Seismic Moment and Recurrence using Luminescence Dating Techniques: Characterizing brittle fault zone materials suitable for luminescence dating

Science.gov (United States)

Tsakalos, E.; Lin, A.; Bassiakos, Y.; Kazantzaki, M.; Filippaki, E.

2017-12-01

During a seismic-geodynamic process, frictional heating and pressure are generated on sediments fragments resulting in deformation and alteration of minerals contained in them. The luminescence signal enclosed in minerals crystal lattice can be affected and even zeroed during such an event. This has been breakthrough in geochronological studies as it could be utilized as a chronometer for the previous seismic activity of a tectonically active area. Although the employment of luminescence dating has in some cases been successfully described, a comprehensive study outlining and defining protocols for routine luminescence dating applied to neotectonic studies has not been forthcoming. This study is the experimental investigation, recording and parameterization of the effects of tectonic phenomena on minerals luminescence signal and the development of detailed protocols for the standardization of the luminescence methodology for directly dating deformed geological formations, so that the long-term temporal behaviour of seismically active faults could be reasonably understood and modeled. This will be achieved by: a) identifying and proposing brittle fault zone materials suitable for luminescence dating using petrological, mineralogical and chemical analyses and b) investigating the "zeroing" potential of the luminescence signal of minerals contained in fault zone materials by employing experimental simulations of tectonic processes in the laboratory, combined with luminescence measurements on samples collected from real fault zones. For this to be achieved, a number of samples collected from four faults of four different geographical regions will be used. This preliminary-first step of the study presents the microstructural, and mineralogical analyses for the characterization of brittle fault zone materials that contain suitable minerals for luminescence dating (e.g., quartz and feldspar). The results showed that the collected samples are seismically deformed fault

Change in the Green-Up Dates for Quercus mongolica in Northeast China and Its Climate-Driven Mechanism from 1962 to 2012.

Science.gov (United States)

Fan, Deqin; Zhu, Wenquan; Zheng, Zhoutao; Zhang, Donghai; Pan, Yaozhong; Jiang, Nan; Zhou, Xiafei

2015-01-01

The currently available studies on the green-up date were mainly based on ground observations and/or satellite data, and few model simulations integrated with wide coverage satellite data have been reported at large scale over a long time period (i.e., > 30 years). In this study, we combined phenology mechanism model, long-term climate data and synoptic scale remote sensing data to investigate the change in the green-up dates for Quercus mongolica over 33 weather stations in Northeast China and its climate-driven mechanism during 1962-2012. The results indicated that the unified phenology model can be well parameterized with the satellite derived green-up dates. The optimal daily mean temperature for chilling effect was between -27°C and 1°C for Q. mongolica in Northeast China, while the optimal daily mean temperature for forcing effect was above -3°C. The green-up dates for Q. mongolica across Northeast China showed a delayed latitudinal gradient of 2.699 days degree-1, with the earliest date on the Julian day 93 (i.e., 3th April) in the south and the latest date on the Julian day 129 (i.e., 9th May) in the north. The green-up date for Q. mongolica in Northeast China has advanced 6.6 days (1.3 days decade-1) from 1962 to 2012. With the prevailing warming in autumn, winter and spring in Northeast China during the past 51 years, the chilling effect for Q. mongolica has been weakened, while the forcing effect has been enhanced. The advancing trend in the green-up dates for Q. mongolica implied that the enhanced forcing effect to accelerate green-up was stronger than the weakened chilling effect to hold back green-up while the changes of both effects were caused by the warming climate.

Change in the Green-Up Dates for Quercus mongolica in Northeast China and Its Climate-Driven Mechanism from 1962 to 2012.

Directory of Open Access Journals (Sweden)

Deqin Fan

Full Text Available The currently available studies on the green-up date were mainly based on ground observations and/or satellite data, and few model simulations integrated with wide coverage satellite data have been reported at large scale over a long time period (i.e., > 30 years. In this study, we combined phenology mechanism model, long-term climate data and synoptic scale remote sensing data to investigate the change in the green-up dates for Quercus mongolica over 33 weather stations in Northeast China and its climate-driven mechanism during 1962-2012. The results indicated that the unified phenology model can be well parameterized with the satellite derived green-up dates. The optimal daily mean temperature for chilling effect was between -27°C and 1°C for Q. mongolica in Northeast China, while the optimal daily mean temperature for forcing effect was above -3°C. The green-up dates for Q. mongolica across Northeast China showed a delayed latitudinal gradient of 2.699 days degree-1, with the earliest date on the Julian day 93 (i.e., 3th April in the south and the latest date on the Julian day 129 (i.e., 9th May in the north. The green-up date for Q. mongolica in Northeast China has advanced 6.6 days (1.3 days decade-1 from 1962 to 2012. With the prevailing warming in autumn, winter and spring in Northeast China during the past 51 years, the chilling effect for Q. mongolica has been weakened, while the forcing effect has been enhanced. The advancing trend in the green-up dates for Q. mongolica implied that the enhanced forcing effect to accelerate green-up was stronger than the weakened chilling effect to hold back green-up while the changes of both effects were caused by the warming climate.

Up-to-date, real-time localized ITS services provided on a mobile platform

DEFF Research Database (Denmark)

Tadayoni, Reza; Kloch, Christian

2011-01-01

and connection to the mobile platform, the smart phone provides the technologies and power to become the platform to provide and access up-to-date, real time infor-mation as requested by the drivers and becomes a central point for networking and coordinated actions. The purpose of this paper is to provide......-to-date infrastructure technology and is carried by lay-mans, like the smart-phones (with GPS receiver, Wi-Fi, Bluetooth, high speed cellular data connection and a large touch screen). With an 18 month replacement rate [1], and possibilities of combining navigational system, one-to-one communication, broadcast receiver...... in order to avoid local based solutions and to avoid proprietary solutions, a support that also shall be supported by political willingness above local level in order to realize the benefit of ITS....

Wasted research when systematic reviews fail to provide a complete and up-to-date evidence synthesis: the example of lung cancer

OpenAIRE

Cr?quit, Perrine; Trinquart, Ludovic; Yavchitz, Am?lie; Ravaud, Philippe

2016-01-01

Background Multiple treatments are frequently available for a given condition, and clinicians and patients need a comprehensive, up-to-date synthesis of evidence for all competing treatments. We aimed to quantify the waste of research related to the failure of systematic reviews to provide a complete and up-to-date evidence synthesis over time. Methods We performed a series of systematic overviews and networks of randomized trials assessing the gap between evidence covered by systematic revie...

Calculation and Designing of Up-to-Date Gas-Flame Plants for Metal Heating and Heat Treatment

Directory of Open Access Journals (Sweden)

V. I. Тimoshpolsky

2008-01-01

Full Text Available An analysis of development trends in the CIS machine-building industry and current status of the heating and heat treatment furnaces of main machine-building enterprises of the Republic of Belarus as of the 1st quarter of 2008 is given in the paper.The paper presents the most efficient engineering solutions from technological and economic point of view that concern calculation and designing of up-to-date gas-flame plants which are to be applied for modernization of the current heating and heat treatment furnaces of the machine-building enterprises in the Republic of Belarus.A thermo-technical calculation of main indices of the up-to-date gas-flame plant has been carried out in the paper.

Application of International Videoconferences for Continuing Medical Education Programs Related to Laparoscopic Surgery

OpenAIRE

Huang, Ke-Jian; Cen, Gang; Qiu, Zheng-Jun; Jiang, Tao; Cao, Jun; Fu, Chun-Yu

2014-01-01

Background: Continuing medical education (CME) is an effective way for practicing physicians to acquire up-to-date clinical information. Materials and Methods: We conducted four CME seminars in 2007–2010 endorsed by the Chinese Medical Association Council on Medical Education. Overseas telelectures and live case demonstrations were introduced in each seminar via telemedicine based on a digital video transport system. Network stability and packet loss were recorded. An anonymous mini-...

Dates as raw material for agricultural distilleries

Energy Technology Data Exchange (ETDEWEB)

Laczynski, B

1971-01-01

Pit-containing dates had 88.0 to 89.2% dry matter, 41.7 to 47.5% sucrose, and 2.1 to 2.9% total protein. The mechanical broken charges of raw material were steamed, dispersed to a suspension of 15 to 17/sup 0/ Balling and pH 4.8 to 5.0, enriched with P and N, inoculated with 5 to 7 % of yeast suspension, and acidified to pH > 3.5. Thermophilic yeast cultivated at 27/sup 0/ and fermented below 30/sup 0/ for 2 days gave best results. The fermented liquor had a pH > 3.5, apparent density of 2.0/sup 0/, and contained 7.5 to 9.0 EtOH. From 100 kg dates were obtained 280 t0 340 l of the 15 to 17/sup 0/ dispersion and 320 to 360 l residue containing (per l) 6.0 to 8.5 g protein and 0.04 oat units. EtOH yield (l/quintal) was 914 for potatoes, 28.54 for molasses, 36.29 for cereals, 25.15 for dates, and 18.53 for malt.

„Frage stellen, Antwort bekommen, weiterarbeiten!“ – Umfrage zur Benutzung von UpToDate an den Universitäten Freiburg, Leipzig, Münster und Regensburg

Directory of Open Access Journals (Sweden)

Obst, Oliver

2013-12-01

Full Text Available [english] UpToDate is an evidence-based resource to support clinical decision-making created by doctors. UpToDate has a wide dissemination in Germany. In a multicenter study, physicians, students, scientists and other healthcare professionals at four German universities were asked about their use of UpToDate. The survey was answered 1,083 times, including 540 doctors. 76% of the surveyed physicians (but only 54% of chief physicians used UpToDate. The lack of knowledge about UpToDate amounted to 10–41%, depending on the user group. 90 to 95% of all clinically active persons named the quick, general overview of diagnosis and therapy of diseases as the main advantage of UpToDate. Every fourth senior doctor pointed to reduced length of stay as a result of UpToDate, (almost every fourth chief physician stated that UpToDate saved costs. UpToDate is an important but expensive resource in patient care and should be promoted more aggressively by the librarians – given the existing lack of knowledge about the existence of this resource.

Dating of fossil hominid: problems and perspectives

International Nuclear Information System (INIS)

Poupeau, G.; Danon, J.; Baksi, A.K.

1984-01-01

The hominid dating anterior to the Homo Erectus has been based up to now on the rocks and minerals geochronology of vulcanic origem in stratigraphic relation with the fossils. Two methods are widely used, potassium-argon and uranium fission track dating. The vulcanic material dating; lava, lephra, associated with the hominid leavings show big difficults essentially connected to several types of contamination and modification. Two available examples inside the east-african rift show the probelms linked to these dating. The current progresses in the dating methods can contribute by one hand to a better utilization of the K-Ar and fisson track methods for the vulcanic materials. By other hand, with the introduction of new dating methods (thermoluminescence and electron paramagnetic resonance) will be possible to date directly whether the fossil bone itself or the associated sedimentar material. This open new perspectives in particular for every sites which are not inter-stratified with the vulcanic material. (L.C.) [pt

Up-to-Date on Preventive Care Services Under Affordable Care Act: A Trend Analysis From MEPS 2007-2014.

Science.gov (United States)

Hong, Young-Rock; Jo, Ara; Mainous, Arch G

2017-08-01

The utilization of preventive care services has been less than optimal. As part of an effort to address this, the Affordable Care Act (ACA) mandated that private health insurance plans cover evidence-based preventive services. To evaluate whether the provisions of ACA have increased being up-to-date on recommended preventive care services among privately insured individuals aged 18-64. Multivariate linear regression models were used to examine trends in prevalence of being up-to-date on selected preventive services, diagnosis of health conditions, and health expenditures between pre-ACA (2007-2010) and post-ACA (2011-2014). Adjusted difference-in-difference analyses were used to estimate changes in those outcomes in the privately insured that differed from changes in the uninsured (control group). After the passage of ACA, up-to-date rates of routine checkup (2.7%; 95% confidence interval, 0.8%-4.7%; P=0.007) and flu vaccination (5.9%; 95% confidence interval, 4.2%-7.6%; Ppreventive care services. Additional efforts may be required to take full advantage of the elimination of cost-sharing under the ACA.

Education and the American Indian: The Road to Self-Determination since 1928. Third Edition, Revised and Enlarged.

Science.gov (United States)

Szasz, Margaret Connell

First published in 1974, this book was the first full-length study of federal Indian education policy. This revised edition brings the material up to date with the addition of analysis and interpretation of trends and policies that shaped Indian education in the 1980s and 1990s. Chapters are arranged chronologically and cover specific eras such as…

The Accessibility of Learning Content for All Students, Including Students with Disabilities, Must Be Addressed in the Shift to Digital Instructional Materials. SETDA Policy Brief

Science.gov (United States)

Fletcher, Geoff; Levin, Doug; Lipper, Katherine; Leichty, Reg

2014-01-01

This is a time of rapid technological advancement, with innovations in education holding great promise for improving teaching and learning, particularly for students with unique needs. High-quality digital educational materials, tools, and resources offer students relevant, up-to-date, and innovative ways to acquire knowledge and skills. Created…

An Overview of the Use of Absolute Dating Techniques in Ancient Construction Materials

Directory of Open Access Journals (Sweden)

Jorge Sanjurjo-Sánchez

2016-04-01

Full Text Available The reconstruction of the chronology of historical buildings is a tricky issue, as usually there are not historical documents that allow the assessment of construction phases, and some materials are hardly reliable for the use of dating techniques (e.g., stone. However, in the last two decades, important advances on the use of absolute dating methods on building materials have increased the possibilities of reconstructing building chronologies, although some advances are still scarcely known among archaeologists and architects. Recent studies performed on several kinds of mortars, fired bricks, mud-bricks, and even stone surfaces have shown that it is possible to date them. Both radiocarbon and luminescence dating have been the most frequently used techniques but others such as archaeomagnetism can also be used in some cases. This paper intends to give an overview of the recent achievements on the use of absolute dating techniques for building materials.

From school centric to ‘material centric’ education

DEFF Research Database (Denmark)

Christensen, Suna Møller

2015-01-01

as craftsman. A pilot-project in spring 2014 revealed that designing talent education pushed teachers (who all have a personal background in vocational jobs) to challenge a theory based and in this sense school centric curriculum objectifying materials as pre-existing elements or resources in an assignment...... ([1934]2005) in ‘Art as Experience’ draws between art as an object and art as experience, this presentation examines the way in which education for particularly skilled students at vocational education schools in Denmark re-focus teachers attention to materials and student-material relations. Technically......, and re-consider relations with materials as dimensions facilitating the professional development of vocational ‘talent’. The broader topic of school centric versus ‘material centric’ education ties this research into vocational skills and craftsmanship with inquiries into framing and structuring...

Auto-regenerative TL dating with zircon inclusions from fired materials

International Nuclear Information System (INIS)

Templer, R.H.; Smith, B.W.

1988-01-01

In this paper it is shown that it is possible to date fired material using zircon inclusions. The effects of zoning and anomalous fading are overcome using an auto-regenerative dating procedure. The high radioactivity of the grains gives a measurable self-induced TL (thermoluminescence) signal within a few months. Comparison of this ''auto-regenerated'' TL with the natural TL (which has accumulated since the firing) yields the age of the material. A sensitive TL reader capable of recording the auto-regenerated signal after 6 months is also described, and the results of age determinations on a number of known age samples are presented. (author)

Students’ attitude to the possibility of applying modern information and communication technologies in the educational process in physical education

Directory of Open Access Journals (Sweden)

A.S. Ilnitskaya

2014-04-01

Full Text Available Purpose: to analyze the problem of the formation of students’ attitudes toward physical education classes and the application of information and communication technologies in physical education in higher education institutions. Material: in the survey participated 245 students. Results: it was found that according to students in physical education classes with the use of modern technologies are more efficient than traditional occupations (52% are more emotional nature, help to improve mood (28%, helps to provide students the latest up to date information relative health (26 % contribute to increased power consumption of an organism (8%. Conclusion: the need for the development and application of information and communication technologies and non-traditional forms of physical education to improve the effectiveness of the educational process in physical education in higher education institutions.

Up-Dating: Ratings of Perceived Dating Success Are Better Online than Offline.

Science.gov (United States)

Fullwood, Chris; Attrill-Smith, Alison

2018-01-01

The primary aims of this study were to test whether perceived dating success would differ between offline and online zero-acquaintance dating contexts and to investigate the role that self-esteem might play in these evaluations. Participants were presented with the same photos of targets in either an offline or online dating scenario and rated their chances of dating success along with their perceptions of how attractive they thought the target would consider them. Higher self-esteem individuals believed they would be rated as more attractive. There was an overall perception that, irrespective of self-esteem level, meeting online would lead to better chances of dating success. These findings are considered in relation to an increased ability to more precisely manage impressions and develop an image of the self which would be evaluated more positively online.

Continuing Medical Education

African Journals Online (AJOL)

A review article willintroduce readers to the educational subject matter, along with one-page summarises (in print) of additional articles that may be accessed in full online. We will continue to offer topical and up-to-date CME material. Readers are encouraged to register with samj.org.za to receive future notifications of new ...

Qualitative Assessment of Key Messages about Nutrition and Weight Gain in Pregnancy in Printed Educational Materials in Alberta.

Science.gov (United States)

Forbes, Laura; Baarda, Janis; Mayan, Maria; Bell, Rhonda C

2017-12-01

Printed educational materials are a common source of health information, although their effectiveness in improving women's knowledge or self-care in pregnancy has been questioned. This study describes the information in printed educational materials that address healthy eating during pregnancy and gestational weight gain (GWG) that are currently used in Alberta, Canada. Content of 6 resources was analyzed using a constant comparison qualitative approach. Resources emphasized healthy eating, prenatal supplements, folate supplementation, and healthy weight gain. More resources discussed the importance of "eating enough" than provided guidance on avoiding excessive GWG. Themes identified were: "everything is important" meaning that all healthy behaviours are important, making prioritization difficult; "more is more" emphasized eating more over moderation; "everyone is individual" suggests women seek individualized care through the care provider; and "contradictions" describes differences in content and recommendations within and between resources. New or revised versions of resources should provide congruent information with up-to-date recommendations that are easily prioritized. Care providers should be aware of contradictory information or information that does not align with current recommendations within printed educational materials and be ready to help women address the areas important for her personal behaviour change.

Up to date cross sections library for Thermos and Record codes

International Nuclear Information System (INIS)

Hernandez Lopez, H.

1993-01-01

Reactor cell analysis is the first step in determining reactor core behavior and is required in the reload licensing process. For best results, reactor cell analysis should be carried out with libraries of up to date, accurate cross sections produced with well described methods from standard evaluated nuclear data. At first step in this work were determined the library structure for RECORD and THERMOS and were prepared the cross sections libraries using the NJOY nuclear data processing system and the ENDF-B/IV evaluated nuclear data. These libraries were used by the codes and some samples were perform, the result show some differences against the results obtained using the previous libraries. By other hand the libraries contain various adjustments to correct for deficiencies in nuclear data or analytical methods. These adjustments doesn't have any documentation, although some of them were identified in this work. (Author). 25 refs, 78 figs, 55 tabs

Up-to-date approach to manage keloids and hypertrophic scars: a useful guide.

Science.gov (United States)

Arno, Anna I; Gauglitz, Gerd G; Barret, Juan P; Jeschke, Marc G

2014-11-01

Keloids and hypertrophic scars occur anywhere from 30 to 90% of patients, and are characterized by pathologically excessive dermal fibrosis and aberrant wound healing. Both entities have different clinical and histochemical characteristics, and unfortunately still represent a great challenge for clinicians due to lack of efficacious treatments. Current advances in molecular biology and genetics reveal new preventive and therapeutical options which represent a hope to manage this highly prevalent, chronic and disabling problem, with long-term beneficial outcomes and improvement of quality of life. While we wait for these translational clinical products to be marketed, however, it is imperative to know the basics of the currently existing wide array of strategies to deal with excessive scars: from the classical corticotherapy, to the most recent botulinum toxin and lasers. The main aim of this review paper is to offer a useful up-to-date guideline to prevent and treat keloids and hypertrophic scars. Copyright © 2014 Elsevier Ltd and ISBI. All rights reserved.

Inclusions in bone material as a source of error in radiocarbon dating

International Nuclear Information System (INIS)

Hassan, A.A.; Ortner, D.J.

1977-01-01

Electron probe microanalysis, X-ray diffraction and microscopic examination were conducted on bone material from several archaeological sites in order to identify post-burial inclusions which, if present, may affect radiocarbon dating of bone. Two types of inclusions were identified: (1) precipitates from ground water solutions, and (2) solid intrusion. The first type consists of calcite, pyrite, humates and an unknown material. The second type includes quartz grains, hyphae, rootlets, wood and charcoal. Precipitation of calcite in a macro-molecular level in bone may lead to erroneaous dating of bone apatite if such calcite was not removed completely. A special technique, therefore, must be employed to remove calcite comletely. Hyphae and rootlets also are likely to induce errors in radiocarbon dating of bone collagen. These very fine inclusions require more than hand picking. (author)

Keeping Teachers Up-to-date is essential to reach and maintain a High Quality University Education

Directory of Open Access Journals (Sweden)

Leonor Aguilar-Santelises

2014-12-01

Full Text Available A multidisciplinary group of teachers and scientists from the Faculty for Higher Education (FES Zaragoza from the National Autonomous University of Mexico (UNAM has been working during several years, forwarding and testing strategies for the continuous improvement of biochemistry theoretical and experimental teaching, within the various levels from the chemistry, pharmacy and biology (QFB curricula at our University. To provide our teachers with modern teaching abilities to satisfy current national demands of high-level education is our top priority. Therefore, we offer various activities to promote their continuous scientific and didactic updating. We also encourage self-awareness on the strong need for continuous adaptation and utilization of information and communication technologies (ICT that have become very popular among young generations. Teaching is not an isolated discipline. On the contrary, teaching is intimately related with social and economical circumstances. Teachers and students must be aware of their social environment, studying and applying modern techniques, improving their scientific capabilities, which are all necessary to approach national problems with an accurate utilization of national resources. Research and development have to be linked to the best teaching techniques that stimulate teachers and scientists to grow as educators and experimenters continuously looking for feedback from their students and colleagues. Our scientific meetings and advanced and basic courses on scientific topics and teaching techniques have contributed not only to promote individual teaching and scientific capabilities but also to update the study plans from the QFB curricula at our University.

Socio-political structure of Turkey in general elections since 1980 military intervention up to date (last 23 years)

OpenAIRE

D. Ali Arslan; Mustafa Çağlayandereli

2006-01-01

This study aims to analyze socio-political structure of Turkish society at the basis of the results of Turkish General elections since 1983 up to date. Documentary and historical research techniques will be employed during the study.

Hepsoft - an approach for up to date multi-platform deployment of HEP specific software

International Nuclear Information System (INIS)

Roiser, S

2011-01-01

LHC experiments are depending on a rich palette of software components to build their specific applications. These underlying software components include the ROOT analysis framework, the Geant4 simulation toolkit, Monte Carlo generators, grid middle-ware, graphics libraries, scripting languages, databases, tools, etc. which are provided centrally in up to date versions on multiple platforms (Linux, Mac, Windows). Until recently this set of packages has been tested and released in a tree like structure as a consistent set of versions across operating systems, architectures and compilers for LHC experiments only. Because of the tree like deployment these releases were only usable in connection with a configuration management tool which provided the proper build and run-time environments and was hindering other parties outside LHC from easily using this palette of packages. In a new approach the releases will be grouped in 'flat structure' such that interested parties can start using it without configuration management, retaining all the above mentioned advantages. In addition to an increased usability the software shall also be distributed via system provided package deployment systems (rpm, apt, etc.). The approach of software deployment is following the ideas of providing a wide range of HEP specific software packages and tools in a coherent, up to date and modular way on multiple platforms. The target audience for such software deployments are individual developers or smaller development groups / experiments who don't have the resources to maintain this kind of infrastructure. This new software deployment strategy has already been successfully implemented for groups at CERN.

The Effects of Relationship Education on Adolescent Traditional Gender Role Attitudes and Dating Violence Acceptance

Directory of Open Access Journals (Sweden)

Angela Whittaker

2014-10-01

Full Text Available This study examined change in adolescents’ traditional gender role attitudes and dating violence acceptance following completion of a relationship education program. Using data from a larger study evaluating the effects of relationship education for adolescents, beliefs and attitudes were assessed among a diverse sample of 627 youth. Gender differences in changes from pre- to post-test were also examined. Results of repeated measures MANCOVAs revealed a time X gender interaction effect for change in traditional gender role attitudes following relationship education. A significant decrease in traditional gender role attitudes was found for both boys and girls following relationship education, with a steeper decline in traditional gender role attitudes for boys than girls over time. Although there were no significant changes in dating violence acceptance, change in traditional gender role attitudes was correlated with change in dating violence acceptance, such that moving toward more egalitarian attitudes was associated with a decrease in acceptance of dating aggression/violence. Overall, results suggest that adolescents’ attitudes about gender roles and dating violence are open to change when provided relationship education, and changes in these beliefs are linked. Findings from this study have implications for promoting healthy relationships among youth.

Designing Teaching Materials for Learning Problem Solving in Technology Education

NARCIS (Netherlands)

Doornekamp, B.G.

In the process of designing teaching materials for learning problem solving in technology education, domain-specific design specifications are considered important elements to raise learning outcomes with these materials. Two domain-specific design specifications were drawn up using a four-step

Acquisition of a High Performance Computer Cluster for Materials Research and Education

Science.gov (United States)

2015-04-17

NUMBER 5b. GRANT NUMBER 5a. CONTRACT NUMBER Form Approved OMB NO. 0704-0188 3. DATES COVERED (From - To) - UU UU UU UU 17-04-2015 1-Feb-2014 31-Jan...significantly reduce the time and labour required for materials development. The proposed cluster will also play an important role for education and...the paradigm of materials design based on time-consuming trial-and-error experiments and significantly reduce the time and labour required for

Towards socio-material approaches in simulation-based education: lessons from complexity theory.

Science.gov (United States)

Fenwick, Tara; Dahlgren, Madeleine Abrandt

2015-04-01

Review studies of simulation-based education (SBE) consistently point out that theory-driven research is lacking. The literature to date is dominated by discourses of fidelity and authenticity - creating the 'real' - with a strong focus on the developing of clinical procedural skills. Little of this writing incorporates the theory and research proliferating in professional studies more broadly, which show how professional learning is embodied, relational and situated in social - material relations. A key concern for medical educators concerns how to better prepare students for the unpredictable and dynamic ambiguity of professional practice; this has stimulated the movement towards socio-material theories in education that address precisely this question. Among the various socio-material theories that are informing new developments in professional education, complexity theory has been of particular importance for medical educators interested in updating current practices. This paper outlines key elements of complexity theory, illustrated with examples from empirical study, to argue its particular relevance for improving SBE. Complexity theory can make visible important material dynamics, and their problematic consequences, that are not often noticed in simulated experiences in medical training. It also offers conceptual tools that can be put to practical use. This paper focuses on concepts of emergence, attunement, disturbance and experimentation. These suggest useful new approaches for designing simulated settings and scenarios, and for effective pedagogies before, during and following simulation sessions. Socio-material approaches such as complexity theory are spreading through research and practice in many aspects of professional education across disciplines. Here, we argue for the transformative potential of complexity theory in medical education using simulation as our focus. Complexity tools open questions about the socio-material contradictions inherent in

Of creation of up-to-date system for liquid radwaste management at Ukraine's NPPs. Problem statement

International Nuclear Information System (INIS)

Andronov, O.B.

2015-01-01

The main aspects are addressed of problems in the field of liquid radwaste (LRW) management for Ukrainian NPPs; approaches for its decision, and offers of NNEGC Energoatom SE STC specialists concerning the above issue. Conceptual principle of creation of up-to-date hi-tech complex for LRW management is considered

Up-to-date subject matter of world research in the field of materials for power plants

International Nuclear Information System (INIS)

Kozlowski, R.H.

1998-01-01

New approach to the problem of composition of present-day materials, which are working in high temperatures assumes that their microstructure becomes a subject of analysis-not an object-as it was before. Nowadays many industrial and university laboratories deal with these problems, individually or in the cooperation, in framework of the different types of projects, financed by the international organizations. In the report, research realized over the last 20 years in USA, Europe and japan have been reviewed. This research focused on the working in high temperatures steels as a constructional materials for pipes and other units of the power plants. According to the newest achievement in this domain we could expect that the ferritic and ferro-martensitic alloy steels will become new generation of the high-temperature creep-resisting steels (author)

An Evaluation of Two Dating Violence Prevention Programs on a College Campus.

Science.gov (United States)

Peterson, Kerry; Sharps, Phyllis; Banyard, Victoria; Powers, Ráchael A; Kaukinen, Catherine; Gross, Deborah; Decker, Michele R; Baatz, Carrie; Campbell, Jacquelyn

2016-03-13

Dating violence is a serious and prevalent public health problem that is associated with numerous negative physical and psychological health outcomes, and yet there has been limited evaluation of prevention programs on college campuses. A recent innovation in campus prevention focuses on mobilizing bystanders to take action. To date, bystander programs have mainly been compared with no treatment control groups raising questions about what value is added to dating violence prevention by focusing on bystanders. This study compared a single 90-min bystander education program for dating violence prevention with a traditional awareness education program, as well as with a no education control group. Using a quasi-experimental pre-test/post-test design with follow-up at 2 months, a sample of predominately freshmen college students was randomized to either the bystander (n = 369) or traditional awareness (n = 376) dating violence education program. A non-randomized control group of freshmen students who did not receive any education were also surveyed (n = 224). Students completed measures of attitudes, including rape myth acceptance, bystander efficacy, and intent to help as well as behavioral measures related to bystander action and victimization. Results showed that the bystander education program was more effective at changing attitudes, beliefs, efficacy, intentions, and self-reported behaviors compared with the traditional awareness education program. Both programs were significantly more effective than no education. The findings of this study have important implications for future dating violence prevention educational programming, emphasizing the value of bystander education programs for primary dating violence prevention among college students. © The Author(s) 2016.

Bayesian molecular dating: opening up the black box.

Science.gov (United States)

Bromham, Lindell; Duchêne, Sebastián; Hua, Xia; Ritchie, Andrew M; Duchêne, David A; Ho, Simon Y W

2018-05-01

Molecular dating analyses allow evolutionary timescales to be estimated from genetic data, offering an unprecedented capacity for investigating the evolutionary past of all species. These methods require us to make assumptions about the relationship between genetic change and evolutionary time, often referred to as a 'molecular clock'. Although initially regarded with scepticism, molecular dating has now been adopted in many areas of biology. This broad uptake has been due partly to the development of Bayesian methods that allow complex aspects of molecular evolution, such as variation in rates of change across lineages, to be taken into account. But in order to do this, Bayesian dating methods rely on a range of assumptions about the evolutionary process, which vary in their degree of biological realism and empirical support. These assumptions can have substantial impacts on the estimates produced by molecular dating analyses. The aim of this review is to open the 'black box' of Bayesian molecular dating and have a look at the machinery inside. We explain the components of these dating methods, the important decisions that researchers must make in their analyses, and the factors that need to be considered when interpreting results. We illustrate the effects that the choices of different models and priors can have on the outcome of the analysis, and suggest ways to explore these impacts. We describe some major research directions that may improve the reliability of Bayesian dating. The goal of our review is to help researchers to make informed choices when using Bayesian phylogenetic methods to estimate evolutionary rates and timescales. © 2017 Cambridge Philosophical Society.

Use of physical techniques for dating of archaeological and geological materials in Brazil and Japan

International Nuclear Information System (INIS)

Ikeya, M.; Mascarenhas, S.

1980-01-01

The principle of ESR (Electron Spin Resonance) dating is described briefly. The dating of stalagtites and stalagmites at Caverna do Diabo (Brazil) follows as an example. ESR dating of archaeological materials (shells and bones) at the shell mound of Sambaqui in the Brazilian coast is presented and compared with the results of bone and shell dating in Japan. The use of ESR dating technique to indicate coffee bean oil decomposition (for the quality assessement of Brazilian coffee beans) is also described. (I.C.R.) [pt

From Romance to Rocket Science: Speed Dating in Higher Education

Science.gov (United States)

Muurlink, Olav; Poyatos Matas, Cristina

2011-01-01

This article is the first comprehensive review of speed dating in the tertiary sector. While speed dating has its origins as a networking technique to connect singles, it has only more recently made its way into the academy. Since 2005 universities world-wide have begun to adopt speed dating protocols as a tool for building research culture. An…

Teen magazines as educational texts on dating violence: the $2.99 approach.

Science.gov (United States)

Kettrey, Heather Hensman; Emery, Beth C

2010-11-01

This study analyzed the portrayal of dating violence in teen magazines published in the United States. Such an investigation is important because previous research indicates that dating violence is a serious problem facing adolescents, teen magazines overemphasize the importance of romantic relationships, and teens who read this genre frequently or for education/advice are especially susceptible to its messages. Results indicated that although teen magazines do frame dating violence as a cultural problem, they are much more likely to utilize an individual frame that emphasizes the victim. Results were discussed as they apply to the responsibilities of professionals working with adolescents.

Peer-to-Peer JXTA Architecture for Continuing Mobile Medical Education Incorporated in Rural Public Health Centers

OpenAIRE

Rajasekaran, Rajkumar; Sriman Narayana Iyengar, Nallani Chackravatula

2013-01-01

Objectives: Mobile technology helps to improve continuing medical education; this includes all aspects of public health care as well as keeping one?s knowledge up-to-date. The program of continuing medical and health education is intertwined with mobile health technology, which forms an imperative component of national strategies in health. Continuing mobile medical education (CMME) programs are designed to ensure that all medical and health-care professionals stay up-to-date with the knowled...

Prevalence of psychopathology in children of parents with mental illness and/or addiction: An up to date narrative review

NARCIS (Netherlands)

Leijdesdorff, S.M.J.; Doesum, K.T.M. van; Popma, A.; Klaassen, R.M.C.; Amelsvoort, T.A.M.J. van

2017-01-01

Purpose of review: Children of parents with a mental illness and/or addiction are at high risk for developing a mental illness themselves. Parental mental illness is highly prevalent leading to a serious number of children at high risk. The aim of this review is to give an up-to-date overview of

Dating of oilfield contamination by Natural Occurring Radioactive Materials (NORM) using isotopic ratios

International Nuclear Information System (INIS)

Al-Masri, M. S.; Othman, I.; Aba, A.

2008-05-01

In the present work, the possibility of using radium isotope ratios (226, 224, 228) for dating of NORM contaminated sites in the oilfields due to uncontrolled disposal of produced water into the environmental NORM contaminated soil sample were collected from different locations in Syrian Oilfields and radioactivity analysed. In addition, production water samples were collected and analysed to determine the isotopes ratios of the naturally occurring radioactive materials. The results have shown that the 228 Ra/ 226 Ra can be successfully used to date contaminated soil provided that this ratio is determined in production water. Moreover, the 210 Pb/ 226 Ra activity ratios was used for the first time for dating of contaminated soil where all factors affecting the method application have been evaluated. Furthermore, the obtained results for dating using the three methods were compared with the actual contamination dates provided by the oil companies. (Authors)

Oldest Directly Dated Remains of Sheep in China

Science.gov (United States)

Dodson, John; Dodson, Eoin; Banati, Richard; Li, Xiaoqiang; Atahan, Pia; Hu, Songmei; Middleton, Ryan J.; Zhou, Xinying; Nan, Sun

2014-11-01

The origins of domesticated sheep (Ovis sp.) in China remain unknown. Previous workers have speculated that sheep may have been present in China up to 7000 years ago, however many claims are based on associations with archaeological material rather than independent dates on sheep material. Here we present 7 radiocarbon dates on sheep bone from Inner Mongolia, Ningxia and Shaanxi provinces. DNA analysis on one of the bones confirms it is Ovis sp. The oldest ages are about 4700 to 4400 BCE and are thus the oldest objectively dated Ovis material in eastern Asia. The graphitisised bone collagen had δ13C values indicating some millet was represented in the diet. This probably indicates sheep were in a domestic setting where millet was grown. The younger samples had δ13C values indicating that even more millet was in the diet, and this was likely related to changes in foddering practices

Dating Saharan dust deposits on Lanzarote (Canary Islands) by luminescence dating techniques and their implication for palaeoclimate reconstruction of NW Africa

Science.gov (United States)

von Suchodoletz, H.; Fuchs, M.; ZöLler, L.

2008-02-01

Lava flow dammed valleys (Vegas) on Lanzarote (Canary Islands) represent unique sediment traps, filled with autochthonous volcanic material and allochthonous Saharan dust. These sediments and the intercalated palaeosoil sediments document past environmental change of the last glacial-interglacial cycles, both on Lanzarote and in NW Africa. A reliable chronology must be established to use these sediment archives for palaeoclimate reconstructions. Owing to the lack of organic material and the limiting time range of the 14C-dating method, luminescence dating is the most promising method for these sediments. However, the fluvio-eolian character of these sediments is a major problem for luminescence dating, because these sediments are prone to insufficient resetting of the parent luminescence signal (bleaching) prior to sedimentation. To check for the best age estimates, we compare the bleaching behavior of (1) different grain sizes (coarse- versus fine-grain quartz OSL) and (2) different minerals (fine-grain feldspar IRSL versus fine-grain quartz OSL). The results show that owing to its bleaching characteristics, quartz is the preferable mineral for luminescence dating. On the basis of the fine- and coarse-grain quartz OSL age estimates, a chronostratigraphy up to 100 ka could be established. Beyond this age limit for OSL quartz, the chronostratigraphy could be extended up to 180 ka by correlating the vega sediments with dated marine sediment archives.

Thermoluminescence dating

International Nuclear Information System (INIS)

Price, D.M.

1999-01-01

Thermoluminescence (TL) dating of sediments depends upon the acquisition and long term stable storage of TL energy by crystalline minerals contained within a sedimentary unit. This energy is stored in the form of trapped electrons and quartz sand is the most commonly used mineral employed in the dating process. Prior to the final depositional episode it is necessary that any previously acquired TL is removed by exposure to sunlight. After burial the TL begins to build up again at a rate dependent upon the radiation flux delivered by long-lived isotopes of uranium, thorium and potassium. The presence of rubidium and cosmic radiation generally play a lesser but contributory roll, and the total radiation dose delivered to the TL phosphor is modified by the presence of water. The period since deposition is therefore measured by determining the total amount of stored TL energy, the palaeodose (P), and the rate at which this energy is acquired, the annual radiation dose (ARD). TL dating may be applied to eolian, fluvial, coastal and in some cases, marine sediments. the technique is also successfully applied to volcanic materials and to a certain extent to archeological specimens

Review of the CDC’s “Choose Respect” Dating Violence Prevention Materials

Directory of Open Access Journals (Sweden)

Jodie Hertzog

2007-03-01

Full Text Available An overview of resources developed for the Center for Disease Control’s national “Choose Respect” initiative targeting youth ages 11-14 is provided. The initiative’s goal is to prevent teen dating violence by promoting healthy relationship development. Resources include a community action kit, downloadable video, television and radio advertisements as well as educational posters.

