WorldWideScience

Sample records for valuable digital tool

  1. English Digital Dictionaries as Valuable Blended Learning Tools for Palestinian College Students

    Science.gov (United States)

    Dwaik, Raghad A. A.

    2015-01-01

    Digital technology has become an indispensable aspect of foreign language learning around the globe especially in the case of college students who are often required to finish extensive reading assignments within a limited time period. Such pressure calls for the use of efficient tools such as digital dictionaries to help them achieve their…

  2. Digital Tectonic Tools

    DEFF Research Database (Denmark)

    Schmidt, Anne Marie Due

    2005-01-01

    Tectonics has been an inherent part of the architectural field since the Greek temples while the digital media is new to the field. This paper is built on the assumption that in the intermediate zone between the two there is a lot to be learned about architecture in general and the digital media...... in particular. A model of the aspects in the term tectonics – epresentation, ontology and culture – will be presented and used to discuss the current digital tools’ ability in tectonics. Furthermore it will be discussed what a digital tectonic tool is and could be and how a connection between the digital...... and tectonic could become a part of the architectural education....

  3. The AACSB: A Valuable Tool for the Language Educator.

    Science.gov (United States)

    Bush-Bacelis, Jean L.

    The American Assembly of Collegiate Schools of Business (AACSB), an accrediting agency, may be an overlooked tool for establishing rationale and credibility for globalization of business courses. The 245 member institutions are bound by the agency's accrediting requirements, and many others are influenced by the standards set in those…

  4. Teaching resources in speleology and karst: a valuable educational tool

    Directory of Open Access Journals (Sweden)

    De Waele Jo

    2010-01-01

    Full Text Available There is a growing need in the speleological community of tools that make teaching of speleology and karst much easier. Despite the existence of a wide range of major academic textbooks, often the caver community has a difficult access to such material. Therefore, to fill this gap, the Italian Speleological Society, under the umbrella of the Union International de Spéléologie, has prepared a set of lectures, in a presentation format, on several topics including geology, physics, chemistry, hydrogeology, mineralogy, palaeontology, biology, microbiology, history, archaeology, artificial caves, documentation, etc. These lectures constitute the “Teaching Resources in Speleology and Karst”, available online. This educational tool, thanks to its easily manageable format, can constantly be updated and enriched with new contents and topics.

  5. The program success story: a valuable tool for program evaluation.

    Science.gov (United States)

    Lavinghouze, Rene; Price, Ann Webb; Smith, Kisha-Ann

    2007-10-01

    Success stories are evaluation tools that have been used by professionals across disciplines for quite some time. They are also proving to be useful in promoting health programs and their accomplishments. The increasing popularity of success stories is due to the innovative and effective way that they increase a program's visibility, while engaging potential participants, partners, and funders in public health efforts. From the community level to the federal level, program administrators are using success stories as vehicles for celebrating achievements, sharing challenges, and communicating lessons learned. Success stories are an effective means to move beyond the numbers and connect to readers-with a cause they can relate to and want to join. This article defines success stories and provides an overview of several types of story formats, how success stories can be systematically collected, and how they are used to communicate program success.

  6. Hypnosis as a Valuable Tool for Surgical Procedures in the Oral and Maxillofacial Area.

    Science.gov (United States)

    Montenegro, Gil; Alves, Luiza; Zaninotto, Ana Luiza; Falcão, Denise Pinheiro; de Amorim, Rivadávio Fernandes Batista

    2017-04-01

    Hypnosis is a valuable tool in the management of patients who undergo surgical procedures in the maxillofacial complex, particularly in reducing and eliminating pain during surgery and aiding patients who have dental fear and are allergic to anesthesia. This case report demonstrates the efficacy of hypnosis in mitigating anxiety, bleeding, and pain during dental surgery without anesthesia during implant placement of tooth 14, the upper left first molar.

  7. Professional Regulation: A Potentially Valuable Tool in Responding to “Stem Cell Tourism”

    Directory of Open Access Journals (Sweden)

    Amy Zarzeczny

    2014-09-01

    Full Text Available The growing international market for unproven stem cell-based interventions advertised on a direct-to-consumer basis over the internet (“stem cell tourism” is a source of concern because of the risks it presents to patients as well as their supporters, domestic health care systems, and the stem cell research field. Emerging responses such as public and health provider-focused education and national regulatory efforts are encouraging, but the market continues to grow. Physicians play a number of roles in the stem cell tourism market and, in many jurisdictions, are members of a regulated profession. In this article, we consider the use of professional regulation to address physician involvement in stem cell tourism. Although it is not without its limitations, professional regulation is a potentially valuable tool that can be employed in response to problematic types of physician involvement in the stem cell tourism market.

  8. MALDI TOF imaging mass spectrometry in clinical pathology: a valuable tool for cancer diagnostics (review).

    Science.gov (United States)

    Kriegsmann, Jörg; Kriegsmann, Mark; Casadonte, Rita

    2015-03-01

    Matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) imaging mass spectrometry (IMS) is an evolving technique in cancer diagnostics and combines the advantages of mass spectrometry (proteomics), detection of numerous molecules, and spatial resolution in histological tissue sections and cytological preparations. This method allows the detection of proteins, peptides, lipids, carbohydrates or glycoconjugates and small molecules.Formalin-fixed paraffin-embedded tissue can also be investigated by IMS, thus, this method seems to be an ideal tool for cancer diagnostics and biomarker discovery. It may add information to the identification of tumor margins and tumor heterogeneity. The technique allows tumor typing, especially identification of the tumor of origin in metastatic tissue, as well as grading and may provide prognostic information. IMS is a valuable method for the identification of biomarkers and can complement histology, immunohistology and molecular pathology in various fields of histopathological diagnostics, especially with regard to identification and grading of tumors.

  9. Professional regulation: a potentially valuable tool in responding to "stem cell tourism".

    Science.gov (United States)

    Zarzeczny, Amy; Caulfield, Timothy; Ogbogu, Ubaka; Bell, Peter; Crooks, Valorie A; Kamenova, Kalina; Master, Zubin; Rachul, Christen; Snyder, Jeremy; Toews, Maeghan; Zoeller, Sonja

    2014-09-09

    The growing international market for unproven stem cell-based interventions advertised on a direct-to-consumer basis over the internet ("stem cell tourism") is a source of concern because of the risks it presents to patients as well as their supporters, domestic health care systems, and the stem cell research field. Emerging responses such as public and health provider-focused education and national regulatory efforts are encouraging, but the market continues to grow. Physicians play a number of roles in the stem cell tourism market and, in many jurisdictions, are members of a regulated profession. In this article, we consider the use of professional regulation to address physician involvement in stem cell tourism. Although it is not without its limitations, professional regulation is a potentially valuable tool that can be employed in response to problematic types of physician involvement in the stem cell tourism market. Copyright © 2014 The Authors. Published by Elsevier Inc. All rights reserved.

  10. Motivational interviewing: a valuable tool for the psychiatric advanced practice nurse.

    Science.gov (United States)

    Karzenowski, Abby; Puskar, Kathy

    2011-01-01

    Motivational Interviewing (MI) is well known and respected by many health care professionals. Developed by Miller and Rollnick (2002) , it is a way to promote behavior change from within and resolve ambivalence. MI is individualized and is most commonly used in the psychiatric setting; it is a valuable tool for the Psychiatric Advanced Nurse Practice Nurse. There are many resources that talk about what MI is and the principles used to apply it. However, there is little information about how to incorporate MI into a clinical case. This article provides a summary of articles related to MI and discusses two case studies using MI and why advanced practice nurses should use MI with their patients.

  11. 3D-Printed specimens as a valuable tool in anatomy education: A pilot study.

    Science.gov (United States)

    Garas, Monique; Vaccarezza, Mauro; Newland, George; McVay-Doornbusch, Kylie; Hasani, Jamila

    2018-06-06

    Three-dimensional (3D) printing is a modern technique of creating 3D-printed models that allows reproduction of human structures from MRI and CT scans via fusion of multiple layers of resin materials. To assess feasibility of this innovative resource as anatomy educational tool, we conducted a preliminary study on Curtin University undergraduate students to investigate the use of 3D models for anatomy learning as a main goal, to assess the effectiveness of different specimen types during the sessions and personally preferred anatomy learning tools among students as secondary aim. The study consisted of a pre-test, exposure to test (anatomical test) and post-test survey. During pre-test, all participants (both without prior experience and experienced groups) were given a brief introduction on laboratory safety and study procedure thus participants were exposed to 3D, wet and plastinated specimens of the heart, shoulder and thigh to identify the pinned structures (anatomical test). Then, participants were provided a post-test survey containing five questions. In total, 23 participants completed the anatomical test and post-test survey. A larger number of participants (85%) achieved right answers for 3D models compared to wet and plastinated materials, 74% of population selected 3D models as the most usable tool for identification of pinned structures and 45% chose 3D models as their preferred method of anatomy learning. This preliminary small-size study affirms the feasibility of 3D-printed models as a valuable asset in anatomy learning and shows their capability to be used adjacent to cadaveric materials and other widely used tools in anatomy education. Copyright © 2018 Elsevier GmbH. All rights reserved.

  12. Professional Digital Compositing Essential Tools and Techniques

    CERN Document Server

    Lanier, Lee

    2009-01-01

    Learn professional secrets of digital compositing with this detailed guide. After filming is done, digital compositors move in to manipulate color, retouch, and perform other behind-the-scenes tricks that are necessary to improve or finalize movies, games, and commercials. Now you can learn their secrets with this one-of-a-kind guide to digital compositing. Professional animator and author Lee Lanier not only draws upon his own experience, he has also combed some of Hollywood's most active post-production houses in search of the best solutions. Learn valuable techniques, tricks, and more.: Cov

  13. Digital Risk Inventory and Evaluation (RIE) : a Dutch approach offering valuable support for small business owners

    NARCIS (Netherlands)

    Meeuwsen, J.M.

    2008-01-01

    The Dutch Working Conditions Act requires employers to perform a Risk Inventory and Evaluation (RIE). Until recently, small business owners (SMEs) in particular were unhappy about this rather time-consuming obligation. However, the introduction of digital RIE instruments disseminated through the web

  14. Tool Kit Helps Digitize Tide Gauge Records

    Science.gov (United States)

    Ullmann, Albin; Pons, Frédéric; Moron, Vincent

    2005-09-01

    The Numérisation des Niveaux d'Eau (NUNIEAU) is an integrated and automated MATLAB computer program tool kit for digitizing, transforming, and validating paper records of sea level variations, called marigrams (Figure 1a), that can cut in half the time required to digitize paper records. This tool kit developed in 2004 by F. Pons is currently obtainable by request from the developer, but will be available online on the IMPLIT (Impact des événements extremes sur les hydro-systèmes du litoral méditerranéen français) Web site in early 2006.

  15. Navigating Towards Digital Tectonic Tools

    DEFF Research Database (Denmark)

    Schmidt, Anne Marie Due; Kirkegaard, Poul Henning

    2006-01-01

    The computer holds a great potential to break down the barriers between architecture and the technical aspects relating to architecture, thus supporting innovative architecture with an inner correspondence between form and technique. While the differing values in architecture and technique can seem...... a tectonic tool should encompass. Secondly the ability and validity of the model are shown by applying it to a case study of Jørn Utzon’s work on Minor Hall in Sydney Opera House - for the sake of exemplification the technical field focused on in this paper is room acoustics. Thirdly the relationship between...

  16. Value Innovation in Learner-Centered Design. How to Develop Valuable Learning Tools

    Science.gov (United States)

    Breuer, Henning; Schwarz, Heinrich; Feller, Kristina; Matsumoto, Mitsuji

    2014-01-01

    This paper shows how to address technological, cultural and social transformations with empirically grounded innovation. Areas in transition such as higher education and learning techniques today bring about new needs and opportunities for innovative tools and services. But how do we find these tools? The paper argues for using a strategy of…

  17. Simple educational tool for digital speckle shearography

    International Nuclear Information System (INIS)

    Schirripa Spagnolo, Giuseppe; Martocchia, Andrea; Papalillo, Donato; Cozzella, Lorenzo

    2012-01-01

    In this study, an educational tool has been prepared for obtaining short-term and more economic training on digital speckle shearography (DSS). Shearography non-destructive testing (NDT) has gained wide acceptance over the last decade, providing a number of important and exciting inspection solutions in aerospace, electronics and medical device manufacturing. For exploring these motivations, it is important to develop didactic tools to understand the potential of digital shearography through training and didactic courses in the field of NDT. In this paper we describe a simple tool for making one familiar with the potential of DSS in the area of education and training. The system is realized with a simple and economic optical setup and a virtual instrument based on the LabVIEW™ and DAQ. (paper)

  18. Value Innovation in Learner-Centered Design. How to Develop Valuable Learning Tools.

    Directory of Open Access Journals (Sweden)

    Henning Breuer

    2014-02-01

    Full Text Available This paper shows how to address technological, cultural and social transformations with empirically grounded innovation. Areas in transition such as higher education and learning techniques today bring about new needs and opportunities for innovative tools and services. But how do we find these tools? The paper argues for using a strategy of (user value innovation that creatively combines ethnographic methods with strategic industry analysis. By focusing on unmet and emerging needs ethnographic research identifies learner values, needs and challenges but does not determine solutions. Blue-ocean strategy tools can identify new opportunities that alter existing offerings but give weak guidance on what will be most relevant to users. The triangulation of both is illustrated through an innovation project in higher education.

  19. Are consumer surveys valuable as a service improvement tool in health services? A critical appraisal.

    Science.gov (United States)

    Patwardhan, Anjali; Patwardhan, Prakash

    2009-01-01

    In the recent climate of consumerism and consumer focused care, health and social care needs to be more responsive than ever before. Consumer needs and preferences can be elicited with accepted validity and reliability only by strict methodological control, customerisation of the questionnaire and skilled interpretation. To construct, conduct, interpret and implement improved service provision, requires a trained work force and infrastructure. This article aims to appraise various aspects of consumer surveys and to assess their value as effective service improvement tools. The customer is the sole reason organisations exist. Consumer surveys are used worldwide as service and quality of care improvement tools by all types of service providers including health service providers. The article critically appraises the value of consumer surveys as service improvement tools in health services tool and its future applications. No one type of survey is the best or ideal. The key is the selection of the correct survey methodology, unique and customised for the particular type/aspect of care being evaluated. The method used should reflect the importance of the information required. Methodological rigor is essential for the effectiveness of consumer surveys as service improvement tools. Unfortunately so far there is no universal consensus on superiority of one particular methodology over another or any benefit of one specific methodology in a given situation. More training and some dedicated resource allocation is required to develop consumer surveys. More research is needed to develop specific survey methodology and evaluation techniques for improved validity and reliability of the surveys as service improvement tools. Measurement of consumer preferences/priorities, evaluation of services and key performance scores, is not easy. Consumer surveys seem impressive tools as they provide the customer a voice for change or modification. However, from a scientific point

  20. Spectroscopy applied to feed additives of the European Union Reference Laboratory: a valuable tool for traceability.

    Science.gov (United States)

    Omar, Jone; Slowikowski, Boleslaw; Boix, Ana; von Holst, Christoph

    2017-08-01

    Feed additives need to be authorised to be placed on the market according to Regulation (EU) No. 1831/2003. Next to laying down the procedural requirements, the regulation creates the European Union Reference Laboratory for Feed Additives (EURL-FA) and requires that applicants send samples to the EURL-FA. Once authorised, the characteristics of the marketed feed additives should correspond to those deposited in the sample bank of the EURL-FA. For this purpose, the submitted samples were subjected to near-infrared (NIR) and Raman spectroscopy for spectral characterisation. These techniques have the valuable potential of characterising the feed additives in a non-destructive manner without any complicated sample preparation. This paper describes the capability of spectroscopy for a rapid characterisation of products to establish whether specific authorisation criteria are met. This study is based on the analysis of feed additive samples from different categories and functional groups, namely products containing (1) selenium, (2) zinc and manganese, (3) vitamins and (4) essential oils such as oregano and thyme oil. The use of chemometrics turned out to be crucial, especially in cases where the differentiation of spectra by visual inspection was very difficult.

  1. Hemodynamic exercise testing. A valuable tool in the selection of cardiac transplantation candidates.

    Science.gov (United States)

    Chomsky, D B; Lang, C C; Rayos, G H; Shyr, Y; Yeoh, T K; Pierson, R N; Davis, S F; Wilson, J R

    1996-12-15

    Peak exercise oxygen consumption (Vo2), a noninvasive index of peak exercise cardiac output (CO), is widely used to select candidates for heart transplantation. However, peak exercise Vo2 can be influenced by noncardiac factors such as deconditioning, motivation, or body composition and may yield misleading prognostic information. Direct measurement of the CO response to exercise may avoid this problem and more accurately predict prognosis. Hemodynamic and ventilatory responses to maximal treadmill exercise were measured in 185 ambulatory patients with chronic heart failure who had been referred for cardiac transplantation (mean left ventricular ejection fraction, 22 +/- 7%; mean peak Vo2, 12.9 +/- 3.0 mL. min-1.kg-1). CO response to exercise was normal in 83 patients and reduced in 102. By univariate analysis, patients with normal CO responses had a better 1-year survival rate (95%) than did those with reduced CO responses (72%) (P 14 mL.min-1.kg-1 (88%) was not different from that of patients with peak Vo2 of 10 mL.min-1.kg-1 (89%) (P < .0001). By Cox regression analysis, exercise CO response was the strongest independent predictor of survival (risk ratio, 4.3), with peak Vo2 dichotomized at 10 mL. min-1.kg-1 (risk ratio, 3.3) as the only other independent predictor. Patients with reduced CO responses and peak Vo2 of < or = 10 mL.min-1.kg-1 had an extremely poor 1-year survival rate (38%). Both CO response to exercise and peak exercise Vo2 provide valuable independent prognostic information in ambulatory patients with heart failure. These variables should be used in combination to select potential heart transplantation candidates.

  2. Are patient surveys valuable as a service-improvement tool in health services? An overview

    Directory of Open Access Journals (Sweden)

    Patwardhan A

    2012-05-01

    Full Text Available Anjali Patwardhan,1 Charles H Spencer21Nationwide Children’s Hospital Columbus, 2Ohio State University, Columbus, OH, USAAbstract: Improving the quality of care in international health services was made a high priority in 1977. The World Health Assembly passed a resolution to greatly improve “Health for all” by the year 2000. Since 1977, the use of patient surveys for quality improvement has become a common practice in the health-care industry. The use of surveys reflects the concept that patient satisfaction is closely linked with that of organizational performance, which is in turn closely linked with organizational culture. This article is a review of the role of patient surveys as a quality-improvement tool in health care. The article explores the characteristics, types, merits, and pitfalls of various patient surveys, as well as the impact of their wide-ranging application in dissimilar scenarios to identify gaps in service provision. It is demonstrated that the conducting of patient surveys and using the results to improve the quality of care are two different processes. The value of patient surveys depends on the interplay between these two processes and several other factors that can influence the final outcome. The article also discusses the business aspect of the patient surveys in detail. Finally, the authors make future recommendations on how the patient survey tool can be best used to improve the quality of care in the health-care sector.Keywords: patient surveys, quality improvement, service gaps 

  3. Umbilical artery doppler velocimetry: a valuable tool for antenatal fetal surveillance

    International Nuclear Information System (INIS)

    Khawar, N.; Umber, A.

    2013-01-01

    To determine umbilical artery Doppler velocity parameter systolic: diastolic ratio (S/D ratio) relation with fetal well being and outcome. Setting: Department of Obstetrics and Gynecology, Lady Willingdon Hospital, Lahore Duration of study: Six months from 27-02-2008 to 26-08-2008. Subjects and methods: Sixty patients fulfilling the inclusion criteria were included in this study. They were subdivided into two groups. Group 'A' included 30 normal pregnant women with no medical or obstetrical risk factors and group 'B' included 30 pregnant women having risk factors like, hypertension, diabetes, Rhesus incompatibility, discordant twins, intrauterine growth restriction and non immunehydropsfetalis. Results: In comparison of S/D ratio with risk factors it was observed that S/D ratio 3 was present in 19 patients (31.6%) in pregnancy with hypertension/preeclampsia, 3 patients (5%) with diabetes mellitus, 11 patients (18.3%) with intrauterine growth restriction, 15 patients (25.0%) with oligohydramnios and only 1 patient (1.6%) with twin pregnancy. It was observed that women with S/D ratio 3 S/D ratio delivered 10 neonates (16.6%) with <4 Apgar score at 1 minute, 23 (38.3%) with <6 score at 5 minutes and 23 neonates (38.3%) needed resuscitation, 21 (35.0%) were admitted to neonatal unit for asphyxia. Conclusion: Umbilical artery Doppler studies is an integral tool while evaluating health of high risk pregnancies. However, it is not appropriate as a screening tool for low risk pregnancies. (author)

  4. Substrate topography: A valuable in vitro tool, but a clinical red herring for in vivo tenogenesis.

    Science.gov (United States)

    English, Andrew; Azeem, Ayesha; Spanoudes, Kyriakos; Jones, Eleanor; Tripathi, Bhawana; Basu, Nandita; McNamara, Karrina; Tofail, Syed A M; Rooney, Niall; Riley, Graham; O'Riordan, Alan; Cross, Graham; Hutmacher, Dietmar; Biggs, Manus; Pandit, Abhay; Zeugolis, Dimitrios I

    2015-11-01

    Controlling the cell-substrate interactions at the bio-interface is becoming an inherent element in the design of implantable devices. Modulation of cellular adhesion in vitro, through topographical cues, is a well-documented process that offers control over subsequent cellular functions. However, it is still unclear whether surface topography can be translated into a clinically functional response in vivo at the tissue/device interface. Herein, we demonstrated that anisotropic substrates with a groove depth of ∼317nm and ∼1988nm promoted human tenocyte alignment parallel to the underlying topography in vitro. However, the rigid poly(lactic-co-glycolic acid) substrates used in this study upregulated the expression of chondrogenic and osteogenic genes, indicating possible tenocyte trans-differentiation. Of significant importance is that none of the topographies assessed (∼37nm, ∼317nm and ∼1988nm groove depth) induced extracellular matrix orientation parallel to the substrate orientation in a rat patellar tendon model. These data indicate that two-dimensional imprinting technologies are useful tools for in vitro cell phenotype maintenance, rather than for organised neotissue formation in vivo, should multifactorial approaches that consider both surface topography and substrate rigidity be established. Herein, we ventured to assess the influence of parallel groves, ranging from nano- to micro-level, on tenocytes response in vitro and on host response using a tendon and a subcutaneous model. In vitro analysis indicates that anisotropically ordered micro-scale grooves, as opposed to nano-scale grooves, maintain physiological cell morphology. The rather rigid PLGA substrates appeared to induce trans-differentiation towards chondrogenic and/or steogenic lineage, as evidence by TILDA gene analysis. In vivo data in both tendon and subcutaneous models indicate that none of the substrates induced bidirectional host cell and tissue growth. Collective, these

  5. Clinical audit, a valuable tool to improve quality of care: General methodology and applications in nephrology

    Science.gov (United States)

    Esposito, Pasquale; Dal Canton, Antonio

    2014-01-01

    Evaluation and improvement of quality of care provided to the patients are of crucial importance in the daily clinical practice and in the health policy planning and financing. Different tools have been developed, including incident analysis, health technology assessment and clinical audit. The clinical audit consist of measuring a clinical outcome or a process, against well-defined standards set on the principles of evidence-based medicine in order to identify the changes needed to improve the quality of care. In particular, patients suffering from chronic renal diseases, present many problems that have been set as topics for clinical audit projects, such as hypertension, anaemia and mineral metabolism management. Although the results of these studies have been encouraging, demonstrating the effectiveness of audit, overall the present evidence is not clearly in favour of clinical audit. These findings call attention to the need to further studies to validate this methodology in different operating scenarios. This review examines the principle of clinical audit, focusing on experiences performed in nephrology settings. PMID:25374819

  6. PRIDE and "Database on Demand" as valuable tools for computational proteomics.

    Science.gov (United States)

    Vizcaíno, Juan Antonio; Reisinger, Florian; Côté, Richard; Martens, Lennart

    2011-01-01

    The Proteomics Identifications Database (PRIDE, http://www.ebi.ac.uk/pride ) provides users with the ability to explore and compare mass spectrometry-based proteomics experiments that reveal details of the protein expression found in a broad range of taxonomic groups, tissues, and disease states. A PRIDE experiment typically includes identifications of proteins, peptides, and protein modifications. Additionally, many of the submitted experiments also include the mass spectra that provide the evidence for these identifications. Finally, one of the strongest advantages of PRIDE in comparison with other proteomics repositories is the amount of metadata it contains, a key point to put the above-mentioned data in biological and/or technical context. Several informatics tools have been developed in support of the PRIDE database. The most recent one is called "Database on Demand" (DoD), which allows custom sequence databases to be built in order to optimize the results from search engines. We describe the use of DoD in this chapter. Additionally, in order to show the potential of PRIDE as a source for data mining, we also explore complex queries using federated BioMart queries to integrate PRIDE data with other resources, such as Ensembl, Reactome, or UniProt.

  7. Per-operative vibration analysis: a valuable tool for defining correct stem insertion: preliminary report.

    Science.gov (United States)

    Mulier, Michiel; Pastrav, Cesar; Van der Perre, Georges

    2008-01-01

    Defining the stem insertion end point during total hip replacement still relies on the surgeon's feeling. When a custom-made stem prosthesis with an optimal fit into the femoral canal is used, the risk of per-operative fractures is even greater than with standard prostheses. Vibration analysis is used in other clinical settings and has been tested as a means to detect optimal stem insertion in the laboratory. The first per-operative use of vibration analysis during non-cemented custom-made stem insertion in 30 patients is reported here. Thirty patients eligible for total hip replacement with uncemented stem prosthesis were included. The neck of the stem was connected with a shaker that emitted white noise as excitation signal and an impedance head that measured the frequency response. The response signal was sent to a computer that analyzed the frequency response function after each insertion phase. A technician present in the operating theatre but outside the laminated airflow provided feed-back to the surgeon. The correlation index between the frequency response function measured during the last two insertion hammering sessions was >0.99 in 86.7% of the cases. In four cases the surgeon stopped the insertion procedure because of a perceived risk of fracture. Two special cases illustrating the potential benefit of per-operative vibration analysis are described. The results of intra-operative vibration analysis indicate that this technique may be a useful tool assisting the orthopaedic surgeon in defining the insertion endpoint of the stem. The development of a more user-friendly device is therefore warranted.

  8. Data-Mining – A Valuable Managerial Tool for Improving Power Plants Efficiency

    Directory of Open Access Journals (Sweden)

    Danubianu Mirela

    2014-05-01

    Full Text Available Energy and environment are top priorities for the EU’s Europe 2020 Strategy. Both fields imply complex approaches and consistent investment. The paper presents an alternative to large investments to improve the efficiencies of existing (outdated power installations: namely the use of data-mining techniques for analysing existing operational data. Data-mining is based upon exhaustive analysis of operational records, inferring high-value information by simply processing records with advanced mathematical / statistical tools. Results can be: assessment of the consistency of measurements, identification of new hardware needed for improving the quality of data, deducing the most efficient level for operation (internal benchmarking, correlation of consumptions with power/ heat production, of technical parameters with environmental impact, scheduling the optimal maintenance time, fuel stock optimization, simulating scenarios for equipment operation, anticipating periods of maximal stress of equipment, identification of medium and long term trends, planning and decision support for new investment, etc. The paper presents a data mining process carried out at the TERMICA - Suceava power plant. The analysis calls for a multidisciplinary approach, a complex team (experts in power&heat production, mechanics, environmental protection, economists, and last but not least IT experts and can be carried out with lower expenses than an investment in new equipment. Involvement of top management of the company is essential, being the driving force and motivation source for the data-mining team. The approach presented is self learning as once established, the data-mining analytical, modelling and simulation procedures and associated parameter databases can adjust themselves by absorbing and processing new relevant information and can be used on a long term basis for monitoring the performance of the installation, certifying the soundness of managerial measures taken

  9. The Graphics Tablet - A Valuable Tool for the Digital STEM Teacher

    Science.gov (United States)

    Stephens, Jeff

    2018-04-01

    I am inspired to write this article after coming across some publications in The Physics Teacher that all hit on topics of personal interest and experience. Similarly to Christensen my goal in writing this is to encourage other physics educators to take advantage of modern technology in delivering content to students and to feel comfortable doing so. There are numerous ways in which to create screencasts and lecture videos, some of which have been addressed in other articles. I invite those interested in learning how to create these videos to contact their educational technology staff or perform some internet searches on the topic. I will focus this article on the technology that enhanced the content I was delivering to my students. I will share a bit of my journey towards creating video materials and introduce a vital piece of technology, the graphics tablet, which changed the way I communicate with my students.

  10. The Graphics Tablet--A Valuable Tool for the Digital STEM Teacher

    Science.gov (United States)

    Stephens, Jeff

    2018-01-01

    I am inspired to write this article after coming across some publications in "The Physics Teacher" that all hit on topics of personal interest and experience. Similarly to Christensen my goal in writing this is to encourage other physics educators to take advantage of modern technology in delivering content to students and to feel…

  11. Tools for Teaching the "Digital Natives"

    DEFF Research Database (Denmark)

    Pals Svendsen, Lisbet; Mondahl, Margrethe

    2011-01-01

    University educators and researchers face new generations of “digitally native” students, who approach academic disciplines in novel ways, thus creating a changed university-learning environment that demands new ways of building knowledge in a bottom-up process. A case in point is the area...... that support social, collaborative processes that are fun, motivating and better support learning. The article therefore discusses collaborative and individualized learning processes and how social software platforms may better harness collective and personal knowledge in order to enhance learning outcome...... of corporate communication where we need new methods of approaching adult cultural/communicative learning since these integrated competences are much asked for in the business community. One way of approaching university pedagogy within these fields is asking whether social software could provide better tools...

  12. Remediating a Design Tool: Implications of Digitizing Sticky Notes

    DEFF Research Database (Denmark)

    Jensen, Mads Møller; Rädle, Roman; Klokmose, Clemens Nylandsted

    2018-01-01

    digital sticky notes setup. The paper contributes with a nuanced understanding of what happens when remediating a physical design tool into digital space, by emphasizing focus shifts and breakdowns caused by the technology, but also benefits and promises inherent in the digital media. Despite users...... their use and understanding, yielding new concerns regarding cross-device transfer and collaboration....

  13. Digital Tools: Enhancing Painting Skills among Malaysian Secondary School Students

    Science.gov (United States)

    Samah, Azimah A.; Putih, Abu Talib; Hussin, Zaharah

    2016-01-01

    Digital tools refer to software applications in the production of artworks particularly in painting. Digital art work is materialized by using computers, software and a combination of computer peripherals such as tablet support. With the aid of electronic equipment, digital artists manipulate pixels or coloring with light to compose the work and…

  14. Digital Sculpting with Mudbox Essential Tools and Techniques for Artists

    CERN Document Server

    de la Flor, Mike

    2010-01-01

    Digital sculpting is the use of tools to push, pull, smooth, grab, pinch or otherwise manipulate a digital object as if it were made of a real-life substance such as clay. Mudbox is the premier sculpting solution for digital artists, allowing them to naturally and easily sculpt detailed, organic characters and models in a way that feels like traditional sculpting.This book guides CG professionals through the process of creating amazing digital sculptures using the Mudbox arsenal of ground-breaking digital sculpting and 3D painting tools, and porting the models into their Maya or Max work.Artis

  15. Digital Portfolios: Powerful Marketing Tool for Communications Students

    Science.gov (United States)

    Nikirk, Martin

    2008-01-01

    A digital portfolio is a powerful marketing tool for young people searching for employment in the communication or interactive media fields. With a digital portfolio, students can demonstrate their skills at working with software tools, demonstrate appropriate use of materials, explain technical procedures, show an understanding of processes and…

  16. Tools for Teaching the Digital Natives

    Directory of Open Access Journals (Sweden)

    Lisbet Pals Svendsen

    2011-12-01

    Full Text Available University educators and researchers face new generations of “digitally native” students, who approach academic disciplines in novel ways, thus creating a changed university-learning environment that demands new ways of building knowledge in a bottom-up process. A case in point is the area of corporate communication where we need new methods of approaching adult cultural/communicative learning since these integrated competences are much asked for in the business community. One way of approaching university pedagogy within these fields is asking whether social software could provide better tools that support social, collaborative processes that are fun, motivating and better support learning. The article therefore discusses collaborative and individualized learning processes and how social software platforms may better harness collective and personal knowledge in order to enhance learning outcome. The theoretical foundations of the article have been established at the crossroads between general learning theory, cultural/communicative learning theory and social media applications that facilitate collaborative, synchronous and interactive learning platforms. Data evaluation and comparisons in regard to learning outcomes are based on empirical data from two cases applying different learning platforms used in CBS programme courses involving culture and communication learning elements.

  17. Tools for Teaching the Digital Natives

    Directory of Open Access Journals (Sweden)

    Lisbet Pals Svendsen

    2011-12-01

    Full Text Available University educators and researchers face new generations of “digitally native” students, who approach academic disciplines in novel ways, thus creating a changed university-learning environment that demands new ways of building knowledge in a bottom-up process. A case in point is the area of corporate communication where we need new methods of approaching adult cultural/communicative learning since these integrated competences are much asked for in the business community. One way of approaching university pedagogy within these fields is asking whether social software could provide better tools that support social, collaborative processes that are fun, motivating and better support learning. The article therefore discusses collaborative and individualized learning processes and how social software platforms may better harness collective and personal knowledge in order to enhance learning outcome. The theoretical foundations of the article have been established at the crossroads between general learning theory, cultural/communicative learning theory and social media applications that facilitate collaborative, synchronous and interactive learning platforms. Data evaluation and comparisons in regard to learning outcomes are based on empirical data from two cases applying different learning platforms used in CBS programme courses involving culture and communication learning elements.

  18. Agrobacterium rhizogenes-mediated transformation of Superroot-derived Lotus corniculatus plants: a valuable tool for functional genomics

    Directory of Open Access Journals (Sweden)

    Liu Wei

    2009-06-01

    reach 92% based on GUS detection. The combination of the highly efficient transformation and the regeneration system of Superroot provides a valuable tool for functional genomics studies in L. corniculatus.

  19. Combined measurement of plasma cystatin C and low-density lipoprotein cholesterol: A valuable tool for evaluating progressive supranuclear palsy.

    Science.gov (United States)

    Weng, Ruihui; Wei, Xiaobo; Yu, Bin; Zhu, Shuzhen; Yang, Xiaohua; Xie, Fen; Zhang, Mahui; Jiang, Ying; Feng, Zhong-Ping; Sun, Hong-Shuo; Xia, Ying; Jin, Kunlin; Chan, Piu; Wang, Qing; Gao, Xiaoya

    2018-07-01

    Progressive supranuclear palsy (PSP) was previously thought as a cause of atypical Parkinsonism. Although Cystatin C (Cys C) and low-density cholesterol lipoprotein-C (LDL-C) are known to play critical roles in Parkinsonism, it is unknown whether they can be used as markers to distinguish PSP patients from healthy subjects and to determine disease severity. We conducted a cross-sectional study to determine plasma Cys C/HDL/LDL-C levels of 40 patients with PSP and 40 healthy age-matched controls. An extended battery of motor and neuropsychological tests, including the PSP-Rating Scale (PSPRS), the Non-Motor Symptoms Scale (NMSS), Geriatric Depression Scale (GDS) and Mini-Mental State Examination (MMSE), was used to evaluate the disease severity. Receiver operating characteristic (ROC) curves were adopted to assess the prognostic accuracy of Cys C/LDL-C levels in distinguishing PSP from healthy subjects. Patients with PSP exhibited significantly higher plasma levels of Cys C and lower LDL-C. The levels of plasma Cys C were positively and inversely correlated with the PSPRS/NMSS and MMSE scores, respectively. The LDL-C/HDL-C ratio was positively associated with PSPRS/NMSS and GDS scores. The ROC curve for the combination of Cys C and LDL-C yielded a better accuracy for distinguishing PSP from healthy subjects than the separate curves for each parameter. Plasma Cys C and LDL-C may be valuable screening tools for differentiating PSP from healthy subjects; while they could be useful for the PSP intensifies and severity evaluation. A better understanding of Cys C and LDL-C may yield insights into the pathogenesis of PSP. Copyright © 2018 Elsevier Ltd. All rights reserved.

  20. Micro-Enterprises’ Digital Marketing Tools for Building Customer Relationships

    Directory of Open Access Journals (Sweden)

    Tuulia Nikunen

    2017-06-01

    Full Text Available The digital marketing environment is changing rapidly, and, for micro-enterprises, digital marketing is currently a vitally important opportunity. Attracting customers, engaging customers’ interest and participation, retaining customers, learning customers’ preferences and relating to customers are key strategies in building strong customer relationships. However, many enterprises ignore longer-term aspects of managing customer relationships. The study sought to contribute to a more in-depth understanding of micro-enterprises’ current strategies in terms of new digital marketing tools that foster stronger customer relationships. Based on interviews of two digital marketing service providers, this paper describes how their micro-enterprise clients use digital marketing tools through the five elements of building customer relationships. The findings highlight the importance of a practical understanding of digital marketing tools, as the digital marketing environment changes rapidly. The human capital and digital tool knowledge of micro-enterprises’ owner-managers have a great impact on these firms’ digital marketing and, ultimately, their success.

  1. Digital Media Archaeology : Digging into the Digital Tool AVResearcherXL

    NARCIS (Netherlands)

    van Gorp, J.; de Leeuw, J.S.; van Wees, J.; Huurnink, B.

    Recently, scholarly works started to turn their interest to the epistemological and methodological challenges that research with new digital tools and technologies do pose. In this article, we would like to contribute to this methodological discussion and to shed light on the role of digital tools

  2. Comparing the performance of three digital forensic tools

    Directory of Open Access Journals (Sweden)

    Brian Cusack

    Full Text Available Software used for digital forensic investigations requires to be verified against reliability and validity criteria. In this paper, three well known tools are tested against the mandatory features of digital forensic tools published by the National Institute of Standards (NIST. It was found that a variation in performance existed between the tools, with all having measureable areas of non performance. The findings have an impact on the professional use of the tools and illustrate the need for benchmarking and testing of the tools before use.

  3. Digital Repositories of Learning Material as a Support Tool for Knowledge Management and Capacity Building

    International Nuclear Information System (INIS)

    Marmonti, E.

    2016-01-01

    Full text: For some years, digital repositories are emerging as a de facto standard service for storing, preserving and disseminate knowledge: academic, scientific information and, more recently, primary research data of institutions. Some of the digital repositories host also collections of material classified as learning objects; some others are created to manage only learning objects (LO), as the Learning Objects Digital Repositories, or were built to function as learning objects aggregators. The term “learning object” itself is involving different types of structures, organization and complexity. This paper will show how digital repositories, metadata standards and semantic web technologies can be valuable tools for managing educational content, which can contribute to build a learning and knowledge driven organization. (author

  4. Valuable Connections

    DEFF Research Database (Denmark)

    Kjærsgaard, Mette Gislev; Smith, Rachel Charlotte

    2014-01-01

    and blurred boundaries between physical, digital and hybrid contexts, as well as design, production and use, we might need to rethink the role of ethnography within design and business development. Perhaps the aim is less about ”getting closer” to user needs and real-life contexts, through familiarization......, mediation, advocacy and facilitation, as in conventional approaches to ethnography in user centred design, and more about creating a critical theoretically informed distance from which to perceive and reflect upon complex interconnections between people, technology, business and design, as well as our roles...

  5. Using Digital Mapping Tool in Ill-Structured Problem Solving

    Science.gov (United States)

    Bai, Hua

    2013-01-01

    Scaffolding students' problem solving and helping them to improve problem solving skills are critical in instructional design courses. This study investigated the effects of students' uses of a digital mapping tool on their problem solving performance in a design case study. It was found that the students who used the digital mapping tool…

  6. Dpaper: An Authoring Tool for Extractable Digital Papers

    Directory of Open Access Journals (Sweden)

    Xiaoqiu Le

    2016-03-01

    Full Text Available Purpose: To develop a structured, rich media digital paper authoring tool with an objectbased model that enables interactive, playable, and convertible functions. Design/methodology/approach: We propose Dpaper to organize the content (text, data, rich media, etc. of dissertation papers as XML and HTML5 files by means of digital objects and digital templates. Findings: Dpaper provides a structured-paper editorial platform for the authors of PhDs to organize research materials and to generate various digital paper objects that are playable and reusable. The PhD papers are represented as Web pages and structured XML files, which are marked with semantic tags. Research limitations: The proposed tool only provides access to a limited number of digital objects. For instance, the tool cannot create equations and graphs, and typesetting is not yet flexible compared to MS Word. Practical implications: The Dpaper tool is designed to break through the patterns of unstructured content organization of traditional papers, and makes the paper accessible for not only reading but for exploitation as data, where the document can be extractable and reusable. As a result, Dpaper can make the digital publishing of dissertation texts more flexible and efficient, and their data more assessable. Originality/value: The Dpaper tool solves the challenge of making a paper structured and object-based in the stage of authoring, and has practical values for semantic publishing.

  7. The Power of Digital Storytelling as a Culturally Relevant Health Promotion Tool.

    Science.gov (United States)

    Briant, Katherine J; Halter, Amy; Marchello, Nathan; Escareño, Monica; Thompson, Beti

    2016-11-01

    Digital storytelling is an emergent method in health promotion. It addresses health inequities by combining technology with the voices of members of vulnerable, often underrepresented populations. The overall goal of this pilot project was to explore if digital storytelling could be a culturally relevant health promotion tool for Hispanics/Latinos to share their experiences with cancer, or other diseases. Promotores participated in a train-the-trainer workshop. Community members worked with trained promotores to create digital stories through community workshops. We conducted one-on-one interviews with digital story creators to elicit perspectives and assess their experience. One overarching theme among storytellers was the power of storytelling. Supporting subthemes that emerged in the interviews were (1) connection and communication, (2) lack of opportunities and barriers to telling stories, and (3) potential for disease prevention awareness and education. This study found digital storytelling to be culturally relevant for Hispanics/Latinos of Mexican origin. For these storytellers it was a uniquely valuable tool for sharing personal stories of overcoming or managing health issues. Participants found the digital story experience to be positive and beneficial. It provided a healing outlet to reflect on a difficult experience and find support within one's own community. © 2016 Society for Public Health Education.

  8. Web Surveys to Digital Movies: Technological Tools of the Trade.

    Science.gov (United States)

    Fetterman, David M.

    2002-01-01

    Highlights some of the technological tools used by educational researchers today, focusing on data collection related tools such as Web surveys, digital photography, voice recognition and transcription, file sharing and virtual office, videoconferencing on the Internet, instantaneous chat and chat rooms, reporting and dissemination, and digital…

  9. Interactive Construction Digital Tools With Real Time Analysis

    DEFF Research Database (Denmark)

    Klitgaard, Jens; Kirkegaard, Poul Henning

    2007-01-01

    . The aim of this research is to look into integrated digital design and analysis tools in order to find out if it is suited for use by architects and designers or only by specialists and technicians - and if not, then to look at what can be done to make them more available to architects and designers...... an architect-engineer or hybrid practitioner works simultaneously with both aesthetic and technical design requirements. In this paper the problem of a vague or not existing link between digital design tools, used by architects and designers, and the analysis tools developed by and for engineers is considered......The recent developments in computational design tools have evolved into a sometimes purely digital process which opens up for new perspectives and problems in the sketching process. One of the interesting possibilities lay within the hybrid practitioner- or architect-engineer approach, where...

  10. Digital Tools to Enhance Clinical Reasoning.

    Science.gov (United States)

    Manesh, Reza; Dhaliwal, Gurpreet

    2018-05-01

    Physicians can improve their diagnostic acumen by adopting a simulation-based approach to analyzing published cases. The tight coupling of clinical problems and their solutions affords physicians the opportunity to efficiently upgrade their illness scripts (structured knowledge of a specific disease) and schemas (structured frameworks for common problems). The more times clinicians practice accessing and applying those knowledge structures through published cases, the greater the odds that they will have an enhanced approach to similar patient-cases in the future. This article highlights digital resources that increase the number of cases a clinician experiences and learns from. Copyright © 2017 Elsevier Inc. All rights reserved.

  11. Digital PCR as a tool to measure HIV persistence.

    Science.gov (United States)

    Rutsaert, Sofie; Bosman, Kobus; Trypsteen, Wim; Nijhuis, Monique; Vandekerckhove, Linos

    2018-01-30

    Although antiretroviral therapy is able to suppress HIV replication in infected patients, the virus persists and rebounds when treatment is stopped. In order to find a cure that can eradicate the latent reservoir, one must be able to quantify the persisting virus. Traditionally, HIV persistence studies have used real-time PCR (qPCR) to measure the viral reservoir represented by HIV DNA and RNA. Most recently, digital PCR is gaining popularity as a novel approach to nucleic acid quantification as it allows for absolute target quantification. Various commercial digital PCR platforms are nowadays available that implement the principle of digital PCR, of which Bio-Rad's QX200 ddPCR is currently the most used platform in HIV research. Quantification of HIV by digital PCR is proving to be a valuable improvement over qPCR as it is argued to have a higher robustness to mismatches between the primers-probe set and heterogeneous HIV, and forfeits the need for a standard curve, both of which are known to complicate reliable quantification. However, currently available digital PCR platforms occasionally struggle with unexplained false-positive partitions, and reliable segregation between positive and negative droplets remains disputed. Future developments and advancements of the digital PCR technology are promising to aid in the accurate quantification and characterization of the persistent HIV reservoir.

  12. Spectroelectrochemistry: A valuable tool for the study of organometallic-alkyne, -vinylidene, -cumulene, -alkynyl and related complexes

    International Nuclear Information System (INIS)

    Low, Paul J.; Bock, Sören

    2013-01-01

    This review presents a highly selective summary of spectroelectrochemical methods used in the study of metal alkyne, acetylide, vinylidene and allenylidene complexes. The review is illustrated predominantly by the selected examples from the authors’ group that formed the basis of a lecture at the recent ISE Annual Meeting. Emphasis is placed on the use of spectroelectrochemical methods to study redox-induced ligand isomerisation reactions, and determination of molecular electronic structure, which complement the conventional tools available to the synthetic chemist for characterisation of molecular compounds. The role of computational studies in supporting the interpretation of spectroscopic data is also briefly discussed

  13. Primary culture of glial cells from mouse sympathetic cervical ganglion: a valuable tool for studying glial cell biology.

    Science.gov (United States)

    de Almeida-Leite, Camila Megale; Arantes, Rosa Maria Esteves

    2010-12-15

    Central nervous system glial cells as astrocytes and microglia have been investigated in vitro and many intracellular pathways have been clarified upon various stimuli. Peripheral glial cells, however, are not as deeply investigated in vitro despite its importance role in inflammatory and neurodegenerative diseases. Based on our previous experience of culturing neuronal cells, our objective was to standardize and morphologically characterize a primary culture of mouse superior cervical ganglion glial cells in order to obtain a useful tool to study peripheral glial cell biology. Superior cervical ganglia from neonatal C57BL6 mice were enzymatically and mechanically dissociated and cells were plated on diluted Matrigel coated wells in a final concentration of 10,000cells/well. Five to 8 days post plating, glial cell cultures were fixed for morphological and immunocytochemical characterization. Glial cells showed a flat and irregular shape, two or three long cytoplasm processes, and round, oval or long shaped nuclei, with regular outline. Cell proliferation and mitosis were detected both qualitative and quantitatively. Glial cells were able to maintain their phenotype in our culture model including immunoreactivity against glial cell marker GFAP. This is the first description of immunocytochemical characterization of mouse sympathetic cervical ganglion glial cells in primary culture. This work discusses the uses and limitations of our model as a tool to study many aspects of peripheral glial cell biology. Copyright © 2010 Elsevier B.V. All rights reserved.

  14. On the Integration of Digital Design and Analysis Tools

    DEFF Research Database (Denmark)

    Klitgaard, Jens; Kirkegaard, Poul Henning

    2006-01-01

    The aim of this research is to look into integrated digital design and analysis tools in order to find out if it is suited for use by architects and designers or only by specialists and technicians - and if not, then to look at what can be done to make them more available to architects and design...

  15. Digital Discernment: An E-Commerce Web Site Evaluation Tool

    Science.gov (United States)

    Sigman, Betsy Page; Boston, Brian J.

    2013-01-01

    Students entering the business workforce today may well share some responsibility for developing, revising, or evaluating their company's Web site. They may lack the experience, however, to critique their employer's Web presence effectively. The purpose of developing Digital Discernment, an e-commerce Web site evaluation tool, was to prepare…

  16. The Use of Digital Tools by Independent Music Teachers

    Science.gov (United States)

    Upitis, Rena; Abrami, Philip C.; Boese, Karen

    2016-01-01

    The present paper explores two aspects of independent music teachers' views and practices: (a) their views on the importance of self-regulation and (b) how they use tools available on mobile devices to enhance their students' learning. A survey involving 1,468 Canadian teachers revealed that most teachers are comfortable using digital technology.…

  17. MIDAS (Migraine Disability Assessment: a valuable tool for work-site identification of migraine in workers in Brazil

    Directory of Open Access Journals (Sweden)

    Yara Dadalti Fragoso

    Full Text Available CONTEXT: MIDAS was developed as a fast and efficient method for identification of migraine in need of medical evaluation and treatment. It was necessary to translate MIDAS, originally written in English, so as to apply it in Brazil and make it usable by individuals from a variety of social-economic-cultural backgrounds. OBJECTIVE: To translate and to apply MIDAS in Brazil. SETTING: Assessment of a sample of workers regularly employed by an oil refinery. SETTING: Refinaria Presidente Bernardes, Cubatão, São Paulo, Brazil. PARTICIPANTS: 404 workers of the company who correctly answered a questionnaire for the identification and evaluation of headache. When the individual considered it to be pertinent to his own needs, there was the option to answer MIDAS as well. METHODS: MIDAS, originally written in English, was translated into Brazilian Portuguese by a neurologist and by a translator specializing in medical texts. The final version of the translation was obtained when, for ten patients to whom it was applied, the text seemed clear and the results were consistent over three sessions. MAIN MEASUREMENTS: Prevalence and types of primary headaches, evaluation of MIDAS as a tool for identification of more severe cases. RESULTS: From the total of 419 questionnaires given to the employees, 404 were returned correctly completed. From these, 160 persons were identified as presenting headaches, 44 of whom considered it worthwhile answering MIDAS. Nine of these individuals who answered MIDAS were identified as severe cases of migraine due to disability caused by the condition. An interview on a later date confirmed these results. Three were cases of chronic daily headache (transformed migraine and six were cases of migraine. CONCLUSIONS: MIDAS translated to Brazilian Portuguese was a useful tool for identifying severe cases of migraine and of transformed migraine in a working environment. The workers did not consider MIDAS to be difficult to answer. Their

  18. λ5-Phosphorus-Containing α-Diazo Compounds: A Valuable Tool for Accessing Phosphorus-Functionalized Molecules.

    Science.gov (United States)

    Marinozzi, Maura; Pertusati, Fabrizio; Serpi, Michaela

    2016-11-23

    The compounds characterized by the presence of a λ 5 -phosphorus functionality at the α-position with respect to the diazo moiety, here referred to as λ 5 -phosphorus-containing α-diazo compounds (PCDCs), represent a vast class of extremely versatile reagents in organic chemistry and are particularly useful in the preparation of phosphonate- and phosphinoxide-functionalized molecules. Indeed, thanks to the high reactivity of the diazo moiety, PCDCs can be induced to undergo a wide variety of chemical transformations. Among them are carbon-hydrogen, as well as heteroatom-hydrogen insertion reactions, cyclopropanation, ylide formation, Wolff rearrangement, and cycloaddition reactions. PCDCs can be easily prepared from readily accessible precursors by a variety of different methods, such as diazotization, Bamford-Stevens-type elimination, and diazo transfer reactions. This evidence along with their relative stability and manageability make them appealing tools in organic synthesis. This Review aims to demonstrate the ongoing utility of PCDCs in the modern preparation of different classes of phosphorus-containing compounds, phosphonates, in particular. Furthermore, to address the lack of precedent collective papers, this Review also summarizes the methods for PCDCs preparation.

  19. Transformed hairy roots of Discaria trinervis: a valuable tool for studying actinorhizal symbiosis in the context of intercellular infection.

    Science.gov (United States)

    Imanishi, Leandro; Vayssières, Alice; Franche, Claudine; Bogusz, Didier; Wall, Luis; Svistoonoff, Sergio

    2011-11-01

    Among infection mechanisms leading to root nodule symbiosis, the intercellular infection pathway is probably the most ancestral but also one of the least characterized. Intercellular infection has been described in Discaria trinervis, an actinorhizal plant belonging to the Rosales order. To decipher the molecular mechanisms underlying intercellular infection with Frankia bacteria, we set up an efficient genetic transformation protocol for D. trinervis based on Agrobacterium rhizogenes. We showed that composite plants with transgenic roots expressing green fluorescent protein can be specifically and efficiently nodulated by Frankia strain BCU110501. Nitrogen fixation rates and feedback inhibition of nodule formation by nitrogen were similar in control and composite plants. In order to challenge the transformation system, the MtEnod11 promoter, a gene from Medicago truncatula widely used as a marker for early infection-related symbiotic events in model legumes, was introduced in D. trinervis. MtEnod11::GUS expression was related to infection zones in root cortex and in the parenchyma of the developing nodule. The ability to study intercellular infection with molecular tools opens new avenues for understanding the evolution of the infection process in nitrogen-fixing root nodule symbioses.

  20. Quantitative PCR is a Valuable Tool to Monitor the Performance of DNA-Encoded Chemical Library Selections.

    Science.gov (United States)

    Li, Yizhou; Zimmermann, Gunther; Scheuermann, Jörg; Neri, Dario

    2017-05-04

    Phage-display libraries and DNA-encoded chemical libraries (DECLs) represent useful tools for the isolation of specific binding molecules from large combinatorial sets of compounds. With both methods, specific binders are recovered at the end of affinity capture procedures by using target proteins of interest immobilized on a solid support. However, although the efficiency of phage-display selections is routinely quantified by counting the phage titer before and after the affinity capture step, no similar quantification procedures have been reported for the characterization of DECL selections. In this article, we describe the potential and limitations of quantitative PCR (qPCR) methods for the evaluation of selection efficiency by using a combinatorial chemical library with more than 35 million compounds. In the experimental conditions chosen for the selections, a quantification of DNA input/recovery over five orders of magnitude could be performed, revealing a successful enrichment of abundant binders, which could be confirmed by DNA sequencing. qPCR provided rapid information about the performance of selections, thus facilitating the optimization of experimental conditions. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  1. The Rg1 allele as a valuable tool for genetic transformation of the tomato 'Micro-Tom' model system

    Directory of Open Access Journals (Sweden)

    Quecini Vera

    2010-10-01

    Full Text Available Abstract Background The cultivar Micro-Tom (MT is regarded as a model system for tomato genetics due to its short life cycle and miniature size. However, efforts to improve tomato genetic transformation have led to protocols dependent on the costly hormone zeatin, combined with an excessive number of steps. Results Here we report the development of a MT near-isogenic genotype harboring the allele Rg1 (MT-Rg1, which greatly improves tomato in vitro regeneration. Regeneration was further improved in MT by including a two-day incubation of cotyledonary explants onto medium containing 0.4 μM 1-naphthaleneacetic acid (NAA before cytokinin treatment. Both strategies allowed the use of 5 μM 6-benzylaminopurine (BAP, a cytokinin 100 times less expensive than zeatin. The use of MT-Rg1 and NAA pre-incubation, followed by BAP regeneration, resulted in high transformation frequencies (near 40%, in a shorter protocol with fewer steps, spanning approximately 40 days from Agrobacterium infection to transgenic plant acclimatization. Conclusions The genetic resource and the protocol presented here represent invaluable tools for routine gene expression manipulation and high throughput functional genomics by insertional mutagenesis in tomato.

