonstrate the first application of ultrathin molecular sheets as suitable substrates for future free-electron laser experiments with biological samples in the form of a rat fibroblast cell and marine biofouling bacteria Cobetia marina. PMID:21716334

  7. From challenges to solutions. European Bioanalysis Forum 3rd Annual Open Symposium, Hesperia Towers, Barcelona, Spain, 1-3 December 2010.

    PubMed

    Abbott, Richard W; Gordon, Ben; van Amsterdam, Peter; Lausecker, Berthold; Brudny-Kloeppel, Margarete; Smeraglia, John; Romero, Fernando; Globig, Susanne; Golob, Michaela; Knutsson, Magnus; Herling, Christian; Vieser, Eva; Timmerman, Philip

    2011-04-01

    The European Bioanalysis Forum is a bioanalytical nonprofit organization comprised of European pharmaceutical companies (27 members to date) and currently expanding to include CROs as well. The European Bioanalysis Forum provides a broad European bioanalytical network for the discussion of scientific, technological and regulatory topics of bioanalytical interest. The 3rd Annual Open Symposium was again much anticipated after the two previous successful meetings. The symposium included sessions on thinking outside the 'commodity' box, bioanalytical challenges with blood, global harmonization, assay platforms, dried blood spots, immunogenicity, matrix effects, anomalous results, biomarkers and two plenary technology sessions hosted by the Platinum sponsors. Experts and key opinion leaders were invited as guest speakers. A total of 424 delegates registered from 113 companies representing a large percentage of the European bioanalytical community. In addition to 48 oral presentations, 88 posters were presented and there was a vendor exposition of 40 companies. PMID:21510756

  8. [3rd generation's TKI in lung cancer non-small cell EGFR-mutated having acquired a secondary T790M resistance].

    PubMed

    Brosseau, Solenn; Viala, Marie; Varga, Andra; Planchard, David; Besse, Benjamin; Soria, Jean-Charles

    2015-09-01

    Activating EGFR mutations discovery and efficacy of 1st generation tyrosine kinase inhibitors (TKI), such as erlotinib or gefitinib, inaugurated the beginning of personalized medicine in the treatment of EGFR-mutated non-small cell lung cancer (NSCLC). However, all patients showed a tumor progression of 10 to 16 months after the onset of TKI therapy related to molecular resistance mechanisms as T790M mutation. Till now, patients suffering from EGFR-mutated NSCLC with acquired resistance have conventional treatment options. Two new 3rd generations' TKI, AZD9291 and rociletinib, are currently being studied in phases 1-3 studies. Preliminary results show relevant therapeutic properties in patients with T790M mutated-EGFR NSCLC. This review aims to highlight these new molecules, their effectiveness and their clinical toxicities in the treatment of advanced stages of NSCLC expressing the T790M mutation. PMID:26235419

  9. Limbic system development underlies the emergence of classical fear conditioning during the 3rd and 4th weeks of life in the rat

    PubMed Central

    Deal, Alex L.; Erickson, Kristen J.; Shiers, Stephanie I.; Burman, Michael A.

    2016-01-01

    Classical fear conditioning creates an association between an aversive stimulus and a neutral stimulus. Although the requisite neural circuitry is well understood in mature organisms, the development of these circuits is less well studied. The current experiments examine the ontogeny of fear conditioning and relate it to neuronal activation assessed through immediate early gene (IEG) expression in the amygdala, hippocampus, perirhinal cortex, and hypothalamus of periweanling rats. Rat pups were fear conditioned, or not, during the 3rd or 4th weeks of life. Neuronal activation was assessed by quantifying expression of FBJ osteosarcoma oncogene (FOS) using immunohistochemistry (IHC) in Experiment 1. Fos and early growth response gene-1 (EGR1) expression was assessed using qRT-PCR in Experiment 2. Behavioral data confirm that both auditory and contextual fear continue to emerge between PD 17 and 24. The IEG expression data are highly consistent with these behavioral results. IHC results demonstrate significantly more FOS protein expression in the basal amygdala of fear conditioned PD 23 subjects compared to control subjects, but no significant difference at PD 17. qRT-PCR results suggest specific activation of the amygdala only in older subjects during auditory fear expression. A similar effect of age and conditioning status was also observed in the perirhinal cortex during both contextual and auditory fear expression. Overall, the development of fear conditioning occurring between the 3rd and 4th weeks of life appears to be at least partly attributable to changes in activation of the amygdala and perirhinal cortex during fear conditioning or expression. PMID:26820587

  10. Hepatic Metastases is Associated with Poor Efficacy of Erlotinib as 2nd/3rd Line Therapy in Patients with Lung Adenocarcinoma

    PubMed Central

    He, Yayi; Wang, Yan; Boyle, Theresa; Ren, Shengxiang; Chan, Dan; Rivard, Chris; Li, Xuefei; Li, Jiayu; Zhou, Caicun; Hirsch, Fred R.

    2016-01-01

    Background Hepatocyte growth factor (HGF)-mediated mesenchymal-to-epithelial transition factor (MET) gene amplification is a common mechanism for acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs). MET gene amplification has also been associated with hepatic metastases in patients with lung cancer. The aim of this study was to investigate whether hepatic metastases are associated with decreased efficacy of erlotinib in patients with adenocarcinoma. Material/Methods A cohort of 329 patients with stage IV lung adenocarcinoma, known EGFR mutation status, and who received treatment with erlotinib in the 2nd or 3rd line setting were enrolled into this study over a period of 4 years between January 2011 and January 2015. The cohort was stratified based on the presence or absence of hepatic metastases and the efficacy of erlotinib was defined based on disease control rate (DCR) and progression-free survival (PFS). Results Hepatic metastases were present in 220 of the 329 enrolled lung adenocarcinoma patients. EGFR-activating mutations (exon 19 deletion or an exon 21 L858R mutation) were identified in 113 (34.3%) patients. The DCR was significantly lower in the hepatic metastases group than in patients without hepatic metastases (39.5% vs. 51.4% P=0.045). In patients with hepatic metastases, median PFS was 2.3 months in the EGFR mutation-positive group versus 1.4 months in the EGFR mutation-negative group (95% CI 1.3–3.3 vs. 1.3–1.5; P=0.055). Of note, erlotinib therapy in patients with hepatic metastases was complicated by elevated alanine transaminase (ALT) levels. Conclusions Hepatic metastasis in patients with lung adenocarcinoma predicts poor response to erlotinib as a 2nd/3rd line therapy. Combination therapy, for example with MET-TKI, may be a good choice for patients with liver metastases with poor prognosis. PMID:26811313

  11. Knowledge and institutional requirements to promote land degradation neutrality in drylands - An analysis of the outcomes of the 3rd UNCCD scientific conference

    NASA Astrophysics Data System (ADS)

    Akhtar-Schuster, Mariam; Safriel, Uriel; Abraham, Elena; de Vente, Joris; Essahli, Wafa; Escadafal, Richard; Stringer, Lindsay

    2015-04-01

    Achieving land degradation neutrality (LDN) through sustainable land management (SLM) targets the maintenance or restoration of the productivity of land, and therefore has to include decision-makers, knowledge generators and knowledge holders at the different relevant geographic scales. In order to enhance the implementation of the Convention, the Conference of the Parties (COP) of the United Nations Convention to Combat Desertification therefore decided that each future session of its Committee on Science and Technology (CST) would be organized in a predominantly scientific and technical conference-style format. This contribution will outline the major outcomes of UNCCD's 3rd scientific conference that will be held in Cancún, Mexico, from 9 to 12 March 2015, on addressing desertification, land degradation and drought issues (DLDD) for poverty reduction and sustainable development. The conference follows an exceptional new round table conference format that will allow the various stakeholders to discuss scientific as well as the contribution of traditional knowledge and practices in combating land degradation. This format should provide two-way communication and enable deeper insight into the availability and contribution of all forms of knowledge for achieving LDN through the assessment of: • the vulnerability of lands to DLDD and climate change and the adaptive capacities of socio-ecosystems; • best examples of adapted, knowledge-based practices and technologies; • monitoring and assessment methods to evaluate the effectiveness of adaptation practices and technologies. The outcomes of UNCCD's 3rd scientific conference will serve as a basis for discussing: • contributions of science to diagnose the status of land; • research gaps that need to be addressed to achieve LDN for poverty reduction; • additional institutional requirements to optimally bridge knowledge generation, knowledge maintenance and knowledge implementation at the science-policy interface.

  12. 76 FR 30951 - Advisory Committee on Training in Primary Care Medicine and Dentistry; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-27

    ... Care Medicine and Dentistry; Notice of Meeting In accordance with section 10(a)(2) of the Federal... Committee on Training in Primary Care Medicine and Dentistry (ACTPCMD). Date and Time: June 13, 2011, 1 p.m... Secretary, Division of Medicine and Dentistry, Bureau of Health Professions, Health Resources and...

  13. 77 FR 36550 - Advisory Committee on Training in Primary Care Medicine and Dentistry; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-19

    ... Care Medicine and Dentistry; Notice of Meeting In accordance with section 10(a)(2) of the Federal... Committee on Training in Primary Care, Medicine and Dentistry (ACTPCMD). Dates and Times: July 19, 2012, 8..., 2012, will begin with an update on the Division of Medicine and Dentistry's development of...

  14. Defining and Assessing Knowledge and Skill Outcomes in Undergraduate Pediatric Dentistry Education.

    ERIC Educational Resources Information Center

    Hanes, Carole M.

    1990-01-01

    Methods of assessing the general goals for the Pediatric Dentistry Department at the Medical College of Georgia School of Dentistry are discussed. Goals are: (1) to prepare dentists to provide comprehensive dental care for the pediatric patient; (2) to create positive attitudes toward pediatric dentistry; (3) to encourage students to seek to…

  15. 76 FR 64952 - Advisory Committee on Training in Primary Care Medicine and Dentistry; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-19

    ... Care Medicine and Dentistry; Notice of Meeting In accordance with section 10(a)(2) of the Federal... Committee on Training in Primary Care, Medicine and Dentistry . Dates and Times: November 7, 2011, 8:30 a.m.... Purpose: The Advisory Committee on Training in Primary Care Medicine and Dentistry (``Advisory...

  16. Modeling distributed feedback GaAs-based lasers in dentistry

    NASA Astrophysics Data System (ADS)

    Shih, Meng-Mu

    2012-01-01

    Distributed-feedback gallium-arsenide-based lasers with metal-gratings can generate stable wavelength at 980nm for applications in dentistry. This model uses the periodic optical waveguide method to calculate the coupling coefficient, which is a key parameter of laser performance. This model shows how the optical, geometrical, and material parameters depending on each other and how they affect the coupling coefficients in the laser waveguides. Numerical results compare the coupling coefficients of 980 nm lasers with those of 810 nm lasers. The modeling processes, including results, discussions, and physical interpretations, help to design and analyze lasers for more clinical and research applications in dentistry.

  17. The use of information and communication technology (ICT) in dentistry.

    PubMed

    Knott, N J

    2013-02-01

    As the use of information and communication technology (ICT) becomes more widespread in dentistry the risk of breaching electronic commerce laws and patient confidentiality increases. It is necessary to be aware of the responsibilities internet usage entails, especially within a dental practice where the protection of patient information is of the utmost importance. More should be done to outline the various precautions that should be taken to ensure ICT security within the professional domain, as it would appear dentistry has been neglected with regard to receiving the proper ICT education, training and support systems. PMID:23429122

  18. The Role of Virtual Articulator in Prosthetic and Restorative Dentistry

    PubMed Central

    Aljanakh, Mohammad

    2014-01-01

    Virtual reality is a computer based technology linked with the future of dentistry and dental practice. The virtual articulator is one such application in prosthetic and restorative dentistry based on virtual reality that will significantly reduce the limitations of the mechanical articulator, and by simulation of real patient data, allow analyses with regard to static and dynamic occlusion as well as to jaw relation. It is the purpose of this article to present the concepts and strategies for a future replacement of the mechanical articulator by a virtual one. Also, a brief note on virtual reality haptic system has been highlighted along with newly developed touch enabled virtual articulator. PMID:25177664

  19. Veterinary Microbiology, 3rd Edition

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Veterinary Microbiology, Third Edition is organized into four sections and begins with an updated and expanded introductory section on infectious disease pathogenesis, diagnosis and clinical management. The second section covers bacterial and fungal pathogens, and the third section describes viral d...

  20. Real time analysis under EDS

    SciTech Connect

    Schneberk, D.

    1985-07-01

    This paper describes the analysis component of the Enrichment Diagnostic System (EDS) developed for the Atomic Vapor Laser Isotope Separation Program (AVLIS) at Lawrence Livermore National Laboratory (LLNL). Four different types of analysis are performed on data acquired through EDS: (1) absorption spectroscopy on laser-generated spectral lines, (2) mass spectrometer analysis, (3) general purpose waveform analysis, and (4) separation performance calculations. The information produced from this data includes: measures of particle density and velocity, partial pressures of residual gases, and overall measures of isotope enrichment. The analysis component supports a variety of real-time modeling tasks, a means for broadcasting data to other nodes, and a great degree of flexibility for tailoring computations to the exact needs of the process. A particular data base structure and program flow is common to all types of analysis. Key elements of the analysis component are: (1) a fast access data base which can configure all types of analysis, (2) a selected set of analysis routines, (3) a general purpose data manipulation and graphics package for the results of real time analysis. Each of these components are described with an emphasis upon how each contributes to overall system capability. 3 figs.

  1. Mental Health Services in a School of Dentistry.

    ERIC Educational Resources Information Center

    Brown, James C.

    This paper presents a rationale for and description of psychological services in the areas of consultation and education for university dental students at the University of Mississippi School of Dentistry. The paper notes several factors pointing to the need for such services: first, while dental professionals and students are disinclined to seek

  2. Acquisition of a Touching Style in Dentistry: An Exploratory Study.

    ERIC Educational Resources Information Center

    Schifter, Catherine C.; Bogert, Meredith; Boston, Daniel

    This qualitative study explored the perceptions of dental students, faculty, and graduate students on the development of a sense of touch in dental practice. Eight focus groups were held: four were comprised of third-year dental students (n=22), two of advanced, general dentistry postgraduate students (n=11), and two of dental faculty (n=8). Each…

  3. Forensic dentistry in human identification: A review of the literature.

    PubMed

    Ata-Ali, Javier; Ata-Ali, Fadi

    2014-04-01

    An update is provided of the literature on the role of odontology in human identification, based on a PubMed-Medline search of the last 5 years and using the terms: "forensic dentistry" (n = 464 articles), "forensic odontology" (n = 141 articles) and "forensic dentistry identification" (n = 169 articles). Apart from these initial 774 articles, others considered to be important and which were generated by a manual search and cited as references in review articles were also included. Forensic dentistry requires interdisciplinary knowledge, since the data obtained from the oral cavity can contribute to identify an individual or provide information needed in a legal process. Furthermore, the data obtained from the oral cavity can narrow the search range of an individual and play a key role in the victim identification process following mass disasters or catastrophes. This literature search covering the last 5 years describes the novelties referred to buccodental studies in comparative identification, buccodental evaluation in reconstructive identification, human bites as a method for identifying the aggressor, and the role of DNA in dental identification. The oral cavity is a rich and noninvasive source of DNA, and can be used to solve problems of a social, economic or legal nature. Key words:Forensic identification, DNA, forensic dentistry, rugoscopy, cheiloscopy, saliva. PMID:24790717

  4. A Distance Learning Program in Advanced General Dentistry.

    ERIC Educational Resources Information Center

    Smith, Timothy A.; Raybould, Ted P.; Hardison, J. David

    1998-01-01

    Describes a University of Kentucky program in advanced general dentistry offered by compressed video and computer in remote areas of the state. Topics discussed include program development, the technology, instructional design principles used, student recruitment, program evaluation, student evaluation, faculty evaluation, laboratory exercises,…

  5. Ethics and dentistry: I. The meaning of ethics.

    PubMed

    Gelbier, S; Wright, D; Bishop, M

    2001-11-01

    This short series of two papers will examine the relationship between ethics and dentistry. The first paper explores the meaning of ethics; the second will provide a catalogue of primary sources for dental practitioners who wish to read further in order to gain a core of knowledge about dental ethics. PMID:11806191

  6. Advanced functional polymers for regenerative and therapeutic dentistry.

    PubMed

    Lai, W-F; Oka, K; Jung, H-S

    2015-07-01

    Use of ceramics and polymers continues to dominate clinical procedures in modern dentistry. Polymers have provided the basis for adhesives, tissue void fillers, and artificial replacements for whole teeth. They have been remarkably effective in the clinic at restoration of major dental functions after damage or loss of teeth. With the rapid development of polymer science, dental materials science has significantly lagged behind in harnessing these advanced polymer products. What they offer is new and unique properties superior to traditional polymers and crucially a range of properties that more closely match natural biomaterials. Therefore, we should pursue more vigorously the benefits of advanced polymers in dentistry. In this review, we highlight how the latest generation of advanced polymers will enhance the application of materials in the dental clinic using numerous promising examples. Polymers have a broad range of applications in modern dentistry. Some major applications are to construct frameworks that mimic the precise structure of tissues, to restore tooth organ function, and to deliver bioactive agents to influence cell behavior from the inside. The future of polymers in dentistry must include all these new enhancements to increase biological and clinical effectiveness beyond what can be achieved with traditional biomaterials. PMID:25098817

  7. Educational Outcomes: Their Impact on Graduate Pediatric Dentistry Education.

    ERIC Educational Resources Information Center

    Adair, Steven M.

    1990-01-01

    Six outcomes of professional competence that can be applied to postdoctoral pediatric dentistry training are: conceptual, contextual, technical, interpersonal communications, integrative, and adaptive competence. Questionnaire-type surveys are probably the best means of assessing the contextual, interpersonal, and adaptive competencies of

  8. Expert Opinions on Nutrition Issues in Clinical Dentistry.

    ERIC Educational Resources Information Center

    Palmer, Carole A.; And Others

    1990-01-01

    A survey of 79 experts in dental nutrition sought consensus on the appropriate scope of nutrition in clinical dentistry. Results support the need for greater attention to nutrition issues in dental schools and better models for nutrition interventions in dental practice. (Author/MSE)

  9. Dentistry in Brazil: its history and current trends.

    PubMed

    Saliba, Nemre Adas; Moimaz, Suzely Adas Saliba; Garbin, Cléa Adas Saliba; Diniz, Diego Garcia

    2009-02-01

    The objectives of this article are to provide a short history of dentistry and dental education in Brazil and to analyze the nature of its development to date. The databases consulted are those provided by the Brazilian Federal Council of Dentistry, Brazilian Ministry of Health, Brazilian Ministry of Education, National Institute of Studies and Educational Research Anísio Teixeira, and Brazilian Institute of Geography and Statistics. Formal dental education in Brazil started in the late nineteenth century with the creation of courses annexed to existing schools of medicine in Rio de Janeiro and Bahia. Today, there are 191 institutions of higher education nationwide granting degrees in dentistry (137 private [71.7 percent] and fifty-four public [28.3 percent]), with a total of 17,157 student positions offered annually. These schools graduate around 10,000 professionals per year-one of the highest rates in the world. Both the distribution of schools of dentistry and of dentists varies among the regions of the country, with the greatest concentrations in major metropolitan centers with high population density, resulting in limited coverage in the more deprived regions. A review of epidemiological data for oral health and distribution of dentists in Brazil indicates that there is a lack of systematic planning for the allocation of the dental workforce and a lack of consideration of regional needs in the development of dental training programs in Brazil today. PMID:19234079

  10. Military and VA General Dentistry Training: A National Resource.

    ERIC Educational Resources Information Center

    Atchison, Kathryn A.; Bachand, William; Buchanan, C. Richard; Lefever, Karen H.; Lin, Sylvia; Engelhardt, Rita

    2002-01-01

    Compared the program characteristics of the postgraduate general dentistry (PGD) training programs sponsored by the military and the Veterans Health Administration (VA). Gathered information on program infrastructure and emphasis, resident preparation prior to entering the program, and patients served and types of services provided. Programs…

  11. Critical Issues for Dentistry: PGD Program Directors Respond.

    ERIC Educational Resources Information Center

    Atchison, Kathryn A.; Cheffetz, Susan E.

    2002-01-01

    Surveyed directors of programs in postgraduate education in general dentistry (PGD) about critical issues facing their programs. Identified 12 themes: lack of postdoctoral applicants; student quality; professionalism and attitudes; number of postdoctoral positions; lack of funding; quality of facilities; special patient care; program curriculum;…

  12. University-Industry Relationships in Dentistry: Past, Present, Future.

    ERIC Educational Resources Information Center

    Barnett, Michael L.

    2002-01-01

    Presents an overview of the evolution of academic-industry partnerships in dentistry and their value to each of the partners; discusses details to be considered by investigators seeking to work with industry; and reviews some of the issues and dilemmas that can arise from academic-industry interactions. (EV)

  13. Acquisition of Psychomotor Skills in Dentistry: An Experimental Teaching Method.

    ERIC Educational Resources Information Center

    Vann, William F., Jr.; And Others

    1981-01-01

    A traditional method of teaching psychomotor skills in a preclinical restorative dentistry laboratory course was compared with an experimental method. The experimental group was taught using a guided systematic approach that relied on detailed checklists and exhaustive faculty feedback. (Author/MLW)

  14. Attitudes of Operative Dentistry Faculty toward Rubber Dam Isolation.

    ERIC Educational Resources Information Center

    Brackett, William W.; And Others

    1989-01-01

    Dental faculty responses (N=332) to a survey concerning use of rubber dams for excluding fluids from the working field in operative dentistry procedures indicated students receive adequate instruction in rubber dam use and are proficient at graduation, though motivating students to its use is problematic and patient resistance a factor. (MSE)

  15. Healthcare-associated viral and bacterial infections in dentistry

    PubMed Central

    Laheij, A.M.G.A.; Kistler, J.O.; Belibasakis, G.N.; Välimaa, H.; de Soet, J.J.

    2012-01-01

    Infection prevention in dentistry is an important topic that has gained more interest in recent years and guidelines for the prevention of cross-transmission are common practice in many countries. However, little is known about the real risks of cross-transmission, specifically in the dental healthcare setting. This paper evaluated the literature to determine the risk of cross-transmission and infection of viruses and bacteria that are of particular relevance in the dental practice environment. Facts from the literature on HSV, VZV, HIV, Hepatitis B, C and D viruses, Mycobacterium spp., Pseudomonas spp., Legionella spp. and multi-resistant bacteria are presented. There is evidence that Hepatitis B virus is a real threat for cross-infection in dentistry. Data for the transmission of, and infection with, other viruses or bacteria in dental practice are scarce. However, a number of cases are probably not acknowledged by patients, healthcare workers and authorities. Furthermore, cross-transmission in dentistry is under-reported in the literature. For the above reasons, the real risks of cross-transmission are likely to be higher. There is therefore a need for prospective longitudinal research in this area, to determine the real risks of cross-infection in dentistry. This will assist the adoption of effective hygiene procedures in dental practice. PMID:22701774

  16. Mental Health Services in a School of Dentistry.

    ERIC Educational Resources Information Center

    Brown, James C.

    This paper presents a rationale for and description of psychological services in the areas of consultation and education for university dental students at the University of Mississippi School of Dentistry. The paper notes several factors pointing to the need for such services: first, while dental professionals and students are disinclined to seek…

  17. Educational Outcomes: Their Impact on Graduate Pediatric Dentistry Education.

    ERIC Educational Resources Information Center

    Adair, Steven M.

    1990-01-01

    Six outcomes of professional competence that can be applied to postdoctoral pediatric dentistry training are: conceptual, contextual, technical, interpersonal communications, integrative, and adaptive competence. Questionnaire-type surveys are probably the best means of assessing the contextual, interpersonal, and adaptive competencies of…

  18. Critical Issues for Dentistry: PGD Program Directors Respond.

    ERIC Educational Resources Information Center

    Atchison, Kathryn A.; Cheffetz, Susan E.