Evaluating the educational content of direct-to-consumer fulfillment materials.

Science.gov (United States)

Chao, Blenda A

2005-03-15

The educational content of direct-to-consumer (DTC) fulfillment materials was evaluated. A list of prescription drug products advertised to consumers via broadcast media from August 1997 through April 20, 2002, was obtained from the Food and Drug Administration (FDA). The prescription products were categorized by disease state on the basis of their FDA-approved indications. Eight disease states were selected for analysis purposes and included acne, allergic rhinitis, depression, diabetes, hypercholesterolemia, migraine, overactive bladder, and osteoporosis. A total of 31 products were advertised directly to consumers for the eight targeted disease states, 26 of which met the inclusion criteria. The educational content of the advertisements for these 26 products was assessed by analyzing the materials' consistency, instructiveness, and consumer orientation. Two of the 26 materials analyzed contained claims that potentially broadened a drug's indication from that listed in the FDA-approved labeling. The majority of materials listed the condition name (92%), symptom information (77%), the drug's mechanism of action (65%), the drug's time to onset of action (54%), and supportive behaviors (62%). Twenty of 24 DTC fulfillment materials (83%) were not written at the reading level of eighth grade or lower. Fifteen of the 26 mailings contained educational diagrams, 52% of which met the criteria for necessity, and a greater percentage met the criteria for suitability (90%), familiarity (86%), overall layout (88%), single concept (86%), and lack of distracting elements (100%). DTC fulfillment materials appear to have more educational content than DTC print advertisements but are still overwhelmingly deficient in meeting the recommended sixth to eighth-grade reading level.

Carbon-14 Bomb-Pulse Dating

Energy Technology Data Exchange (ETDEWEB)

Buchholz, B A

2007-12-16

Atmospheric testing of nuclear weapons during the 1950s and early 1960s doubled the concentration of carbon-14 atmosphere and created a pulse that labeled everything alive in the past 50 years as carbon moved up the food chain. The variation in carbon-14 concentration in time is well-documented and can be used to chronologically date all biological materials since the mid-1950s.

Ecology of Access to Educational Material in Developing World ...

International Development Research Centre (IDRC) Digital Library (Canada)

Ecology of Access to Educational Material in Developing World Universities. The longstanding crisis of the developing world library is coming to an end, but not in the way most observers anticipated. Resource scarcity, limited holdings and poor infrastructure remain the norm. Debates of access to print materials continue to ...

Wasted research when systematic reviews fail to provide a complete and up-to-date evidence synthesis: the example of lung cancer.

Science.gov (United States)

Créquit, Perrine; Trinquart, Ludovic; Yavchitz, Amélie; Ravaud, Philippe

2016-01-20

Multiple treatments are frequently available for a given condition, and clinicians and patients need a comprehensive, up-to-date synthesis of evidence for all competing treatments. We aimed to quantify the waste of research related to the failure of systematic reviews to provide a complete and up-to-date evidence synthesis over time. We performed a series of systematic overviews and networks of randomized trials assessing the gap between evidence covered by systematic reviews and available trials of second-line treatments for advanced non-small cell lung cancer. We searched the Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects, MEDLINE, EMBASE, and other resources sequentially by year from 2009 to March 2, 2015. We sequentially compared the amount of evidence missing from systematic reviews to the randomized evidence available for inclusion each year. We constructed cumulative networks of randomized evidence over time and evaluated the proportion of trials, patients, treatments, and treatment comparisons not covered by systematic reviews on December 31 each year from 2009 to 2015. We identified 77 trials (28,636 patients) assessing 47 treatments with 54 comparisons and 29 systematic reviews (13 published after 2013). From 2009 to 2015, the evidence covered by existing systematic reviews was consistently incomplete: 45 % to 70 % of trials; 30 % to 58 % of patients; 40 % to 66 % of treatments; and 38 % to 71 % of comparisons were missing. In the cumulative networks of randomized evidence, 10 % to 17 % of treatment comparisons were partially covered by systematic reviews and 55 % to 85 % were partially or not covered. We illustrate how systematic reviews of a given condition provide a fragmented, out-of-date panorama of the evidence for all treatments. This waste of research might be reduced by the development of live cumulative network meta-analyses.

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2013-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materials in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs.

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2012-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materials in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs.

Mechanism of Inflammation in Age-Related Macular Degeneration: An Up-to-Date on Genetic Landmarks

Directory of Open Access Journals (Sweden)

Francesco Parmeggiani

2013-01-01

Full Text Available Age-related macular degeneration (AMD is the most common cause of irreversible visual impairment among people over 50 years of age, accounting for up to 50% of all cases of legal blindness in Western countries. Although the aging represents the main determinant of AMD, it must be considered a multifaceted disease caused by interactions among environmental risk factors and genetic backgrounds. Mounting evidence and/or arguments document the crucial role of inflammation and immune-mediated processes in the pathogenesis of AMD. Proinflammatory effects secondary to chronic inflammation (e.g., alternative complement activation and heterogeneous types of oxidative stress (e.g., impaired cholesterol homeostasis can result in degenerative damages at the level of crucial macular structures, that is photoreceptors, retinal pigment epithelium, and Bruch’s membrane. In the most recent years, the association of AMD with genes, directly or indirectly, involved in immunoinflammatory pathways is increasingly becoming an essential core for AMD knowledge. Starting from the key basic-research notions detectable at the root of AMD pathogenesis, the present up-to-date paper reviews the best-known and/or the most attractive genetic findings linked to the mechanisms of inflammation of this complex disease.

Scale-up of nature’s tissue weaving algorithms to engineer advanced functional materials

Science.gov (United States)

Ng, Joanna L.; Knothe, Lillian E.; Whan, Renee M.; Knothe, Ulf; Tate, Melissa L. Knothe

2017-01-01

We are literally the stuff from which our tissue fabrics and their fibers are woven and spun. The arrangement of collagen, elastin and other structural proteins in space and time embodies our tissues and organs with amazing resilience and multifunctional smart properties. For example, the periosteum, a soft tissue sleeve that envelops all nonarticular bony surfaces of the body, comprises an inherently “smart” material that gives hard bones added strength under high impact loads. Yet a paucity of scalable bottom-up approaches stymies the harnessing of smart tissues’ biological, mechanical and organizational detail to create advanced functional materials. Here, a novel approach is established to scale up the multidimensional fiber patterns of natural soft tissue weaves for rapid prototyping of advanced functional materials. First second harmonic generation and two-photon excitation microscopy is used to map the microscopic three-dimensional (3D) alignment, composition and distribution of the collagen and elastin fibers of periosteum, the soft tissue sheath bounding all nonarticular bone surfaces in our bodies. Then, using engineering rendering software to scale up this natural tissue fabric, as well as multidimensional weaving algorithms, macroscopic tissue prototypes are created using a computer-controlled jacquard loom. The capacity to prototype scaled up architectures of natural fabrics provides a new avenue to create advanced functional materials.

Readability evaluation of Internet-based patient education materials related to the anesthesiology field.

Science.gov (United States)

De Oliveira, Gildasio S; Jung, Michael; Mccaffery, Kirsten J; McCarthy, Robert J; Wolf, Michael S

2015-08-01

The main objective of the current investigation was to assess the readability of Internet-based patient education materials related to the field of anesthesiology. We hypothesized that the majority of patient education materials would not be written according to current recommended readability grade level. Online patient education materials describing procedures, risks, and management of anesthesia-related topics were identified using the search engine Google (available at www.google.com) using the terms anesthesia, anesthesiology, anesthesia risks, and anesthesia care. Cross-sectional evaluation. None. Assessments of content readability were performed using validated instruments (Flesch-Kincaid Grade Formulae, the Gunning Frequency of Gobbledygook, the New Dale-Chall Test, the Fry graph, and the Flesch Reading Ease score). Ninety-six Web sites containing Internet patient education materials (IPEMs) were evaluated. The median (interquartile range) readability grade level for all evaluated IPEMs was 13.5 (12.0-14.6). All the evaluated documents were classified at a greater readability level than the current recommended readability grade, P Internet-based patient education materials related to the field of anesthesiology are currently written far above the recommended readability grade level. High complexity of written education materials likely limits access of information to millions of American patients. Redesign of online content of Web sites that provide patient education material regarding anesthesia could be an important step in improving access to information for patients with poor health literacy. Copyright © 2015 Elsevier Inc. All rights reserved.

Energy Education Materials Inventory

Energy Technology Data Exchange (ETDEWEB)

1979-08-01

The two volumes of the Energy Education Materials Inventory (EEMI) comprise an annotated bibliography of widely available energy education materials and reference sources. This systematic listing is designed to provide a source book which will facilitate access to these educational resources and hasten the inclusion of energy-focused learning experiences in kindergarten through grade twelve. EEMI Volume II expands Volume I and contains items that have become available since its completion in May, 1976. The inventory consists of three major parts. A core section entitled Media contains titles and descriptive information on educational materials, categorized according to medium. The other two major sections - Grade Level and Subject - are cross indexes of the items for which citations appear in the Media Section. These contain titles categorized according to grade level and subject and show the page numbers of the full citations. The general subject area covered includes the following: alternative energy sources (wood, fuel from organic wastes, geothermal energy, nuclear power, solar energy, tidal power, wind energy); energy conservation, consumption, and utilization; energy policy and legislation, environmental/social aspects of energy technology; and fossil fuels (coal, natural gas, petroleum). (RWR)

S K Date

Indian Academy of Sciences (India)

Home; Journals; Bulletin of Materials Science. S K Date. Articles written in Bulletin of Materials Science. Volume 23 Issue 2 April 2000 pp 97-101 Magnetic Materials. Comparison of the irreversible thermomagnetic behaviour of some ferro- and ferrimagnetic systems · P S Anil Kumar P A Joy S K Date · More Details Abstract ...

The dual effect of vegetation green-up date and strong wind on the return period of spring dust storms.

Science.gov (United States)

Feng, Jieling; Li, Ning; Zhang, Zhengtao; Chen, Xi

2017-08-15

Vegetation phenology changes have been widely applied in the disaster risk assessments of the spring dust storms, and vegetation green-up date shifts have a strong influence on dust storms. However, the effect of earlier vegetation green-up dates due to climate warming on the evaluation of dust storms return periods remains an important, but poorly understood issue. In this study, we evaluate the spring dust storm return period (February to June) in Inner Mongolia, Northern China, using 165 observations of severe spring dust storm events from 16 weather stations, and regional vegetation green-up dates as an integrated factor from NDVI (Normalized Difference Vegetation Index), covering a period from 1982 to 2007, by building the bivariate Copula model. We found that the joint return period showed better fitting results than without considering the integrated factor when the actual dust storm return period is longer than 2years. Also, for extremely severe dust storm events, the gap between simulation result and actual return period can be narrowed up to 0.4888years by using integrated factor. Furthermore, the risk map based on the return period results shows that the Mandula, Zhurihe, Sunitezuoqi, Narenbaolige stations are identified as high risk areas. In this study area, land surface is extensively covered by grasses and shrubs, vegetation green-up date can play a significant role in restraining spring dust storm outbreaks. Therefore, we suggest that Copula method can become a useful tool for joint return period evaluation and risk analysis of severe dust storms. Copyright © 2017 Elsevier B.V. All rights reserved.

Laparoscopic distal pancreatectomy: Up-to-date and literature review

Science.gov (United States)

Iacobone, Maurizio; Citton, Marilisa; Nitti, Donato

2012-01-01

Pancreatic surgery represents one of the most challenging areas in digestive surgery. In recent years, an increasing number of laparoscopic pancreatic procedures have been performed and laparoscopic distal pancreatectomy (LDP) has gained world-wide acceptance because it does not require anastomosis or other reconstruction. To date, English literature reports more than 300 papers focusing on LDP, but only 6% included more than 30 patients. Literature review confirms that LDP is a feasible and safe procedure in patients with benign or low grade malignancies. Decreased blood loss and morbidity, early recovery and shorter hospital stay may be the main advantages. Several concerns still exist for laparoscopic pancreatic adenocarcinoma excision. The individual surgeon determines the technical conduction of LDP, with or without spleen preservation; currently robotic pancreatic surgery has gained diffusion. Additional researches are necessary to determine the best technique to improve the procedure results. PMID:23082049

A New Multi-Agent Approach to Adaptive E-Education

Science.gov (United States)

Chen, Jing; Cheng, Peng

Improving customer satisfaction degree is important in e-Education. This paper describes a new approach to adaptive e-Education taking into account the full spectrum of Web service techniques and activities. It presents a multi-agents architecture based on artificial psychology techniques, which makes the e-Education process both adaptable and dynamic, and hence up-to-date. Knowledge base techniques are used to support the e-Education process, and artificial psychology techniques to deal with user psychology, which makes the e-Education system more effective and satisfying.

Quality of online pediatric orthopaedic education materials.

Science.gov (United States)

Feghhi, Daniel P; Komlos, Daniel; Agarwal, Nitin; Sabharwal, Sanjeev

2014-12-03

Increased availability of medical information on the Internet empowers patients to look up answers to questions about their medical conditions. However, the quality of medical information available on the Internet is highly variable. Various tools for the assessment of online medical information have been developed and used to assess the quality and accuracy of medical web sites. In this study we used the LIDA tool (Minervation) to assess the quality of pediatric patient information on the AAOS (American Academy of Orthopaedic Surgeons) and POSNA (Pediatric Orthopaedic Society of North America) web sites. The accessibility, usability, and reliability of online medical information in the "Children" section of the AAOS web site and on the POSNA web site were assessed with use of the LIDA tool. Flesch-Kincaid (FK) and Flesch Reading Ease (FRE) values were also calculated to assess the readability of the pediatric education material. Patient education materials on each web site scored in the moderate range in assessments of accessibility, usability, and reliability. FK and FRE values indicated that the readability of each web site remained at a somewhat higher (more difficult) level than the recommended benchmark. The quality and readability of online information for children on the AAOS and POSNA web sites are acceptable but can be improved further. The quality of online pediatric orthopaedic patient education materials may affect communication with patients and their caregivers, and further investigation and modification of quality are needed. Copyright © 2014 by The Journal of Bone and Joint Surgery, Incorporated.

The particularities of senior pupils’ professional self-determination at up-to-date world

Directory of Open Access Journals (Sweden)

Revenko G.О.

2015-09-01

Full Text Available The aim of the work was assaying motivational aspects of senior pupils’ career guidance. Today the emotional focus of young people is pragmatic: material and personal well-being, the ability to survive in modern society, profitable employment, meeting well-to-do life partner, "having good sponsors," " rich patron", "avoiding army service". Civil loadings such as service of the country and society aren’t appreciated. The lack of sufficiently deep professional orientation of graduates does not preclude its formation during pariod of training at higher educational institutions. Therefore, the task of the school (family and community consists in choosing of profession which is logical consequence of gradually increasing professional orientation. To solve these problems, first of all, it is necessary to conduct systematic vocational guidance at schools, starting to gradually introduce children into the world of professions beginning with middle classes.

LinkedUp: Linking Open Data for Education

NARCIS (Netherlands)

Guy, Marieke; d'Aquin, Mathieu; Dietze, Stefan; Drachsler, Hendrik; Herder, Eelco; Parodi, Elisabetta

2015-01-01

In the past, discussions around Open Education have tended to focus on content and primarily Open Educational Resources (OER), freely accessible, openly licensed resources that are used for teaching, learning, assessment and research purposes. However Open Education is a complex beast made up of

Sex Education Materials.

Science.gov (United States)

Singer-Magdoff, Laura

1969-01-01

After briefly discussing the philosophy of sex education and appraising generally the nature of the instructional methods and materials currently in use in the schools, the author provides brief but incisive reviews of a number of films, filmstrips, and other instructional materials dealing with sex. The reviews are continued in the succeeding…

Developing a Material-Dialogic Approach to Pedagogy to Guide Science Teacher Education

Science.gov (United States)

Hetherington, Lindsay; Wegerif, Rupert

2018-01-01

Dialogic pedagogy is being promoted in science teacher education but the literature on dialogic pedagogy tends to focus on explicit voices, and so runs the risk of overlooking the important role that material objects often play in science education. In this paper we use the findings of a teacher survey and classroom case study to argue that there…

Developing workshop module of realistic mathematics education: Follow-up workshop

Science.gov (United States)

Palupi, E. L. W.; Khabibah, S.

2018-01-01

Realistic Mathematics Education (RME) is a learning approach which fits the aim of the curriculum. The success of RME in teaching mathematics concepts, triggering students’ interest in mathematics and teaching high order thinking skills to the students will make teachers start to learn RME. Hence, RME workshop is often offered and done. This study applied development model proposed by Plomp. Based on the study by RME team, there are three kinds of RME workshop: start-up workshop, follow-up workshop, and quality boost. However, there is no standardized or validated module which is used in that workshops. This study aims to develop a module of RME follow-up workshop which is valid and can be used. Plopm’s developmental model includes materials analysis, design, realization, implementation, and evaluation. Based on the validation, the developed module is valid. While field test shows that the module can be used effectively.

Feasibility Study for the Development of Plutonium Reference Materials for Age Dating in Nuclear Forensics

International Nuclear Information System (INIS)

Sturm, M.; Richter, S.; Aregbe, Y.; Wellum, R.; Altzitzoglou, T.; Verbruggen, A.; Mayer, K.; Prohaska, T.

2010-01-01

Isotopic reference materials certified for the age of nuclear material (uranium, plutonium) are needed in the fields of nuclear forensics and environmental measurements. Therefore a feasibility study for the development of plutonium reference materials for age dating has been started recently at the Institute for Reference Materials and Measurements (EC-JRC-IRMM). The ''age'' of the material is defined as the time that has passed since the last chemical separation of the mother and daughter isotopes (e.g. 241 Pu and 241 Am). Assuming that the separation has been complete and all the daughter isotopes have been removed from the original material during this last separation, the age of the material can be determined by measuring the ratio of daughter and mother radio-nuclides, e.g. 241 Am/ 241 Pu. At a given time after the last separation and depending on the half lives of the radio-nuclides involved, a certain amount of the daughter radionuclide(s) will be present. For the determination of the unknown age of a material different ''clocks'' can be used; ''clocks'' are pairs of mother and daughter radio-nuclides, such as 241 Am/ 241 Pu, 238 Pu/ 234 U, 239 Pu/ 235 U, 240 Pu/ 236 U, and possibly 242 Pu/ 238 U. For the age estimation of a real sample, such as material seized in nuclear forensics investigations or dust samples in environmental measurements, it is advisable to use more than one clock in order to ensure the reliability of the results and to exclude the possibility that the sample under question is a mixture of two or more materials. Consequently, a future reference material certified for separation date should ideally be certified for more than one ''clock'' or several reference materials for different ''clocks'' should be developed. The first step of this study is to verify the known separation dates of different plutonium materials of different ages and isotopic compositions by measuring the mother ( 238 Pu, 239 Pu, 240 Pu, 241 Pu, 242 Pu) and daughter

Rolled-up nanotechnology: 3D photonic materials by design

International Nuclear Information System (INIS)

Böttner, Stefan; Jorgensen, Matthew R.; Schmidt, Oliver G.

2016-01-01

Rolled-up nanotechnology involves the deposition of strained material layers for subsequent release and relaxation into functional structures with applications spanning several disciplines. Originally developed for use with semiconductor materials, over the last decade the processes involved in rolled-up nanotechnology have been applied across a wide palette of materials resulting in applications (among others) in micro robotics, energy storage, electronics, and photonics. Here we highlight the key advancements and future directions in rolled-up photonics, focusing on the diverse demonstrations of rolled-up three-dimensional microresonators which enable integrated sensing, micro-lasing, and out-of-plane routing of light.

Opening up education - some pedagogical considerations

DEFF Research Database (Denmark)

Bang, Jørgen; Dalsgaard, Christian; Kjær, Arne

2016-01-01

would we need universities? Libraries could do the job!” In order to open up education, we need to develop a pedagogical framework for knowledge building to supplement the tradition for knowledge acquisition in higher education. In this article we present our strategic considerations for organising......In the “Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions” from September 25, 2013 the Commission advocated strongly to ‘Opening up Education’ through ‘Innovative teaching and learning for all...... through new Technologies and Open Educational Resources’. We strongly support this vision for the future and aim at realising it within a Danish context with a population of five million. However, we also retain a certain scepticism and remember the saying of David Wiley: “If content is all we need, why...

MIND--a five-state regional approach to continuing dental education.

Science.gov (United States)

Watkins, F

1975-08-01

MIND has finished two years of operation as a regional center for continuing dental education. The responses from viewing cards, and the number of credit hours given, indicate that approximately 20% of the potential audience participated in the course offerings. Previous experience from a two-year study in South Dakota has shown that there are three major factors that are essential for effective use of television as a dissemination medium. These are as follows: 1) the program should establish effective use of the communication system to maintain an audience; 2) the quality of thr programming material that is televised must be high; 3) the program should be televised on a regular basis to develop viewer habits or expectations. With a potential audience of 11,000 persons, MIND has had to depend heavily on a bulk-rate mailing system to communicate with members of the dental profession. This has caused problems such as reminders not being received on time, or being lost in the mail, or not being read, so that the individual is unaware that the courses are being telecast. Another problem of mailing system is maintaining an up-to-date list of addresses. The names and addresses of the dental assistants are impossible to keep up to date. We use the lists of licensed dentists and dental hygienists issued each July and a list of the certified dental assistants, which, of course, does not include all the dental assistants in our five-state area. A system providing more direct contact with the individual needs to be developed. Quality of televised courses is determined by the clinician's style of presentation as well as by the content and organization of the course material. The selection of dental information aimed toward the dentist in general practice results in loss of some members of the viewing audience, particularly specialists and generalpractitioners who have confined their practice to a particular area of dentistry. Quality is also judged by the technical aspects

Evaluation of an intervention to change attitudes toward date rape.

Science.gov (United States)

Lanier, C A; Elliott, M N; Martin, D W; Kapadia, A

1998-01-01

The prevalence of date rape among college students is a major concern. Although much research has been done on risk factors for date rape, few researchers have specifically described interventions for the various stages of developing a date-rape prevention program. Previous programs have often relied on educational videos that feature a "typical" date-rape scenario, a format that some researchers suggest may have a negative effect on the way people engage in aggressive sexual behavior. A less violent theatrical production based on social learning theory and risk-factor reduction that resulted in a significant improvement in attitudes related to date rape among both male and female students at an elite Texas university is described.

Using evidence-integrated e-learning to enhance case management continuing education for psychiatric nurses: a randomised controlled trial with follow-up.

Science.gov (United States)

Liu, Wen-I; Rong, Jiin-Ru; Liu, Chieh-Yu

2014-11-01

E-learning is a flexible strategy to improve nurses' knowledge of case management, but there are methodological limitations in previous research into the effectiveness of such programs. To describe the development and effectiveness of an evidence-integrated e-learning program in case management continuing education for Taiwanese psychiatric nurses. Multiple methods were adopted to develop the program and a randomised controlled trial with repeated measures was employed to evaluate it. The e-learning program was developed in four stages: (1) systematic review of literature; (2) needs assessment through a national survey and focus group; (3) development of learning materials; and (4) pilot test. Following program development, psychiatric nurses were recruited and randomly allocated into an experimental or comparison group. The experimental group participated in an e-learning continuing education program. The case management knowledge index with sufficient reliability and validity and a satisfaction survey were used to determine the outcomes. A generalised estimating equation was used to assess the difference between the 2 groups before, after, and at 3 months follow-up. The learning material comprised 5 simulated learning modules, self-assessment questions, learning cases, sharing experiences, and learning resources. A total of 200 participants completed the 3 measurements. Knowledge scores in the experimental group significantly exceeded those in the comparison group after the program and at the 3-month follow-up. Participants reported positive learning perceptions. The program provides an evidence-based educational resource for nursing continuing education in case management. Copyright © 2014 Elsevier Ltd. All rights reserved.

CREATING EDUCATIONAL MATERIAL TO HIGH SCHOOL EDUCATION WITH COMIC BOOKS: THE VACCINA´S HISTORY.

Directory of Open Access Journals (Sweden)

A. Corrêa

2008-05-01

Full Text Available The Comic book "The Vaccine’s History" is part of a project that creates educational material intended to improve high school education, and is being developed for approximately ten years at the Bioenergetics Laboratory under Prof. Leopoldo de Meis supervision. The project's objective is joining art and science language to create more interesting and playful science education diffusion material for high school students and the general public, working as an entertainment or as an auxiliary tool for teachers in their classrooms. The book’s subject is the history of immunology, from primitive man until present times, using comic book language. An extensive research was necessary in the elaboration of this present work to produce a book that is as true to facts as possible and, at the same time, develop an accessible language to general public. Collaboration of diverse scientists from the Immunology research field made possible an accurate use of academic information, translating this knowledge to students and general pub lic about many topics of discovery and production of vaccines. All products of this project were well received by school teachers all over the country (Brazil, according to data obtained with letters and comments, and the number of requested materials of  the previous works developed by this research group.

Gaming Against Violence: A Grassroots Approach to Teen Dating Violence.

Science.gov (United States)

Crecente, Drew

2014-08-01

Teen dating violence is a pervasive problem that affects millions of adolescents worldwide. Although there have been various approaches to addressing this problem, using videogames had not been employed before 2008, when Jennifer Ann's Group, an Atlanta, GA-based nonprofit organization, created an annual competition. The Life.Love. Game Design Challenge rewards game developers for creating videogames about teen dating violence without using any violence in the games themselves. The resulting videogames have increased awareness about teen dating violence and provided educational information to assist adolescents, parents, and teachers in identifying abusive relationships.

The application of isotopic dating methods for prospection and exploration of nuclear raw material

International Nuclear Information System (INIS)

Komlev, L.V.; Anderson, E.B.

1977-01-01

Among the geological and geochemical methods for prospecting and searching the nuclear raw material, the isotope-dating methods determine the most important search criterion - the time of the ore-forming. The elaboration and use of these methods in uranium-ore regions reveal a series of geochemical epochs of uranium and thorium accumulation connected naturally with the history of geological evolution of the earth crust. The isotope-dating methods enable with confidence to establish the stages of tectono-magmatic activity resulting in the redistribution and the local concentration of uranium. The wide use of isotopic methods is a necessary condition for reasonable trends of the modern geological exploration [ru

Ongoing Activities to Facilitate Access to Supplementary Materials for Cartographic Education.

Science.gov (United States)

Anderson, Paul S.

A wealth of unpublished or unstructured educational materials for all aspects of cartographic instruction are widely dispersed and unnecessarily difficult to obtain. The Cartography Assistance Brochures Project of the Cartography Specialty Group of the Association of American Geographers (AAG), the North American Cartographic Information Society,…

A comparative analysis of neurosurgical online education materials to assess patient comprehension.

Science.gov (United States)

Agarwal, Nitin; Chaudhari, Amit; Hansberry, David R; Tomei, Krystal L; Prestigiacomo, Charles J

2013-10-01

Americans have increasingly utilized the internet as a first-line resource for a variety of information, including healthcare-oriented materials. Therefore, these online resources should be written at a level the average American can understand. Patient education resources specifically written for and available to the public were downloaded from the American Association of Neurological Surgeons website and assessed for their level of readability using the Flesch Reading Ease, Flesch-Kincaid Grade Level, Simple Measure of Gobbledygook Grading, Coleman-Liau Index, and Gunning-Fog Index. A total of 71 subsections from different neurosurgical specialties were reviewed, including Cerebrovascular, Spine and Peripheral Nerves, Neurotrauma and Critical Care, Pain, Pediatric, Stereotactic and Functional, and Tumor material. All neurosurgical subspecialty education material provided on the American Association of Neurological Surgeons website was uniformly written at a level that was too high, as assessed by all modalities. In order to reach a larger patient population, patient education materials on the American Association of Neurological Surgeons website should be revised with the goal of simplifying readability. Copyright © 2013 Elsevier Ltd. All rights reserved.

How AMS dating changed my life

International Nuclear Information System (INIS)

Spriggs, M.

2001-01-01

Accelerator mass spectrometry (AMS) radiocarbon dating was developed in the late 1970s. Remembering back to a time before AMS dating was available to archaeologists is a bit like trying to remember how we ever survived without desktop computers, email or automatic teller machines. My own particular interest in AMS dating was an inevitable offshoot from my long-established interest in chronometric hygiene, or 'getting the dates right'. In this paper I attempt to illustrate that accurate dating matters, by discussing some examples of AMS dating projects with which I have been involved over the last six years or so. In relation to these projects, AMS has given us the ability to date sites which we could not before. It has enabled us to provide more detailed stratigraphies when datable materials are rare. It has allowed us to date materials we could not date before, such as rock art pigments. It has been able to provide indications of the degree of site disturbance in the absence of other obvious forms of evidence. And it has allowed us to assess claims for the antiquity of particular material cultural types and faunal introductions. (author). 41 refs

Readability assessment of online urology patient education materials.

Science.gov (United States)

Colaco, Marc; Svider, Peter F; Agarwal, Nitin; Eloy, Jean Anderson; Jackson, Imani M

2013-03-01

The National Institutes of Health, American Medical Association, and United States Department of Health and Human Services recommend that patient education materials be written at a fourth to sixth grade reading level to facilitate comprehension. We examined and compared the readability and difficulty of online patient education materials from the American Urological Association and academic urology departments in the Northeastern United States. We assessed the online patient education materials for difficulty level with 10 commonly used readability assessment tools, including the Flesch Reading Ease Score, Flesch-Kincaid Grade Level, Simple Measure of Gobbledygook, Gunning Frequency of Gobbledygook, New Dale-Chall Test, Coleman-Liau index, New Fog Count, Raygor Readability Estimate, FORCAST test and Fry score. Most patient education materials on the websites of these programs were written at or above the eleventh grade reading level. Urological online patient education materials are written above the recommended reading level. They may need to be simplified to facilitate better patient understanding of urological topics. Copyright © 2013 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.

Chernobyl fallout in Greece and its effects on the dating of archaeological materials

Energy Technology Data Exchange (ETDEWEB)

Liritzis, Y

1987-10-15

The effects of the fallout from the nuclear reactor accident at Chernobyl have been monitored at various sites in Greece. Here we present the first estimates of gamma dose rates, an essential parameter in the dating of archaeological materials by thermoluminescence (TL) and ESR methods. The dose rates are derived from the long-lived radionuclides of /sup 137/Cs, /sup 134/Cs, /sup 106/Ru and /sup 144/Ce (with t/sub 1/2/ greater than or equal to 1 yr). The present dose rates vary between 30 and 60 mrad/yr, but maximum values of around 811 mrad/yr have also been recorded, for ground-surface exposures. These dose rate values must be regarded as very significant to TL and ESR dating of samples from now on and a correction factor should be applied.

The Institutionalization of Photojournalism Education: Bringing the Blue-Apron Ghetto to American Schools of Journalism

Science.gov (United States)

Paddock, Stanton M.

2017-01-01

As journalism educators wrestle to keep programs up-to-date in an evolving news landscape, there is value in understanding how education in an early form of multimedia journalism--photography--came to be. Little attention has been paid to the intersection of journalism education and photojournalism. This subject furnishes a unique perspective on…

Technical Education Outreach in Materials Science and Technology Based on NASA's Materials Research

Science.gov (United States)

Jacobs, James A.

2003-01-01

The grant NAG-1 -2125, Technical Education Outreach in Materials Science and Technology, based on NASA s Materials Research, involves collaborative effort among the National Aeronautics and Space Administration s Langley Research Center (NASA-LaRC), Norfolk State University (NSU), national research centers, private industry, technical societies, colleges and universities. The collaboration aims to strengthen math, science and technology education by providing outreach related to materials science and technology (MST). The goal of the project is to transfer new developments from LaRC s Center for Excellence for Structures and Materials and other NASA materials research into technical education across the nation to provide educational outreach and strengthen technical education. To achieve this goal we are employing two main strategies: 1) development of the gateway website and 2) using the National Educators Workshop: Update in Engineering Materials, Science and Technology (NEW:Updates). We have also participated in a number of national projects, presented talks at technical meetings and published articles aimed at improving k-12 technical education. Through the three years of this project the NSU team developed the successful MST-Online site and continued to upgrade and update it as our limited resources permitted. Three annual NEW:Updates conducted from 2000 though 2002 overcame the challenges presented first by the September 11,2001 terrorist attacks and the slow U.S. economy and still managed to conduct very effective workshops and expand our outreach efforts. Plans began on NEW:Update 2003 to be hosted by NASA Langley as a part of the celebration of the Centennial of Controlled Flight.

Up-to-date review on food irradiation

International Nuclear Information System (INIS)

Ehlermann, D.A.E.; Gruenewald, T.

1984-01-01

Public interest was focussed on food irradiation in the Federal Republic of Germany after petitions for the treatment of spices had been filed and after the Federal Government's attitude concerning radiation processing of food has been discussed in the Parliament. The review discusses potential and limitations of the method and presents literature references as examples for the relevant applications rather than listing all available references. Electron-, gamma-, Roentgen- and bremsstrahlung-rays are used to obtain desinfestation, shelf-life extension, eradication of pathogene microorganisms, and product improvement. The relation between dose and effected radiochemical changes on the one hand and estimation of the wholesomeness of radiation processed food on the other hand, is discussed. 'Codex Alimentarius', a world-wide body for the standardization of food regulations, has recommended the general use of food irradiation up to a maximum dose limit of 10 kGy which covers the most promising applications. Under the premises of the European Community harmonization of food law is indispensable which means that some clearances in several countries have to be accepted by all countries in the Community. There is no need, based on scientific considerations, to label radiation processed foods. However, with regard to the growing environmental concern of the consumer, labelling of radiation processed products is recommended. For practical reasons only 'first generation' products should be labeled. (orig.) [de

Up-to-date review on food irradiation

Energy Technology Data Exchange (ETDEWEB)

Ehlermann, D A.E.; Gruenewald, T

1984-01-01

Public interest was focussed on food irradiation in the Federal Republic of Germany after petitions for the treatment of spices had been filed and after the Federal Government's attitude concerning radiation processing of food has been discussed in the Parliament. The review discusses potential and limitations of the method and presents literature references as examples for the relevant applications rather than listing all available references. Electron-, gamma-, Roentgen- and bremsstrahlung-rays are used to obtain desinfestation, shelf-life extension, eradication of pathogene microorganisms, and product improvement. The relation between dose and effected radiochemical changes on the one hand and estimation of the wholesomeness of radiation processed food on the other hand, is discussed. 'Codex Alimentarius', a world-wide body for the standardization of food regulations, has recommended the general use of food irradiation up to a maximum dose limit of 10 kGy which covers the most promising applications. Under the premises of the European Community harmonization of food law is indispensable which means that some clearances in several countries have to be accepted by all countries in the Community. There is no need, based on scientific considerations, to label radiation processed foods. However, with regard to the growing environmental concern of the consumer, labelling of radiation processed products is recommended. For practical reasons only 'first generation' products should be labeled.

ESR dating: is it still an 'experimental' technique?

International Nuclear Information System (INIS)

Skinner, A.R.

2000-01-01

Nearly 25 years ago, Motoji Ikeya demonstrated the potential of ESR dating. From a single substance (stalagmitic carbonate) and a single site (Akiyoshi Cavern), the field has grown to include materials from all over the world and time periods from a few thousand years ago to several million years ago. A vigorous program of instrumentation development has increased the precision of measurements as well as opening up new ways of collecting and interpreting spectra. Yet there are still references to ESR dating as an 'experimental' technique, one which cannot be trusted to produce dates that are accurate or precise. This paper discusses areas for which this is true and suggests what should be done to convince skeptics. Other areas for which the evidence suggests that ESR is at least as reliable as 'standard' methods will also be covered

Residents and Medical Students Correctly Answer Clinical Questions More Often with Google and UpToDate than With PubMed or Ovid MEDLINE. A Review of: Thiele, R. H., Poiro, N. C., Scalzo, D. C., & Nemergut, E. C. (2010. Speed, accuracy, and confidence in Google, Ovid, PubMed, and UpToDate: Results of a randomised trial. Postgraduate Medical Journal, 86(1018, 459-465. doi:10.1136/pgmj.2010.098053

Directory of Open Access Journals (Sweden)

Theresa Arndt

2011-06-01

Full Text Available Objective – To determine which search tool (Google, UpToDate, PubMed or Ovid-MEDLINE produces more accurate answers for residents, medical students, and attending physicians searching on clinical questions in anesthesiology and critical care. Searcher confidence in the answers and speed with which answers were found were also examined.Design – Randomized study without a control group.Setting – Large university medical center.Subjects –Subjects included 15 fourth year medical students (third and fourth year, 35 residents, and 4 attending physicians volunteered and completed the study. One additional attending withdrew halfway through the study. The authors were unsuccessful in recruiting an equal number of subjects from each group.Methods – A set of eight anesthesia and critical care questions was developed, based on their commonality and importance in clinical practice and their answerability. Four search tools were employed: Google, UpToDate, PubMed, and Ovid MEDLINE. In part I, subjects were given a random set of four of the questions to answer with the search tool(s of their choice, but could use only one search tool per question. In part II, several weeks later, the same subjects were randomly assigned a search tool with which to answer all 8 questions. The authors state that “for data analysis, PubMed was arbitrarily chosen to be the “reference standard.”” Statistical analysis was used to identify significant differences between PubMed and the other search tools.Main Results – Part I: Subjects choosing a search tool were more likely to find a correct answer with Google or UpToDate. There were no statistically significant differences in confidence with answers between any of the search tools and PubMed.Part II: Though subjects were assigned a search tool, some questions were repeated from part I. For repeated questions, Ovid users (compared to PubMed users were significantly less likely to find the correct answer for

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2009-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materals in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs.

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2008-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materals in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs

Luminescence dating

International Nuclear Information System (INIS)

Rieser, U.

2009-01-01

The luminescence techniques have evolved over the last 40 years to a powerful dating instrument in archaeology and geoscience. Depending on how the luminescence is stimulated, one distinguishes the phenomena of thermoluminescence (TL), optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL). Each of these phenomena has its specific potential for dating various archaeological materals in the time range from medieval back to palaeolithic periods, or, speaking in geological terms, for dating of Holocene and late Pleistocene objects. The OSL and IRSL techniques are sometimes treated together as 'optical dating'. The luminescence techniques differ from other major dating techniques, such as 14 C, essentially by their applicability to inorganic materials, their wide age-range from about 100 years to more than 100,000 years and the kind of datable events which are the last exposure to heat or to light. (author). 10 refs., 3 figs

77 FR 1472 - Submission of Data by State Educational Agencies; Submission Dates for State Revenue and...

Science.gov (United States)

2012-01-10

..., Washington, DC 20233-6800. SEAs may submit data via the World Wide Web (``Web'') using the interactive survey form at: http://surveys.nces.ed.gov/ccdnpefs . The Web form includes a digital confirmation page where... Education Sciences, Department of Education. ACTION: Notice. SUMMARY: The Secretary announces dates for the...