  2. Estimation of the solubility parameters of model plant surfaces and agrochemicals: a valuable tool for understanding plant surface interactions.

    Science.gov (United States)

    Khayet, Mohamed; Fernández, Victoria

    2012-11-14

    Most aerial plant parts are covered with a hydrophobic lipid-rich cuticle, which is the interface between the plant organs and the surrounding environment. Plant surfaces may have a high degree of hydrophobicity because of the combined effects of surface chemistry and roughness. The physical and chemical complexity of the plant cuticle limits the development of models that explain its internal structure and interactions with surface-applied agrochemicals. In this article we introduce a thermodynamic method for estimating the solubilities of model plant surface constituents and relating them to the effects of agrochemicals. Following the van Krevelen and Hoftyzer method, we calculated the solubility parameters of three model plant species and eight compounds that differ in hydrophobicity and polarity. In addition, intact tissues were examined by scanning electron microscopy and the surface free energy, polarity, solubility parameter and work of adhesion of each were calculated from contact angle measurements of three liquids with different polarities. By comparing the affinities between plant surface constituents and agrochemicals derived from (a) theoretical calculations and (b) contact angle measurements we were able to distinguish the physical effect of surface roughness from the effect of the chemical nature of the epicuticular waxes. A solubility parameter model for plant surfaces is proposed on the basis of an increasing gradient from the cuticular surface towards the underlying cell wall. The procedure enabled us to predict the interactions among agrochemicals, plant surfaces, and cuticular and cell wall components, and promises to be a useful tool for improving our understanding of biological surface interactions.

  3. Advanced software tools for digital loose part monitoring systems

    International Nuclear Information System (INIS)

    Ding, Y.

    1996-01-01

    The paper describes two software modules as analysis tools for digital loose part monitoring systems. The first module is called acoustic module which utilizes the multi-media features of modern personal computers to replay the digital stored short-time bursts with sufficient length and in good quality. This is possible due to the so-called puzzle technique developed at ISTec. The second module is called classification module which calculates advanced burst parameters and classifies the acoustic events in pre-defined classes with the help of an artificial multi-layer perception neural network trained with the back propagation algorithm. (author). 7 refs, 7 figs

  4. Advanced software tools for digital loose part monitoring systems

    Energy Technology Data Exchange (ETDEWEB)

    Ding, Y [Institute for Safety Technology (ISTec) GmbH, Garching (Germany)

    1997-12-31

    The paper describes two software modules as analysis tools for digital loose part monitoring systems. The first module is called acoustic module which utilizes the multi-media features of modern personal computers to replay the digital stored short-time bursts with sufficient length and in good quality. This is possible due to the so-called puzzle technique developed at ISTec. The second module is called classification module which calculates advanced burst parameters and classifies the acoustic events in pre-defined classes with the help of an artificial multi-layer perception neural network trained with the back propagation algorithm. (author). 7 refs, 7 figs.

  5. Portable hyperspectral device as a valuable tool for the detection of protective agents applied on hystorical buildings

    Science.gov (United States)

    Vettori, S.; Pecchioni, E.; Camaiti, M.; Garfagnoli, F.; Benvenuti, M.; Costagliola, P.; Moretti, S.

    2012-04-01

    In the recent past, a wide range of protective products (in most cases, synthetic polymers) have been applied to the surfaces of ancient buildings/artefacts to preserve them from alteration [1]. The lack of a detailed mapping of the permanence and efficacy of these treatments, in particular when applied on large surfaces such as building facades, may be particularly noxious when new restoration treatments are needed and the best choice of restoration protocols has to be taken. The presence of protective compounds on stone surfaces may be detected in laboratory by relatively simple diagnostic tests, which, however, normally require invasive (or micro-invasive) sampling methodologies and are time-consuming, thus limiting their use only to a restricted number of samples and sampling sites. On the contrary, hyperspectral sensors are rapid, non-invasive and non-destructive tools capable of analyzing different materials on the basis of their different patterns of absorption at specific wavelengths, and so particularly suitable for the field of cultural heritage [2,3]. In addition, they can be successfully used to discriminate between inorganic (i.e. rocks and minerals) and organic compounds, as well as to acquire, in short times, many spectra and compositional maps at relatively low costs. In this study we analyzed a number of stone samples (Carrara Marble and biogenic calcarenites - "Lecce Stone" and "Maastricht Stone"-) after treatment of their surfaces with synthetic polymers (synthetic wax, acrylic, perfluorinated and silicon based polymers) of common use in conservation-restoration practice. The hyperspectral device used for this purpose was ASD FieldSpec FR Pro spectroradiometer, a portable, high-resolution instrument designed to acquire Visible and Near-Infrared (VNIR: 350-1000 nm) and Short-Wave Infrared (SWIR: 1000-2500 nm) punctual reflectance spectra with a rapid data collection time (about 0.1 s for each spectrum). The reflectance spectra so far obtained in

  6. How Do Nursing Students Use Digital Tools during Lectures?

    Science.gov (United States)

    Sebri, Isabelle; Bartier, Jean-Claude; Pelaccia, Thierry

    2016-01-01

    Teachers often wonder what students are doing during lectures, behind their computers, mobile phones and other digital tools. This study aimed to document the type of tools used during lectures by nursing students and what they do with them. We carried out a descriptive, prospective, multicentre study including 1446 nursing students in Alsace (France). The students filled in an anonymous questionnaire at the end of a lesson they had just attended. 99% of the students had taken at least one digital tool to the lesson. 90% had a mobile phone with them. It was mainly used for entertainment (particularly for sending and/or receiving text messages and consulting emails). 52% had a laptop with them. It was essentially used for academic tasks (taking notes, working on other teaching units or revising for exams). Most nursing students take a phone or laptop to lectures with them with the intention of using them for entertainment and learning respectively. These results could guide training establishments in drafting their institutional policy concerning the use of digital tools in class.

  7. How Do Nursing Students Use Digital Tools during Lectures?

    Directory of Open Access Journals (Sweden)

    Isabelle Sebri

    Full Text Available Teachers often wonder what students are doing during lectures, behind their computers, mobile phones and other digital tools. This study aimed to document the type of tools used during lectures by nursing students and what they do with them.We carried out a descriptive, prospective, multicentre study including 1446 nursing students in Alsace (France. The students filled in an anonymous questionnaire at the end of a lesson they had just attended.99% of the students had taken at least one digital tool to the lesson. 90% had a mobile phone with them. It was mainly used for entertainment (particularly for sending and/or receiving text messages and consulting emails. 52% had a laptop with them. It was essentially used for academic tasks (taking notes, working on other teaching units or revising for exams.Most nursing students take a phone or laptop to lectures with them with the intention of using them for entertainment and learning respectively. These results could guide training establishments in drafting their institutional policy concerning the use of digital tools in class.

  8. A Digital Tool Supporting Goal-Oriented Teaching in Classrooms

    DEFF Research Database (Denmark)

    Misfeldt, Morten; Bundsgaard, Jeppe; Slot, Marie Falkesgaard

    2015-01-01

    and objectives for their teaching; these form a challenge and a basis for developing a digital tool for mediating between curriculum and pedagogical practice. The motivation for revising the national curriculum and developing digital tools that support teaching is partly based on evidence that the previous...... national curriculum was not used to any particular extent by teachers (Danish Evaluation Institute 2012). Hence, the curriculum has been rebuilt based on recent trends in school development and curriculum research suggesting the importance of a competence framework, learning goals, and the aggregation...... of classroom data for efficient teaching (Earl and Fullan 2003). Learning goals are supposed to support the students’ pace and sense of progression, inform classroom decisions, structure teachers’ planning, and support the dialogue between teachers, students, and parents (Hattie 2009). Based on these concerns...

  9. A database of immunoglobulins with integrated tools: DIGIT.

    KAUST Repository

    Chailyan, Anna; Tramontano, Anna; Marcatili, Paolo

    2011-01-01

    The DIGIT (Database of ImmunoGlobulins with Integrated Tools) database (http://biocomputing.it/digit) is an integrated resource storing sequences of annotated immunoglobulin variable domains and enriched with tools for searching and analyzing them. The annotations in the database include information on the type of antigen, the respective germline sequences and on pairing information between light and heavy chains. Other annotations, such as the identification of the complementarity determining regions, assignment of their structural class and identification of mutations with respect to the germline, are computed on the fly and can also be obtained for user-submitted sequences. The system allows customized BLAST searches and automatic building of 3D models of the domains to be performed.

  10. A database of immunoglobulins with integrated tools: DIGIT.

    KAUST Repository

    Chailyan, Anna

    2011-11-10

    The DIGIT (Database of ImmunoGlobulins with Integrated Tools) database (http://biocomputing.it/digit) is an integrated resource storing sequences of annotated immunoglobulin variable domains and enriched with tools for searching and analyzing them. The annotations in the database include information on the type of antigen, the respective germline sequences and on pairing information between light and heavy chains. Other annotations, such as the identification of the complementarity determining regions, assignment of their structural class and identification of mutations with respect to the germline, are computed on the fly and can also be obtained for user-submitted sequences. The system allows customized BLAST searches and automatic building of 3D models of the domains to be performed.

  11. Hardware replacements and software tools for digital control computers

    International Nuclear Information System (INIS)

    Walker, R.A.P.; Wang, B-C.; Fung, J.

    1996-01-01

    computers which use 'Varian' technology. A new software program, Desk Top Tools, permits the designer greater flexibility in digital control computer software design and testing. This software development allows the user to emulate control of the CANDU reactor system by system. All discussions will highlight the ability of the replacements and the new developments to enhance the operation of the existing and 'repeat' plant digital control computers and will explore future applications of these developments. Examples of current use of all replacement components and software are provided. (author)

  12. Create, compose, connect! reading, writing, and learning with digital tools

    CERN Document Server

    Hyler, Jeremy

    2014-01-01

    Find out how to incorporate digital tools into your English language arts class to improve students' reading, writing, listening, and speaking skills. Authors Jeremy Hyler and Troy Hicks show you that technology is not just about making a lesson engaging; it's about helping students become effective creators and consumers of information in today's fast-paced world. You'll learn how to use mobile technologies to teach narrative, informational, and argument writing as well as visual literacy and multimodal research. Each chapter is filled with exciting lesson plans and tech tool suggestions that you can take back to your own classroom immediately.

  13. Technology tools to support reading in the digital age.

    Science.gov (United States)

    Biancarosa, Gina; Griffiths, Gina G

    2012-01-01

    Advances in digital technologies are dramatically altering the texts and tools available to teachers and students. These technological advances have created excitement among many for their potential to be used as instructional tools for literacy education. Yet with the promise of these advances come issues that can exacerbate the literacy challenges identified in the other articles in this issue. In this article Gina Biancarosa and Gina Griffiths characterize how literacy demands have changed in the digital age and how challenges identified in other articles in the issue intersect with these new demands. Rather than seeing technology as something to be fit into an already crowded education agenda, Biancarosa and Griffiths argue that technology can be conceptualized as affording tools that teachers can deploy in their quest to create young readers who possess the higher levels of literacy skills and background knowledge demanded by today's information-based society. Biancarosa and Griffiths draw on research to highlight some of the ways technology has been used to build the skills and knowledge needed both by children who are learning to read and by those who have progressed to reading to learn. In their review of the research, Biancarosa and Griffiths focus on the hardware and software used to display and interface with digital text, or what they term e-reading technology. Drawing on studies of e-reading technology and computer technology more broadly, they also reflect on the very real, practical challenges to optimal use of e-reading technology. The authors conclude by presenting four recommendations to help schools and school systems meet some of the challenges that come with investing in e-reading technology: use only technologies that support Universal Design for Learning; choose evidence-based tools; provide technology users with systemic supports; and capitalize on the data capacities and volume of information that technology provides.

  14. Compensation of Digital Competence Deficiency with Software Ergonomic Tools

    Directory of Open Access Journals (Sweden)

    Zoltán Nyikes

    2018-03-01

    Full Text Available In the contemporary digital world, a lot of information needs to be processed every day. Our security depends on the quick and accurate processing of this information. Figure-based information processing is faster and simpler than the text-based one. The level of IT skills and skills may be lower in this way, so a system that is applicable to a broader social circle is needed. The solution would be to make the use of info-communication tools accessible to people with low vision, those with learning difficulties, non-speakers, the elderly and children who are unable to read because of their age. In this article, the author attempts to illustrate the difference in the processing of visual and textual information through a simple survey and make recommendations for the ergonomic compensation of digital competence gaps with software.

  15. A portable software tool for computing digitally reconstructed radiographs

    International Nuclear Information System (INIS)

    Chaney, Edward L.; Thorn, Jesse S.; Tracton, Gregg; Cullip, Timothy; Rosenman, Julian G.; Tepper, Joel E.

    1995-01-01

    Purpose: To develop a portable software tool for fast computation of digitally reconstructed radiographs (DRR) with a friendly user interface and versatile image format and display options. To provide a means for interfacing with commercial and custom three-dimensional (3D) treatment planning systems. To make the tool freely available to the Radiation Oncology community. Methods and Materials: A computer program for computing DRRs was enhanced with new features and rewritten to increase computational efficiency. A graphical user interface was added to improve ease of data input and DRR display. Installer, programmer, and user manuals were written, and installation test data sets were developed. The code conforms to the specifications of the Cooperative Working Group (CWG) of the National Cancer Institute (NCI) Contract on Radiotherapy Treatment Planning Tools. Results: The interface allows the user to select DRR input data and image formats primarily by point-and-click mouse operations. Digitally reconstructed radiograph formats are predefined by configuration files that specify 19 calculation parameters. Enhancements include improved contrast resolution for visualizing surgical clips, an extended source model to simulate the penumbra region in a computed port film, and the ability to easily modify the CT numbers of objects contoured on the planning computed tomography (CT) scans. Conclusions: The DRR tool can be used with 3D planning systems that lack this functionality, or perhaps improve the quality and functionality of existing DRR software. The tool can be interfaced to 3D planning systems that run on most modern graphics workstations, and can also function as a stand-alone program

  16. Collaborative Digital Games as Mediation Tool to Foster Intercultural Integration in Primary Dutch Schools

    NARCIS (Netherlands)

    de la Hera Conde-Pumpido, T.|info:eu-repo/dai/nl/331869063; Paz Aléncar, Amanda

    2015-01-01

    The use of digital games has found to be an effective tool to reinforce teaching/learning practices. Several studies have already shown the benefits of the use of digital games in educational contexts. However, most of these studies are focused on how digital games can be used as a mediation tool in

  17. Implementation of a digital preparation validation tool in dental skills laboratory training.

    Science.gov (United States)

    Kozarovska, A; Larsson, C

    2018-05-01

    To describe the implementation of a digital tool for preparation validation and evaluate it as an aid in students' self-assessment. Students at the final semester of skills laboratory training were asked to use a digital preparation validation tool (PVT) when performing two different tasks; preparation of crowns for teeth 11 and 21. The students were divided into two groups. Group A self-assessed and scanned all three attempts at 21 ("prep-and-scan"). Group B self-assessed all attempts chose the best one and scanned it ("best-of-three"). The situation was reversed for 11. The students assessed five parameters of the preparation and marked them as approved (A) or failed (F). These marks were compared with the information from the PVT. The students also completed a questionnaire. Each question was rated from 1 to 5. Teachers' opinions were collected at staff meetings throughout the project. Most students in the "prep-and-scan" groups showed an increase in agreement between their self-assessment and the information from the PVT, whereas students in the "best-of-three" groups showed lower levels of agreement. All students rated the PVT positively. Most strongly agreed that the tool was helpful in developing skills (mean 4.15), easy to use (mean 4.23) and that it added benefits in comparison to existing assessment tools (mean 4.05). They did not however, fully agree that the tool is time efficient (mean 2.55), and they did not consider it a substitute for verbal teacher feedback. Teachers' feedback suggested advantages of the tool in the form of ease of use, visual aid and increasing interest and motivation during skills laboratory training however, they did not notice a reduction in need of verbal feedback. Within the limitations of the study, our conclusion is that a digital PVT may be a valuable adjunct to other assessment tools in skills laboratory training. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  18. Digital marketing as a tool for innovation and business leverage

    Directory of Open Access Journals (Sweden)

    Andrea Cristina Marin

    2018-01-01

    Full Text Available This article presents a research that sought to clarify and evidence the evolution of the historical scenario of marketing science and the sales processes attributed to it, contextualizing how such changes of concepts through their epochs of evolution and their paradigms were applied by companies as to the present day. The speed of structural changes in the new economy and the opportunities generated by current information and communication technologies require companies to continually rethink their business, analyzing new marketing concepts that outperform traditional marketing and can be used in the digital environment as a way of attracting and relationship with customers. This is a descriptive bibliographical research with a qualitative focus, which includes a brief historical survey about the science of Marketing, as well as an investigation that discusses the technology attributed to Digital Marketing as a tool for leveraging business in the contemporary model of today's companies, based on the works of the authors who discuss the theme, such as Las Casas (2009; At the end of the research it was possible to verify that the impact of the new information and communication technologies transformed the way in which the companies are currently related using new forms of advertisements to intensify and adapt the competitiveness established by the current market parameters to other competing companies .

  19. Audience Response Made Easy: Using Personal Digital Assistants as a Classroom Polling Tool

    Science.gov (United States)

    Menon, Anil S.; Moffett, Shannon; Enriquez, Melissa; Martinez, Miriam M.; Dev, Parvati; Grappone, Todd

    2004-01-01

    Both teachers and students benefit from an interactive classroom. The teacher receives valuable input about effectiveness, student interest, and comprehension, whereas student participation, active learning, and enjoyment of the class are enhanced. Cost and deployment have limited the use of existing audience response systems, allowing anonymous linking of teachers and students in the classroom. These limitations can be circumvented, however, by use of personal digital assistants (PDAs), which are cheaper and widely used by students. In this study, the authors equipped a summer histology class of 12 students with PDAs and wireless Bluetooth cards to allow access to a central server. Teachers displayed questions in multiple-choice format as a Web page on the server and students responded with their PDAs, a process referred to as polling. Responses were immediately compiled, analyzed, and displayed. End-of-class survey results indicated that students were enthusiastic about the polling tool. The surveys also provided technical feedback that will be valuable in streamlining future trials. PMID:14764615

  20. Investigating the Digital Addiction Level of the University Students According to Their Purposes for Using Digital Tools

    Science.gov (United States)

    Kesici, Ahmet; Tunç, Nazenin Fidan

    2018-01-01

    This study was carried out to investigate the digital addiction (DA) level of the university students according to their purposes for using digital tools. 527 students studying at the faculties of education of Erzincan, Dicle, and Siirt Universities participated this study in which general survey model was used. A form was used to reveal for which…

  1. Analog Tools in Digital History Classrooms: An Activity-Theory Case Study of Learning Opportunities in Digital Humanities

    Science.gov (United States)

    Craig, Kalani

    2017-01-01

    Digital humanities is often presented as classroom savior, a narrative that competes against the idea that technology virtually guarantees student distraction. However, these arguments are often based on advocacy and anecdote, so we lack systematic research that explores the effect of digital-humanities tools and techniques such as text mining,…

  2. Digital test assembly of truck parts with the IMMA-tool--an illustrative case.

    Science.gov (United States)

    Hanson, L; Högberg, D; Söderholm, M

    2012-01-01

    Several digital human modelling (DHM) tools have been developed for simulation and visualisation of human postures and motions. In 2010 the DHM tool IMMA (Intelligently Moving Manikins) was introduced as a DHM tool that uses advanced path planning techniques to generate collision free and biomechanically acceptable motions for digital human models (as well as parts) in complex assembly situations. The aim of the paper is to illustrate how the IPS/IMMA tool is used at Scania CV AB in a digital test assembly process, and to compare the tool with other DHM tools on the market. The illustrated case of using the IMMA tool, here combined with the path planner tool IPS, indicates that the tool is promising. The major strengths of the tool are its user friendly interface, the motion generation algorithms, the batch simulation of manikins and the ergonomics assessment methods that consider time.

  3. Digital Advocacy Stories: A Pedagogical Tool for Communicating and Strengthening Library Values

    Science.gov (United States)

    Moreillon, Judi; Hall, Ruth Nicole

    2014-01-01

    "Digital Advocacy Stories: A Pedagogical Tool for Communicating and Strengthening Library Values" is a case study conducted in LS5633: The Art of Storytelling. The purpose of this study was to investigate graduate student candidates' development of library values through the use of digital tools to create and disseminate advocacy…

  4. MALDI-TOF mass spectrometry following short incubation on a solid medium is a valuable tool for rapid pathogen identification from positive blood cultures.

    Science.gov (United States)

    Kohlmann, Rebekka; Hoffmann, Alexander; Geis, Gabriele; Gatermann, Sören

    2015-01-01

    approach allowed an optimized treatment recommendation. MALDI-TOF MS following 4h pre-culture is a valuable tool for rapid pathogen identification from positive blood cultures, allowing easy integration in diagnostic routine and the opportunity of considerably earlier treatment adaptation. Copyright © 2015 Elsevier GmbH. All rights reserved.

  5. Scripting-customised microscopy tools for Digital MicrographTM

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, D.R.G. [Materials and Engineering Science, ANSTO Materials PMB 1, Menai, NSW 2234 (Australia)]. E-mail: drm@ansto.gov.au; Schaffer, B. [Research Institute for Electron Microscopy, Graz University of Technology, Steyrergasse 17, A-8010 Graz (Austria)

    2005-07-15

    Software is an integral part of all electron microscopy systems, encompassing hardware control, data acquisition and processing. It is unlikely that any one software system will meet all the requirements of experienced users. However, if the software supports custom scripting, then users are well placed to address any shortcomings by writing their own software. In this paper, we highlight the scripting capability within Gatan Inc.'s Digital MicrographTM (DM) software, a widely used program for TEM imaging and EELS spectroscopy. We show how scripting can greatly extend the capabilities of the DM software, in tasks ranging in complexity from simple image manipulation through to full-blown microscope/imaging filter control and data acquisition. Scripting enables customised software tools to be developed to meet individual experimental needs, something which no software manufacturer could ever hope to do on a commercial basis. In essence, scripting allows the microscopist to drive the software rather than the software drive the microscopist. To foster an increased awareness and interest in DM scripting we have developed a web-based archive for DM scripts, which is freely accessible via the internet.

  6. Content marketing - the fundamental tool of digital marketing

    OpenAIRE

    Loredana PATRUTIU BALTES

    2015-01-01

    In the era of digitalization, the importance of digital marketing has increased from one year to another as part of the marketing strategy practiced by organizations of any type and any size. Given that digital marketing requires the existence of a content marketing, the success or the failure of the company’s online communication depends to a significant extent on the quality of its content marketing. In this context, besides promoting a high quality of the content marketing, ...

  7. Perceptions of digital marketing tools in new micro-enterprises

    OpenAIRE

    Isohella, L. (Lari); Oikarinen, E.-L. (Eeva-Liisa); Saarela, M. (Martti); Muhos, M. (Matti); Nikunen, T. (Tuulia)

    2017-01-01

    Abstract Digitalization is continuously forming our daily lives and routines. It offers us not only new and fascinating opportunities as consumers but also creates possibilities that were previously perceived as unavailable to companies. Digital marketing as a new medium in various business contexts has received much attention among researchers and practitioners. However, little research has been conducted on digital marketing in new micro-enterprises. Furthermore, the influence of human p...

  8. Digital Preservation Tools for Repository Managers 2: institutional and lifecycle preservation costs

    OpenAIRE

    Hitchcock, Steve; Beagrie, Neil; Hole, Brian

    2010-01-01

    The 5-module JISC KeepIt course on Digital Preservation Tools for Repository Managers was designed by repository managers. Each module consists of a mix of short presentations and hands-on exercises to learn about the basics and gain practice with each of the tools covered. Module 2 covers lifecycle costs for managing digital objects, based on the LIFE approach, and institutional costs. Tools include Keeping Research Data Safe (KRDS) a model, method and survey for assessing the institutional ...

  9. Digital Literacy: Tools and Methodologies for Information Society

    Science.gov (United States)

    Rivoltella, Pier Cesare, Ed.

    2008-01-01

    Currently in a state of cultural transition, global society is moving from a literary society to digital one, adopting widespread use of advanced technologies such as the Internet and mobile devices. Digital media has an extraordinary impact on society's formative processes, forcing a pragmatic shift in their management and organization. This…

  10. Supporting Digital Natives to Learn Effectively with Technology Tools

    Science.gov (United States)

    Keengwe, Jared; Georgina, David

    2013-01-01

    Majority of learners in our classrooms are digital natives or Millennials--a category of learners who tend toward independence and autonomy in their learning styles. The primary challenges then facing instructors include: How do digital natives learn and how do you teach them? The answers to these questions will help instructors to: (a) identify…

  11. Digital image technology and a measurement tool in physical models

    CSIR Research Space (South Africa)

    Phelp, David

    2006-05-01

    Full Text Available Advances in digital image technology has allowed us to use accurate, but relatively cost effective technology to measure a number of varied activities in physical models. The capturing and manipulation of high resolution digital images can be used...

  12. Digital storytelling: an innovative tool for practice, education, and research.

    Science.gov (United States)

    Lal, Shalini; Donnelly, Catherine; Shin, Jennifer

    2015-01-01

    Digital storytelling is a method of using storytelling, group work, and modern technology to facilitate the creation of 2-3 minute multi-media video clips to convey personal or community stories. Digital storytelling is being used within the health care field; however, there has been limited documentation of its application within occupational therapy. This paper introduces digital storytelling and proposes how it can be applied in occupational therapy clinical practice, education, and research. The ethical and methodological challenges in relation to using the method are also discussed.

  13. Content marketing - the fundamental tool of digital marketing

    Directory of Open Access Journals (Sweden)

    Loredana PATRUTIU BALTES

    2015-12-01

    Full Text Available In the era of digitalization, the importance of digital marketing has increased from one year to another as part of the marketing strategy practiced by organizations of any type and any size. Given that digital marketing requires the existence of a content marketing, the success or the failure of the company’s online communication depends to a significant extent on the quality of its content marketing. In this context, besides promoting a high quality of the content marketing, the digital marketers must undertake an analysis of the target in order to adapt their content and to choose the right way of promoting it. This article defines the concept of content marketing and the importance that it has within the marketing policies, as well as the proper means of developing a correct content marketing strategy.

  14. Digital Subtraction Angiography (DSA) "Road Map": An Angiographic Tool

    Science.gov (United States)

    Turski, P. A.; Stieghorst, M. F.; Strother, C. M.; Crummy, A. B.; Lieberman, R. P.; Mistretta, C. A.

    1982-12-01

    Continuous Digital subtraction combined with intraarterial injections of contrast medium permits the display of arterial structures during real time fluoroscopy. This DSA "road map" facilitates selective catheterization and has proved useful in interventional procedures.

  15. Script Towards Research 2.0: The Influence of Digital and Online Tools in Academic Research

    Directory of Open Access Journals (Sweden)

    Gabriela Grosseck

    2016-07-01

    Full Text Available The new Internet technologies have infiltrated in a stunning way the academic environment, both at individual and at institutional level. Therefore, more and more teachers have started educational blogs, librarians are active on Twitter, other educational actors curate web content, students post on Instagram or Flickr, and university departments have Facebook pages and/or YouTube accounts etc. Today, the use of web technology has become “a legitimate activity in many areas of higher education” (Waycott, 2010 and a considerable shift to digital academic research has gradually occurred. Teachers are encouraging students to take up digital tools for research and writing, thus revealing new ways of using information and communication technologies for academic purposes and not just for socializing. The main objective of this paper is to investigate the effects of integrating diverse digital, Web 2.0 tools and resources and OERs/MOOCs in research and in the construction of students’ academic texts. We aim to stress the increasing influence of digital and online tools in academic research and writing. Teachers, specialists, and students alike are affected by this process. In order to show how, we explore the following issues: What is Research 2.0? Which digital/online tools have we used to assist our students? What are the challenges for academic research using digital / web 2.0 tools? And how do digital tools shape academic research?

  16. Micro-enterprises’ digital marketing tools for building customer relationships

    OpenAIRE

    Nikunen, T. (Tuulia); Saarela, M. (Martti); OIkarinen, E.-L. (Eeva-Liisa); Muhos, M. (Matti); Isohella, L. (Lari)

    2017-01-01

    Abstract The digital marketing environment is changing rapidly, and, for micro-enterprises, digital marketing is currently a vitally important opportunity. Attracting customers, engaging customers’ interest and participation, retaining customers, learning customers’ preferences and relating to customers are key strategies in building strong customer relationships. However, many enterprises ignore longer-term aspects of managing customer relationships. The study sought to contribute to a mo...

  17. Digital Capture and Fabrication Tools for Interpretation of Historic Sites

    Science.gov (United States)

    Ackerman, A.; Glekas, E.

    2017-08-01

    Historic sites and the narratives they produce can have a lasting impact on the community through public engagement and education. However, when these sites are neglected and lost over time, opportunities to engage the public with the history of these places is lost with them. The interpretation of heritage that has been lost or forgotten is an emerging trend in humanities studies. This trend, in combination with technological advancements in digital media and representation, presents an innovative opportunity for historic preservation professionals to create new paths for public engagement. This paper discusses applications of photogrammetry, 3D modeling, and digital fabrication in digitally reconstructing interpretive models of the Larz Anderson Estate (now Larz Anderson Park). This site has changed dramatically through its transition from a private estate to a public park and recreation area, with few remnants of the original estate remaining extant. The above stated use of digital strategies aims to create digital and physical models of the estate's change over time, with the aim of interpreting the site's lost heritage for the public. Combining existing archival research and heritage documentation methods with these digital representation techniques tells the story of a place that no longer exists.

  18. The Impact of Digital Tools on Student Writing and How Writing Is Taught in Schools

    Science.gov (United States)

    Purcell, Kristen; Buchanan, Judy; Friedrich, Linda

    2013-01-01

    A survey of 2,462 Advanced Placement (AP) and National Writing Project (NWP) teachers finds that digital technologies are shaping student writing in myriad ways and have also become helpful tools for teaching writing to middle and high school students. These teachers see the internet and digital technologies such as social networking sites, cell…

  19. Digital Interactive Narrative Tools for Facilitating Communication with Children During Counseling

    DEFF Research Database (Denmark)

    Baceviciute, Sarune; Albæk, Katharina R.R.; Arsovski, Aleksandar

    2012-01-01

    the reconciliation between free-play and narratives afforded by interactive digital tools in order to promote children‟s engagement. We present a digital interactive narrative application integrated with a “step-by-step” guide to the counselor, which could be adapted to many different situations and contexts where...

  20. Digital interactive narrative tools for facilitating communication with children during counseling: A case for audiology

    DEFF Research Database (Denmark)

    Baceviciute, Sarune; Rützou Albæk, Katharina Renée; Arsovski, Aleksandar

    2012-01-01

    the reconciliation between free-play and narratives afforded by interactive digital tools in order to promote children's engagement. We present a digital interactive narrative application integrated with a ``step-by-step'' guide to the counselor, which could be adapted to many different situations and contexts where...

  1. Evaluating the impact of digital tools to teach math and science in ...

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

    Evaluating the impact of digital tools to teach math and science in Chile ... Caribbean countries fare poorly in international comparisons of learning assessments. ... to support governments grappling with intellectual property issues in an age of ...

  2. Use and Perception of Digital Marketing Tools for Micro-Enterprises in Tijuana

    OpenAIRE

    Jorge Carlos MORGAN MEDINA; Alfredo Mario MEJÍA RAMÍREZ; Carolina PIZANO NORIEGA

    2014-01-01

    In modern world, big changes are occurring in short time frames, businesses are dealing with information and communication technologies adaptation and updating problems, being such as Internet and Web 2.0. There are different tools that allow efficiency in internal and external communications of the company; when it comes to external communication, digital marketing is gaining more ground and an increasing number of companies invest more in that kind of strategies. Digital marketing as a tool...

  3. Application of Benford's law: a valuable tool for detecting scientific papers with fabricated data? : A case study using proven falsified articles against a comparison group.

    Science.gov (United States)

    Hüllemann, S; Schüpfer, G; Mauch, J

    2017-10-01

    In naturally occurring numbers the frequencies of digits 1-9 in the leading position are counterintuitively distributed because the frequencies of occurrence are unequal. Benford-Newcomb's law describes the expected distribution of these frequencies. It was previously shown that known fraudulent articles consistently violated this law. To compare the features of 12 known fraudulent articles from a single Japanese author to the features of 13 articles in the same research field from other Japanese authors, published during the same time period and identified with a Medline database search. All 25 articles were assessed to determine whether the data violated the law. Formulas provided by the law were used to determine the frequencies of occurrence for the first two leading digits in manually extracted numbers. It was found that all the known fraudulent papers violated the law and 6 of the 13 articles used for comparison followed the law. Assuming that the articles in the comparison group were not falsified or fabricated, the sensitivity of assessing articles with Benford-Newcomb's law was 100% (95% confidence interval CI: 73.54-100%) but the specificity was only 46.15% (95% CI: 19.22-74.87%) and the positive predictive value was 63.16% (95% CI: 38.36-83.71%). All 12 of the known falsified articles violated Benford-Newcomb's law, which indicated that this analysis had a high sensitivity. The low specificity of the assessment may be explained by the assumptions made about the articles identified for comparison. Violations of Benford-Newcomb's law about the frequencies of the leading digits cannot serve as proof of falsification but they may provide a basis for deeper discussions between the editor and author about a submitted work.

  4. Application of a 16-bit microprocessor to the digital control of machine tools

    International Nuclear Information System (INIS)

    Issaly, Alain

    1979-01-01

    After an overview of machine tools (various types, definition standardization, associated technologies for motors and position sensors), this research thesis describes the principles of computer-based digital control: classification of machine tool command systems, machining programming, programming languages, dialog function, interpolation function, servo-control function, tool compensation function. The author reports the application of a 16-bit microprocessor to the computer-based digital control of a machine tool: feasibility, selection of microprocessor, hardware presentation, software development and description, machining mode, translation-loading mode

  5. Educational Impact of Digital Visualization Tools on Digital Character Production Computer Science Courses

    Science.gov (United States)

    van Langeveld, Mark Christensen

    2009-01-01

    Digital character production courses have traditionally been taught in art departments. The digital character production course at the University of Utah is centered, drawing uniformly from art and engineering disciplines. Its design has evolved to include a synergy of computer science, functional art and human anatomy. It gives students an…

  6. Digital Leadership

    DEFF Research Database (Denmark)

    Zupancic, Tadeja; Verbeke, Johan; Achten, Henri

    2016-01-01

    Leadership is an important quality in organisations. Leadership is needed to introduce change and innovation. In our opinion, in architectural and design practices, the role of leadership has not yet been sufficiently studied, especially when it comes to the role of digital tools and media....... With this paper we intend to initiate a discussion in the eCAADe community to reflect and develop ideas in order to develop digital leadership skills amongst the membership. This paper introduces some important aspects, which may be valuable to look into when developing digital leadership skills....

  7. A little bird told me : Twitter may be growing at 700 per cent a week, but is it a valuable tool for the patch, or a distraction?

    Energy Technology Data Exchange (ETDEWEB)

    Stastny, P

    2009-10-15

    The social networking tool Twitter may soon be adopted by petroleum industry workers as a means of ensuring increased communications. Comprised of social networks, link sharing, and live searching, the tool can be used to conduct subject searchers as well as to link to quarterly reports and press releases. Twitter is also being used to manage crisis communications as well as to monitor activities on the Internet. Twitter may also provide a means for oil and gas operators to follow influential industry bloggers as well as to develop effective communications strategies. It was concluded that Twitter may offer an opportunity for companies to participate in non-traditional communications approaches such as online forums, and other media-sharing tools. 1 fig.

  8. Reflective practice as a tool to teach digital professionalism.

    Science.gov (United States)

    Kung, Justin W; Eisenberg, Ronald L; Slanetz, Priscilla J

    2012-11-01

    Digital professionalism is increasingly being integrated into postgraduate medical education. We developed a small-group, reflective practice-based session incorporating radiology-specific cases to heighten residents' awareness about digital professionalism. Case-based, radiology-specific scenarios were created for a small-group, reflective practice-based session on digital professionalism. Anonymous pre- and postsession surveys evaluating residents' use of social media and their thoughts about the session were administered to the radiology residents. Twenty-five of 38 (66%) residents responded to the presession survey with 40% (10/25) reporting daily social media use; 50% (12/24) witnessing an unprofessional posting on Facebook; and 8% (2/25) posting something unprofessional themselves. Of the 21 residents who attended the session, 13 (62%) responded to the postsession survey. Residents reported that the session added to their understanding of professionalism 3.92, 95% CI (3.57-4.27). As a result of the session, residents stated that they were more aware of protecting patient privacy and confidentiality on social media sites 3.92, 95% CI (3.47-4.37), and would take a more active role in ensuring professional use of social media as it relates to patient care 4.00, 95% CI (3.66-4.34). Residents favorably viewed the reflective case-based session on digital professionalism as a means to be more aware of ways to avoid unprofessional interactions on the internet. Our results suggest that such reflective sessions are an effective method to educate residents on key concepts regarding digital professionalism. Copyright © 2012 AUR. Published by Elsevier Inc. All rights reserved.

  9. USING ONLINE TOOLS FOR EVALUATION THE DIGITAL COMPETENCE OF TEACHERS AND PRINCIPALS IN NORWAY

    Directory of Open Access Journals (Sweden)

    Iryna V. Ivanyuk

    2015-05-01

    Full Text Available The article is devoted to the problems of digital competence evaluation in general secondary education in Norway. Attention is drawn to the fact that the monitoring and evaluation of digital competence of the participants of the educational process in secondary schools at the national level, specially created Norwegian Centre for ICT in education. The content and process using online tools for self-evaluation of digital competence of teachers and principals are described. The examples of estimation of digital competence through online tools «School Mentor» and «Teacher Mentor» on levels and proposed activities to improve are presented. The main approaches used in the formation of scale evaluation of the level of digital competence of the teacher are found out.

  10. Challenging and valuable

    NARCIS (Netherlands)

    Van Hal, J.D.M.

    2008-01-01

    Challenging and valuable Inaugural speech given on May 7th 2008 at the occasion of the acceptance of the position of Professor Sustainable Housing Transformation at the faculty of Architeeture of the Delft University of Technology by Prof. J.D.M. van Hal MSc PhD.

  11. Digitizing the Facebow: A Clinician/Technician Communication Tool.

    Science.gov (United States)

    Kalman, Les; Chrapka, Julia; Joseph, Yasmin

    2016-01-01

    Communication between the clinician and the technician has been an ongoing problem in dentistry. To improve the issue, a dental software application has been developed--the Virtual Facebow App. It is an alternative to the traditional analog facebow, used to orient the maxillary cast in mounting. Comparison data of the two methods indicated that the digitized virtual facebow provided increased efficiency in mounting, increased accuracy in occlusion, and lower cost. Occlusal accuracy, lab time, and total time were statistically significant (Ptechnician communication.

  12. A Method and Support Tool for the Analysis of Human Error Hazards in Digital Devices

    International Nuclear Information System (INIS)

    Lee, Yong Hee; Kim, Seon Soo; Lee, Yong Hee

    2012-01-01

    In recent years, many nuclear power plants have adopted modern digital I and C technologies since they are expected to significantly improve their performance and safety. Modern digital technologies were expected to significantly improve both the economical efficiency and safety of nuclear power plants. However, the introduction of an advanced main control room (MCR) is accompanied with lots of changes in forms and features and differences through virtue of new digital devices. Many user-friendly displays and new features in digital devices are not enough to prevent human errors in nuclear power plants (NPPs). It may be an urgent to matter find the human errors potentials due to digital devices, and their detailed mechanisms. We can then consider them during the design of digital devices and their interfaces. The characteristics of digital technologies and devices may give many opportunities to the interface management, and can be integrated into a compact single workstation in an advanced MCR, such that workers can operate the plant with minimum burden under any operating condition. However, these devices may introduce new types of human errors, and thus we need a means to evaluate and prevent such errors, especially within digital devices for NPPs. This research suggests a new method named HEA-BIS (Human Error Analysis based on Interaction Segment) to confirm and detect human errors associated with digital devices. This method can be facilitated by support tools when used to ensure the safety when applying digital devices in NPPs

  13. Digital Games as Tools for Stimulating and Assessing Reasoning Skills

    Directory of Open Access Journals (Sweden)

    Rosa Maria Bottino

    2016-04-01

    Full Text Available This paper offers some thoughts on the use of educational digital logic games. Specifically refers to a number of research experiments conducted by ITD-CNR, which have highlighted the significant potential of digital games to help develop and/or consolidation of logical thinking and reasoning skills in students of primary and secondary school level. It offers a brief overview of four research experiences carried out by multidisciplinary teams coordinated by ITD-CNR since the early 2000s These experiences have highlighted the high potential of digital games to develop and strengthen logical thinking skills and have shown the positive impact of their use even on school performance. Verificare e stimolare le abilità di ragionamento con i giochi digitaliQuesto contributo propone alcune riflessioni sull’uso educativo dei giochi logici digitali. In particolare fa riferimento ad alcune esperienze di ricerca condotte dall’Istituto di Tecnologie Didattiche - Consiglio Nazionale delle Ricerche (ITD-CNR che hanno evidenziato le interessanti potenzialità dei giochi digitali per contribuire allo sviluppo e/o al consolidamento del pensiero logico e delle abilità di ragionamento in studenti di scuola primaria e secondaria di primo grado. Si propone un breve excursus su quattro esperienze di ricerca svolte da equipe multidisciplinari coordinate da ITD-CNR a partire dai primi anni Duemila. Tali esperienze hanno messo in luce l’alto potenziale dei giochi digitali per sviluppare e potenziare abilità di pensiero logico ed hanno evidenziato il positivo impatto del loro uso anche sul rendimento scolastico.

  14. Digitized Educational Technology: A Learning Tool Using Remotely Sensed Data

    Science.gov (United States)

    Love, Gloria Carter

    1999-01-01

    Digitized Educational software for different levels of instruction were developed and placed on the web (geocities). Students attending the Pre-Engineering Summer 1998 Camp at Dillard University explored the use of the software which included presentations, applications, and special exercises. Student comments were received and considered for adjustments. The second outreach program included students from Colton Junior High School and Natural Science Majors at Dillard University. The Natural Majors completed a second survey concerning reasons why students selected majors in the Sciences and Mathematics. Two student research assistants (DU) and faculty members/parents of Colton Junior High assisted.

  15. Construction of Two mCherry Plasmids (pXG-mCherry for Transgenic Leishmania: Valuable Tools for Future Molecular Analysis

    Directory of Open Access Journals (Sweden)

    Andrés Vacas

    2017-01-01

    Full Text Available Leishmania is the causative agent of leishmaniasis, a neglected tropical disease that affects more than 12 million people around the world. Current treatments are toxic and poorly effective due to the acquisition of resistance within Leishmania populations. Thus, the pursuit for new antileishmanial drugs is a priority. The available methods for drug screening based on colorimetric assays using vital dyes are time-consuming. Currently, the use of fluorescent reporter proteins is replacing the use of viability indicator dyes. We have constructed two plasmids expressing the red fluorescent protein mCherry with multiple cloning sites (MCS, adequate for N- and C-terminal fusion protein constructs. Our results also show that the improved pXG-mCherry plasmid can be employed for drug screening in vitro. The use of the red fluorescent protein, mCherry, is an easier tool for numerous assays, not only to test pharmacological compounds, but also to determine the subcellular localization of proteins.

  16. Recovering valuable liquid hydrocarbons

    Energy Technology Data Exchange (ETDEWEB)

    Pier, M

    1931-06-11

    A process for recovering valuable liquid hydrocarbons from coking coal, mineral coal, or oil shale through treatment with hydrogen under pressure at elevated temperature is described. Catalysts and grinding oil may be used in the process if necessary. The process provides for deashing the coal prior to hydrogenation and for preventing the coking and swelling of the deashed material. During the treatment with hydrogen, the coal is either mixed with coal low in bituminous material, such as lean coal or active coal, as a diluent or the bituminous constituents which cause the coking and swelling are removed by extraction with solvents. (BLM)

  17. Digital marketing strategies in the luxury fashion sector. Interaction and social networks as a necessary tool

    OpenAIRE

    González Romo, Zahaira; Plaza Romero, Noemí

    2017-01-01

    Luxury brands reinvent themselves in their marketing and business strategies to adapt and approach emerging markets eager to consume luxury fashion, which is why digital marketing becomes an essential tool for the communication of luxury brands leaders in the market with their younger audiences. The present research aims to know what are the current strategies in digital marketing that are being carried out by the brands of the luxury fashion sector. The aim is to identify the most relevant a...

  18. Facebook Tools and Digital Learning Achievements in Higher Education

    Science.gov (United States)

    Davidovitch, Nitza; Belichenko, Margarita

    2018-01-01

    During recent years there has been a significant increase in the usage of technological tools in general, and in academic teaching in particular. Many programs have been developed, including online teaching and online courses at educational institutions. In this paper, we discuss the Facebook social network and its use at the University. The…

  19. Teaching and Learning: Using Digital Tools for Progressive Assessment

    DEFF Research Database (Denmark)

    Kastbjerg, Rita B.; Petersson, Eva; Lewis Brooks, Anthony

    2008-01-01

      Non-biased assessment becomes a reality when Information and Communication Technology (ICT) is implemented as a pedagogical tool to augment teacher practice and student learning. This paper details a study that was undertaken at a secondary school in Lithuania involving four educators and 200...... in education to address future augmented teacher - students' liaisons....

  20. Digital image processor as a human factors engineering tool

    International Nuclear Information System (INIS)

    Clayhold, J.A.; Cook, S.A.; Harrington, T.P.; Toffer, H.

    1982-01-01

    Safe and efficient operation of a nuclear reactor requires assimilation by the operators of a large amount of information. This information which includes pressure, temperature and flow conditions, rod and valve positions, and power output is usually presented to the operator in analog form on meters, position indicators, or numerically on digital readouts. Compounding the data assimilation problem is the fact that the meters, readouts, and indicators are usually distributed throughout the control room. The plant parameter and instrumentation displays need to be visible, concise, and concentrated such that an operator can readily survey and understand the information and take proper action during a transient event. This paper describes a technique for condensing a large amount of reactor operating information into a compact readily comprehensible display to assist the reactor operator with his tasks

  1. Evaluation of a New Digital Automated Glycemic Pattern Detection Tool.

    Science.gov (United States)

    Comellas, María José; Albiñana, Emma; Artes, Maite; Corcoy, Rosa; Fernández-García, Diego; García-Alemán, Jorge; García-Cuartero, Beatriz; González, Cintia; Rivero, María Teresa; Casamira, Núria; Weissmann, Jörg

    2017-11-01

    Blood glucose meters are reliable devices for data collection, providing electronic logs of historical data easier to interpret than handwritten logbooks. Automated tools to analyze these data are necessary to facilitate glucose pattern detection and support treatment adjustment. These tools emerge in a broad variety in a more or less nonevaluated manner. The aim of this study was to compare eDetecta, a new automated pattern detection tool, to nonautomated pattern analysis in terms of time investment, data interpretation, and clinical utility, with the overarching goal to identify early in development and implementation of tool areas of improvement and potential safety risks. Multicenter web-based evaluation in which 37 endocrinologists were asked to assess glycemic patterns of 4 real reports (2 continuous subcutaneous insulin infusion [CSII] and 2 multiple daily injection [MDI]). Endocrinologist and eDetecta analyses were compared on time spent to analyze each report and agreement on the presence or absence of defined patterns. eDetecta module markedly reduced the time taken to analyze each case on the basis of the emminens eConecta reports (CSII: 18 min; MDI: 12.5), compared to the automatic eDetecta analysis. Agreement between endocrinologists and eDetecta varied depending on the patterns, with high level of agreement in patterns of glycemic variability. Further analysis of low level of agreement led to identifying areas where algorithms used could be improved to optimize trend pattern identification. eDetecta was a useful tool for glycemic pattern detection, helping clinicians to reduce time required to review emminens eConecta glycemic reports. No safety risks were identified during the study.

  2. Ongoing development of digital radiotherapy plan review tools

    International Nuclear Information System (INIS)

    Ebert, M.A.; Hatton, J.; Cornes, D.

    2011-01-01

    Full text: To describe ongoing development of software to support the review of radiotherapy treatment planning system (TPS) data. The 'SWAN' software program was conceived in 2000 and initially developed for the RADAR (TROG 03.04) prostate radiotherapy trial. Validation of the SWAN program has been occurring via implementation by TROG in support of multiple clinical trials. Development has continued and the SWAN software program is now supported by modular components which comprise the 'SW AN system'. This provides a comprehensive set of tools for the review, analysis and archive of TPS exports. The SWAN system has now been used in support of over 20 radiotherapy trials and to review the plans of over 2,000 trial participants. The use of the system for the RADAR trial is now culminating in the derivation of dose-outcomes indices for prostate treatment toxicity. Newly developed SWAN tools include enhanced remote data archive/retrieval, display of dose in both relative and absolute modes, and interfacing to a Matlab-based add-on ('VAST') that allows quantitative analysis of delineated volumes including regional overlap statistics for multi-observer studies. Efforts are continuing to develop the SWAN system in the context of international collaboration aimed at harmonising the quality-assurance activities of collaborative trials groups. Tools such as the SWAN system are essential for ensuring the collection of accurate and reliable evidence to guide future radiotherapy treatments. One of the principal challenges of developing such a tool is establishing a development path that will ensure its validity and applicability well into the future.

  3. First Year Digital Marketing Plan : Case: Arctos

    OpenAIRE

    Järvelin, Reetta

    2016-01-01

    Digital marketing is becoming increasingly important, as communication through digital chan-nels develops and some aspects of traditional marketing become irrelevant. Digital marketing focuses on current and relevant methods of reaching audiences, making it a valuable marketing asset for businesses. This thesis is a study into the field of digital marketing, including common tools and best practices. The thesis is a project-based thesis, which aims to create a complete digital marketing p...

  4. Digital storytelling: a tool for health promotion and cancer awareness in rural Alaskan communities

    Directory of Open Access Journals (Sweden)

    Melany Cueva

    2015-09-01

    Full Text Available Background: The purpose of this study was to learn community members’ perspectives about digital storytelling after viewing a digital story created by a Community Health Aide/Practitioner (CHA/P. Methods: Using a qualitative research design, we explored digital storytelling likeability as a health-messaging tool, health information viewers reported learning and, if viewing, cancer-related digital stories facilitated increased comfort in talking about cancer. In addition, we enquired if the digital stories affected how viewers felt about cancer, as well as if viewing the digital stories resulted in health behaviour change or intent to change health behaviour. Findings: A total of 15 adult community members participated in a 30–45 minute interview, 1–5 months post-viewing of a CHA/P digital story. The majority (13 of viewers interviewed were female, all were Alaska Native and they ranged in age from 25 to 54 years with the average age being 40 years. Due to the small size of communities, which ranged in population from 160 to 2,639 people, all viewers knew the story creator or knew of the story creator. Viewers reported digital stories as an acceptable, emotionally engaging way to increase their cancer awareness and begin conversations. These conversations often served as a springboard for reflection, insight, and cancer-prevention and risk-reduction activities.

  5. Digital storytelling: a tool for health promotion and cancer awareness in rural Alaskan communities.

    Science.gov (United States)

    Cueva, Melany; Kuhnley, Regina; Revels, Laura; Schoenberg, Nancy E; Dignan, Mark

    2015-01-01

    The purpose of this study was to learn community members' perspectives about digital storytelling after viewing a digital story created by a Community Health Aide/Practitioner (CHA/P). Using a qualitative research design, we explored digital storytelling likeability as a health-messaging tool, health information viewers reported learning and, if viewing, cancer-related digital stories facilitated increased comfort in talking about cancer. In addition, we enquired if the digital stories affected how viewers felt about cancer, as well as if viewing the digital stories resulted in health behaviour change or intent to change health behaviour. A total of 15 adult community members participated in a 30-45 minute interview, 1-5 months post-viewing of a CHA/P digital story. The majority (13) of viewers interviewed were female, all were Alaska Native and they ranged in age from 25 to 54 years with the average age being 40 years. Due to the small size of communities, which ranged in population from 160 to 2,639 people, all viewers knew the story creator or knew of the story creator. Viewers reported digital stories as an acceptable, emotionally engaging way to increase their cancer awareness and begin conversations. These conversations often served as a springboard for reflection, insight, and cancer-prevention and risk-reduction activities.

  6. Differential Power Analysis as a digital forensic tool.

    Science.gov (United States)

    Souvignet, T; Frinken, J

    2013-07-10

    Electronic payment fraud is considered a serious international crime by Europol. An important part of this fraud comes from payment card data skimming. This type of fraud consists of an illegal acquisition of payment card details when a user is withdrawing cash at an automated teller machine (ATM) or paying at a point of sale (POS). Modern skimming devices, also known as skimmers, use secure crypto-algorithms (e.g. Advanced Encryption Standard (AES)) to protect skimmed data stored within their memory. In order to provide digital evidence in criminal cases involving skimmers, law enforcement agencies (LEAs) must retrieve the plaintext skimmed data, generally without having knowledge of the secret key. This article proposes an alternative to the current solution at the Bundeskriminalamt (BKA) to reveal the secret key. The proposed solution is non-invasive, based on Power Analysis Attack (PAA). This article first describes the structure and the behaviour of an AES skimmer, followed by the proposal of the full operational PAA process, from power measurements to attack computation. Finally, it presents results obtained in several cases, explaining the latest improvements and providing some ideas for further developments. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  7. An Open-Source Tool Set Enabling Analog-Digital-Software Co-Design

    Directory of Open Access Journals (Sweden)

    Michelle Collins

    2016-02-01

    Full Text Available This paper presents an analog-digital hardware-software co-design environment for simulating and programming reconfigurable systems. The tool simulates, designs, as well as enables experimental measurements after compiling to configurable systems in the same integrated design tool framework. High level software in Scilab/Xcos (open-source programs similar to MATLAB/Simulink that converts the high-level block description by the user to blif format (sci2blif, which acts as an input to the modified VPR tool, including the code v p r 2 s w c s , encoding the specific platform through specific architecture files, resulting in a targetable switch list on the resulting configurable analog–digital system. The resulting tool uses an analog and mixed-signal library of components, enabling users and future researchers access to the basic analog operations/computations that are possible.

  8. Use and Perception of Digital Marketing Tools for Micro-Enterprises in Tijuana

    Directory of Open Access Journals (Sweden)

    Jorge Carlos MORGAN MEDINA

    2014-02-01

    Full Text Available In modern world, big changes are occurring in short time frames, business are dealing with information and communication technologies adaptation and updating problems, being such as Internet and Web 2.0. There are different tools that allow efficiency in internal and external communications of the company; when it comes to external communication, digital marketing is gaining more ground and an increasing number of companies invest more in that kind of strategies. Digital marketing as a tool for business is a great advantage that not all recognize, even much less number of companies use it, in particular microenterprises. There are many factors that influence the decision to adopt digital marketing strategies and activities. The present paper presents the scores for the different digital marketing activities as perceived and implemented by micro-enterprises in the city of Tijuana. The main reasons why they do not perform digital marketing activities are: they do not believe it necessary, training outdates and price. Companies mainly perform activities in social networks, in the company website, emailing and online advertising, while they qualify email, website, Facebook and Google Maps as the most useful digital marketing activities. This information can be used both by microenterprises as by suppliers to generate profitable strategic alliances.