    2002-01-01

    Surveyed directors of programs in postgraduate education in general dentistry (PGD) about critical issues facing their programs. Identified 12 themes: lack of postdoctoral applicants; student quality; professionalism and attitudes; number of postdoctoral positions; lack of funding; quality of facilities; special patient care; program curriculum;

  19. Does 3rd age plus 3rd world equal 3rd class?

    PubMed

    Tout, K

    1992-04-01

    The patterns of care of the aged population are being influenced by demographic changes, migration, and industrialization in developing countries. There is no longer a secure place for the elders in the community as chiefs, sages, or useful members of the household. In very large mega-cities the aged living in an extended family are more prone to psychological problems than in a lone living situation. There are many variations in the degree of abandonment or loss of dignity, which are described in examples from Vilcabamba, Potosi, Lima, and Belize. For example in Belize, there are no cities to migrate to so people leave to seek their fortunes in the US or the UK. Solutions are possible within the community. The experiences of HelpAge International are reported for Pro Vida, Colombia; India; and Sri Lanka. In Colombia efforts were made to acquire a bakery so that the elderly could be employed in bread baking, donating loaves to institutions, and selling half the loaves on the street. Other projects involved improving living conditions for lone old people in shanty towns and training social workers. The institutional aim was to concentrate on a locale. Attention was given to providing instruction in classrooms to enlighten youth about the needs of the elderly. HelpAge in India concentrated on eye problems of the elderly in remote areas through awareness and fundraising campaigns. HelpAge Sri Lanka has set up seminars and training programs which have been models for similar programs in Thailand. Shared experience with the problems of aged beggars suggests that funding must come from nongovernmental agencies. The cultivation and sale of herbs by the elderly was promoted in Vilcabamba; in Jamaica a memory bank was established for preserving cultural traditions. Abandoned industries have been revived. The needs of the organizers, who are primarily volunteers, are organization skills. Governments can supplement meager funds by enhancing traditional life, by removing obstacles to foreign aid, and by avoiding spending on prestige projects and questionable projects imported from Western countries. Reinforcement of families and of local community groups is needed. PMID:12286290

  20. A Kinesthetic Learning Approach to Earth Science for 3rd and 4th Grade Students on the Pajarito Plateau, Los Alamos, NM

    NASA Astrophysics Data System (ADS)

    Wershow, H. N.; Green, M.; Stocker, A.; Staires, D.

    2010-12-01

    Current efforts towards Earth Science literacy in New Mexico are guided by the New Mexico Science Benchmarks [1]. We are geoscience professionals in Los Alamos, NM who believe there is an important role for non-traditional educators utilizing innovative teaching methods. We propose to further Earth Science literacy for local 3rd and 4th grade students using a kinesthetic learning approach, with the goal of fostering an interactive relationship between the students and their geologic environment. We will be working in partnership with the Pajarito Environmental Education Center (PEEC), which teaches the natural heritage of the Pajarito Plateau to 3rd and 4th grade students from the surrounding area, as well as the Family YMCA’s Adventure Programs Director. The Pajarito Plateau provides a remarkable geologic classroom because minimal structural features complicate the stratigraphy and dramatic volcanic and erosional processes are plainly on display and easily accessible. Our methodology consists of two approaches. First, we will build an interpretive display of the local geology at PEEC that will highlight prominent rock formations and geologic processes seen on a daily basis. It will include a simplified stratigraphic section with field specimens and a map linked to each specimen’s location to encourage further exploration. Second, we will develop and implement a kinesthetic curriculum for an exploratory field class. Active engagement with geologic phenomena will take place in many forms, such as a scavenger hunt for precipitated crystals in the vesicles of basalt flows and a search for progressively smaller rhyodacite clasts scattered along an actively eroding canyon. We believe students will be more receptive to origin explanations when they possess a piece of the story. Students will be provided with field books to make drawings of geologic features. This will encourage independent assessment of phenomena and introduce the skill of scientific observation. We expect students to develop comprehension of basic geologic concepts and processes such as erosion and sediment transport, caldera formation, ash flows, crystallization and volcanic cooling features. More importantly, we hope students will become excited about their geologic environment and pursue further engagement. We will attempt to quantify student comprehension and engagement by administering simple questionnaires before and after exposure to both the PEEC display and the field class. ____________________________________________________________ [1] New Mexico Science Content Standards, Benchmarks, and Performance Standards. Approved 2003, New Mexico State Department of Education. 3rd Grade Benchmark: “Know that Earth’s features are constantly changed by a combination of slow and rapid processes that include the action of volcanoes, earthquakes, mountain building, biological changes, erosion, and weathering” 4th Grade Benchmark: “Know that the properties of rocks and minerals reflect the processes that shaped them (i.e., igneous, metamorphic, and sedimentary rocks)”

  1. Pulsed lasers in dentistry: sense or nonsense?

    NASA Astrophysics Data System (ADS)

    Koort, Hans J.; Frentzen, Matthias

    1991-05-01

    The great interest in the field of laser applications in dentistry provokes the question, if all these new techniques may really fulfill advantages, which are expected after initial in-vitro studies. Whereas laser surgery of soft oral tissues has been developed to a standard method, laser treatment of dental hard tissues and the bone are attended with many unsolved problems. Different laser types, especially pulsed lasers in a wide spectrum of wavelengths have been proofed for dental use. Today neither the excimer lasers, emitting in the far uv-range from 193 to 351 nm, nor the mid-infrared lasers like Nd:YAG (1,064 μm), Ho:YAG (2,1 μm) and Er:YAG (2,96 μm) or the C02-laser (10,6 μm) show mechanism of interaction more carefully and faster than a preparation of teeth with diamond drillers. The laser type with the most precise and considerate treatment effects in the moment is the short pulsed (15 ns) ArF-excimer laser with a wavelength of 193 nm. However this laser type has not yet the effectivity of mechanical instruments and it needs a mirror system to deliver the radiation. Histological results point out, that this laser shows no significant pathological alterations in the adjacent tissues. Another interesting excimer laser, filled with XeCI and emitting at a wavelength of 308 nm has the advantage to be good to deliver through quartz fibers. A little more thermal influence is to be seen according to the longer wavelength. Yet the energy density, necessary to cut dental hard tissues will not be reached with the laser systems available now. Both the pulsed Er:YAG- (2,94 μm, pulse duration 250 s) and the Ho:YAG -laser (2,1 μm, pulse duration 250 μs) have an effective coupling of the laser energy to hydrogeneous tissues, but they do not work sufficient on healthy enamel and dentine. The influence to adjacent healthy tissue is not tolerable, especially in regard of the thermal damage dentine and pulp tissues. Moreover, like the 193 nm ArF-excimer laser radiation the Er:YAG-laser radiation could also only be delivered via mirror systems, while the radiation of the Ho:YAG-Laser can be well transmitted through quartz fibers. The energy of the well known and in other medical disciplines often used Nd:YAG - laser (1,064 μm, pulse duration 150 us) laser can be transmitted through fiber systems without problems, but this laser has not the effectivity to work sufficient on healthy hard dental tissues due to the high transmission in mineralized dental tissues. The thermal injuries of this laser type are not tolerable. The short pulsed TEA-C02-laser (9,6 and 10,6 μm, pulse duration 200-300 ns), which has an excellent coupling not only to the hydrogeneous tissues but also to the mineralized tissues could be an alternative system to prepare dental tissues. The greatest disadvantage of this system is the noneffective delivery of the light energy through flexible fiber systems, which are still in development. Another good chance perhaps will have the q-switched Neodym, Erbium and Holmium:- YAG lasers with pulse durations of about some hundred ns. Both, possible thermal influences and possible disruptive effects should be small enough to let the adjacent tissues undamaged.

  2. Instability of EDS maglev systems

    SciTech Connect

    Cai, Y.; Chen, S.S.

    1993-09-01

    Instabilities of an EDS maglev suspension system with 3 D.O.F. and 5 D.O.F. vehicles traveling on a double L-shaped set of guideway conductors have been investigated with various experimentally measured magnetical force data incorporated into the theoretical models. Divergence and flutter are obtained from both analytical and numerical solutions for coupled vibration of the 3 D.O.F. maglev vehicle model. Instabilities of five direction motions (heave, slip, rill, pitch and yaw) are observed for the 4 D.O.F. vehicle model. It demonstrates that system parameters, such as, system damping, vehicle geometry and coupling effects among five different motions play very important roles in the occurrence of dynamic instabilities of maglev vehicles.

  3. Sunphotometric Measurement of Columnar H2O and Aerosol Optical Depth During the 3rd Water Vapor IOP in Fall 2000 at the SGP ARM Site

    NASA Technical Reports Server (NTRS)

    Schmid, B; Eilers, J. A.; McIntosh, D. M.; Longo, K.; Livingston, J. M.; Redemann, J.; Russell, P. B.; Braun, J.; Rocken, C.; Hipskind, R. Stephen (Technical Monitor)

    2001-01-01

    We conducted ground-based measurements with the Ames Airborne Tracking 6-channel Sunphotometer (AATS-6) during the 3rd Water Vapor IOP (WVIOP3), September 18 - October 8, 2000 at the SGP ARM site. For this deployment our primary result was columnar water vapor (CWV) obtained from continuous solar transmittance measurements in the 0.94-micron band. In addition, we simultaneously measured aerosol optical depth (AOD) at 380, 450, 525, 864 and 1020 nm. During the IOP, preliminary results of CWV and AOD were displayed in real-time. The result files were made available to other investigators by noon of the next day. During WVIOP3 those data were shown on the daily intercomparison plots on the IOP web-site. Our preliminary results for CWV fell within the spread of values obtained from other techniques. After conclusion of WVIOP3, AATS-6 was shipped directly to Mauna Loa, Hawaii for post-mission calibration. The updated calibration, a cloud screening technique for AOD, along with other mostly cosmetic changes were applied to the WVIOP3 data set and released as version 0.1. The resulting changes in CWV are small, the changes in AOD and Angstrom parameter are more noticeable. Data version 0.1 was successfully submitted to the ARM External Data Center. In the poster we will show data examples for both CWV and AOD. We will also compare our CWV results with those obtained from a GPS (Global Positioning System) slant path method.

  4. [Teaching arthroscopy techniques at the Educational Center for Clinical Anatomy and Endoscopy (ECAE), Department of Anatomy, 3rd Faculty of Medicine, Charles University in Prague].

    PubMed

    Bca, V; Doubkov, A; Kachlk, D; Stingl, J; Svatos, F

    2006-10-01

    In the period from 2000 to 2005, with support of several grants, a unique multi-media center for teaching endoscopic techniques was established at the Department of Anatomy, 3rd Faculty of Medicine, Charles University in Prague. This conditions have been provided for the repeated use of cadavers preserved by a special embalming method of Professor Thiel of the Institute for Anatomy, University of Graz, for simulation of surgical procedures. One room of the Department has been converted into a small operating theatre and an audio-visual network with wireless Internet connection covers the whole dissection unit of the Department. A graphic studio for production of teaching materials has also been set up. The course in dissection for the first- and second-year medical students also includes demo arthroscopy. In addition to the courses for students, postgraduate courses for young surgeons are organized. These provide an opportunity to learn about techniques and instruments employed in a broad range of arthroscopic procedures, using appropriate cadaver materials. PMID:17140520

  5. Stable Isotope and Trace Element Studies on Gladiators and Contemporary Romans from Ephesus (Turkey, 2nd and 3rd Ct. AD) - Implications for Differences in Diet

    PubMed Central

    Lösch, Sandra; Moghaddam, Negahnaz; Grossschmidt, Karl; Risser, Daniele U.; Kanz, Fabian

    2014-01-01

    The gladiator cemetery discovered in Ephesus (Turkey) in 1993 dates to the 2nd and 3rd century AD. The aim of this study is to reconstruct diverse diet, social stratification, and migration of the inhabitants of Roman Ephesus and the distinct group of gladiators. Stable carbon, nitrogen, and sulphur isotope analysis were applied, and inorganic bone elements (strontium, calcium) were determined. In total, 53 individuals, including 22 gladiators, were analysed. All individuals consumed C3 plants like wheat and barley as staple food. A few individuals show indication of consumption of C4 plants. The δ13C values of one female from the gladiator cemetery and one gladiator differ from all other individuals. Their δ34S values indicate that they probably migrated from another geographical region or consumed different foods. The δ15N values are relatively low in comparison to other sites from Roman times. A probable cause for the depletion of 15N in Ephesus could be the frequent consumption of legumes. The Sr/Ca-ratios of the gladiators were significantly higher than the values of the contemporary Roman inhabitants. Since the Sr/Ca-ratio reflects the main Ca-supplier in the diet, the elevated values of the gladiators might suggest a frequent use of a plant ash beverage, as mentioned in ancient texts. PMID:25333366

  6. The perceptions of professional soccer players on the risk of injury from competition and training on natural grass and 3rd generation artificial turf

    PubMed Central

    2014-01-01

    Background The purpose of this study was to describe professional soccer players’ perceptions towards injuries, physical recovery and the effect of surface related factors on injury resulting from soccer participation on 3rd generation artificial turf (FT) compared to natural grass (NG). Methods Information was collected through a questionnaire that was completed by 99 professional soccer players from 6 teams competing in Major League Soccer (MLS) during the 2011 season. Results The majority (93% and 95%) of the players reported that playing surface type and quality influenced the risk of sustaining an injury. Players believed that playing and training on FT increased the risk of sustaining a non-contact injury as opposed to a contact injury. The players identified three surface related risk factors on FT, which they related to injuries and greater recovery times: 1) Greater surface stiffness 2) Greater surface friction 3) Larger metabolic cost to playing on artificial grounds. Overall, 94% of the players chose FT as the surface most likely to increase the risk of sustaining an injury. Conclusions Players believe that the risk of injury differs according to surface type, and that FT is associated with an increased risk of non-contact injury. Future studies should be designed prospectively to systematically track the perceptions of groups of professional players training and competing on FT and NG. PMID:24581229

  7. Discover Dentistry: encouraging wider participation in dentistry using a massive open online course (MOOC).

    PubMed

    Stokes, C W; Towers, A C; Jinks, P V; Symington, A

    2015-07-24

    This paper describes how a relatively new style of online learning, a massive open online course (MOOC), may be used to raise aspirations and widen participation in dental professions. A MOOC was designed and run with the aim of engaging prospective students of dental professions in learning and discussion. Over 4,200 learners signed up, and 450 students fully completed this first run of the course. The course attracted a significantly younger demographic than is typical for MOOCs, and nearly a third who responded to the pre-course survey reported they were doing the course specifically as preparation for a dental degree. The approach also provided a platform for public engagement on the subject of dentistry with participants, both dental professionals and members of the public, contributing to discussion around the learning materials from around the world, providing a unique, internationalised perspective of oral healthcare for learners. This study shows that there is genuine potential for MOOCs to involve people from disadvantaged backgrounds in higher education by offering free, accessible, enjoyable and engaging educational experiences. The data gives us cautious optimism that these courses can play a significant role within a platform of other WP interventions. PMID:26205936

  8. The EdVisions "Dreamscape" Evaluation Plan

    ERIC Educational Resources Information Center

    Newell, Ron

    2009-01-01

    This article describes the "dreamscape" as EdVisions Schools moves forward as an education development organization. "Dreamscape" refers to the goals leaders have developed for the network of more than 40 Edvisions schools nationwide. In this article, the author describes the evolution of objectives for EdVisions school sites and the development…

  9. Hypohidrotic Ectodermal Dysplasia (ED): A Case Series.

    PubMed

    Kishore, Mallika; Panat, Sunil R; Aggarwal, Ashish; Agarwal, Nupur; Upadhyay, Nitin; Ajai, Kratika; Alok, Abhijeet

    2014-01-01

    ECTODERMAL DYSPLASIA (ED) IS A RARE DISORDER WITH DEFECTS IN TWO OR MORE OF THE FOLLOWING STRUCTURES: the teeth and the skin and its appendages including hair, nails, eccrine, and sebaceous glands. Dental manifestations include hypodontia, complete anodontia or malformed teeth. The most common form of the ED syndrome is hypohidrotic ED and is usually inherited as an X-linked recessive trait. Female carriers may have a variable degree of clinical manifestations. The condition is thought to occur in approximately 1 in every 100,000 live births. Dental treatment for these patients varies on an individual basis. Children with ED are often treated dentally with conventional adult appearing prosthesis which are focused only on the oral manifestations of the syndrome. We are here reporting two classical cases of hypohidrotic ED with a review of the literature. PMID:24596794

  10. Hypohidrotic Ectodermal Dysplasia (ED): A Case Series

    PubMed Central

    Kishore, Mallika; Panat, Sunil R.; Aggarwal, Ashish; Agarwal, Nupur; Upadhyay, Nitin; Ajai, Kratika; Alok, Abhijeet

    2014-01-01

    Ectodermal Dysplasia (ED) is a rare disorder with defects in two or more of the following structures: the teeth and the skin and its appendages including hair, nails, eccrine, and sebaceous glands. Dental manifestations include hypodontia, complete anodontia or malformed teeth. The most common form of the ED syndrome is hypohidrotic ED and is usually inherited as an X-linked recessive trait. Female carriers may have a variable degree of clinical manifestations. The condition is thought to occur in approximately 1 in every 100,000 live births. Dental treatment for these patients varies on an individual basis. Children with ED are often treated dentally with conventional adult appearing prosthesis which are focused only on the oral manifestations of the syndrome. We are here reporting two classical cases of hypohidrotic ED with a review of the literature. PMID:24596794

  11. Current overview on dental stem cells applications in regenerative dentistry

    PubMed Central

    Bansal, Ramta; Jain, Aditya

    2015-01-01

    Teeth are the most natural, noninvasive source of stem cells. Dental stem cells, which are easy, convenient, and affordable to collect, hold promise for a range of very potential therapeutic applications. We have reviewed the ever-growing literature on dental stem cells archived in Medline using the following key words: Regenerative dentistry, dental stem cells, dental stem cells banking, and stem cells from human exfoliated deciduous teeth. Relevant articles covering topics related to dental stem cells were shortlisted and the facts are compiled. The objective of this review article is to discuss the history of stem cells, different stem cells relevant for dentistry, their isolation approaches, collection, and preservation of dental stem cells along with the current status of dental and medical applications. PMID:25810631

  12. Professionals complementary to dentistry: the expanding role of PCDs.

    PubMed

    McGlashan, Gregor; Watson, David J; Shanks, Susan

    2004-11-01

    The role of Professionals Complementary to Dentistry is increasing in importance as new ways of exploring dental service provision are considered. Skill-mix and team-building are not just buzzwords, but signify the new view of a multidisciplinary approach in healthcare. Since the Nuffield and DARG reports of the last decade urged consideration of manpower issues within dentistry, the ensuing change from often small, single-handed practice, to larger team approaches has resulted in significant changes in service delivery. It is unsurprising that the bewildered practitioner can become lost in the mire of proposed new regulations. Outlining the current developments in the expanding role of PCDs, this paper illustrates the dynamic nature of the changes. PMID:15612459

  13. Er:YAG and adhesion in conservative dentistry : clinical overview

    PubMed Central

    Fornaini, Carlo

    2013-01-01

    The notion of utilizing laser technology in conservative dentistry was proposed in 1990 by Hibst and Keller, who introduced the possibility of using an Er:YAG laser as alternative to conventional instruments such as the turbine and micro-motor. In subsequent years a continuing effort has been made by clinicians, researchers and commercial companies to improve the technology. The aim of this clinical study is to demonstrate, by the description of different clinical cases, the possibilities and the advantages of using Er:YAG lasers in conservative dentistry and to show that better results may be achieved in terms of stronger adhesion, less invasiveness, reduced pain as well as greater comfort and satisfaction of patients. PMID:24155547

  14. Finite-element modeling and analysis in nanomedicine and dentistry.

    PubMed

    Choi, Andy H; Conway, Richard C; Ben-Nissan, Besim

    2014-08-01

    This article aims to provide a brief background to the current applications of finite-element analysis (FEA) in nanomedicine and dentistry. FEA was introduced in orthopedic biomechanics in the 1970s in order to assess the stresses and deformation in human bones during functional loadings and in the design and analysis of implants. Since then, it has been applied with great frequency in orthopedics and dentistry in order to analyze issues such as implant design, bone remodeling and fracture healing, the mechanical properties of biomedical coatings on implants and the interactions at the bone-implant interface. More recently, FEA has been used in nanomedicine to study the mechanics of a single cell and to gain fundamental insights into how the particulate nature of blood influences nanoparticle delivery. PMID:25321169

  15. Negative effects of powdered latex gloves in clinical dentistry.

    PubMed

    Belvedere, P C; Lambert, D L

    1994-01-01

    With the advent of CDCs "universal precautions" and OSHA's bloodborne pathogen standard, the number of health-care workers wearing latex gloves has increased dramatically in the law few years. Reports of irritation, contact, and allergic reactions to powdered latex gloves in both medicine and dentistry are on the rise as well. However, other problems related to powdered gloves and their effect on clinical dentistry are just beginning to be addressed. One recent study demonstrated that the starch used as a lubricant on latex rubber gloves significantly reduced the shear bond gloves significantly reduced the shear bond strength of etched porcelain to etched enamel with a resin adhesive system by nearly 40%. Question also arise as to the proper handling of dental implants and the effect that powdered gloves may have on their success based on the negative effects of post-surgical foreign body granulomas reported in the medical community. PMID:10155133

  16. Can we learn, teach and practise dentistry anywhere, anytime?

    PubMed

    Khatoon, B; Hill, K B; Walmsley, A D

    2013-10-01

    Dentistry-related applications for mobile phones are becoming a popular way of accessing information for students, practitioners and patients. The aim of this article is to review the use of mobile technology, such as 'apps', within dentistry. Over time, there has been a change from desktop learning (D-learning) to mobile learning (M-learning) and this has only been possible with the aid of electronic media and the growth of the Internet. In spite of the increase in mobile applications, there is a need for any information to have a strong underlying evidence base. Several good examples of dental applications which take full advantage of this electronic medium are available. However, developers of mobile applications should provide good quality, peer-reviewed evidence to validate their material. PMID:24113956

  17. Current overview on dental stem cells applications in regenerative dentistry.

    PubMed

    Bansal, Ramta; Jain, Aditya

    2015-01-01

    Teeth are the most natural, noninvasive source of stem cells. Dental stem cells, which are easy, convenient, and affordable to collect, hold promise for a range of very potential therapeutic applications. We have reviewed the ever-growing literature on dental stem cells archived in Medline using the following key words: Regenerative dentistry, dental stem cells, dental stem cells banking, and stem cells from human exfoliated deciduous teeth. Relevant articles covering topics related to dental stem cells were shortlisted and the facts are compiled. The objective of this review article is to discuss the history of stem cells, different stem cells relevant for dentistry, their isolation approaches, collection, and preservation of dental stem cells along with the current status of dental and medical applications. PMID:25810631

  18. Can Dentistry Have Two Contracts with the Public?

    PubMed

    Nash, David A

    2015-01-01

    The social contract is an implicit agreement between parts of society and society as a whole. Since the Middle Ages, the learned professions, recently including dentistry, have had a covenantal relationship with the public based on trust, exchanging monopoly privileges for benefiting the public good. Unlike commercial trade in commodities, professional relationships are grounded in ensuring an adequate level of oral health to all. A second contract is emerging where dentists relate to society as business operators, exchanging commodity services for a price. Recent actions by the Federal Trade Commission and the U.S. Supreme Court make it unlikely that dentistry will be able to enjoy only selected aspects of each contract while avoiding obligations that it finds unfavorable. PMID:26697648

  19. Azadirachta indica: A herbal panacea in dentistry – An update

    PubMed Central

    Lakshmi, T.; Krishnan, Vidya; Rajendran, R; Madhusudhanan, N.