Keeping Up-to-Date

Directory of Open Access Journals (Sweden)

Norman L Jones

2000-01-01

Full Text Available As a senior (read older practising respirologist, I have come to appreciate my position as editor, which keeps me current with present practice standards. Everyone talks about the volume and flow of new knowledge, and not a week goes by in which I feel that I know enough to treat my patients optimally. This is particularly the case when it comes to antibiotic usage: the number of antibiotics and the confident way that junior colleagues bandy them about leaves me distinctly depressed because most of the names mean little to me; even the families and generations of antibiotics seem beyond my grasp. That is why I welcomed the request from Dr Lionel Mandell to publish a summary statement on the use of antibiotics in community-acquired pneumonia (CAP, which appears on pages 371-382 of the current issue of the Canadian Respiratory Journal.

Skin Cancer Education Materials: Selected Annotations.

Science.gov (United States)

National Cancer Inst. (NIH), Bethesda, MD.

This annotated bibliography presents 85 entries on a variety of approaches to cancer education. The entries are grouped under three broad headings, two of which contain smaller sub-divisions. The first heading, Public Education, contains prevention and general information, and non-print materials. The second heading, Professional Education,…

Impact of up-to-date evaluated nuclear data files on the Monte-Carlo analysis results of metallic fueled BFS critical assemblies

International Nuclear Information System (INIS)

Yoo, Jaewoon; Kim, Do-Heon; Kim, Sang-Ji; Kim, Yeong-Il

2009-01-01

Three metallic fueled BFS critical assemblies, BFS-73-1, BFS-75-1, and BFS-55-1 were analyzed by using the Monte-Carlo analysis code MCNP4C with five different evaluated data files, ENDF/B-VII.0, JEFF-3.1, JENDL-3.3, JENDL-AC and ENDF/B-VI.6. The impacts of microscopic cross sections in the up-to-date evaluated nuclear data files were clarified by the analyses. The update of Zr cross section leads to the calculated k-effective lower than that of ENDF/B-VI.6. The revision of U-238 inelastic scattering cross section makes large difference in the predicted k-effectives between the libraries, which depends on the amount of the contribution of the inelastic cross sections change and the compensation of other reaction types. The results of the spectral indices and reaction rate ratios shows the improvement of the up-to-date evaluated nuclear data files for the U-238, Np-237, Pu-240 fission reactions, however, there are still need of further improvement for other minor actinide cross sections. The heterogeneity effects involved on the k-effective and relative fission rate distribution were evaluated in this study, which can be used as the correction factor for constructing the homogeneous benchmark configuration while keeping the consistency with the actual critical experiment. (author)

Tc Generator Development: Up-to-Date Tc Recovery Technologies for Increasing the Effectiveness of Mo Utilisation

Directory of Open Access Journals (Sweden)

Van So Le

2014-01-01

Full Text Available A review on the Mo sources available today and on the Tc generators developed up to date for increasing the effectiveness of Mo utilisation is performed in the format of detailed description of the features and technical performance of the technological groups of the Mo production and Tc recovery. The latest results of the endeavour in this field are also surveyed in regard of the technical solution for overcoming the shortage of Mo supply. The technological topics are grouped and discussed in a way to reflect the similarity in the technological process of each group. The following groups are included in this review which are high specific activity Mo: the current issues of production, the efforts of more effective utilisation, and the high specific activity Mo-based Tc generator and Tc concentration units; low specific activity Mo: the Mo production based on neutron capture and accelerators and the direct production of Tc and the methods of increasing the specific activity of Mo using Szilard-Chalmers reaction and high electric power isotopic separator; up-to-date technologies of Tc recovery from low specific activity Mo: the solvent extraction-based Tc generator, the sublimation methods for Mo/Tc separation, the electrochemical method for Tc recovery, and the column chromatographic methods for Tc recovery. Besides the traditional Tc-generator systems, the integrated Tc generator systems (Tc generator column combined with postelution purification/concentration unit are discussed with the format of process diagram and picture of real generator systems. These systems are the technetium selective sorbent column-based generators, the high Mo-loading capacity column-based integrated Tc generator systems which include the saline-eluted generator systems, and the nonsaline aqueous and organic solvent eluent-eluted generator systems using high Mo-loading capacity molybdategel and recently developed sorbent columns. Tc concentration methods used in the

Preparation and certification of Re-Os dating reference materials: Molybdenites HLP and JDC

Science.gov (United States)

Du, A.; Wu, S.; Sun, D.; Wang, Shaoming; Qu, W.; Markey, R.; Stain, H.; Morgan, J.; Malinovskiy, D.

2004-01-01

Two Re-Os dating reference material molybdenites were prepared. Molybdenite JDC and molybdenite HLP are from a carbonate vein-type molybdenum-(lead)- uranium deposit in the Jinduicheng-Huanglongpu area of Shaanxi province, China. The samples proved to be homogeneous, based on the coefficient of variation of analytical results and an analysis of variance test. The sampling weight was 0.1 g for JDC and 0.025 g for HLP. An isotope dilution method was used for the determination of Re and Os. Sample decomposition and preconcentration of Re and Os prior to measurement were accomplished using a variety of methods: acid digestion, alkali fusion, ion exchange and solvent extraction. Negative thermal ionisation mass spectrometry and inductively coupled plasma-mass spectrometry were used for the determination of Re and 187Os concentration and isotope ratios. The certified values include the contents of Re and Os and the model ages. For HLP, the Re content was 283.8 ?? 6.2 ??g g-1, 187Os was 659 ?? 14 ng g-1 and the Re-Os model age was 221.4 ?? 5.6 Ma. For JDC, the Re content was 17.39 ?? 0.32 ng g-1, 187Os was 25.46 ?? 0.60 ng g-1 and the Re-Os model age was 139.6 ?? 3.8 Ma. Uncertainties for both certified reference materials are stated at the 95% level of confidence. Three laboratories (from three countries: P.R. China, USA, Sweden) joined in the certification programme. These certified reference materials are primarily useful for Re-Os dating of molybdenite, sulfides, black shale, etc.

Control of nuclear material hold-up: The key factors for design and operation of MOX fuel fabrication plants in Europe

International Nuclear Information System (INIS)

Beaman, M.; Beckers, J.; Boella, M.

2001-01-01

Full text: Some protagonists of the nuclear industry suggest that MOX fuel fabrication plants are awash with nuclear materials which cannot be adequately safeguarded and that materials 'stuck in the plant' could conceal clandestine diversion of plutonium. In Europe the real situation is quite different: nuclear operators have gone to considerable efforts to deploy effective systems for safety, security, quality and nuclear materials control and accountancy which provide detailed information. The safeguards authorities use this information as part of the safeguards measures enabling them to give safeguards assurances for MOX fuel fabrication plants. This paper focuses on the issue of hold-up: definition of the hold-up and of the so-called 'hidden inventory'; measures implemented by the plant operators, from design to day to day operations, for minimising hold-up and 'hidden inventory'; plant operators' actions to manage the hold-up during production activities but also at PIT/PIV time; monitoring and management of the 'hidden inventory'; measures implemented by the safeguards authorities and inspectorate for verification and control of both hold-up and 'hidden inventory'. The examples of the different plant specific experiences related in this paper reveal the extensive experience gained in european MOX fuel fabrication plants by the plant operators and the safeguards authorities for the minimising and the control of both hold-up and 'hidden inventory'. MOX fuel has been fabricated in Europe, with an actual combined capacity of 2501. HM/year subject, without any discrimination, to EURATOM Safeguards, for more than 30 years and the total output is, to date, some 1000 t.HM. (author)

Empowering children with special educational needs to speak up: experiences of inclusive physical education.

Science.gov (United States)

Coates, Janine; Vickerman, Philip

2010-01-01

The inclusion of children with special educational needs (SEN) has risen up the political agenda since the return of the Labour Government in 1997. This has seen increasing numbers of children with SEN being educated within mainstream schools. This study examines the perspectives of children with SEN attending both mainstream and special schools in relation to their experiences of physical education (PE). Findings demonstrate that children with SEN in both mainstream and special schools enjoy PE, although issues were raised in mainstream schools regarding bullying and the appropriateness of activities in PE lessons. The findings show how children offered suggestions about how to improve PE and make it more beneficial. The findings identify how children are empowered through consultation, and are aware of their needs and abilities. As such it is evident that schools and those supporting inclusive physical activity for children with SEN must use consultation as a tool for empowering pupils as a means of providing them with choices while gaining a rich insight into their lived experiences of PE.

The Contribution of Virtual Reality Software to Design in Teaching Physical Education

Directory of Open Access Journals (Sweden)

Esther Zaretsky

2011-08-01

Full Text Available Up to date research shows that training with virtual software develops the design of virtual simulations by physical education pre service teachers. The design of virtual simulations improved spatial skills, especially visualization of the body

Development and Evaluation of Educational Materials for Embedded Systems to Increase the Learning Motivation

Science.gov (United States)

Koshino, Makoto; Kojima, Yuki; Kanedera, Noboru

2013-01-01

Educational materials of embedded systems are currently used in many educational institutions. However, they have difficulties in arousing the interest of students. One of the reasons is that a poor CPU (central processing unit), which has been loaded in the current materials, cannot execute the multimedia processing. In order to make the…

The preparation and characterization of a loess sediment reference material for QC/QA of the annual radiation dose determination in luminescence dating

International Nuclear Information System (INIS)

De Corte, F.; De Wispelaere, A.; Vandenberghe, D.; Hossain, S.M.; Van den haute, P.

2005-01-01

Of crucial importance for obtaining reliable results in the luminescence dating of sediments, is the accurate and precise assessment of both the palaeodose and the annual radiation dose [cf the age equation: luminescence-age (ka) = palaeodose (Gray)/annual radiation dose (Gray.ka -1 )]. Clearly, for QC/QA of the annual radiation dose determination, a sediment reference material - not readily available up to now - would be highly useful. Therefore, in the present work a loess sediment was prepared and characterized with well-defined K, Th and U contents (the radiation dose being built up mainly by 40 K, and by 232 Th and 235,238 U and their decay daughters) and - otherwise expressed - alpha, beta, gamma and total radiation dose-rates. The material, a fine-grained aeolian loess sediment deposited in the Young-Pleistocene (Weichselian), a part of the Quaternary, was collected at Volkegem, Belgium. At the sampling site, NaI(Tl) field gamma-ray spectrometry was performed, yielding - via comparison with the 'Heidelberg calibration block' - concentrations (wet loess weight) for K, Th and U. About 14 kg material was brought to the laboratory and kept for ∼1 week at 110 degree C until constant weight (water content ≅14%). Then, the dried loess was subject to agate ball milling so as to pass through a 50 μm sieve. The ∼12 kg powder obtained in this way was homogenized both in a turbula mixer and manually. For the thus prepared loess material, good homogeneity for its K, Th and U content was found, as investigated via k 0 -INAA. For the final concentration and radiation dose-rate characterization, use was made of (next to NaI(Tl) field gamma-ray spectrometry and k 0 -INAA): extended energy-range low-background Ge gamma-ray spectrometry (also showing that the 232 Th and 238 U decay series were in secular equilibrium), thick source ZnS alpha-counting and GM beta-counting. For the latter', the conversion factors 'beta count-rate mutually implies radiation dose-rate' were

The Chernobyl fallout in Greece and its effects on the dating of archaeological materials

International Nuclear Information System (INIS)

Liritzis, Y.

1987-01-01

The effects of the fallout from the nuclear reactor accident at Chernobyl have been monitored at various sites in Greece. Here we present the first estimates of gamma dose rates, an essential parameter in the dating of archaeological materials by thermoluminescence (TL) and ESR methods. The dose rates are derived from the long-lived radionuclides of 137 Cs, 134 Cs, 106 Ru and 144 Ce (with t 1/2 ≥ 1 yr). The present dose rates vary between 30 and 60 mrad/yr, but maximum values of around 811 mrad/yr have also been recorded, for ground-surface exposures. These dose rate values must be regarded as very significant to TL and ESR dating of samples from now on and a correction factor should be applied. (orig.)

The eToolkit for Field Workers: A digital library of SBCC materials to support integrated counseling

OpenAIRE

Sultana, Zeenat; Shahjahan, Mohammad; Abedin Biplob, Mohammad Khairul

2017-01-01

Introduction: Rapid digital transformation in Bangladesh opens up great opportunity to strengthen Social and Behavior Change Communication (SBCC) for health, population and nutrition (HPN) programs.  One of the challenges is that health and family planning field workers in Bangladesh often lack up-to-date information, effective tools and resources to counsel effectively.  In some cases, the materials are outdated; in other cases, materials aren’t available.  Additionally, field workers have l...

Towards a Comprehensive and Up-To-Date Institutional Repository: Development of a Publications Tracking Process

KAUST Repository

Baessa, Mohamed

2016-06-15

As our repository matured we found that a concerted effort was needed to establish it as a resource that institutional stakeholders knew they could turn to for reliable information about the research outputs produced by researchers affiliated with or funded by our institution. The initial impetus for this project was the adoption of an institutional open access policy, which necessitated a process to track the publications of institutional authors, deposit items with applicable open access licenses, and notify authors when an accepted manuscript was needed. To support this process we developed a local publications tracking system independent of our hosted DSpace repository that regularly queries publisher and indexer APIs for new publications, checks for relevant permissions policies, identifies institutional authors and helps us send manuscript request emails. We also harvested records for past items and modified our repository to accommodate metadata-only records. The success of these tracking and harvesting services in making our repository comprehensive and up-to-date has allowed us to rely on our repository as the key source of publications information for additional integrations that update ORCID records with publication information, populate a PlumX metrics dashboard and, most recently, support the implementation of a current research information system (CRIS).

Towards a Comprehensive and Up-To-Date Institutional Repository: Development of a Publications Tracking Process

KAUST Repository

Baessa, Mohamed A.; Grenz, Daryl M.; Wang, Han

2016-01-01

As our repository matured we found that a concerted effort was needed to establish it as a resource that institutional stakeholders knew they could turn to for reliable information about the research outputs produced by researchers affiliated with or funded by our institution. The initial impetus for this project was the adoption of an institutional open access policy, which necessitated a process to track the publications of institutional authors, deposit items with applicable open access licenses, and notify authors when an accepted manuscript was needed. To support this process we developed a local publications tracking system independent of our hosted DSpace repository that regularly queries publisher and indexer APIs for new publications, checks for relevant permissions policies, identifies institutional authors and helps us send manuscript request emails. We also harvested records for past items and modified our repository to accommodate metadata-only records. The success of these tracking and harvesting services in making our repository comprehensive and up-to-date has allowed us to rely on our repository as the key source of publications information for additional integrations that update ORCID records with publication information, populate a PlumX metrics dashboard and, most recently, support the implementation of a current research information system (CRIS).

Cancer incidence predictions in the North of Portugal: keeping population-based cancer registration up to date.

Science.gov (United States)

Castro, Clara; Antunes, Luís; Lunet, Nuno; Bento, Maria José

2016-09-01

Decision making towards cancer prevention and control requires monitoring of trends in cancer incidence and accurate estimation of its burden in different settings. We aimed to estimate the number of incident cases in northern Portugal for 2015 and 2020 (all cancers except nonmelanoma skin and for the 15 most frequent tumours). Cancer cases diagnosed in 1994-2009 were collected by the North Region Cancer Registry of Portugal (RORENO) and corresponding population figures were obtained from Statistics Portugal. JoinPoint regression was used to analyse incidence trends. Population projections until 2020 were derived by RORENO. Predictions were performed using the Poisson regression models proposed by Dyba and Hakulinen. The number of incident cases is expected to increase by 18.7% in 2015 and by 37.6% in 2020, with lower increments among men than among women. For most cancers considered, the number of cases will keep rising up to 2020, although decreasing trends of age-standardized rates are expected for some tumours. Cervix was the only cancer with a decreasing number of incident cases in the entire period. Thyroid and lung cancers were among those with the steepest increases in the number of incident cases expected for 2020, especially among women. In 2020, the top five cancers are expected to account for 82 and 62% of all cases diagnosed in men and women, respectively. This study contributes to a broader understanding of cancer burden in the north of Portugal and provides the basis for keeping population-based incidence estimates up to date.

Opening up education the Danish way

DEFF Research Database (Denmark)

Bang, Jørgen; Dalsgaard, Christian; Kjær, Arne

and financial support). At the same time the Open Educational resources will be supplemented with a study-guide and offered to the public as a MOOC with very limited tutor support. A special advisory service will be developed for future full-time students using the MOOC as a pre-study introduction......This paper is based on the ongoing experiment of opening up a Danish Master programme in ICT-based Educational Design to a broader public network of students, teachers and learners. In its present form, the programme is a 2-year full time study delivered in a dual mode of face-to-face seminars...... and periods of online activities. The programme offers a Master in ICT-based Educational Design to bachelors in teacher training, pedagogical professions and university subjects, who are aiming at teaching in secondary education. The candidates learn to integrate and design digital tools within the teaching...

REIMEP-22 U age dating - Determination of the production date of a uranium certified test sample Inter-laboratory comparison, Report to participants

OpenAIRE

VENCHIARUTTI CELIA; VARGA ZSOLT; RICHTER Stephan; NICHOLL Adrian; KRAJKO JUDIT; JAKOPIC Rozle; MAYER Klaus; AREGBE Yetunde

2015-01-01

The REIMEP-22 inter-laboratory comparison (ILC) "U Age Dating - Determination of the production date of a uranium certified test sample" was organised by JRC-IRMM as support to the Nuclear Forensics International Technical Working Group (ITWG) This ILC was organised prior to the release of the candidate certified reference material IRMM-1000, produced in cooperation with JRC-ITU. The aim of REIMEP-22 was to determine the production date of the uranium certified test sample (i.e. the last chem...

Framework for Reducing Teaching Challenges Relating to Improvisation of Science Education Equipment and Materials in Schools

Science.gov (United States)

Akuma, Fru Vitalis; Callaghan, Ronel

2016-01-01

The science education budget of many secondary schools has decreased, while shortages and environmental concerns linked to conventional Science Education Equipment and Materials (SEEMs) have emerged. Thus, in some schools, resourceful educators produce low-cost equipment from basic materials and use these so-called improvised SEEMs in practical…

Industry to Education Technology Transfer Program. Composite Materials--Personnel Development. Final Report.

Science.gov (United States)

Tomezsko, Edward S. J.

A composite materials education program was established to train Boeing Helicopter Company employees in the special processing of new filament-reinforced polymer composite materials. During the personnel development phase of the joint Boeing-Penn State University project, an engineering instructor from Penn State completed a 5-month, full-time…

Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau.

Science.gov (United States)

Shen, Miaogen; Piao, Shilong; Chen, Xiaoqiu; An, Shuai; Fu, Yongshuo H; Wang, Shiping; Cong, Nan; Janssens, Ivan A

2016-09-01

Understanding vegetation responses to climate change on the Tibetan Plateau (TP) helps in elucidating the land-atmosphere energy exchange, which affects air mass movement over and around the TP. Although the TP is one of the world's most sensitive regions in terms of climatic warming, little is known about how the vegetation responds. Here, we focus on how spring phenology and summertime greenness respond to the asymmetric warming, that is, stronger warming during nighttime than during daytime. Using both in situ and satellite observations, we found that vegetation green-up date showed a stronger negative partial correlation with daily minimum temperature (Tmin ) than with maximum temperature (Tmax ) before the growing season ('preseason' henceforth). Summer vegetation greenness was strongly positively correlated with summer Tmin , but negatively with Tmax . A 1-K increase in preseason Tmin advanced green-up date by 4 days (P greenness by 3.6% relative to the mean greenness during 2000-2004 (P green-up date (P > 0.10) and higher summer Tmax even reduced greenness by 2.6% K(-1) (P greenness were probably due to the accompanying decline in water availability. The dominant enhancing effect of nighttime warming indicates that climatic warming will probably have stronger impact on TP ecosystems than on apparently similar Arctic ecosystems where vegetation is controlled mainly by Tmax . Our results are crucial for future improvements of dynamic vegetation models embedded in the Earth System Models which are being used to describe the behavior of the Asian monsoon. The results are significant because the state of the vegetation on the TP plays an important role in steering the monsoon. © 2016 John Wiley & Sons Ltd.

Materials Education: Opportunities over a Lifetime

Energy Technology Data Exchange (ETDEWEB)

Anderson, Iver E.; Schwartz, Lyle H.; Faber, Katherine T.; Cargill III, G. Slade; Houston, Betsy

2003-10-28

A report, in the form of abbreviated notes, of the 17th Biennial Conference on National Materials Policy ''Materials Education: Opportunities over a Lifetime'' held May 20-21, 2002 in College Park, MD, sponsored by the Federation of Materials Societies and the University Materials Council.

Performance of an online translation tool when applied to patient educational material.

Science.gov (United States)

Khanna, Raman R; Karliner, Leah S; Eck, Matthias; Vittinghoff, Eric; Koenig, Christopher J; Fang, Margaret C

2011-11-01

Language barriers may prevent clinicians from tailoring patient educational material to the needs of individuals with limited English proficiency. Online translation tools could fill this gap, but their accuracy is unknown. We evaluated the accuracy of an online translation tool for patient educational material. We selected 45 sentences from a pamphlet available in both English and Spanish, and translated it into Spanish using GoogleTranslate™ (GT). Three bilingual Spanish speakers then performed a blinded evaluation on these 45 sentences, comparing GT-translated sentences to those translated professionally, along four domains: fluency (grammatical correctness), adequacy (information preservation), meaning (connotation maintenance), and severity (perceived dangerousness of an error if present). In addition, evaluators indicated whether they had a preference for either the GT-translated or professionally translated sentences. The GT-translated sentences had significantly lower fluency scores compared to the professional translation (3.4 vs. 4.7, P educational material, GT performed comparably to professional human translation in terms of preserving information and meaning, though it was slightly worse in preserving grammar. In situations where professional human translations are unavailable or impractical, online translation may someday fill an important niche. Copyright © 2011 Society of Hospital Medicine.

Differences in perceived difficulty in print and online patient education materials.

Science.gov (United States)

Farnsworth, Michael

2014-01-01

Written patient education materials frequently exceed the reading ability of the general public. Patients are often intimidated by the task of reading patient education materials, perceiving the materials’ difficulty levels as prohibitive, even when they do not exceed the patients’ reading abilities. It is unclear how the delivery mechanism--print or a computer screen--affects a patient’s reading experience through his/her perception of its difficulty. To determine whether first-year college students perceived online or print-based patient education materials as more difficult to read. Convenience sampling of first-year college students. Some first-year college students perceived online patient education materials to be more difficult to read than print-based ones--even when the reading level of the patient education materials was similar. Demographic information about this sample’s high levels of digital literacy suggests that other populations might also perceive online patient education materials as more difficult to read than print-based equivalents. Patients’ perceptions of the difficulty of patient education materials influenced their ability to effectively learn from those materials. This article concludes with a call for more research into patients’ perceptions of difficulty of patient education materials in print vs on a screen.

Arthroscopy Up to Date: Hip Femoroacetabular Impingement.

Science.gov (United States)

Khan, Moin; Habib, Anthony; de Sa, Darren; Larson, Christopher M; Kelly, Bryan T; Bhandari, Mohit; Ayeni, Olufemi R; Bedi, Asheesh

2016-01-01

To provide a comprehensive review and summary of the research published in Arthroscopy: The Journal of Arthroscopic and Related Surgery and The American Journal of Sports Medicine (AJSM) related to hip arthroscopy for femoroacetabular impingement (FAI). A comprehensive review was conducted in duplicate of Arthroscopy and AJSM from February 2012 to February 2015 for all articles related to FAI, and a quality assessment was completed for all included studies. Clinical outcomes were dichotomized into short-term (Arthroscopy and 44 studies in AJSM, primarily from North America (78.8%), that predominantly assessed clinical outcomes after arthroscopic hip surgery (46.1%). Seventy-one percent of Arthroscopy studies and 20.5% of AJSM studies were Level IV evidence. The modified Harris Hip Score (mHHS) was used by 81.5% of included studies. Pooled weighted mean mHHS values after arthroscopic surgery for FAI showed improvements at the midterm from 60.5 points (range, 56.6 to 83.6 points) to 80.5 points (range, 72.1 to 98.0 points) out of a possible 100 points. Pooled weighted outcomes for labral repair showed mean mHHS improvements from 63.8 points (range, 62.5 to 69.0 points) preoperatively to 86.9 points (range, 85.5 to 89.9 points) up to 24 months postoperatively. This comprehensive review of research published in Arthroscopy and AJSM over the past 3 years identified a number of key findings. Arthroscopic intervention results in improvements in functional outcomes at both the short-term and midterm for patients with symptomatic FAI in the absence of significant existing degenerative changes. Labral repair may result in improvements over labral debridement. The most commonly used outcome score was the mHHS for objective assessment of surgical success. There is a need for continued focus on improvement of methodologic quality and reporting of research pertaining to FAI. Level IV, systematic review of Level IV studies. Copyright © 2016 Arthroscopy Association of North

Violet stimulated luminescence dating of quartz from Luochuan (Chinese loess plateau): Agreement with independent chronology up to ∼600 ka

DEFF Research Database (Denmark)

Ankjærgaard, C.; Guralnik, B.; Buylaert, Jan-Pieter

2016-01-01

Luminescence dating at the Luochuan loess type (China) section is at present limited to ∼0.1 Ma using quartz blue light stimulated luminescence (BLSL), but can be extended back in time to ∼0.5 Ma by resorting to the more developmental post-infrared infrared stimulated luminescence (post-IR IRSL...... demonstrate that the Multi-Aliquot Additive-Dose (MAAD) protocol produces a VSL chronology at Luochuan which is in agreement with independent ages up to ∼0.6 Ma. For a more representative environmental dose rate of ∼2 Gy/ka (∼35% lower than at Luochuan), the documented range of MAAD-VSL sensitivity (200...

Mobile phones. Up-to-date knowledge and actual questions

International Nuclear Information System (INIS)

Asmuss, Monika; Dehos, Anne; Geschwentner, Dirk; Kreuzer, Michaela; Matthes, Ruediger; Poelzl, Christiane; Pophof, Blanka

2010-01-01

Starting point of the German Mobile Phone Research Project (DMF) were reported health effects from low level exposure. In mostly interdisciplinary projects, these effects were followed up. In addition the actual everyday exposure was evaluated and the risk perception within the society and possibilities for risk communication were investigated. Although there are still scientific questions unsolved, the DMF contributed significantly to an improvement of the risk assessment and the public communication. Overall, the results from DMF and other research projects do not give reason to doubt the effectiveness of the radiation protection limits. (orig.)

Development of Educational Materials to Enhance Students‧ Motivation using the ODE Physics Engine

Science.gov (United States)

Demura, Kosei

This paper presents educational materials, a simulator and a textbook, using the Open Dynamics Engine (ODE) . ODE is an open source, fast, robust and industrial quality library for a real-time and interactive simulation of rigid body dynamics. ODE is suitable for developing educational materials. However, there had been no book which introduced how to use ODE to make simulators written in Japanese. Thus I wrote a textbook which gave basic robotics and how to make simulators based on ODE. Students are able to tackle the subject with interest using the textbook and the simulators.

Dating ancient monuments by nuclear radiation

International Nuclear Information System (INIS)

Goedicke, C.

2000-01-01

In the fifties and sixties several disciplines dealing with chronologies but lacking precise methods of measurements (geology, biology, archaeology and art history) became aware of the radioactive decay as a tool of measuring elapsed time. Among the disciplines that benefit most from physical methods archaeology has to be named first. So was archaeological work revolutionised by the introduction of the C-14 dating method. A wider selection of material became datable after the introduction of luminescence techniques using the effect of nuclear radiation on semiconductors. These minerals are widespread among archaeological materials. In ancient monuments, the objective of this paper, semiconductors almost exclusively form the material basis. Over the last four millennia wood, stone, mortar and fired bricks have been used for the construction of buildings. After discussing methods taking wood as a dating material, a broader view will be given on the results achieved by luminescence dating of fired bricks, mortar and stone. For many years brick dating was performed by thermoluminescence, the recipes followed those of ceramic dating. Preferably multiple aliquot additive dose protocols were used on polymineral fine grain fractions (1-10 μm). It was expected that the error in dating monuments would be smaller compared to ceramic dating, because of the constancy of the environmental conditions which a brick experiences during its lifetime. However, the variability of firing temperatures in brick kilns overthrows this advantage. Therefore, the demands of art historians to fall short of an error margin of 5% could generally not be fulfilled. Especially in medieval or renaissance times the temporal resolution of thermoluminescence is inferior to traditional stylistic dating as long as specific stylistic forms are present. New optical luminescence techniques and a new philosophy of dose evaluation, based on single aliquot regeneration protocols, produce less scatter, and in

Exploring the role of curriculum materials to support teachers in science education reform

Science.gov (United States)

Schneider, Rebecca M.

2001-07-01

For curriculum materials to succeed in promoting large-scale science education reform, teacher learning must be supported. Materials were designed to reflect desired reforms and to be educative by including detailed lesson descriptions that addressed necessary content, pedagogy, and pedagogical content knowledge for teachers. The goal of this research was to describe how such materials contributed to classroom practices. As part of an urban systemic reform effort, four middle school teachers' initial enactment of an inquiry-based science unit on force and motion were videotaped. Enactments focused on five lesson sequences containing experiences with phenomena, investigation, technology use, or artifact development. Each sequence spanned three to five days across the 10-week unit. For each lesson sequence, intended and actual enactment were compared using ratings of (1) accuracy and completeness of science ideas presented, (2) amount student learning opportunities, similarity of learning opportunities with those intended, and quality of adaptations , and (3) amount of instructional supports offered, appropriateness of instructional supports and source of ideas for instructional supports. Ratings indicated two teachers' enactments were consistent with intentions and two teachers' enactments were not. The first two were in school contexts supportive of the reform. They purposefully used the materials to guide enactment, which tended to be consistent with standards-based reform. They provided students opportunities to use technology tools, design investigations, and discuss ideas. However, enactment ratings were less reflective of curriculum intent when challenges were greatest, such as when teachers attempted to present challenging science ideas, respond to students' ideas, structure investigations, guide small-group discussions, or make adaptations. Moreover, enactment ratings were less consistent in parts of lessons where materials did not include lesson specific

Determinants of inequality in the up-to-date fully immunization coverage among children aged 24-35 months: Evidence from Zhejiang province, East China.

Science.gov (United States)

Hu, Yu; Wang, Ying; Chen, Yaping; Li, Qian

2017-08-03

This study aimed to determine the degree and determinants of inequality in up-to-date fully immunization (UTDFI) coverage among children of Zhejiang province, east China. We used data from the Zhejiang provincial vaccination coverage survey of 2014 and the health outcome was the UTDFI status among children aged 24-35 months. The household income per month was used as an index of socio-economic status for the inequality analysis. The concentration index (CI) was used to quantify the degree of inequality and the decomposition approach was applied to quantify the contributions from demographic factors to inequality in UTDFI coverage. The UTDFI coverage was 80.63% and the CI for UTDFI coverage was 0.12028 (95% CI: 0.10852-0.13175), indicating that immunization practice significantly favored children with relatively higher socio-economic status. The results of decomposition analysis suggested that 68.2% of the socio-economic inequality in UTDFI coverage should be explained by the mother's education level. Furthermore, factors such as birth order, ethnic group, maternal employment status, residence, immigration status, GDP per-capital and percentage of public health spending of the total health spending also could explain the disparity in UTDFI coverage. There exists inequality in UTDFI coverage among the socio-economic disadvantage children. Health interventions of narrowing the socio-economic inequality in UTDFI coverage will benefit from being supplemented with strategies aimed at poverty and illiteracy reduction.

Differences in Perceived Difficulty in Print and Online Patient Education Materials

Science.gov (United States)

Farnsworth, Michael

2014-01-01

Context: Written patient education materials frequently exceed the reading ability of the general public. Patients are often intimidated by the task of reading patient education materials, perceiving the materials’ difficulty levels as prohibitive, even when they do not exceed the patients’ reading abilities. It is unclear how the delivery mechanism—print or a computer screen—affects a patient’s reading experience through his/her perception of its difficulty. Objective: To determine whether first-year college students perceived online or print-based patient education materials as more difficult to read. Design: Convenience sampling of first-year college students. Results: Some first-year college students perceived online patient education materials to be more difficult to read than print-based ones—even when the reading level of the patient education materials was similar. Demographic information about this sample’s high levels of digital literacy suggests that other populations might also perceive online patient education materials as more difficult to read than print-based equivalents. Patients’ perceptions of the difficulty of patient education materials influenced their ability to effectively learn from those materials. Conclusion: This article concludes with a call for more research into patients’ perceptions of difficulty of patient education materials in print vs on a screen. PMID:25662526

Raising students and educators awareness of radioactive materials transport through creative classroom materials and exhibits

International Nuclear Information System (INIS)

Holm, J.; Sandoz, C.; Dickenson, J.; Lee, J.C.; Smith, A.M.

1994-01-01

The public is concerned about how the shipping and handling of radioactive materials affects them and their environment. Through exhibit showings doing professional education conferences and smaller, focussed workshops, the United States Department of Energy (DOE) has found teachers and students to be an especially interested audience for hazardous and radioactive materials transportation information. DOE recognizes the importance of presenting educational opportunities to students about scientific and societal issues associated with planning for and safely transporting these types of materials. Raising students' and educators' awareness of hazardous and radioactive materials transport through creative classroom materials and exhibits may help them make informed decisions as adults about this often controversial and difficult issue

DECS tries out instructional materials on AIDS prevention education.

Science.gov (United States)

1994-01-01

A national try-out of the newly developed print and non-print instructional materials on AIDS Education is being conducted by the Department of Education, Culture and Sports (DECS) this school year 1993-to 1994. To determine the effectiveness of these materials, various public and private schools in Region IV (Southern Tagalog), VII (Central Visayas) XI (Southern Mindanao) and National Capital Region (Metro, Manila) were chosen as try-out institutions. The AIDS education materials will be tried out in different subjects in some grade and year levels such as civics and culture (grade one); science and health (grades three and six); home economics and livelihood education (grade five); physical education, health and music (second year) and Pilipino Language (third year). The materials for the elementary level consist of posters, cut-out pictures, voice tapes, jingles, talking books and slides, while the secondary school level utilizes modules. For the tertiary level, a Resource Book on AIDS Prevention Education is used by the Teacher Training Institutions and the Non-Formal Education employs the Facilitator's Guide for Levels I-III. These materials will be tried out in both urban and rural schools, with control school and experimental school at each level. full text

Strategy of valid 14C dates choice in syngenetic permafrost

Science.gov (United States)

Vasil'chuk, Y. K.; Vasil'chuk, A. C.

2014-11-01

The main problem of radiocarbon dating within permafrost is the uncertain reliability of the 14C dates. Syngenetic sediments contain allochthonous organic deposit that originated at a distance from its present position. Due to the very good preservation of organic materials in permafrost conditions and numerous re-burials of the fossils from ancient deposits into younger ones the dates could be both younger and older than the true age of dated material. The strategy for the most authentic radiocarbon date selection for dating of syncryogenic sediments is considered taking into account the fluvial origin of the syngenetic sediments. The re-deposition of organic material is discussed in terms of cyclic syncryogenic sedimentation and also the possible re-deposition of organic material in subaerial-subaqueous conditions. The advantages and the complications of dating organic micro-inclusions from ice wedges by the accelerator mass spectrometry (AMS) method are discussed applying to true age of dated material search. Radiocarbon dates of different organic materials from the same samples are compared. The younger age of the yedoma from cross-sections of Duvanny Yar in Kolyma River and Mamontova Khayata in the mouth of Lena River is substantiated due to the principle of the choice of the youngest 14C date from the set.

Technology is Here to Stay in (Online Higher Education

Directory of Open Access Journals (Sweden)

Jennifer A. Herzog

2015-02-01

Full Text Available Review of: Minds Online; Michelle D. Miller; (2014. Harvard University Press, Cambridge, MA. 279 pages.A review of the new book "Minds Online" by Michelle D. Miller, a cognitive psychologist, in which she analyzes the history of attention, memory, and thinking research and how new studies can enhance technology-driven education.  A low-tech approach makes this book very readable to faculty and administrators thinking of diving into the online teacing format, yet its up to date research and practical examples are a rich resource for even veteran distance learning educators.

National Labs Host Classroom Ready Energy Educational Materials

Science.gov (United States)

Howell, C. D.

2009-12-01

The Department of Energy (DOE) has a clear goal of joining all climate and energy agencies in the task of taking climate and energy research and development to communities across the nation and throughout the world. Only as information on climate and energy education is shared with the nation and world do research labs begin to understand the massive outreach work yet to be accomplished. The work at hand is to encourage and ensure the climate and energy literacy of our society. The national labs have defined the K-20 population as a major outreach focus, with the intent of helping them see their future through the global energy usage crisis and ensure them that they have choices and a chance to redirect their future. Students embrace climate and energy knowledge and do see an opportunity to change our energy future in a positive way. Students are so engaged that energy clubs are springing up in highschools across the nation. Because of such global clubs university campuses are being connected throughout the world (Energy Crossroads www.energycrossroads.org) etc. There is a need and an interest, but what do teachers need in order to faciliate this learning? It is simple, they need financial support for classroom resources; standards based classroom ready lessons and materials; and, training. The National Renewable Energy Laboratory (NREL), a Department of Energy Lab, provides standards based education materials to schools across the nation. With a focus on renewable energy and energy efficiency education, NREL helps educators to prompt students to analyze and then question their energy choices and evaluate their carbon footprint. Classrooms can then discover the effects of those choices on greenhouse gas emmissions and climate change. The DOE Office of Science has found a way to contribute to teachers professional development through the Department of Energy Academics Creating Teacher Scientists (DOE ACTS) Program. This program affords teachers an opportunity to

Bomb pulse radiocarbon dating

International Nuclear Information System (INIS)

Tuniz, C.; Zoppi, U.; Hotchkis, M.A.C.