  9. A Tool for Assessing the Text Legibility of Digital Human Machine Interfaces

    Energy Technology Data Exchange (ETDEWEB)

    Roger Lew; Ronald L. Boring; Thomas A. Ulrich

    2015-08-01

    A tool intended to aid qualified professionals in the assessment of the legibility of text presented on a digital display is described. The assessment of legibility is primarily for the purposes of designing and analyzing human machine interfaces in accordance with NUREG-0700 and MIL-STD 1472G. The tool addresses shortcomings of existing guidelines by providing more accurate metrics of text legibility with greater sensitivity to design alternatives.

  10. Digital stories as a tool for health promotion and youth engagement.

    Science.gov (United States)

    Fletcher, Sarah; Mullett, Jennifer

    2016-08-15

    To provide opportunities for intergenerational knowledge sharing for healthy lifestyles; to facilitate youth and Elder mentorship; and to increase the self-esteem of youth by celebrating identity, cultural practices and community connection through the creation and sharing of digital stories. A youth research team (8 youth) aged 13-25, youth participants (60 core participants and 170 workshop participants) and Elders (14) from First Nations communities. The project was conducted with participants from several communities on Vancouver Island through on-site workshops and presentations. Youth and Elders were invited to a 3-day digital story workshop consisting of knowledge-sharing sessions by Elders and digital story training by the youth research team. Workshop attendees returned to their communities to develop stories. The group re-convened at the university to create digital stories focused on community connections, family histories and healthy lifestyles. During the following year the research team delivered instructional sessions in communities on the digital story process. The youth involved reported increased pride in community as well as new or enhanced relationships with Elders. The digital stories method facilitated intergenerational interactions and engaged community members in creating a digital representation of healthy lifestyles. The process itself is an intervention, as it affords critical reflection on historical, cultural and spiritual ideas of health and what it means to be healthy in an Aboriginal community. It is a particularly relevant health promotion tool in First Nations communities with strong oral history traditions.

  11. Facebook: A Potentially Valuable Educational Tool?

    Science.gov (United States)

    Voivonta, Theodora; Avraamidou, Lucy

    2018-01-01

    This paper is concerned with the educational value of Facebook and specifically how it can be used in formal educational settings. As such, it provides a review of existing literature of how Facebook is used in higher education paying emphasis on the scope of its use and the outcomes achieved. As evident in existing literature, Facebook has been…

  12. Facebook : A potentially valuable educational tool?

    NARCIS (Netherlands)

    Voivonta, Theodora; Avraamidou, Lucy

    2018-01-01

    This paper is concerned with the educational value of Facebook and specifically how it can be used in formal educational settings. As such, it provides a review of existing literature of how Facebook is used in higher education paying emphasis on the scope of its use and the outcomes achieved. As

  13. A Design to Digitalize Hydraulic Cylinder Control of a Machine Tool ...

    African Journals Online (AJOL)

    Conventionally hydraulic piston - cylinder servos are actuated using analogue controls for machine tool axis drives. In this paper a design of the axis control system of an NC milling machine which employs a small stepping motor to digitally actuated hydraulic piston - cylinder servo drives existing on the machines Y-axis is ...

  14. Classroom Habit(us): Digital Learning Tools in a Blended Learning Program

    DEFF Research Database (Denmark)

    Borsotti, Valeria; Møllenbach, Emilie

    2016-01-01

    In this exploratory case study we map the educational practice of teachers and students in a professional master of Interaction Design. Through a grounded analysis of the context we describe and reflect on: 1) the use of digital learning tools in a blended learning environment, 2) co...

  15. 5 Myths about Classroom Technology: How Do We Integrate Digital Tools to Truly Enhance Learning?

    Science.gov (United States)

    Renwick, Matt

    2015-01-01

    What's keeping your school behind the technology curve? Is it a fear of the unfamiliar? Expenses? Or some other myth? Have you considered how students with special needs or students learning a second language may benefit from using digital tools? If you've fallen for the perception that technology is too expensive, unnecessary for real learning,…

  16. Educate at Penn State: Preparing Beginning Teachers with Powerful Digital Tools

    Science.gov (United States)

    Murray, Orrin T.; Zembal-Saul, Carla

    2008-01-01

    University based teacher education programs are slowly beginning to catch up to other professional programs that use modern digital tools to prepare students to enter professional fields. This discussion looks at how one teacher education program reached the conclusion that students and faculty would use notebook computers. Frequently referred to…

  17. Developing a free and easy to use digital goal setting tool for busy mums

    Directory of Open Access Journals (Sweden)

    Babs Evans

    2015-09-01

    Using data, research and the expertise of commercial and charity partners was an effective way to design a digital product to support behavioural change. By understanding the target audience from the beginning and involving them in the planning stages, the organisations were able to develop a tool the users want with a strong focus on user experience.

  18. The Integration of Digital Tools during Strategic and Interactive Writing Instruction

    Science.gov (United States)

    Kilpatrick, Jennifer Renée; Saulsburry, Rachel; Dostal, Hannah M.; Wolbers, Kimberly A.; Graham, Steve

    2014-01-01

    The purpose of this chapter is to gain insight from the ways a group of elementary teachers of the deaf and hard of hearing chose to integrate digital tools into evidence-based writing instruction and the ways these technologies were used to support student learning. After professional development that exposed these teachers to twelve new digital…

  19. Digital holographic microscopy: a novel tool to study the morphology, physiology and ecology of diatoms

    NARCIS (Netherlands)

    Zetsche, E.-M.; El Mallahi, A.; Meysman, F.J.R.

    2016-01-01

    Recent advances in optical components, computational hardware and image analysis algorithms have led to the development of a powerful new imaging tool, digital holographic microscopy (DHM). So far, DHM has been predominantly applied in the life sciences and medical research, and here, we evaluate

  20. The Importance of Theoretical Frameworks and Mathematical Constructs in Designing Digital Tools

    Science.gov (United States)

    Trinter, Christine

    2016-01-01

    The increase in availability of educational technologies over the past few decades has not only led to new practice in teaching mathematics but also to new perspectives in research, methodologies, and theoretical frameworks within mathematics education. Hence, the amalgamation of theoretical and pragmatic considerations in digital tool design…

  1. Collaborative Digital Games as Mediation Tool to Foster Intercultural Integration in Primary Dutch Schools

    NARCIS (Netherlands)

    A. Paz Alencar (Amanda); T. de la Hera Conde-Pumpido (Teresa)

    2015-01-01

    textabstractIn the Netherlands, the growing presence of immigrant children in schools has fueled scholarly interest in and concerns for examining the process of integration in school environments. The use of digital games has found to be an effective tool to reinforce teaching/learning practices.

  2. IdeMatch – a digital tool for innovative, social and transdisciplinary learning designs

    DEFF Research Database (Denmark)

    Hansen, Gitte Riis

    This paper presents IdeMatch which is a digital tool implemented in University College Zealand (UCZ) in spring 2015. IdeMatch is based on educational policies and educational structural intentions and needs, and this paper examines and offers an outline for the learning perspective and the impact...... that IdeMatch has got concerning teaching and learning designs....

  3. The effects of a digital formative assessment tool on spelling achievement : Results of a randomized experiment

    NARCIS (Netherlands)

    Faber, Janke M.; Visscher, Adrie J.

    2018-01-01

    In this study, a randomized experimental design was used to examine the effects of a digital formative assessment tool on spelling achievement of third grade students (eight-to nine-years-olds). The sample consisted of 30 experimental schools (n = 619) and 39 control schools (n = 986). Experimental

  4. Learning algebra on screen and on paper: The effect of using a digital tool on students' understanding

    NARCIS (Netherlands)

    Jupri, A.; Drijvers, P.H.M.; Van den Heuvel-Panhuizen, M.

    2016-01-01

    The use of digital tools in algebra education is expected to not only contribute to master skill, but also to acquire conceptual understanding. The question is how digital tools affect students’ thinking and understanding. This paper presents an analysis of data of one group of three grade seventh

  5. The effects of a digital formative assessment tool on mathematics achievement and student motivation : Results of a randomized experiment

    NARCIS (Netherlands)

    Faber, Janke; Luyten, Johannes W.; Visscher, Arend J.

    2017-01-01

    In this study a randomized experimental design was used to examine the effects of a digital formative assessment tool on mathematics achievement and motivation in grade three primary education (n schools = 79, n students = 1808). Experimental schools used a digital formative assessment tool whereas

  6. The use of the digital smile design concept as an auxiliary tool in periodontal plastic surgery.

    Science.gov (United States)

    Santos, Felipe Rychuv; Kamarowski, Stephanie Felice; Lopez, Camilo Andres Villabona; Storrer, Carmen Lucia Mueller; Neto, Alexandre Teixeira; Deliberador, Tatiana Miranda

    2017-01-01

    Periodontal surgery associated with prior waxing, mock-up, and the use of digital tools to design the smile is the current trend of reverse planning in periodontal plastic surgery. The objective of this study is to report a surgical resolution of the gummy smile using a prior esthetic design with the use of digital tools. A digital smile design and mock-up were used for performing gingival recontouring surgery. The relationship between the facial and dental measures and the incisal plane with the horizontal facial plane of reference were evaluated. The relative dental height x width was measured, and the dental contour drawing was inserted. Complementary lines are drawn such as the gingival zenith, joining lines of the gingival and incisal battlements. The periodontal esthetic was improved according to the established design digital smile pattern. These results demonstrate the importance of surgical techniques and are well accepted by patients and are easy to perform for the professional. When properly planned, they provide the desired expectations. Periodontal Surgical procedures associated with the design digital smile facilitate the communication between the patient and the professional. It is, therefore, essential to demonstrate the reverse planning of the smile and periodontal parameters with approval by the patient to solve the esthetic problem.

  7. Digital storytelling: a tool for expressing emotions - with instituionalised adolescents of paimio, Finland

    OpenAIRE

    Kharel, Sarada

    2012-01-01

    The use of digital storytelling as a tool for expressing emotions among adolescents under custody is a relatively new concept in the field of mental health care. Digital Storytelling uses media such as video, sound, and still images in order to tell a narrative. This mode can also be utilized within the field of mental health care as a vessel for mental health service users to express the illness experience in a more engaging manner. Additionally, it can help service providers to better unde...

  8. Digital Holography, a metrological tool for quantitative analysis: Trends and future applications

    Science.gov (United States)

    Paturzo, Melania; Pagliarulo, Vito; Bianco, Vittorio; Memmolo, Pasquale; Miccio, Lisa; Merola, Francesco; Ferraro, Pietro

    2018-05-01

    A review on the last achievements of Digital Holography is reported in this paper, showing that this powerful method can be a key metrological tool for the quantitative analysis and non-invasive inspection of a variety of materials, devices and processes. Nowadays, its range of applications has been greatly extended, including the study of live biological matter and biomedical applications. This paper overviews the main progresses and future perspectives of digital holography, showing new optical configurations and investigating the numerical issues to be tackled for the processing and display of quantitative data.

  9. What makes a sustainability tool valuable, practical and useful in real-world healthcare practice? A mixed-methods study on the development of the Long Term Success Tool in Northwest London.

    Science.gov (United States)

    Lennox, Laura; Doyle, Cathal; Reed, Julie E; Bell, Derek

    2017-09-24

    Although improvement initiatives show benefits to patient care, they often fail to sustain. Models and frameworks exist to address this challenge, but issues with design, clarity and usability have been barriers to use in healthcare settings. This work aimed to collaborate with stakeholders to develop a sustainability tool relevant to people in healthcare settings and practical for use in improvement initiatives. Tool development was conducted in six stages. A scoping literature review, group discussions and a stakeholder engagement event explored literature findings and their resonance with stakeholders in healthcare settings. Interviews, small-scale trialling and piloting explored the design and tested the practicality of the tool in improvement initiatives. National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care for Northwest London (CLAHRC NWL). CLAHRC NWL improvement initiative teams and staff. The iterative design process and engagement of stakeholders informed the articulation of the sustainability factors identified from the literature and guided tool design for practical application. Key iterations of factors and tool design are discussed. From the development process, the Long Term Success Tool (LTST) has been designed. The Tool supports those implementing improvements to reflect on 12 sustainability factors to identify risks to increase chances of achieving sustainability over time. The Tool is designed to provide a platform for improvement teams to share their own views on sustainability as well as learn about the different views held within their team to prompt discussion and actions. The development of the LTST has reinforced the importance of working with stakeholders to design strategies which respond to their needs and preferences and can practically be implemented in real-world settings. Further research is required to study the use and effectiveness of the tool in practice and assess engagement with

  10. Digital Storytelling as a Pedagogical Tool within a Didactic Sequence in Foreign Language Teaching

    Directory of Open Access Journals (Sweden)

    Agustín Reyes

    2012-12-01

    Full Text Available Digital storytelling constitutes a pedagogical tool for teachers to work on differentlinguistic skills while generating students’ interest and attention. This studyanalyses the usefulness of including digital storytelling within a didactic sequencein order to work on linguistic routines such as greetings and leave-takings inEnglish as a foreign language. To this aim, we have worked with first yearstudents in the Faculty of Education at the Universitat de València to improve theirability to adapt their language skills to specific situations within common dailyinteraction. We have designed a didactic sequence consisting of differentworkshops that have been put into practice in class. The sequence ends with afinal project in which students are expected to produce their own digital stories,showing thus what they have learnt. This final production has highlighted a clearimprovement in the use of linguistic routines, as well as in the use of morecomplex structures and of varied expressions used to open and close aconversation.

  11. Learning algebra on screen and on paper: The effect of using a digital tool on students' understanding

    Science.gov (United States)

    Jupri, Al; Drijvers, Paul; van den Heuvel-Panhuizen, Marja

    2016-02-01

    The use of digital tools in algebra education is expected to not only contribute to master skill, but also to acquire conceptual understanding. The question is how digital tools affect students" thinking and understanding. This paper presents an analysis of data of one group of three grade seventh students (12-13 year-old) on the use of a digital tool for algebra, the Cover-up applet for solving equations in particular. This case study was part of a larger teaching experiment on initial algebra enriched with digital technology which aimed to improve students" conceptual understanding and skills in solving equations in one variable. The qualitative analysis of a video observation, digital and written work showed that the use of the applet affects student thinking in terms of strategies used by students while dealing with the equations. We conclude that the effects of the use of the digital tool can be traced from student problem solving strategies on paper-and-pencil environment which are similar to strategies while working with the digital tool. In future research, we recommend to use specific theoretical lenses, such as the theory of instrumental genesis and the onto-semiotic approach, to reveal more explicit relationships between students" conceptual understanding and the use of a digital tool.

  12. Digital tool for detecting diabetic retinopathy in retinography image using gabor transform

    Science.gov (United States)

    Morales, Y.; Nuñez, R.; Suarez, J.; Torres, C.

    2017-01-01

    Diabetic retinopathy is a chronic disease and is the leading cause of blindness in the population. The fundamental problem is that diabetic retinopathy is usually asymptomatic in its early stage and, in advanced stages, it becomes incurable, hence the importance of early detection. To detect diabetic retinopathy, the ophthalmologist examines the fundus by ophthalmoscopy, after sends the patient to get a Retinography. Sometimes, these retinography are not of good quality. This paper show the implementation of a digital tool that facilitates to ophthalmologist provide better patient diagnosis suffering from diabetic retinopathy, informing them that type of retinopathy has and to what degree of severity is find . This tool develops an algorithm in Matlab based on Gabor transform and in the application of digital filters to provide better and higher quality of retinography. The performance of algorithm has been compared with conventional methods obtaining resulting filtered images with better contrast and higher.

  13. Digital stethoscope as an innovative tool on the teaching of auscultatory skills.

    Science.gov (United States)

    Mesquita, Claudio Tinoco; Reis, Jader Costa dos; Simões, Luciana Silveira; Moura, Eduardo Cardoso de; Rodrigues, Gustavo Amarante; Athayde, Carolina Cunto de; Machado, Hugo Lima; Lanzieri, Pedro Gemal

    2013-02-01

    Physical cardiovascular examination, particularly cardiac auscultation, is one of the most difficult clinical skills for students during their medical training. Studies suggest that the use of technologies such as digital stethoscope increase the accuracy of clinical examination, however, its impact on the teaching of cardiac auscultation for undergraduate students of medicine is not known. The objective is to demonstrate the usefulness of the digital stethoscope compared to traditional methods as a tool in the teaching of auscultatory skills. nterventional, longitudinal, controlled, unicenter and randomized study. Thirty-eight medicine students were enrolled for a cardiovascular semiology course lasting eight weeks. The course program included lectures and bedside practice in Cardiology wards. In the practical lessons, the students were randomized into two groups: 1) (n = 21) digital stethoscope (Littmann® Model 3200, 3M); and 2) (n = 17) conventional stethoscopes. A pre-training evaluation was conducted through a test using the software Heart Sounds®, which was repeated after the course. The average scores were compared by paired T test and unpaired T test. It is observed that, at the end of the course, there was a significantly greater improvement in the group that used the digital stethoscope (51.9%) compared to the group using the conventional stethoscope (29.5%). Short-term interventions for cardiac semiology teaching are able to contribute significantly to improving proficiency in the identification of heart sounds. The use of digital stethoscope proved to be a positive factor in teaching these skills.

  14. Necessity of creating digital tools to ensure efficiency of technical means

    Science.gov (United States)

    Rakov, V. I.; Zakharova, O. V.

    2018-05-01

    The authors estimated the problems of functioning of technical objects. The article notes that the increasing complexity of automation systems may lead to an increase of the redundant resource in proportion to the number of components and relationships in the system, and to the need of the redundant resource constant change that can make implementation of traditional structures with redundancy unnecessarily costly (Standby System, Fault Tolerance, High Availability). It proposes the idea of creating digital tools to ensure efficiency of technical facilities.

  15. A new digital dark age? Collaborative web tools, social media and long term preservation

    OpenAIRE

    Jeffrey, Stuart

    2012-01-01

    This paper examines the impact of exciting new approaches to open data sharing, collaborative web tools and social media on the sustainability of archaeological data. The archiving, reuse and re-analysis of data is often considered intrinsic to archaeological practice, not least because of the destructive nature of excavation. The idea that the pace of adoption of new digital technologies can outstrip the development of the infrastructure required for sustainable access to its outputs, ultima...

  16. Don't Be a Stranger-Designing a Digital Intercultural Sensitivity Training Tool that is Culture General

    NARCIS (Netherlands)

    Degens, Nick; Hofstede, Gert Jan; Beulens, Adrie; Krumhuber, E.; Kappas, Arvid

    2016-01-01

    Digital intercultural training tools play an important role in helping people to mediate cultural misunderstandings. In recent years, these tools were made to teach about specific cultures, but there has been little attention for the design of a tool to teach about differences across a wide range

  17. Don't Be a Stranger--Designing a Digital Intercultural Sensitivity Training Tool That Is Culture General

    Science.gov (United States)

    Degens, Nick; Hofstede, Gert Jan; Beulens, Adrie; Krumhuber, Eva; Kappas, Arvid

    2016-01-01

    Digital intercultural training tools play an important role in helping people to mediate cultural misunderstandings. In recent years, these tools were made to teach about specific cultures, but there has been little attention for the design of a tool to teach about differences across a wide range of cultures. In this work, we take the first steps…

  18. Validation of Align Technology's Treat III digital model superimposition tool and its case application.

    Science.gov (United States)

    Miller, R J; Kuo, E; Choi, W

    2003-01-01

    An assessment of the efficacy and accuracy of three-dimensional computer-based predictive orthodontic systems requires that new methods of treatment analysis be developed and validated. Invisalign is a digitally fabricated, removable orthodontic appliance that has been commercially available since 1999. It is made up of two main components: 1) computerized graphical images of a patient's teeth moving through a series of stages from initial to final position; 2) pressure formed clear plastic appliances made from stereolithography models of the images in the first component. The manufacturer of Invisalign (Align Technology, Inc.) has created a software tool that can be used to superimpose digital models to evaluate treatment outcomes in three dimensions. Using this software, research was conducted to determine if a single operator could repeatedly superimpose two identical digital models using 12 selected points from the palatal rugae over 10 trials. The tool was then applied to one subject's orthodontic treatment. EXPERIMENT VARIABLES: The output from this tool includes rotations, translations and morphological changes. For this study, translations and rotations were chosen. The results showed that the digital superimposition was reproducible, and that after multiple trials, the superimposition error decreased. The average error in x, y, z, Rx, Ry and Rz after 10 trials was determined to approach approximately 0.2 mm in translation and less than 1 degree in rotation, with a standard deviation of 0.15 mm and 0.7 mm, respectively. The treatment outcome from a single Invisalign-treated bicuspid extraction case was also evaluated tooth-by-tooth in x, y, z, Rx, Ry and Rz dimensions. Using the palate, as a stable reference seemed to work well and the evaluation of the single case showed that many, but not all, of the planned movements occurred.

  19. Expert Consensus Survey on Digital Health Tools for Patients With Serious Mental Illness: Optimizing for User Characteristics and User Support.

    Science.gov (United States)

    Hatch, Ainslie; Hoffman, Julia E; Ross, Ruth; Docherty, John P

    2018-06-12

    Digital technology is increasingly being used to enhance health care in various areas of medicine. In the area of serious mental illness, it is important to understand the special characteristics of target users that may influence motivation and competence to use digital health tools, as well as the resources and training necessary for these patients to facilitate the use of this technology. The aim of this study was to conduct a quantitative expert consensus survey to identify key characteristics of target users (patients and health care professionals), barriers and facilitators for appropriate use, and resources needed to optimize the use of digital health tools in patients with serious mental illness. A panel of 40 experts in digital behavioral health who met the participation criteria completed a 19-question survey, rating predefined responses on a 9-point Likert scale. Consensus was determined using a chi-square test of score distributions across three ranges (1-3, 4-6, 7-9). Categorical ratings of first, second, or third line were designated based on the lowest category into which the CI of the mean ratings fell, with a boundary >6.5 for first line. Here, we report experts' responses to nine questions (265 options) that focused on (1) user characteristics that would promote or hinder the use of digital health tools, (2) potential benefits or motivators and barriers or unintended consequences of digital health tool use, and (3) support and training for patients and health care professionals. Among patient characteristics most likely to promote use of digital health tools, experts endorsed interest in using state-of-the-art technology, availability of necessary resources, good occupational functioning, and perception of the tool as beneficial. Certain disease-associated signs and symptoms (eg, more severe symptoms, substance abuse problems, and a chaotic living situation) were considered likely to make it difficult for patients to use digital health tools

  20. Exploring TechQuests Through Open Source and Tools That Inspire Digital Natives

    Science.gov (United States)

    Hayden, K.; Ouyang, Y.; Kilb, D.; Taylor, N.; Krey, B.

    2008-12-01

    "There is little doubt that K-12 students need to understand and appreciate the Earth on which they live. They can achieve this understanding only if their teachers are well prepared". Dan Barstow, Director of Center for Earth and Space Science Education at TERC. The approach of San Diego County's Cyberinfrastructure Training, Education, Advancement, and Mentoring (SD Cyber-TEAM) project is to build understandings of Earth systems for middle school teachers and students through a collaborative that has engaged the scientific community in the use of cyber-based tools and environments for learning. The SD Cyber-TEAM has used Moodle, an open source management system with social networking tools, that engage digital native students and their teachers in collaboration and sharing of ideas and research related to Earth science. Teachers participate in on-line professional dialog through chat, wikis, blogs, forums, journals and other tools and choose the tools that will best fit their classroom. The use of Moodle during the Summer Cyber Academy developed a cyber-collaboratory environment where teaching strategies were discussed, supported and actualized by participants. These experiences supported digital immigrants (teachers) in adapting teaching strategies using technologies that are most attractive and familiar to students (digital natives). A new study by the National School Boards Association and Grunwald Associates LLC indicated that "the online behaviors of U.S. teens and 'tweens shows that 96 percent of students with online access use social networking technologies, such as chatting, text messaging, blogging, and visiting online communities such as Facebook, MySpace, and Webkinz". While SD Cyber-TEAM teachers are implementing TechQuests in classrooms they use these social networking elements to capture student interest and address the needs of digital natives. Through the Moodle environment, teachers have explored a variety of learning objects called Tech

  1. Miniaturized multiwavelength digital holography sensor for extensive in-machine tool measurement

    Science.gov (United States)

    Seyler, Tobias; Fratz, Markus; Beckmann, Tobias; Bertz, Alexander; Carl, Daniel

    2017-06-01

    In this paper we present a miniaturized digital holographic sensor (HoloCut) for operation inside a machine tool. With state-of-the-art 3D measurement systems, short-range structures such as tool marks cannot be resolved inside a machine tool chamber. Up to now, measurements had to be conducted outside the machine tool and thus processing data are generated offline. The sensor presented here uses digital multiwavelength holography to get 3D-shape-information of the machined sample. By using three wavelengths, we get a large artificial wavelength with a large unambiguous measurement range of 0.5mm and achieve micron repeatability even in the presence of laser speckles on rough surfaces. In addition, a digital refocusing algorithm based on phase noise is implemented to extend the measurement range beyond the limits of the artificial wavelength and geometrical depth-of-focus. With complex wave field propagation, the focus plane can be shifted after the camera images have been taken and a sharp image with extended depth of focus is constructed consequently. With 20mm x 20mm field of view the sensor enables measurement of both macro- and micro-structure (such as tool marks) with an axial resolution of 1 µm, lateral resolution of 7 µm and consequently allows processing data to be generated online which in turn qualifies it as a machine tool control. To make HoloCut compact enough for operation inside a machining center, the beams are arranged in two planes: The beams are split into reference beam and object beam in the bottom plane and combined onto the camera in the top plane later on. Using a mechanical standard interface according to DIN 69893 and having a very compact size of 235mm x 140mm x 215mm (WxHxD) and a weight of 7.5 kg, HoloCut can be easily integrated into different machine tools and extends no more in height than a typical processing tool.

  2. Design of a cam-form tool in precision reuse of a digital paper display

    International Nuclear Information System (INIS)

    Pa, Pai-Shan

    2010-01-01

    A reuse fabrication module that uses micro electroremoving as a precision machining process with a new design of the cam-form tool to remove defective indium-tin-oxide (ITO) thin film from the optical PET surfaces of a digital paper display is presented. A small diameter of the cathode of the cam-form tool corresponds to a higher removal rate for the ITO nanostructure. A small edge radius of the anode and a small gap width between the cathode and the ITO surface takes less time for the same amount of ITO removal. A higher feed rate of the optical PET diaphragm combines with enough electric power to drive fast micro-electroremoving. The high rotational speed of the cam-form tool can improve the effect of dreg discharge and is advantageous to associate with the fast feed rate of the optical PET diaphragm.

  3. Assessing Digital Student Productions, a Design-Based Research Study on the Development of a Criteria-Based Assessment Tool for Students’ Digital Multimodal Productions

    DEFF Research Database (Denmark)

    Hoffmeyer, Mikkeline; Jensen, Jesper Juellund; Olsen, Marie Veisegaard

    2017-01-01

    Digital multimodal production is becoming increasingly important as a 21st century skill and as a learning condition in school (K-12). Moreover, there is a growing attention to the significance of criteria-based assessment for learning. Nevertheless, assessment of students’ digital multimodal...... productions is often vague or lacking. Therefore, the research project aims at developing a tool to support assessment of student’s digital multimodal productions through a design-based research method. This paper presents a proposal for issues to be considered through a prototyping phase, based on interviews...

  4. Bridging the Gap between Actors and Digital tools in a Furnishing Design Process

    DEFF Research Database (Denmark)

    Rasmussen, Mai; Gade, Anne Nørkjær; Jensen, Rasmus Lund

    2017-01-01

    The high level of complexity in today’s building design requires a high level of interdisciplinary collaboration, which historically is an uncommon working method in the building industry. To support the interdisciplinary collaboration, new digital tools such as Building Information Models (BIM......) and Virtual Reality (VR) can be implemented in various phases of the building project. The implementation of BIM is expected to support the designers and improve the collaboration among multiple actors, but the social aspects related to the use of BIM in the design process needs further investigation...

  5. Digitization

    DEFF Research Database (Denmark)

    Finnemann, Niels Ole

    2014-01-01

    what a concept of digital media might add to the understanding of processes of mediatization and what the concept of mediatization might add to the understanding of digital media. It is argued that digital media open an array of new trajectories in human communication, trajectories which were...

  6. USING WIKIS AS A SUPPORT AND ASSESSMENT TOOL IN COLLABORATIVE DIGITAL GAME-BASED LEARNING ENVIRONMENTS

    Directory of Open Access Journals (Sweden)

    Yavuz SAMUR

    2011-04-01

    Full Text Available In computer-supported collaborative learning (CSCL environments, there are many researches done on collaborative learning activities; however, in game-based learning environments, more research and literature on collaborative learning activities are required. Actually, both game-based learning environments and wikis enable us to use new chances for learning, especially in collaborative learning activities. Therefore, in this paper, related literature on wikis and how game & instructional designers can leverage from wikis in game-based learning settings for enhancing students’ collaborative learning activities are examined. Based on the reviewed literature, two main suggestions are given in this paper with their underlying reasons. First, using wikis as a support tool for enhancing collaboration in digital game-based learning (DGBL environments, and second using wikis as an assessment tool in DGBL are suggested.

  7. T-scan III system diagnostic tool for digital occlusal analysis in orthodontics - a modern approach.

    Science.gov (United States)

    Trpevska, Vesna; Kovacevska, Gordana; Benedeti, Alberto; Jordanov, Bozidar

    2014-01-01

    This systematic literature review was performed to establish the mechanism, methodology, characteristics, clinical application and opportunities of the T-Scan III System as a diagnostic tool for digital occlusal analysis in different fields of dentistry, precisely in orthodontics. Searching of electronic databases, using MEDLINE and PubMed, hand searching of relevant key journals, and screening of reference lists of included studies with no language restriction was performed. Publications providing statistically examined data were included for systematic review. Twenty potentially relevant Randomized Controlled Trials (RCTs) were identified. Only ten met the inclusion criteria. The literature demonstrates that using digital occlusal analysis with T-Scan III System in orthodontics has significant advantage with regard to the capability of measuring occlusal parameters in static positions and during dynamic of the mandible. Within the scope of this systematic review, there is evidence to support that T-Scan system is rapid and accurate in identifying the distribution of the tooth contacts and it shows great promise as a clinical diagnostic screening device for occlusion and for improving the occlusion after various dental treatments. Additional clinical studies are required to advance the indication filed of this system. Importance of using digital occlusal T-Scan analysis in orthodontics deserves further investigation.

  8. A Comparison of Radiographic Film Densitometry Using a New Computerized Tool with a Digital Densitometer

    Directory of Open Access Journals (Sweden)

    Hoorieh Bashizadeh Fakhar

    2016-11-01

    Full Text Available Objectives: The purpose of this study was to develop and test a new tool for radiographic densitometry by combining periapical films and aluminum step wedge.Materials and Methods: We reviewed 50 Kodak E-speed intraoral films. An aluminum step wedge consisting of 16 steps was constructed. Each step was 1mmx3mx10mm. The step wedge was exposed to varying exposure times, ranging from 0.05 second to 0.5 second, increasing in 0.05 second increments. Films were digitalized after processing and the MATLAB software algorithm was ran subsequently. Density of the films was measured again using a digital densitometer. In order to compare the two imaging techniques, three steps were selected. Output data from the MATLAB algorithm were compared with data obtained from the digital densitometer.Results: The new method could detect significant differences between subsequent exposure times in step 7, while the densitometer did that in steps 7 and 12. The new method’s sensitivity in determining density changes was 5.26%, 84.1% and 93.02% in steps 2, 7, and 12 respectively.Conclusions: Our new method has an acceptable sensitivity for determining density changes of at least 7 mmEq/Al.Keywords: Densitometry; Image Processing, Computer-Assisted; Aluminum; Phantoms, Imaging

  9. OSS4EVA: Using Open-Source Tools to Fulfill Digital Preservation Requirements

    Directory of Open Access Journals (Sweden)

    Heidi Dowding

    2016-10-01

    Full Text Available This paper builds on the findings of a workshop held at the 2015 International Conference on Digital Preservation (iPRES, entitled, “Using Open-Source Tools to Fulfill Digital Preservation Requirements” (OSS4PRES hereafter. This day-long workshop brought together participants from across the library and archives community, including practitioners, proprietary vendors, and representatives from open-source projects. The resulting conversations were surprisingly revealing: while OSS’ significance within the preservation landscape was made clear, participants noted that there are a number of roadblocks that discourage or altogether prevent its use in many organizations. Overcoming these challenges will be necessary to further widespread, sustainable OSS adoption within the digital preservation community. This article will mine the rich discussions that took place at OSS4PRES to (1 summarize the workshop’s key themes and major points of debate, (2 provide a comprehensive analysis of the opportunities, gaps, and challenges that using OSS entails at a philosophical, institutional, and individual level, and (3 offer a tangible set of recommendations for future work designed to broaden community engagement and enhance the sustainability of open source initiatives, drawing on both participants’ experience as well as additional research.

  10. Intratibial injection of human multiple myeloma cells in NOD/SCID IL-2Rγ(null mice mimics human myeloma and serves as a valuable tool for the development of anticancer strategies.

    Directory of Open Access Journals (Sweden)

    Julia Schueler

    Full Text Available BACKGROUND: We systematically analyzed multiple myeloma (MM cell lines and patient bone marrow cells for their engraftment capacity in immunodeficient mice and validated the response of the resulting xenografts to antimyeloma agents. DESIGN AND METHODS: Using flow cytometry and near infrared fluorescence in-vivo-imaging, growth kinetics of MM cell lines L363 and RPMI8226 and patient bone marrow cells were investigated with use of a murine subcutaneous bone implant, intratibial and intravenous approach in NOD/SCID, NOD/SCID treated with CD122 antibody and NOD/SCID IL-2Rγ(null mice (NSG. RESULTS: Myeloma growth was significantly increased in the absence of natural killer cell activity (NSG or αCD122-treated NOD/SCID. Comparison of NSG and αCD122-treated NOD/SCID revealed enhanced growth kinetics in the former, especially with respect to metastatic tumor sites which were exclusively observed therein. In NSG, MM cells were more tumorigenic when injected intratibially than intravenously. In NOD/SCID in contrast, the use of juvenile long bone implants was superior to intratibial or intravenous cancer cell injection. Using the intratibial NSG model, mice developed typical disease symptoms exclusively when implanted with human MM cell lines or patient-derived bone marrow cells, but not with healthy bone marrow cells nor in mock-injected animals. Bortezomib and dexamethasone delayed myeloma progression in L363- as well as patient-derived MM cell bearing NSG. Antitumor activity could be quantified via flow cytometry and in vivo imaging analyses. CONCLUSIONS: Our results suggest that the intratibial NSG MM model mimics the clinical situation of the disseminated disease and serves as a valuable tool in the development of novel anticancer strategies.

  11. A combination of troponin T and 12-lead electrocardiography: a valuable tool for early prediction of long-term mortality in patients with chest pain without ST-segment elevation.

    Science.gov (United States)

    Jernberg, Tomas; Lindahl, Bertil

    2002-11-01

    Electrocardiography (ECG) obtained on admission and a troponin T (tn-T) level measured early after admission are simple and accessible methods for predicting outcome in patients with suspected unstable angina or myocardial infarction without persistent ST-elevations. However, there are few studies about the combination of these 2 methods as a means of predicting long-term outcome. ECG was obtained on admission, and a tn-T level was analyzed on admission and after 6 hours in 710 consecutive patients admitted because of chest pain and no ST-elevations. Patients were observed for a median time of 40 months for death. ST-segment depressions > or =0.05 mV were present in 266 patients (37%). These patients had a 9.7-fold increased risk of death, compared with patients with normal ECG results. Isolated T-Wave inversions or pathological signs other than ST-T changes were present in 196 patients (28%), who had a 4.5-fold increased risk of death compared with patients who had normal ECG results. At 6 hours after admission, 169 patients (24%) had at least 1 sample of tn-T > or =0.10 microg/L, which resulted in an 3.7-fold increased risk of death. In a multivariate analysis, both ECG on admission and tn-T level came out as independent predictors of outcome. When these methods were combined, patients could be divided into low- (tn-T level or =0.10 microg/L or ST-segment depression), and high-risk groups (tn-T level > or =0.10 microg/L and ST-segment depression). ECG and tn-T level are valuable tools to quickly risk stratify patients with chest pain. The combination of these methods is superior to either one alone.

  12. The Personal Digital Library (PDL)-based e-learning: Using the PDL as an e-learning support tool

    Science.gov (United States)

    Deng, Xiaozhao; Ruan, Jianhai

    The paper describes a support tool for learners engaged in e-learning, the Personal Digital Library (PDL). The characteristics and functionality of the PDL are presented. Suggested steps for constructing and managing a PDL are outlined and discussed briefly. The authors believe that the PDL as a support tool of e-learning will be important and essential in the future.

  13. Quantifying the Personal Creative Experience: Evaluation of Digital Creativity Support Tools Using Self-Report and Physiological Responses

    Science.gov (United States)

    Carroll, Erin Ashley

    2013-01-01

    Creativity is understood intuitively, but it is not easily defined and therefore difficult to measure. This makes it challenging to evaluate the ability of a digital tool to support the creative process. When evaluating creativity support tools (CSTs), it is critical to look beyond traditional time, error, and other productivity measurements that…

  14. The effectiveness of annotated (vs. non-annotated) digital pathology slides as a teaching tool during dermatology and pathology residencies.

    Science.gov (United States)

    Marsch, Amanda F; Espiritu, Baltazar; Groth, John; Hutchens, Kelli A

    2014-06-01

    With today's technology, paraffin-embedded, hematoxylin & eosin-stained pathology slides can be scanned to generate high quality virtual slides. Using proprietary software, digital images can also be annotated with arrows, circles and boxes to highlight certain diagnostic features. Previous studies assessing digital microscopy as a teaching tool did not involve the annotation of digital images. The objective of this study was to compare the effectiveness of annotated digital pathology slides versus non-annotated digital pathology slides as a teaching tool during dermatology and pathology residencies. A study group composed of 31 dermatology and pathology residents was asked to complete an online pre-quiz consisting of 20 multiple choice style questions, each associated with a static digital pathology image. After completion, participants were given access to an online tutorial composed of digitally annotated pathology slides and subsequently asked to complete a post-quiz. A control group of 12 residents completed a non-annotated version of the tutorial. Nearly all participants in the study group improved their quiz score, with an average improvement of 17%, versus only 3% (P = 0.005) in the control group. These results support the notion that annotated digital pathology slides are superior to non-annotated slides for the purpose of resident education. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  15. A Combinational Digital Logic Design Tool for Practice and Assessment in Engineering Education

    Directory of Open Access Journals (Sweden)

    Rasha Morsi

    2016-08-01

    Full Text Available As technology advances, computers are being used almost everywhere. In a 2013 US Census report (File and Ryan, 2014, 83.8% (up from 78.9% in 2012 of U.S. households reported owning a computer with 74.4% reporting internet use (73.4% high speed internet. In recent years, the shift in educational technologies has been moving towards gaming, more specifically serious gaming. Although this is an important trend, there is still much to be said about e-learning through a step-by-step interactive process using an online practice tool. This paper presents a detailed description of the Combinational Logic Design Tool (CLDT (Morsi and Russell (2007. CLDT was designed and developed under the CCLI project, #0737242, funded by the National Science Foundation, which aimed to develop and disseminate a novel online practice tool for on demand review and assessment in Electrical and Computer Engineering education. The paper also reports on a formal assessment conducted in a Digital Logic Design Classroom and presents the results of this assessment.

  16. Recovering valuable shale oils, etc

    Energy Technology Data Exchange (ETDEWEB)

    Engler, C

    1922-09-26

    A process is described for the recovery of valuable shale oils or tars, characterized in that the oil shale is heated to about 300/sup 0/C or a temperature not exceeding this essentially and then is treated with a solvent with utilization of this heat.

  17. New tools for digital medical image processing implemented in DIP software

    International Nuclear Information System (INIS)

    Araujo, Erica A.C.; Santana, Ivan E.; Lima, Fernando R.A.; Viera, Jose W.

    2011-01-01

    The anthropomorphic models used in computational dosimetry, also called phantoms, are mostly built from stacks of images CT (Computed Tomography) or MRI (Magnetic Resonance Imaging) obtained from scans of patients or volunteers. The construction of voxel phantoms requires computational processing for transforming image formats, dimensional image compression (2D) to form three-dimensional arrays (3D), quantization, resampling, enhancement, restoration and image segmentation, among others. Hardly the computational dosimetry researcher finds all these skills into a single software and often it results in a decreased development of their research or inadequate use of alternative tools. The need to integrate the various tasks of the original digital image processing to obtain an image that can be used in a computational model of exposure led to the development of software DIP (Digital Image Processing). This software reads, writes and edits binary files containing the 3D matrix corresponding to a stack of cross-sectional images of a given geometry that can be a human body or other volume of interest. It can also read any type of computer image and do conversions. When the task involves only one output image, it is saved in the JPEG standard Windows. When it involves a stack of images, the binary output file is called SGI (Interactive Graphic Simulations, a symbol already used in other publications of the Research Group in Numerical Dosimetry). The following paper presents the third version of the DIP software and emphasizes the new tools it implemented. Currently it has the menus Basics, Views, Spatial Domain, Frequency Domain, Segmentations and Study. Each menu contains items and subitems with features that generally require an image as input and produce an image or an attribute in the output. (author)

  18. Reproducing the internal and external anatomy of fossil bones: Two new automatic digital tools.

    Science.gov (United States)

    Profico, Antonio; Schlager, Stefan; Valoriani, Veronica; Buzi, Costantino; Melchionna, Marina; Veneziano, Alessio; Raia, Pasquale; Moggi-Cecchi, Jacopo; Manzi, Giorgio

    2018-04-21

    We present two new automatic tools, developed under the R environment, to reproduce the internal and external structures of bony elements. The first method, Computer-Aided Laser Scanner Emulator (CA-LSE), provides the reconstruction of the external portions of a 3D mesh by simulating the action of a laser scanner. The second method, Automatic Segmentation Tool for 3D objects (AST-3D), performs the digital reconstruction of anatomical cavities. We present the application of CA-LSE and AST-3D methods to different anatomical remains, highly variable in terms of shape, size and structure: a modern human skull, a malleus bone, and a Neanderthal deciduous tooth. Both methods are developed in the R environment and embedded in the packages "Arothron" and "Morpho," where both the codes and the data are fully available. The application of CA-LSE and AST-3D allows the isolation and manipulation of the internal and external components of the 3D virtual representation of complex bony elements. In particular, we present the output of the four case studies: a complete modern human endocast and the right maxillary sinus, the dental pulp of the Neanderthal tooth and the inner network of blood vessels of the malleus. Both methods demonstrated to be much faster, cheaper, and more accurate than other conventional approaches. The tools we presented are available as add-ons in existing software within the R platform. Because of ease of application, and unrestrained availability of the methods proposed, these tools can be widely used by paleoanthropologists, paleontologists and anatomists. © 2018 Wiley Periodicals, Inc.

  19. Visualising the Guild Chapel, Stratford-upon-Avon: digital models as research tools in buildings archaeology

    Directory of Open Access Journals (Sweden)

    Kate Giles

    2012-07-01

    Full Text Available This article disseminates the results of a programme of detailed archaeological survey and archive research on one of Europe's most important surviving late-medieval Guild Chapels — that of the Holy Cross Guild, Stratford-upon-Avon (Warwickshire. Today the building is part of Stratford-upon-Avon's tourist trail, located directly opposite William Shakespeare's home, 'New Place', and visited by thousands of tourists every year. However, its archaeological and historical significance has been overlooked owing to the extensive restoration of the building in the 19th and 20th centuries. This destroyed evidence for an internationally significant scheme of wall paintings within the Chapel, paid for by the London Mayor and Stratford-upon-Avon merchant, Hugh Clopton, an important member of the Holy Cross Guild and the original builder of 'New Place'. The paintings also have an important connection with Stratford-upon-Avon's most famous son, William Shakespeare, whose father may have been involved in their destruction and removal during the 16th century. Research by a team of historical archaeologists and digital heritage specialists at the Department of Archaeology, University of York, has revealed the significance of the Guild Chapel through the creation of a digital model and textual paradata, which form the focus of this article. The project is ground-breaking in that it moves beyond the traditional use of digital models as virtual reconstructions of past buildings to use the model itself as a research tool through which the user can explore and validate the evidence for the scheme directly. This is achieved through the creation of a palimpsest of antiquarian drawings of the paintings, made as they were revealed during restoration works in the 19th and 20th centuries, and set within their 3-dimensional architectural context. The model allows the user to compare and contrast differences in the recording methods, iconographies and interpretations of

  20. The effectiveness of digital microscopy as a teaching tool in medical laboratory science curriculum.

    Science.gov (United States)

    Castillo, Demetra

    2012-01-01

    A fundamental component to the practice of Medical Laboratory Science (MLS) is the microscope. While traditional microscopy (TM) is gold standard, the high cost of maintenance has led to an increased demand for alternative methods, such as digital microscopy (DM). Slides embedded with blood specimens are converted into a digital form that can be run with computer driven software. The aim of this study was to investigate the effectiveness of digital microscopy as a teaching tool in the field of Medical Laboratory Science. Participants reviewed known study slides using both traditional and digital microscopy methods and were assessed using both methods. Participants were randomly divided into two groups. Group 1 performed TM as the primary method and DM as the alternate. Group 2 performed DM as the primary and TM as the alternate. Participants performed differentials with their primary method, were assessed with both methods, and then performed differentials with their alternate method. A detailed assessment rubric was created to determine the accuracy of student responses through comparison of clinical laboratory and instructor results. Student scores were reflected as a percentage correct from these methods. This assessment was done over two different classes. When comparing results between methods for each, independent of the primary method used, results were not statistically different. However, when comparing methods between groups, Group 1 (n = 11) (TM = 73.79% +/- 9.19, DM = 81.43% +/- 8.30; paired t10 = 0.182, p < 0.001) showed a significant difference from Group 2 (n = 14) (TM = 85.64% +/- 5.30, DM = 85.91% +/- 7.62; paired t13 = 3.647, p = 0.860). In the subsequent class, results between both groups (n = 13, n = 16, respectively) did not show any significant difference between groups (Group 1 TM = 86.38% +/- 8.17, Group 1 DM = 88.69% +/- 3.86; paired t12 = 1.253, p = 0.234; Group 2 TM = 86.75% +/- 5.37, Group 2 DM = 86.25% +/- 7.01, paired t15 = 0.280, p

  1. DIGITAL

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

  2. Digital administrative maps – A tool for visualization of epidemiological data

    Directory of Open Access Journals (Sweden)

    Ewa Niewiadomska

    2013-08-01

    Full Text Available Background: The aim of the study is to present the methods for visualization of epidemiological data using digital contour maps that take into account administrative division of Poland. Materials and Methods: The possibility of epidemiological data visualization in a geographical order, limited to the administrative level of the country, voivodeships and poviats (counties, are presented. They are crucial for the process of identifying and undertaking adequate prophylactic activities directed towards decreasing the risk and improving the population's health. This paper presents tools and techniques available in Geographic Information System ArcGIS and statistical software package R. Results: The work includes our own data reflecting: 1 the values of specific mortality rates due to respiratory diseases, Poland, 2010, based on the Central Statistical Office data, using the R statistical software package; 2 the averaged registered incidence rates of sarcoidosis in 2006-2010 for the population aged 19+ in the Silesian voivodeship, using Geographic Information System ArcGIS; and 3 the number of children with diagnosed respiratory diseases in the city of Legnica in 2009, taking into account their place of residence, using layered maps in Geographic Information System ArcGIS. Conclusions: The tools presented and described in this paper make it possible to visualize the results of research, to increase attractiveness of courses for students, as well as to enhance the skills and competence of students and participants of courses. Med Pr 2013;64(4:533–539

  3. Generation of a Skeleton Corpus of Digital Objects for the Validation and Evaluation of Format Identification Tools and Signatures

    Directory of Open Access Journals (Sweden)

    Ross Spencer

    2013-06-01

    Full Text Available To preserve digital information it is vital that the format of that information can be identified, in-perpetuity. This is the major focus of research within the field of Digital Preservation. The National Archives of the UK called for the Digital Preservation and Digital Curation communities to develop a test corpus of digital objects to help further develop tools to aid this purpose. Following that call, an attempt has been made to develop the suite.This paper initially outlines a methodology to generate a skeleton corpus using simple user-generated digital objects. It then explores the lessons learnt in the generation of a corpus using scripting language techniques from the file format signatures described in The National Archives PRONOM technical registry. It will also discuss the use of the digital signature for this purpose, the benefits of developing a test corpus using this technique. Finally, this paper will outline a methodology for future research before exploring how the community can best make use of the output of this project and how this project needs to be taken forward to completion.

  4. Preparing valuable hydrocarbons by hydrogenation

    Energy Technology Data Exchange (ETDEWEB)

    Pier, M

    1930-08-22

    A process is described for the preparation of valuable hydrocarbons by treatment of carbonaceous materials, like coal, tars, minerals oils, and their distillation and conversion products, and for refining of liquid hydrocarbon mixture obtained at raised temperature and under pressure, preferably in the presence of catalysts, by the use of hydrogen-containing gases, purified and obtained by distilling solid combustibles, characterized by the purification of the hydrogen-containing gases being accomplished for the purpose of practically complete removal of the oxygen by heating at ordinary or higher pressure in the presence of a catalyst containing silver and oxides of metals of group VI of the periodic system.

  5. Energy threat to valuable land

    International Nuclear Information System (INIS)

    Caufield, C.

    1982-01-01

    Having considered the varying estimates of future UK energy requirements which have been made, the impact on the environment arising from the use of valuable sites for energy production is examined. It is shown that energy installations of all kinds clash with areas of natural beauty or ecological importance. As an example, a recent investigation of potential sites for nuclear power stations found that most of them were on or next to sites of special scientific interest, and other areas officially designated to be regarded as special or to be protected in some way. (U.K.)

  6. Assessment in the Digital Age: An Overview of Online Tools and Considerations for School Psychologists and School Counsellors

    Science.gov (United States)

    Jellins, Laura

    2015-01-01

    With recent developments in technology, online tests and digital tools offer school psychologists and school counsellors alternate modes of assessment. These new technologies have the potential to increase accessibility to tests (through greater portability), allow school psychologists and school counsellors to service more students (through…

  7. Exploring the Divides among Students, Educators, and Practitioners in the Use of Digital Media as a Pedagogical Tool

    Science.gov (United States)

    Duffy, Katherine; Ney, Jillian

    2015-01-01

    Digital technologies pervade the higher education landscape as a way to build student engagement and enhance student learning and teaching. In practice, however, the ways in which these tools are implemented in marketing education appear to be ad hoc, rather than using a systematic approach to build engagement and provide students with the skill…

  8. Patients setup verification tool for RT (PSVTs): DRR, simulation, portal and digital images

    International Nuclear Information System (INIS)

    Lee, Suk; Seong, Jin Sil; Chu, Sung Sil; Lee, Chang Geol; Suh, Chang Ok; Kwon, Soo Il

    2003-01-01

    To develop a patients' setup verification tool (PSVT) to verify the alignment of the machine and the target isocenters, and the reproducibility of patients' setup for three dimensional conformal radiotherapy (3DCRT) and intensity modulated radiotherapy (MRT). The utilization of this system is evaluated through phantom and patient case studies. We developed and clinically tested a new method for patients' setup verification, using digitally reconstructed radiography (DRR), simulation, portal and digital images. The PSVT system was networked to a Pentium PC for the transmission of the acquired images to the PC for analysis. To verify the alignment of the machine and target isocenters, orthogonal pairs of simulation images were used as verification images. Errors in the isocenter alignment were measured by comparing the verification images with DRR of CT images. Orthogonal films were taken of all the patients once a week. These verification films were compared with the DRR were used for the treatment setup. By performing this procedure every treatment, using humanoid phantom and patient cases, the errors of localization can be analyzed, with adjustments made from the translation. The reproducibility of the patients' setup was verified using portal and digital images. The PSVT system was developed to verify the alignment of the machine and the target isocenters, and the reproducibility of the patients' setup for 3DCRT and IMRT The results show that the localization errors are 0.8±0.2 mm (AP) and 1.0±0.3 mm (Lateral) in the cases relating to the brain and 1.1± 0.5 mm (AP) and 1.0±0.6 mm (Lateral) in the cases relating to the pelvis. The reproducibility of the patients' setup was verified by visualization, using real-time image acquisition, leading to the practical utilization of our software. A PSVT system was developed for the verification of the alignment between machine and the target isocenters, and the reproducibility of the patients' setup in 3DCRT and IMRT

  9. Open source tools for management and archiving of digital microscopy data to allow integration with patient pathology and treatment information.

    Science.gov (United States)

    Khushi, Matloob; Edwards, Georgina; de Marcos, Diego Alonso; Carpenter, Jane E; Graham, J Dinny; Clarke, Christine L

    2013-02-12

    Virtual microscopy includes digitisation of histology slides and the use of computer technologies for complex investigation of diseases such as cancer. However, automated image analysis, or website publishing of such digital images, is hampered by their large file sizes. We have developed two Java based open source tools: Snapshot Creator and NDPI-Splitter. Snapshot Creator converts a portion of a large digital slide into a desired quality JPEG image. The image is linked to the patient's clinical and treatment information in a customised open source cancer data management software (Caisis) in use at the Australian Breast Cancer Tissue Bank (ABCTB) and then published on the ABCTB website (http://www.abctb.org.au) using Deep Zoom open source technology. Using the ABCTB online search engine, digital images can be searched by defining various criteria such as cancer type, or biomarkers expressed. NDPI-Splitter splits a large image file into smaller sections of TIFF images so that they can be easily analysed by image analysis software such as Metamorph or Matlab. NDPI-Splitter also has the capacity to filter out empty images. Snapshot Creator and NDPI-Splitter are novel open source Java tools. They convert digital slides into files of smaller size for further processing. In conjunction with other open source tools such as Deep Zoom and Caisis, this suite of tools is used for the management and archiving of digital microscopy images, enabling digitised images to be explored and zoomed online. Our online image repository also has the capacity to be used as a teaching resource. These tools also enable large files to be sectioned for image analysis. The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/5330903258483934.