    2015-01-01

    Azadirachta indica commonly known as Neem, is an evergreen tree. Since time immemorial it has been used by Indian people for treatment of various diseases due to its medicinal properties. It possesses anti-bacterial, anti-cariogenic, anti-helminthic, anti-diabetic, anti-oxidant, astringent, anti-viral, cytotoxic, and anti-inflammatory activity. Nimbidin, Azadirachtin and nimbinin are active compounds present in Neem which are responsible for antibacterial activity. Neem bark is used as an active ingredient in a number of toothpastes and toothpowders. Neem bark has anti-bacterial properties, it is quite useful in dentistry for curing gingival problems and maintaining oral health in a natural way. Neem twigs are used as oral deodorant, toothache reliever and for cleaning of teeth. The objective of this article is to focus on the various aspects of Azadirachta indica in dentistry in order to provide a tool for future research. PMID:26009692

  20. Today Prospects for Tissue Engineering Therapeutic Approach in Dentistry

    PubMed Central

    Bossù, Maurizio; Pacifici, Andrea; Carbone, Daniele; Tenore, Gianluca; Ierardo, Gaetano; Pacifici, Luciano; Polimeni, Antonella

    2014-01-01

    In dental practice there is an increasing need for predictable therapeutic protocols able to regenerate tissues that, due to inflammatory or traumatic events, may suffer from loss of their function. One of the topics arising major interest in the research applied to regenerative medicine is represented by tissue engineering and, in particular, by stem cells. The study of stem cells in dentistry over the years has shown an exponential increase in literature. Adult mesenchymal stem cells have recently been isolated and characterized from tooth-related tissues and they might represent, in the near future, a new gold standard in the regeneration of all oral tissues. The aim of our review is to provide an overview on the topic reporting the current knowledge for each class of dental stem cells and to identify their potential clinical applications as therapeutic tool in various branches of dentistry. PMID:25379516

  1. Non-destructive measurement of demineralization and remineralization in the occlusal pits and fissures of extracted 3rd molars with PS-OCT

    NASA Astrophysics Data System (ADS)

    Lee, Chulsung; Hsu, Dennis J.; Le, Michael H.; Darling, Cynthia L.; Fried, Daniel

    2009-02-01

    Previous studies have demonstrated that Polarization Sensitive Optical Coherence Tomography (PS-OCT) can be used to image the remineralization of early artificial caries lesion on smooth enamel surfaces of human and bovine teeth. However, most new dental decay is found in the pits and fissures of the occlusal surfaces of posterior dentition and it is in these high risk areas where the performance of new caries imaging devices need to be investigated. The purpose of this study was to demonstrate that PS-OCT can be used to measure the subsequent remineralization of artificial lesions produced in the pits and fissures of extracted 3rd molars. A PS-OCT system operating at 1310-nm was used to acquire polarization resolved images of occlusal surfaces exposed to a demineralizing solution at pH-4.5 followed by a fluoride containing remineralizing solution at pH-7.0 containing 2-ppm fluoride. The integrated reflectivity was calculated to a depth of 200-µm in the entire lesion area using an automated image processing algorithm. Although a well-defined surface zone was clearly resolved in only a few of the samples that underwent remineralization, the PS-OCT measurements indicated a significant (p<0.05) reduction in the integrated reflectivity between the severity of the lesions that were exposed to the remineralization solution and those that were not. The lesion depth and mineral loss were also measured with polarized light microscopy and transverse microradiography after sectioning the teeth. These results show that PS-OCT can be used to non-destructively monitor the remineralization potential of anti-caries agents in the important pits and fissures of the occlusal surface.

  2. A novel amperometric alcohol biosensor developed in a 3rd generation bioelectrode platform using peroxidase coupled ferrocene activated alcohol oxidase as biorecognition system.

    PubMed

    Chinnadayyala, Somasekhar R; Kakoti, Ankana; Santhosh, Mallesh; Goswami, Pranab

    2014-05-15

    Alcohol oxidase (AOx) with a two-fold increase in efficiency (Kcat/Km) was achieved by physical entrapment of the activator ferrocene in the protein matrix through a simple microwave based partial unfolding technique and was used to develop a 3rd generation biosensor for improved detection of alcohol in liquid samples. The ferrocene molecules were stably entrapped in the AOx protein matrix in a molar ratio of ~3:1 through electrostatic interaction with the Trp residues involved in the functional activity of the enzyme as demonstrated by advanced analytical techniques. The sensor was fabricated by immobilizing ferrocene entrapped alcohol oxidase (FcAOx) and sol-gel chitosan film coated horseradish peroxidase (HRP) on a multi-walled carbon nanotube (MWCNT) modified glassy carbon electrode through layer-by-layer technique. The bioelectrode reactions involved the formation of H2O2 by FcAOx biocatalysis of substrate alcohol followed by HRP-catalyzed reduction of the liberated H2O2 through MWCNT supported direct electron transfer mechanism. The amperometric biosensor exhibited a linear response to alcohol in the range of 5.0 × 10(-6) to 30 × 10(-4)mol L(-1) with a detection limit of 2.3 × 10(-6) mol L(-1), and a sensitivity of 150 µA mM(-1) cm(-2). The biosensor response was steady for 28 successive measurements completed in a period of 5h and retained ~90% of the original response even after four weeks when stored at 4 °C. The biosensor was successfully applied for the determination of alcohol in commercial samples and its performance was validated by comparing with the data obtained by GC analyses of the samples. PMID:24368229

  3. Medical school curriculum characteristics associated with intentions and frequency of tobacco dependence treatment among 3rd year U.S. medical students

    PubMed Central

    Hayes, Rashelle B.; Geller, Alan C.; Crawford, Sybil L.; Jolicoeur, Denise; Churchill, Linda C.; Okuyemi, Kola; David, Sean P.; Adams, Michael; Waugh, Jonathan; Allen, Sharon S.; Leone, Frank T.; Fauver, Randy; Leung, Katherine; Liu, Qin; Ockene, Judith K.

    2015-01-01

    Objective Physicians play a critical role in addressing tobacco dependence, yet report limited training. Tobacco dependence treatment curricula for medical students could improve performance in this area. This study identified student and medical school tobacco treatment curricula characteristics associated with intentions and use of the 5As for tobacco treatment among 3rd year U.S. medical students. Methods Third year medical students (N=1065, 49.3% male) from 10 U.S. medical schools completed a survey in 2009-2010 assessing student characteristics, including demographics, tobacco treatment knowledge, and self-efficacy. Tobacco curricula characteristics assessed included amount and type of classroom instruction, frequency of tobacco treatment observation, instruction, and perception of preceptors as role models. Results Greater tobacco treatment knowledge, self-efficacy, and curriculum-specific variables were associated with 5A intentions, while younger age, tobacco treatment self-efficacy, intentions, and each curriculum-specific variable was associated with greater 5A behaviors. When controlling for important student variables, greater frequency of receiving 5A instruction (OR = 1.07; 95%CI 1.01-1.12) and perception of preceptors as excellent role models in tobacco treatment (OR = 1.35; 95%CI 1.04-1.75) were significant curriculum predictors of 5A intentions. Greater 5A instruction (B = .06 (.03); p< .05) and observation of tobacco treatment (B= .35 (.02); p< .001) were significant curriculum predictors of greater 5A behaviors. Conclusions Greater exposure to tobacco treatment teaching during medical school is associated with both greater intentions to use and practice tobacco 5As. Clerkship preceptors, or those physicians who provide training to medical students, may be particularly influential when they personally model and instruct students in tobacco dependence treatment. PMID:25572623

  4. Stellar Occultations by Large TNOs on 2012: The February 3rd by (208996) 2003 AZ84, and the February 17th by (50000) Quaoar

    NASA Astrophysics Data System (ADS)

    Braga Ribas, Felipe; Sicardy, B.; Ortiz, J. L.; Duffard, R.; Camargo, J. I. B.; Lecacheux, J.; Colas, F.; Vachier, F.; Tanga, P.; Sposetti, S.; Brosch, N.; Kaspi, S.; Manulis, I.; Baug, T.; Chandrasekhar, T.; Ganesh, S.; Jain, J.; Mohan, V.; Sharma, A.; Garcia-Lozano, R.; Klotz, A.; Frappa, E.; Jehin, E.; Assafin, M.; Vieira Martins, R.; Behrend, R.; Roques, F.; Widemann, T.; Morales, N.; Thirouin, A.; Mahasena, P.; Benkhaldoun, Z.; Daassou, A.; Rinner, C.; Ofek, E. O.

    2012-10-01

    On February 2012, two stellar occultation's by large Trans-neptunian Objects (TNO's) were observed by our group. On the 3rd, an event by (208996) 2003 AZ84 was recorded from Mont Abu Observatory and IUCAA Girawali Observatory in India and from Weizmann Observatory in Israel. On the 17th, a stellar occultation by (50000) Quaoar was observed from south France and Switzerland. Both occultations are the second observed by our group for each object, and will be used to improve the results obtained on the previous events. The occultation by 2003 AZ84 is the first multi-chord event recorded for this object. From the single chord event on January 8th 2011, Braga-Ribas et al. 2011 obtained a lower limit of 573 +/- 21 km. From the 2012 occultation the longest chord has a size of 662 +/- 50 km. The other chords will permit to determine the size and shape of the TNO, and derive other physical parameters, such as the geometric albedo. The Quaoar occultation was observed from south of France (Observatoire de la Côte d'Azur, TAROT telescope and Valensole) and from Gnosca, Switzerland. Unfortunately, all three sites in France are almost at the same Quaoar's latitude, so in practice, we have two chords that can be used to fit Quaoar's limb. The resulting fit will be compared with the results obtained by Braga-Ribas et al. 2011. Braga-Ribas F., Sicardy B., et al. 2011, EPSC-DPS2011, 1060.Ribas F., Sicardy B., et al. 2011, EPSC-DPS2011, 1060.

  5. Hepatitis B: Knowledge, Vaccine Situation and Seroconversion of Dentistry Students of a Public University

    PubMed Central

    Sacchetto, Marina Sena Lopes da Silva; Barros, Simone Souza Lobão Veras; Araripe, Thaís de Alencar; Silva, Aryvelto Miranda; Faustino, Symonara Karina Medeiros; da Silva, José Mário Nunes

    2013-01-01

    Background Viral hepatitis B (VHB) is an occupational risk for dentists. It is necessary that dental students start clinical practice immunized with the vaccine, response monitored and informed about the means of transmission of the disease. Rarely, there are studies, which evaluate concomitantly knowledge of these academics and their vaccine situation. Objectives To evaluate the knowledge about Hepatitis B, the vaccine situation and the immunization status of dental students and to investigate the probable correlation between the status of immunization, vaccination membership and adherence to the test of seroconversion and associated factors. Patients and Methods 189 students from the dentistry course at the Federal University of Piaui (UFPI) who attended from the 3rd to 9th period were invited to participate in the research. Their knowledge about HBV, attitude regarding protection and their vaccine situation were assessed through a self-administered form. Antibodies against surface antigens of Hepatitis B virus (Anti-HBs) and against the antigens of the virus nucleous of Hepatitis B (Anti-HBc total) were measured qualitatively using the enzyme-linked immunosorbent assay (ELISA). Results Of the 179 students surveyed, 58.1% knew about the degree of virulence of the Hepatitis B virus (HBV). As to the means of transmission, 98.3% considered blood transmission, 82.6% plates and cutlery, 15.6% cough and 12.3% vertical transmission. Most students (87.4%) knew that they should take 3 doses of the vaccine and 62.2% completed the immunization schedule. A minority of students (48.6%) knew the about the Anti-HBs test and 5.6% took the test. Among the students who reported having taken three doses of the vaccine, 12.5% were not seroconverted. There was no significant correlation between the variables. Conclusions Dental academics were unsure about the means of infection and prevention against HBV. Many of them had not completed the immunization scheme and did not have the test of seroconversion. The serological analysis revealed unprotection, even after students completed the vaccination schedule. PMID:24348639

  6. Applications of terahertz spectral imaging-diagnostics in dentistry

    NASA Astrophysics Data System (ADS)

    Zinov'ev, N. N.; Nikoghosyan, A. S.; Chamberlain, J. M.

    2006-03-01

    We present a review on terahertz diagnostics in dentistry. Time domain and spectral domain imaging studies are compared. Imaging built on mapping time-domain dependencies delivers the information on mechanisms of light transport in tissue: ballistic, quasi-ballistic and diffusive photon transfer. Imaging utilizing transform in frequency-domain provides a wealth of data on specific characterization of object: spectral and chemical content, tissue structure and composition and various kind of tissue abnormalities.

  7. Acupuncture: An Alternative Therapy in Dentistry and Its Possible Applications

    PubMed Central

    Kiran, Ravi A.; Yalamanchal, Samatha; Kumar, Vijay A.; Goli, Suresh; Vashist, Neha

    2014-01-01

    Abstract Background: Traditional Chinese acupuncture has a history of more than 2500 years and is one of the best-known complementary and alternative therapies. Acupuncture stimulates the nervous system and alters the processing and perception of pain signals and also releases natural painkillers, such as endorphins and serotonin in the nervous system. Acupuncture's successful use for various dental conditions has been proven. Thus, it is important for the dental clinicians to be familiar with the applications of acupuncture for dental disorders. Objective: One aim of this article is to review related articles in the literature that have focused on acupuncture and its applications in dentistry. Another aim is to provide a quick sketch of acupuncture use in dentistry for dental clinicians. Materials and Methods: A detailed search was performed to identify systematic reviews and research articles, using PUBMED and the Cochrane Database of Systematic Reviews. Language was restricted to English. Key search terms were acupuncture in dentistry, myofacial pain, temporomandibular disorders, xerostomia, dental pain and gag reflex. Results: All of the current the authors independently extracted data for analysis and review. Two independent reviewers screened the titles and abstracts of all the articles for eligibility. When the reviewers noted that an abstract or title of an article indicated that the article was potentially useful, full copies were retrieved. Ultimately, 40 articles underwent full-text review. Conclusions: The research to date certainly offers valid applications of acupuncture in dentistry. Meanwhile, practical strategies with the highest success rates are needed to use in further interventions. PMID:25538815

  8. Brushing up on the history of intermetallics in dentistry

    NASA Astrophysics Data System (ADS)

    Waterstrat, Richard M.

    1990-03-01

    Employing a silver-tin-mercury intermetallic to repair cavities may seem a little unusual, but intermetallics are quite common in dentistry, ranging from gold crowns to braces. Although the human mouth can be unfriendly territory for a brittle intermetallic alloy, dental amalgam has been around since 659 A.D., and its technology has been developed to the point where a filling can be expected to last 30 years or more.

  9. The dental enterprise: its transition from xenodontic to biodontic dentistry.

    PubMed

    Rossomando, Edward F

    2006-01-01

    Throughout the twentieth century, dentistry advanced through the science of better inert reparative materials and their related techniques. Although the diffusion of consequent discoveries has been slow, the twenty-first century will be marked by a biologically grounded approach to oral health care. This transformation from a "xenodontic" to a biodontic model will be assisted by the cooperation of the entire dental enterprise and by students who are well prepared in the biological sciences. PMID:17063899

  10. Curriculum emphasis and resident preparation in postgraduate general dentistry programs.

    PubMed

    Lefever, Karen H; Atchison, Kathryn A; Mito, Ronald S; Lin, Sylvia

    2002-06-01

    In 1999 HRSA contracted with the UCLA School of Dentistry to evaluate the impact of federal funding on postgraduate general dentistry programs. Part of that evaluation analyzed curriculum emphasis and preparation of incoming residents in advanced general dentistry programs over a five-year period. Directors of 208 civilian AEGD and GPR programs were surveyed about the curriculum content of their programs, increased or decreased emphasis in thirty subject areas, and resident preparation and quality (GPA and National Board scores). Results indicate that curriculum changes in AEGD and GPR programs over the time period have been responsive to the changing nature of general practice. At least half of all program directors reported that their residents were less than adequately prepared in fourteen curriculum areas. Sub-analyses were conducted for AEGD/GPR programs and HRSA-funded versus nonfunded programs. Multivariate regression identified lower student quality as the most important program variable in predicting a perceived need for resident remediation. Logistic regression showed that programs with higher resident GPA and National Board Part I scores had less difficulty filling resident positions. PMID:12117097

  11. Future impact of nanotechnology on medicine and dentistry

    PubMed Central

    Patil, Mallanagouda; Mehta, Dhoom Singh; Guvva, Sowjanya

    2008-01-01

    The human characteristics of curiosity, wonder, and ingenuity are as old as mankind. People around the world have been harnessing their curiosity into inquiry and the process of scientific methodology. Recent years have witnessed an unprecedented growth in research in the area of nanoscience. There is increasing optimism that nanotechnology applied to medicine and dentistry will bring significant advances in the diagnosis, treatment, and prevention of disease. Growing interest in the future medical applications of nanotechnology is leading to the emergence of a new field called nanomedicine. Nanomedicine needs to overcome the challenges for its application, to improve the understanding of pathophysiologic basis of disease, bring more sophisticated diagnostic opportunities, and yield more effective therapies and preventive properties. When doctors gain access to medical robots, they will be able to quickly cure most known diseases that hobble and kill people today, to rapidly repair most physical injuries our bodies can suffer, and to vastly extend the human health span. Molecular technology is destined to become the core technology underlying all of 21st century medicine and dentistry. In this article, we have made an attempt to have an early glimpse on future impact of nanotechnology in medicine and dentistry. PMID:20142942

  12. Organized dentistry and the pursuit of entry control.

    PubMed

    Fraundorf, K C

    1984-01-01

    Organized dentistry spent nearly a century laboring to obtain control over entry into the profession. The first attempt, the American Society of Dental Surgeons, failed because the issue of using amalgam so split the Society that collective action became impossible. The second attempt, state licensing during 1870-1900, gave preferential treatment (automatic licensing) to dental school graduates and appeared at first to be the solution to the entry problem, given the small number of schools in operation. However, dental school entrepreneurs recognized a profitable opportunity, and the supply of dental schools expanded rapidly. Thus, in the third and final attempt at obtaining entry control, organized dentistry attacked the for-profit schools. The dental practice acts were amended to require all candidates to pass a licensing examination, provided first that they were graduates of a school considered "reputable" by the state board of dental examiners. Moreover, rising costs generated by increased school standards took the profit out of for-profit operation, and by 1930 such schools ceased to exist. However, the competitive nature of the 1930s made altogether clear that entry control was a necessary, but not sufficient, condition for the maximization of dentist profits, and thus organized dentistry began its turn inward, focusing on the competitive behavior of existing dentists. PMID:6366040

  13. Forensic dentistry in human identification: A review of the literature

    PubMed Central

    Ata-Ali, Fadi

    2014-01-01

    An update is provided of the literature on the role of odontology in human identification, based on a PubMed-Medline search of the last 5 years and using the terms: “forensic dentistry” (n = 464 articles), “forensic odontology” (n = 141 articles) and “forensic dentistry identification” (n = 169 articles). Apart from these initial 774 articles, others considered to be important and which were generated by a manual search and cited as references in review articles were also included. Forensic dentistry requires interdisciplinary knowledge, since the data obtained from the oral cavity can contribute to identify an individual or provide information needed in a legal process. Furthermore, the data obtained from the oral cavity can narrow the search range of an individual and play a key role in the victim identification process following mass disasters or catastrophes. This literature search covering the last 5 years describes the novelties referred to buccodental studies in comparative identification, buccodental evaluation in reconstructive identification, human bites as a method for identifying the aggressor, and the role of DNA in dental identification. The oral cavity is a rich and noninvasive source of DNA, and can be used to solve problems of a social, economic or legal nature. Key words:Forensic identification, DNA, forensic dentistry, rugoscopy, cheiloscopy, saliva. PMID:24790717

  14. Metabolic engineering of E.coli for the production of a precursor to artemisinin, an anti-malarial drug [Chapter 25 in Manual of Industrial Microbiology and Biotechnology, 3rd edition

    SciTech Connect

    Petzold, Christopher; Keasling, Jay

    2011-07-18

    This document is Chapter 25 in the Manual of Industrial Microbiology and Biotechnology, 3rd edition. Topics covered include: Incorporation of Amorpha-4,11-Diene Biosynthetic Pathway into E. coli; Amorpha-4,11-Diene Pathway Optimization; "-Omics" Analyses for Increased Amorpha-4,11-Diene Production; Biosynthetic Oxidation of Amorpha-4,11-Diene.

  15. Baseline Hepatitis B Virus DNA Level is a Promising Factor for Predicting the 3rd Month Virological Response to Entecavir Therapy: A Study of Strict Defined Hepatitis B virus Induced Cirrhosis

    PubMed Central

    Xu, Yang; Wu, Xiao-Ning; Shi, Yi-Wen; Wei, Wei; Yang, Ai-Ting; Sun, Ya-Meng; Zhao, Wen-Shan; You, Hong

    2015-01-01

    Background: Cirrhosis is a common complication of chronic hepatitis B. It remains unclear if viral and biochemical parameters at baseline affect virological response to entecavir and therefore warrant investigation. In the present study, we aimed to evaluate the efficacy of entecavir therapy by monitoring virological response at the end of the 3rd month of treatment and try to figure out whether baseline factors could help predict it in a cohort of hepatitis B virus (HBV) compensated cirrhosis patients and to determine the cut-off value of a predicting parameter. Methods: A total of 91 nucleos(t)ide-naïve patients with HBV induced cirrhosis (compensatory stage) were enrolled in a prospective cohort. HBV DNA and alanine aminotransferase (ALT) were tested at baseline and monitored every 3–6 months after starting therapy. Results: Of all 91 patients, the median follow-up time was 12 (9–24) months. Overall, 64 patients (70.3%) achieved virological response in the 3rd month. Univariate analysis showed that the 3rd month virological response can be predicted by baseline HBV DNA levels (P < 0.001, odds ratio [OR]: 2.13, 95% confidence interval [CI]: 1.44–3.15), ALT value (P = 0.023, OR: 1.01, 95% CI: 1.00–1.01) and hepatitis B e antigen (HBeAg) negativity (P = 0.016, OR: 0.30, 95% CI: 0.11–0.80). Multiple regression analysis showed baseline HBV DNA level was the only parameter related to full virological response. Higher baseline HBV DNA strata indicated a higher probability that HBV DNA remains detectable at the 3rd month (P = 0.001). Area under receiver operating characteristic curve for determining the 3rd month virological response by baseline HBV DNA was 77.6% (95% CI: 66.7–85.2%), with a best cut-off value of 5.8 log10. Conclusions: Baseline HBV DNA, HBeAg negativity, and ALT were independent factors contributing to virological response at the 3rd month. Further, multiple regression showed that HBV DNA level was the only parameter predicting full virological response as early as the 3rd month, in this cirrhosis cohort. PMID:26168824

  16. Israeli ED experience during the Gulf War.

    PubMed

    Rotenberg, Z; Noy, S; Gabbay, U

    1994-01-01

    The experience in an emergency department (ED) during the Gulf War in treating casualties referred to the ED soon after each missile attack is reported. Data were gathered within an 8-hour period of each nationwide alert on all patients who presented to the ED with injuries or complaints directly related to the missile attacks of the Tel Aviv area. One hundred three patients presented with symptoms directly related to the missile attacks. Of 103, 70 suffered from acute psychological reaction, 19 from false autoinjection of atropine, and nine from physical injuries from the explosion. Of the remainder, four had mild symptoms of smoke inhalation, and one had intercurrent myocardial infarction. The missile attacks resulted in a relatively small number of serious injuries. Most of the patients who presented to the ED soon after the missile attacks suffered from either anxiety reaction or false atropin injection. PMID:8285957

  17. MicroED data collection and processing

    SciTech Connect

    Hattne, Johan; Reyes, Francis E.; Nannenga, Brent L.; Shi, Dan; Cruz, M. Jason de la; Leslie, Andrew G. W.; Gonen, Tamir

    2015-07-01

    The collection and processing of MicroED data are presented. MicroED, a method at the intersection of X-ray crystallography and electron cryo-microscopy, has rapidly progressed by exploiting advances in both fields and has already been successfully employed to determine the atomic structures of several proteins from sub-micron-sized, three-dimensional crystals. A major limiting factor in X-ray crystallography is the requirement for large and well ordered crystals. By permitting electron diffraction patterns to be collected from much smaller crystals, or even single well ordered domains of large crystals composed of several small mosaic blocks, MicroED has the potential to overcome the limiting size requirement and enable structural studies on difficult-to-crystallize samples. This communication details the steps for sample preparation, data collection and reduction necessary to obtain refined, high-resolution, three-dimensional models by MicroED, and presents some of its unique challenges.