2004-01-01

by measuring the residual 14 C concentration in organic samples, it is possible to calculate the time elapsed since the material was originally formed. Ages up to about 50 000 before present (BP) can be determined by radiocarbon dating. Calibration curves determined with high precision for all of the Holocene by radiocarbon measurements on tree ring samples, which are independently and precisely dated by dendrochronology, are used to correct for variations of 14 C production rate in the atmosphere due to geomagnetic and heliomagnetic effects and global variations in the parameters of the carbon cycle

Education in radiation protection. How to maintain competence and build up trust

International Nuclear Information System (INIS)

Vahlbruch, J.W.

2016-01-01

Education and Training in Radiation Protection is the most important key to maintain the competence necessary to handle radioactive material or to use ionizing radiation. This article gives a short overview of new developments concerning E and T in RP for different fields of applications in Germany and provides some ideas how competence can support the development of trust between stakeholders in order to ensure RP.

Predicting Improvement After a Bystander Program for the Prevention of Sexual and Dating Violence.

Science.gov (United States)

Hines, Denise A; Palm Reed, Kathleen M

2015-07-01

Although evidence suggests that bystander prevention programs are promising interventions for decreasing sexual violence and dating violence on college campuses, there have been no studies to date evaluating moderators of bystander program effectiveness. The current study evaluates whether different demographic characteristics, attitudes, knowledge, and behaviors at pretest predict change over a 6-month follow-up for students who participated in a bystander prevention program. Participants in the three assessments (pretest, posttest, 6-month follow-up) included 296 college students who were mandated to attend a bystander program during their first year orientation. Analyses showed that with few exceptions, the bystander program worked best for students who were most at risk given their pretest demographics and levels of attitudes condoning dating violence and sexual violence, bystander efficacy, and bystander behaviors. Results are discussed in terms of suggestions for future research. © 2014 Society for Public Health Education.

Comparative analysis of online patient education material pertaining to hepatitis and its complications.

Science.gov (United States)

Gulati, Rishabh; Nawaz, Mohammad; Pyrsopoulos, Nikolaos T

2016-05-01

Approximately 50% of patients leave the doctor's office with a poor understanding of their diagnosis. Online patient education websites are becoming a major source of information for many of the patients. Here, we determine the reading grade level of online patient education materials on hepatitis B, hepatitis C, cirrhosis, and hepatocellular cancer and compare it with the National Institutes of Health-recommended reading grade level of sixth to seventh grade or under. A Google search was performed to retrieve patient reading materials. Text was modified to remove medical terms that were defined within the article. Documents were then divided into categories of introduction, risk factors, symptoms, diagnosis, treatment, and prevention. Each document was then analyzed using six validated readability tests to determine the grade level and complexity on the basis of the number of words, syllables, or number of uncommon words. Modified documents had a mean readability score of 10.23, although the recommended score is less than 7.0. Cirrhosis had the highest reading grade level, with a median of 11.3, whereas hepatitis B and hepatocellular carcinoma had the easiest readability, with a median of 9.5. Furthermore, treatment subsection was the most difficult, with a median score of 10.8. Patient reading materials reviewed in this study were written well above the recommended reading grade level. These findings suggest review of patient education materials in an effort to close the gap between the average reading level and the reading materials.

Differences in Perceived Difficulty in Print and Online Patient Education Materials

OpenAIRE

Farnsworth, Michael

2014-01-01

Patients are often intimidated by the task of reading patient education materials, perceiving the materials’ difficulty levels as prohibitive, even when they do not exceed the patients’ reading abilities. Some first-year college students perceived online patient education materials to be more difficult to read than print-based ones—even when the reading level of the patient education materials was similar. Patients’ perceptions of the difficulty of patient education materials influenced their...

Dating of Uranium Materials by Using Combination of ICP-MS and SIMS

International Nuclear Information System (INIS)

Stebelkov, Y.; Aleshin, M.; Elantyev, I.; Grachev, A.; Zhizhin, K.; Stebelkov, V.

2015-01-01

The age of nuclear and some other radioactive materials can be determined undoubtedly by using ICP-MS techniques. But it can be correct if only one nuclear or another radioactive material is presented in analyzed sample and no isotope-chronograph presented in background particles in significant quantities. For particle analysis, which can be implemented by using SIMS, these restrictions are not valid. Practically one particle always characterizes only one material and does not contain background isotopes-chronographs. But age determination is based on the result of measuring of the content ratio of Th230 and U234. The difference of ionization coefficients of uranium and thorium and dependence of these coefficients on composition of particle does not allow using this method directly for age determination. Nevertheless SIMS is useful for dating of uranium materials, especially if the sample can contain small amounts of different materials. In this case the analysis of different fragments of materials by SIMS can confirm or not confirm the result, had been obtained by ICP-MS. If all detected and analyzed particles and fragments will have the same ratio of ion currents of Th230 and U234, the result of ICP-MS is true. If particles and fragments will have different ratios the result of ICP-MS cannot be related to any of presented materials. But in the last case the ages of different materials can be still estimated if different fragments have different ages, but the same elemental composition. The ''age'' had been determined by ICP-MS can be correlated with the average ratio of ion currents of Th230 and U234 had been determined by SIMS for all analyzed particles or fragments. This correlation determines the ratio of ionization coefficients of uranium and thorium, which should be the same for particles with the same elemental composition. (author)

Are we failing to communicate? Internet-based patient education materials and radiation safety

International Nuclear Information System (INIS)

Hansberry, David R.; Ramchand, Tekchand; Patel, Shyam; Kraus, Carl; Jung, Jin; Agarwal, Nitin; Gonzales, Sharon F.; Baker, Stephen R.

2014-01-01

Introduction: Patients frequently turn to the Internet when seeking answers to healthcare related inquiries including questions about the effects of radiation when undergoing radiologic studies. We investigate the readability of online patient education materials concerning radiation safety from multiple Internet resources. Methods: Patient education material regarding radiation safety was downloaded from 8 different websites encompassing: (1) the Centers for Disease Control and Prevention, (2) the Environmental Protection Agency, (3) the European Society of Radiology, (4) the Food and Drug Administration, (5) the Mayo Clinic, (6) MedlinePlus, (7) the Nuclear Regulatory Commission, and (8) the Society of Pediatric Radiology. From these 8 resources, a total of 45 articles were analyzed for their level of readability using 10 different readability scales. Results: The 45 articles had a level of readability ranging from 9.4 to the 17.2 grade level. Only 3/45 (6.7%) were written below the 10th grade level. No statistical difference was seen between the readability level of the 8 different websites. Conclusions: All 45 articles from all 8 websites failed to meet the recommendations set forth by the National Institutes of Health and American Medical Association that patient education resources be written between the 3rd and 7th grade level. Rewriting the patient education resources on radiation safety from each of these 8 websites would help many consumers of healthcare information adequately comprehend such material

Are we failing to communicate? Internet-based patient education materials and radiation safety

Energy Technology Data Exchange (ETDEWEB)

Hansberry, David R., E-mail: hansbedr@njms.rutgers.edu; Ramchand, Tekchand, E-mail: ramchate@njms.rutgers.edu; Patel, Shyam, E-mail: patel288@njms.rutgers.edu; Kraus, Carl, E-mail: krauscf@njms.rutgers.edu; Jung, Jin, E-mail: jungjk@njms.rutgers.edu; Agarwal, Nitin, E-mail: nitin.agarwal@rutgers.edu; Gonzales, Sharon F., E-mail: gonzalsh@njms.rutgers.edu; Baker, Stephen R., E-mail: bakersr@njms.rutgers.edu

2014-09-15

Introduction: Patients frequently turn to the Internet when seeking answers to healthcare related inquiries including questions about the effects of radiation when undergoing radiologic studies. We investigate the readability of online patient education materials concerning radiation safety from multiple Internet resources. Methods: Patient education material regarding radiation safety was downloaded from 8 different websites encompassing: (1) the Centers for Disease Control and Prevention, (2) the Environmental Protection Agency, (3) the European Society of Radiology, (4) the Food and Drug Administration, (5) the Mayo Clinic, (6) MedlinePlus, (7) the Nuclear Regulatory Commission, and (8) the Society of Pediatric Radiology. From these 8 resources, a total of 45 articles were analyzed for their level of readability using 10 different readability scales. Results: The 45 articles had a level of readability ranging from 9.4 to the 17.2 grade level. Only 3/45 (6.7%) were written below the 10th grade level. No statistical difference was seen between the readability level of the 8 different websites. Conclusions: All 45 articles from all 8 websites failed to meet the recommendations set forth by the National Institutes of Health and American Medical Association that patient education resources be written between the 3rd and 7th grade level. Rewriting the patient education resources on radiation safety from each of these 8 websites would help many consumers of healthcare information adequately comprehend such material.

Libretexts: a flexible online open system for disseminating educational materials relevant to geophysics at all levels

Science.gov (United States)

Halpern, J. B.

2017-12-01

Libretexts is an online open system for distributing educational materials with over 5 million page views per month. Covering geophysics, chemistry, physics and more it offers a platform for authors and users including faculty and students to access curated educational materials. Currently there are on line texts covering geology, geobiology, natural hazards and understanding the refusal to accept climate change as well as relevant materials in other sections on aquatic and atmospheric chemistry. In addition to "written" materials Libretexts provides access to simulations and demonstrations that are relevant. Most importantly the Libretext project welcomes new contributors. Faculty can use available materials to construct their own texts or supplementary materials in relatively short order. Since all material is covered by a Creative Commons Copyright, material can be added to as needed for teaching.

Methodical Support of Using of Up-to-Date Recruiting Methods at the Machine-Building Enterprises

OpenAIRE

Zhilyaeva Irina Y.

2013-01-01

The methodical approach for assessment of recruiting state using the integral index of recruiting quality, and methodical approach for choice of recruiting methods using factor analysis are proposed in the article. The methodical approach for using up-to-date recruiting methods is proposed.В статье предложены методические подходы к оценке состояния рекрутинга персонала с помощью введения интегрального показателя качества рекрутинга персонала и выбора методов подбора персонала на стадии оценив...

Opening up Education: The Collective Advancement of Education through Open Technology, Open Content, and Open Knowledge

Science.gov (United States)

Iiyoshi, Toru, Ed.; Kumar, M. S. Vijay, Ed.

2008-01-01

Given the abundance of open education initiatives that aim to make educational assets freely available online, the time seems ripe to explore the potential of open education to transform the economics and ecology of education. Despite the diversity of tools and resources already available--from well-packaged course materials to simple games, for…

Effectiveness and economic evaluation of self-help educational materials for the prevention of smoking relapse: randomised controlled trial.

Science.gov (United States)

Blyth, Annie; Maskrey, Vivienne; Notley, Caitlin; Barton, Garry R; Brown, Tracey J; Aveyard, Paul; Holland, Richard; Bachmann, Max O; Sutton, Stephen; Leonardi-Bee, Jo; Brandon, Thomas H; Song, Fujian

2015-07-01

Most people who quit smoking successfully for a short period will return to smoking again in 12 months. A previous exploratory meta-analysis indicated that self-help booklets may be effective for smoking relapse prevention in unaided quitters. This study aimed to evaluate the effectiveness of a set of self-help educational booklets to prevent smoking relapse in people who had stopped smoking with the aid of behavioural support. This is an open, randomised controlled trial and qualitative process evaluation. Trial participants were randomly allocated to one of two groups, using a simple randomisation process without attempts to stratify by participant characteristics. The participant allocation was 'concealed' because the recruitment of quitters occurred before the random allocation. Short-term quitters were recruited from NHS Stop Smoking Clinics, and self-help educational materials were posted to study participants at home. A total of 1407 carbon monoxide (CO)-validated quitters at 4 weeks after quit date in NHS Stop Smoking Clinics. The trial excluded pregnant women and quitters who were not able to read the educational materials in English. Participants in the experimental group (n = 703) received a set of eight revised Forever Free booklets, and participants in the control group (n = 704) received a single leaflet that is currently given to NHS patients. Follow-up telephone interviews were conducted 3 and 12 months after quit date. The primary outcome was prolonged, CO-verified abstinence from months 4 to 12 during which time no more than five cigarettes were smoked. The secondary outcomes included self-reported abstinence during the previous 7 days at 3 and 12 months, CO-verified abstinence at 12 months, costs (NHS and NHS and participant medication costs perspectives) and quality-adjusted life-years. Logistic regression analyses were conducted to investigate effect-modifying variables. A simultaneous qualitative process evaluation was conducted to help

Navigating the Interface between Design Education and Fashion Business Start-up

Science.gov (United States)

Mills, Colleen E.

2012-01-01

Purpose: The purpose of this paper is to address the interface between design education and business start-up in the designer fashion industry (DFI) and provide a new framework for reflecting on ways to improve design education and graduates' business start-up preparedness. Design/methodology/approach: This interpretive study employed…

77 FR 51788 - Notice of Submission for OMB Review; Institute of Education Sciences; Education Longitudinal...

Science.gov (United States)

2012-08-27

... members are around 26 years of age. The third follow-up field test was conducted in 2011. This submission...; Education Longitudinal Study 2002 (ELS:2002) Third Follow-Up Postsecondary Transcripts (ELS:2002 PETS) and... third follow-up 2012 full scale data collection. DATES: Interested persons are invited to submit...

Education resources of the National Center for Biotechnology Information.

Science.gov (United States)

Cooper, Peter S; Lipshultz, Dawn; Matten, Wayne T; McGinnis, Scott D; Pechous, Steven; Romiti, Monica L; Tao, Tao; Valjavec-Gratian, Majda; Sayers, Eric W

2010-11-01

The National Center for Biotechnology Information (NCBI) hosts 39 literature and molecular biology databases containing almost half a billion records. As the complexity of these data and associated resources and tools continues to expand, so does the need for educational resources to help investigators, clinicians, information specialists and the general public make use of the wealth of public data available at the NCBI. This review describes the educational resources available at NCBI via the NCBI Education page (www.ncbi.nlm.nih.gov/Education/). These resources include materials designed for new users, such as About NCBI and the NCBI Guide, as well as documentation, Frequently Asked Questions (FAQs) and writings on the NCBI Bookshelf such as the NCBI Help Manual and the NCBI Handbook. NCBI also provides teaching materials such as tutorials, problem sets and educational tools such as the Amino Acid Explorer, PSSM Viewer and Ebot. NCBI also offers training programs including the Discovery Workshops, webinars and tutorials at conferences. To help users keep up-to-date, NCBI produces the online NCBI News and offers RSS feeds and mailing lists, along with a presence on Facebook, Twitter and YouTube.

Relationship Dissolution and Psychologically Aggressive Dating Relationships: Preliminary Findings From a College-Based Relationship Education Course.

Science.gov (United States)

Negash, Sesen; Cravens, Jaclyn D; Brown, Preston C; Fincham, Frank D

This study evaluated the impact of a relationship education program, delivered as part of a college course, among students (N = 152) who reported experiencing psychological aggression in their exclusive dating relationship. Preliminary results showed that compared to those in the control group, participants receiving relationship education were significantly more likely to end their romantic relationship, even after controlling for relationship satisfaction. Furthermore, when relationship termination occurred, those in the intervention group were significantly more likely to attribute the breakup to their participation in the class as compared to those in the control group. The tentative findings are an important preliminary step in assessing the benefits of relationship education in reducing the risk of psychological aggression among college students.

Developing Culturally Targeted Diabetes Educational Materials for Older Russian-Speaking Immigrants.

Science.gov (United States)

Van Son, Catherine R

2014-07-01

Older adults who immigrate late in life face many challenges adapting to a new country. Immigrants bring their cultural beliefs and behaviors with them, which can influence their ability to make dietary changes required when they have type 2 diabetes. Culturally targeted patient education materials are needed to improve immigrants' health literacy and abilities to self-manage diabetes. Currently, there is a scarcity of diabetes patient education materials to meet the educational needs of the Russian-speaking immigrant group. The purpose of this article is to describe a project in which culturally targeted diabetes education materials for older Russian-speaking immigrants were designed and developed. Culturally targeted patient education materials are essential if they are to be accepted and used by clients from different ethnic minority populations. The creation of culturally relevant materials requires a team effort and community stakeholder input. The availability of materials on the internet facilitates access and use by health care providers. Culturally targeted education materials are an important component in addressing health literacy in ethnic minority populations. Next steps require that these materials be evaluated to test their impact on diabetes self-management behaviors and clinical outcomes such as adherence, amount of physical activity, and blood glucose levels. © 2014 The Author(s).

Are we failing to communicate? Internet-based patient education materials and radiation safety.

Science.gov (United States)

Hansberry, David R; Ramchand, Tekchand; Patel, Shyam; Kraus, Carl; Jung, Jin; Agarwal, Nitin; Gonzales, Sharon F; Baker, Stephen R

2014-09-01

Patients frequently turn to the Internet when seeking answers to healthcare related inquiries including questions about the effects of radiation when undergoing radiologic studies. We investigate the readability of online patient education materials concerning radiation safety from multiple Internet resources. Patient education material regarding radiation safety was downloaded from 8 different websites encompassing: (1) the Centers for Disease Control and Prevention, (2) the Environmental Protection Agency, (3) the European Society of Radiology, (4) the Food and Drug Administration, (5) the Mayo Clinic, (6) MedlinePlus, (7) the Nuclear Regulatory Commission, and (8) the Society of Pediatric Radiology. From these 8 resources, a total of 45 articles were analyzed for their level of readability using 10 different readability scales. The 45 articles had a level of readability ranging from 9.4 to the 17.2 grade level. Only 3/45 (6.7%) were written below the 10th grade level. No statistical difference was seen between the readability level of the 8 different websites. All 45 articles from all 8 websites failed to meet the recommendations set forth by the National Institutes of Health and American Medical Association that patient education resources be written between the 3rd and 7th grade level. Rewriting the patient education resources on radiation safety from each of these 8 websites would help many consumers of healthcare information adequately comprehend such material. Copyright © 2014. Published by Elsevier Ireland Ltd.

The PRIDE (Partnership to Improve Diabetes Education) Toolkit: Development and Evaluation of Novel Literacy and Culturally Sensitive Diabetes Education Materials.

Science.gov (United States)

Wolff, Kathleen; Chambers, Laura; Bumol, Stefan; White, Richard O; Gregory, Becky Pratt; Davis, Dianne; Rothman, Russell L

2016-02-01

Patients with low literacy, low numeracy, and/or linguistic needs can experience challenges understanding diabetes information and applying concepts to their self-management. The authors designed a toolkit of education materials that are sensitive to patients' literacy and numeracy levels, language preferences, and cultural norms and that encourage shared goal setting to improve diabetes self-management and health outcomes. The Partnership to Improve Diabetes Education (PRIDE) toolkit was developed to facilitate diabetes self-management education and support. The PRIDE toolkit includes a comprehensive set of 30 interactive education modules in English and Spanish to support diabetes self-management activities. The toolkit builds upon the authors' previously validated Diabetes Literacy and Numeracy Education Toolkit (DLNET) by adding a focus on shared goal setting, addressing the needs of Spanish-speaking patients, and including a broader range of diabetes management topics. Each PRIDE module was evaluated using the Suitability Assessment of Materials (SAM) instrument to determine the material's cultural appropriateness and its sensitivity to the needs of patients with low literacy and low numeracy. Reading grade level was also assessed using the Automated Readability Index (ARI), Coleman-Liau, Flesch-Kincaid, Fry, and SMOG formulas. The average reading grade level of the materials was 5.3 (SD 1.0), with a mean SAM of 91.2 (SD 5.4). All of the 30 modules received a "superior" score (SAM >70%) when evaluated by 2 independent raters. The PRIDE toolkit modules can be used by all members of a multidisciplinary team to assist patients with low literacy and low numeracy in managing their diabetes. © 2015 The Author(s).

Efforts to control radiation build-up in Ringhals

Energy Technology Data Exchange (ETDEWEB)

Egner, K.; Aronsson, P.O.; Erixon, O. [Vattenfall AB, Vaeroebacka (Sweden)

1995-03-01

It is well known that good control of the primary chemistry in a PWR is essential in order to minimize material problems and fuel damages. It has also been well established that the water chemistry has a great influence on accumulation of corrosion products on the fuel and the radiation build-up on primary system surfaces. Ringhals was one of the pioneers to increase operating pH in order to reduce radiation build-up and has now been operating for ten years with pH at 7.4 or (in later years) 7.2. Our experience is favourable and includes low radiation levels in the new (1989) steam generators of Ringhals 2. Ringhals 4 has operated almost its whole life at pH 7.2 or higher and it remains one of the cleanest PWRs of its vintage. In addition to strict adherence to a stable operating chemistry, Ringhals is now working on a program with the aim to find optimum shut-down and start-up chemistry to reduce activity levels in the primary systems. A particular goal is to use the shut-down and start-up chemistry at the 1994 outage in Ringhals 3 in order to reduce doserates in preparation for the planned steam generator replacement in 1995. The paper summarizes the experience to date of the established operating chemistry, on-going tests with modified shut-down and start-up chemistry and other measures to limit or reduce the activity build-up.

Efforts to control radiation build-up in Ringhals

International Nuclear Information System (INIS)

Egner, K.; Aronsson, P.O.; Erixon, O.

1995-01-01

It is well known that good control of the primary chemistry in a PWR is essential in order to minimize material problems and fuel damages. It has also been well established that the water chemistry has a great influence on accumulation of corrosion products on the fuel and the radiation build-up on primary system surfaces. Ringhals was one of the pioneers to increase operating pH in order to reduce radiation build-up and has now been operating for ten years with pH at 7.4 or (in later years) 7.2. Our experience is favourable and includes low radiation levels in the new (1989) steam generators of Ringhals 2. Ringhals 4 has operated almost its whole life at pH 7.2 or higher and it remains one of the cleanest PWRs of its vintage. In addition to strict adherence to a stable operating chemistry, Ringhals is now working on a program with the aim to find optimum shut-down and start-up chemistry to reduce activity levels in the primary systems. A particular goal is to use the shut-down and start-up chemistry at the 1994 outage in Ringhals 3 in order to reduce doserates in preparation for the planned steam generator replacement in 1995. The paper summarizes the experience to date of the established operating chemistry, on-going tests with modified shut-down and start-up chemistry and other measures to limit or reduce the activity build-up

Experimental studies on effect of Date Seed Ash (DSA) on strength properties of cement sand mortar

Science.gov (United States)

Gunarani, G. I.; Chakkravarthy, S. P.

2017-07-01

The need for alternative material for the cement is arising and being compromised by many engineering researchers. However, the growing demand and surging prices of raw materials challenges the constructional field. India, being one of the largest agricultural economy, produces a quantitative volume of agro-waste that is being dumped. In the conventional concrete production, coarse aggregate (CA) plays an important filler material. The initial study on date seed as a replacement for CA was not successful. This study primarily focuses on Date seed ash as a replacement material for ordinary Portland cement. OPC was replaced by Date Palm Seed Ash (DPSA) in the ratio up to 10% in terms of 2% interval. The main objective of this paper was to study the variation of strength properties of mortar by DPSA in specified ratio along with curing period of 3,7,14 and 28 days. The stress strain behavior has indicated a significant improvement. The overall results indicated the increase in replacing ratio, decreases the strength properties. However the physical, chemical and mechanical properties increased gradually in strength in minimal ratio.

Making a date with radiocarbon

International Nuclear Information System (INIS)

Gribbin, J.

1979-01-01

The use of 14 C dating techniques for samples of organic materials up to 50,000 years old is discussed with especial reference to adjustment necessary to take account of both the most recent figure for the 14 C half-life and also the natural fluctuations in the production of 14 C over 50,000 years. Methods of detection and the accuracy of the measurements are considered. It is hoped that future developments including both the possibility of counting 14 C ions directly using an accelerator as a mass spectrometer, and also the use of laser enrichment techniques will not only push back the radiocarbon calendar to 100,000 years but will also allow the use of much smaller samples than before. (U.K.)

Shaking Up the School House: How To Support and Sustain Educational Innovation. The Jossey-Bass Education Series.

Science.gov (United States)

Schlechty, Phillip C.

Public education is threatened as it struggles to keep up with the pace of change in American society. School systems are change prone but are not good at transforming change into improved performance. This book sheds light on why and what might be done about it. Part 1 offers an overview of the current situation in U.S. public schools and…

Radiocarbon dates to access the origin of the ice man

Energy Technology Data Exchange (ETDEWEB)

Niklaus, R [Institute of Particle Physics, ETH Zurich, Hongerberg (Switzerland); [Commonwealth Scientific and Industrial Research Organisation (CSIRO), North Ryde, NSW (Australia). Div. of Exploration Geoscience; Bonani, G [Institute of Particle Physics, ETH Zurich, Hongerberg (Switzerland); Prinoth-Fornwagner, R [Innsbruck Univ. (Austria)

1997-12-31

Different samples from the Late and Final Neolithic in Northern Italy were radiocarbon dated at the AMS Facility in Zurich, Switzerland in order to determine the origin of the Ice Man from the Hauslabjoch. The cultural classification was obtained on the basis of topological studies of the cooper axe and of the flint dagger as well as studies of artefact materials (the flint or the wood of a composite arrow), while the chronological classification of the Ice Man was obtained with the help of new and old radiocarbon dates. 9 refs., 1 tab., 2 figs.

Radiocarbon dates to access the origin of the ice man

Energy Technology Data Exchange (ETDEWEB)

Niklaus, R. [Institute of Particle Physics, ETH Zurich, Hongerberg (Switzerland)]|[Commonwealth Scientific and Industrial Research Organisation (CSIRO), North Ryde, NSW (Australia). Div. of Exploration Geoscience; Bonani, G. [Institute of Particle Physics, ETH Zurich, Hongerberg (Switzerland); Prinoth-Fornwagner, R. [Innsbruck Univ. (Austria)

1996-12-31

Different samples from the Late and Final Neolithic in Northern Italy were radiocarbon dated at the AMS Facility in Zurich, Switzerland in order to determine the origin of the Ice Man from the Hauslabjoch. The cultural classification was obtained on the basis of topological studies of the cooper axe and of the flint dagger as well as studies of artefact materials (the flint or the wood of a composite arrow), while the chronological classification of the Ice Man was obtained with the help of new and old radiocarbon dates. 9 refs., 1 tab., 2 figs.

Assessing readability of patient education materials: current role in orthopaedics.

Science.gov (United States)

Badarudeen, Sameer; Sabharwal, Sanjeev

2010-10-01

Health literacy is the single best predictor of an individual's health status. It is important to customize health-related education material to the individual patient's level of reading skills. Readability of a given text is the objective measurement of the reading skills one should possess to understand the written material. In this article, some of the commonly used readability assessment tools are discussed and guidelines to improve the comprehension of patient education handouts are provided. Where are we now? Several healthcare organizations have recommended the readability of patient education materials be no higher than sixth- to eighth-grade level. However, most of the patient education materials currently available on major orthopaedic Web sites are written at a reading level that may be too advanced for comprehension by a substantial proportion of the population. WHERE DO WE NEED TO GO?: There are several readily available and validated tools for assessing the readability of written materials. While use of audiovisual aids such as video clips, line drawings, models, and charts can enhance the comprehension of a health-related topic, standard readability tools cannot construe such enhancements. HOW DO WE GET THERE?: Given the variability in the capacity to comprehend health-related materials among individuals seeking orthopaedic care, stratifying the contents of patient education materials at different levels of complexity will likely improve health literacy and enhance patient-centered communication.

Improving the readability of online foot and ankle patient education materials.

Science.gov (United States)

Sheppard, Evan D; Hyde, Zane; Florence, Mason N; McGwin, Gerald; Kirchner, John S; Ponce, Brent A

2014-12-01

Previous studies have shown the need for improving the readability of many patient education materials to increase patient comprehension. This study's purpose was to determine the readability of foot and ankle patient education materials and to determine the extent readability can be improved. We hypothesized that the reading levels would be above the recommended guidelines and that decreasing the sentence length would also decrease the reading level of these patient educational materials. Patient education materials from online public sources were collected. The readability of these articles was assessed by a readability software program. The detailed instructions provided by the National Institutes of Health (NIH) were then used as a guideline for performing edits to help improve the readability of selected articles. The most quantitative guideline, lowering all sentences to less than 15 words, was chosen to show the effect of following the NIH recommendations. The reading levels of the sampled articles were above the sixth to seventh grade recommendations of the NIH. The MedlinePlus website, which is a part of the NIH website, had the lowest reading level (8.1). The articles edited had an average reduction of 1.41 grade levels, with the lowest reduction in the Medline articles of 0.65. Providing detailed instructions to the authors writing these patient education articles and implementing editing techniques based on previous recommendations could lead to an improvement in the readability of patient education materials. This study provides authors of patient education materials with simple editing techniques that will allow for the improvement in the readability of online patient educational materials. The improvement in readability will provide patients with more comprehendible education materials that can strengthen patient awareness of medical problems and treatments. © The Author(s) 2014.

From scrolls to Picasso: AMS radiocarbon dating applied to textiles, art works and artifacts

International Nuclear Information System (INIS)

Jull, A.J.T.; Donahue, D.J.; Beck, J.W.; Burr, G.S.; O'Malley, J.; Hewitt, L.; Biddulph, D.; Hatheway, A.L.; Lange, T.E.; Toolin, J.

1997-01-01

Full text: The use of accelerator mass spectrometry (AMS) for radiocarbon dating allows us to use very small samples of carbon, 14 C to dating of many types of textiles, including silks and linens, art works, documents and artifacts fabricated from wood, parchment, ivory and bone. For many of these types of samples, the results are often important in questions of the authenticity of these works of art and artifacts. This has encompassed a wide range of art works ranging from the Dead Sea Scrolls, the Shroud of Turin and the Chinese silk trade to the works of Raphael, Rembrandt and Picasso. Most recently, we have also dated the Vinland Map, a controversial document which shows the eastern coast of North America apparently using information from Viking voyages. An important issue in such studies is also the radiocarbon calibration curve. For some periods, most notably 1700-1950 AD we know that several changes in the 14 C composition of the atmosphere make it almost impossible to date a sample during this period more precisely than the entire range. However, before this period, we have successfully dated materials to high precision. We have also studied the use of the period l900-1950 AD for 14 C measurements and will present some examples where the rapid decline in Δ 14 C can be used to date art works. The period after 1950AD also allows us to identify works fabricated from recent materials using the 'spike' in 14 C due to atmospheric nuclear testing. This bomb 14 C has also been successfully used to identify originals from copies of works purporting to be the originals. We will discuss some artifacts, art works and forgeries, where 14 C can resolve problems of authenticity (authors)

Applying cinematic materials at geography lessons with suggestopedic educational technology

Directory of Open Access Journals (Sweden)

Вікторія Салімон

2017-09-01

Full Text Available The article describes the use of cinematic materials, especially materials from feature films as one of the best means to assimilate the information on the lessons with suggestopedic educational technology. Scientific research of this method including on geography  essons, have been analyzed. Modern pupils study, learn and grow under the influence of communication technologies, so they require a rapid response and adaptation to modern conditions, as well as other interests, a special motivation in training. Feature films, like nothing else, captivates the modern youth, so there is an opportunity to use the screen art for educational purposes and effect of the suggestopedic influence allows pupils to perceive a large amount of information. The use of cinematic materials with suggestopedic educational technology on geography lessons belongs to audiovisual learning tools, giving the opportunity to acquire different modern motivating knowledge. After analyzing suggestive teaching methods, the results of these methods application have been presented, the essence of cinematic materials use as audiovisual learning tools, especially materials from feature films, on suggestopedic lessons and feasibility of their use in the educational process have been described. The authors propose to focus on artistic learning tools or means of art, as a special type of vacated (released stimulating didactical art, that reveals the spare capacity in education and improves memorization and understanding of the studied material when using cinematic materials on geography lessons with suggestopedic educational technology. Methodical recommendations for the suggestopedic lesson using cinematic materials for the topic «Major relief forms of dry land of the Earth. Mountains» in the general geographic course have been suggested.

Communications Received from Members regarding the Export of Nuclear Material and of Certain Categories of Equipment and Other Material. Two Further Communications dated 26 September 1975

International Nuclear Information System (INIS)

1975-01-01

On 3 October 1975 the Director General received a letter from the Resident Representative of the Netherlands to the Agency transmitting two communications dated 10 September from the Minister for Foreign Affairs of Luxembourg dealing respectively with the export of nuclear material and the export of certain categories of equipment and other material. The Resident Representative requested that all Members be informed of the contents of the two communications, and they are accordingly reproduced below

From scrolls to Picasso: AMS radiocarbon dating applied to textiles, art works and artifacts

Energy Technology Data Exchange (ETDEWEB)

Jull, A.J.T.; Donahue, D.J.; Beck, J.W.; Burr, G.S.; O`Malley, J.; Hewitt, L.; Biddulph, D.; Hatheway, A.L.; Lange, T.E.; Toolin, J. [Arizona Univ., Tucson, AZ (United States). NSF Arizona Accelerator Mass Spectrometry Facility

1997-12-31

Full text: The use of accelerator mass spectrometry (AMS) for radiocarbon dating allows us to use very small samples of carbon, <1 mg. This has opened a vast array of applications of radiocarbon dating which were difficult to do before AMS, due to sample size limitations of decay counting. We have successfully applied AMS {sup 14}C to dating of many types of textiles, including silks and linens, art works, documents and artifacts fabricated from wood, parchment, ivory and bone. For many of these types of samples, the results are often important in questions of the authenticity of these works of art and artifacts. This has encompassed a wide range of art works ranging from the Dead Sea Scrolls, the Shroud of Turin and the Chinese silk trade to the works of Raphael, Rembrandt and Picasso. Most recently, we have also dated the Vinland Map, a controversial document which shows the eastern coast of North America apparently using information from Viking voyages. An important issue in such studies is also the radiocarbon calibration curve. For some periods, most notably 1700-1950 AD we know that several changes in the {sup 14}C composition of the atmosphere make it almost impossible to date a sample during this period more precisely than the entire range. However, before this period, we have successfully dated materials to high precision. We have also studied the use of the period l900-1950 AD for {sup 14}C measurements and will present some examples where the rapid decline in {Delta} {sup 14}C can be used to date art works. The period after 1950AD also allows us to identify works fabricated from recent materials using the `spike` in {sup 14}C due to atmospheric nuclear testing. This bomb {sup 14}C has also been successfully used to identify originals from copies of works purporting to be the originals. We will discuss some artifacts, art works and forgeries, where {sup 14}C can resolve problems of authenticity (authors).

SEM-EDS analysis of ancient gold leaf glass mosaic tesserae. A contribution to the dating of the materials

International Nuclear Information System (INIS)

Conventi, A; Verità, M; Neri, E

2012-01-01

Metal leaf (gold, silver or their alloys) glass tesserae began to be used in wall mosaics in the first century AD (the first examples are in Rome) and their use has been uninterrupted up to day. The metal leaf could be obtained from circulating coins, jewellery or refining. According to various techniques that have changed over the centuries, the leaf was hot fixed between two glass layers. From an archaeological point of view, it is interesting to know when and where these tesserae were made, if they were new made or if they were reused tesserae recovered from earlier dismantled mosaics. The determination of the glass composition of the tesserae is not of great help in this connection, for the same kind of glass was used over long periods. Available information is still scanter for glasses produced between the 1st to 8th centuries when the batch of raw materials (a natural soda called natron and a silica-lime sand) was melted in large tank furnaces and chunks of raw glass were transported all over the Mediterranean to be remelted and shaped into manufacts in small pot furnaces. The SEM-EDS analysis is proposed in this study as a useful tool to investigate the composition of both the glass and the gold alloy in leaf tesserae from mosaics of the 1st - 9th centuries. The comparison of the composition of the gold leaf of the tesserae with that of circulating gold coins (for which an important analytical data base is available), adds further information to the glass analysis, allowing us to improve the dating of the tesserae and increase the knowledge that may result from scientific analyses. The results demonstrate that good quantitative analyses of the metal leaf can be performed and that metal leaves made of pure gold or gold-silver alloys were used.

A Classification Scheme for Career Education Resource Materials.

Science.gov (United States)

Koontz, Ronald G.

The introductory section of the paper expresses its purpose: to devise a classification scheme for career education resource material, which will be used to develop the USOE Office of Career Education Resource Library and will be disseminated to interested State departments of education and local school districts to assist them in classifying…

Potassium-argon dating in archaeology

Energy Technology Data Exchange (ETDEWEB)

McDougall, I. (Australian National Univ., Canberra (Australia). Research School of Earth Sciences)

1990-01-01

The potassium-argon (K-Ar) isotopic dating method can provide precise and accurate numerical ages on suitable rocks, especially igneous rocks, over a wide range of age from less than 100,000 years old, with no older limit. Together with its variants, the {sup 40}Ar/{sup 39}Ar technique, the K-Ar method is very useful for the numerical age calibration of stratigraphic sequences, including those containing archaeological or fossil material, in cases where appropriate rocks for dating are present. This brief review of the basis of the K-Ar dating method and the underlying assumptions, concludes with an example of its application to the Plio-Pleistocene stratigraphic sequence in the Turkana Basin, northern Kenya. By dating alkali feldspars separated from pumice blocks in tuffaceous beds, excellent age control has been obtained for the wealth of vertebrate fossils, including hominids, as well as archaeological materials that has been found in the sequence. (author).

Standard reference materials analysis for MINT Radiocarbon Laboratory

International Nuclear Information System (INIS)

Noraishah Othman; Kamisah Alias; Nasasni Nasrul

2004-01-01

As a follow-up to the setting up of the MINT Radiocarbon Dating facility. an exercise on the IAEA standard reference materials was carried out. Radiocarbon laboratories frequently used these 8 natural samples to verify their systems. The materials were either pretreated or analysed directly to determine the activity of 14 C isotopes of the five samples expressed in % Modern (pMC) terms and to make recommendations on further use of these materials. We present the results of the five materials and discuss the analyses that were undertaken. (Author)

Quaternary dating methods

International Nuclear Information System (INIS)

Mahaney, W.C.

1984-01-01

The papers in this book cover absolute, relative and multiple dating methods, and have been written by specialists from a number of different earth sciences disciplines - their common interest being the dating of geological materials within the Quaternary. Papers on absolute dating methods discuss radiocarbon, uranium-series, potassium argon, 40 Ar/ 39 Ar, paleomagnetic, obsidian hydration, thermoluminescence, amino acid racemization, tree rings, and lichenometric techniques. Those on relative dating include discussions on various geomorphic relative age indicators such as drainage density changes, hypsometric integrals, bifurcation ratios, stream junction angles, spur morphology, hillslope geometry, and till sheet characteristics. The papers on multiple dating cite examples from the Rocky Mountains, Australia, Lake Agassiz Basin, and the Southern Andes. Also included is the panel discussion which reviews and assesses the information presented, and a field trip guide which discusses the sequences of Wisconian tills and interlayered lacustrine and fluvial sediments. (orig.)

Dating fossil opal phytoliths

International Nuclear Information System (INIS)

Lentfer, C.; Boyd, B.; Torrence, R.