  10. Open source tools for management and archiving of digital microscopy data to allow integration with patient pathology and treatment information

    Directory of Open Access Journals (Sweden)

    Khushi Matloob

    2013-02-01

    Full Text Available Abstract Background Virtual microscopy includes digitisation of histology slides and the use of computer technologies for complex investigation of diseases such as cancer. However, automated image analysis, or website publishing of such digital images, is hampered by their large file sizes. Results We have developed two Java based open source tools: Snapshot Creator and NDPI-Splitter. Snapshot Creator converts a portion of a large digital slide into a desired quality JPEG image. The image is linked to the patient’s clinical and treatment information in a customised open source cancer data management software (Caisis in use at the Australian Breast Cancer Tissue Bank (ABCTB and then published on the ABCTB website (http://www.abctb.org.au using Deep Zoom open source technology. Using the ABCTB online search engine, digital images can be searched by defining various criteria such as cancer type, or biomarkers expressed. NDPI-Splitter splits a large image file into smaller sections of TIFF images so that they can be easily analysed by image analysis software such as Metamorph or Matlab. NDPI-Splitter also has the capacity to filter out empty images. Conclusions Snapshot Creator and NDPI-Splitter are novel open source Java tools. They convert digital slides into files of smaller size for further processing. In conjunction with other open source tools such as Deep Zoom and Caisis, this suite of tools is used for the management and archiving of digital microscopy images, enabling digitised images to be explored and zoomed online. Our online image repository also has the capacity to be used as a teaching resource. These tools also enable large files to be sectioned for image analysis. Virtual Slides The virtual slide(s for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/5330903258483934

  11. Digital Storytelling: A Tool for Identifying and Developing Cultural Competence with Preservice Teachers in an Introduction to Middle Level Education Course

    Science.gov (United States)

    Ruppert, Nancy; Adcock, Lee T.; Crave, Jared

    2017-01-01

    Using five themes associated with a diversity intensive undergraduate course, preservice teachers in an upper level introduction to middle grade course described their knowledge of cultural competence using digital storytelling as the tool. Findings suggest digital storytelling provides a tool to explore and describe how cultural competence is…

  12. Digital forensic technologies as e-fraud risk mitigation tools in the banking industry: Evidence from Zimbabwe

    Directory of Open Access Journals (Sweden)

    Shewangu Dzomira

    2014-07-01

    Full Text Available The paper investigates digital analytical tools and technologies used in electronic fraud prevention and detection, used in the banking industry. The paper is based on a descriptive study which studied digital forensics and cyber fraud phenomenon using content analysis. To obtain the data questionnaires and interviews were administered to the selected informants from 22 banks. Convenience and judgemental sampling techniques were used. It was found out that fraud detection and prevention tools and technologies would be most effective way of combating e-fraud if they can be utilized. It is concluded that banking institutions should reshape their anti-fraud strategies to be effective by considering fraud detection efforts using advanced analytics and related tools, software and application to get more efficient oversight

  13. Is Google Trends a reliable tool for digital epidemiology? Insights from different clinical settings.

    Science.gov (United States)

    Cervellin, Gianfranco; Comelli, Ivan; Lippi, Giuseppe

    2017-09-01

    Internet-derived information has been recently recognized as a valuable tool for epidemiological investigation. Google Trends, a Google Inc. portal, generates data on geographical and temporal patterns according to specified keywords. The aim of this study was to compare the reliability of Google Trends in different clinical settings, for both common diseases with lower media coverage, and for less common diseases attracting major media coverage. We carried out a search in Google Trends using the keywords "renal colic", "epistaxis", and "mushroom poisoning", selected on the basis of available and reliable epidemiological data. Besides this search, we carried out a second search for three clinical conditions (i.e., "meningitis", "Legionella Pneumophila pneumonia", and "Ebola fever"), which recently received major focus by the Italian media. In our analysis, no correlation was found between data captured from Google Trends and epidemiology of renal colics, epistaxis and mushroom poisoning. Only when searching for the term "mushroom" alone the Google Trends search generated a seasonal pattern which almost overlaps with the epidemiological profile, but this was probably mostly due to searches for harvesting and cooking rather than to for poisoning. The Google Trends data also failed to reflect the geographical and temporary patterns of disease for meningitis, Legionella Pneumophila pneumonia and Ebola fever. The results of our study confirm that Google Trends has modest reliability for defining the epidemiology of relatively common diseases with minor media coverage, or relatively rare diseases with higher audience. Overall, Google Trends seems to be more influenced by the media clamor than by true epidemiological burden. Copyright © 2017 Ministry of Health, Saudi Arabia. Published by Elsevier Ltd. All rights reserved.

  14. Estimating pediatric entrance skin dose from digital radiography examination using DICOM metadata: A quality assurance tool

    Energy Technology Data Exchange (ETDEWEB)

    Brady, S. L., E-mail: samuel.brady@stjude.org; Kaufman, R. A., E-mail: robert.kaufman@stjude.org [Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105 (United States)

    2015-05-15

    Purpose: To develop an automated methodology to estimate patient examination dose in digital radiography (DR) imaging using DICOM metadata as a quality assurance (QA) tool. Methods: Patient examination and demographical information were gathered from metadata analysis of DICOM header data. The x-ray system radiation output (i.e., air KERMA) was characterized for all filter combinations used for patient examinations. Average patient thicknesses were measured for head, chest, abdomen, knees, and hands using volumetric images from CT. Backscatter factors (BSFs) were calculated from examination kVp. Patient entrance skin air KERMA (ESAK) was calculated by (1) looking up examination technique factors taken from DICOM header metadata (i.e., kVp and mA s) to derive an air KERMA (k{sub air}) value based on an x-ray characteristic radiation output curve; (2) scaling k{sub air} with a BSF value; and (3) correcting k{sub air} for patient thickness. Finally, patient entrance skin dose (ESD) was calculated by multiplying a mass–energy attenuation coefficient ratio by ESAK. Patient ESD calculations were computed for common DR examinations at our institution: dual view chest, anteroposterior (AP) abdomen, lateral (LAT) skull, dual view knee, and bone age (left hand only) examinations. Results: ESD was calculated for a total of 3794 patients; mean age was 11 ± 8 yr (range: 2 months to 55 yr). The mean ESD range was 0.19–0.42 mGy for dual view chest, 0.28–1.2 mGy for AP abdomen, 0.18–0.65 mGy for LAT view skull, 0.15–0.63 mGy for dual view knee, and 0.10–0.12 mGy for bone age (left hand) examinations. Conclusions: A methodology combining DICOM header metadata and basic x-ray tube characterization curves was demonstrated. In a regulatory era where patient dose reporting has become increasingly in demand, this methodology will allow a knowledgeable user the means to establish an automatable dose reporting program for DR and perform patient dose related QA testing for

  15. MVT a most valuable theorem

    CERN Document Server

    Smorynski, Craig

    2017-01-01

    This book is about the rise and supposed fall of the mean value theorem. It discusses the evolution of the theorem and the concepts behind it, how the theorem relates to other fundamental results in calculus, and modern re-evaluations of its role in the standard calculus course. The mean value theorem is one of the central results of calculus. It was called “the fundamental theorem of the differential calculus” because of its power to provide simple and rigorous proofs of basic results encountered in a first-year course in calculus. In mathematical terms, the book is a thorough treatment of this theorem and some related results in the field; in historical terms, it is not a history of calculus or mathematics, but a case study in both. MVT: A Most Valuable Theorem is aimed at those who teach calculus, especially those setting out to do so for the first time. It is also accessible to anyone who has finished the first semester of the standard course in the subject and will be of interest to undergraduate mat...

  16. Architectures/Algorithms/Tools for Ultra-Low Power, Compact EVA Digital Radio, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — The EVA digital radio imposes tight constraints on power consumption, latency, throughput, form factor, reconfigurability, single event upset and fault tolerance,...

  17. The Use of the Digital Smile Design Concept as an Auxiliary Tool in Aesthetic Rehabilitation: A Case Report.

    Science.gov (United States)

    Zanardi, Piero Rocha; Laia Rocha Zanardi, Raquel; Chaib Stegun, Roberto; Sesma, Newton; Costa, Bru-No; Cruz Laganá, Dalva

    2016-01-01

    The digital smile design is a practical diagnosis method that can assist the clinician to visualize and measure dentogingival discrepancies. This clinical report aims to present the associated steps, from the diagnosis of the alterations diagnosis through to the final aesthetic result. A 37-years-old female patient presented as her main complaint the tooth form and colour discrepancies. Applying the digital smile design principle, the necessary measures for a harmonic smile correction could be accurately determined. The initial diagnosis led to a wax up of the master cast that was duplicated in acrylic resin directly in the mouth. This temporary restoration guided the periodontal surgery and the final pressed ceramic crown restoration. We conclude that the digital smile design concept seems to be a useful tool to achieve a satisfactory aesthetic result.

  18. Digital Aquifer - Integrating modeling, technical, software and policy aspects to develop a groundwater management tool

    Science.gov (United States)

    Tirupathi, S.; McKenna, S. A.; Fleming, K.; Wambua, M.; Waweru, P.; Ondula, E.

    2016-12-01

    Groundwater management has traditionally been observed as a study for long term policy measures to ensure that the water resource is sustainable. IBM Research, in association with the World Bank, extended this traditional analysis to include realtime groundwater management by building a context-aware, water rights management and permitting system. As part of this effort, one of the primary objectives was to develop a groundwater flow model that can help the policy makers with a visual overview of the current groundwater distribution. In addition, the system helps the policy makers simulate a range of scenarios and check the sustainability of the groundwater resource in a given region. The system also enables a license provider to check the effect of the introduction of a new well on the existing wells in the domain as well as the groundwater resource in general. This process simplifies how an engineer will determine if a new well should be approved. Distance to the nearest well neighbors and the maximum decreases in water levels of nearby wells are continually assessed and presented as evidence for an engineer to make the final judgment on approving the permit. The system also facilitates updated insights on the amount of groundwater left in an area and provides advice on how water fees should be structured to balance conservation and economic development goals. In this talk, we will discuss the concept of Digital Aquifer, the challenges in integrating modeling, technical and software aspects to develop a management system that helps policy makers and license providers with a robust decision making tool. We will concentrate on the groundwater model developed using the analytic element method that plays a very important role in the decision making aspects. Finally, the efficiency of this system and methodology is shown through a case study in Laguna Province, Philippines, which was done in collaboration with the National Water Resource Board, Philippines and World

  19. Digital Stories: A 21st-Century Communication Tool for the English Language Classroom

    Science.gov (United States)

    Brenner, Kathy

    2014-01-01

    Digital storytelling can motivate and engage students and create a community in the classroom. This article lays out a 12-week digital storytelling project, describing the process in detail, including assessment, and pinpointing issues and challenges as well as benefits the project affords English language students.

  20. The Virtual Naval Hospital: the digital library as knowledge management tool for nomadic patrons.

    Science.gov (United States)

    D'Alessandro, Michael P; D'Alessandro, Donna M; Bakalar, Richard S; Ashley, Denis E; Hendrix, Mary J C

    2005-01-01

    To meet the information needs of isolated primary care providers and their patients in the US Navy, a digital health sciences library, the Virtual Naval Hospital, was created through a unique partnership between academia and government. The creation of the digital library was heavily influenced by the principles of user-centered design and made allowances for the nomadic nature of the digital library's patrons and the heterogeneous access they have to Internet bandwidth. The result is a digital library that has been in operation since 1997, continues to expand in size, is heavily used, and is highly regarded by its patrons. The digital library is dedicated to delivering the right information at the right time to the right person so the right decision can be made, and therefore the Virtual Naval Hospital functions as a knowledge-management system for the US Navy Bureau of Medicine and Surgery.

  1. Estetoscópio digital como ferramenta inovadora no ensino da ausculta cardíaca Digital stethoscope as an innovative tool on the teaching of auscultatory skills

    Directory of Open Access Journals (Sweden)

    Claudio Tinoco Mesquita

    2013-02-01

    accuracy of clinical examination, however, its impact on the teaching of cardiac auscultation for undergraduate students of medicine is not known. The objective is to demonstrate the usefulness of the digital stethoscope compared to traditional methods as a tool in the teaching of auscultatory skills. nterventional, longitudinal, controlled, unicenter and randomized study. Thirty-eight medicine students were enrolled for a cardiovascular semiology course lasting eight weeks. The course program included lectures and bedside practice in Cardiology wards. In the practical lessons, the students were randomized into two groups: 1 (n = 21 digital stethoscope (Littmann® Model 3200, 3M; and 2 (n = 17 conventional stethoscopes. A pre-training evaluation was conducted through a test using the software Heart Sounds®, which was repeated after the course. The average scores were compared by paired T test and unpaired T test. It is observed that, at the end of the course, there was a significantly greater improvement in the group that used the digital stethoscope (51.9% compared to the group using the conventional stethoscope (29.5%. Short-term interventions for cardiac semiology teaching are able to contribute significantly to improving proficiency in the identification of heart sounds. The use of digital stethoscope proved to be a positive factor in teaching these skills.

  2. Important nonurgent imaging findings: use of a hybrid digital and administrative support tool for facilitating clinician communication.

    Science.gov (United States)

    Johnson, Evan; Sanger, Joseph; Rosenkrantz, Andrew B

    2015-01-01

    A departmental tool that provides a digital/administrative solution for communication of important imaging findings was evaluated. The tool allows the radiologist to click a button to mark an examination for ordering physician follow-up with subsequent fax and confirmation. The tool's log was reviewed. Of 466 entries; 99.4% were successfully faxed with phone confirmation. Most common reasons for usage were lung nodule/mass (29.2%) and osseous fracture (12.4%). Subsequent clinical action was documented in 41.0% of entries. Our data show the reliability of the tool in assisting the communication of findings, as well as providing documentation of notification, with minimal workflow disruption. Copyright © 2015 Elsevier Inc. All rights reserved.

  3. Poster presented at Research Bazaar 2015 - project and digital tools overview

    OpenAIRE

    Strack, Michael

    2015-01-01

    Poster presented at the Research Bazaar 2015 at Melbourne University, Australia. Conference attendees were asked to share an overview of their project and the digital platforms they used in their research.

  4. Defrosting the digital library: bibliographic tools for the next generation web.

    Science.gov (United States)

    Hull, Duncan; Pettifer, Steve R; Kell, Douglas B

    2008-10-01

    Many scientists now manage the bulk of their bibliographic information electronically, thereby organizing their publications and citation material from digital libraries. However, a library has been described as "thought in cold storage," and unfortunately many digital libraries can be cold, impersonal, isolated, and inaccessible places. In this Review, we discuss the current chilly state of digital libraries for the computational biologist, including PubMed, IEEE Xplore, the ACM digital library, ISI Web of Knowledge, Scopus, Citeseer, arXiv, DBLP, and Google Scholar. We illustrate the current process of using these libraries with a typical workflow, and highlight problems with managing data and metadata using URIs. We then examine a range of new applications such as Zotero, Mendeley, Mekentosj Papers, MyNCBI, CiteULike, Connotea, and HubMed that exploit the Web to make these digital libraries more personal, sociable, integrated, and accessible places. We conclude with how these applications may begin to help achieve a digital defrost, and discuss some of the issues that will help or hinder this in terms of making libraries on the Web warmer places in the future, becoming resources that are considerably more useful to both humans and machines.

  5. Defrosting the digital library: bibliographic tools for the next generation web.

    Directory of Open Access Journals (Sweden)

    Duncan Hull

    2008-10-01

    Full Text Available Many scientists now manage the bulk of their bibliographic information electronically, thereby organizing their publications and citation material from digital libraries. However, a library has been described as "thought in cold storage," and unfortunately many digital libraries can be cold, impersonal, isolated, and inaccessible places. In this Review, we discuss the current chilly state of digital libraries for the computational biologist, including PubMed, IEEE Xplore, the ACM digital library, ISI Web of Knowledge, Scopus, Citeseer, arXiv, DBLP, and Google Scholar. We illustrate the current process of using these libraries with a typical workflow, and highlight problems with managing data and metadata using URIs. We then examine a range of new applications such as Zotero, Mendeley, Mekentosj Papers, MyNCBI, CiteULike, Connotea, and HubMed that exploit the Web to make these digital libraries more personal, sociable, integrated, and accessible places. We conclude with how these applications may begin to help achieve a digital defrost, and discuss some of the issues that will help or hinder this in terms of making libraries on the Web warmer places in the future, becoming resources that are considerably more useful to both humans and machines.

  6. Portfolio: a prototype workstation for development and evaluation of tools for analysis and management of digital portal images

    International Nuclear Information System (INIS)

    Boxwala, Aziz A.; Chaney, Edward L.; Fritsch, Daniel S.; Friedman, Charles P.; Rosenman, Julian G.

    1998-01-01

    Purpose: The purpose of this investigation was to design and implement a prototype physician workstation, called PortFolio, as a platform for developing and evaluating, by means of controlled observer studies, user interfaces and interactive tools for analyzing and managing digital portal images. The first observer study was designed to measure physician acceptance of workstation technology, as an alternative to a view box, for inspection and analysis of portal images for detection of treatment setup errors. Methods and Materials: The observer study was conducted in a controlled experimental setting to evaluate physician acceptance of the prototype workstation technology exemplified by PortFolio. PortFolio incorporates a windows user interface, a compact kit of carefully selected image analysis tools, and an object-oriented data base infrastructure. The kit evaluated in the observer study included tools for contrast enhancement, registration, and multimodal image visualization. Acceptance was measured in the context of performing portal image analysis in a structured protocol designed to simulate clinical practice. The acceptability and usage patterns were measured from semistructured questionnaires and logs of user interactions. Results: Radiation oncologists, the subjects for this study, perceived the tools in PortFolio to be acceptable clinical aids. Concerns were expressed regarding user efficiency, particularly with respect to the image registration tools. Conclusions: The results of our observer study indicate that workstation technology is acceptable to radiation oncologists as an alternative to a view box for clinical detection of setup errors from digital portal images. Improvements in implementation, including more tools and a greater degree of automation in the image analysis tasks, are needed to make PortFolio more clinically practical

  7. Co-creation of a digital tool for the empowerment of parents of children with physical disabilities.

    Science.gov (United States)

    Alsem, M W; van Meeteren, K M; Verhoef, M; Schmitz, M J W M; Jongmans, M J; Meily-Visser, J M A; Ketelaar, M

    2017-01-01

    Parents of children with physical disabilities do a lot to support their child in daily life. In doing this they are faced with many challenges. These parents have a wide range of unmet needs, especially for information, on different topics. It is sometimes hard for them to get the right information at the right moment, and to ask the right questions to physicians and other healthcare professionals. In order to develop a digital tool to help parents formulate questions and find information, we thought it would be crucial to work together in a process of co-creation with parents, researchers, IT-specialists and healthcare professionals. In close collaboration with them we developed a tool that aims to help parents ask questions, find information and take a more leading role in consultations with healthcare professionals, called the WWW-roadmap (WWW-wijzer in Dutch).In two groups of parents (one group with and one group without experience of using the tool), we will study the effects of using this tool, on consultations with physicians. We expect that using the tool will result in better empowerment, satisfaction and family-centred care. Parents of children with physical disabilities do much to support their child in daily life. In doing so, they are faced with many challenges. These parents have a wide range of unmet needs, especially for information, on various topics. Getting timely and reliable information is very difficult for parents, whereas being informed is a major requirement for the process of empowerment and shared decision-making. This paper describes the development of a digital tool to support parents in this process. During its development, working together with parents was crucial to address relevant topics and design a user-centred intervention. In co-creation with parents, healthcare professionals, IT-professionals and researchers, a digital tool was developed, the 'WWW-roadmap' ['WWW-wijzer' in Dutch]. This digital tool aims to enable parents to

  8. Spatial recurrence analysis: A sensitive and fast detection tool in digital mammography

    International Nuclear Information System (INIS)

    Prado, T. L.; Galuzio, P. P.; Lopes, S. R.; Viana, R. L.

    2014-01-01

    Efficient diagnostics of breast cancer requires fast digital mammographic image processing. Many breast lesions, both benign and malignant, are barely visible to the untrained eye and requires accurate and reliable methods of image processing. We propose a new method of digital mammographic image analysis that meets both needs. It uses the concept of spatial recurrence as the basis of a spatial recurrence quantification analysis, which is the spatial extension of the well-known time recurrence analysis. The recurrence-based quantifiers are able to evidence breast lesions in a way as good as the best standard image processing methods available, but with a better control over the spurious fragments in the image

  9. Validation of a Novel Digital Tool in Automatic Scoring of an Online ECG Examination at an International Cardiology Meeting.

    Science.gov (United States)

    Quinn, Kieran L; Crystal, Eugene; Lashevsky, Ilan; Arouny, Banafsheh; Baranchuk, Adrian

    2016-07-01

    We have previously developed a novel digital tool capable of automatically recognizing correct electrocardiography (ECG) diagnoses in an online exam and demonstrated a significant improvement in diagnostic accuracy when utilizing an inductive-deductive reasoning strategy over a pattern recognition strategy. In this study, we sought to validate these findings from participants at the International Winter Arrhythmia School meeting, one of the foremost electrophysiology events in Canada. Preregistration to the event was sent by e-mail. The exam was administered on day 1 of the conference. Results and analysis were presented the following morning to participants. Twenty-five attendees completed the exam, providing a total of 500 responses to be marked. The online tool accurately identified 195 of a total of 395 (49%) correct responses (49%). In total, 305 responses required secondary manual review, of which 200 were added to the correct responses pool. The overall accuracy of correct ECG diagnosis for all participants was 69% and 84% when using pattern recognition or inductive-deductive strategies, respectively. Utilization of a novel digital tool to evaluate ECG competency can be set up as a workshop at international meetings or educational events. Results can be presented during the sessions to ensure immediate feedback. © 2015 Wiley Periodicals, Inc.

  10. ForestCrowns: a software tool for analyzing ground-based digital photographs of forest canopies

    Science.gov (United States)

    Matthew F. Winn; Sang-Mook Lee; Phillip A. Araman

    2013-01-01

    Canopy coverage is a key variable used to characterize forest structure. In addition, the light transmitted through the canopy is an important ecological indicator of plant and animal habitat and understory climate conditions. A common ground-based method used to document canopy coverage is to take digital photographs from below the canopy. To assist with analyzing...

  11. ForestCrowns: a transparency estimation tool for digital photographs of forest canopies

    Science.gov (United States)

    Matthew Winn; Jeff Palmer; S.-M. Lee; Philip Araman

    2016-01-01

    ForestCrowns is a Windows®-based computer program that calculates forest canopy transparency (light transmittance) using ground-based digital photographs taken with standard or hemispherical camera lenses. The software can be used by forest managers and researchers to monitor growth/decline of forest canopies; provide input for leaf area index estimation; measure light...

  12. IDRC and Fundación Capital launch digital tool to empower ...

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

    2017-08-22

    Aug 22, 2017 ... “This can also help the Colombian government in their work to effectively ... regions in Colombia by working with the government, the private sector, and ... professional orientation, life planning, and coaching; and use digital solutions ... High-speed Internet access, or broadband, can effectively contribute to ...

  13. Ultraprecise parabolic interpolator for numerically controlled machine tools. [Digital differential analyzer circuit

    Energy Technology Data Exchange (ETDEWEB)

    Davenport, C. M.

    1977-02-01

    The mathematical basis for an ultraprecise digital differential analyzer circuit for use as a parabolic interpolator on numerically controlled machines has been established, and scaling and other error-reduction techniques have been developed. An exact computer model is included, along with typical results showing tracking to within an accuracy of one part per million.

  14. Organisational Learning as an Emerging Process: The Generative Role of Digital Tools in Informal Learning Practices

    Science.gov (United States)

    Za, Stefano; Spagnoletti, Paolo; North-Samardzic, Andrea

    2014-01-01

    Increasing attention is paid to organisational learning, with the success of contemporary organisations strongly contingent on their ability to learn and grow. Importantly, informal learning is argued to be even more significant than formal learning initiatives. Given the widespread use of digital technologies in the workplace, what requires…

  15. Determining the Accessibility of K-12 Digital Materials: Tools for Educators

    Science.gov (United States)

    Smith, Sean J.; Stahl, William

    2016-01-01

    This article explores the manner in which teachers and district leaders can further determine whether or not the digital materials they are considering are accessible for all learners--particularly those with disabilities--and appropriate to the accommodations and modifications provided in the brick-and-mortar school environment. The article…

  16. Digital aerial sketchmapping and downlink communications: a new tool for fire managers

    Science.gov (United States)

    Everett Hinkley; Tom Zajkowski; Charlie Schrader-Patton

    2010-01-01

    Aerial sketchmapping is the geolocating of features that are seen on the ground below an aircraft and the subsequent recording of those features. Traditional aerial sketchmapping methods required hand-sketching on hardcopy maps or photos and the translation of that information to a digital file. In 1996, the U.S. Department of Agriculture (USDA) Forest Service embarked...

  17. Learning Tools for Knowledge Nomads: Using Personal Digital Assistants (PDAs) in Web-based Learning Environments.

    Science.gov (United States)

    Loh, Christian Sebastian

    2001-01-01

    Examines how mobile computers, or personal digital assistants (PDAs), can be used in a Web-based learning environment. Topics include wireless networks on college campuses; online learning; Web-based learning technologies; synchronous and asynchronous communication via the Web; content resources; Web connections; and collaborative learning. (LRW)

  18. Digital Literacy in the Medical Curriculum: A Course With Social Media Tools and Gamification.

    Science.gov (United States)

    Mesko, Bertalan; Győrffy, Zsuzsanna; Kollár, János

    2015-10-01

    The profession of practicing medicine is based on communication, and as social media and other digital technologies play a major role in today's communication, digital literacy must be included in the medical curriculum. The value of social media has been demonstrated several times in medicine and health care, therefore it is time to prepare medical students for the conditions they will have to face when they graduate. The aim of our study was to design a new e-learning-based curriculum and test it with medical students. An elective course was designed to teach students how to use the Internet, with a special emphasis on social media. An e-learning platform was also made available and students could access material about using digital technologies on the online platforms they utilized the most. All students filled in online surveys before and after the course in order to provide feedback about the curriculum. Over a 3-year period, 932 students completed the course. The course did not increase the number of hours spent online but aimed at making that time more efficient and useful. Based on the responses of students, they found the information provided by the curriculum useful for their studies and future practices. A well-designed course, improved by constant evaluation-based feedback, can be suitable for preparing students for the massive use of the Internet, social media platforms, and digital technologies. New approaches must be applied in modern medical education in order to teach students new skills. Such curriculums that put emphasis on reaching students on the online channels they use in their studies and everyday lives introduce them to the world of empowered patients and prepare them to deal with the digital world.

  19. The Potential of Digital Tools in Art Lessons at Junior School Level to Improve Artistic Ability Using Tamazight Fonts

    OpenAIRE

    Aber Salem Aboalgasm; Rupert Ward

    2014-01-01

    The aim of this research is to explore how pupils in art classes can use creative digital art tools to redesign Tamazight fonts, in order to develop children’s artistic creativity, enable them to learn about a new culture, and to help the teacher assess the creativity of pupils in the art class. It can also help students to improve their talents in drawing. The study could relate to research in Libya among the Amazigh people (better known as Berber) and possibly the development of Tamazight f...

  20. Virtual reality and interactive digital game technology: new tools to address obesity and diabetes.

    Science.gov (United States)

    Skip Rizzo, Albert; Lange, Belinda; Suma, Evan A; Bolas, Mark

    2011-03-01

    The convergence of the exponential advances in virtual reality (VR)-enabling technologies with a growing body of clinical research and experience has fueled the evolution of the discipline of clinical VR. This article begins with a brief overview of methods for producing and delivering VR environments that can be accessed by users for a range of clinical health conditions. Interactive digital games and new forms of natural movement-based interface devices are also discussed in the context of the emerging area of exergaming, along with some of the early results from studies of energy expenditure during the use of these systems. While these results suggest that playing currently available active exergames uses significantly more energy than sedentary activities and is equivalent to a brisk walk, these activities do not reach the level of intensity that would match playing the actual sport, nor do they deliver the recommended daily amount of exercise for children. However, these results provide some support for the use of digital exergames using the current state of technology as a complement to, rather than a replacement, for regular exercise. This may change in the future as new advances in novel full-body interaction systems for providing vigorous interaction with digital games are expected to drive the creation of engaging, low-cost interactive game-based applications designed to increase exercise participation in persons at risk for obesity. © 2011 Diabetes Technology Society.

  1. Virtual Reality and Interactive Digital Game Technology: New Tools to Address Obesity and Diabetes

    Science.gov (United States)

    “Skip” Rizzo, Albert; Lange, Belinda; Suma, Evan A; Bolas, Mark

    2011-01-01

    The convergence of the exponential advances in virtual reality (VR)-enabling technologies with a growing body of clinical research and experience has fueled the evolution of the discipline of clinical VR. This article begins with a brief overview of methods for producing and delivering VR environments that can be accessed by users for a range of clinical health conditions. Interactive digital games and new forms of natural movement-based interface devices are also discussed in the context of the emerging area of exergaming, along with some of the early results from studies of energy expenditure during the use of these systems. While these results suggest that playing currently available active exergames uses significantly more energy than sedentary activities and is equivalent to a brisk walk, these activities do not reach the level of intensity that would match playing the actual sport, nor do they deliver the recommended daily amount of exercise for children. However, these results provide some support for the use of digital exergames using the current state of technology as a complement to, rather than a replacement, for regular exercise. This may change in the future as new advances in novel full-body interaction systems for providing vigorous interaction with digital games are expected to drive the creation of engaging, low-cost interactive game-based applications designed to increase exercise participation in persons at risk for obesity. PMID:21527091

  2. A Critical Study of Effect of Web-Based Software Tools in Finding and Sharing Digital Resources--A Literature Review

    Science.gov (United States)

    Baig, Muntajeeb Ali

    2010-01-01

    The purpose of this paper is to review the effect of web-based software tools for finding and sharing digital resources. A positive correlation between learning and studying through online tools has been found in recent researches. In traditional classroom, searching resources are limited to the library and sharing of resources is limited to the…

  3. A tool for validating MRI-guided strategies: a digital breathing CT/MRI phantom of the abdominal site.

    Science.gov (United States)

    Paganelli, Chiara; Summers, Paul; Gianoli, Chiara; Bellomi, Massimo; Baroni, Guido; Riboldi, Marco

    2017-11-01

    Dynamic magnetic resonance imaging (MRI) is emerging as the elected image modality for organ motion quantification and management in image-guided radiotherapy. However, the lack of validation tools is an open issue for image guidance in the abdominal and thoracic organs affected by organ motion due to respiration. We therefore present an abdominal four-dimensional (4D) CT/MRI digital phantom, including the estimation of MR tissue parameters, simulation of dedicated abdominal MR sequences, modeling of radiofrequency coil response and noise, followed by k-space sampling and image reconstruction. The phantom allows the realistic simulation of images generated by MR pulse sequences with control of scan and tissue parameters, combined with co-registered CT images. In order to demonstrate the potential of the phantom in a clinical scenario, we describe the validation of a virtual T1-weighted 4D MRI strategy. Specifically, the motion extracted from a T2-weighted 4D MRI is used to warp a T1-weighted breath-hold acquisition, with the aim of overcoming trade-offs that limit T1-weighted acquisitions. Such an application shows the applicability of the digital CT/MRI phantom as a validation tool, which should be especially useful for cases unsuited to obtain real imaging data.

  4. Evaluation of a Digital Consultation and Self-Care Advice Tool in Primary Care: A Multi-Methods Study

    Directory of Open Access Journals (Sweden)

    Julie Cowie

    2018-05-01

    Full Text Available Digital services are often regarded as a solution to the growing demands on primary care services. Provision of a tool offering advice to support self-management as well as the ability to digitally consult with a General Practitioner (GP has the potential to alleviate some of the pressure on primary care. This paper reports on a Phase II, 6-month evaluation of eConsult, a web-based triage and consultation system that was piloted across 11 GP practices across Scotland. Through a multi-method approach the evaluation explored eConsult use across practices, exposing both barriers and facilitators to its adoption. Findings suggest that expectations that eConsult would offer an additional and alternative method of accessing GP services were largely met. However, there is less certainty that it has fulfilled expectations of promoting self-help. In addition, low uptake meant that evaluation of current effectiveness was difficult for practices to quantify. The presence of an eConsult champion(s within the practice was seen to be a significant factor in ensuring successful integration of the tool. A lack of patient and staff engagement, insufficient support and lack of protocols around processes were seen as barriers to its success.

  5. A malaria diagnostic tool based on computer vision screening and visualization of Plasmodium falciparum candidate areas in digitized blood smears.

    Directory of Open Access Journals (Sweden)

    Nina Linder

    Full Text Available INTRODUCTION: Microscopy is the gold standard for diagnosis of malaria, however, manual evaluation of blood films is highly dependent on skilled personnel in a time-consuming, error-prone and repetitive process. In this study we propose a method using computer vision detection and visualization of only the diagnostically most relevant sample regions in digitized blood smears. METHODS: Giemsa-stained thin blood films with P. falciparum ring-stage trophozoites (n = 27 and uninfected controls (n = 20 were digitally scanned with an oil immersion objective (0.1 µm/pixel to capture approximately 50,000 erythrocytes per sample. Parasite candidate regions were identified based on color and object size, followed by extraction of image features (local binary patterns, local contrast and Scale-invariant feature transform descriptors used as input to a support vector machine classifier. The classifier was trained on digital slides from ten patients and validated on six samples. RESULTS: The diagnostic accuracy was tested on 31 samples (19 infected and 12 controls. From each digitized area of a blood smear, a panel with the 128 most probable parasite candidate regions was generated. Two expert microscopists were asked to visually inspect the panel on a tablet computer and to judge whether the patient was infected with P. falciparum. The method achieved a diagnostic sensitivity and specificity of 95% and 100% as well as 90% and 100% for the two readers respectively using the diagnostic tool. Parasitemia was separately calculated by the automated system and the correlation coefficient between manual and automated parasitemia counts was 0.97. CONCLUSION: We developed a decision support system for detecting malaria parasites using a computer vision algorithm combined with visualization of sample areas with the highest probability of malaria infection. The system provides a novel method for blood smear screening with a significantly reduced need for

  6. Development and assessment of a digital X-ray software tool to determine vertebral rotation in adolescent idiopathic scoliosis.

    Science.gov (United States)

    Eijgenraam, Susanne M; Boselie, Toon F M; Sieben, Judith M; Bastiaenen, Caroline H G; Willems, Paul C; Arts, Jacobus J; Lataster, Arno

    2017-02-01

    The amount of vertebral rotation in the axial plane is of key importance in the prognosis and treatment of adolescent idiopathic scoliosis (AIS). Current methods to determine vertebral rotation are either designed for use in analogue plain radiographs and not useful in digital images, or lack measurement precision and are therefore less suitable for the follow-up of rotation in AIS patients. This study aimed to develop a digital X-ray software tool with high measurement precision to determine vertebral rotation in AIS, and to assess its (concurrent) validity and reliability. In this study a combination of basic science and reliability methodology applied in both laboratory and clinical settings was used. Software was developed using the algorithm of the Perdriolle torsion meter for analogue AP plain radiographs of the spine. Software was then assessed for (1) concurrent validity and (2) intra- and interobserver reliability. Plain radiographs of both human cadaver vertebrae and outpatient AIS patients were used. Concurrent validity was measured by two independent observers, both experienced in the assessment of plain radiographs. Reliability-measurements were performed by three independent spine surgeons. Pearson correlation of the software compared with the analogue Perdriolle torsion meter for mid-thoracic vertebrae was 0.98, for low-thoracic vertebrae 0.97 and for lumbar vertebrae 0.97. Measurement exactness of the software was within 5° in 62% of cases and within 10° in 97% of cases. Intraclass correlation coefficient (ICC) for inter-observer reliability was 0.92 (0.91-0.95), ICC for intra-observer reliability was 0.96 (0.94-0.97). We developed a digital X-ray software tool to determine vertebral rotation in AIS with a substantial concurrent validity and reliability, which may be useful for the follow-up of vertebral rotation in AIS patients. Copyright © 2015 Elsevier Inc. All rights reserved.

  7. High pleural fluid adenosine deaminase levels: A valuable tool for ...

    African Journals Online (AJOL)

    To determine the positive predictive value (PPV) of FADA, the frequent causes of FPs in our laboratory and the demographic characteristics of tuberculous pleural effusions (TPEs) and non-tuberculous pleural effusions (NTPEs). Methods. High FADA results generated in the past year were extracted with corresponding TB ...

  8. Social Media: Valuable Tools in Today’s Operational Environment

    Science.gov (United States)

    2011-05-04

    Lee Odden, ―Best and Worst Practices Social Media Marketing,‖ Top Rank® Online Market Blog, entry posted 12 February 2009, http://www.toprankblog.com...1001 (accessed 30 March 2011). Odden, Lee. ―Best and Worst Practices Social Media Marketing.‖ Top Rank® Online Market Blog, entry posted 12

  9. Digital Technologies as Tools of Engagement and Dissent from the Perspective of Nonprofit Sector

    Institute of Scientific and Technical Information of China (English)

    LIN Ziying

    2017-01-01

    The widely spread of the digital technologies, such as laptop and the Internet, have brought out profound changes in the economy as wel as in political and social life and intensified the interactions and communication between the state, civil society, and market. For the time being, it offered opportunities for the nonprofit sector to initiate a brand-new stage. This article aims to explore how the technology connects nonprofit sector to government and civil society and assess the impact of technology in nonprofit sector perspective by taking The Red Cross of Society of China as an example.

  10. Review of Beyond Illustration: 2D and 3D Digital Tools for Discovery in Archaeology [Book

    Directory of Open Access Journals (Sweden)

    Melissa Terras

    2010-06-01

    Full Text Available The creation of images has been an activity since the beginning of human society: our early ancestors painted or carved rocks with depictions of their lifestyles and beliefs. Rocks are not very portable, however, and humans like to share their visualisations and the knowledge contained within them. Much investment in technology has focused on the ability to create, replicate and disseminate visual information, from early print materials to attempts at chemical photography and recently, the development of ever more complex computational methods to represent visual information in a variety of ways. Visualisations are an important means of communication, a source of information and a focus of both social interaction and scholarly activity. Images and visualisations play an important role in cultural and social history, can contain valuable historical information and are used more and more in academic research that aims to study culture in its widest sense: focussing on artefacts and cultural produce.

  11. A digital subtraction radiography based tool for periodontal bone resorption analysis

    Energy Technology Data Exchange (ETDEWEB)

    Schiabel, Homero; Rodrigues, Eveline B., E-mail: homero@sc.usp.br [University of Sao Paulo (EESC/USP), Sao Carlos, SP (Brazil). Dept. of Electrical Engineering; Rubira-Bullen, Izabel R.F. [University of Sao Paulo (USP), Bauru, SP (Brazil). Bauru Dentistry School

    2011-07-01

    The aim of this paper was to describe an aided diagnosis scheme for periodontal bone resorption so that the dentist can make an early diagnosis of the periodontal disease and establish the best treatment plan to increase the success of healing. Three ways of displaying the results are provided: qualitative, simple quantitative and colored-percentage quantitative views. A total of 72 pairs of in vitro radiographic images were used. The main procedure registers the images perspective projection aimed to align them in rotation and translation, and is followed by the application of a contrast correction technique. The results from the subtraction were evaluated firstly by the comparison between the actual and the digital sizes corresponding to the holes made by drills in phantoms. The mean error was 4.2%. The method was also applied to actual tooth radiographic images and could detect clearly the effect of treatment of periodontal diseases. It is dependent on the reproducibility of the process of radiographs acquisition and digitization, but the calculated mean error allows to conclude its better efficacy compared to usual procedures in this field. (author)

  12. A digital subtraction radiography based tool for periodontal bone resorption analysis

    International Nuclear Information System (INIS)

    Schiabel, Homero; Rodrigues, Eveline B.; Rubira-Bullen, Izabel R.F.

    2011-01-01

    The aim of this paper was to describe an aided diagnosis scheme for periodontal bone resorption so that the dentist can make an early diagnosis of the periodontal disease and establish the best treatment plan to increase the success of healing. Three ways of displaying the results are provided: qualitative, simple quantitative and colored-percentage quantitative views. A total of 72 pairs of in vitro radiographic images were used. The main procedure registers the images perspective projection aimed to align them in rotation and translation, and is followed by the application of a contrast correction technique. The results from the subtraction were evaluated firstly by the comparison between the actual and the digital sizes corresponding to the holes made by drills in phantoms. The mean error was 4.2%. The method was also applied to actual tooth radiographic images and could detect clearly the effect of treatment of periodontal diseases. It is dependent on the reproducibility of the process of radiographs acquisition and digitization, but the calculated mean error allows to conclude its better efficacy compared to usual procedures in this field. (author)

  13. Digital capillaroscopy as important tool for early diagnostics of arterial hypertension

    Science.gov (United States)

    Gurfinkel, Yu. I.; Sasonko, M. L.; Priezzhev, A. V.

    2015-03-01

    The study is aimed to determine the digital capillaroscopy possibilities in early diagnostics of an arterial hypertension. A total of 123 adult persons were examined in the study. The first group consisted of 40 patients with prehypertension (BP 130-139/85-89 mm Hg). The second group included 36 patients with 1-2 stage of hypertension (mean systolic BP 152.7±12 mm Hg). Patients in both groups did not receive regular drug therapy. The group of volunteers (n=47) included healthy adults without signs of cardiovascular pathology. The capillary circulation was examined on the nailbed using the optical digital capillaroscope developed by the company "AET", Russia. Diameters of the arterial and venous segments, perivascular zone size, capillary blood velocity, the degree of arterial loops narrowing and the density of the capillary network were estimated. In patients with arterial hypertension and even in patients with prehypertension remodeling and rarefaction of capillaries and the expressed narrowing their arterial loops were manifested. The results of the study revealed the presence of abnormalities of microcirculation parameters in patients of both groups. The capillaries density in both groups of patients was significantly lower than in healthy persons. The significant narrowing of arterial loops was revealed in patients with both arterial hypertension and prehypertension, in comparison with healthy volunteers. Capillary blood velocity did not differ significantly between healthy volunteers group and the group of prehypertensive patients. However in patients with hypertension this parameter was significantly lower in comparison with control group.

  14. Dermoscopy, Digital Dermoscopy and Other Diagnostic Tools in the Early Detection of Melanoma and Follow-up of High-risk Skin Cancer Patients.

    Science.gov (United States)

    Thomas, Luc; Puig, Susana

    2017-07-05

    Early detection is a key strategy for reducing the mortality and economic burden associated with melanoma. Dermoscopy is a non-invasive and cost-effective tool for melanoma diagnosis, which has been shown to be a reliable and sensitive method for detecting early-stage skin cancer and reducing the number of unnecessary excisions. Patients at high risk of developing melanoma require long-term surveillance. Use of digital dermoscopy follow-up of these patients has led to improved outcomes. Combined follow-up programmes using total-body photography and digital dermoscopy have led to further improvements in early diagnosis and diagnostic accuracy. Dermoscopy is now widely used by dermatologists, but the public health impact of this tool is yet to be evaluated. Despite the clear advantages of dermoscopy and digital follow-up meth-ods, dermoscopy training and access to digital dermoscopy among dermatologists and general practitioners needs to be improved.

  15. Understanding the Role of Medical Experts during a Public Health Crisis Digital Tools and Library Resources for Research on the 1918 Spanish Influenza.

    Science.gov (United States)

    Ewing, E Thomas; Gad, Samah; Ramakrishnan, Naren; Reznick, Jeffrey S

    2014-10-01

    Humanities scholars, particularly historians of health and disease, can benefit from digitized library collections and tools such as topic modeling. Using a case study from the 1918 Spanish Flu epidemic, this paper explores the application of a big humanities approach to understanding the impact of a public health official on the course of the disease and the response of the public, as documented through digitized newspapers and medical periodicals.

  16. Volunteering in the Digital Age: A Study of Online Collaboration Tools from the Perspective of CSCL

    Science.gov (United States)

    Kok, Ayse

    2011-01-01

    There is little evidence that helps to inform education, practice, policy, and research about issues surrounding the use of online collaboration tools for organisational initiatives (Brown & Duguid, 1991; Cook & Brown, 1999); let alone a single study conducted with regard to the volunteering practice of knowledge workers. The underlying…

  17. Digital soil mapping as a tool for quantifying state-and-transition models

    Science.gov (United States)

    Ecological sites and associated state-and-transition models (STMs) are rapidly becoming important land management tools in rangeland systems in the US and around the world. Descriptions of states and transitions are largely developed from expert knowledge and generally accepted species and community...

  18. a design to digitalize hydraulic cylinder control of a machine tool

    African Journals Online (AJOL)

    Dr Obe

    1995-09-01

    Sep 1, 1995 ... Department of Mechanical Engineering. FEDERAL UNIVERSITY OF TECHNOLOGY, OWERRI,. P.M.B. 1526, OWERRI. ABSTRACT. Conventionally hydraulic piston - cylinder servos are actuated using analogue controls for machine tool axis drives. In this paper a design of the axis control system of an NC ...

  19. IDRC and Fundación Capital launch digital tool to empower ...

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

    ... and Web platform for virtual learning, the tool supports financial and life planning ... confront the issues young people are dealing with in this new era of peace.” ... l'accès à Internet haute vitesse – aussi appelé services à large bande – peut ...

  20. Project GRACE A grid based search tool for the global digital library

    CERN Document Server

    Scholze, Frank; Vigen, Jens; Prazak, Petra; The Seventh International Conference on Electronic Theses and Dissertations

    2004-01-01

    The paper will report on the progress of an ongoing EU project called GRACE - Grid Search and Categorization Engine (http://www.grace-ist.org). The project participants are CERN, Sheffield Hallam University, Stockholm University, Stuttgart University, GL 2006 and Telecom Italia. The project started in 2002 and will finish in 2005, resulting in a Grid based search engine that will search across a variety of content sources including a number of electronic thesis and dissertation repositories. The Open Archives Initiative (OAI) is expanding and is clearly an interesting movement for a community advocating open access to ETD. However, the OAI approach alone may not be sufficiently scalable to achieve a truly global ETD Digital Library. Many universities simply offer their collections to the world via their local web services without being part of any federated system for archiving and even those dissertations that are provided with OAI compliant metadata will not necessarily be picked up by a centralized OAI Ser...

  1. Micro patterned surfaces: an effective tool for long term digital holographic microscopy cell imaging

    Science.gov (United States)

    Mues, Sarah; Lilge, Inga; Schönherr, Holger; Kemper, Björn; Schnekenburger, Jürgen

    2017-02-01

    The major problem of Digital Holographic Microscopy (DHM) long term live cell imaging is that over time most of the tracked cells move out of the image area and other ones move in. Therefore, most of the cells are lost for the evaluation of individual cellular processes. Here, we present an effective solution for this crucial problem of long-term microscopic live cell analysis. We have generated functionalized slides containing areas of 250 μm per 200 μm. These micropatterned biointerfaces consist of passivating polyaclrylamide brushes (PAAm). Inner areas are backfilled with octadecanthiol (ODT), which allows cell attachment. The fouling properties of these surfaces are highly controllable and therefore the defined areas designed for the size our microscopic image areas were effective in keeping all cells inside the rectangles over the selected imaging period.

  2. Rapid Prototyping — A Tool for Presenting 3-Dimensional Digital Models Produced by Terrestrial Laser Scanning

    Directory of Open Access Journals (Sweden)

    Juho-Pekka Virtanen

    2014-07-01

    Full Text Available Rapid prototyping has received considerable interest with the introduction of affordable rapid prototyping machines. These machines can be used to manufacture physical models from three-dimensional digital mesh models. In this paper, we compare the results obtained with a new, affordable, rapid prototyping machine, and a traditional professional machine. Two separate data sets are used for this, both of which were acquired using terrestrial laser scanning. Both of the machines were able to produce complex and highly detailed geometries in plastic material from models based on terrestrial laser scanning. The dimensional accuracies and detail levels of the machines were comparable, and the physical artifacts caused by the fused deposition modeling (FDM technique used in the rapid prototyping machines could be found in both models. The accuracy of terrestrial laser scanning exceeded the requirements for manufacturing physical models of large statues and building segments at a 1:40 scale.

  3. 3D photography is a reliable burn wound area assessment tool compared to digital planimetry in very young children.

    Science.gov (United States)

    Gee Kee, E L; Kimble, R M; Stockton, K A

    2015-09-01

    Reliability and validity of 3D photography (3D LifeViz™ System) compared to digital planimetry (Visitrak™) has been established in a compliant cohort of children with acute burns. Further research is required to investigate these assessment tools in children representative of the general pediatric burns population, specifically children under the age of three years. To determine if 3D photography is a reliable wound assessment tool compared to Visitrak™ in children of all ages with acute burns ≤10% TBSA. Ninety-six children (median age 1 year 9 months) who presented to the Royal Children's Hospital Brisbane with an acute burn ≤10% TBSA were recruited into the study. Wounds were measured at the first dressing change using the Visitrak™ system and 3D photography. All measurements were completed by one investigator and level of agreement between wound surface area measurements was calculated. Wound surface area measurements were complete (i.e. participants had measurements from both techniques) for 75 participants. Level of agreement between wound surface area measurements calculated using an intra-class correlation coefficient (ICC) was excellent (ICC 0.96, 95% CI 0.93, 0.97). Visitrak™ tracings could not be completed in 19 participants with 16 aged less than two years. 3D photography could not be completed for one participant. Barriers to completing tracings were: excessive movement, pain, young age or wound location (e.g. face or perineum). This study has confirmed 3D photography as a reliable alternative to digital planimetry in children of all ages with acute burns ≤10% TBSA. In addition, 3D photography is more suitable for very young children given its non-invasive nature. Copyright © 2015 Elsevier Ltd and ISBI. All rights reserved.

  4. Digital Elevation Profile: A Complex Tool for the Spatial Analysis of Hiking

    Directory of Open Access Journals (Sweden)

    Laura TÎRLĂ

    2014-11-01

    Full Text Available One of the current attributions of mountain geomorphology is to provide information for tourism purposes, such as the spatial analysis of hiking trails. Therefore, geomorphic tools are indispensable for terrain analyses. Elevation profile is one of the most adequate tools for assessing the morphometric patterns of the hiking trails. In this study we tested several applications in order to manage raw data, create profile graphs and obtain the morphometric parameters of five hiking trails in the Căpățânii Mountains (South Carpathians, Romania. Different data complexity was explored: distance, elevation, cumulative gain or loss, slope etc. Furthermore, a comparative morphometric analysis was performed in order to emphasize the multiple possibilities provided by the elevation profile. Results show that GPS Visualizer, Geocontext and in some manner Google Earth are the most adequate applications that provide high-quality elevation profiles and detailed data, with multiple additional functions, according to user's needs. The applied tools and techniques are very useful for mountain route planning, elaborating mountain guides, enhancing knowledge about specific trails or routes, or assessing the landscape and tourism value of a mountain area.

  5. Digital Tools for Documenting and Conserving Bahrain's Built Heritage for Posterity

    Science.gov (United States)

    Mezzino, D.; Barazzetti, L.; Santana Quintero, M.; El-Habashi, A.

    2017-08-01

    Documenting the physical characteristics of historic structures is the first step for any preventive maintenance, monitoring, conservation, planning and promotion action. Metric documentation supports informative decision-making process for property owners, site managers, public officials, and conservators. This information serves also a broader purpose, over time, it becomes the primary means by which scholars, heritage professionals, and the general public understand a site that radically changed or disappeared. Further, documentation supports monitoring as well as the character-defining elements analysis, relevant to define the values of the building for the local and international community. The awareness of these concepts oriented the digital documentation and training activities, developed between 2016 and 2017, for the Bahrain Authority for Culture and Antiquities (BACA) in Bahrain. The developed activities had two main aims: a) support the local staff in using specific recording techniques to efficiently document and consequently preserve built heritage sites with appropriate accuracy and in a relatively short period; b) develop a pilot project in collaboration with BACA to validate the capacity of the team to accurately document and produce measured records for the conservation and management of Bahrain built heritage. The documentation project has been developed by a multidisciplinary team of experts from BACA, Carleton Immersive Media Studio (CIMS), Carleton University, Canada and a contracted researcher from the Gicarus Lab, Politecnico di Milano (POLIMI) in Italy. In the training activities, the participants have been exposed to a wide range of recording techniques, illustrating them the selection criteria for the most suitable one, according to requirements, site specifications, categories of values identified for the various built elements, and budget. The pilot project has been tested on three historical structures, both with strong connotations in

  6. DIGITAL TOOLS FOR DOCUMENTING AND CONSERVING BAHRAIN’S BUILT HERITAGE FOR POSTERITY

    Directory of Open Access Journals (Sweden)

    D. Mezzino

    2017-08-01

    Full Text Available Documenting the physical characteristics of historic structures is the first step for any preventive maintenance, monitoring, conservation, planning and promotion action. Metric documentation supports informative decision-making process for property owners, site managers, public officials, and conservators. This information serves also a broader purpose, over time, it becomes the primary means by which scholars, heritage professionals, and the general public understand a site that radically changed or disappeared. Further, documentation supports monitoring as well as the character-defining elements analysis, relevant to define the values of the building for the local and international community. The awareness of these concepts oriented the digital documentation and training activities, developed between 2016 and 2017, for the Bahrain Authority for Culture and Antiquities (BACA in Bahrain. The developed activities had two main aims: a support the local staff in using specific recording techniques to efficiently document and consequently preserve built heritage sites with appropriate accuracy and in a relatively short period; b develop a pilot project in collaboration with BACA to validate the capacity of the team to accurately document and produce measured records for the conservation and management of Bahrain built heritage. The documentation project has been developed by a multidisciplinary team of experts from BACA, Carleton Immersive Media Studio (CIMS, Carleton University, Canada and a contracted researcher from the Gicarus Lab, Politecnico di Milano (POLIMI in Italy. In the training activities, the participants have been exposed to a wide range of recording techniques, illustrating them the selection criteria for the most suitable one, according to requirements, site specifications, categories of values identified for the various built elements, and budget. The pilot project has been tested on three historical structures, both with strong

  7. The Value of School Librarian Support in the Digital World

    Science.gov (United States)

    Ballew, Linda M.

    2014-01-01

    The mission of school librarians in the digital age of information gathering and messaging has not undergone any real change of focus. Even though the tools and methods available for accessing information have significantly altered the way people now use library services, school libraries remain a constant place to make valuable discoveries. The…

  8. Prospective, randomized evaluation of a personal digital assistant-based research tool in the emergency department

    Directory of Open Access Journals (Sweden)

    Dinizio Anthony

    2008-01-01

    Full Text Available Abstract Background Personal digital assistants (PDA offer putative advantages over paper for collecting research data. However, there are no data prospectively comparing PDA and paper in the emergency department. The aim of this study was to prospectively compare the performance of PDA and paper enrollment instruments with respect to time required and errors generated. Methods We randomized consecutive patients enrolled in an ongoing prospective study to having their data recorded either on a PDA or a paper data collection instrument. For each method, we recorded the total time required for enrollment, and the time required for manual transcription (paper onto a computer database. We compared data error rates by examining missing data, nonsensical data, and errors made during the transcription of paper forms. Statistical comparisons were performed by Kruskal-Wallis and Poisson regression analyses for time and errors, respectively. Results We enrolled 68 patients (37 PDA, 31 paper. Two of 31 paper forms were not available for analysis. Total data gathering times, inclusive of transcription, were significantly less for PDA (6:13 min per patient compared to paper (9:12 min per patient; p Conclusion Using a PDA-based data collection instrument for clinical research reduces the time required for data gathering and significantly improves data integrity.

  9. e-research: Changes and challenges in the use of digital tools in primary care research

    DEFF Research Database (Denmark)

    Bruun Larsen, Lars; Skonnord, Trygve; Gjelstad, Svein

    in primary care research. Examples of this are online randomisation, electronic questionnaires, automatic email scheduling, mobile phone applications and data extraction tools. The amount of data can be increased to a low cost, and this can help to reach adequate sample sizes. However, there are still...... challenges within the field. To secure a high response rate, you need to follow up manually or use another application. There are also practical and ethical problems, and the data security for sensitive data have to be followed carefully. Session content Oral presentations about some technological...

  10. Digital storytelling as a tool for teaching: Perceptions of pre-service teachers

    Directory of Open Access Journals (Sweden)

    Chantyclaire A. Tiba

    2015-12-01

    Full Text Available It has been shown that teachers are reluctant to use technology despite the South African (SA government’s huge expenditure on technological equipment. This might be the result of teachers being unable to select appropriate technology that will yield positive learning outcomes as well as being ill-equipped to integrate technology into their pedagogy. To this end, pre-service teachers at a University were trained on how to integrate digital storytelling (DST effectively into their teaching. The aim of this study is to gain insight into the potential benefits of DST for teaching and learning and to determine factors that may prevent pre-service teachers’ uptake of DST during in-service practice. This is a qualitative study in which fifty pre-service teachers were divided into five groups for focus group interviews. Data were analysed, and the results show that pre- service teachers perceived DST to be beneficial in the classroom as it has the potential to (i motivate and engage learners, (ii promote voice/self-expression, and (iii promote collaborative learning and acquisition of multiple skills. Pre-service teachers are of the opinion that a lack of resources, self-confidence and time owing to restrictive curricula may prevent uptake of DST during in-service teaching. It was recommended that school stakeholders create a balance between intrinsic and extrinsic factors that will promote the adoption and integration of DST into teaching. Also, the education institution concerned strives to balance all three strands of knowledge: technology, pedagogy and content.