  18. ICOM2012: 3rd International Conference on the Physics of Optical Materials and Devices (Belgrade, Serbia, 2-6 September 2012)

    NASA Astrophysics Data System (ADS)

    Dramićanin, Miroslav D.; Antić, Željka; Viana, Bruno

    2013-11-01

    The 3rd International Conference on the Physics of Optical Materials and Devices (ICOM2012) was held in Belgrade (Serbia) from 2 to 6 September 2012 (figure 1). The conference was organized by the Vinča Institute of Nuclear Sciences, University of Belgrade (Serbia) and the Laboratoire de Chimie de la Matière Condensée de Paris (France), and supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia and Optical Society of America. ICOM2012 was a follow-up to the two previous, successful ICOM conferences held in Herceg Novi in 2006 and 2009. The conference aimed at providing a forum for scientists in optical materials to debate on: • Luminescent materials and nanomaterials • Hybrid optical materials (organic/inorganic) • Characterization techniques of optical materials • Luminescence mechanisms and energy transfers • Theory and modeling of optical processes • Ultrafast-laser processing of materials • Optical sensors • Medical imaging • Advanced optical materials in photovoltaics and biophotonics • Photothermal and photoacoustic spectroscopy and phenomena The conference stressed the value of a fundamental scientific understanding of optical materials. A particular accent was put on wide band-gap materials in crystalline, glass and nanocrystalline forms. The applications mainly involved lasers, scintillators and phosphors. Rare earth and transition metal ions introduced as dopants in various hosts were considered, and their impact on the optical properties were detailed in several presentations. This volume contains selected contributions of speakers and participants of the ICOM2012 conference. The conference provided a unique opportunity for about 200 scientists from 32 countries to discuss recent progress in the field of optical materials. During the three and half days, 21 invited talks and 52 contributed lectures were given, with a special event in memory of our dear colleague Professor Dr Tsoltan Basiev (Russia). In addition, 183 posters were presented and the two Young Scientist Awards were announced at the closing ceremony. Acknowledgments We thank all the authors for their valuable research contribution presented in this volume. We express our acknowledgements to all reviewers with a special thanks to Dr G Watt, then Publisher of the journal, for accepting the publication of these papers in a special issue of Physica Scripta . We wish to express our gratitude to the members of the ICOM scientific advisory committee and organizing committee for their excellent work and commitment for the success of ICOM2012.

  19. 'Mystery shoppers' can uncover ED weaknesses.

    PubMed

    2006-12-01

    One veteran "mystery shopper" has uncovered several common ED practices that can hurt patient satisfaction. You can learn from her observations to improve your ED's customer service: Be sure to let all of your patients know how long they might expect to wait before seeing a doctor. Wash your hands where the patient can see you, so they can be confident you are practicing good hygiene. Clearly explain all forms and discharge instructions to help ensure patient compliance. PMID:17209484

  20. Case study: ED acts quickly after anthrax.

    PubMed

    2002-05-01

    After last year's anthrax attacks, EDs at Capital Health System in Trenton, NJ, had to address decontamination of large numbers of patients. Patients who didn't require decontamination were sent to the hospital's employee health facility so they could bypass the ED. Clinicians, nursing staff, educators, and paramedics were trained in the decontamination process. Direct communication with first responders was established with a portable scanner. PMID:11995230

  1. Non–Emergency Department (ED) Interventions to Reduce ED Utilization: A Systematic Review

    PubMed Central

    Morgan, Sofie Rahman; Chang, Anna Marie; Alqatari, Mahfood; Pines, Jesse M.

    2014-01-01

    Objectives Recent health policy changes have focused efforts on reducing emergency department (ED) visits as a way to reduce costs and improve quality of care. This was a systematic review of interventions based outside the ED aimed at reducing ED use. Methods This study was designed as a systematic review. We reviewed the literature on interventions in five categories: patient education, creation of additional non-ED capacity, managed care, prehospital diversion, and patient financial incentives. Studies written in English, with interventions administered outside of the ED, and a comparison group where ED use was an outcome, were included. Two independent reviewers screened search results using MEDLINE, Cochrane, OAIster, or Scopus. The following data were abstracted from included studies: type of intervention, study design, population, details of intervention, effect on ED use, effect on non-ED health care use, and other health and financial outcomes. Quality of individual articles was assessed using Grading of Recommendations Assessment, Development, and Evaluation (GRADE) guidelines. Results Of 39 included studies, 34 were observational and five were randomized controlled trials. Two of five studies on patient education found reductions in ED use ranging from 21% to 80%. Out of 10 studies of additional non-ED capacity, four showed decreases of 9% to 54%, and one a 21% increase. Both studies on prehospital diversion found reductions of 3% to 7%. Of 12 studies on managed care, 10 had decreases ranging from 1% to 46%. Nine out of 10 studies on patient financial incentives found decreases of 3% to 50%, and one a 34% increase. Nineteen studies reported effect on non-ED use with mixed results. Seventeen studies included data on health outcomes, but 13 of these only included data on hospitalizations rather than morbidity and mortality. Seven studies included data on cost outcomes. According to the GRADE guidelines, all studies had at least some risk of bias, with four moderate quality, one low quality, and 34 very low quality studies. Conclusions Many studies have explored interventions based outside the ED to reduce ED use in various populations, with mixed evidence. Approximately two-thirds identified here showed reductions in ED use. The interventions with the greatest number of studies showing reductions in ED use include patient financial incentives and managed care, while the greatest magnitude of reductions were found in patient education. These findings have implications for insurers and policymakers seeking to reduce ED use. PMID:24127700

  2. Platelet-rich fibrin application in dentistry: a literature review

    PubMed Central

    Borie, Eduardo; Oliví, Daniel García; Orsi, Iara Augusta; Garlet, Katia; Weber, Benjamín; Beltrán, Víctor; Fuentes, Ramón

    2015-01-01

    The development of bioactive surgical additives to regulate the inflammation and increase the speed of healing process is one of the great challenges in clinical research. In this sense, platelet rich fibrin (PRF) appears as a natural and satisfactory alternative with favorable results and low risks. The following review attempts to summarize the relevant literature regarding the technique of using PRF, focusing on its preparation, advantages, and disadvantages of using it in clinical applications. PRF alone or in combination with other biomaterials seems to have several advantages and indications both for medicine and dentistry, due it is a minimally invasive technique with low risks and satisfactory clinical results. PMID:26221349

  3. Denture barcoding in forensic dentistry: A future option

    PubMed Central

    Basavanna, Jayaprakash Mugur; Jain, Abhishek; Misra, Sumit Kumar

    2016-01-01

    Neurodegenerative disorders are commonly seen in elderly individuals. Parkinson's disease (PD) is the most common example with memory loss, lack of logic, reasoning and analytical thinking. In this case report simple method of 2D Bar code technique of denture marking has been explained which will not only useful in patients with memory loss but it is very helpful in identifying the individuals in case of natural calamities like floods, earthquake, tornedo, state of unconsciousness and accidents. Such patients can be traced easily by denture barcoding. This technique is a major breakthrough in the field of forensic dentistry. PMID:27051224

  4. [Radiobiological aspects of diagnostic X-ray use in dentistry].

    PubMed

    Hoogeveen, R C; van den Aardweg, G J M J

    2015-05-01

    Soon after the discovery of X-rays, it became clear that their use can cause detrimental effects. The field of radiobiology deals with these detrimental effects. In this article, the theoretical concepts of radiobiology relevant to diagnostic X-ray use are presented. The effects of radiation on living tissues, the relationship between dose and effect, and a translation of these effects into the dental application are discussed. X-rays cannot be considered to be harmless even when used at the relatively low doses as in dentistry. If applied with justification and optimization, the risk to the patient will, however, be small. PMID:26210221

  5. Quality indicators: the rationale behind their use in NHS dentistry.

    PubMed

    Mills, I; Batchelor, P

    2011-07-01

    This paper explores the concept of quality as applied to healthcare and its subsequent application to dentistry. The assessment of quality arose from the manufacturing industry and is viewed as a cornerstone of current Government thinking. The difficulties in defining and therefore in measuring are examined and, in particular, the tensions between quantifying quality at a population level and at an individual level. The findings of the application of quality measures to primary medical care are reviewed, especially those that are linked to financial reimbursement of care providers and the implications for any future dental agenda discussed. PMID:21738180

  6. Quality assurance in laser-Doppler flowmetry applied to dentistry

    NASA Astrophysics Data System (ADS)

    Kaulich, Theodor W.; Koerber, Erich

    1996-12-01

    Laser-doppler flowmetry (LDF) is a diagnostic method for checking and judging vitality in tissues. In dentistry, with the help of LDF, there can be investigated short-term or long-term changes of the oral microcirculation. Defects in the LDF equipment which go undiscovered lead to changes in the quality of the biosignals and hamper diagnosis. Reliable and reproducible results are only obtained if the LDF equipment concerned there exists a standardized quality assurance program. There has been developed and tested a method for constancy checks in LDF measurements. The investigation shows that before each clinical application of an LDF equipment careful testing is necessary.

  7. CAD/CAM technology and esthetic dentistry: a case report.

    PubMed

    Santos, Gildo Coelho; Boksman, Leendert Len; Santos, Maria Jacinta Moraes Coelho

    2013-01-01

    Advances in dental materials as well as in computer technology have made CADCAM-fabricated restorations not just possible in dentistry but plentiful. When using CADCAM systems, operators can fabricate restorations from several materials, including ceramics, metal alloys, and various composites. This case report describes the replacement of a porcelain-layered zirconia-based (coping) crown on a left lower cuspid that presented with a veneering ceramic chipping on a lithium-disilicate CADCAM-fabricated crown. It demonstrates how all-ceramic systems offer a promising alternative in the restoration of anterior teeth. PMID:24571505

  8. In favour or against euthanasia--dentistry students' opinion.

    PubMed

    Matthews-Brzozowska, M; Filipowski, H; Musielak, M; Matthews-Brzozowska, T

    2003-01-01

    Euthanasia and a doctor-assisted suicide are not only practiced worldwide, but also legalized in some countries. In Poland they are broadly discussed. The purpose of this paper was to define dentistry students attitude towards human right to ask for death and euthanasia. In the research 148 students of both sexes were questioned. Generally students were against euthanasia in the world as well as in Poland, although men were in majority for euthanasia. Believers were against it due to ethically-religious reasons, while non-believers were for euthanasia motivating it by rational reasons. PMID:15148876

  9. Whistle blowing: the ethics of revealing professional incompetence within dentistry.

    PubMed

    Doyal, L; Cannell, H

    1993-02-01

    Traditionally, the dental profession has endorsed the view that one member should not make public--to patients or colleagues--criticisms of the work of another. Recently, the General Medical Council has disagreed, stating that there may well be circumstances when doctors should not protect colleagues from the consequences of their own mistakes. In this paper we endorse this view. We argue that 'whistle blowing' is appropriate in dentistry as well when its aim is to protect patients from the serious harm to which ignoring such errors might lead. PMID:8427740

  10. Compact laser Doppler flowmeter for application in dentistry

    NASA Astrophysics Data System (ADS)

    Fedosov, Ivan V.; Mareew, Gleb O.; Finokhina, Olga A.; Lepilin, Alexander V.; Tuchin, Valery V.

    2005-06-01

    Lightweight handheld laser Doppler instrument is designed for blood flow assessment in soft tissues of oral cavity. Laser light source, fiber optic probe detector and amplifier circuitry are mounted inside the compact hand held probe assembly to minimize noise and to exclude optical fiber motion artifacts. Both the instrument and data processing software are optimized for the using of the standard PC sound interface as the data acquisition device that provides low cost and effective solution for clinical use. The instrument is suitable for quantitative diagnostics of gingivitis and other disorders in dentistry.

  11. A three dimensional view of stereopsis in dentistry.

    PubMed

    Mon-Williams, M A; Mushtaq, F; Wilkie, R M; Khambay, B; Keeling, A; Manogue, M

    2015-11-27

    Stereopsis and its role in dental practice has been a topic of debate in recent editions of this Journal. These discussions are particularly timely as they come at a point when virtual reality simulators are becoming increasingly popular in the education of tomorrow's dentists. The aim of this article is to discuss the lack of robust empirical evidence to ascertain the relationship (if any) between stereopsis and dentistry and to build a case for the need for further research to build a strong evidence base on the topic. PMID:26611301

  12. A practical perspective on remedial ethics: Minnesota Board of Dentistry.

    PubMed

    Mensing, Candace; Shragg, Marshall

    2009-01-01

    The President and Executive Director of the Minnesota Board of Dentistry describe how the Bebeau course in ethics, for dentists referred because of ethical lapses, is used as part of the disciplinary process in the state. It is understood that breaches of ethical standards are a complex phenomenon, often engaged in by practitioners who know that they are doing wrong but nevertheless choose to do so. Typical patterns of transgression that result in referral to Dr. Bebeau's course include inappropriate billing practices, improper relations with staff or patients, questionable advertising, substandard care, "rough behavior," and gaps in infection control. PMID:20415133

  13. Pathways of fear and anxiety in dentistry: A review

    PubMed Central

    Carter, Ava Elizabeth; Carter, Geoff; Boschen, Mark; AlShwaimi, Emad; George, Roy

    2014-01-01

    The aim of this article was to analyze the theories underpinning dental fear, anxiety and phobias. To be included, articles must have been published between the years of 1949 and 2013 concerning fears and phobias within dentistry and/or psychiatry. Of 200 articles originally under review, 140 were included and reviewed by the authors.Five specific pathways relating to dental fear and anxiety were identified; Cognitive Conditioning, Informative, Visual Vicarious, Verbal Threat, and Parental. Eight currently accepted management techniques across all dental disciplines for dental fear and anxiety were identified. Further research is required to identify clinical diagnosis and treatment for fears originating from different pathways. PMID:25405187

  14. Joint conference of iMEC 2015 (2nd International Manufacturing Engineering Conference & APCOMS 2015 (3rd Asia-Pacific Conference on Manufacturing Systems)

    NASA Astrophysics Data System (ADS)

    2016-02-01

    The iMEC 2015 is the second International Manufacturing Engineering Conference organized by the Faculty of Manufacturing, Universiti Malaysia Pahang (UMP), held from 12-14th November 2015 in Kuala Lumpur, Malaysia, with a theme "Materials, Manufacturing and Systems for Tomorrow". For the first time, iMEC is organized together with 3rd Asia- Pacific Conference on Manufacturing System (APCOMS 2015) which owned by Fakulti Teknologi Industri, Institut Teknologi Bandung (ITB), Indonesia. This is an extended collaboration between UMP and ITB to intensify knowledge sharing and experiences between higher learning institutions. This conference (iMEC & APCOMS 2015) is a platform for knowledge exchange and the growth of ideas, particularly in manufacturing engineering. The conference aims to bring researchers, academics, scientists, students, engineers and practitioners from around the world together to present their latest findings, ideas, developments and applications related to manufacturing engineering and other related research areas. With rapid advancements in manufacturing engineering, iMEC is an appropriate medium for the associated community to keep pace with the changes. In 2015, the conference theme is “Materials, Manufacturing and Systems for Tomorrow” which reflects the acceleration of knowledge and technology in global manufacturing. The papers in these proceedings are examples of the work presented at the conference. They represent the tip of the iceberg, as the conference attracted over 200 abstracts from Malaysia, Indonesia, Japan, United Kingdom, Australia, India, Bangladesh, South Africa, Turkey and Morocco and 151 full papers were accepted in these proceedings. The conference was run in four parallel sessions with 160 presenters sharing their latest finding in the areas of manufacturing process, systems, advanced materials and automation. The first keynote presentation was given by Prof. B. S. Murthy (IIT, Madras) on "Nanomaterials with Exceptional Properties Synthesized through Top Down Approach”, which was warmly welcomed by an eager and highly motivated audience. The second keynote speaker was Prof. Ir. Dradjad Irianto (ITB, Indonesia) on “Collaborative Manufacturing for Small-medium Enterprises”. The organizers are very grateful to them for supporting the conference and sharing their latest research results with the conference participants. The conference organizers would like to express our sincere gratitude and thanks to the honorary chairman Prof. Dato, Dr. Daing Nasir Ibrahim and Prof. Dr. Wan Azhar Wan Yusoff and organizing committee members of iMEC2015, Assoc. Prof. Dr. A.K. Prasada Rao (chairman), Dr. Ing. Mohd Azmir Mohd Azhari (co-chairman), and all committee members Assoc. Prof. Dr. Ahmad Razlan Yusoff, Assoc. Prof. Dr. Ismed Iskandar, Dr Noraini Mohd Razali, Dr Muhammed Nafis Osman Zahid, Dr Noor Mazni Ismail, Dr Izwan Ismail, Dr Zamzuri Hamedon, Dr Faiz Mohd Turan, Ms Suraya Sulaiman and secretariat Miss Zuryaty, Mrs Wan Norshihah, Mr. Mohd Khairulnazri and Mr Rafilah and also a million thanks to the steering committee from APCOMS Prof. Dr. Kadarsyah Suryadi, Prof. Dr. Bermawi, P. Iskandar, Prof. Dr. Abdul Hakim Halim, Prof. Dr. Dradjad Irianto, Dr. TMA Ari Samadhi, Ir. I Made Dana Tangkas and APCOMS organizing committee Prof. Dr. Abdul Hakim Halim (chair), Dr. Rachmawati Wangsaputra (co-chair) and other committee members Dr. Iwan Inrawan Wiratmadja, Dr. Anas Ma'ruf, Dr. Sukoyo and Dr. Wisnu Aribowo. The editorial board are indebted to all of the reviewers who were willing to spend their precious time in reviewing the papers. Thanks also to all who contributed direct or indirectly in making this conference a success, especially Mr. Mohd Khairulnazri in helping the editors complete the proceedings. Dr. Zamzuri Hamedon Editor in-chief iMEC & APCOMS 2015 Associate Editors 1. Assoc. Prof. Dr. A.K. Prasada Rao 2. Assoc. Prof. Dr. Ahmad Razlan Yusoff 3. Dr. Ing. Mohd Azmir Mohd Azhari 4. Dr. Muhammed Nafis Osman Zahid 5. Dr. Faiz Mohd Turan

  15. Stages of Geoinformation Evolution Related to the Territories Described in the Bible - from the 3Rd Millennium B.C. to Modern Times

    NASA Astrophysics Data System (ADS)

    Linsenbarth, Adam

    2012-09-01

    The paper presents consecutive stages of the evolution of geoinformation related to the territories of the events described in the Bible. Two geoinformation sources are presented: the Bible and non-Bible sources. In the Bible there is much, often some highly detailed information regarding terrain topography. The oldest non-Bible sources are incorporated in the ancient documents, which were discovered in Egypt and Mesopotamia. Some of them are related to the 3rd millen- nium B.C. The further stages are related to the onomasticons and itineraries written by travellers and pilgrims to the Holy Land. The most famous onomasticons include: onomasticons prepared by bishop Eusebius from Caesarea and those pre- pared by St. Jerome. One of the oldest maps of Palestine's territory is the so-called mosaic map of Madaba dated to 565. In the 15th century several Bible maps were edited. The most rapid evolution occurred in the 16th and 17* centuries, when the world famous cartographers such as Mercator and Ortelius edited several maps of Palestine's territory. Cartographers from several European countries edited more than 6,000 maps presenting the Biblical territories and Biblical events. Modem maps, based on detailed topographical surveys, were edited m the second half of the 19* and 20th centuries. W artykule przedstawiono kolejne etapy rozwoju geoinformacji dotyczącej terenówr biblijnych. Omówiono dwa źródła informacji, a mianowicie geoinformacje biblijne i pozabiblijne. W tekstach biblijnych można znaleźć wiele, często bardzo detalicznych informacji topograficznych. Najstarsze źródła pozabiblijne, to starożytne dokumenty odnalezione na terenach Egiptu i Mezopotamii. Niektóre z nich pochodzą z trzeciego milenium przed Chr. Kolejnym etapem geoinformacji były onomastikony oraz dzienniki podróży pisane przez podróżników i pielgrzymów do Ziemi Świętej. Do najbardziej znanych należy onomastikon sporządzony przez biskupa Euzebiusza z Cezarei oraz onomastikon św. Hieronima. Do jed- nych z najstarszych map Palestyny należy mozaikowa mapa odnaleziona na posadzce kościoła w Madabie pochodząca z roku 565. Szybki rozwój kartografii biblijnej nastąpił w wieku XVI i XVI. kiedy to słynni kartografowie Mercator i Ortelius opracowali wiele map Palestyny. Kartografowie z wielu krajów Europy, w ciągu minionych stuleci, opracowali ponad 6 tysięcy map biblijnych przedstawiających terytoria i wydarzenia biblijne. Nowoczesne mapy. oparte na pomiarach topograficznych, zaczęto wydawać w drugiej połowie XIX wieku oraz w wieku XX.

  16. 75 FR 33329 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-11

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York... of an inventory of human remains in the possession and control of the New York University College of Dentistry, New York, NY. The human remains were removed from Lovelock Cave, Churchill County, NV....

  17. 75 FR 33327 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-11

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York... of an inventory of human remains in the possession and control of the New York University College of Dentistry, New York, NY. The human remains were removed from the Allred Bluff and Salts Bluff...

  18. 75 FR 52021 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York... of an inventory of human remains in the possession of the New York University College of Dentistry, New York, NY. The human remains were removed from Port Clarence, Nome County, AK. This notice...

  19. 75 FR 52021 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York... of an inventory of human remains in the possession of the New York University College of Dentistry, New York, NY. The human remains were removed from an unknown location. This notice is published...

  20. 75 FR 36110 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-24

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York... of an inventory of human remains in the possession and control of the New York University College of Dentistry, New York, NY. The human remains were removed from Broward and Levy Counties, FL, and an...

  1. 75 FR 33329 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-11

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York... completion of an inventory of human remains in the possession and control of the New York University College of Dentistry, New York, NY. The human remains were removed from the cemetery at Kienuka,...

  2. Departments of Social Dentistry--An Update for the 1980s.

    ERIC Educational Resources Information Center

    Waldman, H. Barry; Siegal, Stanley E.

    1980-01-01

    A review of the development and present status of departments of social dentistry is provided, along with a discussion of evolving programs and need for a change in the relationship between departments of social dentistry and the general school teaching programs. (JSR)

  3. Where to Next? The Issues in Dentistry from the Perspective of a Dental Educator.

    ERIC Educational Resources Information Center

    Formicola, Allan J.

    1993-01-01

    This paper identifies two trends seen as shaping the future of dentistry: (1) the position of dental schools within the university structure; and (2) the regulation of schools through accreditation and licensure. Concluding comments address how dentistry can serve the public through greater access to care. (GLR)

  4. Development of Prototype Outcomes-Based Training Modules for Aesthetic Dentistry

    ERIC Educational Resources Information Center

    Andres, Maricar Joy T.; Borabo, Milagros L.

    2015-01-01

    The objective of the study is to know the essential components of Aesthetic Dentistry that will be a basis for prototype Outcomes-based training modules. Using a 5-point Likert scale, the researcher-made questionnaire assessed the different elements of Aesthetic Dentistry which are needed in the designing of the training module, the manner of…

  5. 78 FR 26053 - Advisory Committee on Training in Primary Care Medicine and Dentistry; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-03

    ... Care Medicine and Dentistry; Notice of Meeting In accordance with section 10(a) (2) of the Federal... Committee on Training in Primary Care Medicine and Dentistry (ACTPCMD). Dates and Times: May 20, 2013 (8:30... only and will be on a first come, first served basis. Space is limited. FOR FURTHER INFORMATION...

  6. 75 FR 64318 - Advisory Committee on Training in Primary Care Medicine and Dentistry; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-19

    ... Care Medicine and Dentistry; Notice of Meeting In accordance with section 10(a)(2) of the Federal... Committee on Training in Primary Care, Medicine and Dentistry (ACTPCMD). Date and Time: November 15, 2010, 8... amended by The Patient Protection and Affordable Care Act, Public Law 111-148. At this meeting...

  7. Student and Faculty Views of an Occupation: A Study of Changing Student Perceptions of Dentistry.

    ERIC Educational Resources Information Center

    Johnson, Gilbert E.; And Others

    This paper is the report of a research project that focused on the professional socialization of dental students in the context of interaction with faculty, other students, the structured curriculum, and patients. Four sets of questions regarding the advantages of dentistry, the disadvantages of dentistry, the characteristics of the dental

  8. Transient data acquisition techniques under EDS

    SciTech Connect

    Telford, S.