1999-01-01

Full text: Opal phytoliths are microscopic silica bodies formed by the precipitation of hydrated silica dioxide (SiO 2 nH 2 0) in, around and between cell walls. They are relatively resistant to degradation in most environments and thus, can occur in large quantities in palaeosediments. Consequently, they are valuable tools for environmental reconstruction. Furthermore, phytoliths are often the only recoverable organic material in well oxidised sediments, the occluded carbon provides the opportunity for dating sediment whose ages have previously been difficult to determine, and thus, increase the potential for fine resolution determination of environmental change. This poster describes the results of an investigation assessing the viability of AMS radiocarbon dating of fossil phytolith inclusions using samples from Garua Island, West New Britain, PNG. Thirteen phytolith samples, isolated from sediments previously dated using tephrastratigraphy and C14 dating of macroremains of nutshells and wood charcoal, were used in the analysis. As a control measure, thirteen parallel samples of microscopic charcoal were also dated using AMS. The results show that the AMS dates for the microscopic charcoal samples are consistent with ages anticipated from the other dating methods, for all but one sample. However, the dates for eight of the thirteen phytolith samples are considerably younger than expected. This bias could be explained by several factors, including downwashing of phytolith through soils, bioturbation, carbon exchange through the siliceous matrix of the phytolith bodies, and contamination from extraneous sources of modern carbon retained in the samples. Research is currently focusing on the investigation of these issues and selected samples are in the process of being retreated with strong oxidising agents to clear contaminants prior to re-dating. Further to this, a full investigation of one profile with a long sequence is underway. High concentrations of

Up dating Islamic Boarding School Santri and Reproductive Health Information

Directory of Open Access Journals (Sweden)

Made Asri Budisuari

2016-06-01

Full Text Available Background: Islamic boarding school system has long story in indonesia, they covered as much 14.798 student whoare teenager between 9–15 year old. Problems encountered with adolescent sexuality and reproductive health. Methods:An explorative research implemented in 3 provinces ie East Java, Nusa Tenggara Barat (NTB, East Kalimantan and sixIslamic boarding schools. Data were collected through questionnaires about reproductive health. Results: It showed 48,5%of respondents didn’t have enough knowledge, attitudes and behavior about reproductive health, 40% of respondents knewvery little about puberty, menstruation and wet dream, 71% of respondents had little knowledge about the risk of pregnancy;49% of respondents had not enough knowledge about sexually transmited diseases. 88% respondents said that they hadfall in love, 76% of respondents had positive courtship behavior. Conclusion: The information about reproductive healthin islamic boarding school for adolescents is still in adequate and only refer to yellow book. Health worker did not provideadequqte information. We still found student who have sex while when they were engaged still datting. Suggestion: Theneed of additional and up to date reproductive health information and the risks of sexual intercourse marriage it maybedelivery on interesting media, such as one social networking. A health reproductive modules consist of scientic materialand some knowledge has to be developed and should be delivery health worker. Reproductive health syllabus and trainingfor trainers for teachers of boarding school is needed.

Prevalence of psychopathology in children of parents with mental illness and/or addiction: an up to date narrative review.

Science.gov (United States)

Leijdesdorff, Sophie; van Doesum, Karin; Popma, Arne; Klaassen, Rianne; van Amelsvoort, Therese

2017-07-01

Children of parents with a mental illness and/or addiction are at high risk for developing a mental illness themselves. Parental mental illness is highly prevalent leading to a serious number of children at high risk. The aim of this review is to give an up-to-date overview of psychopathology in children of parents with various mental illnesses and/or addiction, based on recent literature. Worldwide, 15-23% of children live with a parent with a mental illness. These children have up to 50% chance of developing a mental illness. Parental anxiety disorder sets children at a more specific risk for developing anxiety disorder themselves, where children of parents with other mental illnesses are at high risk of a large variety of mental illnesses. Although preventive interventions in children of mentally ill parents may decrease the risk of problem development by 40%; currently, these children are not automatically identified and offered help. This knowledge should encourage mental health services to address the needs of these children which requires strong collaboration between Child and Adolescent Mental Health Services and Adult Mental Health Services. Directions for further research would be to include both parents, allow for comorbidity and to look deeper into a broader variety of mental illnesses such as autism and personality disorder other than borderline.

Student's Local Top-Up Higher Education Choices

Science.gov (United States)

Agbola, Frank W.; Cheng, Calvin

2017-01-01

Making decisions about education choices is challenging and difficult for students. Utilising the theory of reasoned action, we specify and estimate a conceptual framework that captures the cognitive process of decision making of students in choosing top-up higher degrees in Hong Kong. Top-up higher or bachelor's degrees are top-up undergraduate…

In situ LA-ICPMS U–Pb dating of cassiterite without a known-age matrix-matched reference material: Examples from worldwide tin deposits spanning the Proterozoic to the Tertiary

Science.gov (United States)

Neymark, Leonid; Holm-Denoma, Christopher S.; Moscati, Richard J.

2018-01-01

Cassiterite (SnO2), a main ore mineral in tin deposits, is suitable for U–Pb isotopic dating because of its relatively high U/Pb ratios and typically low common Pb. We report a LA-ICPMS analytical procedure for U–Pb dating of this mineral with no need for an independently dated matrix-matched cassiterite standard. LA-ICPMS U-Th-Pb data were acquired while using NIST 612 glass as a primary non-matrix-matched standard. Raw data are reduced using a combination of Iolite™ and other off-line data reduction methods. Cassiterite is extremely difficult to digest, so traditional approaches in LA-ICPMS U-Pb geochronology that utilize well-characterized matrix-matched reference materials (e.g., age values determined by ID-TIMS) cannot be easily implemented. We propose a new approach for in situ LA-ICPMS dating of cassiterite, which benefits from the unique chemistry of cassiterite with extremely low Th concentrations (Th/U ratio of 10−4 or lower) in some cassiterite samples. Accordingly, it is assumed that 208Pb measured in cassiterite is mostly of non-radiogenic origin—it was initially incorporated in cassiterite during mineral formation, and can be used as a proxy for common Pb. Using 208Pb as a common Pb proxy instead of 204Pb is preferred as 204Pb is much less abundant and is also compromised by 204Hg interference during the LA-ICPMS analyses.Our procedure relies on 208Pb/206Pb vs 207Pb/206Pb (Pb-Pb) and Tera-Wasserburg 207Pb/206Pb vs 238U/206Pb (U-Pb) isochron dates that are calculated for a ~1.54 Ga low-Th cassiterite reference material with varying amounts of common Pb that we assume remained a closed U-Pb system. The difference between the NIST 612 glass normalized biased U-Pb date and the Pb-Pb age of the reference material is used to calculate a correction factor (F) for instrumental U-Pb fractionation. The correction factor (F) is then applied to measured U/Pb ratios and Tera-Wasserburg isochron dates are obtained for the unknown

An Approach to the Discussions on Education and Pedagogy: State of the Art

Directory of Open Access Journals (Sweden)

Ana Cristina León Palencia

2016-08-01

Full Text Available This reflection paper is a product of a research aimed at making a map of discussions in the field of education and pedagogy. For that purpose, it takes up again some classifications developed from concepts such as currents, trends, approaches and pedagogical traditions. Focusing on the latter and its developments —connected with the concepts of education, bildung and curriculum— a new cartography is proposed the design of a new cartography. Finally, the paper elaborates on some elements of the current discussion in Colombia and the need for new paths to bring up to date the field of pedagogical studies in the country.

The Geological Survey of Canada Radiocarbon Dating Laboratory

International Nuclear Information System (INIS)

Lowdon, J.A.

1985-01-01

The Radiocarbon Dating Laboratory of the Geological Survey of Canada began routine 14 C age determinations in 1961 using a 2 litre copper, proportional counter and CO 2 as the counting gas. This counter is operated routinely at a pressure of 2 atmospheres where the maximum dating limit is approximately 40 000 years using the 4σ criterion. In 1964 a 5 litre counter was put into operation. Routinely this counter is operated at a pressure of 1 atmosphere where its dating limit is approximately 40 000 years. When operated at 4 atmospheres its age limit increases to about 54 000 years. Organic samples are burned in a stream of oxygen and the CO 2 released is purified on passage through a series of chemicals and traps. Inorganic samples are dissolved in phosphoric acid. Up to the end of 1983 more than 3700 age determinations have been carried out on various types of sample material. Since 1963 twenty-three Geological Survey of Canada Date Lists have been published. The Laboratory also carries out a program of 14 C determinations of samples of known age for the purpose of assessing the accuracy of the method and learning more about the natural and man-made 14 C distribution and circulation in nature

Evaluation of written patient educational materials in the field of diagnostic imaging

International Nuclear Information System (INIS)

Ryhaenen, A.M.; Johansson, K.; Virtanen, H.; Salo, S.; Salanterae, S.; Leino-Kilpi, H.

2009-01-01

Aim: To evaluate the quality of written educational materials for diagnostic imaging (radiological and nuclear medicine) patients. Materials and methods: Written educational materials (n = 70) for diagnostic imaging patients were analysed. The materials were evaluated based on their external appearance (9 criteria), instructiveness (7), content (7), language and structure (8) and readability (1). Deductive content analysis was used. Quantified parts of the analyses were analysed by SAS for Windows. Dependence between criteria (32) was tested by Pearson correlation coefficients. Results: The external appearance fulfilled almost completely the criteria of good written education materials. The instructiveness was addressed clearly, except for the purpose of the material. The contents of materials dealt with bio-physiological, functional and cognitive dimensions of knowledge, while financial dimensions of knowledge were hardly dealt with at all. The language and the structure were reasonably good, but the language was partly in passive voice and the text contained strange words. Most of the education material was moderately easy to read. Conclusions: The results show that the quality of material was quite good in all dimensions. Only a small number of criteria were unsatisfactory. The results can be used to further improve written patient education materials and patient education in the imaging unit.

A Boom Time for Education Start-Ups

Science.gov (United States)

DeSantis, Nick

2012-01-01

Harsh economic realities mean trouble for college leaders. But where administrators perceive an impending crisis, investors increasingly see opportunity. In recent years, venture capitalists have poured millions into education-technology start-ups, trying to cash in on a market they see as ripe for a digital makeover. And lately, those wagers have…

Does information overload prevent chronic patients from reading self-management educational materials?

Science.gov (United States)

Liu, Chung-Feng; Kuo, Kuang-Ming

2016-05-01

Self-care management is becoming an important part of care for chronic patients. However, various kinds of self-management educational materials which government or healthcare institutions provide for patients may not achieve the expected outcome. One of the critical reasons affecting patients' use intention could be patients' perceived information overload regarding the self-management educational materials. This study proposed an extended model of the Theory of Planned Behavior (TPB), which incorporated perceived information overload, to explore if information overload will prevent chronic patients from reading educational materials for self-care management. The independent variables are attitude, subject norm, perceived behavior control and perceived information overload while the dependent variable is behavior intention to use the self-management educational materials. Perceived information overload is also referred to as an antecedent variable which may has impacts on attitude and perceived behavior control. The cross-sectional study interviewed newly diagnosed chronic patients with coronary artery disease, who are the potential users of the self-management educational materials, in a medical center in Taiwan. Data were analyzed using descriptive statistics of the basic information distribution of the respondents, and structural equation modeling to study the reliability and validity for testing hypotheses. A total of 110 respondents were enrolled in this study and successful interview data were collected from 106 respondents. The result indicates that the patients' perceived information overload of self-management educational materials was validated to have impacts on attitude and perceived behavioral control constructs of the TPB as well as contributing a direct impact on patients' intentions to use self-management educational materials. Besides, subjective norm and perceived behavioral control constructs were validated to have significant impacts on

Radiocarbon dating of iron artefacts

Energy Technology Data Exchange (ETDEWEB)

Cresswell, R. [Australian National Univ., Canberra, ACT (Australia). Dept. of Nuclear Physics

1997-12-31

Iron artefacts are generally dated by association or on stylistic grounds. This may not give a true indication of the date of manufacture, or may not be possible if the piece is out of context, ambiguous in style, or a copy. Obtaining a direct date on the artefact would be preferable. During the processes of manufacture, carbon is incorporated into the iron from the fuel source. If the fuel is of a material containing contemporaneous carbon, i.e. has an ambient radiocarbon signature, e.g. charcoal, then we may reliably radiocarbon date the artefact by extracting this carbon. Care must be taken, however, to ensure that re-working has not introduced multiple sources of carbon that would give an erroneous date. Detailed chemical analysis must precede radiocarbon analysis. Sample size is determined by carbon content, and before the advent of accelerator mass spectrometry, several tens of grams of carbon were required for radiocarbon dating (van der Merwe, 1969), prohibiting this method except for high-carbon cast-irons and bulk samples, e.g. caches of nails. AMS permits the analysis of sub-gram pieces of iron (Cresswell, 1991), thereby permitting the analysis of museum pieces with only minimal loss of material, and small fragments of iron recovered from archaeological sites. A few examples are given to illustrate these points. Paper no. 41; Extended abstract. 6 refs.

Radiocarbon dating of iron artefacts

International Nuclear Information System (INIS)

Cresswell, R.

1997-01-01

Iron artefacts are generally dated by association or on stylistic grounds. This may not give a true indication of the date of manufacture, or may not be possible if the piece is out of context, ambiguous in style, or a copy. Obtaining a direct date on the artefact would be preferable. During the processes of manufacture, carbon is incorporated into the iron from the fuel source. If the fuel is of a material containing contemporaneous carbon, i.e. has an ambient radiocarbon signature, e.g. charcoal, then we may reliably radiocarbon date the artefact by extracting this carbon. Care must be taken, however, to ensure that re-working has not introduced multiple sources of carbon that would give an erroneous date. Detailed chemical analysis must precede radiocarbon analysis. Sample size is determined by carbon content, and before the advent of accelerator mass spectrometry, several tens of grams of carbon were required for radiocarbon dating (van der Merwe, 1969), prohibiting this method except for high-carbon cast-irons and bulk samples, e.g. caches of nails. AMS permits the analysis of sub-gram pieces of iron (Cresswell, 1991), thereby permitting the analysis of museum pieces with only minimal loss of material, and small fragments of iron recovered from archaeological sites. A few examples are given to illustrate these points

Learning Things: Material Culture in Art Education

Science.gov (United States)

Blandy, Doug; Bolin, Paul E.

2018-01-01

This is the first comprehensive book to connect art education to material culture--an evolving pedagogy about the meaning of "things" in the lives of children, youth, and adults. Written by luminaries in the field, this resource explores a range of objects exemplifying material culture, defined as "the human-formed objects, spaces,…

The librarian as a member of the education department team: using web 2.0 technologies to improve access to education materials and information.

Science.gov (United States)

Egan, Laurel

2012-01-01

The part-time solo librarian at St. James Healthcare in Butte, Montana, serves physicians, staff, patients, and other health care professionals in the area. The library is part of the Education Department within the hospital's organizational structure. Recent developments have expanded the requirements of the Education Department, creating new challenges. The librarian is a member of the team developing solutions to the many ways that continuing education needs have to be met for the staff and physicians. A free website that houses education information and material is one of the projects that has been created and is maintained by the librarian.

Recommending Education Materials for Diabetic Questions Using Information Retrieval Approaches.

Science.gov (United States)

Zeng, Yuqun; Liu, Xusheng; Wang, Yanshan; Shen, Feichen; Liu, Sijia; Rastegar-Mojarad, Majid; Wang, Liwei; Liu, Hongfang

2017-10-16

Self-management is crucial to diabetes care and providing expert-vetted content for answering patients' questions is crucial in facilitating patient self-management. The aim is to investigate the use of information retrieval techniques in recommending patient education materials for diabetic questions of patients. We compared two retrieval algorithms, one based on Latent Dirichlet Allocation topic modeling (topic modeling-based model) and one based on semantic group (semantic group-based model), with the baseline retrieval models, vector space model (VSM), in recommending diabetic patient education materials to diabetic questions posted on the TuDiabetes forum. The evaluation was based on a gold standard dataset consisting of 50 randomly selected diabetic questions where the relevancy of diabetic education materials to the questions was manually assigned by two experts. The performance was assessed using precision of top-ranked documents. We retrieved 7510 diabetic questions on the forum and 144 diabetic patient educational materials from the patient education database at Mayo Clinic. The mapping rate of words in each corpus mapped to the Unified Medical Language System (UMLS) was significantly different (Pretrieval algorithms. For example, for the top-retrieved document, the precision of the topic modeling-based, semantic group-based, and VSM models was 67.0%, 62.8%, and 54.3%, respectively. This study demonstrated that topic modeling can mitigate the vocabulary difference and it achieved the best performance in recommending education materials for answering patients' questions. One direction for future work is to assess the generalizability of our findings and to extend our study to other disease areas, other patient education material resources, and online forums. ©Yuqun Zeng, Xusheng Liu, Yanshan Wang, Feichen Shen, Sijia Liu, Majid Rastegar Mojarad, Liwei Wang, Hongfang Liu. Originally published in the Journal of Medical Internet Research (http

Readability, content, and quality of online patient education materials on preeclampsia.

Science.gov (United States)

Lange, Elizabeth M S; Shah, Anuj M; Braithwaite, Brian A; You, Whitney B; Wong, Cynthia A; Grobman, William A; Toledo, Paloma

2015-01-01

The objective of this study was to evaluate the readability, content, and quality of patient education materials addressing preeclampsia. Websites of U.S. obstetrics and gynecology residency programs were searched for patient education materials. Readability, content, and quality were assessed. A one-sample t-test was used to evaluate mean readability level compared with the recommended 6th grade reading level. Mean readability levels were higher using all indices (p education materials should be improved.

Waste in Education: The Potential of Materiality and Practice

Science.gov (United States)

Jørgensen, Nanna Jordt; Madsen, Katrine Dahl; Laessøe, Jeppe

2018-01-01

This article explores how waste materials and waste practices figure in education, pointing to educational potentials of waste which have hitherto received little consideration in environmental and sustainability education practice and research. Building on empirical research on waste education in Danish schools and preschools, we discuss how an…

Disassembling the Classroom--An Ethnographic Approach to the Materiality of Education

Science.gov (United States)

Roehl, Tobias

2012-01-01

The ethnography of education is challenged by the materiality of the classroom. Ethnographic accounts of school lessons mostly highlight language and interaction and offer no suitable methodology for researching objects and their role in the classroom. Moreover, objects are part of complex and interwoven assemblages involving human actors,…

Readability of Educational Materials to Support Parent Sexual Communication With Their Children and Adolescents.

Science.gov (United States)

Ballonoff Suleiman, Ahna; Lin, Jessica S; Constantine, Norman A

2016-05-01

Sexual communication is a principal means of transmitting sexual values, expectations, and knowledge from parents to their children and adolescents. Many parents seek information and guidance to support talking with their children about sex and sexuality. Parent education materials can deliver this guidance but must use appropriate readability levels to facilitate comprehension and motivation. This study appraised the readability of educational materials to support parent sexual communication with their children. Fifty brochures, pamphlets, and booklets were analyzed using the Flesch-Kincaid, Gunning Fog, and Simple Measure of Gobbledygook (SMOG) index methods. Mean readability grade-level scores were 8.3 (range = 4.5-12.8), 9.7 (range = 5.5-14.9), and 10.1 (range = 6.7-13.9), respectively. Informed by National Institutes of Health-recommended 6th to 7th grade levels and American Medical Association-recommended 5th to 6th grade levels, percentages falling at or below the 7.0 grade level were calculated as 38%, 12%, and 2% and those falling at or below the 6.0 grade level were calculated as 12%, 2%, and 0% based on the Flesch-Kincaid, Gunning Fog, and SMOG methods, respectively. These analyses indicate that the majority of educational materials available online to support parents' communication with their children about sex and sexuality do not meet the needs of many or most parents. Efforts to improve the accessibility of these materials are warranted.

Rail Engineering and Education Symposium Materials.

Science.gov (United States)

2016-05-26

The objective of this project is to develop curricular materials for the Rail Engineering and Education : Symposia held in the summers of 2012 and 2014. : Description of Activities : The main approach to accomplish the activity is to develop and deli...

Millions Learning: Scaling up Quality Education in Developing Countries

Science.gov (United States)

Robinson, Jenny Perlman; Winthrop, Rebecca

2016-01-01

"Millions Learning: Scaling up Quality Education in Developing Countries" tells the story of where and how quality education has scaled in low- and middle-income countries. The story emerges from wide-ranging research on scaling and learning, including 14 in-depth case studies from around the globe. Ultimately, "Millions…

Examining Student Work for Evidence of Teacher Uptake of Educative Curriculum Materials

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Bismack, Amber Schultz; Arias, Anna Maria; Davis, Elizabeth A.; Palincsar, Annemarie Sullivan

2015-01-01

The purpose of this study was to identify evidence in student work of teachers' uptake of educative features in educative curriculum materials. These are features in curriculum materials designed with the specific intent of supporting teacher learning and enactment. This study was prompted by previous work on educative curriculum materials and the…

Hydrogen bonded supramolecular materials

CERN Document Server

Li, Zhan-Ting

2015-01-01

This book is an up-to-date text covering topics in utilizing hydrogen bonding for constructing functional architectures and supramolecular materials. The first chapter addresses the control of photo-induced electron and energy transfer. The second chapter summarizes the formation of nano-porous materials. The following two chapters introduce self-assembled gels, many of which exhibit unique functions. Other chapters cover the advances in supramolecular liquid crystals and the versatility of hydrogen bonding in tuning/improving the properties and performance of materials. This book is designed

Mechanics of soft materials

CERN Document Server

Volokh, Konstantin

2016-01-01

This book provides a concise introduction to soft matter modelling. It offers an up-to-date review of continuum mechanical description of soft and biological materials from the basics to the latest scientific materials. It includes multi-physics descriptions, such as chemo-, thermo-, electro- mechanical coupling. It derives from a graduate course at Technion that has been established in recent years. It presents original explanations for some standard materials and features elaborated examples on all topics throughout the text. PowerPoint lecture notes can be provided to instructors. .

Nanostructured Materials for Magnetoelectronics

CERN Document Server

Mikailzade, Faik

2013-01-01

This book provides an up-to-date review of nanometer-scale magnetism and focuses on the investigation of the basic properties of magnetic nanostructures. It describes a wide range of physical aspects together with theoretical and experimental methods. A broad overview of the latest developments in this emerging and fascinating field of nanostructured materials is given with emphasis on the practical understanding and operation of submicron devices based on nanostructured magnetic materials.

Selected Bibliography of Egyptian Educational Materials, Vol. 1, No. 2, 1975.

Science.gov (United States)

Al-Ahram Center for Scientific Translations, Cairo (Egypt).

There are 108 selected entries in this annotated bibliography of Egyptian materials on education published in 1975. Materials include journal articles, books, and government documents. The bibliography covers the following topics: adolescence, art education, child upbringing, comprehensive schools, curricula, educational change, educational aids,…

E-learning materials in mathematics education

OpenAIRE

Fajfar, Tina

2012-01-01

When studying mathematics, most pupils and students need mathematical tools, along with the teachers' explanation. The updated curriculum for mathematics in primary and secondary education also recommends using materials connected to information and communication technology. Although e-learning materials are not directly mentioned in a curricula as a tool for learning mathematics, they should, nevertheless, be considered as a tool which can be used in a class with the help of a teacher or ind...

Using Android-Based Educational Game for Learning Colloid Material

Science.gov (United States)

Sari, S.; Anjani, R.; Farida, I.; Ramdhani, M. A.

2017-09-01

This research is based on the importance of the development of student’s chemical literacy on Colloid material using Android-based educational game media. Educational game products are developed through research and development design. In the analysis phase, material analysis is performed to generate concept maps, determine chemical literacy indicators, game strategies and set game paths. In the design phase, product packaging is carried out, then validation and feasibility test are performed. Research produces educational game based on Android that has the characteristics that is: Colloid material presented in 12 levels of game in the form of questions and challenges, presents visualization of discourse, images and animation contextually to develop the process of thinking and attitude. Based on the analysis of validation and trial results, the product is considered feasible to use.

Investigating Teacher Learning Supports in High School Biology Curricular Programs to Inform the Design of Educative Curriculum Materials

Science.gov (United States)

Beyer, Carrie J.; Delgado, Cesar; Davis, Elizabeth A.; Krajcik, Joseph

2009-01-01

Reform efforts have emphasized the need to support teachers' learning about reform-oriented practices. Educative curriculum materials are one potential vehicle for promoting teacher learning about these practices. Educative curriculum materials include supports that are intended to promote both student "and" teacher learning. However, little is…

Considerations for producing re-usable and sustainable educational streaming materials

Directory of Open Access Journals (Sweden)

Gayle Calverley

2006-02-01

Full Text Available Useful lifetime of educational materials should be defined by their continuing ability to help meet defined learning objectives. More often lifetime is compromised by changes in the educational environment that do not specifically relate to the capacity of the material to assist learning. Approaches for integration of materials into the learning environment can be designed to maximise useful lifetime of materials against potential barriers created by, for example, instances of technological change. In this study, the impact of different approaches is demonstrated by examining the development of 163 learning objects, based on several licensed collections of streaming video procured for cross-sector educational use by the UK Lifesign project. Constraints relating to sustainability work within the limitations of a short-term project environment are specifically considered.

ALPHA SPECTROMETRIC EVALUATION OF SRM-995 AS A POTENTIAL URANIUM/THORIUM DOUBLE TRACER SYSTEM FOR AGE-DATING URANIUM MATERIALS

Energy Technology Data Exchange (ETDEWEB)

Beals, D.

2011-12-06

Uranium-233 (t{sub 1/2} {approx} 1.59E5 years) is an artificial, fissile isotope of uranium that has significant importance in nuclear forensics. The isotope provides a unique signature in determining the origin and provenance of uranium-bearing materials and is valuable as a mass spectrometric tracer. Alpha spectrometry was employed in the critical evaluation of a {sup 233}U standard reference material (SRM-995) as a dual tracer system based on the in-growth of {sup 229}Th (t{sub 1/2} {approx} 7.34E3 years) for {approx}35 years following radiochemical purification. Preliminary investigations focused on the isotopic analysis of standards and unmodified fractions of SRM-995; all samples were separated and purified using a multi-column anion-exchange scheme. The {sup 229}Th/{sup 233}U atom ratio for SRM-995 was found to be 1.598E-4 ({+-} 4.50%) using recovery-corrected radiochemical methods. Using the Bateman equations and relevant half-lives, this ratio reflects a material that was purified {approx} 36.8 years prior to this analysis. The calculated age is discussed in contrast with both the date of certification and the recorded date of last purification.

Optimization of Composite Material System and Lay-up to Achieve Minimum Weight Pressure Vessel

Science.gov (United States)

Mian, Haris Hameed; Wang, Gang; Dar, Uzair Ahmed; Zhang, Weihong

2013-10-01

The use of composite pressure vessels particularly in the aerospace industry is escalating rapidly because of their superiority in directional strength and colossal weight advantage. The present work elucidates the procedure to optimize the lay-up for composite pressure vessel using finite element analysis and calculate the relative weight saving compared with the reference metallic pressure vessel. The determination of proper fiber orientation and laminate thickness is very important to decrease manufacturing difficulties and increase structural efficiency. In the present work different lay-up sequences for laminates including, cross-ply [ 0 m /90 n ] s , angle-ply [ ±θ] ns , [ 90/±θ] ns and [ 0/±θ] ns , are analyzed. The lay-up sequence, orientation and laminate thickness (number of layers) are optimized for three candidate composite materials S-glass/epoxy, Kevlar/epoxy and Carbon/epoxy. Finite element analysis of composite pressure vessel is performed by using commercial finite element code ANSYS and utilizing the capabilities of ANSYS Parametric Design Language and Design Optimization module to automate the process of optimization. For verification, a code is developed in MATLAB based on classical lamination theory; incorporating Tsai-Wu failure criterion for first-ply failure (FPF). The results of the MATLAB code shows its effectiveness in theoretical prediction of first-ply failure strengths of laminated composite pressure vessels and close agreement with the FEA results. The optimization results shows that for all the composite material systems considered, the angle-ply [ ±θ] ns is the optimum lay-up. For given fixed ply thickness the total thickness of laminate is obtained resulting in factor of safety slightly higher than two. Both Carbon/epoxy and Kevlar/Epoxy resulted in approximately same laminate thickness and considerable percentage of weight saving, but S-glass/epoxy resulted in weight increment.

May 14C be used to date contemporary art?

International Nuclear Information System (INIS)

Fedi, M.E.; Caforio, L.; Mandò, P.A.; Petrucci, F.; Taccetti, F.

2013-01-01

The use of radiocarbon in forensics is by now widespread, thanks to the so-called bomb peak, which makes it possible to perform high-precision dating. Since 1955, 14 C concentration in the atmosphere had strongly increased due to nuclear explosions, reaching its maximum value in 1963–1965. After the Nuclear Test Ban Treaty, 14 C started to decrease as a consequence of the exchanges between atmosphere and the other natural carbon reservoirs. Nowadays, it is still slightly above the pre-bomb value. The work presented in this paper is based on the idea of exploiting the bomb peak to “precisely” date works of contemporary art, with the aim at identifying possible fakes. We analysed two kinds of materials from the 20th century: newspapers and painting canvases. Newspaper samples were taken because they might in principle be considered to represent dated samples (considering the date on the issues). Our data (28 samples) show a trend similar to atmospheric data in the literature, although with some differences; the paper peak is flatter and shifted towards more recent years (about five years) with respect to the atmospheric data. This can be explained by taking paper manufacturing processes into account. As to the canvas samples, the measured 14 C concentrations were generally reasonably consistent with the expected concentrations (based on the year on the paintings). However, this does not indicate that the interpretation of the results is simpler and more straightforward. Obviously, we only measure the 14 C concentration of the fibre used for the canvas, which does not necessarily measure the date the painting was manufactured. In this paper, sample preparation and experimental results will be discussed, in order to show the potential as well as the limitations of radiocarbon to date contemporary art.

Digital resources and low cost of teaching materials for astronomical education

Science.gov (United States)

Paladino, L.; Voelzke, M. R.

2017-12-01

This work presents the results of the application of two questionnaires about Astronomical concepts in three classes in the first year High School of a public school in the periphery of São Paulo. In the first questionnaire was verified the prior knowledge of students. Then the intervention strategies were carried out: use of digital resources of the school, construction of mock-ups using low cost materials and the use of educational books, such as Couper & Henbest (1997), Horvath (2008). After four months, the second questionnaire was applied to verify the occurence of meaningful learning.

Dissemination of CPR video self-instruction materials to secondary trainees: results from a hospital-based CPR education trial

Science.gov (United States)

Ikeda, Daniel J.; Buckler, David G.; Li, Jiaqi; Agarwal, Amit K.; Di Taranti, Laura J.; Kurtz, James; dos Reis, Ryan; Leary, Marion; Abella, Benjamin S.; Blewer, Audrey L.

2016-01-01

Background Cardiopulmonary resuscitation (CPR) video self-instruction (VSI) materials have been promoted as a scalable approach to increase the prevalence of CPR skills among the lay public, in part due to the opportunity for secondary training (i.e., sharing of training materials). However, the motivations for, and barriers to, disseminating VSI materials to secondary trainees is poorly understood. Methods This work represents an ancillary investigation of a prospective hospital-based CPR education trial in which family members of cardiac patients were trained using VSI. Mixed-methods surveys were administered to primary trainees six months after initial enrollment. Surveys were designed to capture motivations for, and barriers to, sharing VSI materials, the number of secondary trainees with whom materials were shared, and the settings, timing, and recipients of trainings. Results Between 07/2012–05/2015, 653 study participants completed a six-month follow-up interview. Of those, 345 reported sharing VSI materials with 1455 secondary trainees. Materials were shared most commonly with family members. In a logistic regression analysis, participants in the oldest quartile (age > 63 years) were less likely to share materials compared to those in the youngest quartile (age ≤ 44 years, OR 0.58, CI 0.37–0.90, p=0.02). Among the 308 participants who did not share their materials, time constraints was the most commonly cited barrier for not sharing. Conclusions VSI materials represent a strategy for secondary dissemination of CPR training, yet older individuals have a lower likelihood of sharing relative to younger individuals. Further work is warranted to remedy perceived barriers to CPR dissemination among the lay public using VSI approaches. PMID:26776900

A Modular Approach to Integrating Biofuels Education into ChE Curriculum Part I--Learning Materials

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He, Q. Peter; Wang, Jin; Zhang, Rong; Johnson, Donald; Knight, Andrew; Polala, Ravali

2016-01-01

In view of potential demand for skilled engineers and competent researchers in the biofuels field, we have identified a significant gap between advanced biofuels research and undergraduate biofuels education in chemical engineering. To help bridge this gap, we created educational materials that systematically integrate biofuels technologies into…

Analysis of the readability of patient education materials from surgical subspecialties.

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Hansberry, David R; Agarwal, Nitin; Shah, Ravi; Schmitt, Paul J; Baredes, Soly; Setzen, Michael; Carmel, Peter W; Prestigiacomo, Charles J; Liu, James K; Eloy, Jean Anderson

2014-02-01

Patients are increasingly using the Internet as a source of information on medical conditions. Because the average American adult reads at a 7th- to 8th-grade level, the National Institutes of Health recommend that patient education material be written between a 4th- and 6th-grade level. In this study, we assess and compare the readability of patient education materials on major surgical subspecialty Web sites relative to otolaryngology. Descriptive and correlational design. Patient education materials from 14 major surgical subspecialty Web sites (American Society of Colon and Rectal Surgeons, American Association of Endocrine Surgeons, American Society of General Surgeons, American Society for Metabolic and Bariatric Surgery, American Association of Neurological Surgeons, American Congress of Obstetricians and Gynecologists, American Academy of Ophthalmology, American Academy of Orthopedic Surgeons, American Academy of Otolaryngology-Head and Neck Surgery, American Pediatric Surgical Association, American Society of Plastic Surgeons, Society for Thoracic Surgeons, and American Urological Association) were downloaded and assessed for their level of readability using 10 widely accepted readability scales. The readability level of patient education material from all surgical subspecialties was uniformly too high. Average readability levels across all subspecialties ranged from the 10th- to 15th-grade level. Otolaryngology and other surgical subspecialties Web sites have patient education material written at an education level that the average American may not be able to understand. To reach a broader population of patients, it might be necessary to rewrite patient education material at a more appropriate level. N/A. © 2013 The American Laryngological, Rhinological and Otological Society, Inc.

Mediating Education Policy: Making up the "Anti-Politics" of Third-Sector Participation in Public Education

Science.gov (United States)

Williamson, Ben

2014-01-01

This article examines the participation of "third-sector" organisations in public education in England. These organisations act as a cross-sectoral policy network made up of new kinds of policy experts: mediators and brokers with entrepreneurial careers in ideas. They have sought to make education reform thinkable, intelligible and…

Regularities of radiation defects build up on oxide materials surface

International Nuclear Information System (INIS)

Bitenbaev, M.I.; Polyakov, A.I.; Tuseev, T.

2005-01-01

Analysis of experimental data by radiation defects study on different oxide elements (silicon, beryllium, aluminium, rare earth elements) irradiated by the photo-, gamma-, neutron-, alpha- radiation, protons and helium ions show, that gas adsorption process on the surface centers and radiation defects build up in metal oxide correlated between themselves. These processes were described by the equivalent kinetic equations for analysis of radiation defects build up in the different metal oxides. It was revealed in the result of the analysis: number of radiation defects are droningly increasing up to limit value with the treatment temperature growth. Constant of radicals death at ionizing radiation increases as well. Amount of surface defects in different oxides defining absorbing activity of these materials looks as: silicon oxide→beryllium oxide→aluminium oxide. So it was found, that most optimal material for absorbing system preparation is silicon oxide by it power intensity and berylium oxide by it adsorption efficiency

Quasi-appropriation of dialectical materialism: a critical reading of Marxism in Vygotskian approaches to cultural studies in science education

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Rodrigues, André; Camillo, Juliano; Mattos, Cristiano

2014-09-01

In this review essay we examine five categories of dialectical materialism proposed by Paulo Lima Junior, Fernanda Ostermann, and Flavia Rezende in their study of the extent to which the articles published in Cultural Studies of Science Education, that use a Vygotskian approach, are committed to Marxism/dialectical materialism. By closely examining these categories ("thesis, antithesis and synthesis," "unity of analysis," "History," "revolution," "materialism") we expect to enrich the general discussion about the possible contributions of Marxism to science education. We perceive part of science education practice as orientating toward positivism, which reduces human beings—teachers, learners and researchers—to isolated individuals who construct knowledge by themselves. The very same approach aggravates the inner contradiction of the capitalist society demanding commitments from researchers to continually build innovative science education from human praxis. Nevertheless, it is necessary to situate ourselves beyond a formal commitment with dialectical materialism and hence reach the heart of this method. Besides understanding the researchers' commitments, we question the extent to which the respective research helps to radically refresh the current view on science, science education practice, and research in science education.

Teaching Environmental Education to Wisconsin Teachers: A Review of University Course Materials.

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Sanera, Michael

1997-01-01

This report contains a study done at the request of the Wisconsin Policy Research Institute, which studies public policy issues affecting the state of Wisconsin. The purpose of this study was to examine the content of environmental education (EE) materials used in courses required for teacher certification in Wisconsin to see if the knowledge and…

Data cultures of mobile dating and hook-up apps: Emerging issues for critical social science research

Directory of Open Access Journals (Sweden)

Kath Albury

2017-07-01

Full Text Available The ethical and social implications of data mining, algorithmic curation and automation in the context of social media have been of heightened concern for a range of researchers with interests in digital media in recent years, with particular concerns about privacy arising in the context of mobile and locative media. Despite their wide adoption and economic importance, mobile dating apps have received little scholarly attention from this perspective – but they are intense sites of data generation, algorithmic processing, and cross-platform data-sharing; bound up with competing cultures of production, exploitation and use. In this paper, we describe the ways various forms of data are incorporated into, and emerge from, hook-up apps’ business logics, socio-technical arrangements, and cultures of use to produce multiple and intersecting data cultures . We propose a multi-layered research agenda for critical and empirical inquiry into this field, and suggest appropriate conceptual and methodological frameworks for exploring the social and political challenges of data cultures.

Specialists training on nuclear materials control, accounting and physical protection in the Moscow Engineering Physics Institute

International Nuclear Information System (INIS)

Khromov, V.V.; Pogozhin, N.S.; Kryuchkov, E.F.; Glebov, V.B.; Geraskin, N.I.