  11. Digital storytelling as a tool for teaching: Perceptions of pre-service teachers

    Directory of Open Access Journals (Sweden)

    A. Tiba

    2015-07-01

    Full Text Available It has been shown that teachers are reluctant to use technology despite the South African (SA government’s huge expenditure on technological equipment. This might be the result of teachers being unable to select appropriate technology that will yield positive learning outcomes as well as being ill-equipped to integrate technology into their pedagogy. To this end, pre-service teachers at a University were trained on how to integrate digital storytelling (DST effectively into their teaching. The aim of this study is to gain insight into the potential benefits of DST for teaching and learning and to determine factors that may prevent pre-service teachers’ uptake of DST during in-service practice. This is a qualitative study in which fifty pre-service teachers were divided into five groups for focus group interviews. Data were analysed, and the results show that pre- service teachers perceived DST to be beneficial in the classroom as it has the potential to (i motivate and engage learners, (ii promote voice/self-expression, and (iii promote collaborative learning and acquisition of multiple skills. Pre-service teachers are of the opinion that a lack of resources, self-confidence and time owing to restrictive curricula may prevent uptake of DST during in-service teaching. It was recommended that school stakeholders create a balance between intrinsic and extrinsic factors that will promote the adoption and integration of DST into teaching. Also, the education institution concerned strives to balance all three strands of knowledge: technology, pedagogy and content.

  12. RESEARCHING AND EVALUATING DIGITAL STORYTELLING AS A DISTANCE EDUCATION TOOL IN PHYSICS INSTRUCTION: AN APPLICATION WITH PRE-SERVICE PHYSICS TEACHERS

    Directory of Open Access Journals (Sweden)

    Nihat KOTLUK

    2016-01-01

    Full Text Available Advances in information and communication technology in 21st century have led to changes in education trends and today new concepts such as computer, multimedia, audio, video, animation and internet have become an indispensable part of life. The storytelling is the one of approach which is allowed to using technology in educational field. The aim of this study is to define the use of digital storytelling in physics instruction as a distance education tool. In this respect, the literature related to digital storytelling was analyzed and for applying it in practice, 13 pre-service teachers from department of physic education were trained on digital storytelling for 6 weeks in spring term of 2013- 2014 academic year. Following the process of instruction, pre-service teachers created and shared digital stories in YouTube and evaluated all of them. Furthermore, opinions of the pre-service teachers were asked on digital story telling As a result of the analysing the DST videos and opinions of pre-service teacher, it is expected that using digital storytelling as distance education tool will be efficacious.

  13. Development Methodology of a Cyber Security Risk Analysis and Assessment Tool for Digital I and C Systems in Nuclear Power Plant

    International Nuclear Information System (INIS)

    Cha, K. H.; Lee, C. K.; Song, J. G.; Lee, Y. J.; Kim, J. Y.; Lee, J. W.; Lee, D. Y.

    2011-01-01

    With the use of digital computers and communication networks the hot issues on cyber security were raised about 10 years ago. The scope of cyber security application has now been extended from the safety Instrumentation and Control (I and C) system to safety important systems, plant security system, and emergency preparedness system. Therefore, cyber security should be assessed and managed systematically throughout the development life cycle of I and C systems in order for their digital assets to be protected from cyber attacks. Fig. 1 shows the concept of a cyber security risk management of digital I and C systems in nuclear power plants (NPPs). A lot of cyber security risk assessment methods, techniques, and supported tools have been developed for Information Technology (IT) systems, but they have not been utilized widely for cyber security risk assessments of the digital I and C systems in NPPs. The main reason is a difference in goals between IT systems and nuclear I and C systems. Confidentiality is important in IT systems, but availability and integrity are important in nuclear I and C systems. Last year, it was started to develop a software tool to be specialized for the development process of nuclear I and C systems. This paper presents a development methodology of the Cyber Security Risk analysis and Assessment Tool (CSRAT) for the digital I and C systems in NPP

  14. Development Methodology of a Cyber Security Risk Analysis and Assessment Tool for Digital I and C Systems in Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Cha, K. H.; Lee, C. K.; Song, J. G.; Lee, Y. J.; Kim, J. Y.; Lee, J. W.; Lee, D. Y. [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2011-05-15

    With the use of digital computers and communication networks the hot issues on cyber security were raised about 10 years ago. The scope of cyber security application has now been extended from the safety Instrumentation and Control (I and C) system to safety important systems, plant security system, and emergency preparedness system. Therefore, cyber security should be assessed and managed systematically throughout the development life cycle of I and C systems in order for their digital assets to be protected from cyber attacks. Fig. 1 shows the concept of a cyber security risk management of digital I and C systems in nuclear power plants (NPPs). A lot of cyber security risk assessment methods, techniques, and supported tools have been developed for Information Technology (IT) systems, but they have not been utilized widely for cyber security risk assessments of the digital I and C systems in NPPs. The main reason is a difference in goals between IT systems and nuclear I and C systems. Confidentiality is important in IT systems, but availability and integrity are important in nuclear I and C systems. Last year, it was started to develop a software tool to be specialized for the development process of nuclear I and C systems. This paper presents a development methodology of the Cyber Security Risk analysis and Assessment Tool (CSRAT) for the digital I and C systems in NPP

  15. Digital Culture and Digital Library

    Directory of Open Access Journals (Sweden)

    Yalçın Yalçınkaya

    2016-12-01

    Full Text Available In this study; digital culture and digital library which have a vital connection with each other are examined together. The content of the research consists of the interaction of culture, information, digital culture, intellectual technologies, and digital library concepts. The study is an entry work to integrity of digital culture and digital library theories and aims to expand the symmetry. The purpose of the study is to emphasize the relation between the digital culture and digital library theories acting intersection of the subjects that are examined. Also the perspective of the study is based on examining the literature and analytical evaluation in both studies (digital culture and digital library. Within this context, the methodology of the study is essentially descriptive and has an attribute for the transmission and synthesis of distributed findings produced in the field of the research. According to the findings of the study results, digital culture is an inclusive term that describes the effects of intellectual technologies in the field of information and communication. Information becomes energy and the spectrum of the information is expanding in the vertical rise through the digital culture. In this context, the digital library appears as a new living space of a new environment. In essence, the digital library is information-oriented; has intellectual technology support and digital platform; is in a digital format; combines information resources and tools in relationship/communication/cooperation by connectedness, and also it is the dynamic face of the digital culture in time and space independence. Resolved with the study is that the digital libraries are active and effective in the formation of global knowing and/or mass wisdom in the process of digital culture.

  16. Evaluating a digital ship design tool prototype: Designers' perceptions of novel ergonomics software.

    Science.gov (United States)

    Mallam, Steven C; Lundh, Monica; MacKinnon, Scott N

    2017-03-01

    Computer-aided solutions are essential for naval architects to manage and optimize technical complexities when developing a ship's design. Although there are an array of software solutions aimed to optimize the human element in design, practical ergonomics methodologies and technological solutions have struggled to gain widespread application in ship design processes. This paper explores how a new ergonomics technology is perceived by naval architecture students using a mixed-methods framework. Thirteen Naval Architecture and Ocean Engineering Masters students participated in the study. Overall, results found participants perceived the software and its embedded ergonomics tools to benefit their design work, increasing their empathy and ability to understand the work environment and work demands end-users face. However, participant's questioned if ergonomics could be practically and efficiently implemented under real-world project constraints. This revealed underlying social biases and a fundamental lack of understanding in engineering postgraduate students regarding applied ergonomics in naval architecture. Copyright © 2016 Elsevier Ltd. All rights reserved.

  17. Characterizing stroke lesions using digital templates and lesion quantification tools in a web-based imaging informatics system for a large-scale stroke rehabilitation clinical trial

    Science.gov (United States)

    Wang, Ximing; Edwardson, Matthew; Dromerick, Alexander; Winstein, Carolee; Wang, Jing; Liu, Brent

    2015-03-01

    Previously, we presented an Interdisciplinary Comprehensive Arm Rehabilitation Evaluation (ICARE) imaging informatics system that supports a large-scale phase III stroke rehabilitation trial. The ePR system is capable of displaying anonymized patient imaging studies and reports, and the system is accessible to multiple clinical trial sites and users across the United States via the web. However, the prior multicenter stroke rehabilitation trials lack any significant neuroimaging analysis infrastructure. In stroke related clinical trials, identification of the stroke lesion characteristics can be meaningful as recent research shows that lesion characteristics are related to stroke scale and functional recovery after stroke. To facilitate the stroke clinical trials, we hope to gain insight into specific lesion characteristics, such as vascular territory, for patients enrolled into large stroke rehabilitation trials. To enhance the system's capability for data analysis and data reporting, we have integrated new features with the system: a digital brain template display, a lesion quantification tool and a digital case report form. The digital brain templates are compiled from published vascular territory templates at each of 5 angles of incidence. These templates were updated to include territories in the brainstem using a vascular territory atlas and the Medical Image Processing, Analysis and Visualization (MIPAV) tool. The digital templates are displayed for side-by-side comparisons and transparent template overlay onto patients' images in the image viewer. The lesion quantification tool quantifies planimetric lesion area from user-defined contour. The digital case report form stores user input into a database, then displays contents in the interface to allow for reviewing, editing, and new inputs. In sum, the newly integrated system features provide the user with readily-accessible web-based tools to identify the vascular territory involved, estimate lesion area

  18. Digital Airborne Photogrammetry—A New Tool for Quantitative Remote Sensing?—A State-of-the-Art Review On Radiometric Aspects of Digital Photogrammetric Images

    Directory of Open Access Journals (Sweden)

    Nikolaj Veje

    2009-09-01

    Full Text Available The transition from film imaging to digital imaging in photogrammetric data capture is opening interesting possibilities for photogrammetric processes. A great advantage of digital sensors is their radiometric potential. This article presents a state-of-the-art review on the radiometric aspects of digital photogrammetric images. The analysis is based on a literature research and a questionnaire submitted to various interest groups related to the photogrammetric process. An important contribution to this paper is a characterization of the photogrammetric image acquisition and image product generation systems. The questionnaire revealed many weaknesses in current processes, but the future prospects of radiometrically quantitative photogrammetry are promising.

  19. Switching To Digital Tools: heritage Evaluation For Preventive Archaeology in Hungary

    Directory of Open Access Journals (Sweden)

    Máté Stibrányi

    2017-03-01

    Full Text Available During the last decade in Hungary, preliminary operations for large-scale archaeological excavations have became more and more important: the stakeholders have realised that it is cost-effective to spend more on the assessment phase rather than incurring higher expenditure because of problems related to an ill-planned project. Thorough knowledge of the size and characteristics of archaeological sites can largely contribute to the protection of the cultural heritage, as well as saving time and money. From 2011 Preliminary Archaeological Evaluations have been a mandatory part of the permission process of large-scale constructions (that is to say, a total minimum cost of c.1,600,000 EUR. These evaluations consist of desktop studies (such as analyses of historical documents and maps, as well as field investigations with a budget of 0.35% of the total construction cost. The goal is to make precise archaeological project plans, and to assess the optimal mitigation process. The Forster Centre – and its predecessor – has been responsible for the coordination and execution of preventive archaeological evaluations since 2013. During that time we have established and tested a GIS-based method which has been effective in large-scale investments and which – due to financial constraints – relies greatly on non-invasive methods as tools to help our investigation strategies. Our current strategy relies on three interdependent tasks: GIS-based field surveys, large-scale magnetometer surveys and targeted trial excavations. The scale of our tasks is challenging and demanding at the same time: the investigation of large areas with various methods gives us substantial and reliable datasets on the archaeological landscape. Collecting and comparing these GIS-based datasets on a nationwide scale gives us an opportunity to determine the most effective methods to identify and protect the archaeological heritage. One of the most promising opportunities is to

  20. The treatable intellectual disability APP www.treatable-id.org: A digital tool to enhance diagnosis & care for rare diseases

    Science.gov (United States)

    2012-01-01

    Background Intellectual disability (ID) is a devastating and frequent condition, affecting 2-3% of the population worldwide. Early recognition of treatable underlying conditions drastically improves health outcomes and decreases burdens to patients, families and society. Our systematic literature review identified 81 such inborn errors of metabolism, which present with ID as a prominent feature and are amenable to causal therapy. The WebAPP translates this knowledge of rare diseases into a diagnostic tool and information portal. Methods & results Freely available as a WebAPP via http://www.treatable-id.org and end 2012 via the APP store, this diagnostic tool is designed for all specialists evaluating children with global delay / ID and laboratory scientists. Information on the 81 diseases is presented in different ways with search functions: 15 biochemical categories, neurologic and non-neurologic signs & symptoms, diagnostic investigations (metabolic screening tests in blood and urine identify 65% of all IEM), therapies & effects on primary (IQ/developmental quotient) and secondary outcomes, and available evidence For each rare condition a ‘disease page’ serves as an information portal with online access to specific genetics, biochemistry, phenotype, diagnostic tests and therapeutic options. As new knowledge and evidence is gained from expert input and PubMed searches this tool will be continually updated. The WebAPP is an integral part of a protocol prioritizing treatability in the work-up of every child with global delay / ID. A 3-year funded study will enable an evaluation of its effectiveness. Conclusions For rare diseases, a field for which financial and scientific resources are particularly scarce, knowledge translation challenges are abundant. With this WebAPP technology is capitalized to raise awareness for rare treatable diseases and their common presenting clinical feature of ID, with the potential to improve health outcomes. This innovative digital

  1. The treatable intellectual disability APP www.treatable-id.org: A digital tool to enhance diagnosis & care for rare diseases

    Directory of Open Access Journals (Sweden)

    van Karnebeek Clara D M

    2012-07-01

    . This innovative digital tool is designed to motivate health care providers to search actively for treatable causes of ID, and support an evidence-based approach to rare metabolic diseases. In our current –omics world with continuous information flow, the effective synthesis of data into accessible, clinical knowledge has become ever more essential to bridge the gap between research and care.

  2. Development of Stand Alone Application Tool for Processing and Quality Measurement of Weld Imperfection Image Captured by μ-Focused Digital Radiography Using MATLAB- Based Graphical User Interface

    Directory of Open Access Journals (Sweden)

    PZ Nadila

    2012-12-01

    Full Text Available Digital radiography incresingly is being applied in the fabrication industry. Compared to film- based radiography, digitally radiographed images can be acquired with less time and fewer exposures. However, noises can simply occur on the digital image resulting in a low-quality result. Due to this and the system’s complexity, parameters’ sensitivity, and environmental effects, the results can be difficult to interpret, even for a radiographer. Therefore, the need of an application tool to improve and evaluate the image is becoming urgent. In this research, a user-friendly tool for image processing and image quality measurement was developed. The resulting tool contains important components needed by radiograph inspectors in analyzing defects and recording the results. This tool was written by using image processing and the graphical user interface development environment and compiler (GUIDE toolbox available in Matrix Laboratory (MATLAB R2008a. In image processing methods, contrast adjustment, and noise removal, edge detection was applied. In image quality measurement methods, mean square error (MSE, peak signal-to-noise ratio (PSNR, modulation transfer function (MTF, normalized signal-to-noise ratio (SNRnorm, sensitivity and unsharpness were used to measure the image quality. The graphical user interface (GUI wass then compiled to build a Windows, stand-alone application that enables this tool to be executed independently without the installation of MATLAB.

  3. Digital-flight-control-system software written in automated-engineering-design language: A user's guide of verification and validation tools

    Science.gov (United States)

    Saito, Jim

    1987-01-01

    The user guide of verification and validation (V&V) tools for the Automated Engineering Design (AED) language is specifically written to update the information found in several documents pertaining to the automated verification of flight software tools. The intent is to provide, in one document, all the information necessary to adequately prepare a run to use the AED V&V tools. No attempt is made to discuss the FORTRAN V&V tools since they were not updated and are not currently active. Additionally, the current descriptions of the AED V&V tools are contained and provides information to augment the NASA TM 84276. The AED V&V tools are accessed from the digital flight control systems verification laboratory (DFCSVL) via a PDP-11/60 digital computer. The AED V&V tool interface handlers on the PDP-11/60 generate a Univac run stream which is transmitted to the Univac via a Remote Job Entry (RJE) link. Job execution takes place on the Univac 1100 and the job output is transmitted back to the DFCSVL and stored as a PDP-11/60 printfile.

  4. Switchgrass a valuable biomass crop for energy

    CERN Document Server

    2012-01-01

    The demand of renewable energies is growing steadily both from policy and from industry which seeks environmentally friendly feed stocks. The recent policies enacted by the EU, USA and other industrialized countries foresee an increased interest in the cultivation of energy crops; there is clear evidence that switchgrass is one of the most promising biomass crop for energy production and bio-based economy and compounds. Switchgrass: A Valuable Biomass Crop for Energy provides a comprehensive guide to  switchgrass in terms of agricultural practices, potential use and markets, and environmental and social benefits. Considering this potential energy source from its biology, breed and crop physiology to its growth and management to the economical, social and environmental impacts, Switchgrass: A Valuable Biomass Crop for Energy brings together chapters from a range of experts in the field, including a foreword from Kenneth P. Vogel, to collect and present the environmental benefits and characteristics of this a ...

  5. Vulnerability of particularly valuable areas. Summary

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-07-01

    This report is part of the scientific basis for the management plan for the North Sea and Skagerrak. The report focuses on the vulnerability of particularly valuable areas to petroleum activities, maritime transport, fisheries, land-based and coastal activities and long-range transboundary pollution. A working group with representatives from many different government agencies, headed by the Institute of Marine Research and the Directorate for Nature Management, has been responsible for drawing up the present report on behalf of the Expert Group for the North Sea and Skagerrak. The present report considers the 12 areas that were identified as particularly valuable during an earlier stage of the management plan process on the environment, natural resources and pollution. There are nine areas along the coast and three open sea areas in the North Sea that were identified according to the same predefined criteria as used for the management plans for the Barents Sea: Lofoten area and the Norwegian Sea. The most important criteria for particularly valuable areas are importance for biological production and importance for biodiversity.(Author)

  6. Vulnerability of particularly valuable areas. Summary

    International Nuclear Information System (INIS)

    2012-01-01

    This report is part of the scientific basis for the management plan for the North Sea and Skagerrak. The report focuses on the vulnerability of particularly valuable areas to petroleum activities, maritime transport, fisheries, land-based and coastal activities and long-range transboundary pollution. A working group with representatives from many different government agencies, headed by the Institute of Marine Research and the Directorate for Nature Management, has been responsible for drawing up the present report on behalf of the Expert Group for the North Sea and Skagerrak. The present report considers the 12 areas that were identified as particularly valuable during an earlier stage of the management plan process on the environment, natural resources and pollution. There are nine areas along the coast and three open sea areas in the North Sea that were identified according to the same predefined criteria as used for the management plans for the Barents Sea: Lofoten area and the Norwegian Sea. The most important criteria for particularly valuable areas are importance for biological production and importance for biodiversity.(Author)

  7. Q.U.E.S.T. An Interactive Earth Science Study Tool: Connecting Real Students to Digital Libraries

    Science.gov (United States)

    Moore, A.; Danowski, D.; Brindisi, C.; Sandvol, C.; Seber, D.

    2001-05-01

    Quick Use Earth Study Tool (QUEST) is an experimental educational interface to the Cornell University's Geoscience Information System (http://atlas.geo.cornell.edu). The information system currently includes more than 100 geographic, geologic, and geophysical data sets along with World Wide Web based interactive mapping tools for data display and analysis. The system is GIS based and accessible via any web browser that support Java applets. QUEST is the companion module that has been developed to assist educators who wish to use these data to their fullest potential, providing tutorials, sample exercises, and suggested projects. Clearly, students learn best when they engage in the practice of science. One means to accomplish this is to have students access primary scientific data. Our experience suggests that a structured exploration of original data sets enhances student learning. For this reason we have selected a subset of Cornell's available geoscience data, and have designed a series of activities that allow students to explore dynamic Earth processes. Currently, these data include the ISC seismicity catalog, volcanism data from the Smithsonian Institution, and digital topography from the USGS and NOAA. The QUEST interface allows students to query the data sets based on a variety of criteria (e.g., earthquakes can be sorted by date, magnitude, depth, and location), or perform computations on data (e.g., sea level can be interactively mapped at any elevation on the DEM). Because the system is GIS-based, multiple data sets can be displayed simultaneously in order for users to examine the spatial relationships between geological features. Users can zoom in to regions of interest, and a map history window keeps track of student work so that comparisons are easily made. QUEST is accompanied by a Teacher's Manual to assist teachers in extracting the most information from the available data and tools. Through these efforts we hope to provide teachers and students

  8. Digital curation and online resources: digital scanning of surgical tools at the royal college of physicians and surgeons of Glasgow for an open university learning resource.

    Science.gov (United States)

    Earley, Kirsty; Livingstone, Daniel; Rea, Paul M

    2017-01-01

    Collection preservation is essential for the cultural status of any city. However, presenting a collection publicly risks damage. Recently this drawback has been overcome by digital curation. Described here is a method of digitisation using photogrammetry and virtual reality software. Items were selected from the Royal College of Physicians and Surgeons of Glasgow archives, and implemented into an online learning module for the Open University. Images were processed via Agisoft Photoscan, Autodesk Memento, and Garden Gnome Object 2VR. Although problems arose due to specularity, 2VR digital models were developed for online viewing. Future research must minimise the difficulty of digitising specular objects.

  9. Web platform using digital image processing and geographic information system tools: a Brazilian case study on dengue.

    Science.gov (United States)

    Brasil, Lourdes M; Gomes, Marília M F; Miosso, Cristiano J; da Silva, Marlete M; Amvame-Nze, Georges D

    2015-07-16

    Dengue fever is endemic in Asia, the Americas, the East of the Mediterranean and the Western Pacific. According to the World Health Organization, it is one of the diseases of greatest impact on health, affecting millions of people each year worldwide. A fast detection of increases in populations of the transmitting vector, the Aedes aegypti mosquito, is essential to avoid dengue outbreaks. Unfortunately, in several countries, such as Brazil, the current methods for detecting populations changes and disseminating this information are too slow to allow efficient allocation of resources to fight outbreaks. To reduce the delay in providing the information regarding A. aegypti population changes, we propose, develop, and evaluate a system for counting the eggs found in special traps and to provide the collected data using a web structure with geographical location resources. One of the most useful tools for the detection and surveillance of arthropods is the ovitrap, a special trap built to collect the mosquito eggs. This allows for an egg counting process, which is still usually performed manually, in countries such as Brazil. We implement and evaluate a novel system for automatically counting the eggs found in the ovitraps' cardboards. The system we propose is based on digital image processing (DIP) techniques, as well as a Web based Semi-Automatic Counting System (SCSA-WEB). All data collected are geographically referenced in a geographic information system (GIS) and made available on a Web platform. The work was developed in Gama's administrative region, in Brasília/Brazil, with the aid of the Environmental Surveillance Directory (DIVAL-Gama) and Brasília's Board of Health (SSDF), in partnership with the University of Brasília (UnB). The system was built based on a field survey carried out during three months and provided by health professionals. These professionals provided 84 cardboards from 84 ovitraps, sized 15 × 5 cm. In developing the system, we conducted

  10. Ground and Aerial Digital Documentation of Cultural Heritage: Providing Tools for 3d Exploitation of Archaeological Data

    Science.gov (United States)

    Cantoro, G.

    2017-02-01

    Archaeology is by its nature strictly connected with the physical landscape and as such it explores the inter-relations of individuals with places in which they leave and the nature that surrounds them. Since its earliest stages, archaeology demonstrated its permeability to scientific methods and innovative techniques or technologies. Archaeologists were indeed between the first to adopt GIS platforms (since already almost three decades) on large scale and are now between the most demanding customers for emerging technologies such as digital photogrammetry and drone-aided aerial photography. This paper aims at presenting case studies where the "3D approach" can be critically analysed and compared with more traditional means of documentation. Spot-light is directed towards the benefits of a specifically designed platform for user to access the 3D point-clouds and explore their characteristics. Beside simple measuring and editing tools, models are presented in their actual context and location, with historical and archaeological information provided on the side. As final step of a parallel project on geo-referencing and making available a large archive of aerial photographs, 3D models derived from photogrammetric processing of images have been uploaded and linked to photo-footprints polygons. Of great importance in such context is the possibility to interchange the point-cloud colours with satellite imagery from OpenLayers. This approach makes it possible to explore different landscape configurations due to time-changes with simple clicks. In these cases, photogrammetry or 3D laser scanning replaced, sided or integrated legacy documentation, creating at once a new set of information for forthcoming research and ideally new discoveries.

  11. Scholastic Journalism Teacher Use of Digital Devices and Social Networking Tools in a Poor, Largely Rural State

    Science.gov (United States)

    Plopper, Bruce L.; Conaway, Anne Fleming

    2013-01-01

    Research showing adolescents' ever-increasing use of digital devices, combined with calls from governmental officials to incorporate more technology into classroom activities, prompted this survey of Arkansas scholastic journalism advisers. The goal was to determine how they used digital communication devices in their teaching. Results showed lack…

  12. Digital Tools and Challenges to Institutional Traditions of Learning: Technologies, Social Memory and the Performative Nature of Learning

    Science.gov (United States)

    Saljo, R.

    2010-01-01

    The purpose of this article is to offer some reflections on the relationships between digital technologies and learning. It is argued that activities of learning, as they have been practised within institutionalized schooling, are coming under increasing pressure from the developments of digital technologies and the capacities to store, access and…

  13. Usefulness of a Small-Field Digital Mammographic Imaging System Using Parabolic Polycapillary Optics as a Diagnostic Imaging Tool: a Preliminary Study

    International Nuclear Information System (INIS)

    Chon, Kwon Su; Park, Jeong Gon; Son, Hyun Hwa; Kang, Sung Hoon; Park, Seong Hoon; Kim, Hye Won; Kim, Hun Soo; Yoon, Kwon Ha

    2009-01-01

    To evaluate the efficacy for spatial resolution and radiation dose of a small-field digital mammographic imaging system using parabolic polycapillary optics. We developed a small-field digital mammographic imaging system composed of a CCD (charge coupled device) detector and an Xray source coupled with parabolic polycapillary optics. The spatial resolution and radiation dose according to various filters were evaluated for a small-field digital mammographic imaging system. The images of a test standard phantom and breast cancer tissue sample were obtained. The small-field digital mammographic imaging system had spatial resolutions of 12 lp/mm with molybdenum and rhodium filters with a 25-μm thickness. With a thicker molybdenum filter (100 μm thick), the system had a higher spatial resolution of 11 lp/mm and contrast of 0.48. The radiation dose for a rhodium filter with a 25-μm thickness was 0.13 mGy within a 10-mm-diameter local field. A larger field image greater than 10 mm in diameter could be obtained by scanning an object. On the small-field mammographic imaging system, microcalcifications of breast cancer tissue were clearly observed. A small-field digital mammographic imaging system with parabolic polycapillary optics may be a useful diagnostic tool for providing high-resolution imaging with a low radiation dose for examination of local volumes of breast tissue

  14. Usefulness of a Small-Field Digital Mammographic Imaging System Using Parabolic Polycapillary Optics as a Diagnostic Imaging Tool: a Preliminary Study

    Energy Technology Data Exchange (ETDEWEB)

    Chon, Kwon Su [Catholic University of Daegu, Daegu (Korea, Republic of); Park, Jeong Gon; Son, Hyun Hwa; Kang, Sung Hoon; Park, Seong Hoon; Kim, Hye Won; Kim, Hun Soo; Yoon, Kwon Ha [Wonkwang University, Iksan (Korea, Republic of)

    2009-12-15

    To evaluate the efficacy for spatial resolution and radiation dose of a small-field digital mammographic imaging system using parabolic polycapillary optics. We developed a small-field digital mammographic imaging system composed of a CCD (charge coupled device) detector and an Xray source coupled with parabolic polycapillary optics. The spatial resolution and radiation dose according to various filters were evaluated for a small-field digital mammographic imaging system. The images of a test standard phantom and breast cancer tissue sample were obtained. The small-field digital mammographic imaging system had spatial resolutions of 12 lp/mm with molybdenum and rhodium filters with a 25-{mu}m thickness. With a thicker molybdenum filter (100 {mu}m thick), the system had a higher spatial resolution of 11 lp/mm and contrast of 0.48. The radiation dose for a rhodium filter with a 25-{mu}m thickness was 0.13 mGy within a 10-mm-diameter local field. A larger field image greater than 10 mm in diameter could be obtained by scanning an object. On the small-field mammographic imaging system, microcalcifications of breast cancer tissue were clearly observed. A small-field digital mammographic imaging system with parabolic polycapillary optics may be a useful diagnostic tool for providing high-resolution imaging with a low radiation dose for examination of local volumes of breast tissue.

  15. El portafolio digital como herramienta didáctica: una evaluación crítica de fortalezas y debilidades = The digital portfolio as a teaching tool: a critical evaluation of its strengths and weaknesses

    Directory of Open Access Journals (Sweden)

    Olga Moreno-Fernández

    2017-01-01

    Full Text Available Resumen: Se presenta un estudio exploratorio sobre el uso del portafolio digital como herramienta educativa. La experiencia se centró en valorar las debilidades, amenazas, fortalezas y oportunidades de esta herramienta a partir de las apreciaciones de los participantes. De igual modo, se pretende conocer hasta qué punto su utilización potencia habilidades y competencias relevantes en el Espacio Europeo de Educación Superior, tanto a nivel individual como grupal. Para ello, se llevó a cabo un estudio de naturaleza descriptiva a través de la técnica de la encuesta (cuestionario. Los resultados muestran que se trata de una herramienta de aprendizaje valorada positivamente que favorece cuestiones como la accesibilidad al aprendizaje cooperativo o el ahorro económico y medioambiental. A partir de estas valoraciones concluimos que el portafolio digital contribuye al proceso de enseñanza-aprendizaje, favoreciendo que el alumnado sea consciente de éste, y acercándole progresivamente a un aprendizaje más autónomo y responsable.Abstract: An exploratory study on the use of the digital portfolio as an educational tool is presented. The experience focused on assessing the weaknesses, threats, strengths and opportunities of this tool based on the participants' assessments. Likewise, it seeks to know to what extent its use enhances skills and competences relevant in the European Higher Education Area, both individually and as a group. To do this, we conducted a study of descriptive nature through technical survey (questionnaire. The results show that this is a positively valued learning tool that favors issues such as accessibility to cooperative learning or economic and environmental cost savings without printing paper. We conclude therefore that the digital portfolio contributes to the process of teaching and learning, encouraging the students to be aware of this, and progressively bringing you to a more autonomous and responsible learning.

  16. From grand narratives of democracy to small expectations of participation : Audiences, citizenship, and interactive tools in digital journalism

    NARCIS (Netherlands)

    Peters, Chris; Witschge, Tamara

    2014-01-01

    This article critically examines the invocation of democracy in the discourse of audience participation in digital journalism. Rather than simply restate the familiar grand narratives that traditionally described journalism's function for democracy (information source, watchdog, public

  17. From Grand Narratives of Democracy to Small Expectations of Participation:Audiences, citizenship, and interactive tools in digital journalism

    OpenAIRE

    Peters, Chris; Witschge, Tamara

    2016-01-01

    This chapter critically examines the invocation of democracy in the discourse of audience participation in digital journalism. Rather than simply restate the familiar grand narratives that traditionally described journalism’s function for democracy (information source, watchdog, public representative, mediation for political actors), we compare and contrast conceptualisations of the audience found within these and discuss how digital technologies impact these relationships. We consider how “p...

  18. Recovery and utilization of valuable metals from spent nuclear fuel. 3: Mutual separation of valuable metals

    International Nuclear Information System (INIS)

    Kirishima, K.; Shibayama, H.; Nakahira, H.; Shimauchi, H.; Myochin, M.; Wada, Y.; Kawase, K.; Kishimoto, Y.

    1993-01-01

    In the project ''Recovery and Utilization of Valuable Metals from Spent Fuel,'' mutual separation process of valuable metals recovered from spent fuel has been studied by using the simulated solution contained Pb, Ru, Rh, Pd and Mo. Pd was separated successfully by DHS (di-hexyl sulfide) solvent extraction method, while Pb was recovered selectively from the raffinate by neutralization precipitation of other elements. On the other hand, Rh was roughly separated by washing the precipitate with alkaline solution, so that Rh was refined by chelate resin CS-346. Outline of the mutual separation process flow sheet has been established of the combination of these techniques. The experimental results and the process flow sheet of mutual separation of valuable metals are presented in this paper

  19. Recovering valuable metals from recycled photovoltaic modules.

    Science.gov (United States)

    Yi, Youn Kyu; Kim, Hyun Soo; Tran, Tam; Hong, Sung Kil; Kim, Myong Jun

    2014-07-01

    Recovering valuable metals such as Si, Ag, Cu, and Al has become a pressing issue as end-of-life photovoltaic modules need to be recycled in the near future to meet legislative requirements in most countries. Of major interest is the recovery and recycling of high-purity silicon (> 99.9%) for the production of wafers and semiconductors. The value of Si in crystalline-type photovoltaic modules is estimated to be -$95/kW at the 2012 metal price. At the current installed capacity of 30 GW/yr, the metal value in the PV modules represents valuable resources that should be recovered in the future. The recycling of end-of-life photovoltaic modules would supply > 88,000 and 207,000 tpa Si by 2040 and 2050, respectively. This represents more than 50% of the required Si for module fabrication. Experimental testwork on crystalline Si modules could recover a > 99.98%-grade Si product by HNO3/NaOH leaching to remove Al, Ag, and Ti and other metal ions from the doped Si. A further pyrometallurgical smelting at 1520 degrees C using CaO-CaF2-SiO2 slag mixture to scavenge the residual metals after acid leaching could finally produce > 99.998%-grade Si. A process based on HNO3/NaOH leaching and subsequent smelting is proposed for recycling Si from rejected or recycled photovoltaic modules. Implications: The photovoltaic industry is considering options of recycling PV modules to recover metals such as Si, Ag, Cu, Al, and others used in the manufacturing of the PV cells. This is to retain its "green" image and to comply with current legislations in several countries. An evaluation of potential resources made available from PV wastes and the technologies used for processing these materials is therefore of significant importance to the industry. Of interest are the costs of processing and the potential revenues gained from recycling, which should determine the viability of economic recycling of PV modules in the future.

  20. Adaptive digital filters

    CERN Document Server

    Kovačević, Branko; Milosavljević, Milan

    2013-01-01

    “Adaptive Digital Filters” presents an important discipline applied to the domain of speech processing. The book first makes the reader acquainted with the basic terms of filtering and adaptive filtering, before introducing the field of advanced modern algorithms, some of which are contributed by the authors themselves. Working in the field of adaptive signal processing requires the use of complex mathematical tools. The book offers a detailed presentation of the mathematical models that is clear and consistent, an approach that allows everyone with a college level of mathematics knowledge to successfully follow the mathematical derivations and descriptions of algorithms.   The algorithms are presented in flow charts, which facilitates their practical implementation. The book presents many experimental results and treats the aspects of practical application of adaptive filtering in real systems, making it a valuable resource for both undergraduate and graduate students, and for all others interested in m...

  1. [Psychopathology and film: a valuable interaction?].

    Science.gov (United States)

    van Duppen, Z; Summa, M; Fuchs, T

    2015-01-01

    Film or film fragments are often used in psychopathology education. However, so far there have been very few articles that have discussed the benefits and limitations of using films to explain or illustrate psychopathology. Although numerous films involves psychopathology in varying degrees, it is not clear how we can use films for psychopathology education. To examine the advantages, limitations and possible methods of using film as a means of increasing our knowledge and understanding of psychiatric illnesses. We discuss five examples that illustrate the interaction of film and psychopathology. On the one hand we explain how the psychopathological concepts are used in each film and on the other hand we explain which aspects of each film are valuable aids for teaching psychopathology. The use of film makes it possible to introduce the following topics in psychopathological teaching programme: holistic psychiatric reasoning, phenomenology and the subjective experience, the recognition of psychopathological prototypes and the importance of context. There is undoubtedly an analogy between the method we have chosen for teaching psychopathology with the help of films and the holistic approach of the psychiatrist and his or her team. We believe psychopathology education can benefit from films and we would recommend our colleagues to use it in this way.

  2. PICKLED PUMPKIN IS VALUABLE FOOD PRODUCT

    Directory of Open Access Journals (Sweden)

    T. A. Sannikova

    2017-01-01

    Full Text Available One of the main directions of the food industry development is the production of functional food products. Changes in the human’s diet structure cause that none of population group does receive necessary amount of vitamins, macro and microelements in healthy routine diet. To solve this problem, food stuffs enhanced by different ingredients enable to improve the biological and food value. The pumpkin is a valuable source of such important substances as carotene and pectin. Addition of garlic and hot pepper ingredients to process of pumpkin pickling enables to enrich the products with carbohydrates, proteins, microelements, which have low or no content in the pumpkin fruit. Therefore, the study of the influence of the different quantities of garlic and hot pepper additions on chemical composition of finished product is very important. The influence of plant additions used on chemical composition of finished product had been well determined. It was shown that through increased doses of garlic and hot pepper ingredients as compared with control, the carotene and dry matter content then decreased by 1.16%-3.43% in pickled pumpkin, while the pectin content depended on added component. The highest pectin content, 0.71% was observed at addition of 10 g. garlic ingredient per 1 kg. of raw matter, that was 4.1 times higher than control. With increased addition of hot pepper ingredient the pectin accumulation was decreasing from 0.58% in control to 0.36% in variant 10g. per 1kg. of raw matter.

  3. Digital Inclusion & Health Communication: A Rapid Review of Literature.

    Science.gov (United States)

    Borg, Kim; Boulet, Mark; Smith, Liam; Bragge, Peter

    2018-06-11

    Information and communication technologies can be a valuable tool for enhancing health communication. However, not everyone is utilising the wide suite of digital opportunities. This disparity has the potential to exacerbate existing social and health inequalities, particularly among vulnerable groups such as those who are in poor health and the elderly. This review aimed to systematically identify the common barriers to, and facilitators of, digital inclusion. A comprehensive database search yielded 969 citations. Following screening, seven systematic reviews and three non-systematic reviews were identified. Collectively, the reviews found that physical access continues to be a barrier to digital inclusion. However, provision of access alone is insufficient, as digital ability and attitude were also potential barriers. Social support, direct user experience and collaborative learning/design were identified as key strategies to improve inclusion. These review findings provide guidance for health communication practitioners in designing and implementing effective programmes in the digital environment.

  4. Digital printing

    Science.gov (United States)

    Sobotka, Werner K.

    1997-02-01

    Digital printing is described as a tool to replace conventional printing machines completely. Still this goal was not reached until now with any of the digital printing technologies to be described in the paper. Productivity and costs are still the main parameters and are not really solved until now. Quality in digital printing is no problem anymore. Definition of digital printing is to transfer digital datas directly on the paper surface. This step can be carried out directly or with the use of an intermediate image carrier. Keywords in digital printing are: computer- to-press; erasable image carrier; image carrier with memory. Digital printing is also the logical development of the new digital area as it is pointed out in Nicholas Negropotes book 'Being Digital' and also the answer to networking and Internet technologies. Creating images text and color in one country and publishing the datas in another country or continent is the main advantage. Printing on demand another big advantage and last but not least personalization the last big advantage. Costs and being able to coop with this new world of prepress technology is the biggest disadvantage. Therefore the very optimistic growth rates for the next few years are really nonexistent. The development of complete new markets is too slow and the replacing of old markets is too small.

  5. How Much Professional Development Is Enough? Meeting the Needs of Independent Music Teachers Learning to Use a Digital Tool

    Science.gov (United States)

    Upitis, Rena; Brook, Julia

    2017-01-01

    Even though there are demonstrated benefits of using online tools to support student musicians, there is a persistent challenge of providing sufficient and effective professional development for independent music teachers to use such tools successfully. This paper describes several methods for helping teachers use an online tool called iSCORE,…

  6. Digital displacements

    DEFF Research Database (Denmark)

    Pors, Anja Svejgaard

    2014-01-01

    In recent years digital reforms are being introduced in the municipal landscape of Denmark. The reforms address the interaction between citizen and local authority. The aim is, that by 2015 at least 80 per cent of all correspondence between citizens and public authority will be transmitted through...... digital interface. However, the transformation of citizen services from traditional face-to-face interaction to digital self-service gives rise to new practices; some citizens need support to be able to manage self-service through digital tools. A mixture of support and teaching, named co......-service, is a new task in public administration, where street level bureaucrats assist citizens in using the new digital solutions. The paper is based on a case study conducted primarily in a citizen service centre in Copenhagen, Denmark. Based on ethnography the paper gives an empirical account of the ongoing...

  7. Digital platforms as enablers for digital transformation

    DEFF Research Database (Denmark)

    Hossain, Mokter; Lassen, Astrid Heidemann

    transformation is crucial. This study aims at exploring how organizations are driven towards transformation in various ways to embrace digital platforms for ideas, technologies, and knowledge. It shows the opportunities and challenges digital platforms bring in organizations. It also highlights underlying......Digital platforms offer new ways for organizations to collaborate with the external environment for ideas, technologies, and knowledge. They provide new possibilities and competence but they also bring new challenges for organizations. Understanding the role of these platforms in digital...... mechanisms and potential outcomes of various digital platforms. The contribution of the submission is valuable for scholars to understand and further explore this area. It provides insight for practitioners to capture value through digital platforms and accelerate the pace of organizations’ digital...

  8. Digital Humanities

    DEFF Research Database (Denmark)

    Brügger, Niels

    2016-01-01

    , and preserving material to study, as an object of study in its own right, as an analytical tool, or for collaborating, and for disseminating results. The term "digital humanities" was coined around 2001, and gained currency within academia in the following years. However, computers had been used within......Digital humanities is an umbrella term for theories, methodologies, and practices related to humanities scholarship that use the digital computer as an integrated and essential part of its research and teaching activities. The computer can be used for establishing, finding, collecting...

  9. The 21st Century Digital Student: Google Books as a Tool in Promoting Undergraduate Research in the Humanities

    Science.gov (United States)

    Karpenko, Lara; Dietz, Lauri

    2013-01-01

    In this article, we contend that publically available, mass digitization projects, such as Google Books, present faculty, regardless of their specific institutional context, with an exciting opportunity to promote meaningful undergraduate research in the humanities. By providing a classroom case study and by proposing an institutional model, we…

  10. Creating an anthropomorphic digital MR phantom—an extensible tool for comparing and evaluating quantitative imaging algorithms

    International Nuclear Information System (INIS)

    Bosca, Ryan J; Jackson, Edward F

    2016-01-01

    Assessing and mitigating the various sources of bias and variance associated with image quantification algorithms is essential to the use of such algorithms in clinical research and practice. Assessment is usually accomplished with grid-based digital reference objects (DRO) or, more recently, digital anthropomorphic phantoms based on normal human anatomy. Publicly available digital anthropomorphic phantoms can provide a basis for generating realistic model-based DROs that incorporate the heterogeneity commonly found in pathology. Using a publicly available vascular input function (VIF) and digital anthropomorphic phantom of a normal human brain, a methodology was developed to generate a DRO based on the general kinetic model (GKM) that represented realistic and heterogeneously enhancing pathology. GKM parameters were estimated from a deidentified clinical dynamic contrast-enhanced (DCE) MRI exam. This clinical imaging volume was co-registered with a discrete tissue model, and model parameters estimated from clinical images were used to synthesize a DCE-MRI exam that consisted of normal brain tissues and a heterogeneously enhancing brain tumor. An example application of spatial smoothing was used to illustrate potential applications in assessing quantitative imaging algorithms. A voxel-wise Bland–Altman analysis demonstrated negligible differences between the parameters estimated with and without spatial smoothing (using a small radius Gaussian kernel). In this work, we reported an extensible methodology for generating model-based anthropomorphic DROs containing normal and pathological tissue that can be used to assess quantitative imaging algorithms. (paper)

  11. How valuable is word of mouth?

    Science.gov (United States)

    Kumar, V; Petersen, J Andrew; Leone, Robert P

    2007-10-01

    The customers who buy the most from you are probably not your best marketers. What's more, your best marketers may be worth far more to your company than your most enthusiastic consumers. Those are the conclusions of professors Kumar and Petersen at the University of Connecticut and professor Leone at Ohio State University, who analyzed thousands of customers in research focused on a telecommunications company and a financial services firm. In this article, the authors present a straightforward tool that can be used to calculate both customer lifetime value (CLV), the worth of your customers' purchases, and customer referral value (CRV), the value of their referrals. Knowing both enables you to segment your customers into four constituent parts: those that buy a lot but are poor marketers (which they term Affluents); those that don't buy much but are very strong salespeople for your firm (Advocates); those that do both well (Champions); and those that do neither well (Misers). In a series of one-year experiments, the authors demonstrated the effectiveness of this segmentation approach. Offering purchasing incentives to Advocates, referral incentives to Affluents, and both to Misers, they were able to move significant proportions of all three into the Champions category. Both companies reaped returns on their marketing investments greater than 12-fold--more than double the normal marketing ROI for their industries. The power of this tool is its ability to help marketers decide where to focus their efforts. Rather than waste funds encouraging big spenders to spend slightly more while overlooking the power of customer evangelists who don't buy enough to seem important, you can reap much higher rewards by nudging big spenders to make referrals and urging enthusiastic proponents of your wares to buy a bit more.

  12. UNA HERRAMIENTA DE DIAGNÓSTICO PARA ENLACES DE SUSCRIPCIÓN DIGITAL ASIMÉTRICA (ADSL A DIAGNOSTIC TOOL FOR ASYMMETRIC DIGITAL SUBSCRIBER LINE LINKS

    Directory of Open Access Journals (Sweden)

    Mario Medina Carrasco

    2009-04-01

    Full Text Available Se presenta el software CuLineAnalyzer, una herramienta de diagnóstico para enlaces ADSL que aprovecha las mediciones de las razones señal-ruido (SNR de los subcanales de la técnica de transmisión DMT realizadas por las propias unidades de terminación ADSL (ATU. Estos datos son adquiridos remotamente y se almacenan en una estación central, desde donde pueden ser desplegados a solicitud del operador, el cual los utiliza para realizar los diagnósticos pertinentes. Una fortaleza importante de esta herramienta es la capacidad de almacenar mediciones realizadas a diferentes horas del día durante largos períodos para detectar así condiciones esporádicas, errores espurios y tendencias en la condición de la línea. Esta herramienta ha sido usada con éxito para monitorear un banco de módems ADSL Alcatel SpeedTouch. El diseño modular y operación paramétrica de la herramienta permite adaptarla fácilmente a nuevos modelos de módems ADSL y DSLAMs.We present the CuLineAnalyzer software, a diagnostic tool for ADSL links that leverages the DMT subchannel signal-to-noise ratio (SNR measurements made by the ATUs themselves. These measurements are read via remote access and are logged into a central server, from which they can be displayed under operator control, so the pertinent diagnosis can be performed. An important strength of this tool is that it can store measurements performed at different times for long periods, so as to detect sporadic conditions, spurious errors and line condition trends. This tool has been used successfully to monitor a bank of Alcatel SpeedTouch ADSL modems. The tool's modular design and parametric operation makes it easy to adapt it to new ADSL modem and DSLAM models.

  13. Beyond engagement in working with children in eight Nairobi slums to address safety, security, and housing: Digital tools for policy and community dialogue.

    Science.gov (United States)

    Mitchell, Claudia; Chege, Fatuma; Maina, Lucy; Rothman, Margot

    2016-01-01

    This article studies the ways in which researchers working in the area of health and social research and using participatory visual methods might extend the reach of participant-generated creations such as photos and drawings to engage community leaders and policy-makers. Framed as going 'beyond engagement', the article explores the idea of the production of researcher-led digital dialogue tools, focusing on one example, based on a series of visual arts-based workshops with children from eight slums in Nairobi addressing issues of safety, security, and well-being in relation to housing. The authors conclude that there is a need for researchers to embark upon the use of visual tools to expand the life and use of visual productions, and in particular to ensure meaningful participation of communities in social change.

  14. Integrated digital planning and management tools - the example of buildings; Integrierte digitale Planungs- und Management-Werkzeuge - am Beispiel von Gebaeuden

    Energy Technology Data Exchange (ETDEWEB)

    Gauchel, J. [WIBc, Objektorientierte Systeme fuer Gebaeudeplanung und -management, Karlsruhe (Germany)

    1995-12-31

    In chapter 4 of the anthology about building control integrated digital planning and management tools are described. Integrated planning and management tools are task-orientated data processing applications, which are integrated into a data management and a common user-interface. The following aspects are discussed: realistic modelling, CAD-systems, object-orientated system architecture as well as building management. (BWI) [Deutsch] Kapitel 4 des Sammelbandes ueber Building Control ist Integrierten digitalen Planungs- und Managementwerkzeugen gewindmet. Unter Integrierten Planungs- und Managementwerkzeugen werden dabei aufgabenorientierte EDV-Anwendungen verstanden, die in eine gemeinsame Datenverwaltung und ein gemeinsames Nutzer-Interface eingebunden sind. Folgende Themen werden angesprochen: Realistische Modellierung, CAD-Systeme, objektorientierte Systemarchitekturen sowie Gebaeudemanagement. (BWI)

  15. Digital radiograph of the middle phalanx of the third finger (MP3 region as a tool for skeletal maturity assessment

    Directory of Open Access Journals (Sweden)

    Deepa Y Hegde

    2012-01-01

    Results: The correlation determined between the MP3 stages and cervical vertebrae maturity index (CVMI stages, the peak-wise distribution of the MP3 stages, and the correlation between the MP3 stages and the chronological age were found to be highly significant. Conclusions: Digital radiograph of the MP3 region is definitely a simple, reliable, cost-effective, and time-saving technique for the assessment of skeletal maturity.

  16. The virtual digital nuclear power plant: A modern tool for supporting the lifecycle of VVER-based nuclear power units

    Science.gov (United States)

    Arkadov, G. V.; Zhukavin, A. P.; Kroshilin, A. E.; Parshikov, I. A.; Solov'ev, S. L.; Shishov, A. V.

    2014-10-01

    The article describes the "Virtual Digital VVER-Based Nuclear Power Plant" computerized system comprising a totality of verified initial data (sets of input data for a model intended for describing the behavior of nuclear power plant (NPP) systems in design and emergency modes of their operation) and a unified system of new-generation computation codes intended for carrying out coordinated computation of the variety of physical processes in the reactor core and NPP equipment. Experiments with the demonstration version of the "Virtual Digital VVER-Based NPP" computerized system has shown that it is in principle possible to set up a unified system of computation codes in a common software environment for carrying out interconnected calculations of various physical phenomena at NPPs constructed according to the standard AES-2006 project. With the full-scale version of the "Virtual Digital VVER-Based NPP" computerized system put in operation, the concerned engineering, design, construction, and operating organizations will have access to all necessary information relating to the NPP power unit project throughout its entire lifecycle. The domestically developed commercial-grade software product set to operate as an independently operating application to the project will bring about additional competitive advantages in the modern market of nuclear power technologies.

  17. Digital radiograph of the middle phalanx of the third finger (MP3) region as a tool for skeletal maturity assessment.

    Science.gov (United States)

    Hegde, Deepa Y; Baliga, Sudhindra; Yeluri, Ramakrishna; Munshi, A K

    2012-01-01

    To evaluate the reliability of the digital radiograph of the middle phalanx of the third finger (MP3) in skeletal maturity assessment. Fifty children (24 girls and 26 boys) belonging to the circumpubertal age-group were selected for the study. Two radiographs - lateral cephalogram and digital radiograph of the MP3 region - were taken in each child. Age assessment was based on the changes in shape of the cervical vertebrae and the epiphysis of the middle phalanx of the third finger of the left hand. The radiographs were assessed by three examiners. The inter- and intraexaminer variability were determined by the Wilcoxon rank sign test and the Kruskal-Wallis test and were found to be nonsignificant. Examiner 3 showed the best intraexaminer agreement and was selected to evaluate the radiographs for the entire study. The correlation determined between the MP3 stages and cervical vertebrae maturity index (CVMI) stages, the peak-wise distribution of the MP3 stages, and the correlation between the MP3 stages and the chronological age were found to be highly significant. Digital radiograph of the MP3 region is definitely a simple, reliable, cost-effective, and time-saving technique for the assessment of skeletal maturity.

  18. The digital aqueous humor outflow meter: an alternative tool for screening of the human eye outflow facility

    Directory of Open Access Journals (Sweden)

    Vassilios P Kozobolis

    2010-08-01

    Full Text Available Vassilios P Kozobolis, Eleftherios I Paschalis, Nikitas C Foudoulakis, Stavrenia C Koukoula, Georgios LabirisDepartment of Ophthalmology and Eye Institute of Thrace, Democritus University of Thrace, Alexandroupolis, GreecePurpose: To develop, characterize, and validate a prototype digital aqueous humor outflow tonographer (DAHOM.Material and methods: The DAHOM was developed, characterized, and validated in three phases. Phase 1 involved construction of the sensor. This was broadly based on the fundamental design of a typical Schiotz tonographer with a series of improvements, including corneal indentation, which was converted to an electrical signal via a linear variable differential transducer, an analog signal which was converted to digital via ADC circuitry, and digital data acquisition and processing which was made possible by a serial port interface. Phase 2 comprised development of software for automated assessment of the outflow facility. Automated outflow facility assessment incorporated a series of fundamental improvements in comparison with traditional techniques, including software-based filtering of ripple noise and extreme variations, rigidity impact analysis, and evaluation of the impact of patient age, central corneal thickness, and ocular axial length. Phase 3 comprised characterization and validation of DAHOM, for which we developed an experimental setup using porcine cadaver eyes. DAHOM’s repeatability was evaluated by means of Cronbach’s alpha and intraclass correlation coefficient. The level of agreement with a standard Schiotz tonographer was evaluated by means of paired t-tests and Bland-Altman analysis in human eyes.Results: The experimental setup provided the necessary data for the characterization of DAHOM. A fourth order polynomial equation provided excellent fit (R square >0.999. DAHOM demonstrated high repeatability (Cronbach’s alpha ≥0.997; intraclass correlation coefficient ≥0.987 and an adequate level of

  19. Digital immunohistochemistry wizard: image analysis-assisted stereology tool to produce reference data set for calibration and quality control.

    Science.gov (United States)

    Plancoulaine, Benoît; Laurinaviciene, Aida; Meskauskas, Raimundas; Baltrusaityte, Indra; Besusparis, Justinas; Herlin, Paulette; Laurinavicius, Arvydas

    2014-01-01

    Digital image analysis (DIA) enables better reproducibility of immunohistochemistry (IHC) studies. Nevertheless, accuracy of the DIA methods needs to be ensured, demanding production of reference data sets. We have reported on methodology to calibrate DIA for Ki67 IHC in breast cancer tissue based on reference data obtained by stereology grid count. To produce the reference data more efficiently, we propose digital IHC wizard generating initial cell marks to be verified by experts. Digital images of proliferation marker Ki67 IHC from 158 patients (one tissue microarray spot per patient) with an invasive ductal carcinoma of the breast were used. Manual data (mD) were obtained by marking Ki67-positive and negative tumour cells, using a stereological method for 2D object enumeration. DIA was used as an initial step in stereology grid count to generate the digital data (dD) marks by Aperio Genie and Nuclear algorithms. The dD were collected into XML files from the DIA markup images and overlaid on the original spots along with the stereology grid. The expert correction of the dD marks resulted in corrected data (cD). The percentages of Ki67 positive tumour cells per spot in the mD, dD, and cD sets were compared by single linear regression analysis. Efficiency of cD production was estimated based on manual editing effort. The percentage of Ki67-positive tumor cells was in very good agreement in the mD, dD, and cD sets: regression of cD from dD (R2=0.92) reflects the impact of the expert editing the dD as well as accuracy of the DIA used; regression of the cD from the mD (R2=0.94) represents the consistency of the DIA-assisted ground truth (cD) with the manual procedure. Nevertheless, the accuracy of detection of individual tumour cells was much lower: in average, 18 and 219 marks per spot were edited due to the Genie and Nuclear algorithm errors, respectively. The DIA-assisted cD production in our experiment saved approximately 2/3 of manual marking. Digital IHC wizard

  20. Digital books.

    Science.gov (United States)

    Wink, Diane M

    2011-01-01

    In this bimonthly series, the author examines how nurse educators can use the Internet and Web-based computer technologies such as search, communication, and collaborative writing tools; social networking and social bookmarking sites; virtual worlds; and Web-based teaching and learning programs. This article describes digital books.