    1985-06-01

    This paper is the first of a series which describes the Enrichment Diagnostic System (EDS) developed for the MARS project at Lawrence Livermore National Laboratory. Although EDS was developed for use on AVLIS, the functional requirements, overall design, and specific techniques are applicable to any experimental data acquisition system involving large quantities of transient data. In particular this paper will discuss the techniques and equipment used to do the data acquisition. Included are what types of hardware are used and how that hardware (CAMAC, digital oscilloscopes) is interfaced to the HP computers. In this discussion the author will address the problems encountered and the solutions used, as well as the performance of the instrument/computer interfaces. The second topic the author will discuss is how the acquired data is associated to graphics and analysis portions of EDS through efficient real time data bases. This discussion will include how the acquired data is folded into the overall structure of EDS providing the user immediate access to raw and analyzed data. By example you will see how easily a new diagnostic can be added to the EDS structure without modifying the other parts of the system. 8 figs.

  9. A Quantitative Content Analysis of Mercer University MEd, EdS, and Doctoral Theses

    ERIC Educational Resources Information Center

    Randolph, Justus J.; Gaiek, Lura S.; White, Torian A.; Slappey, Lisa A.; Chastain, Andrea; Harris, Rose Prejean

    2010-01-01

    Quantitative content analysis of a body of research not only helps budding researchers understand the culture, language, and expectations of scholarship, it helps identify deficiencies and inform policy and practice. Because of these benefits, an analysis of a census of 980 Mercer University MEd, EdS, and doctoral theses was conducted. Each thesis…

  10. Image Quality of 3rd Generation Spiral Cranial Dual-Source CT in Combination with an Advanced Model Iterative Reconstruction Technique: A Prospective Intra-Individual Comparison Study to Standard Sequential Cranial CT Using Identical Radiation Dose

    PubMed Central

    Wenz, Holger; Maros, Máté E.; Meyer, Mathias; Förster, Alex; Haubenreisser, Holger; Kurth, Stefan; Schoenberg, Stefan O.; Flohr, Thomas; Leidecker, Christianne; Groden, Christoph; Scharf, Johann; Henzler, Thomas

    2015-01-01

    Objectives To prospectively intra-individually compare image quality of a 3rd generation Dual-Source-CT (DSCT) spiral cranial CT (cCT) to a sequential 4-slice Multi-Slice-CT (MSCT) while maintaining identical intra-individual radiation dose levels. Methods 35 patients, who had a non-contrast enhanced sequential cCT examination on a 4-slice MDCT within the past 12 months, underwent a spiral cCT scan on a 3rd generation DSCT. CTDIvol identical to initial 4-slice MDCT was applied. Data was reconstructed using filtered backward projection (FBP) and 3rd-generation iterative reconstruction (IR) algorithm at 5 different IR strength levels. Two neuroradiologists independently evaluated subjective image quality using a 4-point Likert-scale and objective image quality was assessed in white matter and nucleus caudatus with signal-to-noise ratios (SNR) being subsequently calculated. Results Subjective image quality of all spiral cCT datasets was rated significantly higher compared to the 4-slice MDCT sequential acquisitions (p<0.05). Mean SNR was significantly higher in all spiral compared to sequential cCT datasets with mean SNR improvement of 61.65% (p*Bonferroni0.05<0.0024). Subjective image quality improved with increasing IR levels. Conclusion Combination of 3rd-generation DSCT spiral cCT with an advanced model IR technique significantly improves subjective and objective image quality compared to a standard sequential cCT acquisition acquired at identical dose levels. PMID:26288186

  11. Graduate and Undergraduate Geriatric Dentistry Education in a Selected Dental School in Japan

    PubMed Central

    Kitagawa, Noboru; Sato, Yuji; Komabayashi, Takashi

    2010-01-01

    Geriatric dentistry and its instruction are critical in a rapidly aging population. Japan is the world’s fastest-aging society, and thus geriatric dentistry education in Japan can serve as a global model for other countries that will soon encounter the issues that Japan has already confronted. This study aimed to evaluate geriatric dental education with respect to the overall dental education system, undergraduate geriatric dentistry curricula, mandatory internships, and graduate geriatric education of a selected dental school in Japan. Bibliographic data and local information were collected. Descriptive and statistical analyses (Fisher and Chi-square test) were conducted. Japanese dental schools teach geriatric dentistry in 10 geriatric dentistry departments as well as in prosthodontic departments. There was no significant differences found between the number of public and private dental schools with geriatric dentistry departments (p = 0.615). At Showa University School of Dentistry, there are more didactic hours than practical training hours; however, there is no significant didactic/practical hour distribution difference between the overall dental curriculum and fourth-year dental students’ geriatric dental education curriculum (p=0.077). Graduate geriatric education is unique because it is a four-year Ph.D. course of study; there is neither a Master’s degree program nor a certificate program in Geriatric Dentistry. Overall, both undergraduate and graduate geriatric dentistry curricula are multidisciplinary. This study contributes to a better understanding of geriatric dental education in Japan; the implications of this study include developing a clinical/didactic curriculum, designing new national/international dental public health policies, and calibrating the competency of dentists in geriatric dentistry. PMID:21985207

  12. Biomechanics studies in dentistry: bioengineering applied in oral implantology.

    PubMed

    Assuno, Wirley Gonalves; Baro, Valentim Adelino Ricardo; Tabata, Lucas Fernando; Gomes, Erica Alves; Delben, Juliana Aparecida; dos Santos, Paulo Henrique

    2009-07-01

    The application of engineering knowledge in dentistry has helped the understanding of biomechanics aspects related to osseointegrated implants. Several techniques have been used to evaluate the biomechanical load on implants comprising the use of photoelastic stress analysis, finite element stress analysis, and strain-gauge analysis. Therefore, the purpose of this study was to describe engineering methods used in dentistry to evaluate the biomechanical behavior of osseointegrated implants. Photoelasticity provides good qualitative information on the overall location and concentration of stresses but produces limited quantitative information. The method serves as an important tool for determining the critical stress points in a material and is often used for determining stress concentration factors in irregular geometries. The application of strain-gauge method on dental implants is based on the use of electrical resistance strain gauges and its associated equipment and provides both in vitro and vivo measurements strains under static and dynamic loads. However, strain-gauge method provides only the data regarding strain at the gauge. Finite element analysis can simulate stress using a computer-created model to calculate stress, strain, and displacement. Such analysis has the advantage of allowing several conditions to be changed easily and allows measurement of stress distribution around implants at optional points that are difficult to examine clinically. All the 3 methodologies can be useful to evaluate biomechanical implant behavior close to the clinical condition but the researcher should have enough knowledge in model fabrication (experimental delineation) and results analysis. PMID:19568186

  13. Current perspectives: calcium phosphate nanocoatings and nanocomposite coatings in dentistry.

    PubMed

    Choi, A H; Ben-Nissan, B; Matinlinna, J P; Conway, R C

    2013-10-01

    The purpose of coatings on implants is to achieve some or all of the improvements in biocompatibility, bioactivity, and increased protection from the release of harmful or unnecessary metal ions. During the last decade, there has been substantially increased interest in nanomaterials in biomedical science and dentistry. Nanocomposites can be described as a combination of two or more nanomaterials. By this approach, it is possible to manipulate mechanical properties, such as strength and modulus of the composites, to become closer to those of natural bone. This is feasible with the help of secondary substitution phases. Currently, the most common composite materials used for clinical applications are those selected from a handful of available and well-characterized biocompatible ceramics and natural and synthetic polymers. This approach is currently being explored in the development of a new generation of nanocomposite coatings with a wider range of oral and dental applications to promote osseointegration. The aim of this review is to give a brief introduction into the new advances in calcium phosphate nanocoatings and their composites, with a range of materials such as bioglass, carbon nanotubes, silica, ceramic oxide, and other nanoparticles being investigated or used in dentistry. PMID:23857642

  14. Laser sources in dentistry and radiation safety regulations

    NASA Astrophysics Data System (ADS)

    De Luca, D.; Gaeta, G. M.; Lepore, M.

    2007-02-01

    Nowadays laser sources are largely adopted in dentistry due to their unique properties making them good candidates to substitute traditional scalpel and conventional diamond bur in the surgery of the soft and hard oral tissue, respectively. The large use of laser sources outside the research laboratories without the need of highly specialized personnel can ask for a widespread knowledge of safety issues related to this kind of equipment. The main hazard of accidental exposures regards eyes injury but increasing the power of the laser beam also skin can be involved. Safety legislations in Europe and U.S.A. take into account non ionizing radiations and laser radiation for the hazards for the health deriving from physical agents. Laser safety standards introduce 3 useful parameters for hazard characterization: "Accessible Emission Limit" (AEL), "Maximum Permissible Exposure" (MPE) and "Nominal Ocular Hazard Distance" (NOHD). We measured the MPE and NOHD for Er:YAG and other laser sources currently adopted in dentistry and we compared our results with data elaborated from standards in order to single out safe and comfortable working conditions. In fact an experimental assessment of the hazard parameters and the comparison with those of reference from safety standards turns out to be useful in order to estimate the residual hazard that can be still present after applying all the engineering protection and administrative rules.

  15. Ceramic adhesive restorations and biomimetic dentistry: tissue preservation and adhesion.

    PubMed

    Tirlet, Gil; Crescenzo, Hlne; Crescenzo, Dider; Bazos, Panaghiotis

    2014-01-01

    Thanks to sophisticated adhesive techniques in contemporary dentistry, and the development of composite and ceramic materials, it is possible to reproduce a biomimetic match between substitution materials and natural teeth substrates. Biomimetics or bio-emulation allows for the association of two fundamental parameters at the heart of current therapeutic treatments: tissue preservation and adhesion. This contemporary concept makes the retention of the integrity of the maximum amount of dental tissue possible, while offering exceptional clinical longevity, and maximum esthetic results. It permits the conservation of the biological, esthetic, biomechanical and functional properties of enamel and dentin. Today, it is clearly possible to develop preparations allowing for the conservation of the enamel and dentin in order to bond partial restorations in the anterior and posterior sectors therefore limiting, as Professor Urs Belser from Geneva indicates, "the replacement of previous deficient crowns and devitalized teeth whose conservation are justified but whose residual structural state are insufficient for reliable bonding."1 This article not only addresses ceramic adhesive restoration in the anterior area, the ambassadors of biomimetic dentistry, but also highlights the possibility of occasionally integrating one or two restorations at the heart of the smile as a complement to extensive rehabilitations that require more invasive treatment. PMID:25126616

  16. Er:YAG laser dentistry in special needs patients

    PubMed Central

    Fornaini, Carlo; Clini, Fabio; Fontana, Matteo; Cella, Luigi; Oppici, Aldo

    2015-01-01

    Objective: Between a quarter and a third of adults with intellectual disability is estimated to have dental anxiety. Unpleasant stimuli, such as the injection of local anaesthesia or the noise and vibration of rotary instruments, may provoke anxiety and subsequent low compliance until the opposition to the treatment. The use of Er:YAG laser in conservative dentistry had a great development in these last years thank to new devices and also to their advantages when compared to the conventional instruments. The aim of this clinical study was to show the advantages of the Er:YAG laser in the conservative treatment of Special Care patients. Methods: Four cases are here described to show the Er:YAG laser use in our Unit on special needs patients. Results and conclusions: Based on the experience gained on conservative laser-assisted treatments performed in a time of 5 years at our Dentistry, Special Needs and Maxillo-Facial Surgery Unit we may affirm that Er:YAG laser may be considered as a good way to improve the cooperation, to reduce anxiety related to rotating instruments and to reach better results with equal or shorter operating times. PMID:26557733

  17. MicroED data collection and processing

    PubMed Central

    Hattne, Johan; Reyes, Francis E.; Nannenga, Brent L.; Shi, Dan; de la Cruz, M. Jason; Leslie, Andrew G. W.; Gonen, Tamir

    2015-01-01

    MicroED, a method at the intersection of X-ray crystallography and electron cryo-microscopy, has rapidly progressed by exploiting advances in both fields and has already been successfully employed to determine the atomic structures of several proteins from sub-micron-sized, three-dimensional crystals. A major limiting factor in X-ray crystallography is the requirement for large and well ordered crystals. By permitting electron diffraction patterns to be collected from much smaller crystals, or even single well ordered domains of large crystals composed of several small mosaic blocks, MicroED has the potential to overcome the limiting size requirement and enable structural studies on difficult-to-crystallize samples. This communication details the steps for sample preparation, data collection and reduction necessary to obtain refined, high-resolution, three-dimensional models by MicroED, and presents some of its unique challenges. PMID:26131894

  18. Canadian EdGEO National Workshop Program

    NASA Astrophysics Data System (ADS)

    Clinton, L. A.; Haidl, F. M.; Hymers, L. A.; van der Flier-Keller, E.

    2009-05-01

    Established in the early 1970s, EdGEO supports locally driven geosciences workshops for Canadian teachers. Workshops are organized by geoscientists and teachers, and typically have field, laboratory and classroom components. Grants of up to $3000 per workshop are available from the National EdGEO Program. By providing educational opportunities for today's teachers and, through them, their students, EdGEO seeks to cultivate a heightened awareness of our planet. EdGEO workshops provide teachers with potential fieldtrip sites for their students and the knowledge, enthusiasm and materials to inspire their students to engage in geoscience. Networking opportunities with local experts promote the importance of the geoscience profession. The expected result is an improved capacity on the part of Canadians to understand the Earth and to make informed decisions, especially with regard to the use of mineral and energy resources, the maintenance and remediation of the environment, and response to geological hazards. There exists a critical need to provide teachers with training and resources to tackle their Earth science curricula. In 2008, EdGEO supported fourteen workshops, with an unprecedented 521 teachers attending. These teachers then used our resources to reach an estimated 14,000 students during that single academic year. EdGEO workshops are locally driven and are therefore very diverse. Workshops are strongly tied to the provincial curriculum, focus on a specific geoscience topic, or may be largely field-based to demonstrate and practice how field activities could be incorporated into Earth science teaching. Many strive to include all of these important components. Geoscientists and teachers work collaboratively to develop and deliver EdGEO workshops to ensure that the activities can be effectively used in the classroom. The length of these professional development opportunities range from two-hour sessions to several days, and can generally accommodate up to twenty-five teachers. Workshops have been presented at teachers' conferences, province-wide professional development days, industry events, and independently. Participants consistently rate EdGEO workshops as excellent and outstanding. Responses on the evaluation forms suggest that teachers value the hands-on aspect of the workshops, the strong connection to the curriculum, the classroom resources provided, the field components, the collaborations forged between teachers and geoscientists, and the knowledge gained. Comments also continually make reference to the talented experts who enthusiastically commit to sharing their expertise in geoscience. The ability of EdGEO to advance its vital mission relies on the generous support of scientific associations, corporations, foundations and individuals. With increased funding, EdGEO's future will see the expansion of partnerships with Faculties of Education across Canada. These faculties offer an opportunity to reach out to aspiring teachers before they enter the classroom. Future plans include the compilation of EdGEO lesson plans from coast to coast. These valuable resources would connect to provincial curriculum, provide an opportunity to wedge Earth science into other science subjects, and serve as the basis for developing a series of standardized workshops to be implemented across the nation.

  19. Evidence-based dentistry--overcoming the challenges for the UK's dental practitioners.

    PubMed

    Fox, C; Kay, E J; Anderson, R

    2014-08-01

    This paper describes the historical origins and purpose of 'evidence-based practice' and describes the barriers to the growth of evidence-based practice within dentistry. It describes a new research agenda-setting process for dentistry, which includes identifying and prioritising the topics of most relevance to the work of primary dental care practitioners. By undertaking the work described in this paper we were striving to make research more relevant to the day to day decisions made by dentists in practice by introducing a new process, the intention being to promote and promulgate the practice of evidence-based dentistry. PMID:25146812

  20. The current state of adhesive dentistry: a guide for clinical practice.

    PubMed

    Mante, Francis K; Ozer, Fusun; Walter, Ricardo; Atlas, Alan M; Saleh, Najeed; Dietschi, Didier; Blatz, Markus B

    2013-01-01

    Adhesive dentistry is key to minimally invasive, esthetic, and tooth-preserving dental restorations. These are typically realized by bonding various restorative materials, such as composite resins, ceramics, or even metal alloys, to tooth structures or other materials with composite resin luting agents. For optimal bond strengths and long-lasting clinical success, however, these material and tooth substrates require their respective pretreatment steps, based on their natures and compositions. Today, dental adhesion is used in almost all dental specialties. This article summarizes key aspects and guidelines for clinical success with adhesive dentistry and summarizes information presented at the 5th International Congress on Adhesive Dentistry. PMID:24571402

  1. Victorian era esthetic and restorative dentistry: an advertising trade card gallery.

    PubMed

    Croll, Theodore P; Swanson, Ben Z

    2006-01-01

    A chief means of print advertising in the Victorian era was the "trade card." Innumerable products, companies, and services were highlighted on colorful chromolithographic trade cards, and these became desirable collectible objects which were pasted into scrapbooks and enjoyed by many families. Dentistry- and oral health-related subjects were often depicted on Victorian trade cards, and esthetic and restorative dentistry themes were featured. This review describes the history of advertising trade cards and offers a photographic gallery of dentistry-related cards of the era. PMID:16987318

  2. Dentistry's public-private interface: a federal perspective.

    PubMed

    Mecklenburg, R E

    1988-01-01

    Each dental public health worker is confronted with a wide variety of organizations with which a professional relation can be developed. Decisions about which relations should receive priority, and the kind of relations that may be expected, are easier to define if each possible organizational interface is placed in one of three categories: (1) professional associations; (2) the employing bureaucracy and its sister agencies; and (3) the organizations performing the same dental public health functions as the worker, but within different geographic parameters. A three-dimensional model is developed, using as an example the organizational interfaces of the chief dental officer, US Public Health Service; with national level associations, the federal government; and with dental public health workers at the international and state levels of government. Current issues of importance to the American Association of Public Health Dentistry are identified according to the principal relations needed with other national associations, the federal government, and international and state governments. PMID:3184032

  3. A case study of lasers in cosmetic dentistry.

    PubMed

    Passes, H; Furman, M; Rosenfeld, D; Jurim, A

    1995-01-01

    The dental laser offers revolutionary advantages over traditional cosmetic dental treatment for our patients. These advantages include precision, hemostasis, sterility, and minimal postoperative pain and swelling. The laser interacts with tissue to vaporize it in a predictable manner that produces predictable results. It is used in periodontal plastic surgery, gingivectomy, soft-tissue crown lengthening, crown and bridge gingival retraction, composite curing, biopsy, frenectomy, stage II implant recovery, and more. Fixed prosthetic impressions can be taken immediately following gingivoplasty and sutures and postoperative dressings are eliminated. This paper presents a case study in cosmetic dentistry to demonstrate many of these applications and summarizes current opinion regarding them. It also briefly describes what a laser is and how it works. PMID:7550889

  4. Role of deoxyribonucleic acid technology in forensic dentistry

    PubMed Central

    Datta, Pankaj; Datta, Sonia Sood

    2012-01-01

    In the last few years, Deoxyribonucleic Acid (DNA) analysis methods have been applied to forensic cases. Forensic dental record comparison has been used for human identification in cases where destruction of bodily tissues or prolonged exposure to the environment has made other means of identification impractical, that is, after fire exposure or mass disaster. Teeth play an important role in identification and criminology, due to their unique characteristics and relatively high degree of physical and chemical resistance. The use of a DNA profile test in forensic dentistry offers a new perspective in human identification. The DNA is responsible for storing all the genetic material and is unique to each individual. The currently available DNA tests have high reliability and are accepted as legal proofs in courts. This article gives an overview of the evolution of DNA technology in the last few years, highlighting its importance in cases of forensic investigation. PMID:23087582

  5. Environmental issues in dentistry--mercury. FDI Commission.

    PubMed

    Fan, P L; Arenholt-Bindslev, D; Schmalz, G; Halbach, S; Berendsen, H

    1997-04-01

    One of the consequences of placing amalgam restorations is that mercury is required for the trituration process. In turn, this raises the issue of the possible environmental impact of mercury. This report considers ways in which any impact can be modified and reduced by careful attention to mercury usage and hygiene in the dental practice, the use of filters and separators in waste water pipes and the appropriate disposal of waste contaminated with amalgam. The total amount of mercury discharged into the environment varies considerably in different parts of the world due to both natural and human activities. The extent to which dentistry adds to this total also varies according to local circumstances and requirements. Recommendations are given for further development of ways to reduce mercury discharge and for further research into the environmental impact of the metal. PMID:9448795

  6. The University of Saskatchewan's Aboriginal Equity Access Program in dentistry.

    PubMed

    Teplitsky, Paul Elliot; Uswak, Gerald Stephen

    2014-02-01

    Persons of Aboriginal ancestry are underrepresented in the dental profession in North America. In Canada, the University of Saskatchewan College of Dentistry began a proactive program to recruit, retain, and graduate more Aboriginal students in 1996. This program, entitled the Aboriginal Equity Access Program, has seen the inclusion of twenty-two Aboriginal students in the predoctoral program. This article describes the program and reports on the success of the students enrolled via this route. The primary conclusion is that selection of Aboriginal dental students with lower entry scores--who would not have gained entry if the program did not exist--has not impaired their ability to successfully complete the dental undergraduate program and pass the National Dental Examining Board licensure examination. PMID:24489025

  7. Laser in dentistry: An innovative tool in modern dental practice

    PubMed Central

    Verma, Sanjeev Kumar; Maheshwari, Sandhya; Singh, Raj Kumar; Chaudhari, Prabhat Kumar

    2012-01-01

    The term LASER is an acronym for ‘Light Amplification by the Stimulated Emission of Radiation’. As its first application in dentistry by Miaman, in 1960, the laser has seen various hard and soft tissue applications. In the last two decades, there has been an explosion of research studies in laser application. In hard tissue application, the laser is used for caries prevention, bleaching, restorative removal and curing, cavity preparation, dentinal hypersensitivity, growth modulation and for diagnostic purposes, whereas soft tissue application includes wound healing, removal of hyperplastic tissue to uncovering of impacted or partially erupted tooth, photodynamic therapy for malignancies, photostimulation of herpetic lesion. Use of the laser proved to be an effective tool to increase efficiency, specificity, ease, and cost and comfort of the dental treatment. PMID:23833485

  8. Social media and dentistry: some reflections on e-professionalism.

    PubMed

    Neville, P; Waylen, A

    2015-04-24

    The proliferation of digital technology is impacting on the training and development of healthcare professionals. Research on the online behaviour of medical and pharmacy students indicates that social media poses a number of risks to the professional practice of healthcare professionals. General Dental Council guidelines on the use of social media also suggest that it has the potential to expose dental professionals to a variety of breaches of professional conduct. This paper explores the various ways social media can help, as well as hinder, the practice of dental professionalism. However, the lack of primary research on the social media behaviour of dental students and qualified dental practitioners alike acts as a barrier to increasing social media awareness within dentistry. The paper concludes by calling for more research-led discussion on the role social media plays in shaping our understanding of dental professionalism in the twenty-first century. PMID:25908363

  9. Ceramics in dentistry: historical roots and current perspectives.

    PubMed

    Kelly, J R; Nishimura, I; Campbell, S D

    1996-01-01

    This article presents a brief history of dental ceramics and offers perspectives on recent research aimed at the further development of ceramics for clinical use, at their evaluation and selection, and very importantly, their clinical performance. Innovative ceramic materials and ceramics processing strategies that were introduced to restorative dentistry since the early 1980s are discussed. Notable research is highlighted regarding (1) wear of ceramics and opposing enamel, (2) polishability of porcelains, (3) influence of firing history on the thermal expansion of porcelains for metal ceramics, (4) machining and CAD/CAM as fabrication methods for clinical restorations, (5) fit of ceramic restorations, (6) clinical failure mechanisms of all-ceramic prostheses, (7) chemical and thermal strengthening of dental ceramics, (8) intraoral porcelain repair, and (9) criteria for selection of the various ceramics available. It is found that strong scientific and collaborative foundations exist for the continued understanding and improvement of dental ceramic systems. PMID:9005250

  10. Application of Low level Lasers in Dentistry (Endodontic)

    PubMed Central

    Asnaashari, Mohammad; Safavi, Nassimeh

    2013-01-01

    Low level lasers, cold or soft lasers: These lasers do not produce thermal effects on tissues and induce photoreactions in cells through light stimulation which is called photobiostimulation. Power of these lasers is usually under 250mW. The main point differentiating low level lasers and high power ones is the activation of photochemical reactions without heat formation. The most important factor to achieve this light characteristic in lasers is not their power, but their power density for each surfa ceunit (i.e cm2). Density lower than 670mW/cm2, can induce the stimulatory effects of low level lasers without thermal effects. Low level lasers (therapeutic) used today as treatment adjunctive devices in medicine and dentistry. Numerous studies have been performed on the applications of low level lasers in patient pain reduction. Mechanisms of pain reduction with therapeutic lasers and their application are expressed, and the studies realized in this field are presented. PMID:25606308

  11. Highly efficient source for frequency-entangled photon pairs generated in a 3(rd)-order periodically poled MgO-doped stoichiometric LiTaO(3) crystal.