1998-01-01

Educational program to train specialists on non-proliferation problems and nuclear materials control, accounting and physical protection systems (NMCA and PP) at the Science Master's level was developed and is being realized in Moscow Sate Institute of Engineering and Physics at the support of the USA Ministry of Energy. The program is intended to train students who already got the Bachelor's degree on physical and technical subjects. The United methodological base of the program comprises lecture courses, practice in laboratories and computer programs. The educational program contains the following parts for training the students. 1) Deep scientific and technical knowledge. 2) System approach to designing and analysis of the NMCA and PP systems. 3) Knowledge of scientific and technical principles, means, devices and procedures used in the NMCA and PP systems. 4) Judicial, international and economical aspects of nuclear materials management. 5) Application of computer and information technologies for nuclear materials control and accounting. 6) Extensive practice in laboratories, using the most up-to-date equipment and devices used in the worldwide practice of NM control

Tackling health literacy: adaptation of public hypertension educational materials for an Indo-Asian population in Canada.

Science.gov (United States)

Jones, Charlotte A; Mawani, Shefina; King, Kathryn M; Allu, Selina Omar; Smith, Megan; Mohan, Sailesh; Campbell, Norman R C

2011-01-11

Indo-Asians in Canada are at increased risk for cardiovascular diseases. There is a need for cultural and language specific educational materials relating to this risk. During this project we developed and field tested the acceptability of a hypertension public education pamphlet tailored to fit the needs of an at risk local Indo-Asian population, in Calgary, Alberta, Canada. A community health board representing Calgary's Indo-Asian communities identified the culturally specific educational needs and language preferences of the local population. An adaptation of an existing English language Canadian Public Hypertension Recommendations pamphlet was created considering the literacy and translation challenges. The adapted pamphlet was translated into four Indo-Asian languages. The adapted pamphlets were disseminated as part of the initial educational component of a community-based culturally and language-sensitive cardiovascular risk factor screening and management program. Field testing of the materials was undertaken when participants returned for program follow-up seven to 12 months later. Fifty-nine English-speaking participants evaluated and confirmed the concept validity of the English adapted version. 28 non-English speaking participants evaluated the Gujarati (N = 13) and Punjabi (N = 15) translated versions of the adapted pamphlets. All participants found the pamphlets acceptable and felt they had improved their understanding of hypertension. Involving the target community to identify health issues as well as help to create culturally, language and literacy sensitive health education materials ensures resources are highly acceptable to that community. Minor changes to the materials will be needed prior to formal testing of hypertension knowledge and health decision-making on a larger scale within this at risk community.

The Scottish school leavers cohort: linkage of education data to routinely collected records for mortality, hospital discharge and offspring birth characteristics.

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Stewart, Catherine H; Dundas, Ruth; Leyland, Alastair H

2017-07-10

The Scottish school leavers cohort provides population-wide prospective follow-up of local authority secondary school leavers in Scotland through linkage of comprehensive education data with hospital and mortality records. It considers educational attainment as a proxy for socioeconomic position in young adulthood and enables the study of associations and causal relationships between educational attainment and health outcomes in young adulthood. Education data for 284 621 individuals who left a local authority secondary school during 2006/2007-2010/2011 were linked with birth, death and hospital records, including general/acute and mental health inpatient and day case records. Individuals were followed up from date of school leaving until September 2012. Age range during follow-up was 15 years to 24 years. Education data included all formal school qualifications attained by date of school leaving; sociodemographic information; indicators of student needs, educational or non-educational support received and special school unit attendance; attendance, absence and exclusions over time and school leaver destination. Area-based measures of school and home deprivation were provided. Health data included dates of admission/discharge from hospital; principal/secondary diagnoses; maternal-related, birth-related and baby-related variables and, where relevant, date and cause of death. This paper presents crude rates for all-cause and cause-specific deaths and general/acute and psychiatric hospital admissions as well as birth outcomes for children of female cohort members. This study is the first in Scotland to link education and health data for the population of local authority secondary school leavers and provides access to a large, representative cohort with the ability to study rare health outcomes. There is the potential to study health outcomes over the life course through linkage with future hospital and death records for cohort members. The cohort may also be

Readability of Spine-Related Patient Education Materials From Leading Orthopedic Academic Centers.

Science.gov (United States)

Ryu, Justine H; Yi, Paul H

2016-05-01

Cross-sectional analysis of online spine-related patient education materials from leading academic centers. To assess the readability levels of spine surgery-related patient education materials available on the websites of academic orthopedic surgery departments. The Internet is becoming an increasingly popular resource for patient education. Yet many previous studies have found that Internet-based orthopedic-related patient education materials from subspecialty societies are written at a level too difficult for the average American; however, no prior study has assessed the readability of spine surgery-related patient educational materials from leading academic centers. All spine surgery-related articles from the online patient education libraries of the top five US News & World Report-ranked orthopedic institutions were assessed for readability using the Flesch-Kincaid (FK) readability test. Mean readability levels of articles amongst the five academic institutions and articles were compared. We also determined the number of articles with readability levels at or below the recommended sixth- or eight-grade levels. Intraobserver and interobserver reliability of readability assessment were assessed. A total of 122 articles were reviewed. The mean overall FK grade level was 11.4; the difference in mean FK grade level between each department varied significantly (range, 9.3-13.4; P Online patient education materials related to spine from academic orthopedic centers are written at a level too high for the average patient, consistent with spine surgery-related patient education materials provided by the American Academy of Orthopaedic Surgeons and spine subspecialty societies. This study highlights the potential difficulties patients might have in reading and comprehending the information in publicly available education materials related to spine. N/A.

Internet-Based Assessment of Oncology Health Care Professional Learning Style and Optimization of Materials for Web-Based Learning: Controlled Trial With Concealed Allocation.

Science.gov (United States)

Micheel, Christine M; Anderson, Ingrid A; Lee, Patricia; Chen, Sheau-Chiann; Justiss, Katy; Giuse, Nunzia B; Ye, Fei; Kusnoor, Sheila V; Levy, Mia A

2017-07-25

Precision medicine has resulted in increasing complexity in the treatment of cancer. Web-based educational materials can help address the needs of oncology health care professionals seeking to understand up-to-date treatment strategies. This study aimed to assess learning styles of oncology health care professionals and to determine whether learning style-tailored educational materials lead to enhanced learning. In all, 21,465 oncology health care professionals were invited by email to participate in the fully automated, parallel group study. Enrollment and follow-up occurred between July 13 and September 7, 2015. Self-enrolled participants took a learning style survey and were assigned to the intervention or control arm using concealed alternating allocation. Participants in the intervention group viewed educational materials consistent with their preferences for learning (reading, listening, and/or watching); participants in the control group viewed educational materials typical of the My Cancer Genome website. Educational materials covered the topic of treatment of metastatic estrogen receptor-positive (ER+) breast cancer using cyclin-dependent kinases 4/6 (CDK4/6) inhibitors. Participant knowledge was assessed immediately before (pretest), immediately after (posttest), and 2 weeks after (follow-up test) review of the educational materials. Study statisticians were blinded to group assignment. A total of 751 participants enrolled in the study. Of these, 367 (48.9%) were allocated to the intervention arm and 384 (51.1%) were allocated to the control arm. Of those allocated to the intervention arm, 256 (69.8%) completed all assessments. Of those allocated to the control arm, 296 (77.1%) completed all assessments. An additional 12 participants were deemed ineligible and one withdrew. Of the 552 participants, 438 (79.3%) self-identified as multimodal learners. The intervention arm showed greater improvement in posttest score compared to the control group (0.4 points

The effects of moms and teens for safe dates: a dating abuse prevention program for adolescents exposed to domestic violence.

Science.gov (United States)

Foshee, Vangie A; Benefield, Thad; Dixon, Kimberly S; Chang, Ling-Yin; Senkomago, Virginia; Ennett, Susan T; Moracco, Kathryn E; Michael Bowling, J

2015-05-01

Adolescents exposed to domestic violence are at high risk for dating abuse. This randomized controlled trial evaluated a dating abuse prevention program designed specifically for this risk group. Moms and Teens for Safe Dates consisted of six mailed booklets of dating abuse prevention information and interactive activities. Mothers who had been victims of domestic violence but no longer lived with the abuser delivered the program to their adolescents who had been exposed to the abuse. Mother and adolescent pairs (N = 409) were recruited through community advertising; the adolescents ranged from 12 to 16 years old and 64 % were female. Mothers and adolescents completed baseline and 6-month follow-up telephone interviews. Booklet completion in the treatment group ranged from 80 % for the first to 62 % for the last booklet. The analyses first tested whether program effects on dating abuse varied by four a priori identified moderators (mother's psychological health, the amount of adolescent exposure to domestic violence, and adolescent sex and race/ethnicity). Main effects of the program were examined when there were no differential program effects. Program effects on psychological and physical victimization and psychological and cyber perpetration were moderated by the amount of adolescent exposure to domestic violence; there were significant favorable program effects for adolescents with higher, but not lower levels of exposure to domestic violence. There were no moderated or main effects on sexual violence victimization and perpetration or cyber victimization. The findings suggest that a dating abuse prevention program designed for adolescents exposed to domestic violence can have important positive effects.

Educating women about congenital cytomegalovirus: assessment of health education materials through a web-based survey.

Science.gov (United States)

Price, Simani M; Bonilla, Erika; Zador, Paul; Levis, Denise M; Kilgo, Christina L; Cannon, Michael J

2014-11-30

Congenital cytomegalovirus (CMV) is the most common congenital infection in the U.S. and can result in permanent disabilities, such as hearing and vision loss, intellectual disability, and psychomotor and language impairments. Women can adopt prevention behaviors in an attempt to reduce their exposure to CMV. Currently, few women are familiar with CMV. To increase awareness of CMV, the Centers for Disease Control and Prevention (CDC) developed draft health education materials. The purpose of this study was to pilot test two health education materials to gauge their appeal and to determine if they increase knowledge about CMV and motivate audiences to seek additional information on CMV and adopt CMV prevention behaviors. African-American (n = 404) and Caucasian women (n = 405), who had a young child and were either pregnant or planning a pregnancy, were recruited to participate in a 15-minute web survey. Participants were randomly assigned to view one of two CMV health education materials, either a factsheet or video. Pre and post survey measures were used to assess changes in knowledge of CMV and motivation to adopt prevention behaviors. We also examined audience preferences regarding materials and motivation. CMV knowledge score increased significantly after presentation of either the video or factsheet (from 3.7 out of 10 to 9.1 out of 10, p knowledge score, and viewing the video (vs. factsheet) were significantly positively associated with increased support for CMV prevention behaviors. Overall, we found that the health education materials improved women's knowledge of CMV and encouraged them to adopt prevention behaviors. Given the low awareness levels among women currently, these findings suggest that appropriate education materials have the potential to greatly increase knowledge of CMV. As women become more knowledgeable about CMV and transmission routes, we expect they will be more likely to adopt prevention behaviors, thereby reducing their risk of

UP TO DATE ANTIPLATELET THERAPY IN PATIENTS WITH HIGH RISK OF THROMBOTIC EVENTS AND REAL CLINICAL PRACTICE

Directory of Open Access Journals (Sweden)

S. Yu. Martsevich

2012-01-01

Full Text Available Aim. To assess the real rate of dual antiplatelet therapy (DAT, acetylsalicylic acid + clopidogrel use in patients having appropriate indications according to current clinical guidelines and to study the possibility of prescription rate improvement by education activity directed to doctors. Material and methods. The study consisted of 3 parts. Parts I and II present the results of two questionnaire surveys of patients with acute myocardial infarction, or stenting, who needed in DAT according to current clinical guidelines. The real use of the DAT was assessed in part III on the basis of the multicenter study conducted in different regions of Russia (ROMB study in a large sample of patients having DAT indications. Results. Part I - PROGNOZ-IBS study. According to the questionnaire survey only 112 out of 239 patients (47% having an absolute indications, received DOT. Part II - phone survey of patients with acute myocardial infarction in two towns of Lyubertsy and Podolsk. 28 of 71 patients (39% took the DAT (from some days to 6 months and 35 patients (49% — did not take it. Part III - ROMB study. 519 patients did not take DAT, at that 259 (50% in hospital and 260 (50% - in out-patient clinic. 521 patients took DAT according to indications, at that 238 (46% in hospital and 283 (54% - in out-patient clinic. Conclusion. Less than 50% of patients, having direct indications, received DAT in the real clinical practice. The prescription rate can be improved due to education activity directed to doctors and increase in clopidogrel drugs affordability.

Genetic comparisons of Egyptian date palm cultivars (Phoenix ...

African Journals Online (AJOL)

Random amplified polymorphic DNA technique was used to compare genetic material from four females date palm and four unknown male trees of Egyptian date palm. The genetic similarity between the four females date palm (Zaghloul, Amhat, Samany and Siwi) ranged from 87.5 to 98.9%. The banding profiles obtained ...

The Efficacy of Educative Curriculum Materials to Support Geospatial Science Pedagogical Content Knowledge

Science.gov (United States)

Bodzin, Alec; Peffer, Tamara; Kulo, Violet

2012-01-01

Teaching and learning about geospatial aspects of energy resource issues requires that science teachers apply effective science pedagogical approaches to implement geospatial technologies into classroom instruction. To address this need, we designed educative curriculum materials as an integral part of a comprehensive middle school energy…

Direct dating of human fossils.

Science.gov (United States)

Grün, Rainer

2006-01-01

The methods that can be used for the direct dating of human remains comprise of radiocarbon, U-series, electron spin resonance (ESR), and amino acid racemization (AAR). This review gives an introduction to these methods in the context of dating human bones and teeth. Recent advances in ultrafiltration techniques have expanded the dating range of radiocarbon. It now seems feasible to reliably date bones up to 55,000 years. New developments in laser ablation mass spectrometry permit the in situ analysis of U-series isotopes, thus providing a rapid and virtually non-destructive dating method back to about 300,000 years. This is of particular importance when used in conjunction with non-destructive ESR analysis. New approaches in AAR analysis may lead to a renaissance of this method. The potential and present limitations of these direct dating techniques are discussed for sites relevant to the reconstruction of modern human evolution, including Florisbad, Border Cave, Tabun, Skhul, Qafzeh, Vindija, Banyoles, and Lake Mungo. (c) 2006 Wiley-Liss, Inc.

Teleconferences and Audiovisual Materials in Earth Science Education

Science.gov (United States)

Cortina, L. M.

2007-05-01

Unidad de Educacion Continua y a Distancia, Universidad Nacional Autonoma de Mexico, Coyoaca 04510 Mexico, MEXICO As stated in the special session description, 21st century undergraduate education has access to resources/experiences that go beyond university classrooms. However in some cases, resources may go largely unused and a number of factors may be cited such as logistic problems, restricted internet and telecommunication service access, miss-information, etc. We present and comment on our efforts and experiences at the National University of Mexico in a new unit dedicated to teleconferences and audio-visual materials. The unit forms part of the geosciences institutes, located in the central UNAM campus and campuses in other States. The use of teleconference in formal graduate and undergraduate education allows teachers and lecturers to distribute course material as in classrooms. Course by teleconference requires learning and student and teacher effort without physical contact, but they have access to multimedia available to support their exhibition. Well selected multimedia material allows the students to identify and recognize digital information to aid understanding natural phenomena integral to Earth Sciences. Cooperation with international partnerships providing access to new materials and experiences and to field practices will greatly add to our efforts. We will present specific examples of the experiences that we have at the Earth Sciences Postgraduate Program of UNAM with the use of technology in the education in geosciences.

Luminescence dating in archaeology

International Nuclear Information System (INIS)

Wintle, A.G.

2001-01-01

Thermoluminescence (TL) dating is routinely applied to burnt lithic material. Simple fires are capable of enabling stones weighing a few hundred grams to reach 450 o C, thus zeroing the TL signal. TL dates have been obtained for Upper and Lower Paleolithic sites in Europe and the Near East. TL dating continues to be used for dating pottery and for authentification of ceramic works of art. Some recent studies report the use of optically stimulated luminescence (OSL) (also know as photoluminescence) for dating very small samples of quartz, e.g. from small pieces of pottery or frm metallurgical slag The major recent advance has been in the development of a reliable laboratory procedure for using the OSL signal from quartz to obtain the past radiation exposure. The quartz OSL signal is extremely sensitive to light and is reduced to a negligible level on exposure to direct sunlight for radionuclides during burial, signal to date san.sized quartz grains extracted from sediments, The OSL signal is stimulated by 470 nm light from emitting diodes and the detected using flirters centred on 340 nm A similar signal can be obtained from feldspar grain when are exposed to infrared wavelengths around 880 nm. The infrared stimulated luminescence (IRSL) signals is also rapidly depleted by exposure to sunlight, and dating of colluvial deposits from archaeological sites has been reported

Astronomy education through interactive materials

Science.gov (United States)

Voelzke, Marcos Rincon; Antunes de Macêdo, Josué

2015-08-01

This study presents results of a survey conducted at the Federal Institution of Education, Science and Technology in the North of Minas Gerais (IFNMG), and aimed to investigate the potentialities of the use of interactive materials in the teaching of astronomy. An advanced training course with involved learning activities about basic concepts of astronomy was offered to thirty-two Licenciate students in Physics, Mathematics and Biological Sciences, using the mixed methodology, combined with the three pedagogical moments. Among other aspects, the viability of the use of resources was noticed, involving digital technologies and interactive materials on teaching of astronomy, which may contribute to the broadening of methodological options for future teachers and meet their training needs.

Blended learning in health education: three case studies

NARCIS (Netherlands)

de Jong, N.; Savin-Baden, M.; Cunningham, A.M.; Verstegen, D.M.L.

2014-01-01

Blended learning in which online education is combined with face-to-face education is especially useful for (future) health care professionals who need to keep up-to-date. Blended learning can make learning more efficient, for instance by removing barriers of time and distance. In the past

Education and training in nuclear materials

International Nuclear Information System (INIS)

Falcon, S.; Marco, M.

2014-01-01

CIEMAT participates in the European project Matisse (Materials Innovations for a Safe and Sustainable nuclear in Europe) belonging to FP7, whose main objective is to promote the link between the respective national research programs through networking and integration of activities for innovation in materials for advanced nuclear systems, sharing among partners best practices and implementation of training tools and efficient communication. The draft four years, from 2013 to 2017, includes aspects such as the interaction between infrastructure, R and D programs and postgraduate education and training. (Author)

IRMM-1000a and IRMM-1000b. Uranium reference materials certified for the production date based on the 230Th/234U radiochronometer. Part II. Certification

International Nuclear Information System (INIS)

Venchiarutti, C.; Richter, S.; Jakopic, R.; Aregbe, Y.; Varga, Z.; Nicholl, A.; Krajko, J.; Mayer, K.

2016-01-01

The IRMM-1000a and IRMM-1000b uranium reference materials, of 20 and 50 mg uranium, respectively, were produced by the European Commission Joint Research Centre's Institute for Reference Materials and Measurements (EC-JRC-IRMM) in collaboration with the Institute for Transuranium Elements (EC-JRC-ITU). They are novel uranium reference materials certified for the production date based on the 230 Th/ 234 U radiochronometer, i.e. the date of the last chemical separation of these two radionuclides. The certified reference value and its uncertainty, homogeneity and stability of the material were established in accordance with the ISO Guide 34:2009 and the 'Guide to the Expression of Uncertainty in Measurement'. (author)

Educating the next generation of atmospheric scientists within a European Network of Excellence

Science.gov (United States)

Schuepbach, E.; Uherek, E.; Ladstätter-Weissenmayer, A.; Jacob, M. J.

In order to promote the next generation of atmospheric scientists, the task Training and Education (T&E) in ACCENT, the European Network of Excellence in Atmospheric Composition Change ( www.accent-network.org) has developed and implemented an Integrated Learning Environment (ILE). For school teachers and their students, the Internet-based "Global Change Magazine" provides up-to-date and freely accessible scientific material in English and five other languages. Additionally, T&E has produced online teaching material for early-career scientists. These e-learning modules are now being used in University Master's courses across Europe. T&E also organised training events for early-career scientists, combining scientific content with development in transferable skills, to focus on interdisciplinary collaboration, interaction with senior scientists, communication with stakeholders, and dissemination to the general public. Evaluation based on participant feedback evidences the effectiveness of these events, e.g., in terms of motivation to remain in the field. Methodologies and materials from T&E are being published in a Handbook on Best Practice, intended for both educators and scientists around the globe who are involved in education in the field of air quality and climate change science.

Selected Bibliography of Egyptian Educational Materials, Vol. 3, No. 1, 1977.

Science.gov (United States)

Al-Ahram Center for Scientific Translations, Cairo (Egypt).

This annotated bibliography lists 135 selected educational materials from Egypt covering the period 1976-1977. The materials are drawn from a variety of Egyptian newspapers, journals, government publications, and university research reports. The entries are organized into 55 categories, including Adolescence; Adult Education; Art Education; Basic…

Strategic Alliances in Education: The Knowledge Engineering Web

Science.gov (United States)

Westera, Wim; van den Herik, Jaap; van de Vrie, Evert

2004-01-01

The field of higher education shows a jumble of alliances between fellow institutes. The alliances are strategic in kind and serve an economy-of-scales concept. A large scale is a prerequisite for allocating the budgets for new educational methods and technologies in order to keep the educational services up-to-date. All too often, however,…

The History of Adult Education in Greece.

Science.gov (United States)

Boucouvalas, Marcie

Adult education in Greece dates back to the time of Homer. Poetry and Panhellenic festivals were the earliest forms of adult education in Greece. By classical times, however, an entire learning society of human and material resources had been developed. Greek society experienced periods of high levels of culture and learning only to be conquered…

Educative Supervision in International Cooperation Contexts

Science.gov (United States)

Ortiz, Ana; Valdivia-Moral, Pedro; Cachón, Javier; Prieto, Joel

2015-01-01

This present paper has got a clear goal: to contextualize education for development in the present moment, planning its evolution and the keys that characterize education collected from the most representative and up-to-date pieces of work. The experience that we present is integrated in a project developed in Paraguay that is expected to describe…

Accidental exposure to biological material in healthcare workers at a university hospital: Evaluation and follow-up of 404 cases.

Science.gov (United States)

Gutierrez, Eliana Battaggia; Lopes, Marta Heloísa; Yasuda, Maria Aparecida Shikanai

2005-01-01

The care and follow-up provided to healthcare workers (HCWs) from a large teaching hospital who were exposed to biological material between 1 August 1998 and 31 January 2002 is described here. After exposure, the HCW is evaluated by a nurse and doctor in an emergency consultation and receives follow-up counselling. The collection of 10 ml of blood sample from each HCW and its source patient, when known, is made for immunoenzymatic testing for HIV, HBV and HCV. Evaluation and follow-up of 404 cases revealed that the exposures were concentrated in only a few areas of the hospital; 83% of the HCWs exposed were seen by a doctor responsible for the prophylaxis up to 3 h after exposure. Blood was involved in 76.7% (309) of the exposures. The patient source of the biological material was known in 80.7% (326) of the exposed individuals studied; 80 (24.5%) sources had serological evidence of infection with 1 or more agents: 16.2% were anti-HCV positive, 3.8% were HAgBs positive and 10.9% were anti-HIV positive. 67% (273) of the study population completed the proposed follow-up. No confirmed seroconversion occurred. In conclusion, the observed adherence to the follow-up was quite low, and measures to improve it must be taken. Surprisingly, no difference in adherence to the follow-up was observed among those exposed HCW at risk, i.e. those with an infected or unknown source patient. Analysis of post-exposure management revealed excess prescription of antiretroviral drugs, vaccine and immunoglobulin. Infection by HCV is the most important risk of concern, in our hospital, in accidents with biological material.

International Workshop on Best Practices in Material Hold-Up Monitoring

International Nuclear Information System (INIS)

Pickett, Chris A; Coates, Cameron W.

2008-01-01

In the fall of 2006, the Oak Ridge National Laboratory (ORNL) hosted an INMM-sponsored International Workshop on Best Practices in Material Hold-Up Monitoring. This workshop represented the first time in over 20 years that the international community had gathered to discuss pertinent hold-up topics and needs. More than one hundred people attended the workshop. Their expertise in the field ranged from novice to expert, and they shared their experiences and expertise throughout the week of the workshop. Presenters discussed techniques that have been used worldwide to detect and characterize nuclear materials held up in processes and equipment and the policies used to report quantities detected. The primary goal of the workshop was to compile information on the best practices and lessons learned and to make this information available for sharing throughout the international community. This paper discusses the information that was produced from four separate working groups (each composed of workshop attendees). Each group was tasked to determine what it felt to be the best practices in the field today and what issues needed to be addressed to move the field forward in the 21st century

REIMEP-22 inter-laboratory comparison: "U Age Dating - Determination of the production date of a uranium certified test sample"

OpenAIRE

VENCHIARUTTI CELIA; VARGA ZSOLT; RICHTER Stephan; JAKOPIC Rozle; MAYER Klaus; AREGBE Yetunde

2015-01-01

The REIMEP-22 inter-laboratory comparison aimed at determining the production date of a uranium certified test sample (i.e. the last chemical separation date of the material). Participants in REIMEP-22 on "U Age Dating - Determination of the production date of a uranium certified test sample" received one low-enriched 20 mg uranium sample for mass spectrometry measurements and/or one 50 mg uranium sample for D-spectrometry measurements, with an undisclosed value for the production date. They ...

76 FR 34068 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-06-10

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary... Commission on Accessible Instructional Materials in Postsecondary Education for Students with Disabilities... or by mail to Advisory Commission on Accessible Instructional Materials in Postsecondary Education...

Quality Assurance Model for Digital Adult Education Materials

Science.gov (United States)

Dimou, Helen; Kameas, Achilles

2016-01-01

Purpose: This paper aims to present a model for the quality assurance of digital educational material that is appropriate for adult education. The proposed model adopts the software quality standard ISO/IEC 9126 and takes into account adult learning theories, Bloom's taxonomy of learning objectives and two instructional design models: Kolb's model…

The effect of build-up cap materials on the response of an ionization chamber to 60Co gamma rays

International Nuclear Information System (INIS)

Rocha, M.P.O.; Almeida, C.E. de

1993-01-01

Knowledge of the effect of wall and build-up cap materials on ionization chamber response is necessary to determine absorbed dose in a medium using a calibration factor based on exposure or kerma in air. Attenuation and scattering effects of 60 Co gamma rays in the ionization chamber wall and build-up cap, as well as their non-equivalence to air, were studied with an OFS ionization chamber (Delrin wall) and a set of build-up caps specially built for this purpose. Results for a specific material were plotted as functions of wall and cap total thickness, extrapolated to zero wall thickness, then corrected for mean centre of electron production in the wall (= 0.136 g cm -2 ). Correction factors for a specific thickness were analysed in relation to cap material, and to relative responses compared with values calculated by using AAPM, SEFM and IAEA formalisms for cap effects. A Monte Carlo calculation was performed to compare the experimental and theoretical values. Calculations showed an agreement within 0.1% with experimental values and a wall effect of approximately 1.6%. (Author)

Readability of Online Patient Education Materials From the AAOS Web Site

Science.gov (United States)

Badarudeen, Sameer; Unes Kunju, Shebna

2008-01-01

One of the goals of the American Academy of Orthopaedic Surgeons (AAOS) is to disseminate patient education materials that suit the readability skills of the patient population. According to standard guidelines from healthcare organizations, the readability of patient education materials should be no higher than the sixth-grade level. We hypothesized the readability level of patient education materials available on the AAOS Web site would be higher than the recommended grade level, regardless when the material was available online. Readability scores of all articles from the AAOS Internet-based patient information Web site, “Your Orthopaedic Connection,” were determined using the Flesch-Kincaid grade formula. The mean Flesch-Kincaid grade level of the 426 unique articles was 10.43. Only 10 (2%) of the articles had the recommended readability level of sixth grade or lower. The readability of the articles did not change with time. Our findings suggest the majority of the patient education materials available on the AAOS Web site had readability scores that may be too difficult for comprehension by a substantial portion of the patient population. PMID:18324452

One-year follow-up of a coach-delivered dating violence prevention program: a cluster randomized controlled trial.

Science.gov (United States)

Miller, Elizabeth; Tancredi, Daniel J; McCauley, Heather L; Decker, Michele R; Virata, Maria Catrina D; Anderson, Heather A; O'Connor, Brian; Silverman, Jay G

2013-07-01

Perpetration of physical, sexual, and psychological abuse is prevalent in adolescent relationships. One strategy for reducing such violence is to increase the likelihood that youth will intervene when they see peers engaging in disrespectful and abusive behaviors. This 12-month follow-up of a cluster RCT examined the longer-term effectiveness of Coaching Boys Into Men, a dating violence prevention program targeting high school male athletes. This cluster RCT was conducted from 2009 to 2011. The unit of randomization was the school, and the unit of analysis was the athlete. Data were analyzed in 2012. Participants were male athletes in Grades 9-11 (N=1513) participating in athletics in 16 high schools. The intervention consisted of training athletic coaches to integrate violence prevention messages into coaching activities through brief, weekly, scripted discussions with athletes. Primary outcomes were intentions to intervene, recognition of abusive behaviors, and gender-equitable attitudes. Secondary outcomes included bystander behaviors and abuse perpetration. Intervention effects were expressed as adjusted mean between-arm differences in changes in outcomes over time, estimated via regression models for clustered, longitudinal data. Perpetration of dating violence in the past 3 months was less prevalent among intervention athletes relative to control athletes, resulting in an estimated intervention effect of -0.15 (95% CI=-0.27, -0.03). Intervention athletes also reported lower levels of negative bystander behaviors (i.e., laughing and going along with peers' abusive behaviors) compared to controls (-0.41, 95% CI=-0.72, -0.10). No differences were observed in intentions to intervene (0.04, 95% CI=-0.07, 0.16); gender-equitable attitudes (-0.04, 95% CI=-0.11, 0.04); recognition of abusive behaviors (-0.03, 95% CI=-0.15, 0.09); or positive bystander behaviors (0.04, 95% CI=-0.11, 0.19). This school athletics-based dating violence prevention program is a promising

Evaluation of printed health education materials for use by low-education families.

Science.gov (United States)

Ryan, Lesa; Logsdon, M Cynthia; McGill, Sarah; Stikes, Reetta; Senior, Barbara; Helinger, Bridget; Small, Beth; Davis, Deborah Winders

2014-07-01

Millions of adults lack adequate reading skills and many written patient education materials do not reflect national guidelines for readability and suitability of materials, resulting in barriers to patients being partners in their own health care. The purpose of this study was to evaluate commonly used printed health materials for readability and suitability for patients with limited general or health literacy skills, while providing easy recommendations to health care providers for how to improve the materials. Materials (N = 97) from three clinical areas that represented excellence in nursing care in our organization (stroke, cancer, and maternal-child) were reviewed for a composite reading grade level and a Suitability Assessment of Materials (SAM) score. Twenty-eight percent of the materials were at a 9th grade or higher reading level, and only 23% were 5th grade or below. The SAM ratings for not suitable, adequate, and superior were 11%, 58%, and 31%, respectively. Few materials were superior on both scales. The SAM scale was easy to use and required little training of reviewers to achieve interrater reliability. Improving outcomes and reducing health disparities are increasingly important, and patients must be partners in their care for this to occur. One step to increasing patient understanding of written instructions is improving the quality of the materials in the instruction for all patients and their families, especially those with limited literacy skills. Using materials that are written in a manner that facilitates the uptake and use of patient education content has great potential to improve the ability of patients and families to be partners in care and to improve outcomes, especially for those patients and families with limited general literacy or health literacy skills. © 2014 Sigma Theta Tau International.

Youth Solid Waste Educational Materials List, November 1991.

Science.gov (United States)

Cornell Univ., Ithaca, NY. Cooperative Extension Service.

This guide provides a brief description and ordering information for approximately 300 educational materials for grades K-12 on the subject of solid waste. The materials cover a variety of environmental issues and actions related to solid waste management. Entries are divided into five sections including audiovisual programs, books, magazines,…

Criteria for assessing learning material for distance education ...

African Journals Online (AJOL)

This article proposes eight broad criteria for assessing learning material for distance education institutions such as the University of South Africa (Unisa) where learning material in print format is the main teaching method. To this end, the article analyses and evaluates the major trends in the international and national fields ...

Emergy Evaluation of the United States, U.S. Education, Educational Attainment and the National Financial System from 1950 through 2016

Science.gov (United States)

Past work quantifying the emergy basis for the U.S. economy, the U.S. education system and the educational attainment of the population through 2011 is brought up to date with the most recent data available from the U.S. Statistical Abstracts as well as other critical information...

76 FR 19984 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-04-11

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities AGENCY: U.S. Department of Education, Office of Special Education....gov or by mail to Advisory Commission on Accessible Instructional Materials in Postsecondary Education...

Microscale radiocarbon dating of paintings

International Nuclear Information System (INIS)

Hendriks, Laura; Hajdas, Irka; McIntyre, Cameron; Kueffner, Markus; Ferreira, Ester S.B.; Scherrer, Nadim C.

2016-01-01

In this paper, radiocarbon dating of paintings using minimal sample sizes has been investigated, in an effort to address the problem of limited access to sample material in paintings. 14 C analyses were conducted on signed and dated paintings from two Swiss artists of the twentieth century. The selected paintings dated from the 1930s and 1960s, provided the opportunity to evaluate the dating accuracy on paintings realized before and after 1950 AD when the 14 C bomb peak was created, as a result of the nuclear tests conducted in the 1950/1960s. The work focused on the one hand on minimizing the size of the canvas sample required for accelerator mass spectrometer radiocarbon measurement on the gas ion source of the MICADAS and, on the other hand, on testing the possibility of dating the organic binder of the paint. Following careful characterization of the paint composition by X-ray fluorescence spectroscopy, Fourier transformed infrared spectroscopy, and Raman spectroscopy, paints containing no other carbon source than the natural organic binder were identified and dated. (orig.)

Microscale radiocarbon dating of paintings

Energy Technology Data Exchange (ETDEWEB)

Hendriks, Laura; Hajdas, Irka; McIntyre, Cameron [ETH Zurich, Ion Beam Physics, Zurich (Switzerland); Kueffner, Markus; Ferreira, Ester S.B. [SIK-ISEA, Zurich, Zurich (Switzerland); Scherrer, Nadim C. [Bern University of Applied Sciences, HKB, Bern (Switzerland)

2016-03-15

In this paper, radiocarbon dating of paintings using minimal sample sizes has been investigated, in an effort to address the problem of limited access to sample material in paintings. {sup 14}C analyses were conducted on signed and dated paintings from two Swiss artists of the twentieth century. The selected paintings dated from the 1930s and 1960s, provided the opportunity to evaluate the dating accuracy on paintings realized before and after 1950 AD when the {sup 14}C bomb peak was created, as a result of the nuclear tests conducted in the 1950/1960s. The work focused on the one hand on minimizing the size of the canvas sample required for accelerator mass spectrometer radiocarbon measurement on the gas ion source of the MICADAS and, on the other hand, on testing the possibility of dating the organic binder of the paint. Following careful characterization of the paint composition by X-ray fluorescence spectroscopy, Fourier transformed infrared spectroscopy, and Raman spectroscopy, paints containing no other carbon source than the natural organic binder were identified and dated. (orig.)

Readability and suitability assessment of patient education materials in rheumatic diseases.

Science.gov (United States)

Rhee, Rennie L; Von Feldt, Joan M; Schumacher, H Ralph; Merkel, Peter A

2013-10-01

Web-based patient education materials and printed pamphlets are frequently used by providers to inform patients about their rheumatic disease. Little attention has been given to the readability and appropriateness of patient materials. The objective of this study was to examine the readability and suitability of commonly used patient education materials for osteoarthritis (OA), rheumatoid arthritis, systemic lupus erythematosus, and vasculitis. Five or 6 popular patient resources for each disease were chosen for evaluation. Readability was measured using the Flesch-Kincaid reading grade level and suitability was determined by the Suitability Assessment of Materials (SAM), a score that considers characteristics such as content, graphics, layout/topography, and cultural appropriateness. Three different reviewers rated the SAM score and means were used in the analysis. Twenty-three resources written on the 4 diseases were evaluated. The education material for all 4 diseases studied had readability above the eighth-grade level and readability did not differ among the diseases. Only 5 of the 23 resources received superior suitability scores, and 3 of these 5 resources were written for OA. All 4 diseases received adequate suitability scores, with OA having the highest mean suitability score. Most patient education materials for rheumatic diseases are written at readability levels above the recommended sixth-grade reading level and have only adequate suitability. Developing more appropriate educational resources for patients with rheumatic diseases may improve patient comprehension. Copyright © 2013 by the American College of Rheumatology.

Assessment of adolescent self-constructed material use in physical education

Directory of Open Access Journals (Sweden)

Fernández-Río, Javier

2012-07-01

Full Text Available the goals of this research project were three: study how secondary education students value self-made materials, assess their effects while used to teach sport, and analyze how the students’ perspective on these materials change over age and gender. Students from a high school in the north part of Spain agreed to participate. They belonged to 1st, 2nd, and 4th year of secondary education. They were asked to build their own self-made cardboard ringo with recycled materials to use it during an ultimate learning unit. A hybrid instructional method (tactical games + sport education was used along 8-10 sessions. After the intervention, subjects filled out a 15-item questionnaire (1-5 likert point scale. Overall results showed that subjects did not consider that building the ringo was hard. Finding the material was not difficult, either. They also thought that using the ringo was more fun than using the traditional Frisbee. Younger students valued the experience higher than older subjects. The usage of self-made materials was more attractive, motivating and useful for 1st year subjects. They also though that this type of material had helped them improve their throwing and catching skills. They even wanted to use it in extracurricular settings

The Catch-up Education Programme in Turkey: Opportunities and challenges

Science.gov (United States)

Börkan, Bengü; Ünlühisarcıklı, Özlem; Caner, H. Ayşe; Sart, Z. Hande

2015-02-01

Turkish children between the ages of 10-14 who either never enrolled in primary education, dropped out of school, or were at least three years behind their peers had the opportunity of joining an accelerated learning programme. It was developed by the Turkish Ministry of National Education General Directorate of Primary Education as a response to the urgent need to secure these children's right to education. The programme, called "Catch-up Education Programme" (CEP), was implemented between September 2008 and 2013 in collaboration with the United Nations Children's Fund (UNICEF) to enable those children to complete several grades in a short time and then to continue their education with their peers. This paper presents the findings of a study, conducted in 2010, reviewing the challenges and opportunities experienced during the implementation process from the points of view of beneficiaries (pupils and parents) and implementers. The results are discussed in relation to educational policy and its implementation in general.

May {sup 14}C be used to date contemporary art?