  1. INCORPORATION OF HUMAN FACTORS ENGINEERING ANALYSES AND TOOLS INTO THE DESIGN PROCESS FOR DIGITAL CONTROL ROOM UPGRADES

    International Nuclear Information System (INIS)

    O'HARA, J.M.; BROWN, W.

    2004-01-01

    Many nuclear power plants are modernizing with digital instrumentation and control systems and computer-based human-system interfaces (HSIs). The purpose of this paper is to summarize the human factors engineering (HFE) activities that can help to ensure that the design meets personnel needs. HFE activities should be integrated into the design process as a regular part of the engineering effort of a plant modification. The HFE activities will help ensure that human performance issues are addressed, that new technology supports task performance, and that the HSIs are designed in a manner that is compatible with human physiological, cognitive and social characteristics

  2. Picture archiving and communications systems in radiation oncology (PACSRO): tools for a physician-based digital image review system

    International Nuclear Information System (INIS)

    McGee, K.P.; Das, I.J.; Fein, D.A.; Martin, E.E.; Schultheiss, T.E.; Hanks, G.E.

    1995-01-01

    Digital imaging is becoming more and more important in the diagnosis, staging, and treatment of patients in radiation oncology. In order to facilitate the most efficient interface of this technology to physicians and other users of this information, a medical image display system (MID) has been developed at the Fox Chase Cancer Center (FCCC). The system runs on 20 personal computers situated in physicians offices as well as a modified system located in the radiation oncology conference room. Access to CT, MRI, and EPID information is achieved through an Ethernet connection to the hospital picture archiving and communications system (PACS). Over a 1-year period a total of 503 patients and 3845 images have been stored on the system. Physician approval using the MID system (without conventional films) was performed on 106 patients. Of these, 22%, 16%, 11%, 10%, and 9% consisted of breast, prostate, pelvic, lung, and head and neck patients, respectively. Digital images sent from a variety of image sources to the MID system take up to 15 s to process and format while image access and display can take 2-5 s, dependent upon image size and speed of the host computer

  3. EVALUATION AND DEVELOPMENT OF E-LEARNING TOOLS AND METHODS IN DIGITAL PHOTOGRAMMETRY AND REMOTE SENSING FOR NON EXPERTS FROM ACADEMIA AND INDUSTRY

    Directory of Open Access Journals (Sweden)

    E. Gülch

    2012-07-01

    Full Text Available There does already exist a wide variety of tutorials and on-line courses on Photogrammetry and Remote Sensing very often used in academia. Many of them are still rather static and tedious or target high-knowledge learners. E-learning is, however, increasingly applied by many organizations and companies for life-long learning (like e.g. the EduServ courses of EuroSDR, but also for training of resellers and in order to save the expenses and time of travelling. A new issue of this project when taking into account the ethnic mentality in some countries like Saudi Arabia where it is impossible to mix the females and males at any institution type or for instance to teach ladies by a male teacher face to face, many academic workshops have been done separately twice by foreign organizations to adapt this situation. This paper will focus on these issues and present experiences gathered from a Master Thesis on "E-learning in Digital Photogrammetry and Remote Sensing for Non Experts using Moodle" at HFT Stuttgart in co-operation with a software vendor and a reseller and experiences from a current European Tempus IV project GIDEC (Geographic information technology for sustainable development in Eastern neighouring countries. The aim of this research is to provide an overview on available methods and tools and classify and judge their feasibility for the above mentioned scenarios. A more detailed description is given on the development of e-learning applications for Digital Photogrammetry and Remote Sensing using the open source package Moodle as platform. A first item covers the experiences from setting up and handling of Moodle for non-experts. The major emphasis is then on developing and analyzing some few case studies for lectures, exercises, and software training in the fields of Digital Photogrammetry and Remote Sensing. Feedback from students and company staff will be evaluated and incorporated in an improved design and sample implementation. A

  4. Evaluation and Development of E-Learning Tools and Methods in Digital Photogrammetry and Remote Sensing for Non Experts from Academia and Industry

    Science.gov (United States)

    Gülch, E.; Al-Ghorani, N.; Quedenfeldt, B.; Braun, J.

    2012-07-01

    There does already exist a wide variety of tutorials and on-line courses on Photogrammetry and Remote Sensing very often used in academia. Many of them are still rather static and tedious or target high-knowledge learners. E-learning is, however, increasingly applied by many organizations and companies for life-long learning (like e.g. the EduServ courses of EuroSDR), but also for training of resellers and in order to save the expenses and time of travelling. A new issue of this project when taking into account the ethnic mentality in some countries like Saudi Arabia where it is impossible to mix the females and males at any institution type or for instance to teach ladies by a male teacher face to face, many academic workshops have been done separately twice by foreign organizations to adapt this situation. This paper will focus on these issues and present experiences gathered from a Master Thesis on "E-learning in Digital Photogrammetry and Remote Sensing for Non Experts using Moodle" at HFT Stuttgart in co-operation with a software vendor and a reseller and experiences from a current European Tempus IV project GIDEC (Geographic information technology for sustainable development in Eastern neighouring countries). The aim of this research is to provide an overview on available methods and tools and classify and judge their feasibility for the above mentioned scenarios. A more detailed description is given on the development of e-learning applications for Digital Photogrammetry and Remote Sensing using the open source package Moodle as platform. A first item covers the experiences from setting up and handling of Moodle for non-experts. The major emphasis is then on developing and analyzing some few case studies for lectures, exercises, and software training in the fields of Digital Photogrammetry and Remote Sensing. Feedback from students and company staff will be evaluated and incorporated in an improved design and sample implementation. A further focus is on free

  5. Digital bedrock mapping at the Geological Survey of Norway: BGS SIGMA tool and in-house database structure

    Science.gov (United States)

    Gasser, Deta; Viola, Giulio; Bingen, Bernard

    2016-04-01

    Since 2010, the Geological Survey of Norway has been implementing and continuously developing a digital workflow for geological bedrock mapping in Norway, from fieldwork to final product. Our workflow is based on the ESRI ArcGIS platform, and we use rugged Windows computers in the field. Three different hardware solutions have been tested over the past 5 years (2010-2015). (1) Panasonic Toughbook CE-19 (2.3 kg), (2) Panasonic Toughbook CF H2 Field (1.6 kg) and (3) Motion MC F5t tablet (1.5 kg). For collection of point observations in the field we mainly use the SIGMA Mobile application in ESRI ArcGIS developed by the British Geological Survey, which allows the mappers to store georeferenced comments, structural measurements, sample information, photographs, sketches, log information etc. in a Microsoft Access database. The application is freely downloadable from the BGS websites. For line- and polygon work we use our in-house database, which is currently under revision. Our line database consists of three feature classes: (1) bedrock boundaries, (2) bedrock lineaments, and (3) bedrock lines, with each feature class having up to 24 different attribute fields. Our polygon database consists of one feature class with 38 attribute fields enabling to store various information concerning lithology, stratigraphic order, age, metamorphic grade and tectonic subdivision. The polygon and line databases are coupled via topology in ESRI ArcGIS, which allows us to edit them simultaneously. This approach has been applied in two large-scale 1:50 000 bedrock mapping projects, one in the Kongsberg domain of the Sveconorwegian orogen, and the other in the greater Trondheim area (Orkanger) in the Caledonian belt. The mapping projects combined collection of high-resolution geophysical data, digital acquisition of field data, and collection of geochronological, geochemical and petrological data. During the Kongsberg project, some 25000 field observation points were collected by eight

  6. Circular Hough transform diffraction analysis: A software tool for automated measurement of selected area electron diffraction patterns within Digital MicrographTM

    International Nuclear Information System (INIS)

    Mitchell, D.R.G.

    2008-01-01

    A software tool (script and plugin) for computing circular Hough transforms (CHT) in Digital Micrograph TM has been developed, for the purpose of automated analysis of selected area electron diffraction patterns (SADPs) of polycrystalline materials. The CHT enables the diffraction pattern centre to be determined with sub-pixel accuracy, regardless of the exposure condition of the transmitted beam or if a beam stop is present. Radii of the diffraction rings can also be accurately measured with sub-pixel precision. If the pattern is calibrated against a known camera length, then d-spacings with an accuracy of better than 1% can be obtained. These measurements require no a priori knowledge of the pattern and very limited user interaction. The accuracy of the CHT is degraded by distortion introduced by the projector lens, and this should be minimised prior to pattern acquisition. A number of optimisations in the CHT software enable rapid processing of patterns; a typical analysis of a 1kx1k image taking just a few minutes. The CHT tool appears robust and is even able to accurately measure SADPs with very incomplete diffraction rings due to texture effects. This software tool is freely downloadable via the Internet

  7. Circular Hough transform diffraction analysis: A software tool for automated measurement of selected area electron diffraction patterns within Digital Micrograph{sup TM}

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, D.R.G. [Institute of Materials and Engineering Science, ANSTO, PMB 1, Menai, NSW 2234 (Australia)], E-mail: drm@ansto.gov.au

    2008-03-15

    A software tool (script and plugin) for computing circular Hough transforms (CHT) in Digital Micrograph{sup TM} has been developed, for the purpose of automated analysis of selected area electron diffraction patterns (SADPs) of polycrystalline materials. The CHT enables the diffraction pattern centre to be determined with sub-pixel accuracy, regardless of the exposure condition of the transmitted beam or if a beam stop is present. Radii of the diffraction rings can also be accurately measured with sub-pixel precision. If the pattern is calibrated against a known camera length, then d-spacings with an accuracy of better than 1% can be obtained. These measurements require no a priori knowledge of the pattern and very limited user interaction. The accuracy of the CHT is degraded by distortion introduced by the projector lens, and this should be minimised prior to pattern acquisition. A number of optimisations in the CHT software enable rapid processing of patterns; a typical analysis of a 1kx1k image taking just a few minutes. The CHT tool appears robust and is even able to accurately measure SADPs with very incomplete diffraction rings due to texture effects. This software tool is freely downloadable via the Internet.

  8. Cultural heritage conservation and communication by digital modeling tools. Case studies: minor architectures of the Thirties in the Turin area

    Science.gov (United States)

    Bruno, A., Jr.; Spallone, R.

    2015-08-01

    Between the end of the twenties and the beginning of the World war two Turin, as the most of the Italian cities, was endowed by the fascist regime of many new buildings to guarantee its visibility and to control the territory: the fascist party main houses and the local ones. The style that was adopted for these constructions was inspired by the guide lines of the Modern movement which were spreading by a generation of architects as Le Corbusier, Gropius, Mendelsohn. At the end of the war many buildings were reconverted to several functions that led heavy transformations not respectful of the original worth, other were demolished. Today it's possible to rebuild those lost architectures in their primal format as it was created by their architects on paper (and in their mind). This process can guarantee the three-dimensional perception, the authenticity of the materials and the placement into the Turin urban tissue, using static and dynamic digital representation systems. The "three-dimensional re-drawing" of the projects, thought as an heuristic practice devoted to reveal the original idea of the project, inserts itself in a digital model of the urban and natural context as we can live it today, to simulate the perceptive effects that the building could stir up today. The modeling skills are the basis to product videos able to explore the relationship between the environment and "re-built architectures", describing with the synthetic movie techniques, the main formal and perceptive roots. The model represents a scientific product that can be involved in a virtual archive of cultural goods to preserve the collective memory of the architectural and urban past image of Turin.

  9. Refining Measures for Assessing Problematic/Addictive Digital Gaming Use in Clinical and Research Settings

    Directory of Open Access Journals (Sweden)

    Kyle Faust

    2015-08-01

    Full Text Available Problematic or addictive digital gaming (including all types of electronic devices can and has had extremely adverse impacts on the lives of many individuals across the world. The understanding of this phenomenon, and the effectiveness of treatment design and monitoring, can be improved considerably by continuing refinement of assessment tools. The present article briefly overviews tools designed to measure problematic or addictive use of digital gaming, the vast majority of which are founded on the Diagnostic and Statistical Manual of Mental Disorders (DSM criteria for other addictive disorders, such as pathological gambling. Although adapting DSM content and strategies for measuring problematic digital gaming has proven valuable, there are some potential issues with this approach. We discuss the strengths and limitations of current methods for measuring problematic or addictive gaming and provide various recommendations that might help in enhancing or supplementing existing tools, or in developing new and even more effective tools.

  10. Refining Measures for Assessing Problematic/Addictive Digital Gaming Use in Clinical and Research Settings.

    Science.gov (United States)

    Faust, Kyle; Faust, David

    2015-08-12

    Problematic or addictive digital gaming (including all types of electronic devices) can and has had extremely adverse impacts on the lives of many individuals across the world. The understanding of this phenomenon, and the effectiveness of treatment design and monitoring, can be improved considerably by continuing refinement of assessment tools. The present article briefly overviews tools designed to measure problematic or addictive use of digital gaming, the vast majority of which are founded on the Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria for other addictive disorders, such as pathological gambling. Although adapting DSM content and strategies for measuring problematic digital gaming has proven valuable, there are some potential issues with this approach. We discuss the strengths and limitations of current methods for measuring problematic or addictive gaming and provide various recommendations that might help in enhancing or supplementing existing tools, or in developing new and even more effective tools.

  11. Quantitative Light-induced Fluorescence-Digital as an oral hygiene evaluation tool to assess plaque accumulation and enamel demineralization in orthodontics.

    Science.gov (United States)

    Miller, Cara C; Burnside, Girvan; Higham, Susan M; Flannigan, Norah L

    2016-11-01

      To assess the use of Quantitative Light-induced Fluorescence-Digital as an oral hygiene evaluation tool during orthodontic treatment.   In this prospective, randomized clinical trial, 33 patients undergoing fixed orthodontic appliance treatment were randomly allocated to receive oral hygiene reinforcement at four consecutive appointments using either white light (WL) or Quantitative Light-induced Fluorescence-Digital (QLF) images, taken with a device, as visual aids. Oral hygiene was recorded assessing the QLF images for demineralization, by fluorescence loss (ΔF), and plaque coverage (ΔR30). A debriefing questionnaire ascertained patient perspectives.   There were no significant differences in demineralization (P  =  .56) or plaque accumulation (P  =  .82) between the WL and QLF groups from T0 to T4. There was no significant reduction in demineralization, ΔF, in the WL, or the QLF group from T0-T4 (P > .05); however, there was a significant reduction in ΔR30 plaque scores (P orthodontics. Oral hygiene reinforcement at consecutive appointments using WL or QLF images as visual aids is effective in reducing plaque coverage. In terms of clinical benefits, QLF and WL images are of similar effectiveness; however, patients preferred the QLF images.

  12. Development of a full waveform digital sonic tool and its field application; Full wave onpa kenso sochi no kaihatsu to genchi tekiyo

    Energy Technology Data Exchange (ETDEWEB)

    Inazaki, T [Geological Survey of Japan, Tsukuba (Japan); Kurahashi, T [Public Works Research Institute, Tsukuba (Japan); Goebuchi, T [OYO Corp., Tokyo (Japan)

    1997-10-22

    Full waveform digital sonic tool (OYO) has been developed for the purpose of accurately measuring geophysical anomalies in the rockbed containing cracks, and its performance is evaluated by comparing its measurements with those obtained by the conventional sonic logging device (DBM). Modification involves the following. While gain is fixed in the DBM, it is variable in a times10-times200 range in the OYO. Analog transfer:ground surface A/D in the DBM is replaced by digital transfer:intra-probe A/D in the OYO. In the DBM, only a special program running on the MS-DOS can analyze waveform data but, in the OYO, waveforms are recorded in the SEG-Y format enabling the import of the data into generally available waveform processing software. In the OYO, a high-speed communication board is incorporated into the probe, which realizes high-speed communication. There is a very excellent agreement between the two in P-wave velocity distribution as reckoned from the initial run. Regarding the OYO, however, it is pointed out that gain control be performed with the greatest care to prevent waveforms from distortion. 5 figs.

  13. Design of the Digital Sky Survey DA and online system: A case history in the use of computer aided tools for data acquisition system design

    Science.gov (United States)

    Petravick, D.; Berman, E.; Nicinski, T.; Rechenmacher, R.; Oleynik, G.; Pordes, R.; Stoughton, C.

    1991-06-01

    As part of its expanding Astrophysics program, Fermilab is participating in the Digital Sky Survey (DSS). Fermilab is part of a collaboration involving University of Chicago, Princeton University, and the Institute of Advanced Studies (at Princeton). The DSS main results will be a photometric imaging survey and a redshift survey of galaxies and color-selected quasars over pi steradians of the Northern Galactic Cap. This paper focuses on our use of Computer Aided Software Engineering (CASE) in specifying the data system for DSS. Extensions to standard methodologies were necessary to compensate for tool shortcomings and to improve communication amongst the collaboration members. One such important extension was the incorporation of CASE information into the specification document.

  14. Digital photogrammetry

    CERN Document Server

    Egels, Yves

    2003-01-01

    Photogrammetry is the use of photography for surveying primarily and is used for the production of maps from aerial photographs. Along with remote sensing, it represents the primary means of generating data for Geographic Information Systems (GIS). As technology develops, it is becoming easier to gain access to it. The cost of digital photogrammetric workstations are falling quickly and these new tools are therefore becoming accessible to more and more users. Digital Photogrammetry is particularly useful as a text for graduate students in geomantic and is also suitable for people with a good basic scientific knowledge who need to understand photogrammetry, and who wish to use the book as a reference.

  15. SU-F-J-204: Carbon Digitally Reconstructed Radiography (CDRR): A GPU Based Tool for Fast and Versatile Carbonimaging Simulation

    International Nuclear Information System (INIS)

    Dias, M F; Seco, J; Baroni, G; Riboldi, M

    2016-01-01

    Purpose: Research in carbon imaging has been growing over the past years, as a way to increase treatment accuracy and patient positioning in carbon therapy. The purpose of this tool is to allow a fast and flexible way to generate CDRR data without the need to use Monte Carlo (MC) simulations. It can also be used to predict future clinically measured data. Methods: A python interface has been developed, which uses information from CT or 4DCT and thetreatment calibration curve to compute the Water Equivalent Path Length (WEPL) of carbon ions. A GPU based ray tracing algorithm computes the WEPL of each individual carbon traveling through the CT voxels. A multiple peak detection method to estimate high contrast margin positioning has been implemented (described elsewhere). MC simulations have been used to simulate carbons depth dose curves in order to simulate the response of a range detector. Results: The tool allows the upload of CT or 4DCT images. The user has the possibility to selectphase/slice of interested as well as position, angle…). The WEPL is represented as a range detector which can be used to assess range dilution and multiple peak detection effects. The tool also provides knowledge of the minimum energy that should be considered for imaging purposes. The multiple peak detection method has been used in a lung tumor case, showing an accuracy of 1mm in determine the exact interface position. Conclusion: The tool offers an easy and fast way to simulate carbon imaging data. It can be used for educational and for clinical purposes, allowing the user to test beam energies and angles before real acquisition. An analysis add-on is being developed, where the used will have the opportunity to select different reconstruction methods and detector types (range or energy). Fundacao para a Ciencia e a Tecnologia (FCT), PhD Grant number SFRH/BD/85749/2012

  16. SU-F-J-204: Carbon Digitally Reconstructed Radiography (CDRR): A GPU Based Tool for Fast and Versatile Carbonimaging Simulation

    Energy Technology Data Exchange (ETDEWEB)

    Dias, M F [Dipartamento di Elettronica, Informazione e Bioingegneria - DEIB, Politecnico di Milano (Italy); Department of Radiation Oncology, Francis H. Burr Proton Therapy Center Massachusetts General Hospital (MGH), Boston, Massachusetts (United States); Seco, J [Department of Radiation Oncology, Francis H. Burr Proton Therapy Center Massachusetts General Hospital (MGH), Boston, Massachusetts (United States); Baroni, G; Riboldi, M [Dipartamento di Elettronica, Informazione e Bioingegneria - DEIB, Politecnico di Milano (Italy); Bioengineering Unit, Centro Nazionale di Adroterapia Oncologica, Pavia (Italy)

    2016-06-15

    Purpose: Research in carbon imaging has been growing over the past years, as a way to increase treatment accuracy and patient positioning in carbon therapy. The purpose of this tool is to allow a fast and flexible way to generate CDRR data without the need to use Monte Carlo (MC) simulations. It can also be used to predict future clinically measured data. Methods: A python interface has been developed, which uses information from CT or 4DCT and thetreatment calibration curve to compute the Water Equivalent Path Length (WEPL) of carbon ions. A GPU based ray tracing algorithm computes the WEPL of each individual carbon traveling through the CT voxels. A multiple peak detection method to estimate high contrast margin positioning has been implemented (described elsewhere). MC simulations have been used to simulate carbons depth dose curves in order to simulate the response of a range detector. Results: The tool allows the upload of CT or 4DCT images. The user has the possibility to selectphase/slice of interested as well as position, angle…). The WEPL is represented as a range detector which can be used to assess range dilution and multiple peak detection effects. The tool also provides knowledge of the minimum energy that should be considered for imaging purposes. The multiple peak detection method has been used in a lung tumor case, showing an accuracy of 1mm in determine the exact interface position. Conclusion: The tool offers an easy and fast way to simulate carbon imaging data. It can be used for educational and for clinical purposes, allowing the user to test beam energies and angles before real acquisition. An analysis add-on is being developed, where the used will have the opportunity to select different reconstruction methods and detector types (range or energy). Fundacao para a Ciencia e a Tecnologia (FCT), PhD Grant number SFRH/BD/85749/2012.

  17. Permanent foresty plots: a potentially valuable teaching resource in undergraduate biology porgrams for the Caribbean

    Science.gov (United States)

    H. Valles; C.M.S. Carrington

    2016-01-01

    There has been a recent proposal to change the way that biology is taught and learned in undergraduate biology programs in the USA so that students develop a better understanding of science and the natural world. Here, we use this new, recommended teaching– learning framework to assert that permanent forestry plots could be a valuable tool to help develop biology...

  18. Students’ digital learning environments

    DEFF Research Database (Denmark)

    Caviglia, Francesco; Dalsgaard, Christian; Davidsen, Jacob

    2018-01-01

    The objective of the paper is to examine the nature of students’ digital learning environments to understand the interplay of institutional systems and tools that are managed by the students themselves. The paper is based on a study of 128 students’ digital learning environments. The objectives...... used tools in the students’ digital learning environments are Facebook, Google Drive, tools for taking notes, and institutional systems. Additionally, the study shows that the tools meet some very basic demands of the students in relation to collaboration, communication, and feedback. Finally...... of the study are 1) to provide an overview of tools for students’ study activities, 2) to identify the most used and most important tools for students and 3) to discover which activities the tools are used for. The empirical study reveals that the students have a varied use of digital media. Some of the most...

  19. Ancient Artifacts vs. Digital Artifacts: New Tools for Unmasking the Sale of Illicit Antiquities on the Dark Web

    Directory of Open Access Journals (Sweden)

    Katie A. Paul

    2018-03-01

    Full Text Available Since the rise of the Islamic State of Iraq and Syria (ISIS, also known as Daesh and ISIL in 2014, antiquities have been a widely publicized source of funding for what has become one of the most technologically savvy terrorist organizations of the modern era. The globalization of technology and rise of popularity in cryptocurrencies has changed the face of black-market trade and the actors that carry out these crimes. While art and antiquities have long served as a market with susceptibilities to laundering, the emergence of Dark Web markets, identification-masking software, and untraceable cryptocurrencies such as Bitcoin have opened new doors to potential vulnerabilities. The anonymity that is offered by these technologies acts as a roadblock for authorities, while attracting the likes of terrorists and transnational criminals. Investigative research using cyber security platforms to identify digital artifacts connected to potential traffickers provides the opportunity to unmask the seemingly untraceable actors behind these activities. The evidence of illicit antiquities trafficking on the Dark Web displayed in this article can generate a new discussion on how and where to study black-market antiquities to gain needed insight into combating the illicit trade online and the transnational criminal groups it may finance.

  20. Digital mineral logging system

    International Nuclear Information System (INIS)

    West, J.B.

    1980-01-01

    A digital mineral logging system acquires data from a mineral logging tool passing through a borehole and transmits the data uphole to an electronic digital signal processor. A predetermined combination of sensors, including a deviometer, is located in a logging tool for the acquisition of the desired data as the logging tool is raised from the borehole. Sensor data in analog format is converted in the logging tool to a digital format and periodically batch transmitted to the surface at a predetermined sampling rate. An identification code is provided for each mineral logging tool, and the code is transmitted to the surface along with the sensor data. The self-identifying tool code is transmitted to the digital signal processor to identify the code against a stored list of the range of numbers assigned to that type of tool. The data is transmitted up the d-c power lines of the tool by a frequency shift key transmission technique. At the surface, a frequency shift key demodulation unit transmits the decoupled data to an asynchronous receiver interfaced to the electronic digital signal processor. During a recording phase, the signals from the logging tool are read by the electronic digital signal processor and stored for later processing. During a calculating phase, the stored data is processed by the digital signal processor and the results are outputted to a printer or plotter, or both

  1. Two ways of acquiring environmental knowledge: by encountering living animals at a beehive and by observing bees via digital tools

    Science.gov (United States)

    Schönfelder, Mona L.; Bogner, Franz X.

    2017-04-01

    Pollinating animals are profoundly affected by the current loss of biodiversity, a problem that is of concern to science, policy-makers and the public. One possibility to raise awareness for pollinator conservation is education. Unfortunately, insects such as bees are often perceived as frightening creatures; a negative emotion that may hinder successful learning processes. Thus, any educational initiative must conquer this obstacle and promote conservational knowledge. Using a quasi-experimental design, we evaluated the effectiveness of an educational programme using two student-centred learning approaches: One by encountering living honeybees (Apis mellifera) at a beehive (N = 162), the other by using an eLearning tool connected to a remote beehive (N = 192). We monitored secondary school students' environmentally relevant knowledge of bees, their environmental attitudes and their perception of bees in regard to conservation and dangerousness. The results indicate that both approaches lead to the acquisition of conservational knowledge in the short and medium term. Direct experiences with nature are regarded as crucial, but using an eLearning tool in environmental education constitutes an outstanding alternative to acquire knowledge. Adolescents with low 'green' attitudes responded positively to the online beehive, and the perceived danger of bees played no role in the learning process.

  2. An evaluation of automated GIS tools for delineating karst sinkholes and closed depressions from 1-meter LIDAR-derived digital elevation data

    Science.gov (United States)

    Doctor, Daniel H.; Young, John A.

    2013-01-01

    LiDAR (Light Detection and Ranging) surveys of karst terrains provide high-resolution digital elevation models (DEMs) that are particularly useful for mapping sinkholes. In this study, we used automated processing tools within ArcGIS (v. 10.0) operating on a 1.0 m resolution LiDAR DEM in order to delineate sinkholes and closed depressions in the Boyce 7.5 minute quadrangle located in the northern Shenandoah Valley of Virginia. The results derived from the use of the automated tools were then compared with depressions manually delineated by a geologist. Manual delineation of closed depressions was conducted using a combination of 1.0 m DEM hillshade, slopeshade, aerial imagery, and Topographic Position Index (TPI) rasters. The most effective means of visualizing depressions in the GIS was using an overlay of the partially transparent TPI raster atop the slopeshade raster at 1.0 m resolution. Manually identified depressions were subsequently checked using aerial imagery to screen for false positives, and targeted ground-truthing was undertaken in the field. The automated tools that were utilized include the routines in ArcHydro Tools (v. 2.0) for prescreening, evaluating, and selecting sinks and depressions as well as thresholding, grouping, and assessing depressions from the TPI raster. Results showed that the automated delineation of sinks and depressions within the ArcHydro tools was highly dependent upon pre-conditioning of the DEM to produce "hydrologically correct" surface flow routes. Using stream vectors obtained from the National Hydrologic Dataset alone to condition the flow routing was not sufficient to produce a suitable drainage network, and numerous artificial depressions were generated where roads, railways, or other manmade structures acted as flow barriers in the elevation model. Additional conditioning of the DEM with drainage paths across these barriers was required prior to automated 2delineation of sinks and depressions. In regions where the DEM

  3. A imagem digital como dispositivo de apropriação dos modos de subjetivação contemporâneos "La imagen digital como dispositivo de apropiación de los modos de subjetividad contemporáneos" The digital image as a tool for the assumption of contemporary subjectivizing methods

    Directory of Open Access Journals (Sweden)

    Patrícia Beatriz Argôllo Gomes Kirst

    2010-06-01

    Full Text Available O artigo "A imagem digital como dispositivo de apropriação dos modos de subjetivação contemporâneos" trata de problematizar a imagem digital como emblema dos atuais modos de produção de subjetividade. Na imagem digital, o tempo é resignificado na despotencialização de seus aspectos acumulativos vindo a ser integrado a uma temporalidade transitória e de confluência de encontros. A discussão proposta expõe dimensões do conceito de virtual afirmando-o como potência imaginativa, fruto de agenciamentos múltiplos e heterogêneos entre arte, tecnologia e ciência fundando novas interações entre sujeito e mundo. É justamente, desde uma leitura da realidade como pura transformação, não existindo essências e sim estados de coisas, que a simulação se torna adequada para pensar as relações entre imagem digital e subjetividade.El artículo "La imagen digital como dispositivo de apropiación de los modos de subjetividad contemporáneos" trata de problematizar la imagen digital como emblema de los actuales modo de producción de subjetividad. En la imagen digital, el tiempo es otra vez significado en la pérdida de potencia de sus aspectos acumulativos siendo integrado a una temporalidad transitoria y de confluencia de encuentros. La discusión propuesta expone dimensiones del concepto de virtual afirmándolo como potencia imaginativa, fruto de agenciamentos múltiplos y heterogéneos entre arte, tecnología y ciencia fundando nuevas interacciones entre sujeto y mundo. Es justamente, desde una lectura de la realidad como pura transformación, no existiendo esencias y sí estados de cosas que la simulación se torna adecuada para pensar las relaciones entre imagen digital y subjetividad.The article "The digital image as a tool for the assumption of contemporary subjectivizing methods" brings into the matter the digital image as the symbol of the current ways we produce subjectivity. In the digital image, time is redefined in the

  4. Applicability of computer-aided comprehensive tool (LINDA: LINeament Detection and Analysis) and shaded digital elevation model for characterizing and interpreting morphotectonic features from lineaments

    Science.gov (United States)

    Masoud, Alaa; Koike, Katsuaki

    2017-09-01

    Detection and analysis of linear features related to surface and subsurface structures have been deemed necessary in natural resource exploration and earth surface instability assessment. Subjectivity in choosing control parameters required in conventional methods of lineament detection may cause unreliable results. To reduce this ambiguity, we developed LINDA (LINeament Detection and Analysis), an integrated tool with graphical user interface in Visual Basic. This tool automates processes of detection and analysis of linear features from grid data of topography (digital elevation model; DEM), gravity and magnetic surfaces, as well as data from remote sensing imagery. A simple interface with five display windows forms a user-friendly interactive environment. The interface facilitates grid data shading, detection and grouping of segments, lineament analyses for calculating strike and dip and estimating fault type, and interactive viewing of lineament geometry. Density maps of the center and intersection points of linear features (segments and lineaments) are also included. A systematic analysis of test DEMs and Landsat 7 ETM+ imagery datasets in the North and South Eastern Deserts of Egypt is implemented to demonstrate the capability of LINDA and correct use of its functions. Linear features from the DEM are superior to those from the imagery in terms of frequency, but both linear features agree with location and direction of V-shaped valleys and dykes and reference fault data. Through the case studies, LINDA applicability is demonstrated to highlight dominant structural trends, which can aid understanding of geodynamic frameworks in any region.

  5. Monitoring Accessibility Services in Digital Television

    Directory of Open Access Journals (Sweden)

    Francisco Utray

    2012-01-01

    Full Text Available This paper addresses methodology and tools applied to the monitoring of accessibility services in digital television at a time when the principles of accessibility and design are being considered in all new audiovisual media communication services. The main objective of this research is to measure the quality and quantity of existing accessibility services offered by digital terrestrial television (DTT. The preliminary results, presented here, offer the development of a prototype for automatic monitoring and a methodology for obtaining quality measurements, along with the conclusions drawn by initial studies carried out in Spain. The recent approval of the UN Convention on the Rights of Persons with Disabilities gives special relevance to this research because it provides valuable guidelines to help set the priorities to improve services currently available to users.

  6. The use of digital diplomacy as a tool for symbolic violence: Framing analysis of Russian–Turkish relations on Twitter

    Directory of Open Access Journals (Sweden)

    Sherzod Arapov

    2017-03-01

    Full Text Available Symbols are primarily used by diplomatic actors to better project the core ideas behind certain political initiatives. Author defines symbolic violence as a practice, manifested in deliberate action of a given diplomatic actor to damage his adversary’s reputation, status and dignity through a certain set of actions, such as linguistic violence (e.g., insult, intimidation, disobeying diplomatic tact and so forth. This study aims to examine whether it is possible to establish how a change in practice (in the example of Russia–Turkey relations before and after the downing of the Russian fighter plane Su-24 originates, utilising an alternative practice – theoretical toolkit – contradictory framing of the past. To achieve this, the author examines what potentially might cause a change in practice in the Russia–Turkish case and to what extent the potential of social media can be harnessed by governments to shape public opinion and influence diplomatic actors’ international reputation. The methodology employed was based on previous practice and framing studies that have perfected the tools necessary for the detection and analysis of frames. In this research, these tools were employed on 140-character-long tweets. Identifying general themes was achieved through thematic analysis, the method for identifying, analyzing and reporting on patterns, or themes, within data corpus. The paper mentions that both Russia and Turkey attempted to narrate each other’s behaviour through framing one another on Twitter focusing on the legitimacy and morality of each other’s policies to limit the opponent’s ability to carry out the latter’s foreign political prerogatives. Moreover, as the Twitter analysis of the Russian and Turkish framing of one another showed, governments can and do harness the potential of using images and words as the weapons of symbolic violence when they attempt to impose their own narration on a given event or situation.

  7. The Use of Digital and Remote Communication Technologies as a Tool for Multiple Sclerosis Management: Narrative Review

    Science.gov (United States)

    Marziniak, Martin; Brichetto, Giampaolo; Feys, Peter; Meyding-Lamadé, Uta; Vernon, Karen

    2018-01-01

    Despite recent advances in multiple sclerosis (MS) care, many patients only infrequently access health care services, or are unable to access them easily, for reasons such as mobility restrictions, travel costs, consultation and treatment time constraints, and a lack of locally available MS expert services. Advances in mobile communications have led to the introduction of electronic health (eHealth) technologies, which are helping to improve both access to and the quality of health care services. As the Internet is now readily accessible through smart mobile devices, most people can take advantage of eHealth apps. The development of digital applications and remote communication technologies for patients with MS has increased rapidly in recent years. These apps are intended to complement traditional in-clinic approaches and can bring significant benefits to both patients with MS and health care providers (HCPs). For patients, such eHealth apps have been shown to improve outcomes and increase access to care, disease information, and support. These apps also help patients to participate actively in self-management, for example, by tracking adherence to treatment, changes in bladder and bowel habits, and activity and mood. For HCPs, MS eHealth solutions can simplify the multidisciplinary approaches needed to tailor MS management strategies to individual patients; facilitate remote monitoring of patient symptoms, adverse events, and outcomes; enable the efficient use of limited resources and clinic time; and potentially allow more timely intervention than is possible with scheduled face-to-face visits. These benefits are important because MS is a long-term, multifaceted chronic condition that requires ongoing monitoring, assessment, and management. We identified in the literature 28 eHealth solutions for patients with MS that fall within the four categories of screening and assessment, disease monitoring and self-management, treatment and rehabilitation, and advice and

  8. The Use of Digital and Remote Communication Technologies as a Tool for Multiple Sclerosis Management: Narrative Review.

    Science.gov (United States)

    Marziniak, Martin; Brichetto, Giampaolo; Feys, Peter; Meyding-Lamadé, Uta; Vernon, Karen; Meuth, Sven G

    2018-04-24

    Despite recent advances in multiple sclerosis (MS) care, many patients only infrequently access health care services, or are unable to access them easily, for reasons such as mobility restrictions, travel costs, consultation and treatment time constraints, and a lack of locally available MS expert services. Advances in mobile communications have led to the introduction of electronic health (eHealth) technologies, which are helping to improve both access to and the quality of health care services. As the Internet is now readily accessible through smart mobile devices, most people can take advantage of eHealth apps. The development of digital applications and remote communication technologies for patients with MS has increased rapidly in recent years. These apps are intended to complement traditional in-clinic approaches and can bring significant benefits to both patients with MS and health care providers (HCPs). For patients, such eHealth apps have been shown to improve outcomes and increase access to care, disease information, and support. These apps also help patients to participate actively in self-management, for example, by tracking adherence to treatment, changes in bladder and bowel habits, and activity and mood. For HCPs, MS eHealth solutions can simplify the multidisciplinary approaches needed to tailor MS management strategies to individual patients; facilitate remote monitoring of patient symptoms, adverse events, and outcomes; enable the efficient use of limited resources and clinic time; and potentially allow more timely intervention than is possible with scheduled face-to-face visits. These benefits are important because MS is a long-term, multifaceted chronic condition that requires ongoing monitoring, assessment, and management. We identified in the literature 28 eHealth solutions for patients with MS that fall within the four categories of screening and assessment, disease monitoring and self-management, treatment and rehabilitation, and advice and

  9. Students’ digital learning environments

    DEFF Research Database (Denmark)

    Caviglia, Francesco; Dalsgaard, Christian; Davidsen, Jacob

    2018-01-01

    of the study are 1) to provide an overview of tools for students’ study activities, 2) to identify the most used and most important tools for students and 3) to discover which activities the tools are used for. The empirical study reveals that the students have a varied use of digital media. Some of the most......, the study shows that most of the important tools are not related to the systems provided by the educational institutions. Based on the study, the paper concludes with a discussion of how institutional systems connect to the other tools in the students’ practices, and how we can qualify students’ digital......The objective of the paper is to examine the nature of students’ digital learning environments to understand the interplay of institutional systems and tools that are managed by the students themselves. The paper is based on a study of 128 students’ digital learning environments. The objectives...

  10. Uso de software como ferramenta pedagógica no processo de ensino-aprendizagem da mamografia digital Educational software as a tool for teaching & learning of digital mammography

    Directory of Open Access Journals (Sweden)

    Simone Elias

    2009-04-01

    Full Text Available OBJETIVO: Avaliar o impacto sobre o treinamento de residentes utilizando uma ferramenta computacional dedicada à avaliação do desempenho da leitura de imagens radiológicas convencionais e digitais. MATERIAIS E MÉTODOS: O treinamento foi realizado no Laboratório de Qualificação de Imagens Médicas (QualIM. Os residentes de radiologia efetuaram cerca de 1.000 leituras de um total de 60 imagens obtidas de um simulador estatístico (Alvim® que apresenta fibras e microcalcificações de dimensões variadas. O desempenho dos residentes na detecção dessas estruturas foi avaliado por meio de parâmetros estatísticos. RESULTADOS: Os resultados da probabilidade de detectabilidade foram de 0,789 e 0,818 para os sistemas convencional e digital, respectivamente. As taxas de falso-positivos foram de 8% e 6% e os valores de verdadeiro-positivos, de 66% e 70%, respectivamente. O valor de kappa total foi 0,553 para as leituras em negatoscópio e 0,615 em monitor. A área sob a curva ROC foi de 0,716 para leitura em filme e 0,810 para monitor. CONCLUSÃO: O treinamento proposto mostrou ser efetivo e apresentou impacto positivo sobre o desempenho dos residentes, constituindo-se em interessante ferramenta pedagógica. Os resultados sugerem que o método de treinamento baseado na leitura de simuladores pode produzir um melhor desempenho dos profissionais na interpretação das imagens mamográficas.OBJECTIVE: The present study was aimed at evaluating the performance of residents trained in the reading of conventional and digital mammography images with a specific computational tool. MATERIALS AND METHODS: The training was accomplished in the Laboratory of Medical Images Qualification (QualIM - Laboratório de Qualificação de Imagens Médicas. Residents in radiology performed approximately 1,000 readings of a set of 60 images acquired from a statistical phantom (Alvim® presenting microcalcifications and fibers with different sizes. The analysis of the

  11. Validation of digital photographs, as a tool in 24-h recall, for the improvement of dietary assessment among rural populations in developing countries

    Science.gov (United States)

    2012-01-01

    Background Improvement of traditional methods for dietary assessment is necessary, especially in rural areas where it is more difficult to succeed with self-reporting methods. This study presents and validates a method for improving accuracy when measuring food and nutrient intake of individuals in rural areas. It is called the “Food photography 24-h recall method” (FP 24-hR) and is a modified 24-h recall with the addition of a digital food photography record and a photo atlas. Methods The study was carried out in a rural area in the tropical region of Bolivia; 45 women participated. Validation of the method was made by comparing it with a reference method, the Weighed Food Record (WFR). During the FP 24-hR, digital photographs were taken by the subjects of all food consumed during a day and a 24-h recall questionnaire was conducted by an interviewer. An estimate of the amount of food consumed was made using a photo atlas and the photographs taken by the subjects. For validation, comparison was made between the calculations, by both methods, of the levels of food, and nutrient, intake. Results The comparison was made in 10 food categories; most of which were somewhat underestimated from −2.3% (cassava) to −6.8% (rice), except for beverages (+1.6%) and leafy vegetables (+8.7%), which were overestimated. Spearman’s correlation coefficients were highly significant (r from 0.75 for eggs to 0.98 for potato and cassava). Nutrient intakes calculated with data from both methods showed small differences from -0.90% (vitamin C) to -5.98% (fat). Although all nutrients were somewhat underestimated, Pearson′s coefficients are high (>0.93 for all) and statistically significant. Bland Altman analysis showed that differences between both methods were random and did not exhibit any systematic bias over levels of food and nutrient intake, with acceptable 95% limits of agreement. Conclusion The FP 24-hR exhibits acceptable differences when compared with a WFR, digital

  12. Accuracy and Feasibility of an Android-Based Digital Assessment Tool for Post Stroke Visual Disorders—The StrokeVision App

    Directory of Open Access Journals (Sweden)

    Terence J. Quinn

    2018-03-01

    detection of a stroke-related field defect. This compares with 79% sensitivity and 88% specificity for StrokeVision digital assessment.ConclusionStrokeVision shows promise as a screening tool for visual complications in the acute phase of stroke. The app is at least as good as usual screening and offers other functionality that may make it attractive for use in acute stroke.Clinical Trial Registrationhttps://ClinicalTrials.gov/ct2/show/NCT02539381.

  13. Accuracy and Feasibility of an Android-Based Digital Assessment Tool for Post Stroke Visual Disorders-The StrokeVision App.

    Science.gov (United States)

    Quinn, Terence J; Livingstone, Iain; Weir, Alexander; Shaw, Robert; Breckenridge, Andrew; McAlpine, Christine; Tarbert, Claire M

    2018-01-01

    . This compares with 79% sensitivity and 88% specificity for StrokeVision digital assessment. StrokeVision shows promise as a screening tool for visual complications in the acute phase of stroke. The app is at least as good as usual screening and offers other functionality that may make it attractive for use in acute stroke. https://ClinicalTrials.gov/ct2/show/NCT02539381.

  14. Digital broadcasting

    International Nuclear Information System (INIS)

    Park, Ji Hyeong

    1999-06-01

    This book contains twelve chapters, which deals with digitization of broadcast signal such as digital open, digitization of video signal and sound signal digitization of broadcasting equipment like DTPP and digital VTR, digitization of equipment to transmit such as digital STL, digital FPU and digital SNG, digitization of transmit about digital TV transmit and radio transmit, digital broadcasting system on necessity and advantage, digital broadcasting system abroad and Korea, digital broadcasting of outline, advantage of digital TV, ripple effect of digital broadcasting and consideration of digital broadcasting, ground wave digital broadcasting of DVB-T in Europe DTV in U.S.A and ISDB-T in Japan, HDTV broadcasting, satellite broadcasting, digital TV broadcasting in Korea, digital radio broadcasting and new broadcasting service.

  15. Canadian community pharmacists' use of digital health technologies in practice.

    Science.gov (United States)

    Leung, Valerie; Tharmalingam, Sukirtha; Cooper, Janet; Charlebois, Maureen

    2016-01-01

    In 2010, a pan-Canadian study on the current state and benefits of provincial drug information systems (DIS) found that substantial benefits were being realized and that pharmacists perceived DIS to be a valuable tool in the evolving models of pharmacy practice. To understand changes in digital health and the impact on practice since that time, a survey of community pharmacists in Canada was conducted. In 2014, Canada Health Infoway (Infoway) and the Canadian Pharmacists Association (CPhA) invited community pharmacists to participate in a Web-based survey to understand their use and perceived benefits of digital health in practice. The survey was open from April 15 to May 12, 2014. Of the 447 survey responses, almost all used some form of digital health in practice. Those with access to DIS and provincial laboratory information systems (LIS) reported increased productivity and better quality of care. Those without access to these systems would overwhelmingly like access. There have been significant advances in digital health and community pharmacy practice over the past several years. In addition to digital health benefits in the areas of productivity and quality of care, pharmacists are also experiencing substantial benefits in areas related to recently expanded scope of practice activities such as ordering lab tests. Community pharmacists frequently use digital health in practice and recognize the benefits of these technologies. Digital health is, and will continue to be, a key enabler for practice transformation and improved quality of care. Can Pharm J (Ott) 2016;149:xx-xx.

  16. New Therapies Offer Valuable Options for Patients with Melanoma

    Science.gov (United States)

    Two phase III clinical trials of new therapies for patients with metastatic melanoma presented in June at the 2011 ASCO conference confirmed that vemurafenib and ipilimumab (Yervoy™) offer valuable new options for the disease.

  17. Semantic Document Image Classification Based on Valuable Text Pattern

    Directory of Open Access Journals (Sweden)

    Hossein Pourghassem

    2011-01-01

    Full Text Available Knowledge extraction from detected document image is a complex problem in the field of information technology. This problem becomes more intricate when we know, a negligible percentage of the detected document images are valuable. In this paper, a segmentation-based classification algorithm is used to analysis the document image. In this algorithm, using a two-stage segmentation approach, regions of the image are detected, and then classified to document and non-document (pure region regions in the hierarchical classification. In this paper, a novel valuable definition is proposed to classify document image in to valuable or invaluable categories. The proposed algorithm is evaluated on a database consisting of the document and non-document image that provide from Internet. Experimental results show the efficiency of the proposed algorithm in the semantic document image classification. The proposed algorithm provides accuracy rate of 98.8% for valuable and invaluable document image classification problem.

  18. Valuable Internet Advertising and Customer Satisfaction Cycle(VIACSC)

    OpenAIRE

    Muhammad Awais; Tanzila Samin; Muhammad Bilal

    2012-01-01

    Now-a-days it is very important for the business persons to attract their target customers towards their products through valuable mode of promotion and communication. Increasing use of World Wide Web has completely changed the scenario of business sector. Customized products and services, customers preferences, @ and dot com craze have elevated the importance of internet advertising. This research paper investigates valuable internet advertising which will help to enhance the value of intern...

  19. Insights of School Head About Marketing Education Services Through Digital Media

    Directory of Open Access Journals (Sweden)

    Samer Iqbal

    2016-06-01

    Full Text Available This study mainly focuses on the insights of a private school’s head pertaining to the use of digital media in educational marketing. The qualitative research paradigm was chosen for this study and in depth phenomenological interview was conducted from a head of a private school. Two themes were extracted from the data: Marketing educational services through digital media and its challenges, and digital media tool for marketing education services. The study revealed that the school head perceived the digital media to be cost-effective marketing strategy that was multidimensional and value-driven, but due to lack of awareness, skills, attitude, and sense of maturity among stakeholders, digital media was ignored and was not much used as a cost-effective marketing tool. Nevertheless, it is proposed that by hiring marketing personnel to promote services professionally, by aligning their strategies according to the demands of their customers, and by inviting customers’ voice on digital platforms, digital media can become a cost-effective and a valuable tool for mercerization of education.

  20. Web Resources and Tools for Slovenian with a Focus on the Slovenian-English Language Infrastructure: Dictionaries in the Digital Age

    Directory of Open Access Journals (Sweden)

    Mojca Šorli

    2017-12-01

    Full Text Available The article begins with a presentation of a selection of electronic monolingual and bi/multilingual lexicographic resources and corpora available today to contemporary users of Slovene. The focus is on works combined with English and designed for translation purposes which provide information on the meaning of words and wider lexical units, i.e., e-dictionaries, lexical databases, web translation tools and various corpora. In a separate sub-section the most common translation technologies are presented, together with an evaluation of their role in the modern translation process. Sections 2 and 3 provide a brief outline of the changes that have affected classical dictionary planning, compilation and use in the new digital environment, as well as of the relationship between dictionaries and related resources, such as lexical databases. Some stereotypes regarding dictionary use are identified and, in conclusion, the existing corpus-based databases for the Slovenian-English pair are presented, with a view to determining priorities for the future interlingual infrastructure action plans in Slovenia.

  1. Materials Testing - Digital Ecology

    Directory of Open Access Journals (Sweden)

    Seth Wiley

    2013-03-01

    Full Text Available Access to credible building product performance information throughout the design and construction process is critical to enable project development, vet product selections, ensure as-built quality, and successfully complete construction. This is common knowledge and part of common practice for nearly all parties involved in design and construction. The sources of such information can range from vernacular to formal – from common practice to special reference. The focus of this paper is one of the more formal or specialized information sources, performance testing, as well as how such performance testing information can be better used. This paper’s goals are to familiarize the reader with performance testing and to depict a new kind of valuable informational tool (digital ecology. Reference to pertinent nomenclature, description of a real world example, and detailed description of such an informational tool’s values will be provided.The major content of this paper was developed during project-based work and firm-funded internal research at point b design, ltd. over approximately the previous 4 years. The phrase ‘digital ecology’ as herein used is a new concept proposed by the author. The analysis contained in this paper could be applied to the field of operations and maintenance as it is herein applied to design and construction; however, operations and maintenance is beyond the scope of this paper and may be addressed in future papers. It is my hope that this paper will contribute to tangible and real improvements of the built environment via continued, positive development within academic and professional practice.

  2. Students’ digital learning environments

    DEFF Research Database (Denmark)

    Caviglia, Francesco; Dalsgaard, Christian; Davidsen, Jacob

    2018-01-01

    used tools in the students’ digital learning environments are Facebook, Google Drive, tools for taking notes, and institutional systems. Additionally, the study shows that the tools meet some very basic demands of the students in relation to collaboration, communication, and feedback. Finally...

  3. Changing State Digital Libraries

    Science.gov (United States)

    Pappas, Marjorie L.

    2006-01-01

    Research has shown that state virtual or digital libraries are evolving into websites that are loaded with free resources, subscription databases, and instructional tools. In this article, the author explores these evolving libraries based on the following questions: (1) How user-friendly are the state digital libraries?; (2) How do state digital…

  4. A semi-automated tool for reducing the creation of false closed depressions from a filled LIDAR-derived digital elevation model

    Science.gov (United States)

    Waller, John S.; Doctor, Daniel H.; Terziotti, Silvia

    2015-01-01

    Closed depressions on the land surface can be identified by ‘filling’ a digital elevation model (DEM) and subtracting the filled model from the original DEM. However, automated methods suffer from artificial ‘dams’ where surface streams cross under bridges and through culverts. Removal of these false depressions from an elevation model is difficult due to the lack of bridge and culvert inventories; thus, another method is needed to breach these artificial dams. Here, we present a semi-automated workflow and toolbox to remove falsely detected closed depressions created by artificial dams in a DEM. The approach finds the intersections between transportation routes (e.g., roads) and streams, and then lowers the elevation surface across the roads to stream level allowing flow to be routed under the road. Once the surface is corrected to match the approximate location of the National Hydrologic Dataset stream lines, the procedure is repeated with sequentially smaller flow accumulation thresholds in order to generate stream lines with less contributing area within the watershed. Through multiple iterations, artificial depressions that may arise due to ephemeral flow paths can also be removed. Preliminary results reveal that this new technique provides significant improvements for flow routing across a DEM and minimizes artifacts within the elevation surface. Slight changes in the stream flow lines generally improve the quality of flow routes; however some artificial dams may persist. Problematic areas include extensive road ditches, particularly along divided highways, and where surface flow crosses beneath road intersections. Limitations do exist, and the results partially depend on the quality of data being input. Of 166 manually identified culverts from a previous study by Doctor and Young in 2013, 125 are within 25 m of culverts identified by this tool. After three iterations, 1,735 culverts were identified and cataloged. The result is a reconditioned

  5. An investigation of digital creative of the Chih-Kan-Tower

    Science.gov (United States)

    Lin, Hsiao-Man; Lu, Fang-Chuan; Tsai, J. C.

    2011-10-01

    Utilization of the developed digital archives could stimulate the spirit of humanity and creativity, especially for Chinese people in Taiwan, and also satisfy cultural passion and pursuit of knowledge. Furthermore, this study creates simulated informational digital archives of Tainan Chih-Kan-Tower in order to effectively integrate the multiple unique and useful historical records and information. Examples include Chih-Kan- Tower's historical change and Taiwan's ancient map. The study also creates a three dimension (3D) visualization and a two dimension (2D) motion video which, provided by Google Earth, can enhance the experience of media interaction, improve cultural interaction as well as multi-level knowledge by better understanding . With further research on application of digital archives in multiple facets, the finally developed digital archives have great potential to become a very useful tool to promote the most valuable cultural heritage in the nation.

  6. Digital wine marketing: Social media marketing for the wine industry

    Directory of Open Access Journals (Sweden)

    Viana Natália Andrade

    2016-01-01

    Full Text Available The wine industry recognizes the increasingly relevant role of digital marketing as a valuable and appropriate tool to reach (adult consumers. This paper intends to trace a brief analysis about Digital Wine Marketing and Social Media Marketing contribution for the Wine Industry to increase brand awareness and sales and develop a short guidance to digital marketing as well. When consumers search for wine and wineries on internet they are bombarded with an massive volume of brand messages, meaning that delivering creative, polished content is key if a brand wants to capture people's attention. So, make a good wine is a important part of the work, but after this is necessary to give it the presentation it deserves, communicating accurately to consumers and have in mind that digital marketing activities are in a state of evolutionary development, where new trends are likely to occur rapidly and wineries have to adapt.

  7. Field Trips as Valuable Learning Experiences in Geography Courses

    Science.gov (United States)

    Krakowka, Amy Richmond

    2012-01-01

    Field trips have been acknowledged as valuable learning experiences in geography. This article uses Kolb's (1984) experiential learning model to discuss how students learn and how field trips can help enhance learning. Using Kolb's experiential learning theory as a guide in the design of field trips helps ensure that field trips contribute to…

  8. an assessment of timber trees producing valuable fruits and seeds ...