    PubMed

    Kim, Heonoh; Lee, Hee Jung; Lee, Sang Min; Moon, Han Seb

    2015-07-01

    We present a highly efficient source for discrete frequency-entangled photon pairs based on spontaneous parametric down-conversion using 3rd-order type-0 quasi-phase matching in a periodically poled MgO-doped stoichiometric LiTaO(3) crystal pumped by a 355.66-nm laser. Correlated two-photon states were generated with automatic conservation of energy and momentum in two given spatial modes. These states have a wide spectral range, even under small variations in crystal temperature, which consequently results in higher discreteness. Frequency entanglement was confirmed by measuring two-photon quantum interference fringes without any spectral filtering. PMID:26125367

  12. Cytoplasmic Streaming - Skylab Student Experiment ED-63

    NASA Technical Reports Server (NTRS)

    1973-01-01

    This chart describes the Skylab student experiment (ED-63), Cytoplasmic Streaming, proposed by Cheryl A. Peitz of Arapahoe High School, Littleton, Colorado. Experiment ED-63 was to observe the effect of zero-gravity on cytoplasmic streaming in the aquatic plant named Elodea, commonly called water weed or water thyme. The phenomenon of cytoplasmic streaming is not well understood, but it is recognized as the circulation mechanism of the internal materials or cytoplasm of a cell. Cytoplasm is a gelatinous substance that has the ability to change its viscosity and flow, carrying various cell materials with it. The activity can be stimulated by sunlight or heat. In March 1972, NASA and the National Science Teachers Association selected 25 experiment proposals for flight on Skylab. Science advisors from the Marshall Space Flight Center aided and assisted the students in developing the proposals for flight on Skylab.

  13. Recent advances in dental optics - Part I: 3D intraoral scanners for restorative dentistry

    NASA Astrophysics Data System (ADS)

    Logozzo, Silvia; Zanetti, Elisabetta M.; Franceschini, Giordano; Kilpelä, Ari; Mäkynen, Anssi

    2014-03-01

    Intra-oral scanning technology is a very fast-growing field in dentistry since it responds to the need of an accurate three-dimensional mapping of the mouth, as required in a large number of procedures such as restorative dentistry and orthodontics. Nowadays, more than 10 intra-oral scanning devices for restorative dentistry have been developed all over the world even if only some of those devices are currently available on the market. All the existing intraoral scanners try to face with problems and disadvantages of traditional impression fabrication process and are based on different non-contact optical technologies and principles. The aim of this publication is to provide an extensive review of existing intraoral scanners for restorative dentistry evaluating their working principles, features and performances.

  14. American Association of Dental Schools Curricular Guidelines for Practice Management and for Preventive Dentistry.

    ERIC Educational Resources Information Center

    Journal of Dental Education, 1980

    1980-01-01

    Curricular guidelines developed by the American Association of Dental Schools for use by individual educational institutions as curriculum development aids are provided. The guidelines were developed by the Sections on Community and Preventive Dentistry and Practice Administration. (MLW)

  15. Predoctoral Program Models in Dentistry for the Handicapped: The University of Tennessee Program.

    ERIC Educational Resources Information Center

    Wessels, Kenneth E.

    1980-01-01

    A model program in dentistry for the handicapped offered at the University of Tennessee and supported by a Robert Wood Johnson Foundation grant is described. The program includes didactic instruction, observation and seminar, and clinical practice. (JMF)

  16. "That was the beginning": The professionalization and Americanization of dentistry in pre-state Israel.

    PubMed

    Katvan, Eyal

    2010-01-01

    The history of dental practice in Israel dates back to 1953, with the establishment of the Faculty of Dentistry at the Hebrew University. This article will discuss the early roots of American involvement in Israeli dentistry: beginning with the late Ottoman period in Palestine, through the British Mandate, the establishment of the State of Israel in 1948, and the institution of the Faculty of Dentistry at the Hebrew University of Jerusalem. It will introduce the central characters who promoted the professionalization process of dentistry in Israel--a process made possible by the 'Americanization' of the field: importing American knowledge and practice. Moreover, this article will demonstrate that although the majority of dentists and dental practitioners arrived in Palestine from Russia and from Germany, the main professional influence was American. PMID:21329239

  17. Regional Energy Deployment System (ReEDS)

    SciTech Connect

    Short, W.; Sullivan, P.; Mai, T.; Mowers, M.; Uriarte, C.; Blair, N.; Heimiller, D.; Martinez, A.

    2011-12-01

    The Regional Energy Deployment System (ReEDS) is a deterministic optimization model of the deployment of electric power generation technologies and transmission infrastructure throughout the contiguous United States into the future. The model, developed by the National Renewable Energy Laboratory's Strategic Energy Analysis Center, is designed to analyze the critical energy issues in the electric sector, especially with respect to potential energy policies, such as clean energy and renewable energy standards or carbon restrictions. ReEDS provides a detailed treatment of electricity-generating and electrical storage technologies and specifically addresses a variety of issues related to renewable energy technologies, including accessibility and cost of transmission, regional quality of renewable resources, seasonal and diurnal generation profiles, variability of wind and solar power, and the influence of variability on the reliability of the electrical grid. ReEDS addresses these issues through a highly discretized regional structure, explicit statistical treatment of the variability in wind and solar output over time, and consideration of ancillary services' requirements and costs.

  18. Hyperbaric Oxygen Therapy Can It Be the New Era in Dentistry?

    PubMed Central

    Devaraj, Divya; Srisakthi, D.

    2014-01-01

    Hyperbaric oxygen therapy is a rapidly developing treatment modality in various fields of dentistry. It is the administration of 100% oxygen to the patient for a specified time period, to increase the oxygen tension in the tissues and also its dissolution in the blood. This review aims to briefly discuss the history, mode of action, indications, contraindications, complications and the applications of hyperbaric oxygen therapy in dentistry. PMID:24701552

  19. CAD/CAM guided surgery in implant dentistry: a brief review.

    PubMed

    Kattadiyil, Mathew T; Parciak, Ewa; Puri, Shweta; Scherer, Michael D

    2014-01-01

    Advanced imaging and CAD/CAM technologies and their applications in enhancing treatment outcomes in implant dentistry have gained widespread interest. Guided implant surgery utilizing these advanced technologies has significant applications in implant dentistry. This article provides information on some of the perceived advantages and disadvantages for planning guided versus conventional implant surgery as well as basic steps involved in the fabrication of guided surgical templates (GST). PMID:24881444

  20. Perceived competency towards preventive dentistry among dental graduates: the need for curriculum change

    PubMed Central

    Arheiam, Arheiam; Bankia, Ibtesam; Ingafou, Mohamed

    2015-01-01

    Background A previous study has shown that dental practitioners in Benghazi believed that the less prevention-oriented education system is one of the barriers to applying preventive dentistry. Objective To assess attitudes and perceived competence of the dental graduates in Benghazi towards prevention and early management of dental caries. Methods A cross-sectional, questionnaire-based survey was conducted among internship students attending the Department of Community and Preventive Dentistry in Faculty of Dentistry, Benghazi, Libya. The participants were asked to provide demographic information, to respond to statements about their attitudes towards preventive dentistry, and to answer questions regarding their perceived competence in applying preventive dentistry procedures. Results Data from 108 Libyan dental graduates were analysed for this study, of which 64% of them were females and 42.1% of them passed their final year with grade: acceptable. The most acknowledged aspects of preventive dentistry were being useful and essential to the community (95.4 and 90.8%, respectively). The percentage of participants expressing a proficiency in providing oral hygiene instructions was the highest (95.4%). There were differences between study subgroups in their perceived competence of preventive dental practices by gender and academic performance (p≤0.05). Conclusion This study highlighted that the currently implemented undergraduate education programme in Benghazi dental school does not provide dentists with the required attitude and skills to fulfil their role in providing preventive-oriented health services. PMID:25556523

  1. EDS coal liquefaction process development. Phase V. EDS Consolidation Program: flushing and blowdown system design

    SciTech Connect

    1984-01-01

    The flushing and blowdown system of an EDS plant provides the means of removing viscous coal products and slurry streams from plant vessels and lines. In addition, it provides the flushing oil needed during normal operations for purging instruments in slurry service, for flushing slurry pump and slurry agitator seals, and for flushing slurry safety valve inlet lines. It contains a blowdown system for collecting material from washing operations, including the transport of the collected material to slop tankage. The rerun options for depleting the inventory of collected slop are a related aspect of the flushing and blowdown system design although specific equipment for handling slop is not part of the flushing and blowdown system facilities. This report documents the results of a study which evaluates the flushing and blowdown requirements for a commercial-scale EDS plant. The work was conducted as part of the EDS Consolidation Program. The design recommendations represent a consolidation of learnings accrued during previous phases of the EDS Project including results obtained from ECLP operations, from the ECLP Test Program, and from past EDS Study Design preparations. 1 reference, 4 figures, 2 tables.

  2. EDS Coal Liquefaction Process Development. Phase V. Laboratory evaluation of the characteristics of EDS Illinois bottoms

    SciTech Connect

    Lao, T C; Levasseur, A A

    1984-02-01

    This interim report documents work carried out by Combustion Engineering, Inc. under a contract to Exxon Research and Engineering Company to develop a conceptual Hybrid Boiler design fueled by the vacuum distillation residue (vacuum bottoms) derived from Illinois No. 6 coal in the EDS Coal Liquefaction Process. This report was prepared by Combustion Engineering, Inc., and is the first of two reports on the predevelopment phase of the Hybrid Boiler program. This report covers the results of a laboratory investigation to assess the fuel and ash properties of EDS vacuum bottoms. The results of the laboratory testing reported here were used in conjunction with Combustion Engineering's design experience to predict fuel performance and to develop appropriate boiler design parameters. These boiler design parameters were used to prepare the engineering design study reported in EDS Interim Report FE-2893-113, the second of the two reports on the predevelopment phase of the Hybrid Boiler Program. 46 figures, 29 tables.

  3. [Bioethical analysis of the Brazilian Dentistry Code of Ethics].

    PubMed

    Pyrrho, Monique; do Prado, Mauro Machado; Cordón, Jorge; Garrafa, Volnei

    2009-01-01

    The Brazilian Dentistry Code of Ethics (DCE), Resolution CFO-71 from May 2006, is an instrument created to guide dentists' behavior in relation to the ethical aspects of professional practice. The purpose of the study is to analyze the above mentioned code comparing the deontological and bioethical focuses. In order to do so, an interpretative analysis of the code and of twelve selected texts was made. Six of the texts were about bioethics and six on deontology, and the analysis was made through the methodological classification of the context units, textual paragraphs and items from the code in the following categories: the referentials of bioethical principlism--autonomy, beneficence, nonmaleficence and justice -, technical aspects and moral virtues related to the profession. Together the four principles represented 22.9%, 39.8% and 54.2% of the content of the DCE, of the deontological texts and of the bioethical texts respectively. In the DCE, 42% of the items referred to virtues, 40.2% were associated to technical aspects and just 22.9% referred to principles. The virtues related to the professionals and the technical aspects together amounted to 70.1% of the code. Instead of focusing on the patient as the subject of the process of oral health care, the DCE focuses on the professional, and it is predominantly turned to legalistic and corporate aspects. PMID:19851604

  4. Where dentistry stands in light of health care reform.

    PubMed

    Collignon, B H

    1994-01-01

    The hot topic from Capitol Hill in Washington to Capitol Hill in Jefferson City is health care reform. President Clinton started the ball rolling during the campaign in 1992 by including health care reform in his platform. He continued the effort after his election by appointing his wife, Hillary, to chair a task force to present an outline for federal legislation. Since the package was presented to Congress, there has been much discussion, lobbying, and rumoring about the implications of health care reform and what it could mean to all of us as dentists. On the home front, Governor Carnahan has introduced legislation in Missouri to reform the health care system. This effort is known as the Missouri Health Assurance Plan (H.B. 1622). Missouri Dental Association members are vitally concerned about the impact of health care reform on their practice, their taxes, their relationship with their patients and employees, and on their ability to seek out health care services since each member is also a consumer of health care. This article represents answers to some of the questions being asked by MDA members in order that they might be more aware of the activities by the MDA, the ADA, and other levels of organized dentistry relating to health care reform. PMID:9564299

  5. To protect the public: professionalism vs competence in dentistry.

    PubMed

    Jago, J D

    1984-01-01

    This paper uses evidence from reports in the British Dental Journal from 1958 to 1979 of disciplinary charges against dentists in the United Kingdom to question the General Dental Council's (GDC) claim that it is protecting the public in relation to the competence of dental practitioners. In that 20-year period only one charge out of 86 heard by the GDC Disciplinary Committee had to do with a possible lack of professional competence, whereas 47% of the charges were for fraud and other criminal offences, 18% were for drug-related offences, 18% were for sex offences and 16% were for breaches of professional ethics or discipline. The paper argues that the GDC has been much more concerned with developing a professional image and style for dentists than it has been with assuring an adequate level of dental care for patients by dentists once they graduate. Although the data used to support the argument are fom Britain and from dentistry, the argument may be extended to all professional occupations and countries where there is a State-enforced medical monopoly in relation to clients. PMID:6474226

  6. [Dental care, dental diseases and dentistry in antiquity].

    PubMed

    Józsa, László

    2009-01-01

    Numerous written relicts, belletristic works (poems of Martial, Juvenal, Ovid etc.) indicate that oral hygiene and its tools (toothbrush, toothpick, use of tooth pastes and tooth-powder) were used long before our times. Already ancient people started to remove, file, dye and inlay teeth. The teeth were dyed red, green or black in Egypt, red or brown (with henna or betel) in India, white by Romans. The teeth decoration has a long but forgotten history. The most skillful and artistic work was done by the Maya's between 900 BC and 1500 AD. The modification of contours (more than fifty forms) of the incisors were practiced also in Mesoamerica. Dentistry was surely practiced in ancient Egypt, India, China, Greece and Rome, while odontology and especially suitable dental appliances arose only by Etruscan. Dental prosthesis, including bridges and simple retention bands were invented by the Etruscans 2500 years ago. These Etruscan bridges were worn mostly by females, suggesting that cosmetics was the principal dental concern. Some,--if not all--of the Roman and other prostheses have been purely ornamental. Orthodontic appliances are also Etruscan invention. The holes caused by caries were filled with garlic, incense, caraway seed in Egypt, with wood or lead in Rome, and with "silver-paste" (amalgam) in ancient China. The toothache was cured with poppy-tee, or hashish and nightshade plants (Solanaceae) in Egypt, Greece, Roman Empire while with coca (Erythroxylon coca) in South-America. PMID:20481107

  7. Cavitation bubbles induced by Erbium lasers: implications for dentistry

    NASA Astrophysics Data System (ADS)

    Verleng, Marja; Verdaasdonk, Rudolf; van der Veen, Albert; Lemberg, Vladimir; Boutoussov, Dmitri

    2014-02-01

    With new fiber systems available for 3 μm, Erbium lasers become more interesting for precise tissue ablation in a water environment enabling new application in e.g. dentistry. The dynamics of explosive bubble formation was investigated at 2.78 μm (Er,Cr;YSGG) and 2.94 μm (Er:YAG), in relation to energy (10-50 mJ), pulse length (20-150 μs) and fiber tip shape (flat or taper). The dynamics of exploding and imploding vapor bubbles were captured with high speed imaging (10 - 300 μs range). Increasing the pulse length and energy, the vapor bubble became more elongated with an opaque surface for flat tip fibers. Tapered fibers produced spherical vapor bubbles with an optically transparent surface expected to be more forceful for creating mechanical effects in both hard and soft tissues. There was no significant difference between bubbles formed at 2.78 μm (Er,Cr;YSGG) and 2.94 μm (Er:YAG).

  8. Effective dose from cone beam CT examinations in dentistry.

    PubMed

    Roberts, J A; Drage, N A; Davies, J; Thomas, D W

    2009-01-01

    Cone beam CT (CBCT) is becoming an increasingly utilized imaging modality for dental examinations in the UK. Previous studies have presented little information on patient dose for the range of fields of view (FOVs) that can be utilized. The purpose of the study was therefore to calculate the effective dose delivered to the patient during a selection of CBCT examinations performed in dentistry. In particular, the i-CAT CBCT scanner was investigated for several imaging protocols commonly used in clinical practice. A Rando phantom containing thermoluminescent dosemeters was scanned. Using both the 1990 and recently approved 2007 International Commission on Radiological Protection recommended tissue weighting factors, effective doses were calculated. The doses (E(1990), E(2007)) were: full FOV head (92.8 microSv, 206.2 microSv); 13 cm scan of the jaws (39.5 microSv, 133.9 microSv); 6 cm high-resolution mandible (47.2 microSv, 188.5 microSv); 6 cm high-resolution maxilla (18.5 microSv, 93.3 microSv); 6 cm standard mandible (23.9 microSv, 96.2 microSv); and 6 cm standard maxilla (9.7 microSv, 58.9 microSv). The doses from CBCT are low compared with conventional CT but significantly higher than conventional dental radiography techniques. PMID:18852212

  9. Amorphous calcium phosphate and its application in dentistry

    PubMed Central

    2011-01-01

    Amorphous Calcium Phosphate (ACP) is an essential mineral phase formed in mineralized tissues and the first commercial product as artificial hydroxyapatite. ACP is unique among all forms of calcium phosphates in that it lacks long-range, periodic atomic scale order of crystalline calcium phosphates. The X-ray diffraction pattern is broad and diffuse with a maximum at 25 degree 2 theta, and no other different features compared with well-crystallized hydroxyapatite. Under electron microscopy, its morphological form is shown as small spheroidal particles in the scale of tenths nanometer. In aqueous media, ACP is easily transformed into crystalline phases such as octacalcium phosphate and apatite due to the growing of microcrystalline. It has been demonstrated that ACP has better osteoconductivity and biodegradability than tricalcium phosphate and hydroxyapatite in vivo. Moreover, it can increase alkaline phosphatase activities of mesoblasts, enhance cell proliferation and promote cell adhesion. The unique role of ACP during the formation of mineralized tissues makes it a promising candidate material for tissue repair and regeneration. ACP may also be a potential remineralizing agent in dental applications. Recently developed ACP-filled bioactive composites are believed to be effective anti-demineralizing/remineralizing agents for the preservation and repair of tooth structures. This review provides an overview of the development, structure, chemical composition, morphological characterization, phase transformation and biomedical application of ACP in dentistry. PMID:21740535

  10. Dentistry to the rescue of missing children: A review.

    PubMed

    Vij, Nitika; Kochhar, Gulsheen Kaur; Chachra, Sanjay; Kaur, Taranjot

    2016-01-01

    Today's society is becoming increasingly unsafe for children: we frequently hear about new incidents of missing children, which lead to emotional trauma for the loved ones and expose systemic failures of law and order. Parents can take extra precautions to ensure the safety of their children by educating them about ways to protect themselves and keep important records of the child such as updated color photographs, fingerprints, deoxyribonucleic acid (DNA) samples, etc., handy. However, in spite of all efforts, the problem of missing children still remains. Developments in the field of dentistry have empowered dentists with various tools and techniques to play a pivotal role in tracing a missing child. One such tool is Toothprints, a patented arch-shaped thermoplastic dental impression wafer developed by Dr. David Tesini, a paediatric dentist from Massachusetts. Toothprints enables a unique identification of the missing children not only through the bite impression but also through salivary DNA. Besides the use of Toothprints, a dentist can assist investigating agencies in identifying the missing children in multiple ways, including postmortem dental profiling, labeled dental fixtures, DNA extraction from teeth, and serial number engraving on the children's teeth. More importantly, all these tools cause minimal inconvenience to the individual, making a dentist's role in tracking a missing child even more significant. Thus, the simple discipline of maintaining timely dental records with the help of their dentists can save potential hassles for the parents in the future. PMID:27051216

  11. A review on common chemical hemostatic agents in restorative dentistry

    PubMed Central

    Tarighi, Pardis; Khoroushi, Maryam

    2014-01-01

    Control of hemorrhage is one of the challenging situations dentists confront during deep cavity preparation and before impressions or cementation of restorations. For the best bond and least contamination it is necessary to be familiar with the hemostatic agents available on the market and to be able to choose the appropriate one for specific situations. This review tries to introduce the commercially available hemostatic agents, discusses their components and their specific features. The most common chemical agents that are widely used in restorative and prosthodontic dentistry according to their components and mechanism of action as well as their special uses are introduced. PubMed and Google Scholar were searched for studies involving gingival retraction and hemostatic agents from 1970 to 2013. Key search words including: gingival retraction techniques, impression technique, hemostasis and astringent were searched. Based on the information available in the literature, in order to achieve better results with impression taking and using resin bonding techniques, common hemostatic agents might be recommended before or during acid etching; they should be rinsed off properly and it is recommended that they be used with etch-and-rinse adhesive systems. PMID:25225553

  12. Biological Restoration in Pediatric Dentistry: A Brief Insight

    PubMed Central

    MD, Indira; Nandlal, B; Kumar PS, Praveen; Singh Dhull, Rachita

    2014-01-01

    ABSTRACT% Dental caries is the most prevalent disease in humans, especially during early childhood. The restoration of such an extensive carious lesion should be done properly to reestablish their anatomy and hence their masticatory, phonetic, esthetic and space-maintainer functions in the dental arches. The consequences of premature loss of primary teeth are well known, namely the loss of vertical dimension of occlusion, tongue thrusting and mouth breathing habits, which can be the sources of future malocclusion. Satisfactory restoration of these teeth, improving esthetics, along with the management of space and function has always been a challenge for pediatric dentist. An ever increasing demand for esthetics has led to innovation and development of newer treatment modalities for these problems. In an attempt to widen the treatment options as biologically and conservatively as possible, tooth structure is used as a restorative material to rehabilitate severely destroyed tooth crowns. This technique consists of bonding sterile dental fragments, obtained either from the patient or from a tooth bank, to the teeth. Such a technique was termed as ‘biological restoration’. This article aims at reviewing the evolution, techniques and outcome of such biological restorations. How to cite this article: MD Indira, Dhull KS, Nandlal B, Kumar PSP, Dhull RS. Biological Restoration in Pediatric Dentistry: A Brief Insight. Int J Clin Pediatr Dent 2014;7(3):197-201. PMID:25709301

  13. Herbal panacea: The need for today in dentistry.

    PubMed

    Seal, Mukut; Rishi, Rahul; Satish, G; Divya, K T; Talukdar, Pratim; Maniyar, Radhika

    2016-01-01

    Among ancient civilizations, India has been known to be a rich repository of medicinal plants. Herbal extracts have been used in traditional medicine for several thousand years. Some plants contain phytochemicals that have effects on the body. The use of phytotherapy is staging a comeback and an era of herbal renaissance is being revolutionized all over the globe. Herbs are a class of plants that are devoid of the woody tissue characteristic of shrubs or trees and have been known for their aromatic, flavoring, and medicinal values over the past centuries. Since the birth of contemporary practices, many have turned away from herbal therapies in favor of synthetic drugs. But these synthetic medicines can alter microbiota and have several side effects. However, the blind dependence on synthetics is over and people are returning to the naturals with the hope of safety and security. Hence, the search for alternative natural products continue. This review includes a few herbs, which can be used in dentistry as alternatives to allopathic medicines. PMID:27114947