Energy Technology Data Exchange (ETDEWEB)

Fedi, M.E., E-mail: fedi@fi.infn.it [INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino (Italy); Caforio, L. [INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino (Italy); Dipartimento di Fisica, Universita di Ferrara, Via Saragat 1, 44100 Ferrara (Italy); Mando, P.A. [INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino (Italy); Dipartimento di Fisica e Astronomia, Universita di Firenze, Via Sansone 1, 50019 Sesto Fiorentino (Italy); Petrucci, F. [Dipartimento di Fisica, Universita di Ferrara, Via Saragat 1, 44100 Ferrara (Italy); INFN Sezione di Ferrara, Via Saragat 1, 44100 Ferrara (Italy); Taccetti, F. [INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino (Italy)

2013-01-15

The use of radiocarbon in forensics is by now widespread, thanks to the so-called bomb peak, which makes it possible to perform high-precision dating. Since 1955, {sup 14}C concentration in the atmosphere had strongly increased due to nuclear explosions, reaching its maximum value in 1963-1965. After the Nuclear Test Ban Treaty, {sup 14}C started to decrease as a consequence of the exchanges between atmosphere and the other natural carbon reservoirs. Nowadays, it is still slightly above the pre-bomb value. The work presented in this paper is based on the idea of exploiting the bomb peak to 'precisely' date works of contemporary art, with the aim at identifying possible fakes. We analysed two kinds of materials from the 20th century: newspapers and painting canvases. Newspaper samples were taken because they might in principle be considered to represent dated samples (considering the date on the issues). Our data (28 samples) show a trend similar to atmospheric data in the literature, although with some differences; the paper peak is flatter and shifted towards more recent years (about five years) with respect to the atmospheric data. This can be explained by taking paper manufacturing processes into account. As to the canvas samples, the measured {sup 14}C concentrations were generally reasonably consistent with the expected concentrations (based on the year on the paintings). However, this does not indicate that the interpretation of the results is simpler and more straightforward. Obviously, we only measure the {sup 14}C concentration of the fibre used for the canvas, which does not necessarily measure the date the painting was manufactured. In this paper, sample preparation and experimental results will be discussed, in order to show the potential as well as the limitations of radiocarbon to date contemporary art.

Scientific evaluation of an intra-curricular educational kit to foster inquiry-based learning (IBL)

Science.gov (United States)

Debaes, Nathalie; Cords, Nina; Prasad, Amrita; Fischer, Robert; Euler, Manfred; Thienpont, Hugo

2014-07-01

Society becomes increasingly dependent on photonics technologies; however there is an alarming lack of technological awareness among secondary school students. They associate photonics with experiments and components in the class room that seem to bear little relevance to their daily life. The Rocard Report [5] highlights the need for fostering students' scientific skills and technological awareness and identifies inquiry based learning (IBL) as a means to achieve this. Students need to actively do science rather than be silent spectators. The `Photonics Explorer' kit was developed as an EU funded project to equip teachers, free-of-charge, with educational material designed to excite, engage and educate European secondary school students using guided inquiry based learning techniques. Students put together their own experiments using up-to-date versatile components, critically interpret results and relate the conclusions to relevant applications in their daily life. They work hands-on with the material, thus developing and honing their scientific and analytical skills that are otherwise latent in a typical class room situation. A qualitative and quantitative study of the impact of the kit in the classroom was undertaken with 50 kits tested in 7 EU countries with over 1500 students in the local language. This paper reports on the results of the EU wide field tests that show the positive impact of the kit in raising the self-efficacy, scientific skills and interest in science among students and the effectiveness of the kit in implementing IBL strategies in classrooms across EU.

Multiscale paradigms in integrated computational materials science and engineering materials theory, modeling, and simulation for predictive design

CERN Document Server

Runge, Keith; Muralidharan, Krishna

2016-01-01

This book presents cutting-edge concepts, paradigms, and research highlights in the field of computational materials science and engineering, and provides a fresh, up-to-date perspective on solving present and future materials challenges. The chapters are written by not only pioneers in the fields of computational materials chemistry and materials science, but also experts in multi-scale modeling and simulation as applied to materials engineering. Pedagogical introductions to the different topics and continuity between the chapters are provided to ensure the appeal to a broad audience and to address the applicability of integrated computational materials science and engineering for solving real-world problems.

Development of a British Road Safety Education Support Materials Curriculum.

Science.gov (United States)

Bouck, Linda H.

Road safety education needs to be a vital component in the school curriculum. This paper describes a planned road safety education support materials curriculum developed to aid educators in the Wiltshire County (England) primary schools. Teaching strategies include topic webs, lecture, class discussion, group activities, and investigative learning…

Education, material condition and physical functioning trajectories in middle-aged and older adults in Central and Eastern Europe: a cross-country comparison

Science.gov (United States)

Hu, Yaoyue; Pikhart, Hynek; Pająk, Andrzej; Kubínová, Růžena; Malyutina, Sofia; Besala, Agnieszka; Peasey, Anne; Marmot, Michael; Bobak, Martin

2016-01-01

Background Two competing hypotheses, cumulative advantage/disadvantage and age-as-leveller, have been proposed to explain the contradictory findings on socioeconomic differences in health over the lifespan. To test these hypotheses, this investigation examined the influence of educational attainment and material condition on individual trajectories of physical functioning (PF) in unexplored ageing populations in Central and Eastern Europe. Methods 28 783 men and women aged 45–69 years selected from populations in seven Czech towns, Krakow (Poland) and Novosibirsk (Russia). PF was measured by the Physical Functioning Subscale (PF-10) of the Short-Form-36 questionnaire (SF-36) at baseline and three subsequent occasions. The highest educational attainment was self-reported at baseline, and material condition was captured by the sum score of 12 household amenities and assets. Results In all cohorts, participants with a university degree had the highest PF-10 score at baseline and slowest rate of decline in the score during follow-up, while the lowest baseline scores and fastest decline rate were found in participants with less than secondary education in all cohorts and in Russians with secondary education. Similar disparities in the baseline PF-10 score and decline rate were observed across tertiles of material condition, but differences in decline rates across the three tertiles among Czechs or between the lower two tertiles among Russians were not statistically significant. Conclusions Disparities in PF by educational attainment and material condition among middle-aged and older adults in Central and Eastern Europe existed at baseline and widened during ∼10 years of follow-up, supporting the cumulative advantage/disadvantage hypothesis. PMID:27194710

Dating by electron paramagnetic resonance

International Nuclear Information System (INIS)

Poupeau, G.; Rossi, A.M.

1984-01-01

Some natural materials behave like dosimeters in front of the ionizing particle flux coming from environmental radioactivity and the cosmic radiation. This property is used for the dating by Electron Paramagnetic Resonance (EPR). Before presenting the basic principles of the EPR analysis and the dating method which uses such a phenomenous, it is reviewed several types of application currently in course of development. (L.C.) [pt

Planning and pre-testing: the key to effective AIDS education materials.

Science.gov (United States)

Ostfield, M L; Romocki, L S

1991-06-01

The steps in designing and producing effective AIDS prevention educational materials are outlines, using as an example a brochure originated in St. Lucia for clients at STD clinics. The brochure was intended to be read by clients as they waited for their consultation, thus it was targeted to a specific audience delimited by age, sex, language, educational level, religion and associated medical or behavioral characteristics. When researching the audience, it is necessary to learn the medium they best respond to, what they know already, what is their present behavior, how they talk about AIDS, what terms they use, how they perceive the benefits of AIDS prevention behavior, what sources of information they trust. The minimum number of key messages should be selected. Next the most appropriate channel of communication is identified. Mass media are not always best for a target audience, "little media" such as flyers and give-always may be better. The draft is then pre-tested by focus groups and interviews, querying about the text separately, then images, color, format, style. Listen to the way the respondents talk about the draft. Modify the draft and pre-test again. Fine-tune implications of the message for realism in emotional responses, respect, self-esteem, admiration and trust. To achieve wide distribution it is a good idea to involve community leaders to production of the materials, so they will be more likely to take part in the distribution process.

Dating violence and suicidal behavior in adolescents.

Science.gov (United States)

Holmes, Kristin; Sher, Leo

2013-01-01

The aim of this paper is to assess the possible consequences of adolescent physical, emotional and sexual dating violence through a review of the literature on the topic. An electronic search of major biomedical bibliographic databases (Pubmed, ISI, PsycINFO) was used to retrieve articles providing information on the prevalence rates, risk factors, associated consequences and possible preventive measures for adolescent dating violence across different populations. Currently, there have been few longitudinal studies conducted to identify potential risk factors for entering a violent dating relationship in adolescence. Risky behaviors such as early sexual intercourse may predispose someone for victimization. Dating violence itself is also a predictor of future dating violence. Adolescent dating violence was associated with an increase in other violence-related behaviors, substance use, depression, poorer educational outcomes, posttraumatic stress, unhealthy weight control and risky sexual behavior. The association between adolescent dating violence and an increase in suicidal behavior is a major public health concern. Future research should focus on longitudinal studies so that a causal relationship between dating violence and suicidality may be better understood.

Adolescent beliefs about the acceptability of dating violence: does violent behavior change them?

Science.gov (United States)

Mueller, Victoria; Jouriles, Ernest N; McDonald, Renee; Rosenfield, David

2013-01-01

This longitudinal study examined the interplay between teens' beliefs about the acceptability of dating violence and dating violence perpetration. The final sample included 82 teens aged 14 to 17 years. Families were recruited from truancy courts and juvenile probation and victim services offices. Teens participated in a baseline and a follow-up assessment spaced 3 months apart. At each assessment, teens reported on their beliefs about dating violence acceptability and their dating violence perpetration. Dating violence perpetration at baseline predicted beliefs accepting of violence at follow-up, after accounting for baseline levels of beliefs. Beliefs at baseline, however, did not predict dating violence perpetration at follow-up. Dating violence perpetration may lead to beliefs more accepting of such violence.

Expanding Nuclear Power Programmes - Romanian experience: Master - Nuclear Materials and Technologies Educational Plan

International Nuclear Information System (INIS)

Valeca, S.; Valeca, M.

2012-01-01

The main objectives of the Master Nuclear Materials and Technologies Educational Plan are: 1. To deliver higher education and training in the following specific domains, such as: Powders Technology and Ceramic Materials, Techniques of Structural Analysis, Composite Materials, Semiconductor Materials and Components, Metals and Metallic Alloys, Optoelectronic Materials and Devices, Nuclear Materials, The Engineering of Special Nuclear Materials, 2. To train managers of the Nuclear Waste Products and Nuclear Safety, 3. To qualify in ICT Systems for Nuclear Process Guidance, 4. To qualify in Environmental Protection System at the Level of Nuclear Power Stations, 5. To train managers for Quality Assurance of Nuclear Energetic Processes, 6. To deliver higher education and training regarding the International Treatises, Conventions and Settlements in force in the field of nuclear related activities. (author)

7 CFR 999.1 - Regulation governing the importation of dates.

Science.gov (United States)

2010-01-01

... SERVICE (Marketing Agreements and Orders; Fruits, Vegetables, Nuts), DEPARTMENT OF AGRICULTURE SPECIALTY...) Dates in retail packages means whole or pitted dates, other than dates prepared or preserved, wrapped or... includes dates coated with a substance materially altering their color. (5) Dates prepared or preserved...

Web-Based Learning Materials for Higher Education: The MERLOT Repository

Science.gov (United States)

Orhun, Emrah

2004-01-01

MERLOT (Multimedia Educational Resource for Learning and Online Teaching) is a web-based open resource designed primarily for faculty and students in higher education. The resources in MERLOT include over 8,000 learning materials and support materials from a wide variety of disciplines that can be integrated within the context of a larger course.…

Colorado GEAR UP Program Design and Its Effect on Student Perceptions of Postsecondary Education

Science.gov (United States)

Mendelsberg, Scott

2012-01-01

Gaining Early Awareness and Readiness for Undergraduate Programs (GEAR UP) is a federal program aimed at equalizing access to higher education for low-income students. GEAR UP, created in 1998, attempts to provide information and support about higher education to students beginning no later than the seventh grade while promoting lasting…

Some Aspects of Science Education in European Context

Science.gov (United States)

Naumescu, Adrienne Kozan; Pasca, Roxana-Diana

2008-01-01

Some up-to-date problems in science education in European context are treated in this paper. The characteristics of science education across Europe are presented. Science teachers' general competencies are underlined. An example of problem-solving as teaching method in chemistry is studied in knowledge based society. Transforming teacher practice…

Up-to-Date Information on Rheumatoid Arthritis-Associated Interstitial Lung Disease

Directory of Open Access Journals (Sweden)

Takafumi Suda

2015-01-01

Full Text Available Pulmonary involvement is common in rheumatoid arthritis (RA and affects all the components of the lung. Interstitial lung disease (ILD is the most predominant pulmonary manifestation and has been identified as the main cause of morbidity and mortality in RA. Clinically significant RA-ILD occurs in approximately 10% of RA patients. Several risk factors, such as old age, male gender, and smoking, have been reported to date. Histologically, the proportion of the usual interstitial pneumonia (UIP pattern is higher in RA-ILD than in ILD associated with other connective tissue diseases, and RA-ILD also shows nonspecific interstitial pneumonia and organizing pneumonia patterns. High-resolution computed tomography scans are highly predictive of the histological UIP pattern with a specificity of 96%-100%. Acute exacerbation, which is the acute deterioration of the respiratory status characterized by newly developed bilateral infiltrates with unknown etiologies, has been reported in RA-ILD. Although acute exacerbation of RA-ILD has high mortality, similar to that of idiopathic pulmonary fibrosis, its incidence is lower in RA-ILD than in idiopathic pulmonary fibrosis. A consensus treatment has not yet been established. Current therapeutic regimens typically include corticosteroids with or without cytotoxic agents. Recent large longitudinal studies reported that the prognosis of RA-ILD was poor with a median survival of 2.6-3.0 years. Furthermore, histological and/or radiological patterns, such as UIP or non-UIP, have significant prognostic implications. RA-ILD patients with histological or radiological UIP patterns have poorer prognoses than those with non-UIP patterns. This review assessed the characteristics of RA-ILD by overviewing recent studies in the field and focused on the clinical significance of histological and/or radiological patterns in RA-ILD.

Readability of patient education materials in ophthalmology: a single-institution study and systematic review.

Science.gov (United States)

Williams, Andrew M; Muir, Kelly W; Rosdahl, Jullia A

2016-08-03

Patient education materials should be written at a level that is understandable for patients with low health literacy. The aims of this study are (1) to review the literature on readability of ophthalmic patient education materials and (2) to evaluate and revise our institution's patient education materials about glaucoma using evidence-based guidelines on writing for patients with low health literacy. A systematic search was conducted on the PubMed/MEDLINE database for studies that have evaluated readability level of ophthalmic patient education materials, and the reported readability scores were assessed. Additionally, we collected evidence-based guidelines for writing easy-to-read patient education materials, and these recommendations were applied to revise 12 patient education handouts on various glaucoma topics at our institution. Readability measures, including Flesch-Kincaid Grade Level (FKGL), and word count were calculated for the original and revised documents. The original and revised versions of the handouts were then scored in random order by two glaucoma specialists using the Suitability Assessment of Materials (SAM) instrument, a grading scale used to evaluate suitability of health information materials for patients. Paired t test was used to analyze changes in readability measures, word count, and SAM score between original and revised handouts. Finally, five glaucoma patients were interviewed to discuss the revised materials, and patient feedback was analyzed qualitatively. Our literature search included 13 studies that evaluated a total of 950 educational materials. Among the mean FKGL readability scores reported in these studies, the median was 11 (representing an eleventh-grade reading level). At our institution, handouts' readability averaged a tenth-grade reading level (FKGL = 10.0 ± 1.6), but revising the handouts improved their readability to a sixth-grade reading level (FKGL = 6.4 ± 1.2) (p readability and suitability of

A model for the build-up of disordered material in ion bombarded Si

International Nuclear Information System (INIS)

Nelson, R.S.

1977-01-01

A new model based on experimental observation is developed for the build-up of disordered material in ion bombarded silicon. The model assumes that disordered zones are created in a background of migrating point defects, these zones then act as neutral sinks for such defects which interact with the zones and cause recrystallization. A simple steady state rate theory is developed to describe the build-up of disordered material with ion dose as a function of temperature. In general the theory predicts two distinct behaviour patterns depending on the temperature and the ion mass, namely a linear build-up with dose to complete disorder for heavy bombarding ions and a build-up to saturation at a relatively low level for light ions such as protons. However, in some special circumstances a transition region is predicted where the build-up of disorder approximately follows a (dose)sup(1/2) relationship before reverting to a linear behaviour at high dose. (author)

Comparison Effects of Sucrose and Date Palm Syrup on Somatic Embryogenesis of Date Palm (Phoenix dactylifera L )

OpenAIRE

Abdullatif Alkhateeb

2008-01-01

The effect of different concentration of date palm syrup (2, 4, 6, 8 and 10%) and sucrose at concentration of 30 and 60 g/l in addition to the control (without carbon source) on the micro propagation of date palm "cv. Suckary" were investigated. The results indicated that date syrup was taken up from the media as shown by the increase in total dry weight of culture. Addition of sucrose at 60 g/l produced the highest number of somatic embryos and longest shoot equal to that produced by date sy...

Planetary Science Educational Materials for Out-of-School Time Educators

Science.gov (United States)

Barlow, Nadine G.; Clark, Joelle G.

2017-10-01

Planetary Learning that Advances the Nexus of Engineering, Technology, and Science (PLANETS) is a five-year NASA-funded (NNX16AC53A) interdisciplinary and cross-institutional partnership to develop and disseminate STEM out-of-school time (OST) curricular and professional development units that integrate planetary science, technology, and engineering. The Center for Science Teaching and Learning (CSTL) and Department of Physics and Astronomy (P&A) at Northern Arizona University, the U.S. Geological Survey Astrogeology Science Center (USGS ASC), and the Museum of Science Boston (MoS) are partners in developing, piloting, and researching the impact of three out-of-school time units. Planetary scientists at USGS ASC and P&A have developed two units for middle grades youth and one for upper elementary aged youth. The two middle school units focus on greywater recycling and remote sensing of planetary surfaces while the elementary unit centers on exploring space hazards. All units are designed for small teams of ~4 youth to work together to investigate materials, engineer tools to assist in the explorations, and utilize what they have learned to solve a problem. Youth participate in a final share-out with adults and other youth of what they learned and their solution to the problem. Curriculum pilot testing of the two middle school units has begun with out-of-school time educators. A needs assessment has been conducted nationwide among educators and evaluation of the curriculum units is being conducted by CSTL during the pilot testing. Based on data analysis, the project is developing and testing four tiers of professional support for OST educators. Tier 1 meets the immediate needs of OST educators to teach curriculum and include how-to videos and other direct support materials. Tier 2 provides additional content and pedagogical knowledge and includes short content videos designed to specifically address the content of the curriculum. Tier 3 elaborates on best practices

Congenital scoliosis: an up-to-date

Science.gov (United States)

Burnei, G; Gavriliu, S; Vlad, C; Georgescu, I; Ghita, RA; Dughilă, C; Japie, EM; Onilă, A

2015-01-01

Congenital scoliosis represents a spinal malformation due to defects of formation, segmentation or mixed ones. It is characterized by a longitudinal and rotational imbalance. 54 patients were analyzed and 39 out of them were operated by various approaches with anterior and posterior instrumentations during 2000 and 2012. The impossibility to appoint some patients encountered in the daily practice into the known classifications, allowed us to purpose two categories of congenital scoliosis related to the predominance of spinal deviances in the coronal and transversal views. No certain etiology of congenital scoliosis has been identified until today. The susceptibility of some polygenic defects is obvious due to the presence of a sum of defects associated to most of the congenital scoliosis cases and the rarity of the presence of a unique defect. The diagnosis requires a thorough clinical and imaging examination in order to establish an individualized therapeutic strategy. The treatment of congenital scoliosis is different from the adolescent idiopathic one. Therapeutic criteria are significantly different. It is essential to assess the difference in growth of the concavity related to the convexity when choosing a particular procedure. The magnitude of the curve and the progressive rate are fundamental issues to the surgeon PMID:26351546

The astronomy education through interactive materials

Science.gov (United States)

de Macedo, Josué Antunes; Voelzke, Marcos Rincon

2014-11-01

This study presents results of a survey conducted at the Federal Institution of Education, Science and Technology in the North of Minas Gerais (IFNMG), and aimed to investigate the potentialities of the use of interactive materials in the teaching of astronomy. An advanced training course with involved learning activities about basic concepts of astronomy was offered to thirty-two Licenciate students in Physics, Mathematics and Biological Sciences, using three pedagogical moments. Among other aspects, the viability of the use of resources was noticed, involving digital technologies and interactive materials on teaching of astronomy, which may contribute to the broadening of methodological options for future teachers and meet their training needs

An Arctic perspective on dating Mid-Late Pleistocene environmental history

DEFF Research Database (Denmark)

Alexanderson, Helena; Backman, Jan; Cronin, Thomas M.

2014-01-01

we discuss, from an Arctic perspective, methods and correlation tools that are commonly used to date Arctic Pleistocene marine and terrestrial events. We review the state of the art of Arctic geochronology, with focus on factors that affect the possibility and quality of dating, and support...... this overview by examples of application of modern dating methods to Arctic terrestrial and marine sequences. Event stratigraphy and numerical ages are important tools used in the Arctic to correlate fragmented terrestrial records and to establish regional stratigraphic schemes. Age control is commonly provided...... of these proxies reveal cyclical patterns that provide a basis for astronomical tuning. Recent advances in dating technology, calibration and age modelling allow for measuring smaller quantities of material and to more precisely date previously undatable material (i.e. foraminifera for 14C, and single...

Utilization of date syrup as a tablet binder, comparative study.

Science.gov (United States)

Alanazi, Fars Kaed

2010-04-01

The aim of this study was to investigate the possibility of using dates syrup as a tablet binder. Dates syrup (40%, 50%, 60% w/w dates syrup:water) was utilized for the granulation of sodium bicarbonate and calcium carbonate as examples for water-soluble and water-insoluble materials; correspondingly. Those two materials represent examples of bulky drugs as well. Starch paste (10% w/w starch in water) and sucrose syrup (50% w/w sucrose in water), the well-known tablet binders, were used in the granulation of the same materials for the sake of comparison. The granulations were evaluated with regard to particle size and particle size distribution, granule strength, bulk density, flowability, moisture content and compression behavior. In addition, tablets prepared and evaluated from these granules. Taste and flavor of the prepared tablet have been tested by seven healthy volunteers. Within the scope of this work, dates syrup showed excellent properties as a tablet binder in comparison to starch paste or sucrose syrup for the granulation of both water-soluble and water-insoluble materials. Also, better flavoring and masking taste have been noticed from an evaluation by human volunteers demonstrating the usefulness of the date syrup as sweetener and flavoring the tablets in addition to its use as binder.

Multifunctional materials for tribological applications

CERN Document Server

Wood, Robert J K

2015-01-01

""Professor Wood's excellent book is a must-read for all those with an interest in surface engineering and tribology. He has brought together leading experts in their field to produce a comprehensive compilation of topics highly relevant to today's needs. The book will also appeal to non-tribologists, especially engineers and scientists, developing new systems and looking for up-to-date information on advanced materials and coatings.""-Mr. Keith Harrison, The Institute of Materials, Minerals and Mining, UK""A group of well-written, informative ar

Selected Bibliography of Egyptian Educational Materials, Vol. 3, No. 2, 1977.

Science.gov (United States)

Al-Ahram Center for Scientific Translations, Cairo (Egypt).

The annotated bibliography identifies 134 selected educational materials from Egypt published during 1977. The materials are drawn from Egyptian newspapers, journals, government publications, and university research reports. The entries are organized into 54 categories, including Art Education, Arabic Language, Commercial Schools, Curricula,…

34 CFR 600.10 - Date, extent, duration, and consequence of eligibility.

Science.gov (United States)

2010-07-01

... 34 Education 3 2010-07-01 2010-07-01 false Date, extent, duration, and consequence of eligibility... EDUCATION ACT OF 1965, AS AMENDED General § 600.10 Date, extent, duration, and consequence of eligibility... statutory and regulatory requirements governing its eligibility. (e) Consequence of eligibility. (1) If, as...

Education, material condition and physical functioning trajectories in middle-aged and older adults in Central and Eastern Europe: a cross-country comparison.

Science.gov (United States)

Hu, Yaoyue; Pikhart, Hynek; Pająk, Andrzej; Kubínová, Růžena; Malyutina, Sofia; Besala, Agnieszka; Peasey, Anne; Marmot, Michael; Bobak, Martin

2016-11-01

Two competing hypotheses, cumulative advantage/disadvantage and age-as-leveller, have been proposed to explain the contradictory findings on socioeconomic differences in health over the lifespan. To test these hypotheses, this investigation examined the influence of educational attainment and material condition on individual trajectories of physical functioning (PF) in unexplored ageing populations in Central and Eastern Europe. 28 783 men and women aged 45-69 years selected from populations in seven Czech towns, Krakow (Poland) and Novosibirsk (Russia). PF was measured by the Physical Functioning Subscale (PF-10) of the Short-Form-36 questionnaire (SF-36) at baseline and three subsequent occasions. The highest educational attainment was self-reported at baseline, and material condition was captured by the sum score of 12 household amenities and assets. In all cohorts, participants with a university degree had the highest PF-10 score at baseline and slowest rate of decline in the score during follow-up, while the lowest baseline scores and fastest decline rate were found in participants with less than secondary education in all cohorts and in Russians with secondary education. Similar disparities in the baseline PF-10 score and decline rate were observed across tertiles of material condition, but differences in decline rates across the three tertiles among Czechs or between the lower two tertiles among Russians were not statistically significant. Disparities in PF by educational attainment and material condition among middle-aged and older adults in Central and Eastern Europe existed at baseline and widened during ∼10 years of follow-up, supporting the cumulative advantage/disadvantage hypothesis. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

Materials science education: ion beam modification and analysis of materials

Science.gov (United States)

Zimmerman, Robert; Muntele, Claudiu; Ila, Daryush

2012-08-01

The Center for Irradiation of Materials (CIM) at Alabama A&M University (http://cim.aamu.edu) was established in 1990 to serve the University in its research, education and services to the need of the local community and industry. CIM irradiation capabilities are oriented around two tandem-type ion accelerators with seven beam lines providing high-resolution Rutherford backscattering spectrometry, MeV focus ion beam, high-energy ion implantation and irradiation damage studies, particle-induced X-ray emission, particle-induced gamma emission and ion-induced nuclear reaction analysis in addition to fully automated ion channeling. One of the two tandem ion accelerators is designed to produce high-flux ion beam for MeV ion implantation and ion irradiation damage studies. The facility is well equipped with a variety of surface analysis systems, such as SEM, ESCA, as well as scanning micro-Raman analysis, UV-VIS Spectrometry, luminescence spectroscopy, thermal conductivity, electrical conductivity, IV/CV systems, mechanical test systems, AFM, FTIR, voltammetry analysis as well as low-energy implanters, ion beam-assisted deposition and MBE systems. In this presentation, we will demonstrate how the facility is used in material science education, as well as providing services to university, government and industry researches.

Education at a Glance. OECD Indicators. [Second Edition] = Regards sur l'education. Les indicateurs de l'OCDE. [Seconde edition.

Science.gov (United States)

Bottani, Norberto; And Others

The educational indicators in this report show how education systems in the 24 member countries of the Organisation for Economic Co-Operation and Development (OECD) resemble each other and differ. This edition, the second, builds on the 1992 volume, with more up-to-date figures and coverage of a wider range of subjects and countries. The 38…

Thermoelectric nanomaterials materials design and applications

CERN Document Server

Koumoto, Kunihito

2014-01-01

Presently, there is an intense race throughout the world to develop good enough thermoelectric materials which can be used in wide scale applications. This book focuses comprehensively on very recent up-to-date breakthroughs in thermoelectrics utilizing nanomaterials and methods based in nanoscience. Importantly, it provides the readers with methodology and concepts utilizing atomic scale and nanoscale materials design (such as superlattice structuring, atomic network structuring and properties control, electron correlation design, low dimensionality, nanostructuring, etc.). Furthermore, also

Optically stimulated luminescence dating of young sediments

DEFF Research Database (Denmark)

Madsen, Anni Tindahl; Murray, Andrew S.

2009-01-01

of OSL dating, outlines the problems specific to the dating of young material, and then uses recent applications to young sediments to illustrate the greatly increased scope and potential of the method in geomorphology and the geology of recent deposits. The overall reliability of this new generation...... for determining the time of deposition of water-lain sediments from the coastal zone, and aeolian deposits from both coastal and inland environments. Our conclusion is supported by the growing popularity of OSL dating in geomorphology and geology...

Selected Bibliography of Egyptian Educational Materials, Vol. 1, No. 3, 1975.

Science.gov (United States)

Al-Ahram Center for Scientific Translations, Cairo (Egypt).

There are 101 selected entries in this annotated bibliography of Egyptian materials on education published in 1975. Materials include journal articles, books, and government documents. The bibliography covers the following topics: academic certificates and dissertations, art education, audiovisual aids, camps, civics curricula, conferences and…

Waking-up to Science!

Science.gov (United States)

2007-03-01

our genes", says Potočnik. "Unfortunately it tends to die away when we grow up. This is because the ways we raise and educate our children and the ways we work and live do not always support innovative thinking and doing. We cannot change this overnight. But I think it is worth making the effort to awaken this dormant passion and initiatives like Science on Stage can be a very effective alarm clock", he adds. The festival will close with the presentation of the European Science Teaching Awards. The teaching materials and methods voted to be the best in Europe will then be presented in the 'Science in School' magazine, distributed free of charge to 30,000 teachers in Europe. The festival is the climax of a two-year programme of events organised in virtually every European country and from which delegates have been selected for their outstanding projects for promoting science. The winners of ESO's Catch a Star! 2007 contest will also be announced during the Science on Stage festival. The event follows on from the hugely successful 'Physics on Stage' and 'Science on Stage' festivals organised by EIROforum in 2000, 2002, 2003 and 2005. Journalists are cordially invited to take part in this unique European event. Practical information, including the detailed festival programme, is available on the Science on Stage web site at http://www.ill.fr/scienceonstage2007. A detailed press kit is available at http://www.ill.fr/scienceonstage2007/fichiers/SOSpresskit.pdf

Development of E-Learning Materials for Machining Safety Education

Science.gov (United States)

Nakazawa, Tsuyoshi; Mita, Sumiyoshi; Matsubara, Masaaki; Takashima, Takeo; Tanaka, Koichi; Izawa, Satoru; Kawamura, Takashi

We developed two e-learning materials for Manufacturing Practice safety education: movie learning materials and hazard-detection learning materials. Using these video and sound media, students can learn how to operate machines safely with movie learning materials, which raise the effectiveness of preparation and review for manufacturing practice. Using these materials, students can realize safety operation well. Students can apply knowledge learned in lectures to the detection of hazards and use study methods for hazard detection during machine operation using the hazard-detection learning materials. Particularly, the hazard-detection learning materials raise students‧ safety consciousness and increase students‧ comprehension of knowledge from lectures and comprehension of operations during Manufacturing Practice.

Constructing deposition chronologies for peat deposits using radiocarbon dating

Directory of Open Access Journals (Sweden)

N. Piotrowska

2011-06-01

Full Text Available Radiocarbon dating is one of the main methods used to establish peat chronologies. This article reviews the basis of the method and its application to dating of peat deposits. Important steps in the radiocarbon dating procedure are described, including selection and extraction of material (and fractions for dating, chemical and physical preparation of media suitable for measurements, measurements of 14C activity or concentration, calculations, calibration of results and age-depth modelling.

Utilization of date syrup as a tablet binder, comparative study

OpenAIRE

Alanazi, Fars Kaed

2010-01-01

The aim of this study was to investigate the possibility of using dates syrup as a tablet binder. Dates syrup (40%, 50%, 60% w/w dates syrup:water) was utilized for the granulation of sodium bicarbonate and calcium carbonate as examples for water-soluble and water-insoluble materials; correspondingly. Those two materials represent examples of bulky drugs as well. Starch paste (10% w/w starch in water) and sucrose syrup (50% w/w sucrose in water), the well-known tablet binders, were used in th...

Research: Detailed and Selective Follow-up of Students for Improvement of Programs/Program Components in Business & Office Education and Marketing & Distributive Education. Final Report.

Science.gov (United States)

Scott, Gary D.; Chapman, Alberta

The Kentucky student follow-up system was studied to identify the current status of follow-up activities in business and office education and marketing and distributive education; to identify the impact of follow-up data on these programs; to identify program components for which detailed follow-up can provide information to assist in program…

Building up STEM education professional learning community in school setting: Case of Khon Kaen Wittayayon School

Science.gov (United States)

Thana, Aduldej; Siripun, Kulpatsorn; Yuenyong, Chokchai

2018-01-01

The STEM education is new issue of teaching and learning in school setting. Building up STEM education professional learning community may provide some suggestions for further collaborative work of STEM Education from grounded up. This paper aimed to clarify the building up STEM education learning community in Khon Kaen Wittayayon (KKW) School setting. Participants included Khon Kaen University researchers, Khon Kaen Wittayayon School administrators and teachers. Methodology regarded interpretative paradigm. The tools of interpretation included participant observation, interview and document analysis. Data was analyzed to categories of condition for building up STEM education professional learning community. The findings revealed that the actions of developing STEM learning activities and research showed some issues of KKW STEM community of inquiry and improvement. The paper will discuss what and how the community learns about sharing vision of STEM Education, supportive physical and social conditions of KKW, sharing activities of STEM, and good things from some key STEM teachers' ambition. The paper may has implication of supporting STEM education in Thailand school setting.

Ti-Ni-based shape memory alloys as smart materials

International Nuclear Information System (INIS)

Otsuka, K.; Xu, Y.; Ren, X.

2003-01-01

Smart materials consist of three principal materials, ferroelectrics, shape memory alloys (SMA) and electro-active polymers (EAP). Among these SMAs, especially Ti-Ni-based alloys are important, since only they can provide large recoverable strains and high recovery stress. In the present paper the unique characteristics of Ti-Ni-based shape memory alloys are reviewed on an up-to-date basis with the aim of their applications to smart materials and structures. (orig.)

Do English Teaching Materials Foster Foreign Language Education Affectively?

Science.gov (United States)

Isik, Ali

2018-01-01

The paper investigates the role of English language teaching materials in the creation of a classroom atmosphere conducive to foreign language education. In this study, teachers and students were given a questionnaire and later interviewed to elicit their ideas about the materials. The data was analyzed and the responses of teachers and students…

Materialism, Stress and Health Behaviors among Future Educators

Science.gov (United States)

Brouskeli, Vasiliki; Loumakou, Maria

2014-01-01

In this study we investigated materialism among future educators and its relationship with stress and a number of health behaviors. Participants were 228 students (Mean = 20.64 years of age, S.D = 2.571) of the Department of Education Sciences in Early Childhood of the University of Thrace, Greece. The instrument consisted of a short form of the…

78 FR 39271 - Applications for New Awards; Educational Technology, Media, and Materials Program for Individuals...

Science.gov (United States)

2013-07-01

... DEPARTMENT OF EDUCATION Applications for New Awards; Educational Technology, Media, and Materials...: Educational Technology, Media, and Materials Program for Individuals with Disabilities--Center on Technology... Description Purpose of Program: The purpose of the Educational Technology, Media, and Materials for...

Rethinking Materiality In Pre-Tertiary Studio Art Education In Ghana

Directory of Open Access Journals (Sweden)

Kwame Opoku-Bonsu

2017-12-01

Full Text Available This paper explores the conventional artist and environment connections, and argues that, environment that produce the Senior High School student do so with peculiar material affinities and competences ripe for 21st century art. The culture of obliging student to a few institutionalised media like clay, dyes and paints in the studio based art disciplines inhibit the numerous possibilities available, and confines art education to limited aptitudes and few institutionally expected expressions in pre-tertiary art education in Ghana. Using content analysis, the paper examines the Art Curricula and WAEC examination questions for Art Students at the SHS level. It recommends that, curricula and examination item reviews, as well as the incorporation of visual and material culture into artistic processes through democratization and participations of candidates’ cultural backgrounds, will usher in an art education premised on meaning making and conception, and institutionally groomed cultural ambassadors with significant material and visual diversities and competences.

76 FR 45236 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-07-28

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students with Disabilities AGENCY: Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students with Disabilities, Office of Special Education and...

76 FR 7181 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-02-09

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities AGENCY: Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students with Disabilities, Office of Special Education and...

From the Ground Up: Art in American Built Environment Education.

Science.gov (United States)

Guilfoil, Joanne K.

2000-01-01

Provides a case for teaching children about local architecture. Describes a specific example called the Kentucky Project as a humanist approach to built environmental education that enabled middle and high school students to study their architectural heritage through a program of videos and related teaching materials. (CMK)

Physical dating violence victimization in college women in Chile.

Science.gov (United States)

Lehrer, Jocelyn A; Lehrer, Evelyn L; Zhao, Zhenxiang

2010-05-01

There are no published studies on physical dating violence in college students in Chile, and campuses across the country currently lack systematized programs to prevent or respond to this public health problem. This is the first study to examine prevalence and predictors of physical dating violence victimization with a sample of female college students in Chile. A closed-ended questionnaire was administered to students enrolled in general education courses at a major public university. The prevalence of women's physical dating violence victimization was calculated, and generalized ordered logit models were used to estimate risk factors for such victimization (n = 441). Ancillary analyses examined associations of dating violence victimization with experiences of unwanted sexual contact and forced condom nonuse. Approximately 21% of subjects reported one or more incidents of physical dating violence not involving physical injury since age 14, and another 5% reported at least one incident resulting in physical injury during this time period. Risk factors identified in five sequential models were sexual abuse and witnessing of domestic violence in childhood, low parental education, residence away from the parental home, urban residence, and having had sexual intercourse. Maternal employment and religious participation had protective effects. Dating violence victimization was found to be significantly associated with experiences of unwanted sexual contact and forced condom nonuse. The study findings show a high prevalence of physical dating violence, strong associations between several sociodemographic factors and dating violence, and links between dating violence and sexual/reproductive risk. Our results indicate a need to expand attention to this public health problem in Chile as well as other developing countries, where research and prevention/response initiatives have generally been similarly limited. The findings also have important implications for the content of

Recent advances in thermoluminescence dating

International Nuclear Information System (INIS)

Aitken, M.J.

1984-01-01

Initially the application of thermoluminescent dating was to ancient pottery and other baked clay, the detection of forgeries in art ceramics having a particularly powerful impact. In recent years there has been a growing extension of TL into non-pottery materials. Heated flints from paleolithic fire-places is one application. Another is in the dating of igneous rocks from recent volcanic events; formerly this had been impossible on account of the malign phenomenon of non-thermal ('anomalous') fading exhibited by volcanic minerals but this is now being circumvented by utilising TL in the 600 0 C region of the glow curve. TL dating has also been extended to unburnt calcite, one application being stalagmitic floors in paleolithic caves. Another recent development is the use of TL for dating aeolian sediment and some types of waterborne sediment. These developments give prospect of establishing a TL-based chronology, both for archaeology and quaternary research, extending back well beyond the range of radiocarbon, perhaps reaching a million years ago. (author)

Automation of TL brick dating by ADAM-1

International Nuclear Information System (INIS)

Cechak, T.; Gerndt, J.; Hirsl, P.; Jirousek, P.; Kubelik, M.; Musilek, L.; Kanaval, J.