    African Journals Online (AJOL)

    User

    It is observed that most of the timber trees producing valuable fruits and seeds have low ... sector of the economy by providing major raw materials (saw logs, ... the trees also produce industrial raw materials like latex, ... villagers while avoiding some of the ecological costs of ..... enzymes of rats with carbon tetrachloride.

  9. Ravens reconcile after aggressive conflicts with valuable partners.

    Science.gov (United States)

    Fraser, Orlaith N; Bugnyar, Thomas

    2011-03-25

    Reconciliation, a post-conflict affiliative interaction between former opponents, is an important mechanism for reducing the costs of aggressive conflict in primates and some other mammals as it may repair the opponents' relationship and reduce post-conflict distress. Opponents who share a valuable relationship are expected to be more likely to reconcile as for such partners the benefits of relationship repair should outweigh the risk of renewed aggression. In birds, however, post-conflict behavior has thus far been marked by an apparent absence of reconciliation, suggested to result either from differing avian and mammalian strategies or because birds may not share valuable relationships with partners with whom they engage in aggressive conflict. Here, we demonstrate the occurrence of reconciliation in a group of captive subadult ravens (Corvus corax) and show that it is more likely to occur after conflicts between partners who share a valuable relationship. Furthermore, former opponents were less likely to engage in renewed aggression following reconciliation, suggesting that reconciliation repairs damage caused to their relationship by the preceding conflict. Our findings suggest not only that primate-like valuable relationships exist outside the pair bond in birds, but that such partners may employ the same mechanisms in birds as in primates to ensure that the benefits afforded by their relationships are maintained even when conflicts of interest escalate into aggression. These results provide further support for a convergent evolution of social strategies in avian and mammalian species.

  10. Salt Lakes of the African Rift System: A Valuable Research ...

    African Journals Online (AJOL)

    Salt Lakes of the African Rift System: A Valuable Research Opportunity for Insight into Nature's Concenrtated Multi-Electrolyte Science. JYN Philip, DMS Mosha. Abstract. The Tanzanian rift system salt lakes present significant cultural, ecological, recreational and economical values. Beyond the wealth of minerals, resources ...

  11. Electronic theses and dissertations: a review of this valuable resource for nurse scholars worldwide.

    Science.gov (United States)

    Goodfellow, L M

    2009-06-01

    A worldwide repository of electronic theses and dissertations (ETDs) could provide worldwide access to the most up-to-date research generated by masters and doctoral students. Until that international repository is established, it is possible to access some of these valuable knowledge resources. ETDs provide a technologically advanced medium with endless multimedia capabilities that far exceed the print and bound copies of theses and dissertations housed traditionally in individual university libraries. CURRENT USE: A growing trend exists for universities worldwide to require graduate students to submit theses or dissertations as electronic documents. However, nurse scholars underutilize ETDs, as evidenced by perusing bibliographic citation lists in many of the research journals. ETDs can be searched for and retrieved through several digital resources such as the Networked Digital Library of Theses and Dissertations (http://www.ndltd.org), ProQuest Dissertations and Theses (http://www.umi.com), the Australasian Digital Theses Program (http://adt.caul.edu.au/) and through individual university web sites and online catalogues. An international repository of ETDs benefits the community of nurse scholars in many ways. The ability to access recent graduate students' research electronically from anywhere in the world is advantageous. For scholars residing in developing countries, access to these ETDs may prove to be even more valuable. In some cases, ETDs are not available for worldwide access and can only be accessed through the university library from which the student graduated. Public access to university library ETD collections is not always permitted. Nurse scholars from both developing and developed countries could benefit from ETDs.

  12. Digital library programs for libraries and archives developing, managing, and sustaining unique digital collections

    CERN Document Server

    Purcell, D

    2016-01-01

    Equally valuable for LIS students just learning about the digital landscape, information professionals taking their first steps to create digital content, and organizations who already have well-established digital credentials, Purcell's book outlines methods applicable and scalable to many different types and sizes of libraries and archives.

  13. Benefit of Analog, Programmable and Digital Hearing Aids

    Directory of Open Access Journals (Sweden)

    Jamileh Fatahi

    2006-12-01

    Full Text Available Background and Aims: As the hearing aid technology progressively promotes toward replacing analog hearing aids with digital and programmable ones, comparison of the patient satisfaction of those kinds of hearing aids by means of a valuable tool seems so necessary. So, the aim of this study was to compare self-reported benefit of analog, digitally controlled programmable and digital hearing aids for reducing disability caused by hearing impairment in mild to severe sensorineural hearing impaired persons. Materials and Methods: This cross-sectional study was performed on 90 persons with mild to severe sensorineural hearing loss dividing into three groups: 43 subjects were fitted with digital, 15 with programmable, 32 with analog hearing aids. After pure tone audiometry, Abbreviated profile of hearing aid benefit (APHAB was completed before and one month after using hearing aids to determine the benefit of them. Results: Global APHAB mean scores for digital, programmable and analog hearing aids were 49.05, 33.19 and 39.53, respectively. Ease of Communication subscale mean scores were 53.46 for digitals, 37.66 for programmables and 39.09 for analogs. Background noise subscale mean scores for digital programmable and analog hearing aids were 46.36, 25.53 and 35.31, respectively. Global and also both subscale mean scores showed significant difference between digital hearing aids and programmable and analog ones. There was no significant difference between reverberation subscale mean scores of three groups. Conclusion: It seems digital hearing aids may be more beneficial to reduce disability caused by hearing loss than analog and programmable hearing aids are.

  14. Digital subtraction angiography

    International Nuclear Information System (INIS)

    Neuwirth, J. Jr.; Bohutova, J.

    1987-01-01

    The quality of radiodiagnostic methods to a great extent depends on the quality of the resulting image. The basic technical principles are summed up of the different parts of digital subtraction angiography apparatus and of methods of improving the image. The instrument is based on a videochain consisting of an X-ray tube, an intensifier of the radiographic image, optical parts, a video camera, an analog-to-digital converter and a computer. The main advantage of the digitally processed image is the possibility of optimizing the image into a form which will contain the biggest amount of diagnostically valuable information. Described are the mathematical operations for improving the digital image: spatial filtration, pixel shift, time filtration, image integration, time interval differentation and matched filtering. (M.D.). 8 refs., 3 figs

  15. Valuable human capital: the aging health care worker.

    Science.gov (United States)

    Collins, Sandra K; Collins, Kevin S

    2006-01-01

    With the workforce growing older and the supply of younger workers diminishing, it is critical for health care managers to understand the factors necessary to capitalize on their vintage employees. Retaining this segment of the workforce has a multitude of benefits including the preservation of valuable intellectual capital, which is necessary to ensure that health care organizations maintain their competitive advantage in the consumer-driven market. Retaining the aging employee is possible if health care managers learn the motivators and training differences associated with this category of the workforce. These employees should be considered a valuable resource of human capital because without their extensive expertise, intense loyalty and work ethic, and superior customer service skills, health care organizations could suffer severe economic repercussions in the near future.

  16. VALUABLE AND ORIENTATION FOUNDATIONS OF EDUCATIONAL SYSTEM OF THE COUNTRY

    OpenAIRE

    Vladimir I. Zagvyazinsky

    2016-01-01

    The aim of the investigation is to show that in modern market conditions it is necessary to keep humanistic valuable and orientation installations of domestic education and not to allow its slipping on a line item of utilitarian, quickly achievable, but not long-term benefits. Theoretical significance. The author emphasizes value of forming of an ideal – harmonious development of the personality – and the collectivist beginnings for disclosure of potential of each school student, a student, a...

  17. Gazing at places we have never been: landscape, heritage and identity: a comment on Jörg Rekittke and Philip Paar: 'Past pictures: landscape visualization with digital tools'

    NARCIS (Netherlands)

    van der Laarse, R.; Bloemers, T.; Kars, H.; van der Valk, A.; Wijnen, M.

    2010-01-01

    Acknowledging the paradigmatic impact of new digital techniques, this contribution questions the depoliticized conceptualization of landscape in modern landscape visualizations from a theoretical and historical perspective. Long after the earlier periods of formal gardening and landscaping, the

  18. Is sdLDL a valuable screening tool for cardiovascular disease in ...

    African Journals Online (AJOL)

    Many patients with cardiovascular disease have their low density lipoprotein cholesterol within normal range. This raises the question about the most important lipoprotein to use as a marker of atherogenecity. In fact, small dense low density lipoprotein has recently been suggested as a strong predictor of cardiovascular ...

  19. Otolith shape as a valuable tool to evaluate the stock structure of ...

    African Journals Online (AJOL)

    Swordfish Xiphias gladius is an oceanic-pelagic species. Its population structure in the Western Indian Ocean was studied from the shape of the sagittal otoliths of 391 individuals collected from 2009 to 2014. Normalised elliptical Fourier descriptors (EFDs) were extracted automatically using TNPC software. Principal ...

  20. Aequorin chimeras as valuable tool in the measurement of Ca2+ concentration during cadmium injury

    International Nuclear Information System (INIS)

    Biagioli, M.; Pinton, P.; Scudiero, R.; Ragghianti, M.; Bucci, S.; Rizzuto, R.

    2005-01-01

    The ability of cadmium to disrupt calcium homeostasis has been known since a long time, but the precise cellular targets of its toxic action are still debated. A great problem in the interpretation of data has been associated with the ability of cadmium to strongly bind traditional calcium probes. Aequorin, the well-characterized calcium-sensitive photoprotein, was used as intracellular calcium indicator during cadmium injury in NIH 3T3 murine fibroblasts. NIH 3T3 cells were transfected with a cDNA construct containing aequorin fused to a truncated glutamate receptor, which directs the probe to the outer surface of intracellular membranes. At first, we tested if different cadmium concentrations were able to modify the rate of light emission by aequorin showing that cadmium concentrations 2+ /Ca 2+ interference. To directly investigate the role of Cd 2+ in Ca 2+ homeostasis, we have started to selectively measure the free Ca 2+ concentration in different cell compartments. Here, we report that cadmium reduces the transient free calcium signal after stimulation of cells with bradykinin. Further studies are in progress to clarify the role of mitochondria and endoplasmic reticulum in cadmium-induced alterations of Ca 2+ homeostasis in order to link signal transduction modifications with the onset of apoptosis induced by cadmium exposure

  1. The Mini-Trial: A Valuable Alternative Dispute Resolution Tool for the United States Navy

    National Research Council Canada - National Science Library

    Morgan, Steven

    1997-01-01

    In order to avoid unnecessary, time consuming, and costly litigation, the Department of Defense, and more specifically the United States Navy, has adopted the use of alternative dispute resolution (ADR...

  2. Imaging of peripheral arteries by 16-slice computed tomography angiography: a valuable tool

    International Nuclear Information System (INIS)

    Mishra, A.; Ehtuish, Ehtuish F.

    2007-01-01

    To evaluate the efficacy of multidetector (16-row) computed tomography (MDCT) in imaging the upper and lower limb arterial tree in trauma and peripheral vascular disease. Thirty three patients underwent multislice computed tomography angiography (MSCTA) of the upper or the lower limb on multislice (16-slice) CT scanner between November 2004 and July 2005 in the Department of Radiology, National Organ Transplant Center, Tripoli, Libya. The findings were retrospectively compared with the surgical outcome in cases of trauma with suspected arterial injuries; or color Doppler correlation was obtained, for patients of peripheral vascular disease. Multislice computed tomography angiography allows a comprehensive diagnostic work-up in all trauma cases with suspected arterial injuries. In 23 cases of peripheral vascular diseases, MSCTA adequately demonstrated the presence of any stenosis or occlusion, its degree and extent, the presence of collaterals and distal reformation if any; the presence of plaques. Our experience of computed tomography angiography with 16-row MDCT scanner has clearly demonstrated its efficacy as a promising, new, fast, accurate, safe and non-invasive imaging modality of choice in cases of trauma with suspected arterial injuries; and as a useful screening modality in cases of peripheral vascular disease for diagnosis and for grading. (author)

  3. Sea sand disruption method (SSDM) as a valuable tool for isolating essential oil components from conifers.

    Science.gov (United States)

    Dawidowicz, Andrzej L; Czapczyńska, Natalia B

    2011-11-01

    Essential oils are one of nature's most precious gifts with surprisingly potent and outstanding properties. Coniferous oils, for instance, are nowadays being used extensively to treat or prevent many types of infections, modify immune responses, soothe inflammations, stabilize moods, and to help ease all forms of non-acute pain. Given the broad spectrum of usage of coniferous essential oils, a fast, safe, simple, and efficient sample-preparation method is needed in the estimation procedure of essential oil components in fresh plant material. Generally, the time- and energy-consuming steam distillation (SD) is applied for this purpose. This paper will compare SD, pressurized liquid extraction (PLE), matrix solid-phase dispersion (MSPD), and the sea sand disruption method (SSDM) as isolation techniques to obtain aroma components from Scots pine (Pinus sylvestris), spruce (Picea abies), and Douglas fir (Pseudotsuga menziesii). According to the obtained data, SSDM is the most efficient sample preparation method in determining the essential oil composition of conifers. Moreover, SSDM requires small organic solvent amounts and a short extraction time, which makes it an advantageous alternative procedure for the routine analysis of coniferous oils. The superiority of SSDM over MSPD efficiency is ascertained, as there are no chemical interactions between the plant cell components and the sand. This fact confirms the reliability and efficacy of SSDM for the analysis of volatile oil components. Copyright © 2011 Verlag Helvetica Chimica Acta AG, Zürich.

  4. Serum biomarkers reflecting specific tumor tissue remodeling processes are valuable diagnostic tools for lung cancer

    International Nuclear Information System (INIS)

    Willumsen, Nicholas; Bager, Cecilie L; Leeming, Diana J; Smith, Victoria; Christiansen, Claus; Karsdal, Morten A; Dornan, David; Bay-Jensen, Anne-Christine

    2014-01-01

    Extracellular matrix (ECM) proteins, such as collagen type I and elastin, and intermediate filament (IMF) proteins, such as vimentin are modified and dysregulated as part of the malignant changes leading to disruption of tissue homeostasis. Noninvasive biomarkers that reflect such changes may have a great potential for cancer. Levels of matrix metalloproteinase (MMP) generated fragments of type I collagen (C1M), of elastin (ELM), and of citrullinated vimentin (VICM) were measured in serum from patients with lung cancer (n = 40), gastrointestinal cancer (n = 25), prostate cancer (n = 14), malignant melanoma (n = 7), chronic obstructive pulmonary disease (COPD) (n = 13), and idiopathic pulmonary fibrosis (IPF) (n = 10), as well as in age-matched controls (n = 33). The area under the receiver operating characteristics (AUROC) was calculated and a diagnostic decision tree generated from specific cutoff values. C1M and VICM were significantly elevated in lung cancer patients as compared with healthy controls (AUROC = 0.98, P < 0.0001) and other cancers (AUROC = 0.83 P < 0.0001). A trend was detected when comparing lung cancer with COPD+IPF. No difference could be seen for ELM. Interestingly, C1M and VICM were able to identify patients with lung cancer with a positive predictive value of 0.9 and an odds ratio of 40 (95% CI = 8.7–186, P < 0.0001). Biomarkers specifically reflecting degradation of collagen type I and citrullinated vimentin are applicable for lung cancer patients. Our data indicate that biomarkers reflecting ECM and IMF protein dysregulation are highly applicable in the lung cancer setting. We speculate that these markers may aid in diagnosing and characterizing patients with lung cancer

  5. Tying Profit to Performance: A Valuable Tool, But Use With Good Judgment

    Science.gov (United States)

    2015-06-01

    profitability on behalf of its shareholders and/or owners—that’s capital- ism. Our job is to protect the interests of the taxpayers and the warfighter while...business, then it was not good. Profit is the fundamental reason that businesses exist: to make money for their owners or shareholders . Without...performance of the service, or we may only be interested in controlling cost at a set level of performance. As we emphasized in BBP 2.0, we have to start

  6. The mixed dentition pantomogram: a valuable dental development assessment tool for the dentist.

    Science.gov (United States)

    Hudson, A P G; Harris, A M P; Mohamed, N

    2009-11-01

    The mixed dentition pantomogram is routinely used in paediatric patients. This paper discusses the value of the pantomogram for early identification of problems in dental development during the mixed dentition stage. Aspects regarding dental maturity, leeway space, the sequence of eruption of the permanent teeth, anomalies and the development of the canines will be reviewed.

  7. Template mediated protein self-assembly as a valuable tool in regenerative therapy.

    Science.gov (United States)

    Kundu, B; Eltohamy, M; Yadavalli, V K; Reis, R L; Kim, H W

    2018-04-11

    The assembly of natural proteinaceous biopolymers into macro-scale architectures is of great importance in synthetic biology, soft-material science and regenerative therapy. The self-assembly of protein tends to be limited due to anisotropic interactions among protein molecules, poor solubility and stability. Here, we introduce a unique platform to self-immobilize diverse proteins (fibrous and globular, positively and negatively charged, low and high molecular weight) using silicon surfaces with pendant -NH 2 groups via a facile one step diffusion limited aggregation (DLA) method. All the experimental proteins (type I collagen, bovine serum albumin and cytochrome C) self-assemble into seaweed-like branched dendritic architectures via classical DLA in the absence of any electrolytes. The notable differences in branching architectures are due to dissimilarities in protein colloidal sub-units, which is typical for each protein type, along with the heterogeneous distribution of surface -NH 2 groups. Fractal analysis of assembled structures is used to explain the underlying route of fractal deposition; which concludes how proteins with different functionality can yield similar assembly. Further, the nano-micro-structured surfaces can be used to provide functional topographical cues to study cellular responses, as demonstrated using rat bone marrow stem cells. The results indicate that the immobilization of proteins via DLA does not affect functionality, instead serving as topographical cues to guide cell morphology. This indicates a promising design strategy at the tissue-material interface and is anticipated to guide future surface modifications. A cost-effective standard templating strategy is therefore proposed for fundamental and applied particle aggregation studies, which can be used at multiple length scales for biomaterial design and surface reformation.

  8. Is sdLDL a valuable screening tool for cardiovascular disease in ...

    African Journals Online (AJOL)

    Radwa Momtaz Abdelsamie Zaki Khalil

    Lipoprotein Cholesterol; LDL I, large buoyant LDL; LDL II, intermediate density LDL; LDL III, smaller dense LDL; .... triglycerides >_150 mg, high density lipoprotein (HDL) <40 mg/dl in men ... sion of phenotype B.4,12 For a given triglyceride level, women were .... that sdLDL /LDL ratio is a very strong predictor of CHD in men;.

  9. Umbilical cord blood lactate: a valuable tool in the assessment of fetal metabolic acidosis

    DEFF Research Database (Denmark)

    Gjerris, Anne Cathrine Roslev; Staer-Jensen, Jette; Jørgensen, Jan Stener

    2008-01-01

    The aim of the present study was (1) to evaluate the relationship between umbilical cord arterial blood lactate and pH, standard base excess (SBE), and actual base excess (ABE) at delivery and (2) to suggest a cut-off level of umbilical cord arterial blood lactate in predicting fetal asphyxia usi...... ROC-curves, where an ABE value less than -12 was used as "gold standard" for significant intrapartum asphyxia.......The aim of the present study was (1) to evaluate the relationship between umbilical cord arterial blood lactate and pH, standard base excess (SBE), and actual base excess (ABE) at delivery and (2) to suggest a cut-off level of umbilical cord arterial blood lactate in predicting fetal asphyxia using...

  10. Umbilical cord blood lactate: a valuable tool in the assessment of fetal metabolic acidosis

    DEFF Research Database (Denmark)

    Gjerris, A.C.; Staer-Jensen, J.; Jorgensen, J.S.

    2008-01-01

    asphyxia using ROC-curves, where an ABE value less than -12 was used as "gold standard" for significant intrapartum asphyxia. STUDY DESIGN: This is a descriptive study of umbilical cord arterial blood samples from 2554 singleton deliveries. The deliveries took place at the Department of Obstetrics......OBJECTIVE: The aim of the present study was (1) to evaluate the relationship between umbilical cord arterial blood lactate and pH, standard base excess (SBE), and actual base excess (ABE) at delivery and (2) to suggest a cut-off level of umbilical cord arterial blood lactate in predicting fetal...

  11. Measured parental height in Turner syndrome-a valuable but underused diagnostic tool.

    Science.gov (United States)

    Ouarezki, Yasmine; Cizmecioglu, Filiz Mine; Mansour, Chourouk; Jones, Jeremy Huw; Gault, Emma Jane; Mason, Avril; Donaldson, Malcolm D C

    2018-02-01

    Early diagnosis of Turner syndrome (TS) is necessary to facilitate appropriate management, including growth promotion. Not all girls with TS have overt short stature, and comparison with parental height (Ht) is needed for appropriate evaluation. We examined both the prevalence and diagnostic sensitivity of measured parental Ht in a dedicated TS clinic between 1989 and 2013. Lower end of parental target range (LTR) was calculated as mid-parental Ht (correction factor 12.5 cm minus 8.5 cm) and converted to standard deviation scores (SDS) using UK 1990 data, then compared with patient Ht SDS at first accurate measurement aged > 1 year. Information was available in 172 girls of whom 142 (82.6%) were short at first measurement. However, both parents had been measured in only 94 girls (54.6%). In 92 of these girls age at measurement was 6.93 ± 3.9 years, Ht SDS vs LTR SDS - 2.63 ± 0.94 vs - 1.77 ± 0.81 (p Turner syndrome are short in relation to parental heights, with untreated final height approximately 20 cm below female population mean. • Measured parental height is more accurate than reported height. What is New: • In a dedicated Turner clinic, there was 85% sensitivity when comparing patient height standard deviation score at first accurate measurement beyond 1 year of age with the lower end of the parental target range standard deviation. • However, measured height in both parents had been recorded in only 54.6% of the Turner girls attending the clinic. This indicates the need to improve the quality of growth assessment in tertiary care.

  12. Assessing Speech Intelligibility in Children with Hearing Loss: Toward Revitalizing a Valuable Clinical Tool

    Science.gov (United States)

    Ertmer, David J.

    2011-01-01

    Background: Newborn hearing screening, early intervention programs, and advancements in cochlear implant and hearing aid technology have greatly increased opportunities for children with hearing loss to become intelligible talkers. Optimizing speech intelligibility requires that progress be monitored closely. Although direct assessment of…

  13. Robots provide valuable tools for waste processing at Millstone Nuclear Power Station

    International Nuclear Information System (INIS)

    Miles, K.; Volpe, K.

    1997-01-01

    The Millstone nuclear power station has begun an aggressive program to use robotics, which when properly used minimizes operating costs and exposure to personnel. This article describes several new ways of using existing robotic equipment to speed up work processes and provide solutions to difficult problems. The moisture separator pit and liquid radwaste are discussed

  14. Implementation of the SFRA method as valuable tool for detection of power transformer active part deformation

    Directory of Open Access Journals (Sweden)

    Milić Saša D.

    2014-01-01

    Full Text Available The paper presents the SFRA (Sweep Frequency Response Analysis-SFRA method for analyzing frequency response of transformer windings in order to identify potential defects in the geometry of the core and winding. The most frequent problems (recognized by SFRA are: core shift, shorted or open winding, unwanted contact between core and mass, etc. Comparative analysis of this method with conventional methods is carried out in situ transformer in real hard industrial conditions. Benefits of SFRA method are great reliability and repeatability of the measurements. This method belongs to the non-invasive category. Due to the high reliability and repeatability of the measurements it is very suitable for detection of changes in the geometry of the coil and the core during prophylactic field testing, or after transporting the transformer.

  15. Electronic health records: a valuable tool for dental school strategic planning.

    Science.gov (United States)

    Filker, Phyllis J; Cook, Nicole; Kodish-Stav, Jodi

    2013-05-01

    The objective of this study was to investigate if electronic patient records have utility in dental school strategic planning. Electronic health records (EHRs) have been used by all predoctoral students and faculty members at Nova Southeastern University's College of Dental Medicine (NSU-CDM) since 2006. The study analyzed patient demographic and caries risk assessment data from October 2006 to May 2011 extracted from the axiUm EHR database. The purpose was to determine if there was a relationship between high oral health care needs and patient demographics, including gender, age, and median income of the zip code where they reside in order to support dental school strategic planning including the locations of future satellite clinics. The results showed that about 51 percent of patients serviced by the Broward County-based NSU-CDM oral health care facilities have high oral health care needs and that about 60 percent of this population resides in zip codes where the average income is below the median income for the county ($41,691). The results suggest that EHR data can be used adjunctively by dental schools when proposing potential sites for satellite clinics and planning for future oral health care programming.

  16. Particle induced X-ray emission: a valuable tool for the analysis of metalpoint drawings

    International Nuclear Information System (INIS)

    Duval, A.; Guicharnaud, H.; Dran, J.C.

    2004-01-01

    For several years, we carry out a research on metalpoint drawings, a graphic technique mainly employed by European artists during the 15th and 16th centuries. As a non-destructive and very sensitive analytical technique is required, particle induced X-ray emission (PIXE) analysis with an external beam has been used for this purpose. More than 70 artworks drawn by Italian, Flemish and German artists have been analysed, including leadpoint and silverpoint drawings. Following a short description of the metalpoint technique, the results are compared with the recipes written by Cennino Cennini at the beginning of the 15th century and specific examples are presented

  17. PCR methodology as a valuable tool for identification of endodontic pathogens.

    Science.gov (United States)

    Siqueira, José F; Rôças, Isabela N

    2003-07-01

    This paper reviews the principles of polymerase chain reaction (PCR) methodology, its application in identification of endodontic pathogens and the perspectives regarding the knowledge to be reached with the use of this highly sensitive, specific and accurate methodology as a microbial identification test. Studies published in the medical, dental and biological literature. Evaluation of published epidemiological studies examining the endodontic microbiota through PCR methodology. PCR technology has enabled the detection of bacterial species that are difficult or even impossible to culture as well as cultivable bacterial strains showing a phenotypically divergent or convergent behaviour. Moreover, PCR is more rapid, much more sensitive, and more accurate when compared with culture. Its use in endodontics to investigate the microbiota associated with infected root canals has expanded the knowledge on the bacteria involved in the pathogenesis of periradicular diseases. For instance, Tannerella forsythensis (formerly Bacteroides forsythus), Treponema denticola, other Treponema species, Dialister pneumosintes, and Prevotella tannerae were detected in infected root canals for the first time and in high prevalence when using PCR analysis. The diversity of endodontic microbiota has been demonstrated by studies using PCR amplification, cloning and sequencing of the PCR products. Moreover, other fastidious bacterial species, such as Porphyromonas endodontalis, Porphyromonas gingivalis and some Eubacterium spp., have been reported in endodontic infections at a higher prevalence than those reported by culture procedures.

  18. Confiabilidade do uso de modelos digitais tridimensionais como exame auxiliar ao diagnóstico ortodôntico: um estudo piloto Reliability of three-dimensional digital casts as a diagnostic tool for orthodontic treatment planning: a pilot study

    Directory of Open Access Journals (Sweden)

    Dauro Douglas Oliveira

    2007-02-01

    initially generate controversy, and with digital orthodontic casts it has not been different. Some orthodontists may question the reliability of this new diagnostic tool since there is not enough literature to support the substitution from traditional stone casts to digital models. Therefore, the aim of the present study was to compare the reliability of digital orthodontic models and stone casts as a diagnostic aid. METHODS: three examiners measured the width of the permanent teeth, intercanine and intermolar distances, overbite and overjet of stone and the corresponding digital casts from six patients. A digital caliper was used for measuring the stone casts and the eModel software to evaluate the digital models. RESULTS AND CONCLUSIONS: the results of this study showed no statistically significant difference among any of the measurements tested, except by the width of the lower second right premolar (p<0.05. However, these differences were not considered clinically relevant. These findings show that digital orthodontic casts are as reliable as stone study models as a diagnostic tool for orthodontic treatment planning. The easy data storage, the lower risk of breakage during its handling and transportation, and also the shorter time needed to obtain the diagnostic information were considered additional advantages of this new technology.

  19. Legal Implications of Digital Heritagization

    OpenAIRE

    Weber, Rolf H.; Chrobak, Lennart

    2016-01-01

    Due to the development of information and communication technologies as well as the influence of the Internet, life and work of the contemporary society take increasingly place in virtual form and the approach towards knowledge and heritage fundamentally altered. The remarkable sign of this continuous process is the emergence of Digital Heritage, understood as the accumulation of computer-based, valuable materials, which constitutes a digital reflection of societal developments. Different “he...

  20. Digital library research : current developments and trends

    OpenAIRE

    Shiri, Ali

    2003-01-01

    This column gives an overview of current trends in digital library research under the following headings: digital library architecture, systems, tools and technologies; digital content and collections; metadata; interoperability; standards; knowledge organisation systems; users and usability; legal, organisational, economic, and social issues in digital libraries.

  1. Valuable metals - recovery processes, current trends, and recycling strategies

    Energy Technology Data Exchange (ETDEWEB)

    Froehlich, Peter; Lorenz, Tom; Martin, Gunther; Brett, Beate; Bertau, Martin [Institut fuer Technische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, 09599, Freiberg (Germany)

    2017-03-01

    This Review provides an overview of valuable metals, the supply of which has been classified as critical for Europe. Starting with a description of the current state of the art, novel approaches for their recovery from primary resources are presented as well as recycling processes. The focus lies on developments since 2005. Chemistry strategies which are used in metal recovery are summarized on the basis of the individual types of deposit and mineral. In addition, the economic importance as well as utilization of the metals is outlined. (copyright 2017 Wiley-VCH Verlag GmbH and Co. KGaA, Weinheim)

  2. Extraction of toxic and valuable metals from foundry sands

    International Nuclear Information System (INIS)

    Vite T, J.

    1996-01-01

    There were extracted valuable metals from foundry sands such as: gold, platinum, silver, cobalt, germanium, nickel and zinc among others, as well as highly toxic metals such as chromium, lead, vanadium and arsenic. The extraction efficiency was up to 100% in some cases. For this reason there were obtained two patents at the United States, patent number 5,356,601, in October 1994, given for the developed process and patent number 5,376,000, in December 1994, obtained for the equipment employed. Therefore, the preliminary parameters for the installation of a pilot plant have also been developed. (Author)

  3. Application of digital radiography in the analysis of cultural heritage

    Energy Technology Data Exchange (ETDEWEB)

    Oiveira, Davi F.; Calza, Cristiane; Rocha, Henrique S.; Nascimento, Joseilson R.; Lopes, Ricardo T., E-mail: davi@lin.ufrj.br, E-mail: ccalza@lin.ufrj.br, E-mail: henrique@lin.ufrj.br, E-mail: joseilson@lin.ufrj.br, E-mail: ricardo@lin.ufrj.br [Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ (Brazil). Lab. de Instrumentacao Nuclear

    2013-07-01

    The scientific examination of artworks has gained increasing interest in the last years, allowing the characterization of materials and techniques employed by the artists. This analysis can be extremely valuable to conservation and restoration treatments. However, the fact that every artworks is a unique piece emphasizes the necessity of working with non-destructive techniques. Although radiography has been used in the technical examination of museum objects for many decades, digital radiography is rapidly becoming a preferred modality for this essential tool in the advanced examination of works of art. The ability to electronically combine images from the large painting into a single composite image file was extremely valuable and results in higher quality images than those achieved with conventional radiography. These images can be also processed and improved using adequate software. Additional advantages of digital radiography include the possibility of an almost immediate analysis of the results, use of an only recording film and absence of chemical processing. Radiographic imaging can be applied to the analysis of virtually all media including paintings, sculptures, woodworks, engravings, etc. This paper reports some case studies of the use of digital radiography in the study of paintings and sculptures, showing the feasibility and advantages of this technique for this kind of purpose. The radiographic images revealed the conservation state of the analyzed objects and various details of its execution in order to assist recently restoration processes. (author)

  4. Application of digital radiography in the analysis of cultural heritage

    International Nuclear Information System (INIS)

    Oiveira, Davi F.; Calza, Cristiane; Rocha, Henrique S.; Nascimento, Joseilson R.; Lopes, Ricardo T.

    2013-01-01

    The scientific examination of artworks has gained increasing interest in the last years, allowing the characterization of materials and techniques employed by the artists. This analysis can be extremely valuable to conservation and restoration treatments. However, the fact that every artworks is a unique piece emphasizes the necessity of working with non-destructive techniques. Although radiography has been used in the technical examination of museum objects for many decades, digital radiography is rapidly becoming a preferred modality for this essential tool in the advanced examination of works of art. The ability to electronically combine images from the large painting into a single composite image file was extremely valuable and results in higher quality images than those achieved with conventional radiography. These images can be also processed and improved using adequate software. Additional advantages of digital radiography include the possibility of an almost immediate analysis of the results, use of an only recording film and absence of chemical processing. Radiographic imaging can be applied to the analysis of virtually all media including paintings, sculptures, woodworks, engravings, etc. This paper reports some case studies of the use of digital radiography in the study of paintings and sculptures, showing the feasibility and advantages of this technique for this kind of purpose. The radiographic images revealed the conservation state of the analyzed objects and various details of its execution in order to assist recently restoration processes. (author)

  5. Digital rights management for digital cinema

    Science.gov (United States)

    Kirovski, Darko; Peinado, Marcus; Petitcolas, Fabien A. P.

    2001-12-01

    There is a wide consensus among the feature film production studios that the Internet era brings a new paradigm for film distribution to cinemas worldwide. The benefits of digital cinema to both producers and cinemas are numerous: significantly lower distribution and maintenance costs, immediate access to film libraries, higher presentation quality, and strong potential for developing new business models. Despite these advantages, the studios are still reluctant to jump into the digital age. The main showstopper for digital cinema is the danger of widespread piracy. Piracy already costs Hollywood an estimated two billion dollars annually and digital cinema without proper copyright enforcement could increase this number. In this paper, we present a copyright management system that aims at providing the set of necessary security tools: standard cryptographic primitives and copyright protection mechanisms that enable a reliable and secure feature film delivery system.

  6. Digital imaging primer

    CERN Document Server

    Parkin, Alan

    2016-01-01

    Digital Imaging targets everyyone with an interest in digital imaging, be they professional or private, who uses even quite modest equipment such as a PC, digital camera and scanner, a graphics editor such as Paint, and an inkjet printer. Uniquely, it is intended to fill the gap between highly technical texts for academics (with access to expensive equipment) and superficial introductions for amateurs. The four-part treatment spans theory, technology, programs and practice. Theory covers integer arithmetic, additive and subtractive color, greyscales, computational geometry, and a new presentation of discrete Fourier analysis; Technology considers bitmap file structures, scanners, digital cameras, graphic editors, and inkjet printers; Programs develops several processing tools for use in conjunction with a standard Paint graphics editor and supplementary processing tools; Practice discusses 1-bit, greyscale, 4-bit, 8-bit, and 24-bit images for the practice section. Relevant QBASIC code is supplied an accompa...

  7. "Become a Reporter", the Four Skills News Project: Applying and Practising Language Skills Using Digital Tools for Level C1/C2 Students

    Science.gov (United States)

    Magedera-Hofhansl, Hanna

    2016-01-01

    The Four Skills News Project is an example of communicative language learning, developed for final year German students at the University of Liverpool. It focuses on how students use and practise their reading, writing, listening and speaking skills via the creative use of news reports and digital technology. Each student creates an avatar using…

  8. Animals as an indicator of carbon sequestration and valuable landscapes

    Directory of Open Access Journals (Sweden)

    Jan Szyszko

    2011-05-01

    Full Text Available Possibilities of the assessment of a landscape with the use of succession development stages, monitored with the value of the Mean Individual Biomass (MIB of carabid beetles and the occurrence of bird species are discussed on the basis of an example from Poland. Higher variability of the MIB value in space signifies a greater biodiversity. Apart from the variability of MIB, it is suggested to adopt the occurrence of the following animals as indicators, (in the order of importance, representing underlying valuable landscapes: black stork, lesser spotted eagle, white-tailed eagle, wolf, crane and white stork. The higher number of these species and their greater density indicate a higher value of the landscape for biodiversity and ecosystem services, especially carbon sequestration. All these indicators may be useful to assess measures for sustainable land use.

  9. Metagenomes provide valuable comparative information on soil microeukaryotes

    DEFF Research Database (Denmark)

    Jacquiod, Samuel Jehan Auguste; Stenbæk, Jonas; Santos, Susana

    2016-01-01

    has been identified. Our analyses suggest that publicly available metagenome data can provide valuable information on soil microeukaryotes for comparative purposes when handled appropriately, complementing the current view provided by ribosomal amplicon sequencing methods......., providing microbiologists with substantial amounts of accessible information. We took advantage of public metagenomes in order to investigate microeukaryote communities in a well characterized grassland soil. The data gathered allowed the evaluation of several factors impacting the community structure......, including the DNA extraction method, the database choice and also the annotation procedure. While most studies on soil microeukaryotes are based on sequencing of PCR-amplified taxonomic markers (18S rRNA genes, ITS regions), this work represents, to our knowledge, the first report based solely...

  10. CORRELATION LINKS BETWEEN SOME ECONOMICALLY VALUABLE SIGNS IN BROCCOLI

    Directory of Open Access Journals (Sweden)

    E. A. Zablotskaya

    2018-01-01

    Full Text Available The study of the correlation relationship between the signs, the informativeness of the indicators makes it possible to conduct a preliminary assessment of the plants and more objectively to identify forms with high economically valuable characteristics. Their integrated assessment will identify the best source material for further selection. In literary sources, information on the correlation in broccoli between yields and its elements are not the same. The purpose of our study was to analyze the contingency of various traits and to identify significant correlation links between quantitative traits in broccoli hybrids (42 samples. They were obtained using doubled haploid lines (DH-line of early maturity at 2 planting dates (spring and summer. Studies were conducted in the Odintsovo district of the Moscow region in field experience in 2015, 2016. Significant influence on growth and development was provided by the developing weather conditions during the growing period. The fluctuation of humidification and temperature conditions differed significantly during the years of study and the time of planting, which is an important circumstance for analyzing the data obtained. Based on the results of the research, it was concluded that the value of the correlation coefficient and the strength of the correlation relationship between the characteristics (mass, diameter, head height, plant height, vegetation period are different and depend on the set of test specimens and growing conditions. A significant stable manifestation of positive correlation was revealed during all the years of research and the time of planting between the diameter and mass of the head (r = 0.45-0.96. The variability of the correlation of other economically valuable traits is marked. 

  11. Digital archives. Alcune note

    Directory of Open Access Journals (Sweden)

    Francesca Zanella

    2014-12-01

    Full Text Available MoRE is a digital native museum where projects of artworks are exposed, and also a digital archive where documents about art projectsare collected. MoRE is a multi-layered platform where artists, curators, art historians confront each other collecting art projects, organizing their documentation and defining tools for the communication and surveys on the public. In this paper some critical referencesare identified, that constitute a model for the project as they reflect on the impact of the digital dimension on the transformation of the museum and archive.

  12. Towards Digital Integration

    DEFF Research Database (Denmark)

    Schou, Finn

    2006-01-01

    In 1963, Ivan Sutherland at MIT in his doctoral dissertation, “Sketchpad” introduced a program that has hence been broadly acknowledged as a major step towards drawing digitally. 43 years later the majority of industrial designers within diverse businesses to a high degree still lean upon the use...... of the original “paper and pencil” tools and procedures for conceptual sketching of product style. Through presentation of literature studies and by case studies in the fashion business (eyewear design), this paper puts forward why the penetration of digital tools and methodologies for conceptual styling so far...... has been low. This paper advocates for a paradigm shift. The claim is that implementing digital tools and methodologies is a necessity in order to heighten concept generation productivity - and the outcome. For businesses seeking incremental as well as radical innovation there is no alternative....

  13. Productivity, part 2: cloud storage, remote meeting tools, screencasting, speech recognition software, password managers, and online data backup.

    Science.gov (United States)

    Lackey, Amanda E; Pandey, Tarun; Moshiri, Mariam; Lalwani, Neeraj; Lall, Chandana; Bhargava, Puneet

    2014-06-01

    It is an opportune time for radiologists to focus on personal productivity. The ever increasing reliance on computers and the Internet has significantly changed the way we work. Myriad software applications are available to help us improve our personal efficiency. In this article, the authors discuss some tools that help improve collaboration and personal productivity, maximize e-learning, and protect valuable digital data. Published by Elsevier Inc.

  14. Automatic digitization of SMA data

    Science.gov (United States)

    Väänänen, Mika; Tanskanen, Eija

    2017-04-01

    In the 1970's and 1980's the Scandinavian Magnetometer Array produced large amounts of excellent data from over 30 stations In Norway, Sweden and Finland. 620 film reels and 20 kilometers of film have been preserved and the longest time series produced in the campaign span almost uninterrupted for five years, but the data has never seen widespread use due to the choice of medium. Film is a difficult medium to digitize efficiently. Previously events of interest were searched for by hand and digitization was done by projecting the film on paper and plotting it by hand. We propose a method of automatically digitizing geomagnetic data stored on film and extracting the numerical values from the digitized data. The automatic digitization process helps in preserving old, valuable data that might otherwise go unused.

  15. Digital Social Media (DSM as tools to develop the audience for the Moroccan Medias: “Cases of the private radios”

    Directory of Open Access Journals (Sweden)

    Mohamed BENDAHAN

    2016-12-01

    Full Text Available At the beginning of the 21th century multitudes of economic, political and cultural mutation have been observed. These transformations are due to the recent audiovisual reforms concerning the multiplication of private platforms (TV and Radios and the instauration of the higher quality of programs. Our reflexion focused on the facts which have lead some private radios to base their marketing and communication strategy on the digital social Medias (DSM to promote their editorial line and radio programs.

  16. Development of RESTful services and map-based user interface tools for access and delivery of data and metadata from the Marine-Geo Digital Library

    Science.gov (United States)

    Morton, J. J.; Ferrini, V. L.

    2015-12-01

    The Marine Geoscience Data System (MGDS, www.marine-geo.org) operates an interactive digital data repository and metadata catalog that provides access to a variety of marine geology and geophysical data from throughout the global oceans. Its Marine-Geo Digital Library includes common marine geophysical data types and supporting data and metadata, as well as complementary long-tail data. The Digital Library also includes community data collections and custom data portals for the GeoPRISMS, MARGINS and Ridge2000 programs, for active source reflection data (Academic Seismic Portal), and for marine data acquired by the US Antarctic Program (Antarctic and Southern Ocean Data Portal). Ensuring that these data are discoverable not only through our own interfaces but also through standards-compliant web services is critical for enabling investigators to find data of interest.Over the past two years, MGDS has developed several new RESTful web services that enable programmatic access to metadata and data holdings. These web services are compliant with the EarthCube GeoWS Building Blocks specifications and are currently used to drive our own user interfaces. New web applications have also been deployed to provide a more intuitive user experience for searching, accessing and browsing metadata and data. Our new map-based search interface combines components of the Google Maps API with our web services for dynamic searching and exploration of geospatially constrained data sets. Direct introspection of nearly all data formats for hundreds of thousands of data files curated in the Marine-Geo Digital Library has allowed for precise geographic bounds, which allow geographic searches to an extent not previously possible. All MGDS map interfaces utilize the web services of the Global Multi-Resolution Topography (GMRT) synthesis for displaying global basemap imagery and for dynamically provide depth values at the cursor location.

  17. The Use of "Real" English in Language Learning: Making Authentic NS Speech Accessible Through a Novel Digital Slow-down Tool

    OpenAIRE

    Meinardi, Marty

    2006-01-01

    This project is concerned with the design of English as a Second Language (ESL) courseware for Computer Assisted Language Learning (CALL). It arises out of the Enterprise Ireland funded DITCALL (Digital Interactive Toolkit for Computer Assisted Language learning) project. The focus of the research for this courseware is on using authentic video and audio material that is as natural and true to life as possible and providing adequate, pedagogically efficient and visually pleasing lesson materi...

  18. Analogies in Medicine: Valuable for Learning, Reasoning, Remembering and Naming

    Science.gov (United States)

    Pena, Gil Patrus; Andrade-Filho, Jose de Souza

    2010-01-01

    Analogies are important tools in human reasoning and learning, for resolving problems and providing arguments, and are extensively used in medicine. Analogy and similarity involve a structural alignment or mapping between domains. This cognitive mechanism can be used to make inferences and learn new abstractions. Through analogies, we try to…

  19. Investigation of a valuable biochemical indicator in radiotherapy. Pt. 2

    International Nuclear Information System (INIS)

    Horvath, M.; Geszti, O.; Benedek, E.; Farkas, J.; Reischl, G.

    1979-01-01

    The hemoglobin level of blood plasma is a sensitive tool in measuring radiation effects. Its value has increased in most of the cases during radiotherapy of cancer patients even applied at low doses. Haptoglobins behave similarly, the timedependent changes during radiotherapy are almost identical at both parameters. (orig.) [de

  20. Technologies for Extracting Valuable Metals and Compounds from Geothermal Fluids

    Energy Technology Data Exchange (ETDEWEB)

    Harrison, Stephen [SIMBOL Materials

    2014-04-30

    Executive Summary Simbol Materials studied various methods of extracting valuable minerals from geothermal brines in the Imperial Valley of California, focusing on the extraction of lithium, manganese, zinc and potassium. New methods were explored for managing the potential impact of silica fouling on mineral extraction equipment, and for converting silica management by-products into commercial products.` Studies at the laboratory and bench scale focused on manganese, zinc and potassium extraction and the conversion of silica management by-products into valuable commercial products. The processes for extracting lithium and producing lithium carbonate and lithium hydroxide products were developed at the laboratory scale and scaled up to pilot-scale. Several sorbents designed to extract lithium as lithium chloride from geothermal brine were developed at the laboratory scale and subsequently scaled-up for testing in the lithium extraction pilot plant. Lithium The results of the lithium studies generated the confidence for Simbol to scale its process to commercial operation. The key steps of the process were demonstrated during its development at pilot scale: 1. Silica management. 2. Lithium extraction. 3. Purification. 4. Concentration. 5. Conversion into lithium hydroxide and lithium carbonate products. Results show that greater than 95% of the lithium can be extracted from geothermal brine as lithium chloride, and that the chemical yield in converting lithium chloride to lithium hydroxide and lithium carbonate products is greater than 90%. The product purity produced from the process is consistent with battery grade lithium carbonate and lithium hydroxide. Manganese and zinc Processes for the extraction of zinc and manganese from geothermal brine were developed. It was shown that they could be converted into zinc metal and electrolytic manganese dioxide after purification. These processes were evaluated for their economic potential, and at the present time Simbol

  1. Digital radiography

    International Nuclear Information System (INIS)

    Brody, W.R.

    1984-01-01

    Digital Radiography begins with an orderly introduction to the fundamental concepts of digital imaging. The entire X-ray digital imagining system is described, from an overall characterization of image quality to specific components required for a digital radiographic system. Because subtraction is central to digital radiographic systems, the author details the use of various subtraction methods for image enhancement. Complex concepts are illustrated with numerous examples and presented in terms that can readily be understood by physicians without an advanced mathematics background. The second part of the book discusses implementations and applications of digital imagining systems based on area and scanned detector technologies. This section includes thorough coverage of digital fluoroscopy, scanned projection radiography, and film-based digital imaging systems, and features a state-of-the-art synopsis of the applications of digital subtraction angiography. The book concludes with a timely assessment of anticipated technological advances

  2. Conversion of waste polystyrene through catalytic degradation into valuable products

    Energy Technology Data Exchange (ETDEWEB)

    Shah, Jasmin; Jan, Muhammad Rasul; Adnan [University of Peshawar, Peshawar (Pakistan)

    2014-08-15

    Waste expanded polystyrene (EPS) represents a source of valuable chemical products like styrene and other aromatics. The catalytic degradation was carried out in a batch reactor with a mixture of polystyrene (PS) and catalyst at 450 .deg. C for 30 min in case of Mg and at 400 .deg. C for 2 h both for MgO and MgCO{sub 3} catalysts. At optimum degradation conditions, EPS was degraded into 82.20±3.80 wt%, 91.60±0.20 wt% and 81.80±0.53 wt% liquid with Mg, MgO and MgCO{sub 3} catalysts, respectively. The liquid products obtained were separated into different fractions by fractional distillation. The liquid fractions obtained with three catalysts were compared, and characterized using GC-MS. Maximum conversion of EPS into styrene monomer (66.6 wt%) was achieved with Mg catalyst, and an increase in selectivity of compounds was also observed. The major fraction at 145 .deg. C showed the properties of styrene monomer. The results showed that among the catalysts used, Mg was found to be the most effective catalyst for selective conversion into styrene monomer as value added product.

  3. GC Analyses of Salvia Seeds as Valuable Essential Oil Source

    Directory of Open Access Journals (Sweden)

    Mouna Ben Taârit

    2014-01-01

    Full Text Available The essential oils of seeds of Salvia verbenaca, Salvia officinalis, and Salvia sclarea were obtained by hydrodistillation and analyzed by gas chromatography (GC and GC-mass spectrometry. The oil yields (w/w were 0.050, 0.047, and 0.045% in S. verbenaca, S. sclarea, and S. officinalis, respectively. Seventy-five compounds were identified. The essential oil composition of S. verbenaca seeds showed that over 57% of the detected compounds were oxygenated monoterpenes followed by sesquiterpenes (24.04% and labdane type diterpenes (5.61%. The main essential oil constituents were camphor (38.94%, caryophyllene oxide (7.28%, and 13-epi-manool (5.61%, while those of essential oil of S. officinalis were α-thujone (14.77%, camphor (13.08%, and 1,8-cineole (6.66%. In samples of S. sclarea, essential oil consists mainly of linalool (24.25%, α-thujene (7.48%, linalyl acetate (6.90%, germacrene-D (5.88%, bicyclogermacrene (4.29%, and α-copaene (4.08%. This variability leads to a large range of naturally occurring volatile compounds with valuable industrial and pharmaceutical outlets.

  4. Sea Buckthorn Oil—A Valuable Source for Cosmeceuticals

    Directory of Open Access Journals (Sweden)

    Marijana Koskovac

    2017-10-01

    Full Text Available Sea buckthorn (Hippophae rhamnoides L., Elaeagnaceae. is a thorny shrub that has small, yellow to dark orange, soft, juicy berries. Due to hydrophilic and lipophilic ingredients, berries have been used as food and medicine. Sea buckthorn (SB oil derived from berries is a source of valuable ingredients for cosmeceuticals. The unique combination of SB oil ingredients, in qualitative and quantitative aspects, provides multiple benefits of SB oil for internal and external use. Externally, SB oil can be applied in both healthy and damaged skin (burns or skin damage of different etiology, as it has good wound healing properties. Due to the well-balanced content of fatty acids, carotenoids, and vitamins, SB oil may be incorporated in cosmeceuticals for dry, flaky, burned, irritated, or rapidly ageing skin. There have been more than 100 ingredients identified in SB oil, some of which are rare in the plant kingdom (e.g., the ratio of palmitoleic to γ-linolenic acid. This review discusses facts related to the origin and properties of SB oil that make it suitable for cosmeceutical formulation.

  5. Comparison of Iranian National Medical Library with digital libraries of selected countries.

    Science.gov (United States)

    Zare-Farashbandi, Firoozeh; Najafi, Nayere Sadat Soleimanzade; Atashpour, Bahare

    2014-01-01

    The important role of information and communication technologies and their influence on methods of storing, retrieving information in digital libraries, has not only changed the meanings behind classic library activates but has also created great changes in their services. However, it seems that not all digital libraries provide their users with similar services and only some of them are successful in fulfilling their role in digital environment. The Iranian National Medical library is among those that appear to come short compared to other digital libraries around the world. By knowing the different services provided by digital libraries worldwide, one can evaluate the services provided by Iranian National Medical library. The goal of this study is a comparison between Iranian National Medical library and digital libraries of selected countries. This is an applied study and uses descriptive - survey method. The statistical population is the digital libraries around the world which were actively providing library services between October and December 2011 and were selected by using the key word "Digital Library" in Google search engine. The data-gathering tool was direct access to the websites of these digital libraries. The statistical study is descriptive and Excel software was used for data analysis and plotting of the charts. The findings showed that among the 33 digital libraries investigated worldwide, most of them provided Browse (87.87%), Search (84.84%), and Electronic information retrieval (57.57%) services. The "Help" in public services (48/48%) and "Interlibrary Loan" in traditional services (27/27%) had the highest frequency. The Iranian National Medical library provides more digital services compared to other libraries but has less classic and public services and has less than half of possible public services. Other than Iranian National Medical library, among the 33 libraries investigated, the leaders in providing different services are Library of

  6. The New Digital Divide For Digital BioMarkers.

    Science.gov (United States)

    Torous, John; Rodriguez, Jorge; Powell, Adam

    2017-09-01

    As smartphone and sensors continue to become more ubiquitous across the world, digital biomarkers have emerged as a scalable and practical tool to explore disease states and advance health. But as the digital divide of access and ownership begins to fade, a new digital divide is emerging. Who are the types of people that own smartphones or smart watches, who are the types of people that download health apps or partake in digital biomarker studies, and who are the types of people that are actually active with digital biomarkers apps and sensors - the people providing the high quality and longitudinal data that this field is being founded upon? Understanding the people behind digital biomarkers, the very people this emerging field aims to help, may actually be the real challenge as well as opportunity for digital biomarkers.

  7. VALUABLE AND ORIENTATION FOUNDATIONS OF EDUCATIONAL SYSTEM OF THE COUNTRY

    Directory of Open Access Journals (Sweden)

    Vladimir I. Zagvyazinsky

    2016-01-01

    Full Text Available The aim of the investigation is to show that in modern market conditions it is necessary to keep humanistic valuable and orientation installations of domestic education and not to allow its slipping on a line item of utilitarian, quickly achievable, but not long-term benefits. Theoretical significance. The author emphasizes value of forming of an ideal – harmonious development of the personality – and the collectivist beginnings for disclosure of potential of each school student, a student, a worker, a specialist; also the author emphasizes on requirement of the stimulating, but not strictly regulated management of education. It is proved that copying of the western model of consecutive individualization of education without preserving the collectivist beginning is unacceptable in training, especially in educational process. In more general, strategic foreshortening this means that parity of the problem resolution of economy and the social sphere with which it is impossible to cope without support and educational development and first of all education, it is especially important during the periods of economic crises and stagnation for providing an exit from a crisis state on the basis of the advancing preparation and rational use of the personnel which neatly are considered as a human capital. Practical significance. Resources and positive tendencies in a development of education, especially elite, and also educational systems of some territories, including the Tyumen region where traditions of the enthusiasts-pioneers mastering the remote territories of oil and gas fields remain are shown. 

  8. Rabeto plus: a valuable drug for managing functional dyspepsia.

    Science.gov (United States)

    Ghosh, Asim; Halder, Susanta; Mandal, Sanjoy; Mandal, Arpan; Basu, Mitali; Dabholkar, Pareen

    2008-11-01

    The aim of the study was to evaluate and document the efficacy and tolerability of rabeto plus (FDC of rabeprazole and itopride) in management of functional dyspepsia. It was an open, prospective, non-comparative, multidose study. The patients with functional dyspepsia (NERD or non-erosive reflux disease) attending OPD of a leading, tertiary care, teaching hospital in West Bengal (BS Medical College, Bankura) were inducted in the study. A total of 46 adult patients of either sex with functional dyspepsia and a clinical diagnosis of NERD were given 1 capsule of rabeto plus before breakfast, for up to 4 weeks. Primary efficacy variables were relief from symptoms of heartburn, nausea, vomiting, waterbrash and fullness. Secondary efficacy variables were global assessment of efficacy and toleration by patients and treating physicians. The tolerability was assessed on the basis of record of spontaneously reported adverse events with their nature, intensity and outcome. Out of 55 patients enrolled in the study, 46 completed the study as planned, while 9 patients were lost to follow-up (dropped). Most patients reported near total symptom relief by the end of study. Total symptom score showed remarkable and significant improvement from baseline to end of the study. Importantly, none of the patients reported any side-effect. All participants tolerated the drug well. Moreover, response to study drug was rated as excellent or good by over 93% patients and their treating physicians. This means that 9 out 10 patients receiving rabeto plus reported desired symptom relief from dyspepsia. Thus it was concluded that rabeto plus is a valuable drug for treatment of functional dyspepsia or NERD.