  14. Corrosion behavior of Ti-39Nb alloy for dentistry.

    PubMed

    Fojt, Jaroslav; Joska, Ludek; Malek, Jaroslav; Sefl, Vaclav

    2015-11-01

    To increase an orthopedic implant's lifetime, researchers are now concerned on the development of new titanium alloys with suitable mechanical properties (low elastic modulus-high fatigue strength), corrosion resistance and good workability. Corrosion resistance of the newly developed titanium alloys should be comparable with that of pure titanium. The effect of medical preparations containing fluoride ions represents a specific problem related to the use of titanium based materials in dentistry. The aim of this study was to determine the corrosion behavior of β titanium alloy Ti-39Nb in physiological saline solution and in physiological solution containing fluoride ions. Corrosion behavior was studied using standard electrochemical techniques and X-ray photoelectron spectroscopy. It was found that corrosion properties of the studied alloy were comparable with the properties of titanium grade 2. The passive layer was based on the oxides of titanium and niobium in several oxidation states. Alloying with niobium, which was the important part of the alloy passive layer, resulted in no significant changes of corrosion behavior. In the presence of fluoride ions, the corrosion resistance was higher than the resistance of titanium. PMID:26249624

  15. Practical aspects of DNA-based forensic studies in dentistry

    PubMed Central

    Muruganandhan, J; Sivakumar, G

    2011-01-01

    Forensic dentistry as a science has evolved from simple methods of age estimation and bite-mark analysis, to a new era of genetic and serological investigations. DNA analysis in forensic science requires a sample or source from either an individual (living or dead) or a crime/incident site. The orofacial region is a good source of such material, due to the fact that certain oral tissues are relatively resistant to environmental degradation and destruction by thermal, electrical, and mechanical insult. Dentists may be called upon to provide samples and expert analysis in many such situations. Sources include soft and hard tissues of teeth and jaws, saliva, biopsy material, and mucosal swabs. Tissue samples should be handled with care, and correct protocol in collection and preparation has to be followed. This ensures a high yield of the required DNA. Hard tissues like teeth require specialized procedures to extract the genetic material. Research has shown that there is a wide variation in the quality and quantity of DNA extracted from different individuals from the same site even under similar conditions. This necessitates calibration of the various methods to achieve best results. DNA analysis can provide highly accurate identification if used correctly. Here a description of the various sources in the oral region has been provided from which samples could be forwarded to the forensic laboratory. Most commonly employed techniques of collection and handling for laboratory procedures have been outlined. PMID:22022138

  16. The feminization of dentistry: implications for the profession.

    PubMed

    McKay, Julia C; Quiñonez, Carlos R

    2012-01-01

    Over the last 40 years, the proportion of women in dentistry has been rising steadily, raising questions about the effects of this feminization on the profession. A review of the literature, although limited, highlights potentially important areas related to gender, including impact on work hours, practice models, professional incomes, the dentist–patient relationship, clinical philosophies, specialty practice, academia and leadership. Although cohorts of predominantly female dentists are only beginning to enter the workforce and, thus, it is difficult to predict the long-term effects, some trends are evident: women are less likely than men to own their practice; women may work 4–6 fewer hours a week and see fewer patients; there is a pay differential; female general practitioners and specialists appear more likely to work in urban centres; and women are less prominent in the specialties, academia and leadership roles. Thus, the profession may shift toward less entrepreneurship, more urbanization and, possibly, fewer clinical hours available to the population as a result of feminization. With the ultimate goal of excellence in patient care, this may entail increases in student enrolment, formal incentives for practice relocation to rural communities, more business education and policies to modify advanced education and training for women with children. This knowledge, although still not robust, is relevant for policy, educational institutions and professional governing bodies. PMID:22507278

  17. The feminization of dentistry: implications for the profession.

    PubMed

    McKay, Julia C; Quiñonez, Carlos R

    2012-01-01

    Over the last 40 years, the proportion of women in dentistry has been rising steadily, raising questions about the effects of this feminization on the profession. A review of the literature, although limited, highlights potentially important areas related to gender, including impact on work hours, practice models, professional incomes, the dentist-patient relationship, clinical philosophies, specialty practice, academia and leadership. Although cohorts of predominantly female dentists are only beginning to enter the workforce and, thus, it is difficult to predict the long-term effects, some trends are evident: women are less likely than men to own their practice; women may work 4-6 fewer hours a week and see fewer patients; there is a pay differential; female general practitioners and specialists appear more likely to work in urban centres; and women are less prominent in the specialties, academia and leadership roles. Thus, the profession may shift toward less entrepreneurship, more urbanization and, possibly, fewer clinical hours available to the population as a result of feminization. With the ultimate goal of excellence in patient care, this may entail increases in student enrolment, formal incentives for practice relocation to rural communities, more business education and policies to modify advanced education and training for women with children. This knowledge, although still not robust, is relevant for policy, educational institutions and professional governing bodies. PMID:22322017

  18. Color accuracy of commercial digital cameras for use in dentistry

    PubMed Central

    Wee, Alvin G.; Lindsey, Delwin T.; Kuo, Shanglun; Johnston, William M.

    2006-01-01

    Summary Objectives The use of calibrated, commercial digital cameras for dental applications is promising. The color accuracy of various calibration models were evaluated as applied to three commercial digital cameras for use in dental color matching. Methods CIE LAB values of 264 color patches and 65 shade tabs were measured with a spectroradiometer. Digital images of the samples were taken with the Nikon D100, Canon D60 and Sigma SD9 cameras. Four regression models were formulated from the color patch CIE LAB and the digital image values. Shade tab CIE LAB colors were predicted by applying the digital image values into the calibration models and were compared to the measured CIE LAB values. The Wilcoxon Rank-Sum test determined if the 12 camera/calibration models differed significantly from the color measurement setup. Results Every camera/calibration model (ΔE’s ranging from 1.79 to 5.25) showed a statistically significant difference from the color measurement setup. Significance Commercial SLR digital cameras when combined with the appropriate calibration protocols showed potential for use in the color replication process of clinical dentistry. PMID:16198403

  19. Dentistry to the rescue of missing children: A review

    PubMed Central

    Vij, Nitika; Kochhar, Gulsheen Kaur; Chachra, Sanjay; Kaur, Taranjot

    2016-01-01

    Today's society is becoming increasingly unsafe for children: we frequently hear about new incidents of missing children, which lead to emotional trauma for the loved ones and expose systemic failures of law and order. Parents can take extra precautions to ensure the safety of their children by educating them about ways to protect themselves and keep important records of the child such as updated color photographs, fingerprints, deoxyribonucleic acid (DNA) samples, etc., handy. However, in spite of all efforts, the problem of missing children still remains. Developments in the field of dentistry have empowered dentists with various tools and techniques to play a pivotal role in tracing a missing child. One such tool is Toothprints, a patented arch-shaped thermoplastic dental impression wafer developed by Dr. David Tesini, a paediatric dentist from Massachusetts. Toothprints enables a unique identification of the missing children not only through the bite impression but also through salivary DNA. Besides the use of Toothprints, a dentist can assist investigating agencies in identifying the missing children in multiple ways, including postmortem dental profiling, labeled dental fixtures, DNA extraction from teeth, and serial number engraving on the children's teeth. More importantly, all these tools cause minimal inconvenience to the individual, making a dentist's role in tracking a missing child even more significant. Thus, the simple discipline of maintaining timely dental records with the help of their dentists can save potential hassles for the parents in the future. PMID:27051216

  20. Essentials of standard chinese phonetics for prosthetic dentistry.

    PubMed

    Hu, Xiulian; Lin, Ye; Hunold, Cordula; Nelson, Katja

    2013-08-01

    Speech adaptation after oral rehabilitation is based on a complex interaction of articulatory and myofunctional factors. The knowledge of basic phonetic principles may help clinicians identify phonetic problems associated with prosthodontic treatment. The purpose of this article is to illustrate basic phonetic terminology, standard Chinese (Putonghua) phonetics, and the anatomic structures relevant for dentistry. In cooperation with a Chinese linguistic specialist, Chinese articulators were selected and are described and compared with English phonetics. Established test words and sentences aid the identification of mispronounced articulators and their related dental structures. The pronunciation of most consonants and vowels in standard Chinese is similar to English, but some of them, such as the retropalatals (/zh/ [tʂ], /ch/ [thʂ], /sh/ [ʂ]), have notable differences. Palatal consonants (/j/ [tɕ], /q/ [tɕh], /x/ [ɕ]) are unique to the Chinese phonetic system and are not found in English phonetics. The comprehension of the basic anatomic regions involved in Chinese phonetics may help prosthodontists treat patients whose native language is standard Chinese. PMID:23387807

  1. Critical issues for dentistry: PGD program directors respond.

    PubMed

    Atchison, Kathryn A; Cheffetz, Susan E

    2002-06-01

    Discussion of critical issues facing postgraduate education in general dentistry (PGD) and dental education in general has been intense in the past decade. This study reports on critical issues raised by directors of PGD programs that may help direct future research and action within dental education and the larger profession. The analysis reports responses to an open-ended question sent to all U.S. PGD program directors regarding critical issues facing their training programs. Of 212 surveys, 169 program directors submitted written responses regarding critical issues. Twelve unique themes were identified: lack of postdoctoral applicants (two subthemes were high student debt and students' preference for private practice); student quality; professionalism and attitudes; number of postdoctoral positions; lack of funding; quality of facilities; special patient care; program curriculum; educator issues; mandatory or encouraged PGD year; value of dental program; and dentist shortage. Significant differences between AEGD and GPR directors were observed for two of the twelve areas: high student debt and value of dental program. The study provided insight into the thoughts of a large proportion of the U.S. PGD program directors "in the trenches." Some consideration of allowable expenses may be needed to align federal training support to best address program director needs. PMID:12117095

  2. Herbal panacea: The need for today in dentistry

    PubMed Central

    Seal, Mukut; Rishi, Rahul; Satish, G.; Divya, K. T.; Talukdar, Pratim; Maniyar, Radhika

    2016-01-01

    Among ancient civilizations, India has been known to be a rich repository of medicinal plants. Herbal extracts have been used in traditional medicine for several thousand years. Some plants contain phytochemicals that have effects on the body. The use of phytotherapy is staging a comeback and an era of herbal renaissance is being revolutionized all over the globe. Herbs are a class of plants that are devoid of the woody tissue characteristic of shrubs or trees and have been known for their aromatic, flavoring, and medicinal values over the past centuries. Since the birth of contemporary practices, many have turned away from herbal therapies in favor of synthetic drugs. But these synthetic medicines can alter microbiota and have several side effects. However, the blind dependence on synthetics is over and people are returning to the naturals with the hope of safety and security. Hence, the search for alternative natural products continue. This review includes a few herbs, which can be used in dentistry as alternatives to allopathic medicines. PMID:27114947

  3. Unconventional dentistry in India - an insight into the traditional methods.

    PubMed

    Boloor, Vinita Ashutosh; Hosadurga, Rajesh; Rao, Anupama; Jenifer, Haziel; Pratap, Sruthy

    2014-07-01

    Unconventional medicine (UM) has been known and practised since the recorded history of civilization. Some unconventional practices may be viewed as "the continuity of traditions, religious beliefs, and even quackery that non-specialists practice." These practices have been associated with religious beliefs and the spiritual domain as well as with the physical domain. In ancient Old World civilizations, UM was performed by skilled experts or wise men; in today's Western civilization, practitioners may or may not be licensed, and some are charlatans. Dentistry, like medicine, is a traditional, science-based, highly regulated healthcare profession that serves increasingly sophisticated and demanding clients. Today, traditional dental practice is dealing with an array of challenges to the established professional system; these challenges are generally termed "alternative" (or complementary, unconventional, or integrative). Genuine alternatives are comparable methods of equal value that have met scientific and regulatory criteria for safety and effectiveness. Because "alternative care" has become politicized and is often a misnomer - referring to practices that are not alternative to, complementary to, or integrating with conventional health care - the more accurate term "unconventional" is used. PMID:25161919

  4. Introducing evidence-based dentistry to dental students using histology.

    PubMed

    Lallier, Thomas E

    2014-03-01

    The expansion of evidence-based dentistry (EBD) is essential to the continued growth and development of the dental profession. Expanding EBD requires increased emphasis on critical thinking skills during dental education, as noted in the American Dental Education Association's Competencies for the New General Dentist. In order to achieve this goal, educational exercises must be introduced to increase the use of critical thinking skills early in the dental curriculum, with continued reinforcement as students progress through subsequent years. Described in this article is one approach to increasing student exposure to critical thinking during the early basic science curriculum-specifically, within the confines of a traditional histology course. A method of utilizing the medical and dental research literature to reinforce and enliven the concepts taught in histology is described, along with an approach for using peer-to-peer presentations to demonstrate the tools needed to critically evaluate research studies and their presentation in published articles. This approach, which could be applied to any basic science course, will result in a stronger foundation on which students can build their EBD and critical thinking skills. PMID:24609340

  5. Passive damping in EDS maglev systems.

    SciTech Connect

    Rote, D. M.

    2002-05-03

    There continues to be strong interest in the subjects of damping and drag forces associated with electrodynamic suspension (EDS) systems. While electromagnetic drag forces resist the forward motion of a vehicle and therefore consume energy, damping forces control, at least in part, the response of the vehicle to disturbances. Ideally, one would like to reduce the drag forces as much as possible while retaining adequate damping forces to insure dynamic stability and satisfactory ride quality. These two goals turn out to be difficult to achieve in practice. It is well known that maglev systems tend to be intrinsically under damped. Consequently it is often necessary in a practical system design to enhance the damping passively or actively. For reasons of cost and simplicity, it is desirable to rely as much as possible on passive damping mechanisms. In this paper, rough estimates are made of the passive damping and drag forces caused by various mechanisms in EDS systems. No attention will be given to active control systems or secondary suspension systems which are obvious ways to augment passive damping mechanisms if the latter prove to be inadequate.

  6. Adolescent violence screening in the ED.

    PubMed

    Copelan, Russell I; Messer, Melissa A; Ashley, David J

    2006-09-01

    Youth violence is widely recognized as a major public health problem. Adolescent suicidality (ideation, behavior, or both) is disturbingly common in the United States, and homicide remains one of the leading causes of death for young people aged 10 to 24 years. Assessing youth suicidality and homicidality in the emergency department (ED) is a complex and challenging task. Evidence about the value of available ED risk assessments is not encouraging. Attempts to develop models that predict violence have in part been unsuccessful from the fact that ideation is common and the value of depression is hard to determine. The current study presents an empirically based assessment (adolescent and child urgent threat evaluation) and algorithm (violence ideation and suicidality treatment algorithm) evaluating the impact of ideation and nonideation states on attempt among clinical samples, such as serotonin reuptake inhibitor akathisia and acute adjustment disorders. The authors suggest important time-related factors and easy-to-administer procedures when assessing near-future youth violence. A validated suicide-homicide final common pathway model is discussed. PMID:16938598

  7. Comprehensive risk reduction in patients with atrial fibrillation: emerging diagnostic and therapeutic options—a report from the 3rd Atrial Fibrillation Competence NETwork/European Heart Rhythm Association consensus conference

    PubMed Central

    Kirchhof, Paulus; Lip, Gregory Y.H.; Van Gelder, Isabelle C.; Bax, Jeroen; Hylek, Elaine; Kaab, Stefan; Schotten, Ulrich; Wegscheider, Karl; Boriani, Giuseppe; Brandes, Axel; Ezekowitz, Michael; Diener, Hans; Haegeli, Laurent; Heidbuchel, Hein; Lane, Deirdre; Mont, Luis; Willems, Stephan; Dorian, Paul; Aunes-Jansson, Maria; Blomstrom-Lundqvist, Carina; Borentain, Maria; Breitenstein, Stefanie; Brueckmann, Martina; Cater, Nilo; Clemens, Andreas; Dobrev, Dobromir; Dubner, Sergio; Edvardsson, Nils G.; Friberg, Leif; Goette, Andreas; Gulizia, Michele; Hatala, Robert; Horwood, Jenny; Szumowski, Lukas; Kappenberger, Lukas; Kautzner, Josef; Leute, Angelika; Lobban, Trudie; Meyer, Ralf; Millerhagen, Jay; Morgan, John; Muenzel, Felix; Nabauer, Michael; Baertels, Christoph; Oeff, Michael; Paar, Dieter; Polifka, Juergen; Ravens, Ursula; Rosin, Ludger; Stegink, W.; Steinbeck, Gerhard; Vardas, Panos; Vincent, Alphons; Walter, Maureen; Breithardt, Günter; Camm, A. John

    2012-01-01

    While management of atrial fibrillation (AF) patients is improved by guideline-conform application of anticoagulant therapy, rate control, rhythm control, and therapy of accompanying heart disease, the morbidity and mortality associated with AF remain unacceptably high. This paper describes the proceedings of the 3rd Atrial Fibrillation NETwork (AFNET)/European Heart Rhythm Association (EHRA) consensus conference that convened over 60 scientists and representatives from industry to jointly discuss emerging therapeutic and diagnostic improvements to achieve better management of AF patients. The paper covers four chapters: (i) risk factors and risk markers for AF; (ii) pathophysiological classification of AF; (iii) relevance of monitored AF duration for AF-related outcomes; and (iv) perspectives and needs for implementing better antithrombotic therapy. Relevant published literature for each section is covered, and suggestions for the improvement of management in each area are put forward. Combined, the propositions formulate a perspective to implement comprehensive management in AF. PMID:21791573

  8. The era of whiter teeth: advertising in American dentistry 1910-1950.

    PubMed

    Grumsen, Stine

    2009-01-01

    It has often been argued that the public image of dentists has been tainted by association with fear and pain into an image of evil 'psychodontists' and that there is an apparent lack of 'role models' in popular film, television, art and literature concerned with dentistry. This paper argues that we get a different picture when looking at different media. Advertisements introduce into a public domain, positive images of dentistry which crucially differ from the images found in other popular media. This paper traces the public image of dentistry in early 20th-century America, as seen through dentifrice advertisements, and suggests three important reasons for studying advertisements: First, advertisements provide a supplement to studies of popular images of dentistry carried out so far. Second, advertisements have played an important part in advancing oral hygiene as a public concern. And third, advertisements provide the historian of dentistry with a unique opportunity for analyzing the complex and interwoven relationship of popular and professional discourses, since ads have acted as catalysts for professional discussions and self-reflection among dentists. PMID:19860287

  9. Student self-confidence in coping with uncooperative behaviours in paediatric dentistry.

    PubMed

    Batista, C G; Nascimento, C L; Rolim, G S; Rocha, R A S S; Rodrigues, A F; Ambrosano, G M B; Moraes, A B A

    2011-11-01

    During paediatric dental treatment, non-collaboration and fearful reactions are frequently observed in the child client. The dentistry student must be prepared to cope with these reactions, particularly considering the importance of the relationship between dentists and patients in the promotion of oral health. The present study aimed to assess undergraduate dentistry students' perceptions of their ability to cope with non-collaboration situations in paediatric dentistry. A Likert-style questionnaire was used to analyse students' self-confidence levels, and proposed solutions to 10 problem situations the students would be likely to encounter were recorded. The questionnaire was administered to two undergraduate dentistry student groups from two different Brazilian Public Faculties, comprising 122 respondents. The self-confidence analysis indicated that it varied according to the extent of the child's reaction and the invasiveness of the procedure. Responses to the open-ended questions were categorised by solution proposed, and the analysis indicated that the most frequent responses were categorised as follows: tranquilising, explanation and restriction. Significant differences were found in tranquilising (with higher values for Faculty 2 than 1, and higher values for female students than male students at Faculty 2) and restriction (with higher values for female students compared with male student at both Faculties). The results and discussion focused on the aspects of training dentistry students' social and behavioural management skills. PMID:21985202

  10. [The Family Health Program (FHP) and human resources: perceptions of students from two different dentistry schools].

    PubMed

    Sanchez, Heriberto Fiúza; Drumond, Marisa Maia; Vilaça, Enio Lacerda

    2008-01-01

    The purpose of this study was to evaluate the perceptions and opinions of dental students from two different Dentistry Schools in Brazil, both known here as Dentistry Schools 1 and 2 about the Family Health Program--FHP. The study analyzed if the Dentistry Schools had any influence on the students, graduating professionals with humanitarian and social sensibility, which are considered very important prerequisites for those who wish to work on this governmental health program, as well as searching for professional expectation of the students. Individual questionnaires were applied by only one researcher among the students who took part in the study. Answers were analysed by the Epi-Info program and results showed that difficulties related to the job market may be influencing students to join the FHP. Results also reveal that students consider technician an important prerequisite for dentists who wish to work on this governmental program. Significant statistical differences between the students were found: those who were graduating in Dentistry School 1 seemed more adequate to FHP and the reason for this difference may be the Supervised Training Program, a unit available on this Dentistry School that enables the students face the reality of FHP, as well the social and economical reality of the families assisted by this program. PMID:18813569

  11. [The dentist between medicine and cosmetology. Ethical shortcomings of the esthetics boom in dentistry].

    PubMed

    Maio, Giovanni

    2009-01-01

    Dentistry has evolved from a genuine medical practice to a mere business. From an ethical point of view it is asked whether this evolution creates more problems than it solves. The paper elaborates four arguments against this evolution and shows that aesthetics in dentistry which works only according to market categories runs the risk of loosing the view for the real need of patients. Dentistry which comprehends itself as part of a market will be nothing else than a part of a beauty industry which has the only aim to sell something, but not the aim to help people. Such a dentistry makes profit from the ideology of a society which serves only vanity, youthfulness and personal success and which is losing the sight for real values. The real value of man cannot be reduced to his appearance and medicine as an art should feel the obligation to resist these modern ideologies and should help people to get a more authentic attitude to themselves. If modern dentistry fails to think about these implications it will lose its identity as medicine, which would be too great a loss. PMID:19227803

  12. Educators' and Applicants' Views of the Postdoctoral Pediatric Dentistry Admission Process: A Qualitative Study.

    PubMed

    Ricker, Kevin; Mihas, Paul; Lee, Jessica Y; Guthmiller, Janet M; Roberts, Michael W; Divaris, Kimon

    2015-11-01

    The postdoctoral application and matching process in dental education is a high-stakes and resource-intensive process for all involved. While programs seek the most qualified candidates, applicants strive to be competitive to increase their likelihood of being accepted to a desirable program. There are limited data regarding either subjective or objective factors underlying the complex interplay between programs and applicants. This qualitative study sought to provide insight into the stakeholders' experiences and views on the matching process. Telephone and in-person interviews were conducted with ten pediatric dentistry program directors and ten recent applicants to pediatric dentistry programs in the United States in 2013-14. Participants were selected to represent the geographic (five districts of the American Academy of Pediatric Dentistry) and institutional (hospital- or university-based) diversity of pediatric dentistry programs. Interviews were recorded and transcribed verbatim. Veracity and need for more information were the themes most often articulated by both groups. The program directors most valued teachability and self-motivation as desirable applicant characteristics. The applicants relied primarily on subjective sources to gather information about programs and prioritized location and financial factors as pivotal for their rankings. Both groups appreciated the uniformity of the current application process and highlighted several weaknesses and areas for improvement. These results shed light on the postdoctoral matching process in pediatric dentistry via a qualitative description of stakeholders' experiences and viewpoints. These insights can serve as a basis for improving and refining the matching process. PMID:26522631

  13. Real-World Use of 3rd Line Therapy for Multiple Myeloma in Austria: An Austrian Myeloma Registry (AMR) Analysis of the Therapeutic Landscape and Clinical Outcomes prior to the Use of Next Generation Myeloma Therapeutics

    PubMed Central

    Willenbacher, Ella; Weger, Roman; Rochau, Ursula; Siebert, Uwe; Willenbacher, Wolfgang

    2016-01-01

    Objective Clinical trials demonstrate improving survival in patients with multiple myeloma (MM) after treatment. However, it is unclear whether increased survival translates to a similar benefit in a real world setting. Methods We analyzed the overall survival of 347 multiple myeloma patients in Austria by means of a national registry (AMR), focused on results from 3rd and later lines of therapy. This benchmark was chosen to define a baseline prior to the broad application of upcoming 2nd generation drugs (carfilzomib, pomalidomide). Results Projected 10 years survival for patients with MM in Austria is estimated to be 56% in patients diagnosed in between the years 2011–2014, 21% in patients with a diagnosis made between 2000–2005, and 39% in those with a diagnosis made between 2006–2010). For the same intervals a significant increase in the use of both bortezomib, lenalidomide and thalidomide—so called IMiDs (from 2005 onwards) and their simultaneous use in combination therapies (from 2010 onwards) could be shown. The use of autologous transplantation (ASCT) remained more or less constant at ~ 35% of patients in the 1st line setting over the whole period, comparing well to international practice patterns, while the use of 2nd line ASCT increased from 5.5% to 18.7% of patients. Patients in 3rd or later line treatment (n = 105), showed that even in relapsed and refractory disease median survival was 27 months with a considerable proportion of long-term survivors (~20%). Conclusion & Perspective With the expected emergence of additional active anti-myeloma compounds, we aim to assess survival in patients with relapsed and refractory MM. PMID:26937956

  14. Dentistry: Careers in Dentistry

    MedlinePlus

    ... Twitter ADA News Twitter ADA Facebook GKAS Facebook New Dentist Blog Press Room Press Room Home Contact News Releases Press Kits ADA Positions Advertise Media Kit Classifieds Digital Ads ADA News The Journal ...