2000-01-01

Thermoluminescence has become an established dating method for ceramics and more recently for bricks. Based on the experiences of the work carried out since the late 1970's at the Rathgen-Forschungslabor in Berlin on the dating of bricks from historic architecture, and after evaluating all commercially available and some individually built automated and semi-automated TL-readers, a specially adapted machine for the fine grain dating of bricks was constructed in an interdisciplinary research project, undertaken by a team recruited from three faculties of the Czech Technical University in Prague. The result is the automated TL-reader ADAM-1 (Automated Dating Apparatus for Monuments) for the dating of historic architecture. Both the specific adaptation of the technique and the necessary optimal automation have influenced the design of this TL-reader. The principle advantage of brick as opposed to ceramic TL-dating emerges from the possibility of being able to obtain both a large number of samples and an above average quantity of datable material from each sample. This, together with the specific physical and chemical conditions in a brick wall, allowed a rethinking of the traditional error calculation and thus lower error margins as those obtained when dating ceramic shards. The TL-reader must therefore be able to measure and evaluate automatically numerous samples. The annular sample holder of ADAM-1 has 60 sample positions, which allow the irradiation and evaluation of samples taken from two locations. The thirty samples from one sampling point are divided into subgroups, which are processed in various ways. Three samples serve for a rough estimate of the TL sensitivity of the brick material. Nine samples are used for the measurement of 'natural TL' of the material. A further nine samples are used for testing the sensitivity of the material to beta radiation. The last nine samples serve for the testing of the sensitivity to alpha radiation. To determine the

Microwave materials for wireless applications

CERN Document Server

Cruickshank, David B

2011-01-01

This practical resource offers you an in-depth, up-to-date understanding of the use of microwave magnetic materials for cutting-edge wireless applications. The book discusses device applications used in wireless infrastructure base stations, point-to-point radio links, and a range of more specialized microwave systems. You find detailed discussions on the attributes of each family of magnetic materials with respect to specific wireless applications. Moreover, the book addresses two of the hottest topics in the field today - insertion loss and intermodulation. This comprehensive reference also

76 FR 52643 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-08-23

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities AGENCY: U. S. Department of Education, Office of Special Education and Rehabilitative Services, Advisory Commission on Accessible Instructional Materials in...

76 FR 63289 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-10-12

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities AGENCY: U.S. Department of Education, Office of Special Education and Rehabilitative Services, Advisory Commission on Accessible Instructional Materials in...

75 FR 55789 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2010-09-14

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities AGENCY: U.S. Department of Education, Office of Special Education and Rehabilitative Services, Advisory Commission on Accessible Instructional Materials in...

75 FR 80481 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2010-12-22

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students with Disabilities AGENCY: U. S. Department of Education, Office of Special Education and Rehabilitative Services, Advisory Commission on Accessible Instructional Materials in...

76 FR 61349 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-10-04

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities AGENCY: U.S. Department of Education, Office of Special Education and Rehabilitative Services, Advisory Commission on Accessible Instructional Materials in...

Optical stimulated luminescence (OSL) dating

International Nuclear Information System (INIS)

Banerjee, D.

1999-01-01

Since the pioneering work by Huntley et al. (1985), optical dating is being increasingly recognised as an important technique for establishing a time frame of deposition of sediments (Aitken, 1998). Optical dating differs from thermoluminescence (TL) dating in that visible/infrared light from lasers or LEDs (light-emitting-diodes) is used as a means of stimulation, in contrast to thermal stimulation. It has several advantages over TL dating: (i) the resetting of the OSL (optically stimulated luminescence) clock is more effective than that of TL clock; for sediments transported under water or in other situations where the sediment grains have undergone inhomogeneous bleaching, this property ensures that ages based on optical dating are generally more reliable than TL ages, (ii) the optical dating technique is non-destructive, and multiple readouts of the optical signal is possible; this feature has resulted in the development of single-aliquot and single-grain protocols (Murray and Wintle, 1999; Banerjee et al. 1999), (iii) the sample is not heated as in TL; thus, spurious luminescence is avoided and there is a significant reduction in blackbody radiation. Dating of materials which change phase on heating is also practical, and finally, (iv) thermal quenching of luminescence is negligible, allowing accurate estimation of kinetic parameters using standard techniques and providing access to deep OSL traps. This characteristic may be helpful in extending the limits of optical dating beyond the last 150 ka from a global point of view

National Educators' Workshop: Update 95. Standard Experiments in Engineering Materials Science and Technology

Science.gov (United States)

Gardner, James E. (Compiler); Jacobs, James A.; Karnitz, Michael A.

1996-01-01

This document contains a collection of experiments presented and demonstrated at the National Educators' Workshop: Update 95. The experiments related to the nature and properties of engineering materials and provided information to assist in teaching about materials in the education community.

Online Matchmaking: It's Not Just for Dating Sites Anymore! Connecting the Climate Voices Science Speakers Network to Educators

Science.gov (United States)

Wegner, Kristin; Herrin, Sara; Schmidt, Cynthia

2015-01-01

Scientists play an integral role in the development of climate literacy skills - for both teachers and students alike. By partnering with local scientists, teachers can gain valuable insights into the science practices highlighted by the Next Generation Science Standards (NGSS), as well as a deeper understanding of cutting-edge scientific discoveries and local impacts of climate change. For students, connecting to local scientists can provide a relevant connection to climate science and STEM skills. Over the past two years, the Climate Voices Science Speakers Network (climatevoices.org) has grown to a robust network of nearly 400 climate science speakers across the United States. Formal and informal educators, K-12 students, and community groups connect with our speakers through our interactive map-based website and invite them to meet through face-to-face and virtual presentations, such as webinars and podcasts. But creating a common language between scientists and educators requires coaching on both sides. In this presentation, we will present the "nitty-gritty" of setting up scientist-educator collaborations, as well as the challenges and opportunities that arise from these partnerships. We will share the impact of these collaborations through case studies, including anecdotal feedback and metrics.

Quantity of dates trumps quality of dates for dense Bayesian radiocarbon sediment chronologies - Gas ion source 14C dating instructed by simultaneous Bayesian accumulation rate modeling

Science.gov (United States)

Rosenheim, B. E.; Firesinger, D.; Roberts, M. L.; Burton, J. R.; Khan, N.; Moyer, R. P.

2016-12-01

Radiocarbon (14C) sediment core chronologies benefit from a high density of dates, even when precision of individual dates is sacrificed. This is demonstrated by a combined approach of rapid 14C analysis of CO2 gas generated from carbonates and organic material coupled with Bayesian statistical modeling. Analysis of 14C is facilitated by the gas ion source on the Continuous Flow Accelerator Mass Spectrometry (CFAMS) system at the Woods Hole Oceanographic Institution's National Ocean Sciences Accelerator Mass Spectrometry facility. This instrument is capable of producing a 14C determination of +/- 100 14C y precision every 4-5 minutes, with limited sample handling (dissolution of carbonates and/or combustion of organic carbon in evacuated containers). Rapid analysis allows over-preparation of samples to include replicates at each depth and/or comparison of different sample types at particular depths in a sediment or peat core. Analysis priority is given to depths that have the least chronologic precision as determined by Bayesian modeling of the chronology of calibrated ages. Use of such a statistical approach to determine the order in which samples are run ensures that the chronology constantly improves so long as material is available for the analysis of chronologic weak points. Ultimately, accuracy of the chronology is determined by the material that is actually being dated, and our combined approach allows testing of different constituents of the organic carbon pool and the carbonate minerals within a core. We will present preliminary results from a deep-sea sediment core abundant in deep-sea foraminifera as well as coastal wetland peat cores to demonstrate statistical improvements in sediment- and peat-core chronologies obtained by increasing the quantity and decreasing the quality of individual dates.

Up-to-date probabilistic temperature climatologies

International Nuclear Information System (INIS)

Krakauer, Nir Y; Devineni, Naresh

2015-01-01

With ongoing global warming, climatologies based on average past temperatures are increasingly recognized as imperfect guides for current conditions, yet there is no consensus on alternatives. Here, we compare several approaches to deriving updated expected values of monthly mean temperatures, including moving average, exponentially weighted moving average, and piecewise linear regression. We go beyond most previous work by presenting updated climate normals as probability distributions rather than only point estimates, enabling estimation of the changing likelihood of hot and cold extremes. We show that there is a trade-off between bias and variance in these approaches, but that bias can be mitigated by an additive correction based on a global average temperature series, which has much less interannual variability than a single-station series. Using thousands of monthly temperature time series from the Global Historical Climatology Network (GHCN), we find that the exponentially weighted moving average with a timescale of 15 years and global bias correction has good overall performance in hindcasting temperatures over the last 30 years (1984–2013) compared with the other methods tested. Our results suggest that over the last 30 years, the likelihood of extremely hot months (above the 99th percentile of the temperature probability distribution as of the early 1980s) has increased more than fourfold across the GHCN stations, whereas the likelihood of very cold months (under the 1st percentile) has decreased by over two-thirds. (letter)

Radiopacity and microhardness changes and effect of X-ray operating voltage in resin-based materials before and after the expiration date

Directory of Open Access Journals (Sweden)

Tirapelli Camila

2004-01-01

Full Text Available This study observed alteration in the radiopacity and microhardness of expired resin-based materials compared to non-expired materials and the operating characteristics of the X-ray source used. Five 2 mm-thick cured specimens were prepared for each material: composite resins (P60®, Z100®, and a compomer (Dyract AP®. Radiopacity of the specimens was evaluated comparing the density of the resin-based material to an equivalent (mm density of a 99.5% pure aluminum step wedge using a transmission densitometer. Surface microhardness measurements were carried out using a calibrated Vickers indenter on three different points of the same surface. ANOVA and Tukey tests (pre-set alpha = 0.05 revealed that expired materials showed no significant change in radiopacity. One material (Filtek P60 demonstrated lower radiopacity with lower KVp. Change in microhardness wa s statistically significant for Z100: for this material, the microhardness after expiration was significantly lower than before the expiration date.

LGBT Students Want Educators to Speak up for Them

Science.gov (United States)

Young, Abe Louise

2011-01-01

Changing a school's culture with regard to how it treats lesbian, gay, bisexual and transgender students can seem impossible, the author says. Educators must take the temperature of a school climate, map a route, establish rules, and hand out safety gear. Mostly, changing that climate will require educators to listen closely to students and hear…

REIMEP-22 inter-laboratory comparison. ''U Age Dating - determination of the production date of a uranium certified test sample''

Energy Technology Data Exchange (ETDEWEB)

Venchiarutti, Celia; Richter, Stephan; Jakopic, Rozle; Aregbe, Yetunde [European Commission, Joint Research Centre (JRC), Geel (Belgium). Institute for Reference Materials and Measurements (IRMM); Varga, Zsolt; Mayer, Klaus [European Commission, Joint Research Centre (JRC), Karlsruhe (Germany). Institute for Transuranium Elements (ITU)

2015-07-01

The REIMEP-22 inter-laboratory comparison aimed at determining the production date of a uranium certified test sample (i.e. the last chemical separation date of the material). Participants in REIMEP-22 on ''U Age Dating - Determination of the production date of a uranium certified test sample'' received one low-enriched 20 mg uranium sample for mass spectrometry measurements and/or one 50 mg uranium sample for a-spectrometry measurements, with an undisclosed value for the production date. They were asked to report the isotope amount ratios n({sup 230}Th)/n({sup 234}U) for the 20 mg uranium sample and/or the activity ratios A({sup 230}Th)/A({sup 234}U) for the 50 mg uranium sample in addition to the calculated production date of the certified test samples with its uncertainty. Reporting of the {sup 231}Pa/{sup 235}U ratio and the respective calculated production date was optional. Eleven laboratories reported results in REIMEP-22. Two of them reported results for both the 20 mg and 50 mg uranium certified test samples. The measurement capability of the participants was assessed against the independent REIMEP-22 reference value by means of z- and zeta-scores in compliance with ISO 13528:2005. Furthermore a performance assessment criterion for acceptable uncertainty was applied to evaluate the participants' results. In general, the REIMEP-22 participants' results were satisfactory. This confirms the analytical capabilities of laboratories to determine accurately the age of uranium materials with low amount of ingrown thorium (young certified test sample). The Joint Research Centre of the European Commission (EC-JRC) organised REIMEP-22 in parallel to the preparation and certification of a uranium reference material certified for the production date (IRMM-1000a and IRMM-1000b).

Annual radiation dose in thermoluminescence dating

International Nuclear Information System (INIS)

Li Huhou

1988-01-01

The annual radiation dose in thermoluminescence dating has been discussed. The autor gives an entirely new concept of the enviromental radiation in the thermoluminescence dating. Methods of annual dose detemination used by author are dating. Methods of annual dose determination used by author are summed up, and the results of different methods are compared. The emanium escapiug of three radioactive decay serieses in nature has been considered, and several determination methods are described. The contribution of cosmic rays for the annual radiation dose has been mentioned

Annual radiation dose in thermoluminescence dating

Energy Technology Data Exchange (ETDEWEB)

Huhou, Li [Chinese Academy of Social Sciences, Beijing, BJ (China). Inst. of Archaeology

1988-11-01

The annual radiation dose in thermoluminescence dating has been discussed. The autor gives an entirely new concept of the enviromental radiation in the thermoluminescence dating. Methods of annual dose detemination used by author are dating. Methods of annual dose determination used by author are summed up, and the results of different methods are compared. The emanium escapiug of three radioactive decay serieses in nature has been considered, and several determination methods are described. The contribution of cosmic rays for the annual radiation dose has been mentioned.

Evaluating the complexity of online patient education materials about brain aneurysms published by major academic institutions.

Science.gov (United States)

Gupta, Raghav; Adeeb, Nimer; Griessenauer, Christoph J; Moore, Justin M; Patel, Apar S; Kim, Christopher; Thomas, Ajith J; Ogilvy, Christopher S

2017-08-01

OBJECTIVE Health care education resources are increasingly available on the Internet. A majority of people reference these resources at one point or another. A threshold literacy level is needed to comprehend the information presented within these materials. A key component of health literacy is the readability of educational resources. The National Institutes of Health (NIH) and the American Medical Association have recommended that patient education materials be written between a 4th- and a 6th-grade education level. The authors assessed the readability of online patient education materials about brain aneurysms that have been published by several academic institutions across the US. METHODS Online patient education materials about brain aneurysms were downloaded from the websites of 20 academic institutions. The materials were assessed via 8 readability scales using Readability Studio software (Oleander Software Solutions), and then were statistically analyzed. RESULTS None of the patient education materials were written at or below the NIH's recommended 6th-grade reading level. The average educational level required to comprehend the texts across all institutions, as assessed by 7 of the readability scales, was 12.4 ± 2.5 (mean ± SD). The Flesch Reading Ease Scale classified the materials as "difficult" to understand, correlating with a college-level education or higher. An ANOVA test found that there were no significant differences in readability among the materials from the institutions (p = 0.215). CONCLUSIONS Brain aneurysms affect 3.2% of adults 50 years or older across the world and can cause significant patient anxiety and uncertainty. Current patient education materials are not written at or below the NIH's recommended 4th- to 6th-grade education level.

Second Life: an overview of the potential of 3-D virtual worlds in medical and health education.

Science.gov (United States)

Boulos, Maged N Kamel; Hetherington, Lee; Wheeler, Steve

2007-12-01

This hybrid review-case study introduces three-dimensional (3-D) virtual worlds and their educational potential to medical/health librarians and educators. Second life (http://secondlife.com/) is perhaps the most popular virtual world platform in use today, with an emphasis on social interaction. We describe some medical and health education examples from Second Life, including Second Life Medical and Consumer Health Libraries (Healthinfo Island-funded by a grant from the US National Library of Medicine), and VNEC (Virtual Neurological Education Centre-developed at the University of Plymouth, UK), which we present as two detailed 'case studies'. The pedagogical potentials of Second Life are then discussed, as well as some issues and challenges related to the use of virtual worlds. We have also compiled an up-to-date resource page (http://healthcybermap.org/sl.htm), with additional online material and pointers to support and extend this study.

Using OPeNDAP's Data-Services Framework to Lift Mash-Ups above Blind Dates

Science.gov (United States)

Gallagher, J. H. R.; Fulker, D. W.

2015-12-01

OPeNDAP's data-as-service framework (Hyrax) matches diverse sources with many end-user tools and contexts. Keys to its flexibility include: A data model embracing tabular data alongside n-dim arrays and other structures useful in geoinformatics. A REST-like protocol that supports—via suffix notation—a growing set of output forms (netCDF, XML, etc.) plus a query syntax for subsetting. Subsetting applies (via constraints on column values) to tabular data or (via constraints on indices or coordinates) to array-style data . A handler-style architecture that admits a growing set of input types. Community members may contribute handlers, making Hyrax effective as middleware, where N sources are mapped to M outputs with order N+M effort (not NxM). Hyrax offers virtual aggregations of source data, enabling granularity aimed at users, not data-collectors. OPeNDAP-access libraries exist in multiple languages, including Python, Java, and C++. Recent enhancements are increasing this framework's interoperability (i.e., its mash-up) potential. Extensions implemented as servlets—running adjacent to Hyrax—are enriching the forms of aggregation and enabling new protocols: User-specified aggregations, namely, applying a query to (huge) lists of source granules, and receiving one (large) table or zipped netCDF file. OGC (Open Geospatial Consortium) protocols, WMS and WCS. A Webification (W10n) protocol that returns JavaScript Object Notation (JSON). Extensions to OPeNDAP's query language are reducing transfer volumes and enabling new forms of inspection. Advances underway include: Functions that, for triangular-mesh sources, return sub-meshes spec'd via geospatial bounding boxes. Functions that, for data from multiple, satellite-borne sensors (with differing orbits), select observations based on coincidence. Calculations of means, histograms, etc. that greatly reduce output volumes.. Paths for communities to contribute new server functions (in Python, e.g.) that data

[How Can We Cuddle Up to Dying Patients? Attempts of Cancer Philosophy Clinic and Education].

Science.gov (United States)

Yamada, Keisuke

2016-03-01

What is needed to treat problems about how can we cuddle up to dying patients is not scientific thinking but philosophical thinking. Cancer philosophy clinic is a place where both patients and medical staffs think about death and how to live until death. The author tries to manage cancer philosophy clinic with the idea of logotherapy and terminal art. The author also tries to educate medical students and other medical staffs in cancer philosophy.

Development of an audiovisual teaching material for radiation management education of licenceholders

International Nuclear Information System (INIS)

Chae, Sung Ki; Park, Tai Jin; Lim, Ki Joong; Jung, Ho Sup; Jun, Sung Youp; Kim, Jung Keun; Heo, Pil Jong; Jang, Han Ki

2007-02-01

This study aims at developing an audiovisual teaching material for elevating their abilities for radiation management during the legal education of the licenceholder about radiation and radioisotope. It also aims at developing an educational video material for the RSO in radiation safety management and RI handing. The role or duty, which was needed for the activities of the regulation and management in real fields, of the licenceholder was introduced by referring the medical field and the audiovisual teaching material was then developed by presenting the examples of management in real fields. The procedures of management were analyzed by reflecting the working tables of the supervisors for radiation management in the licensed companies, the working list was divided into the main subjects of 10 and the each main subject was then also divided into the detailed subjects of 103. Based on the detailed subjects, the points of sameness and difference for the management in the educational, researching and medical fields were analyzed and the content of the material was then determined according to the points of sameness and difference. In addition, the material emphasized the effect resulted in the actual education as compared with the existing audiovisual materials. The contents of the material are as follows : regulation of radiation safety, duty of radiation safety management - management of working members, management of facilities, management of sources

Development of an audiovisual teaching material for radiation management education of licenceholders

Energy Technology Data Exchange (ETDEWEB)

Chae, Sung Ki; Park, Tai Jin; Lim, Ki Joong; Jung, Ho Sup; Jun, Sung Youp; Kim, Jung Keun; Heo, Pil Jong [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of); Jang, Han Ki [Hanyang Univ., Seoul (Korea, Republic of)

2007-02-15

This study aims at developing an audiovisual teaching material for elevating their abilities for radiation management during the legal education of the licenceholder about radiation and radioisotope. It also aims at developing an educational video material for the RSO in radiation safety management and RI handing. The role or duty, which was needed for the activities of the regulation and management in real fields, of the licenceholder was introduced by referring the medical field and the audiovisual teaching material was then developed by presenting the examples of management in real fields. The procedures of management were analyzed by reflecting the working tables of the supervisors for radiation management in the licensed companies, the working list was divided into the main subjects of 10 and the each main subject was then also divided into the detailed subjects of 103. Based on the detailed subjects, the points of sameness and difference for the management in the educational, researching and medical fields were analyzed and the content of the material was then determined according to the points of sameness and difference. In addition, the material emphasized the effect resulted in the actual education as compared with the existing audiovisual materials. The contents of the material are as follows : regulation of radiation safety, duty of radiation safety management - management of working members, management of facilities, management of sources.

TL-dating applied to building archaeology: The case of the medieval church Notre-Dame-Sous-Terre (Mont-Saint-Michel, France)

Energy Technology Data Exchange (ETDEWEB)

Blain, Sophie [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France); Luminescence Laboratory, Department of Archaeology, University of Durham, South Road, DH1 3LE Durham (United Kingdom)], E-mail: blain.sophie@gmail.com; Guibert, Pierre [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France)], E-mail: guibert@u-bordeaux3.fr; Bouvier, Armel [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France)], E-mail: bouvier_armel@yahoo.fr; Vieillevigne, Emmanuelle [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France)], E-mail: evieillevign@u-bordeaux3.fr; Bechtel, Francoise [IRAMAT-CRP2A-UMR 5060, CNRS-Universite de Bordeaux 3, Maison de l' Archeologie, F-33 607 Pessac (France); Sapin, Christian [Laboratoire Archeologie, Culture et Societe-UMR 8894, CNRS-Universite de Bourgogne, Dijon (France)], E-mail: sapin.christian@wanadoo.fr; Bayle, Maylis [Laboratoire de medievistique occidentale de Paris, UMR 8589, CNRS-Universite de Paris 1 (France)], E-mail: maylis.bayle@wanadoo.fr

2007-10-15

The recent application of thermoluminescence (TL) dating to young building materials is being increasingly developed for use in the field of buildings archaeology [; ; ]. Ensuring the accuracy of the dating method is of the utmost importance in order to achieve results which are pertinent enough to have archaeological significance. This paper deals with an archaeological building study of the first church built on the Mont-Saint-Michel (France) and improvements made to the TL-protocol in Bordeaux. The aim is to achieve precise dates for the material under analysis and therefore, a better understanding of the evolution of the building. For this study, 14 bricks have been sampled from eight different masonries and submitted for TL dating analysis. With the exception of one sample which appears to be non-contemporaneous to the others, the date results range from 900{+-}80 to 1020{+-}60 AD. The results were then averaged according to the two phases established by the archaeological building study. The first two stages of the primitive church both date from the 10th century.

TL-dating applied to building archaeology: The case of the medieval church Notre-Dame-Sous-Terre (Mont-Saint-Michel, France)

International Nuclear Information System (INIS)

Blain, Sophie; Guibert, Pierre; Bouvier, Armel; Vieillevigne, Emmanuelle; Bechtel, Francoise; Sapin, Christian; Bayle, Maylis

2007-01-01

The recent application of thermoluminescence (TL) dating to young building materials is being increasingly developed for use in the field of buildings archaeology [; ; ]. Ensuring the accuracy of the dating method is of the utmost importance in order to achieve results which are pertinent enough to have archaeological significance. This paper deals with an archaeological building study of the first church built on the Mont-Saint-Michel (France) and improvements made to the TL-protocol in Bordeaux. The aim is to achieve precise dates for the material under analysis and therefore, a better understanding of the evolution of the building. For this study, 14 bricks have been sampled from eight different masonries and submitted for TL dating analysis. With the exception of one sample which appears to be non-contemporaneous to the others, the date results range from 900±80 to 1020±60 AD. The results were then averaged according to the two phases established by the archaeological building study. The first two stages of the primitive church both date from the 10th century

Interacting with a Suite of Educative Features: Elementary Science Teachers' Use of Educative Curriculum Materials

Science.gov (United States)

Arias, Anna Maria; Bismack, Amber Schultz; Davis, Elizabeth A.; Palincsar, Annemarie Sullivan

2016-01-01

New reform documents underscore the importance of learning both the practices and content of science. This integration of practices and content requires sophisticated teaching that does not often happen in elementary classrooms. Educative curriculum materials--materials explicitly designed to support teacher and student learning--have been posited…

Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment and technology: A further communication, dated 2 December 1992

International Nuclear Information System (INIS)

1993-01-01

The document reproduces the Note Verbale dated 2 December 1992 received by the Director General of the IAEA from the Permanent Mission of Argentina and relating to the report of nuclear material, equipment and technology

Federal programs for the Elementary School and the materialization of everybody’s right to an education of quality

Directory of Open Access Journals (Sweden)

Elton Luiz Nardi

2017-01-01

Full Text Available This paper aims at analyzing the congruence between federal programs towards the regular elementary school and the reinforcement of conditions that imply the materialization of everybody‟s right to an education of quality. The paper considers data from 2007, 2009, 2011 and 2013 about access and permanence in school, quality of elementary school officially checked and programs created by the federal government when exercising its supplementary redistributive action. Even though the results suggest an adequacy of the set of programs according to variables that inform the educational and social difference in the country, they raise some questions regarding the potential to face more specific challenges of each stage of basic education. The conclusion highlights that a greater alignment between the programs and demands, in terms of guaranteeing access and permanence in school, constitutes a fundamental action to reinforce the congruence between elected programs and the materialization of the right to an education of quality.

Heads Up to High School Sports

Science.gov (United States)

... submit" value="Submit" /> HEADS UP to School Sports Recommend on Facebook Tweet Share Compartir To help ... organizations, developed the HEADS UP: Concussion in School Sports initiative and materials. Specific Concussion Information for... Coaches ...

Organic optoelectronic materials

CERN Document Server

Li, Yongfang

2015-01-01

This volume reviews the latest trends in organic optoelectronic materials. Each comprehensive chapter allows graduate students and newcomers to the field to grasp the basics, whilst also ensuring that they have the most up-to-date overview of the latest research. Topics include: organic conductors and semiconductors; conducting polymers and conjugated polymer semiconductors, as well as their applications in organic field-effect-transistors; organic light-emitting diodes; and organic photovoltaics and transparent conducting electrodes. The molecular structures, synthesis methods, physicochemical and optoelectronic properties of the organic optoelectronic materials are also introduced and described in detail. The authors also elucidate the structures and working mechanisms of organic optoelectronic devices and outline fundamental scientific problems and future research directions. This volume is invaluable to all those interested in organic optoelectronic materials.

Scaling up Education Reform: Addressing the Politics of Disparity

Science.gov (United States)

Bishop, Russell; O'Sullivan, Dominic; Berryman, Mere

2010-01-01

What is school reform? What makes it sustainable? Who needs to be involved? How is scaling up achieved? This book is about the need for educational reforms that have built into them, from the outset, those elements that will see them sustained in the original sites and spread to others. Using the Te Kotahitanga Project as a model the authors…

The readability of pediatric patient education materials on the World Wide Web.

Science.gov (United States)

D'Alessandro, D M; Kingsley, P; Johnson-West, J

2001-07-01

Literacy is a national and international problem. Studies have shown the readability of adult and pediatric patient education materials to be too high for average adults. Materials should be written at the 8th-grade level or lower. To determine the general readability of pediatric patient education materials designed for adults on the World Wide Web (WWW). GeneralPediatrics.com (http://www.generalpediatrics.com) is a digital library serving the medical information needs of pediatric health care providers, patients, and families. Documents from 100 different authoritative Web sites designed for laypersons were evaluated using a built-in computer software readability formula (Flesch Reading Ease and Flesch-Kincaid reading levels) and hand calculation methods (Fry Formula and SMOG methods). Analysis of variance and paired t tests determined significance. Eighty-nine documents constituted the final sample; they covered a wide spectrum of pediatric topics. The overall Flesch Reading Ease score was 57.0. The overall mean Fry Formula was 12.0 (12th grade, 0 months of schooling) and SMOG was 12.2. The overall Flesch-Kincaid grade level was significantly lower (Peducation materials on the WWW are not written at an appropriate reading level for the average adult. We propose that a practical reading level and how it was determined be included on all patient education materials on the WWW for general guidance in material selection. We discuss suggestions for improved readability of patient education materials.

Converting from EtO to radiation sterilization: educating the medical supply industry

Energy Technology Data Exchange (ETDEWEB)

Bedward, D.A.; Brinston, R.M.; Kotler, J. [Nordion International Inc., Ontario (Canada)

1995-10-01

This paper examines some relevant factors influencing the conversion from ethylene oxide sterilization to gamma sterilization. Marketing tactics to promote and stimulate this activity are reviewed. TEAM GAMMA, an educational vehicle developed by Norion International Inc., is described from the concept acceptance to the very positive results obtained. The structure of this multi disciplinary team of consultants is described. Topics presented by this team include sterilization basics, material compatability, device design manufacturing and other aspects of the sterilization process. It is concluded that assisting in the education of the medical device manufacturers regarding the conversion from EtO to gamma processing provides payback for Nordion and the gamma processing industry. This assessment is based on the results of the ten seminars presented to date. (author).

Converting from EtO to radiation sterilization: educating the medical supply industry

International Nuclear Information System (INIS)

Bedward, D.A.; Brinston, R.M.; Kotler, J.

1995-01-01

This paper examines some relevant factors influencing the conversion from ethylene oxide sterilization to gamma sterilization. Marketing tactics to promote and stimulate this activity are reviewed. TEAM GAMMA, an educational vehicle developed by Norion International Inc., is described from the concept acceptance to the very positive results obtained. The structure of this multi disciplinary team of consultants is described. Topics presented by this team include sterilization basics, material compatability, device design manufacturing and other aspects of the sterilization process. It is concluded that assisting in the education of the medical device manufacturers regarding the conversion from EtO to gamma processing provides payback for Nordion and the gamma processing industry. This assessment is based on the results of the ten seminars presented to date. (author)

Qualitative Advances of China's Basic Education since Reform and Opening up: A Brief Overview

Science.gov (United States)

Tao, Xin; Chunhua, Kang

2012-01-01

Basic education is universal education, which aims to improve the basic quality of a nation's people. In the three decades since reform and opening up, earth-shaking changes have taken place in the quality of China's basic education. This article describes the path of development and changes in China's basic education over the past thirty years…

Reframing conceptual physics: Improving relevance to elementary education and sonography majors

Science.gov (United States)

LaFazia, David Gregory

This study outlines the steps taken to reframe the Waves and Periodicity unit within a conceptual physics course. Beyond this unit reframing process, this paper explores the activities that made up the reframed unit and how each was developed and revised. The unit was reframed to improve relevance of the activities to the Elementary Education and Diagnostic Medical Sonography majors who make up the bulk of the course roster. The unit was reframed around ten design principles that were built on best practices from the literature, survey responses, and focused interviews. These principles support the selection of a biology-integrated themed approach to teaching physics. This is done through active and highly kinesthetic learning across three realms of human experience: physical, social, and cognitive. The unit materials were designed around making connections to students' future careers while requiring students to take progressively more responsibility in activities and assessments. Several support strategies are employed across these activities and assessments, including an energy-first, guided-inquiry approach to concept scaffolding and accommodations for diverse learners. Survey responses were solicited from physics instructors experienced with this population, Elementary Education and Sonography program advisors, and curriculum design, learning strategies, and educational technology experts. The reframed unit was reviewed by doctoral-level science education experts and revised to further improve the depth and transparency with which the design principles reframe the unit activities. The reframed unit contains a full unit plan, lesson plans, and full unit materials. These include classroom and online activities, assessments, and templates for future unit and lesson planning. Additional supplemental materials are provided to support Elementary Education and Sonography students and program advisors and also further promote the reframed unit materials and design

Structured education to improve primary-care management of headache: how long do the benefits last? A follow-up observational study.

Science.gov (United States)

Braschinsky, M; Haldre, S; Kals, M; Arge, M; Saar, B; Niibek, M; Katsarava, Z; Steiner, T J

2018-03-01

Our earlier study showed that structured education of general practitioners (GPs) improved their practice in headache management. Here the duration of this effect was assessed. In a follow-up observational study in southern Estonia, subjects were the same six GPs as previously, managing patients presenting with headache as the main complaint. Data reflecting their practice were collected prospectively during a 1-year period commencing 2 years after the educational intervention. The primary outcome measure was referral rate (RR) to neurological services. Comparisons were made with baseline and post-intervention data from the earlier study. In 366 patients consulting during the follow-up period, the RR was 19.9%, lower than at baseline (39.5%; P betterment. A few measures suggest the beginnings of a decline towards baseline levels. This policy-informing evidence for continuing medical education indicates that the educational programme needs repeating every 2-3 years. © 2017 EAN.

Designing Educative Curriculum Materials: A Theoretically and Empirically Driven Process

Science.gov (United States)

Davis, Elizabeth A.; Palincsar, Annemarie Sullivan; Arias, Anna Maria; Bismack, Amber Schultz; Marulis, Loren M.; Iwashyna, Stefanie K.

2014-01-01

In this article, the authors argue for a design process in the development of educative curriculum materials that is theoretically and empirically driven. Using a design-based research approach, they describe their design process for incorporating educative features intended to promote teacher learning into existing, high-quality curriculum…

76 FR 14385 - Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students...

Science.gov (United States)

2011-03-16

... DEPARTMENT OF EDUCATION Advisory Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities Meeting AGENCY: Advisory Commission on Accessible Instructional... Commission on Accessible Instructional Materials in Postsecondary Education for Students With Disabilities...

APPROACHES TO ICT TERMINOLOGY IN THE SCIENTIFIC AND PEDAGOGICAL REGISTER OF CROATIAN UNIVERSITY EDUCATIONAL MATERIALS

Directory of Open Access Journals (Sweden)

Daniela Matić

2017-01-01

Full Text Available This paper analyzes examples of ICT terminology sampled from Croatian university textbooks and educational materials published from the year 2001 to 2015 and recommended for undergraduate and graduate students at Croatian universities. The collection includes: Croatian calques; standalone neologisms and those followed by an English equivalent; translated English metaphorical expressions; hybrids without translations; orthographically, phonologically/phonetically and morphologically adapted Anglicisms and those which can be integrated into the Croatian standard without any adaptation; and multi-word Croatian equivalents with single-word English and with multi-word English equivalents. Some of the English expressions were italicized or bolded and some not. The aim of our analysis was to describe current practices in writing educational materials, to establish the nature of the university materials authors’ relation towards English and Croatian expressions, and to find out if there was some pattern in the use of Croatian and English ICT terms which the authors had followed. During the analysis, we observed a lack of consistent and systematic approach to the creation of materials, a shift from the norms of the standard Croatian language and resorting to non-adapted or slightly adapted English terms which seem to be often favored over the Croatian ones. We are of the opinion that corpus planning and better management of terminology, adaptation and integration processes within a more modern language policy framework could bring much needed stability to the Croatian scientific and pedagogical register.

Correction procedures for C-14 dates

International Nuclear Information System (INIS)

McKerrell, H.

1975-01-01

There are two quite separate criteria to satisfy before accepting as valid the corrections to C-14 dates which have been indicated for some years now by the bristlecone pine calibration. Firstly the correction figures have to be based upon all the available tree-ring data and derived in a manner that is mathematically sound, and secondly the correction figures have to produce accurate results on C-14 dates from archaeological test samples of known historical date, these covering as wide a period as possible. Neither of these basic prerequisites has yet been fully met. Thus the two-fold purpose of this paper is to bring together, and to compare with an independently based procedure, the various correction curves or tables that have been published up to Spring 1974, as well as to detail the correction results on reliable, historically dated Egyptian, Helladic and Minoan test samples from 3100 B.C. The nomenclature followed is strictly that adopted by the primary dating journal Radiocarbon, all C-14 dates quoted thus relate to the 5568 year half-life and the standard AD/BC system. (author)

TL and EPR dating: some applications

Energy Technology Data Exchange (ETDEWEB)

Watanabe, S. [Institute of Physics, University of Sao Paulo, Sao Paulo (Brazil)

2006-07-01

The intensity of thermoluminescence light emitted by a crystal is a function of radiation dose. The number of defects or of radicals in a crystal or organic substances is also a function of radiation dose. Since such defects or radicals present EPR signals, the EPR intensity is also a function of radiation dose. These facts are basis for radiation dosimetry and can be applied in dating of archaeological potteries or other materials, as well as in dating geological substances such as sediments, caves speleothemes, animal teeth and bones. Recent investigation on sensitized quartz based dosimeters and dating calcite covering ancient wall painting to find early settlers in Brazil will be presented. (Author)

Designing Web-Based Educative Curriculum Materials for the Social Studies

Science.gov (United States)

Callahan, Cory; Saye, John; Brush, Thomas

2013-01-01

This paper reports on a design experiment of web-based curriculum materials explicitly created to help social studies teachers develop their professional teaching knowledge. Web-based social studies curriculum reform efforts, human-centered interface design, and investigations into educative curriculum materials are reviewed, as well as…

Molecular diagnostics for Chagas disease: up to date and novel methodologies.

Science.gov (United States)

Alonso-Padilla, Julio; Gallego, Montserrat; Schijman, Alejandro G; Gascon, Joaquim

2017-07-01

Chagas disease is caused by the parasite Trypanosoma cruzi. It affects 7 million people, mainly in Latin America. Diagnosis is usually made serologically, but at some clinical scenarios serology cannot be used. Then, molecular detection is required for early detection of congenital transmission, treatment response follow up, and diagnosis of immune-suppression reactivation. However, present tests are technically demanding and require well-equipped laboratories which make them unfeasible in low-resources endemic regions. Areas covered: Available molecular tools for detection of T. cruzi DNA, paying particular attention to quantitative PCR protocols, and to the latest developments of user-friendly molecular diagnostic methodologies. Expert commentary: In the absence of appropriate biomarkers, molecular diagnosis is the only option for the assessment of treatment response. Besides, it is very useful for the early detection of acute infections, like congenital cases. Since current Chagas disease molecular tests are restricted to referential labs, research efforts must focus in the implementation of easy-to-use diagnostic tools in order to overcome the access to diagnosis gap.