  15. Contribution of ED admissions to inpatient hospital revenue.

    PubMed

    Sacchetti, Alfred; Harris, Russell H; Warden, Todd; Roth, Sandra

    2002-01-01

    Emergency department (ED) practices are traditionally profiled in terms of their patient encounters. Such evaluations reflect a preponderance of outpatient visits while crediting income from admitted patients to traditional hospital-based services. This study evaluates the contribution of ED admissions to inpatient hospital revenue. The study was set at an urban tertiary care community hospital with university affiliation. Information referable to ED patients was collected from the hospital's Universal Billing Code (UB-92)-based patient information warehouse. Data fields referable to hospital charges, insurance type, and disposition were used for analysis of a 1-year period from September 1, 1998 to August 31, 1999. Statistical analysis was through chi square and ANOVA. During the study period 33,174 patients were treated in the ED with 6,671 (20%) admitted to inpatient services. Total hospital charges for all ED patients during this time were $107 million dollars with $9.1 million (8.5%) generated from discharged patients and $98.0 million (91.5%) from admitted ED patients (P <.001). Mean charges for individual discharged patients were $344.10 whereas for individual admitted patients mean charges were $14,692.28. (P <.001) Medicaid and self pay represented 55.4% of the insurance coverage for discharged ED patients whereas these same insurance classes accounted for only 16.3% of admitted patients. (P <.001) Medicare visits accounted for 12.7% of discharged ED patients but 60.7% of admitted patients (P <.001). Total hospital gross revenue for inpatient services for the study period was $288 million of which 34% was contributed from admitted ED patients. ED services represent a major source of inpatient hospital revenue. The recognition of the ED's potential in this area may be lost if income from patients admitted through the ED is credited to traditional hospital-based services. PMID:11781909

  16. Capillary Study - Skylab Student Experiment ED-72

    NASA Technical Reports Server (NTRS)

    1973-01-01

    This chart describes the Skylab student experiment ED-72, Capillary Study, proposed by Roger G. Johnson of St. Paul, Mirnesota. Johnson theorized that capillary rise might continue to infinity in Skylab's zero-gravity environment. The behavior of fluids, particularly their flow properties in a low-gravity environment, had been important from the time that Robert H. Goddard launched his liquid-fueled rockets in the 1920's to the more sophisticated space systems of the day. It was necessary to design fluid-flow systems that would not only overcome the lack of gravity but also overcome, or take advantage of, the effect of surface tension. In March 1972, NASA and the National Science Teachers Association selected 25 experiment proposals for flight on Skylab. Science advisors from the Marshall Space Flight Center aided and assisted the students in developing the proposals for flight on Skylab.

  17. BOOK REVIEW: Modern Physics, 3rd edn

    NASA Astrophysics Data System (ADS)

    Lovett, David

    1999-09-01

    The number of broadly based physics texts written at a level corresponding to second year and above of UK physics degrees is limited. This is such a book thoroughly updated in a third edition, the first edition having been published 20 years ago. The book is unusual in that the reader is referred to the Freeman website www.whfreeman.com/physics for some additional sections. It will be interesting to see whether this proves to be an attractive feature. The coverage reflects the US emphasis on topics and contains both theoretical and experimental details. It should not be regarded as an introductory text although it is clearly written. Thus the first two chapters take the reader straight into relativity, concentrating mainly on special relativity but going on to general relativity. From here the reader is led to ideas of quantization of charge, light and energy, followed by an exploration of the nuclear atom, wavelike properties of particles and Schrödinger's equation. Solution of this equation for the hydrogen atom introduces a section on spectroscopy. The next chapter on statistical physics includes Fermi-Dirac and Bose-Einstein statistics and brings to a close Part 1, which concentrates on the theoretical groundwork. Consistent with its title, the book does not cover traditional aspects of thermodynamics and electromagnetic theory. Part 2 is entitled `Applications' and begins with a chapter on molecular structure and spectra. Lasers and masers are included here but geometrical, physical and nonlinear optics get limited or no coverage. Solid state physics follows but, despite the title of the book, there is little on modern devices, although the section on superconductivity mentions high temperature materials. The chapters on nuclear physics, fission, fusion reactors and medical applications and a chapter on particle physics are comprehensive. Finally a chapter on astrophysics and cosmology is referred to, but the reader must find this at the website. As this is an attractive chapter it is a pity that it is not printed within the book. Although viewing the chapter on the Web gives the benefit of full colour, it is not easy to read the textual information off the screen. Within the printed material, there are good diagrams with the addition of a single colour, burgundy, a colour that is wasted on those of us who are red-green colour-blind! Each chapter is provided with an impressive number of graded problems (it is not easy to provide such a comprehensive range of problems at this level) and numerical answers are given in the back for every third problem. There is a student solution manual available for these problems and a complete instructor's solution manual has also been produced. It is therefore a useful book for both students and lecturers.

  18. Radiation Therapy Physics, 3rd Edition

    NASA Astrophysics Data System (ADS)

    Hendee, William R.; Ibbott, Geoffrey S.; Hendee, Eric G.

    2004-08-01

    The Third Edition of Radiation Therapy Physics addresses in concise fashion the fundamental diagnostic radiologic physics principles as well as their clinical implications. Along with coverage of the concepts and applications for the radiation treatment of cancer patients, the authors have included reviews of the most up-to-date instrumentation and critical historical links. The text includes coverage of imaging in therapy planning and surveillance, calibration protocols, and precision radiation therapy, as well as discussion of relevant regulation and compliance activities. It contains an updated and expanded section on computer applications in radiation therapy and electron beam therapy, and features enhanced user-friendliness and visual appeal with a new, easy-to-follow format, including sidebars and a larger trim size. With its user-friendly presentation and broad, comprehensive coverage of radiotherapy physics, this Third Edition doubles as a medical text and handy professional reference.

  19. Teaching Visually Impaired Children. 3rd Edition

    ERIC Educational Resources Information Center

    Bishop, Virginia E.

    2004-01-01

    In this exceptional new third edition, the author has retained much of the practical "how to" approach of the previous editions, but adds depth in two dimensions: learning theory and the educational process. This book is "so comprehensive in scope and complete in detail that it would be the most likely recommended" (from the foreword by Dr.…

  20. Gas turbine engineering handbook. 3rd.

    SciTech Connect

    Boyce, M.P.

    2006-06-15

    The third edition of the hand book is updated to cover the new generation of advanced gas turbines. It examines the benefit and some of the major problems that have been encountered by these new turbines. The book keeps abreast of the environmental changes and the industries answer to these new regulations. A chapter on case histories has been added to enable the engineer in the field to keep abreast of problems that are being encountered and the solutions that have resulted in solving them.

  1. Peace Corps. 3rd Annual Report.

    ERIC Educational Resources Information Center

    Peace Corps, Washington, DC.

    Projects, operations, and future plans are covered in this annual report for the third year of the Peace Corps. An introduction comments on returning volunteers and presents regional maps with tables for Latin America, Africa, Near East and South Asia, and Far East. Section 1 contains letters and reports from volunteers in Peru, Ivory Coast,…

  2. Spacecraft Systems Engineering, 3rd Edition

    NASA Astrophysics Data System (ADS)

    Fortescue, Peter; Stark, John; Swinerd, Graham

    2003-03-01

    Following on from the hugely successful previous editions, the third edition of Spacecraft Systems Engineering incorporates the most recent technological advances in spacecraft and satellite engineering. With emphasis on recent developments in space activities, this new edition has been completely revised. Every chapter has been updated and rewritten by an expert engineer in the field, with emphasis on the bus rather than the payload. Encompassing the fundamentals of spacecraft engineering, the book begins with front-end system-level issues, such as environment, mission analysis and system engineering, and progresses to a detailed examination of subsystem elements which represent the core of spacecraft design - mechanical, electrical, propulsion, thermal, control etc. This quantitative treatment is supplemented by an appreciation of the interactions between the elements, which deeply influence the process of spacecraft systems design. In particular the revised text includes * A new chapter on small satellites engineering and applications which has been contributed by two internationally-recognised experts, with insights into small satellite systems engineering. * Additions to the mission analysis chapter, treating issues of aero-manouevring, constellation design and small body missions. In summary, this is an outstanding textbook for aerospace engineering and design students, and offers essential reading for spacecraft engineers, designers and research scientists. The comprehensive approach provides an invaluable resource to spacecraft manufacturers and agencies across the world.

  3. Presenting the 3rd edition of WRB

    NASA Astrophysics Data System (ADS)

    Schad, Peter

    2014-05-01

    The third edition of the international soil classification system "World Reference Base for Soil Resources" (WRB) will be presented during der 20th World Congress of Soil Science, Jeju, Korea, June 9-12. The second edition was published in 2006 and the first in 1998, which, in turn, was based on the Legends of the FAO Soil Map of the World. Now, after eight years of experience with the second edition, time was due for a revision. The major changes are: 1. The second edition had two different qualifier sequences for naming soils (IUSS Working Group WRB, 2006, update 2007) and for creating map legends (Guidelines for creating small-scale map legends using the WRB; IUSS Working Group WRB, 2010). The third edition has one sequence for both. The qualifiers for every Reference Soil Group are subdivided into a small number of main qualifiers that are ranked and a larger number of additional qualifiers that are not ranked and given in an alphabetical order. The name of a pedon must comprise all applying qualifiers. The name of a map unit comprises a specified small number of main qualifiers, depending on scale, whereas all other qualifiers are optional. 2. For some soils, problems have been reported. Albeluvisols are difficult to detect in the field and cover only small surfaces. They have been replaced by Retisols, which have a broader definition that is easier to identify in the field. 3. The use of some diagnostics was difficult. Examples are: The argic horizon had too low limit values, so we had much more soils with argic horizons than justified. The definitions of the cambic horizon and the gleyic and stagnic properties were not precise enough. Organic material, mollic and umbric horizons had an unnecessary complicated definition. 4. Some changes in the key to the Reference Soil Groups seemed to be justified. Fluvisols were moved further down, Durisols and Gypsisols switched their position, also Arenosols and Cambisols. The soils with an argic horizon were brought into a new sequence. 5. The umbrella function of WRB aims to allow the allocation of soil classes existing in a national classification system within the WRB. Characteristics that in a national system are regarded to be important must be considered in WRB - not necessarily at the highest level, but at least somewhere. The third edition of WRB allows a better accommodation of soil types, e.g., of the Australian and the Brazilian system. 6. Some environments or even ecoregions had not been well represented in WRB. The third edition allows a better accommodation of soils of ultra-continental permafrost regions, acid-sulphate soils and Technosols. 7. How to explain complicated sets of characteristics? For the third edition, efforts were made to give better structured definitions that can be more easily grasped. The editors of the third edition are convinced that the new WRB allows a more precise classification of soils including both, a better naming of pedons and a better elaboration of soil map legends.

  4. The 3rd International Microgravity Combustion Workshop

    NASA Technical Reports Server (NTRS)

    Ross, Howard D. (Compiler)

    1995-01-01

    This Conference Publication contains 71 papers presented at the Third International Microgravity Combustion Workshop held in Cleveland, Ohio, from April 11 to 13, 1995. The purpose of the workshop was twofold: to exchange information about the progress and promise of combustion science in microgravity and to provide a forum to discuss which areas in microgravity combustion science need to be expanded profitably and which should be included in upcoming NASA Research Announcements (NRA).

  5. Hydrology course begins 3rd year

    NASA Astrophysics Data System (ADS)

    On September 1, the Interuniversity Post-graduate Program in Hydrology at the Free University of Brussels will open its doors for its third academic year. This year, 30 students from all over the world will form the entering class. The program is under the joint guidance of the University of Brussels, the universities of Ghent, Leuven (Louvain), and Antwerp, and the Royal Meteorological Institute.The first year of the 2-year program, leading to a diploma in hydrology, includes field training, prerequisite courses, and basic courses in hydraulics, hydrometry, meteorology, hydrology, water management, and water quality and treatment. The second year, which leads to an M.Sc. degree in hydrology, includes optional courses in surface hydrology, groundwater hydrology, and pollution control; seminars, additional field training; and a master's thesis.

  6. Cerebral computed tomography, 3rd Edition

    SciTech Connect

    Weisberg, L.; Nice, C.

    1988-01-01

    This book is an introduction to the utilization of computed tomography in evaluating patients with intracranial and orbital disorders. It features clinical correlations and provides an overview of general principles, performance, and normal anatomy of CT. It covers evaluation of specific neurologic signs and symptoms, including stroke, metastatic disease, increased intracranial pressure, head injury, pediatric conditions, and more.

  7. Qualitative analysis of two reconstruction techniques and their application in dentistry

    NASA Astrophysics Data System (ADS)

    Nonato, Luis G.; Minghim, Rosane; Shimabukuro, Milton H.

    2000-10-01

    Although visualization in the field of dentistry has some of the same requirements as the medicine field, the differences in goal demand specific approaches. This paper reports on the implementation of two fundamentally different approaches to reconstruction of structures from planar cross sections and their application to dentistry data. One of the approaches was an implementation of a distance-based sampling technique, and the other is a new algorithm, based on the Delaunay triangulation. Both were tested using contour data of teeth and the results are compared here in the light of the target applications, which are teaching and training dentistry, as well as simulation of dental procedures and illnesses. Widely mentioned problems encountered in local reconstruction methods such as marching cubes for these cases are clearly illustrated in this paper, and a very satisfactory alternative is given.

  8. The Prediction in Computer Color Matching of Dentistry Based on GA+BP Neural Network

    PubMed Central

    Li, Haisheng; Lai, Long; Chen, Li; Lu, Cheng; Cai, Qiang

    2015-01-01

    Although the use of computer color matching can reduce the influence of subjective factors by technicians, matching the color of a natural tooth with a ceramic restoration is still one of the most challenging topics in esthetic prosthodontics. Back propagation neural network (BPNN) has already been introduced into the computer color matching in dentistry, but it has disadvantages such as unstable and low accuracy. In our study, we adopt genetic algorithm (GA) to optimize the initial weights and threshold values in BPNN for improving the matching precision. To our knowledge, we firstly combine the BPNN with GA in computer color matching in dentistry. Extensive experiments demonstrate that the proposed method improves the precision and prediction robustness of the color matching in restorative dentistry. PMID:25873990

  9. [Occupational risk due to use of mercury in dentistry: a bibliographic review].

    PubMed

    Grigoletto, Jamyle Calencio; Oliveira, Aline da Silva; Muñoz, Susana Inés Segura; Alberguini, Leny Borghesan Albertini; Takayanagui, Angela Maria Magosso

    2008-01-01

    The aim of this study is to present data concerning hazardous waste management in the health area, with emphasis to the utilization of mercury in dentistry. The study was based on a bibliographic review regarding the use of mercury in dental fillings and its potential toxicological risks for patients and due to occupational exposure. The studies also take into consideration national and international recommendations on the use of mercury and its occupational exposure limits. The review of the literature reveals the potential toxic effects of mercury both on the environment and on human health. Given that the use of dental amalgam is still very frequent in dentistry, there is a need for safety regulations in order to minimize the risks posed by dental amalgam in dentistry proceedings based on technical guidelines for its use, discard and final disposal. PMID:18813570

  10. Could your ED meet a 15-minute service pledge?

    PubMed

    2003-01-01

    Patients dissatisfied with long waits is one of the most pressing problems that emergency department (ED) managers must address, and there is a trend of EDs offering service guarantees to patients to obtain higher satisfaction scores. At participating EDs, patients are offered letters of apology, movie passes, or a free visit if the guarantee isn't met. Census increased dramatically after the guarantee programs were implemented. To ensure the guarantees are met, additional nursing staff or ED beds may need to be added. PMID:12515111

  11. 77 FR 42510 - Notice of Inventory Completion: New York University College of Dentistry, New York, NY; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-19

    ... National Park Service Notice of Inventory Completion: New York University College of Dentistry, New York.... 3003, of the completion of an inventory of human remains under the control of the New York University College of Dentistry, New York, NY. The human remains were removed from Bronx County, NY. This notice...

  12. Postdoctoral Education in Dentistry: Preparing Dental Practitioners To Meet the Oral Health Needs of America in the 21st Century.

    ERIC Educational Resources Information Center

    Glassman, Paul; Meyerowitz, Cyril

    1999-01-01

    Reviews the history of postdoctoral programs in dentistry and medicine, focusing on postdoctoral general dentistry education, and describes the changing health-care environment in which future dental professionals will practice, relating the dental postdoctoral experience to that in medicine. A strategy is presented to prepare dental practitioners…

  13. Dental student perception and assessment of their clinical knowledge in educating patients about preventive dentistry.

    PubMed

    Metz, M J; Miller, C J; Lin, W S; Abdel-Azim, T; Zandinejad, A; Crim, G A

    2015-05-01

    In today's dental school curricula, an increasing amount of time is dedicated to technological advances, and preventive dentistry topics may not be adequately addressed. Freshman (D1) students participated in a new Introduction to Preventive Dentistry course, which consisted of didactic lectures, active learning breakout sessions and case-based studies. The goal of this study was to determine if D1 dental students completing the course had a better knowledge and comfort level with basic preventive dentistry concepts and caries risk assessment than the upcoming graduating senior dental students. Following the completion of the course, D1 students were administered a survey that assessed their comfort level describing preventive dentistry topics to patients. This was immediately followed by an unannounced examination over the same topics. Senior (D4) students, who had not taken a formal course, reported statistically significant higher comfort levels than D1 students. However, the D4s scored significantly lower in all of the examination areas than the D1 students. Higher scores in D1s may have been due to recent exposure to the course material. However, the basic nature of the content-specific questions should be easily answered by novice practitioners educating their patients on oral disease prevention. As the current data shows lower content-specific scores of basic preventive dentistry knowledge amongst graduating D4 students, this may indicate a need for more guidance and education of students during the patient care. This study showed that implementation of a formalised course for D1 students can successfully ameliorate deficiencies in knowledge of preventive dentistry topics. PMID:25040313

  14. Public health dentistry pioneer: Alfred Kantorowicz in exile from Nazi rule.

    PubMed

    Reisman, Arnold

    2007-01-01

    This paper discusses a dimly-lit and largely unknown time in the life of a great pediatric and public health dentistry pioneer. Alfred Kantorowicz survived extermination thanks to the fact that in 1933, Turkey began to reform its higher education using invitees fleeing the Nazis and for whom America was out of reach because of restrictive immigration laws and widespread anti-Semitic hiring policies at its universities. Kantorowicz introduced public health dentistry to Turkey years before it was practiced in the United States. PMID:17564145

  15. Evidence-based dentistry: Part II. Searching for answers to clinical questions: how to use MEDLINE.

    PubMed

    Sutherland, S E

    2001-05-01

    The ability to conduct efficient literature searches is fundamental to the practice of evidence-based dentistry. In the second part of this series on evidence-based dentistry, strategic literature search techniques are discussed. MEDLINE, because of its breadth, depth and continuous maintenance by the U.S. National Library of Medicine (NLM), is the best source of evidence for health care. Although there are many gateways to MEDLINE, this paper highlights the user-friendly versions of MEDLINE offered free on the Internet by the NLM. The use of well-established search tactics and the unique features of the NLM sites facilitate rapid, effective literature searches. PMID:11398391

  16. Technological Innovations in the Restorative Department at the University of Tennessee College of Dentistry.

    PubMed

    Harrison, Janet L; Simon, James F; Dehghan, Mojdeh

    2015-01-01

    The UT College of Dentistry has been one of the leaders in the introduction of the CAD/CAM delivery of dentistry to the dental students. The integration of technology into a dental school curriculum requires a change in thinking and a modification of the curriculum in order to introduce it to the present day students This article updates the integration of the CEREC system into the UT Dental School curriculum, discussing the changes in equipment and teaching techniques since the last article in 2012. PMID:27008767

  17. Success of Elective Cholecystectomy Treatment Plans After ED Visit

    PubMed Central

    Bingener, Juliane; Thomsen, Kristine M.; McConico, Andrea; Hess, Erik P.; Habermann, Elizabeth B.

    2014-01-01

    Introduction Differentiation between patients with acute cholecystitis and patients with severe biliary colic can be challenging. Patients with undiagnosed acute cholecystitis can incur repeat emergency department (ED) visits, which is resource intensive. Methods Billing records from 2000 – 2013 of all adults who visited the ED in the 30 days preceding their cholecystectomy were analyzed. Patients who were discharged from the ED and underwent elective cholecystectomy were compared to those who were discharged and returned to the ED within 30 days. T-tests, chi-square tests and multivariable analysis were utilized as appropriate. Results From 2000 - 2013, 3138 patients (34%) presented to the ED within 30 days prior to surgery, 63% were women, mean age 51 years, and of those 1625 were directly admitted from the ED for cholecystectomy while 1513 patients left the ED to return for an elective cholecystectomy. Patients who were discharged were younger (mean age 49 vs 54 yrs, p<0.001) and had shorter ED stays (5.9 vs 7.2 hrs, p<0.001) than the patients admitted immediately. Of the discharged patients, 303 (20%) returned to the ED within 30 days to undergo urgent cholecystectomy. Compared to patients with successful elective cholecystectomy after the ED visit, those who failed the pathway were more likely to have an ASA score > 3 and were <40 or ≥60 compared to the successful group. Conclusions One in five patients failed the elective cholecystectomy pathway after ED discharge, leading to additional patient distress and use of resources. Further risk factor assessment may help design efficient care pathways. PMID:25043530

  18. MedEdPORTAL: Educational Scholarship for Teaching

    ERIC Educational Resources Information Center

    Reynolds, Robby J.; Candler, Christopher S.

    2008-01-01

    MedEdPORTAL is an online publication service provided at no charge by the Association of American Medical Colleges (AAMC). The intent is to promote collaboration and educational scholarship by helping educators publish and share educational resources. With MedEdPORTAL, users can quickly locate high-quality, peer-reviewed teaching materials in both…

  19. Teaching Elementary School Social Studies Methods under edTPA

    ERIC Educational Resources Information Center

    An, Sohyun

    2016-01-01

    This article reports a self-study that analyzes my experience as a teacher educator navigating a turbulent educational landscape with the advent of edTPA. The data consist of my journal entries, the syllabi, handouts, work submitted by my students, and course evaluations. Data were analyzed by using an inductive process to describe how the edTPA…

  20. A Different Look at Accountability: The EdVisions Approach.

    ERIC Educational Resources Information Center

    Newell, Ronald J.

    2002-01-01

    Describes an EdVisions Cooperative made up of eight small charter schools in Minnesota. EdVisions, funded by the Bill & Melinda Gates Foundation, provides charter schools with guidelines to develop teacher-driven professional accountability systems linked to project-based learning for students. (PKP)