  9. Whey-derived valuable products obtained by microbial fermentation.

    Science.gov (United States)

    Pescuma, Micaela; de Valdez, Graciela Font; Mozzi, Fernanda

    2015-08-01

    Whey, the main by-product of the cheese industry, is considered as an important pollutant due to its high chemical and biological oxygen demand. Whey, often considered as waste, has high nutritional value and can be used to obtain value-added products, although some of them need expensive enzymatic synthesis. An economical alternative to transform whey into valuable products is through bacterial or yeast fermentations and by accumulation during algae growth. Fermentative processes can be applied either to produce individual compounds or to formulate new foods and beverages. In the first case, a considerable amount of research has been directed to obtain biofuels able to replace those derived from petrol. In addition, the possibility of replacing petrol-derived plastics by biodegradable polymers synthesized during bacterial fermentation of whey has been sought. Further, the ability of different organisms to produce metabolites commonly used in the food and pharmaceutical industries (i.e., lactic acid, lactobionic acid, polysaccharides, etc.) using whey as growth substrate has been studied. On the other hand, new low-cost functional whey-based foods and beverages leveraging the high nutritional quality of whey have been formulated, highlighting the health-promoting effects of fermented whey-derived products. This review aims to gather the multiple uses of whey as sustainable raw material for the production of individual compounds, foods, and beverages by microbial fermentation. This is the first work to give an overview on the microbial transformation of whey as raw material into a large repertoire of industrially relevant foods and products.

  10. Recycled Cell Phones - A Treasure Trove of Valuable Metals

    Science.gov (United States)

    Sullivan, Daniel E.

    2006-01-01

    This U.S. Geological Survey (USGS) Fact Sheet examines the potential value of recycling the metals found in obsolete cell phones. Cell phones seem ubiquitous in the United States and commonplace throughout most of the world. There were approximately 1 billion cell phones in use worldwide in 2002. In the United States, the number of cell phone subscribers increased from 340,000 in 1985 to 180 million in 2004. Worldwide, cell phone sales have increased from slightly more than 100 million units per year in 1997 to an estimated 779 million units per year in 2005. Cell phone sales are projected to exceed 1 billion units per year in 2009, with an estimated 2.6 billion cell phones in use by the end of that year. The U.S. Environmental Protection Agency estimated that, by 2005, as many as 130 million cell phones would be retired annually in the United States. The nonprofit organization INFORM, Inc., anticipated that, by 2005, a total of 500 million obsolete cell phones would have accumulated in consumers' desk drawers, store rooms, or other storage, awaiting disposal. Typically, cell phones are used for only 1 1/2 years before being replaced. Less than 1 percent of the millions of cell phones retired and discarded annually are recycled. When large numbers of cell phones become obsolete, large quantities of valuable metals end up either in storage or in landfills. The amount of metals potentially recoverable would make a significant addition to total metals recovered from recycling in the United States and would supplement virgin metals derived from mining.

  11. GMO quantification: valuable experience and insights for the future.

    Science.gov (United States)

    Milavec, Mojca; Dobnik, David; Yang, Litao; Zhang, Dabing; Gruden, Kristina; Zel, Jana

    2014-10-01

    Cultivation and marketing of genetically modified organisms (GMOs) have been unevenly adopted worldwide. To facilitate international trade and to provide information to consumers, labelling requirements have been set up in many countries. Quantitative real-time polymerase chain reaction (qPCR) is currently the method of choice for detection, identification and quantification of GMOs. This has been critically assessed and the requirements for the method performance have been set. Nevertheless, there are challenges that should still be highlighted, such as measuring the quantity and quality of DNA, and determining the qPCR efficiency, possible sequence mismatches, characteristics of taxon-specific genes and appropriate units of measurement, as these remain potential sources of measurement uncertainty. To overcome these problems and to cope with the continuous increase in the number and variety of GMOs, new approaches are needed. Statistical strategies of quantification have already been proposed and expanded with the development of digital PCR. The first attempts have been made to use new generation sequencing also for quantitative purposes, although accurate quantification of the contents of GMOs using this technology is still a challenge for the future, and especially for mixed samples. New approaches are needed also for the quantification of stacks, and for potential quantification of organisms produced by new plant breeding techniques.

  12. Digital mammography; Mamografia digital

    Energy Technology Data Exchange (ETDEWEB)

    Chevalier, M.; Torres, R.

    2010-07-01

    Mammography represents one of the most demanding radiographic applications, simultaneously requiring excellent contrast sensitivity, high spatial resolution, and wide dynamic range. Film/screen is the most widely extended image receptor in mammography due to both its high spatial resolution and contrast. The film/screen limitations are related with its narrow latitude, structural noise and that is at the same time the medium for the image acquisition, storage and presentation. Several digital detector made with different technologies can overcome these difficulties. Here, these technologies as well as their main advantages and disadvantages are analyzed. Also it is discussed its impact on the mammography examinations, mainly on the breast screening programs. (Author).

  13. Rhetoric and the digital humanities

    CERN Document Server

    Ridolfo, Jim

    2015-01-01

    The digital humanities is a rapidly growing field that is transforming humanities research through digital tools and resources. Researchers can now quickly trace every one of Issac Newton's annotations, use social media to engage academic and public audiences in the interpretation of cultural texts, and visualize travel via ox cart in third-century Rome or camel caravan in ancient Egypt. Rhetorical scholars are leading the revolution by fully utilizing the digital toolbox, finding themselves at the nexus of digital innovation. Rhetoric and the Digital Humanities is a timely, multidisciplinary collection that is the first to bridge scholarship in rhetorical studies and the digital humanities. It offers much-needed guidance on how the theories and methodologies of rhetorical studies can enhance all work in digital humanities, and vice versa. Twenty-three essays over three sections delve into connections, research methodology, and future directions in this field. Jim Ridolfo and William Hart-Davidson have assemb...

  14. The Challenges of Digital Leadership

    Science.gov (United States)

    McLeod, Scott

    2015-01-01

    Because digital devices and online environments can simultaneously be transformatively empowering and maddeningly disruptive, the work of integrating digital learning tools into schools is usually difficult and complex. Common challenges arise, however, and can be thoughtfully addressed by proactive leadership. In the end, technology change in…

  15. Unraveling light with digital holograms

    CSIR Research Space (South Africa)

    Forbes, A

    2013-02-01

    Full Text Available devices, digital holography as an enabling tool has become accessible to all, and with it modal decomposition has come of age. Here we outline the basic principles of modal decomposition of laser beams with digital holograms, and review recent results...

  16. Digital Tectonics

    DEFF Research Database (Denmark)

    Christiansen, Karl; Borup, Ruben; Søndergaard, Asbjørn

    2014-01-01

    Digital Tectonics treats the architectonical possibilities in digital generation of form and production. The publication is the first volume of a series, in which aspects of the strategic focus areas of the Aarhus School of Architecture will be disseminated.......Digital Tectonics treats the architectonical possibilities in digital generation of form and production. The publication is the first volume of a series, in which aspects of the strategic focus areas of the Aarhus School of Architecture will be disseminated....

  17. Digital squares

    DEFF Research Database (Denmark)

    Forchhammer, Søren; Kim, Chul E

    1988-01-01

    Digital squares are defined and their geometric properties characterized. A linear time algorithm is presented that considers a convex digital region and determines whether or not it is a digital square. The algorithm also determines the range of the values of the parameter set of its preimages....... The analysis involves transforming the boundary of a digital region into parameter space of slope and y-intercept...

  18. Digital skrivedidaktik

    DEFF Research Database (Denmark)

    Digital skrivedidaktik består af to dele. Første del præsenterer teori om skrivekompetence og digital skrivning. Digital skrivning er karakteriseret ved at tekster skrives på computer og med digitale værktøjer, hvilket ændrer skrivningens traditionelle praksis, produkt og processer. Hvad er digital...... om elevens skriveproces) og Blogskrivning (der styrker eleverne i at bruge blogs i undervisningen)....

  19. Ground subsidence information as a valuable layer in GIS analysis

    Science.gov (United States)

    Murdzek, Radosław; Malik, Hubert; Leśniak, Andrzej

    2018-04-01

    Among the technologies used to improve functioning of local governments the geographic information systems (GIS) are widely used. GIS tools allow to simultaneously integrate spatial data resources, analyse them, process and use them to make strategic decisions. Nowadays GIS analysis is widely used in spatial planning or environmental protection. In these applications a number of spatial information are utilized, but rarely it is an information about environmental hazards. This paper includes information about ground subsidence that occurred in USCB mining area into GIS analysis. Monitoring of this phenomenon can be carried out using the radar differential interferometry (DInSAR) method.

  20. Ground subsidence information as a valuable layer in GIS analysis

    Directory of Open Access Journals (Sweden)

    Murdzek Radosław

    2018-01-01

    Full Text Available Among the technologies used to improve functioning of local governments the geographic information systems (GIS are widely used. GIS tools allow to simultaneously integrate spatial data resources, analyse them, process and use them to make strategic decisions. Nowadays GIS analysis is widely used in spatial planning or environmental protection. In these applications a number of spatial information are utilized, but rarely it is an information about environmental hazards. This paper includes information about ground subsidence that occurred in USCB mining area into GIS analysis. Monitoring of this phenomenon can be carried out using the radar differential interferometry (DInSAR method.

  1. Digital divide and digital opportunity: Comparison, analysis and strategies for sustainable development in developing nations

    International Nuclear Information System (INIS)

    Bhunia, C.T.; Onime, C.

    2007-07-01

    The world is witnessing a new digital economic order which may be quantified by the diffusion of information technology and globalization process. The current information technology gap (digital divide) between developed countries and developing countries is huge. Improvements in information technology (measured by the digital opportunity index) usually open up an opportunity for national/regional growth and development. There is a need for scientific investigation on the digital divide, digital opportunity index and their consequences. This paper presents a critical analysis of existing digital divide and its trends, it also investigates the relationship between the digital divide and the digital opportunity index. A mathematical model based on analysis of the growing digital divide is presented as a possible tool for combating and eradicate the digital divide gap which is only possible if developing and poor nations take advantage of the digital opportunities that can transform them into global competitive partners in digital knowledge economy. (author)

  2. Digital Citizenship

    Science.gov (United States)

    Isman, Aytekin; Canan Gungoren, Ozlem

    2014-01-01

    Era in which we live is known and referred as digital age.In this age technology is rapidly changed and developed. In light of these technological advances in 21st century, schools have the responsibility of training "digital citizen" as well as a good citizen. Digital citizens must have extensive skills, knowledge, Internet and …

  3. Digital Social Science Lab

    DEFF Research Database (Denmark)

    Svendsen, Michael; Lauersen, Christian Ulrich

    2015-01-01

    At the Faculty Library of Social Sciences (part of Copenhagen University Library) we are currently working intensely towards the establishment of a Digital Social Science Lab (DSSL). The purpose of the lab is to connect research, education and learning processes with the use of digital tools...... at the Faculty of Social Sciences. DSSL will host and facilitate an 80 m2 large mobile and intelligent study- and learning environment with a focus on academic events, teaching and collaboration. Besides the physical settings DSSL has two primary functions: 1. To implement relevant social scientific software...... and hardware at the disposal for students and staff at The Faculty of Social Sciences along with instruction and teaching in the different types of software, e.g. Stata, Nvivo, Atlas.ti, R Studio, Zotero and GIS-software. 2. To facilitate academic events focusing on use of digital tools and analytic software...

  4. Distributed Digital Book

    Directory of Open Access Journals (Sweden)

    Mario Žagar

    2006-06-01

    Full Text Available Concept of distributed digital book (DDB based on the XML is proposed. The author's side as well as the reader's side are analyzed. Different book modules and their frameworks are defined. Module design tools are proposed. Practical solution with appropriate examples is shown.

  5. Digital subtraktion

    DEFF Research Database (Denmark)

    Mussmann, Bo Redder

    2004-01-01

    Digital subtraktion er en metode til at fjerne uønskede oplysninger i et røntgenbillede. Subtraktionsteknikken bruges primært i forbindelse med angiografi hvor man kun er interesseret i at se selve karret. Derfor er digital subtraktion i daglig tale synonymt med DSA eller DVI – hhv. Digital...... Subtraction Angiography eller Digital Vascular Imaging. Benævnelserne er to røntgenfirmaers navn for den samme teknik. Digital subtraktion kræver speciel software, samt at apparaturet kan eksponere i serier....

  6. Digital preservation

    CERN Document Server

    Deegan, Marilyn

    2013-01-01

    Digital preservation is an issue of huge importance to the library and information profession right now. With the widescale adoption of the internet and the rise of the world wide web, the world has been overwhelmed by digital information. Digital data is being produced on a massive scale by individuals and institutions: some of it is born, lives and dies only in digital form, and it is the potential death of this data, with its impact on the preservation of culture, that is the concern of this book. So how can information professionals try to remedy this? Digital preservation is a complex iss

  7. Soft copy digital mammography

    International Nuclear Information System (INIS)

    Kim, Hak Hee

    2005-01-01

    Screen-film mammography (SFM) has been the standard method used for breast cancer screening and making a clinical diagnosis. It is a valuable modality for the detection and differentiation of breast calcifications. The advantages are the high spatital resolution, the convenient display, and inexpensiveness. However, it has some inherent limitations such as its low detective quantum efficiency and difficulty of post-processing after obtaining after an image. Digital mammography (DM) has the potential to overcome the inherent limitations of SFM. DM systems directly qualify x-ray photons and decouple the process of x-ray photon detection from the image display. The digital images can be processed by a computer and displayed in multiple formats. Thus, DM is better than SFM for the detection of mass lesions due to its high contrast resolution

  8. Digital Natives or Digital Tribes?

    Science.gov (United States)

    Watson, Ian Robert

    2013-01-01

    This research builds upon the discourse surrounding digital natives. A literature review into the digital native phenomena was undertaken and found that researchers are beginning to identify the digital native as not one cohesive group but of individuals influenced by other factors. Primary research by means of questionnaire survey of technologies…

  9. PRODUCTION NETWORKS, AND DIGITAL LOGISTICS AS A TOOL FOR REGIONAL DEVELOPMENT: THE WOOD PROCESSING INDUSTRY IN THE CITY OF BURI, SÃO PAULO

    Directory of Open Access Journals (Sweden)

    Eunice Helena Sguizzardi Abascal

    2010-11-01

    Full Text Available In Brazil municipalities and regions face nowadays plenty of challenges to achieve a sustainable development founded in logistic and productive relationship networks. These networks and respective operations require knowledge and domain of productive possibilities and business opportunities that can develop themselves in regional and endogenous territorial scales. These challenges derive of the fact that municipalities are part of many government and administrative regions in brazilian states to actuate in solidary and synergic way, potentializing relationships with respective congeners. Networks formation requests a rigorous knowledge of the socioeconomic conditions, the municipalities and the regions characters, and it requests TIC (Communication and Information Technologies instrumental use, being able to give ways to expand and to know the social actors that are related and their potential partners through digital networks. This type of networks enables a synchronic management of territorial and economic complexities, in real time (just in time. This article analyzes by critical way the causes of socioeconomic depression of Sao Paulo State southwest region, with the objective of identifying the responsible factors of its stagnation. It also analyzes specific characteristics of Buri Municipality that is situated in southwest Sao Paulo State region. Showing business networks formation based on the transformation wood industry. This natural product is available in the region, here we investigate the local development possibilities, productive and logistic networks (Material Networks and we suggest digital networks use. These actions not just only create regional advantages, but indeed releases Sao Paulo metropolis: either its spaces and its circulation highways, unduly congested due vehicle concentration that is responsible by transport, state and federal logistic.

  10. Supply Responses to Digital Distribution: Recorded Music and Live Performances

    OpenAIRE

    Julie Holland Mortimer; Chris Nosko; Alan Sorensen

    2010-01-01

    Changes in technologies for reproducing and redistributing digital goods (e.g., music, movies, software, books) have dramatically affected profitability of these goods, and raised concerns for future development of socially valuable digital products. However, broader illegitimate distribution of digital goods may have offsetting demand implications for legitimate sales of complementary non-digital products. We examine the negative impact of file-sharing on recorded music sales and offsetting ...

  11. Catalytic conversion of CO2 into valuable products

    International Nuclear Information System (INIS)

    Pham-Huu, C.; Ledoux, M.J.

    2008-01-01

    inertness the recovery of the active phase is extremely easy, i.e. acidic or basic washing, which reduce the cost investment of the process for the final spent catalyst disposal and the fully re-use of the support. The high thermal conductivity of the SiC support could also allow the reduction of the temperature loss during the reaction taken into account the high endothermicity of the reaction. The aim of the presentation is to report the synthesis and use of SiC-based catalyst for CO 2 reforming which allows the conversion of CO 2 into a more valuable products for further fuel processing via the Fischer-Tropsch synthesis

  12. Microbial Leaching of Some Valuable Elements From Egyptian Phosphate Rock

    International Nuclear Information System (INIS)

    Kamal, H.M.; Hassanein, R.A.; Mahdy, H.M.A.; Mahmoud, K.F.; Abouzeid, M.A.

    2012-01-01

    Four phosphate rock samples representing different phosphate mineralization modes in Egypt were selected from Abu Tartar, Nile valley and Red sea areas. Factors affecting the phosphate rock solubilization and some of the contained valuable elements by Aspergillus niger, Penicillium sp. and Pseudomonas fluorescence, were studied with especial orientation towards the completion of phosphate rock samples solubilization especially die low grade one. Effect of nitrogen source type on leaching efficiency by Aspergillus niger when two nitrogen sources on the phosphate bioleaching efficiency, it is clear that the ammonium chloride is more favorable as nitrogen source than sodium nitrate in the bioleaching of phosphate rocks. When Aspergillus niger was applied under die following conditions: 50 g/1 of sucrose as a carbon source, 0.1 N of ammonium chloride as a nitrogen source, 10 days incubation period, 0.5% solid: liquid ratio for P 2 O 5 and 5% for U and REE and - 270 mesh of grain size. The optimum leaching of P 2 O 5 , U and REE from phosphate rock samples reached (23.27%, 17.4%, 11.4%, respectively), while at -60 mesh they reached to 16.58%, 28.9%, 30.2% respectively. The optimum conditions for the maximal leaching efficiencies of P 2 O 5 , U and REE when applying the Penicillium sp. from the phosphate rock samples were: 100 g/1 of sucrose as a carbon source for P 2 O 5 and U and 10 g/1 for REE, 7,15 and 10 days incubation period for P 2 O 5 , U and REE, respectively, 0.5% solid: liquid ratio for P 2 O 5 and 5% for U and REE. Finally, the application of phosphate rock samples grinded to -270 mesh of grain size for P 2 O 5 and (-60 to -140) for U and REE. The studied leaching efficiency of P 2 O 5 , U and REE gave at -270 mesh 33.66%, 24.3%, 15.9% respectively, while at -60 mesh they gave 33.76%, 26.7%, 17.8% and at -140 mesh gave 31.32%, 27.9%, 17.6%, respectively.The optimum conditions for the P 2 O 5 leaching efficiency when applying the Pseudomonas fluorescence were

  13. La simulación digital como herramienta para el reacondicionamiento bioclimático de edificios = Digital simulation as a tool for bioclimatic re-conditioning of buildings

    Directory of Open Access Journals (Sweden)

    Andrea Sancho Salas

    2017-04-01

    Full Text Available El presente estudio propone e implementa una metodología para analizar el comportamiento de edificios existentes en respuesta a variables climáticas y geográficas específicas, mediante el uso de simulaciones termodinámicas digitales que permitan modificaciones para mejorar el confort interno. El análisis se realizó por medio de seis casos de estudio ubicados en tres zonas de vida de Costa Rica: Bosque Seco Tropical (Bs-T, Bosque Húmedo Premontano (Bh-p y Bosque Muy Húmedo Premontano (Bmh-p. Las edificaciones estudiadas son iglesias vernaculares de la época de 1901-1950. La metodología permite identificar los factores principales que influyen dentro del comportamiento térmico interior y establecer cuáles modificaciones se pueden implementar para lograr mayor bienestar, tanto en los casos de estudio, como en futuros diseños con condiciones similares. Abstract The present study proposes and implements a methodology to analyze the behavior of existing buildings in response to specific climatic and geographic variables, through the use of digital thermodynamic simulations that allow modifications to improve internal comfort. The analysis was carried out by means of six case studies located in three zones of life of Costa Rica: Tropical Dry Forest (Bs-T, Premontane Wet Forest (Bh-p and Premontane Very Humid Forest (Bmh-p. The buildings studied are vernacular churches dating from 1901-1950. The methodology allows to identify the main factors that influence the internal thermal behavior and to establish which modifications can be implemented to achieve greater welfare, both in the case studies and in future designs with similar conditions.

  14. The FinFET Breakthrough and Networks of Innovation in the Semiconductor Industry, 1980-2005: Applying Digital Tools to the History of Technology.

    Science.gov (United States)

    O'Reagan, Douglas; Fleming, Lee

    2018-01-01

    The "FinFET" design for transistors, developed at the University of California, Berkeley, in the 1990s, represented a major leap forward in the semiconductor industry. Understanding its origins and importance requires deep knowledge of local factors, such as the relationships among the lab's principal investigators, students, staff, and the institution. It also requires understanding this lab within the broader network of relationships that comprise the semiconductor industry-a much more difficult task using traditional historical methods, due to the paucity of sources on industrial research. This article is simultaneously 1) a history of an impactful technology and its social context, 2) an experiment in using data tools and visualizations as a complement to archival and oral history sources, to clarify and explore these "big picture" dimensions, and 3) an introduction to specific data visualization tools that we hope will be useful to historians of technology more generally.

  15. Digital surveying and mapping of forest road network for development of a GIS tool for the effective protection and management of natural ecosystems

    Science.gov (United States)

    Drosos, Vasileios C.; Liampas, Sarantis-Aggelos G.; Doukas, Aristotelis-Kosmas G.

    2014-08-01

    In our time, the Geographic Information Systems (GIS) have become important tools, not only in the geosciences and environmental sciences, as well as virtually for all researches that require monitoring, planning or land management. The purpose of this paper was to develop a planning tool and decision making tool using AutoCAD Map software, ArcGIS and Google Earth with emphasis on the investigation of the suitability of forest roads' mapping and the range of its implementation in Greece in prefecture level. Integrating spatial information into a database makes data available throughout the organization; improving quality, productivity, and data management. Also working in such an environment, you can: Access and edit information, integrate and analyze data and communicate effectively. To select desirable information such as forest road network in a very early stage in the planning of silviculture operations, for example before the planning of the harvest is carried out. The software programs that were used were AutoCAD Map for the export in shape files for the GPS data, and ArcGIS in shape files (ArcGlobe), while Google Earth with KML files (Keyhole Markup Language) in order to better visualize and evaluate existing conditions, design in a real-world context and exchange information with government agencies, utilities, and contractors in both CAD and GIS data formats. The automation of the updating procedure and transfer of any files between agencies-departments is one of the main tasks of the integrated GIS-tool among the others should be addressed.

  16. Protocol for a prospective, school-based standardisation study of a digital social skills assessment tool for children: The Paediatric Evaluation of Emotions, Relationships, and Socialisation (PEERS) study.

    Science.gov (United States)

    Thompson, Emma J; Beauchamp, Miriam H; Darling, Simone J; Hearps, Stephen J C; Brown, Amy; Charalambous, George; Crossley, Louise; Darby, David; Dooley, Julian J; Greenham, Mardee; Jaimangal, Mohinder; McDonald, Skye; Muscara, Frank; Turkstra, Lyn; Anderson, Vicki A

    2018-02-08

    Humans are by nature a social species, with much of human experience spent in social interaction. Unsurprisingly, social functioning is crucial to well-being and quality of life across the lifespan. While early intervention for social problems appears promising, our ability to identify the specific impairments underlying their social problems (eg, social communication) is restricted by a dearth of accurate, ecologically valid and comprehensive child-direct assessment tools. Current tools are largely limited to parent and teacher ratings scales, which may identify social dysfunction, but not its underlying cause, or adult-based experimental tools, which lack age-appropriate norms. The present study describes the development and standardisation of Paediatric Evaluation of Emotions, Relationships, and Socialisation ( PEERS®), an iPad-based social skills assessment tool. The PEERS project is a cross-sectional study involving two groups: (1) a normative group, recruited from early childhood, primary and secondary schools across metropolitan and regional Victoria, Australia; and (2) a clinical group, ascertained from outpatient services at The Royal Children's Hospital Melbourne (RCH). The project aims to establish normative data for PEERS®, a novel and comprehensive app-delivered child-direct measure of social skills for children and youth. The project involves recruiting and assessing 1000 children aged 4.0-17.11 years. Assessments consist of an intellectual screen, PEERS® subtests, and PEERS-Q, a self-report questionnaire of social skills. Parents and teachers also complete questionnaires relating to participants' social skills. Main analyses will comprise regression-based continuous norming, factor analysis and psychometric analysis of PEERS® and PEERS-Q. Ethics approval has been obtained through the RCH Human Research Ethics Committee (34046), the Victorian Government Department of Education and Early Childhood Development (002318), and Catholic Education

  17. The Potential of Digital Technologies for Transforming Informed Consent Practices with Children and Young People in Social Research

    Directory of Open Access Journals (Sweden)

    Sarah Parsons

    2015-12-01

    Full Text Available How children and young people understand and exercise their autonomy, engagement and decision-making is fundamental to learning how to become active and engaged citizens, and to be socially included. Digital technologies are increasingly an integral part of children’s everyday lives and, therefore, valuable tools for supporting social inclusion. This paper discusses how digital technologies might positively support autonomy, engagement and decision-making through the lens of informed consent practices within social research. Current research practices are dominated by paper-based methods for obtaining informed consent which could be exclusionary for children and young people generally, and children with additional learning and support needs in particular. Digital technologies (laptops, PCs, tablet devices, smartphones offer the potential to support accessibility and understanding of ideas and activities, as well as engagement with and autonomy in decision-making and participation. This paper explores this potential as well as the challenges that researchers may face in this context.

  18. mobile Digital Access to a Web-enhanced Network (mDAWN): Assessing the Feasibility of Mobile Health Tools for Self-Management of Type-2 Diabetes.

    Science.gov (United States)

    Ho, Kendall; Newton, Lana; Boothe, Allison; Novak-Lauscher, Helen

    2015-01-01

    The mobile Digital Access to a Web-enhanced Network (mDAWN) program was implemented as an online, mobile self-management system to support patients with type-2 diabetes and their informal caregivers. Patients used wireless physiological sensors, received text messages, and had access to a secure web platform with health resources and semi-facilitated discussion forum. Outcomes were evaluated using (1) pre and post self-reported health behavior measures, (2) physiological outcomes, (3) program cost, and (4) in-depth participant interviews. The group had significantly decreased health distress, HbA1c levels, and systolic blood pressure. Participants largely saw the mDAWN as providing good value for the costs involved and found the program to be empowering in gaining control over their diabetes. mHealth programs have the potential to improve clinical outcomes through cost effective patient-led care for chronic illness. Further evaluation needs to examine integration of similar mHealth programs into the patient-physician relationship.

  19. Digital mammography

    International Nuclear Information System (INIS)

    Bick, Ulrich; Diekmann, Felix

    2010-01-01

    This state-of-the-art reference book provides in-depth coverage of all aspects of digital mammography, including detector technology, image processing, computer-aided diagnosis, soft-copy reading, digital workflow, and PACS. Specific advantages and disadvantages of digital mammography in comparison to screen-film mammography are thoroughly discussed. By including authors from both North America and Europe, the book is able to outline variations in the use, acceptance, and quality assurance of digital mammography between the different countries and screening programs. Advanced imaging techniques and future developments such as contrast mammography and digital breast tomosynthesis are also covered in detail. All of the chapters are written by internationally recognized experts and contain numerous high-quality illustrations. This book will be of great interest both to clinicians who already use or are transitioning to digital mammography and to basic scientists working in the field. (orig.)

  20. Digital Insights

    DEFF Research Database (Denmark)

    Knudsen, Gry Høngsmark

    , by incorporating media as both channel, frame, and apparatus for advertising response, the dissertation brings into attention that more aspects than the text-reader relationship influence ad response. Finally, the dissertation proposes the assemblage approach for exploring big data in consumer culture research...... and practices with digital media, when they meet and interpret advertising. Through studies of advertising response on YouTube and experiments with consumers’ response to digitally manipulated images, the dissertation shows how digital media practices facilitate polysemic and socially embedded advertising......This dissertation forwards the theory of digital consumer-response as a perspective to examine how digital media practices influence consumers’ response to advertising. Digital consumer-response is a development of advertising theory that encompasses how consumers employ their knowledge...

  1. Reflections on a digital upgrade

    Energy Technology Data Exchange (ETDEWEB)

    Tadjalli, M.

    2013-07-01

    Upon receiving US NRC's approval in 2010, the first RPS/ESPS digital upgrade using TELEPERM® XS technology was successfully installed in Spring of 2011 at the first Unit of a three-unit station, followed by the 2nd Unit installation in spring of 2012. Both Units' systems have been operating flawlessly since installation. After about two years of operation, a reflection on digital upgrades and lessons learned, from a vendor perspective, provides valuable insight for the commercial nuclear power industry.

  2. Digital Signage

    OpenAIRE

    Fischer, Karl Peter

    2011-01-01

    Digital Signage for in-store advertising at gas stations/retail stores in Germany: A field study Digital Signage networks provide a novel means of advertising with the advantage of easily changeable and highly customizable animated content. Despite the potential and increasing use of these media empirical research is scarce. In a field study at 8 gas stations (with integrated convenience stores) we studied the effect of digital signage advertising on sales for different products and servi...

  3. Digital landscapes of imagination

    Directory of Open Access Journals (Sweden)

    Starlight Vattano

    2014-05-01

    Full Text Available Urban landscapes that exist in the expression of an imaginative sequence define their shape through the digital representation. These hyperreal dimensions, combine imagination and representation as constituents a new reality, which follows the utopian, suprematist and constructivist theories, where the two-dimensional dynamics is transformed into an infinite space in which the imagination creates new forms. Although interpretations of the urban landscape film, put in place a correspondence between reality and virtuality, into the modeling of spatial movements, from which do not arise contraries, but only interdependencies. It is a particular type of representation that takes shape via the digital in motion and provides new tools for urban representation.

  4. Sports Digitalization

    DEFF Research Database (Denmark)

    Xiao, Xiao; Hedman, Jonas; Tan, Felix Ter Chian

    2017-01-01

    evolution, as digital technologies are increasingly entrenched in a wide range of sporting activities and for applications beyond mere performance enhancement. Despite such trends, research on sports digitalization in the IS discipline is surprisingly still nascent. This paper aims at establishing...... a discourse on sports digitalization within the discipline. Toward this, we first provide an understanding of the institutional characteristics of the sports industry, establishing its theoretical importance and relevance in our discipline; second, we reveal the latest trends of digitalization in the sports...

  5. Digital Marketing in the Business Environment

    OpenAIRE

    Ištvanić, Marin; Crnjac Milić, Dominika; Krpić, Zdravko

    2017-01-01

    Promotion of products has become an increasingly important component in the new digital age, mostly thanks to digital marketing. The traditional form of marketing is lagging behind digital marketing, which offers users new opportunities like personalized messages or answers to a search query. There are several ways to advertise on the internet, and in this paper, ways and tools will be presented that allow digital advertising as well as their advantages an...

  6. Quantitation of HBV cccDNA in anti-HBc-positive liver donors by droplet digital PCR: a new tool to detect occult infection.

    Science.gov (United States)

    Caviglia, Gian Paolo; Abate, Maria Lorena; Tandoi, Francesco; Ciancio, Alessia; Amoroso, Antonio; Salizzoni, Mauro; Saracco, Giorgio Maria; Rizzetto, Mario; Romagnoli, Renato; Smedile, Antonina

    2018-04-02

    The accurate diagnosis of occult HBV infection (OBI) requires the demonstration of HBV DNA in liver biopsies of HBsAg-negative subjects. However, in clinical practice a latent OBI is deduced by the finding of the antibody to the HB-core antigen (anti-HBc). We investigated the true prevalence of OBI and the molecular features of intrahepatic HBV in anti-HBc-positive subjects. The livers of 100 transplant donors (median age 68.2 years; 64 males, 36 females) positive for anti-HBc at standard serologic testing, were examined for total HBV DNA by nested-PCR and for the HBV covalently closed circular DNA (HBV cccDNA) with an in-house droplet digital PCR assay (ddPCR) (Linearity: R 2 = 0.9998; lower limit of quantitation and detection of 2.4 and 0.8 copies/10 5 cells, respectively). A true OBI status was found in 52% (52/100) of the subjects and cccDNA was found in 52% (27/52) of the OBI-positive, with a median 13 copies/10 5 cells (95% confidence interval 5-25). Using an assay specific for anti-HBc of IgG class, the median antibody level was significantly higher in HBV cccDNA-positive than negative donors (5.7 [3.6-9.7] vs. 17.0 [7.0-39.2] COI, p = 0.007). By multivariate analysis, an anti-HBc IgG value above a 4.4 cut-off index (COI) was associated with the finding of intrahepatic HBV cccDNA (OR = 8.516, p = 0.009); a lower value ruled out its presence with a negative predictive value of 94.6%. With a new in-house ddPCR-based method, intrahepatic HBV cccDNA was detectable in quantifiable levels in about half of the OBI cases examined. The titer of anti-HBc IgG may be a useful surrogate to predict the risk of OBI reactivation in immunosuppressed patients. The covalently closed circular DNA (cccDNA) form of the Hepatitis B virus (HBV) sustains the persistence of the virus even after decades of resolution of the florid infection (Occult HBV infection=OBI). In the present study we developed an highly sensitive method based on droplet digital PCR technology for the detection

  7. Digital teaching tools and global learning communities [v2; ref status: indexed, http://f1000r.es/5la

    Directory of Open Access Journals (Sweden)

    Mary Williams

    2015-07-01

    Full Text Available In 2009, we started a project to support the teaching and learning of university-level plant sciences, called Teaching Tools in Plant Biology. Articles in this series are published by the plant science journal, The Plant Cell (published by the American Society of Plant Biologists. Five years on, we investigated how the published materials are being used through an analysis of the Google Analytics pageviews distribution and through a user survey. Our results suggest that this project has had a broad, global impact in supporting higher education, and also that the materials are used differently by individuals in terms of their role (instructor, independent learner, student and geographical location. We also report on our ongoing efforts to develop a global learning community that encourages discussion and resource sharing.

  8. Digital Audiobooks

    DEFF Research Database (Denmark)

    Have, Iben; Pedersen, Birgitte Stougaard

    Audiobooks are rapidly gaining popularity with widely accessible digital downloading and streaming services. The paper is framing how the digital audiobook expands and changes the target groups for book publications and how it as an everyday activity is creating new reading experiences, places...

  9. Digital TMI

    Science.gov (United States)

    Rios, Joseph

    2012-01-01

    Presenting the current status of the Digital TMI project to visiting members of the FAA Command Center. Digital TMI is an effort to store national-level traffic management initiatives in a standards-compliant manner. Work is funded by the FAA.

  10. The value of digital tomosynthesis of the chest as a problem-solving tool for suspected pulmonary nodules and hilar lesions detected on chest radiography.

    Science.gov (United States)

    Galea, Angela; Dubbins, Paul; Riordan, Richard; Adlan, Tarig; Roobottom, Carl; Gay, David

    2015-05-01

    To assess the capability of digital tomosynthesis (DTS) of the chest compared to a postero-anterior (PA) and lateral chest radiograph (CXR) in the diagnosis of suspected but unconfirmed pulmonary nodules and hilar lesions detected on a CXR. Computed tomography (CT) was used as the reference standard. 78 patients with suspected non-calcified pulmonary nodules or hilar lesions on their CXR were included in the study. Two radiologists, blinded to the history and CT, prospectively analysed the CXR (PA and lateral) and the DTS images using a picture archiving and communication workstation and were asked to designate one of two outcomes: true intrapulmonary lesion or false intrapulmonary lesion. A CT of the chest performed within 4 weeks of the CXR was used as the reference standard. Inter-observer agreement and time to report the modalities were calculated for CXR and DTS. There were 34 true lesions confirmed on CT, 12 were hilar lesions and 22 were peripheral nodules. Of the 44 false lesions, 37 lesions were artefactual or due to composite shadow and 7 lesions were real but extrapulmonary simulating non-calcified intrapulmonary lesions. The PA and lateral CXR correctly classified 39/78 (50%) of the lesions, this improved to 75/78 (96%) with DTS. The sensitivity and specificity was 0.65 and 0.39 for CXR and 0.91 and 1 for DTS. Based on the DTS images, readers correctly classified all the false lesions but missed 3/34 true lesions. Two of the missed lesions were hilar in location and one was a peripheral nodule. All three missed lesions were incorrectly classified on DTS as composite shadow. DTS improves diagnostic confidence when compared to a repeat PA and lateral CXR in the diagnosis of both suspected hilar lesions and pulmonary nodules detected on CXR. DTS is able to exclude most peripheral pulmonary nodules but caution and further studies are needed to assess its ability to exclude hilar lesions. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  11. Digitized mammograms

    International Nuclear Information System (INIS)

    Bruneton, J.N.; Balu-Maestro, C.; Rogopoulos, A.; Chauvel, C.; Geoffray, A.

    1988-01-01

    Two observers conducted a blind evaluation of 100 mammography files, including 47 malignant cases. Films were read both before and after image digitization at 50 μm and 100 μm with the FilmDRSII. Digitization permitted better analysis of the normal anatomic structures and moderately improved diagnostic sensitivity. Searches for microcalcifications before and after digitization at 100 μm and 50 μm showed better analysis of anatomic structures after digitization (especially for solitary microcalcifications). The diagnostic benefit, with discovery of clustered microcalcifications, was more limited (one case at 100 μm, nine cases at 50 μm). Recognition of microcalcifications was clearly improved in dense breasts, which can benefit from reinterpretation after digitization at 50 μm rather 100μm

  12. 3D Digital Modelling

    DEFF Research Database (Denmark)

    Hundebøl, Jesper

    wave of new building information modelling tools demands further investigation, not least because of industry representatives' somewhat coarse parlance: Now the word is spreading -3D digital modelling is nothing less than a revolution, a shift of paradigm, a new alphabet... Research qeustions. Based...... on empirical probes (interviews, observations, written inscriptions) within the Danish construction industry this paper explores the organizational and managerial dynamics of 3D Digital Modelling. The paper intends to - Illustrate how the network of (non-)human actors engaged in the promotion (and arrest) of 3...... important to appreciate the analysis. Before turning to the presentation of preliminary findings and a discussion of 3D digital modelling, it begins, however, with an outline of industry specific ICT strategic issues. Paper type. Multi-site field study...

  13. Digital interactive learning of oral radiographic anatomy.

    Science.gov (United States)

    Vuchkova, J; Maybury, T; Farah, C S

    2012-02-01

    Studies reporting high number of diagnostic errors made from radiographs suggest the need to improve the learning of radiographic interpretation in the dental curriculum. Given studies that show student preference for computer-assisted or digital technologies, the purpose of this study was to develop an interactive digital tool and to determine whether it was more successful than a conventional radiology textbook in assisting dental students with the learning of radiographic anatomy. Eighty-eight dental students underwent a learning phase of radiographic anatomy using an interactive digital tool alongside a conventional radiology textbook. The success of the digital tool, when compared to the textbook, was assessed by quantitative means using a radiographic interpretation test and by qualitative means using a structured Likert scale survey, asking students to evaluate their own learning outcomes from the digital tool. Student evaluations of the digital tool showed that almost all participants (95%) indicated that the tool positively enhanced their learning of radiographic anatomy and interpretation. The success of the digital tool in assisting the learning of radiographic interpretation is discussed in the broader context of learning and teaching curricula, and preference (by students) for the use of this digital form when compared to the conventional literate form of the textbook. Whilst traditional textbooks are still valued in the dental curriculum, it is evident that the preference for computer-assisted learning of oral radiographic anatomy enhances the learning experience by enabling students to interact and better engage with the course material. © 2011 John Wiley & Sons A/S.

  14. A study on assessment of the length of styloid process in digital panoramic radiographs

    Directory of Open Access Journals (Sweden)

    Nikita Gupta

    2015-01-01

    Full Text Available Introduction: The styloid process (SP is an anatomical structure whose clinical importance is not well understood. Aims and Objectives: This study aimed to study the type of SP as per Langlais′ classification and to assess the feasibility of digital panoramic radiographs in measuring the length of SP. Materials and Methods: Eighty digital panoramic radiographs of patients with dental problems were retrieved from archives of our department as soft copies. The radiographs were taken using a digital panoramic system. The radiographic length of SP was measured on both sides using measurement toolbars on accompanying analysis software. The type of elongation patterns of SP was classified as per Langlais′ classification. Finally, the data were subjected to statistical analysis. Results: The average length of the left and right side SPs was 29.1882 ± 6.86 and 28.16 ± 6.44, respectively. Majority of patients were found to be asymptomatic, and Langlais′ Type I elongated SP was more common than others. Conclusion: Digital panoramic radiographs are valuable tools in early detection of elongated SP. Digital radiographs help in avoiding a misdiagnosis of tonsillar pain or pain of dental, pharyngeal, or muscular region.

  15. Demonstrating DREAM: A Digital Resource Exchange about Music

    Science.gov (United States)

    Upitis, Rena; Boese, Karen; Abrami, Philip C.

    2015-01-01

    The Digital Resource Exchange About Music (DREAM) is an online tool for exchanging information about digital learning tools for music education. DREAM was designed by our team to encourage music teachers to learn about digital resources related to learning to play a musical instrument, both in classroom and independent music studio settings. In…

  16. The value of digital tomosynthesis of the chest as a problem-solving tool for suspected pulmonary nodules and hilar lesions detected on chest radiography

    Energy Technology Data Exchange (ETDEWEB)

    Galea, Angela, E-mail: galeaangie@gmail.com [Peninsula Radiology Academy, William Prance Road, Plymouth PL65WR (United Kingdom); Dubbins, Paul, E-mail: Paul.dubbins@nhs.net [Plymouth Hospital NHS Trust, Plymouth PL68DH (United Kingdom); Riordan, Richard, E-mail: richardriordan@nhs.net [Plymouth Hospital NHS Trust, Plymouth PL68DH (United Kingdom); Adlan, Tarig, E-mail: tarig.adlan@nhs.net [Plymouth Hospital NHS Trust, Plymouth PL68DH (United Kingdom); Roobottom, Carl, E-mail: carl.roobotoom@nhs.net [Plymouth Hospital NHS Trust, Plymouth PL68DH (United Kingdom); Gay, David, E-mail: davegay@nhs.net [Plymouth Hospital NHS Trust, Plymouth PL68DH (United Kingdom)

    2015-05-15

    Graphical abstract: When compared to CXR, DTS has: • Superior resolution • Better assessment of location in the AP dimension (better at locating a pleural or intrapulmonary lesion) • Better characterisation (better at distinguishing between calcified plaque and soft tissue) • Removes composite artefact caused by overlying anatomical structures (such as the ribs or pulmonary vessels) DTS has improved sensitivity, specificity and accuracy when compared to CXR. - Highlights: • DTS is a type of limited angle tomography. Sixty coronal reconstructed images of the chest are produced that combine the superior resolution of radiography with the tomographic benefits of computed tomography. • The sensitivity for detecting a suspected lung lesions is 0.65 with CXR and 0.91 for DTS. • The high specificity of DTS (1) and the high negative predictive value (0.94) are similar to CT and suggest that if the DTS is normal patients do not need further assessment with CT with significant potential dose savings. • 50% of suspected lesions were resolved with CXR, this improved to 96% with DTS. - Abstract: Objectives: To assess the capability of digital tomosynthesis (DTS) of the chest compared to a postero-anterior (PA) and lateral chest radiograph (CXR) in the diagnosis of suspected but unconfirmed pulmonary nodules and hilar lesions detected on a CXR. Computed tomography (CT) was used as the reference standard. Materials and method: 78 patients with suspected non-calcified pulmonary nodules or hilar lesions on their CXR were included in the study. Two radiologists, blinded to the history and CT, prospectively analysed the CXR (PA and lateral) and the DTS images using a picture archiving and communication workstation and were asked to designate one of two outcomes: true intrapulmonary lesion or false intrapulmonary lesion. A CT of the chest performed within 4 weeks of the CXR was used as the reference standard. Inter-observer agreement and time to report the modalities

  17. The value of digital tomosynthesis of the chest as a problem-solving tool for suspected pulmonary nodules and hilar lesions detected on chest radiography

    International Nuclear Information System (INIS)

    Galea, Angela; Dubbins, Paul; Riordan, Richard; Adlan, Tarig; Roobottom, Carl; Gay, David

    2015-01-01

    Graphical abstract: When compared to CXR, DTS has: • Superior resolution • Better assessment of location in the AP dimension (better at locating a pleural or intrapulmonary lesion) • Better characterisation (better at distinguishing between calcified plaque and soft tissue) • Removes composite artefact caused by overlying anatomical structures (such as the ribs or pulmonary vessels) DTS has improved sensitivity, specificity and accuracy when compared to CXR. - Highlights: • DTS is a type of limited angle tomography. Sixty coronal reconstructed images of the chest are produced that combine the superior resolution of radiography with the tomographic benefits of computed tomography. • The sensitivity for detecting a suspected lung lesions is 0.65 with CXR and 0.91 for DTS. • The high specificity of DTS (1) and the high negative predictive value (0.94) are similar to CT and suggest that if the DTS is normal patients do not need further assessment with CT with significant potential dose savings. • 50% of suspected lesions were resolved with CXR, this improved to 96% with DTS. - Abstract: Objectives: To assess the capability of digital tomosynthesis (DTS) of the chest compared to a postero-anterior (PA) and lateral chest radiograph (CXR) in the diagnosis of suspected but unconfirmed pulmonary nodules and hilar lesions detected on a CXR. Computed tomography (CT) was used as the reference standard. Materials and method: 78 patients with suspected non-calcified pulmonary nodules or hilar lesions on their CXR were included in the study. Two radiologists, blinded to the history and CT, prospectively analysed the CXR (PA and lateral) and the DTS images using a picture archiving and communication workstation and were asked to designate one of two outcomes: true intrapulmonary lesion or false intrapulmonary lesion. A CT of the chest performed within 4 weeks of the CXR was used as the reference standard. Inter-observer agreement and time to report the modalities

  18. The Born Digital Graduate: Multiple Representations of and within Digital Humanities PhD Theses

    Science.gov (United States)

    Webb, Sharon; Teehan, Aja; Keating, John

    2013-01-01

    This chapter examines the production and utilisation of digital tools to create and present a born-digital theses, and in so doing, considers the changing function of traditional theses. It asks how (relatively) new technologies and methodologies should affect the representation and function of graduate scholarship in the Digital Humanities (DH),…

  19. Analyzing gigahertz bunch length instabilities with a digital signal processor

    International Nuclear Information System (INIS)

    Stege, R.E. Jr.; Krejcik, P.; Minty, M.G.

    1992-11-01

    A bunch length instability, nicknamed the ''sawtooth'', because of its transient behavior, has been observed at high current running in the Stanford Linear Collider (SLC) electron damping ring. The incompatibility of this instability with successful SLC naming prompted its study using a high bandwidth real-time spectrum analyzer, the Tektronix 3052 digital signal processor (DSP) system. This device has been used to study energy ramping in storage rings but this is the first time it has been used to study transient instability phenomena. It is a particularly valuable tool for use in understanding non-linear, multiple frequency phenomena. The frequency range of this device has been extended through the use of radio frequency (RF) down converters. This paper describes the measurement setup and presents some of the results

  20. Digital Ethics/Going Digital.

    Science.gov (United States)

    Wilson, Bradley

    1996-01-01

    Finds that the recent National Press Photographers Association code of ethics can serve as a model for any photography staff. Discusses how digital imaging is becoming commonplace in classrooms, due to decreasing costs and easier software. Explains digital terminology. Concludes that time saved in the darkroom and at the printer is now spent on…

  1. Remediating a design tool

    DEFF Research Database (Denmark)

    Jensen, Mads Møller; Rädle, Roman; Klokmose, Clemens N.

    2018-01-01

    digital sticky notes setup. The paper contributes with a nuanced understanding of what happens when remediating a physical design tool into digital space, by emphasizing focus shifts and breakdowns caused by the technology, but also benefits and promises inherent in the digital media. Despite users......' preference for creating physical notes, handling digital notes on boards was easier and the potential of proper documentation make the digital setup a possible alternative. While the analogy in our remediation supported a transfer of learned handling, the users' experiences across technological setups impact......Sticky notes are ubiquitous in design processes because of their tangibility and ease of use. Yet, they have well-known limitations in professional design processes, as documentation and distribution are cumbersome at best. This paper compares the use of sticky notes in ideation with a remediated...

  2. Digital stethoscope: technology update

    Science.gov (United States)

    Swarup, Supreeya; Makaryus, Amgad N

    2018-01-01

    Cardiovascular disease (CVD) is recognized as the leading cause of mortality throughout the world. About one-third of global mortality is attributable to CVD. In addition to clinical presentation, specific clinical exam findings can assist in treating and preventing CVD. CVD may initially manifest as pulmonary pathology, and thus, accurate cardiopulmonary auscultation is paramount to establishing accurate diagnosis. One of the most powerful tools available to physicians is the stethoscope. The stethoscope first emerged in the year 1818, invented by a French physician, René Laennec. Since then, the initial modest monaural wooden tube has evolved into a sophisticated digital device. This paper provides an analysis of the evolution of the stethoscope as well as highlights the advancement made by the modern digital stethoscope including the application of this tool in advancing care for patients suffering from CVD. PMID:29379321

  3. Digital radiography

    International Nuclear Information System (INIS)

    Coulomb, M.; Dal Soglio, S.; Pittet-Barbier, L.; Ranchoup, Y.; Thony, F.; Ferretti, G.; Robert, F.

    1992-01-01

    Digital projection radiography may replace conventional radiography some day, provided it can meet several requirements: equal or better diagnostic effectiveness of the screen-film systems; reasonable image cost; real improvement in the productivity of the Departments of Imaging. All digital radiographic systems include an X-ray source, an image acquisition and formatting sub-system, a display and manipulation sub-system, and archiving subsystem and a laser editing system, preferably shared by other sources of digital images. Three digitization processes are available: digitization of the radiographic film, digital fluorography and phospholuminescent detectors with memory. The advantages of digital fluoroscopy are appealing: real-time image acquisition, suppression of cassettes; but its disadvantages are far from negligible: it cannot be applied to bedside radiography, the field of examination is limited, and the wide-field spatial resolution is poor. Phospholuminescent detectors with memory have great advantages: they can be used for bedside radiographs and on all the common radiographic systems; spatial resolution is satisfactory; its current disadvantages are considerable. These two systems, have common properties making up the entire philosophy of digital radiology and specific features that must guide our choice according to the application. Digital fluorography is best applied in pediatric radiology. However, evaluation works have showed that it was applicable with sufficient quality to many indications of general radiology in which a fluoroscopic control and fast acquisition of the images are essential; the time gained on the examination may be considerable, as well as the savings on film. Detectors with memory are required for bedside radiographs, in osteoarticular and thoracic radiology, in all cases of traumatic emergency and in the resuscitation and intensive care departments

  4. Digital imaging in dentistry.

    Science.gov (United States)

    Essen, S Donovan

    2011-01-01

    Information technology is vital to operations, marketing, accounting, finance and administration. One of the most exciting and quickly evolving technologies in the modern dental office is digital applications. The dentist is often the business manager, information technology officer and strategic planning chief for his small business. The information systems triangle applies directly to this critical manager supported by properly trained ancillary staff and good equipment. With emerging technology driving all medical disciplines and the rapid pace at which it emerges, it is vital for the contemporary practitioner to keep abreast of the newest information technology developments. This article compares the strategic and operational advantages of digital applications, specifically imaging. The focus of this paper will be on digital radiography (DR), 3D computerized tomography, digital photography and digitally-driven CAD/CAM to what are now considered obsolescing modalities and contemplates what may arrive in the future. It is the purpose of this essay to succinctly evaluate the decisions involved in the role, application and implications of employing this tool in the dental environment

  5. Becoming digital

    DEFF Research Database (Denmark)

    Pors, Anja Svejgaard

    2015-01-01

    . An ethnographic account of how digital reforms are implemented in practice shows how street-level bureaucrat’s classic tasks such as specialized casework are being reconfigured into educational tasks that promote the idea of “becoming digital”. In the paper, the author argues that the work of “becoming digital....... Originality/value: The study contributes to ethnographic research in public administration by combining two separate subfields, e-government and street-level bureaucracy, to discern recent transformations in public service delivery. In the digital era, tasks, control and equality are distributed in ways...

  6. Digital Snaps

    DEFF Research Database (Denmark)

    Sandbye, Mette; Larsen, Jonas

    . Distance as the New Punctum / Mikko Villi -- pt. II. FAMILY ALBUMS IN TRANSITION -- ch. 4. How Digital Technologies Do Family Snaps, Only Better / Gillian Rose -- ch. 5. Friendship Photography: Memory, Mobility and Social Networking / Joanne Garde-Hansen -- ch. 6. Play, Process and Materiality in Japanese...... -- ch. 9. Retouch Yourself: The Pleasures and Politics of Digital Cosmetic Surgery / Tanya Sheehan -- ch. 10. Virtual Selves: Art and Digital Autobiography / Louise Wolthers -- ch. 11. Mobile-Media Photography: New Modes of Engagement / Michael Shanks and Connie Svabo....

  7. Digital electronics

    CERN Document Server

    Morris, John

    2013-01-01

    An essential companion to John C Morris's 'Analogue Electronics', this clear and accessible text is designed for electronics students, teachers and enthusiasts who already have a basic understanding of electronics, and who wish to develop their knowledge of digital techniques and applications. Employing a discovery-based approach, the author covers fundamental theory before going on to develop an appreciation of logic networks, integrated circuit applications and analogue-digital conversion. A section on digital fault finding and useful ic data sheets completes th

  8. Digital radiography

    International Nuclear Information System (INIS)

    Zani, M.L.

    2002-01-01

    X-ray radiography is a very common technique used to check the homogeneity of a material or the inside of a mechanical part. Generally the radiation that goes through the material to check, produced an image on a sensitized film. This method requires time because the film needs to be developed, digital radiography has no longer this inconvenient. In digital radiography the film is replaced by digital data and can be processed as any computer file. This new technique is promising but its main inconvenient is that today its resolution is not so good as that of film radiography. (A.C.)

  9. Digital radiography

    International Nuclear Information System (INIS)

    Kusano, Shoichi

    1993-01-01

    Firstly, from an historic point of view, fundamental concepts on digital imaging were reviewed to provide a foundation for discussion of digital radiography. Secondly, this review summarized the results of ongoing research in computed radiography that replaces the conventional film-screen system with a photo-stimulable phosphor plate; and thirdly, image quality, radiation protection, and image processing techniques were discussed with emphasis on picture archiving and communication system environment as our final goal. Finally, future expansion of digital radiography was described based on the present utilization of computed tomography at the National Defense Medical College Hospital. (author) 60 refs

  10. Inside the Digital Revolution

    OpenAIRE

    Brooke, H.

    2016-01-01

    Technology and transparency combined to create the digital revolution, which in turn has ushered in a new form of monitory democracy. Communicative abun-dance and global interconnection mean the democratic franchise can expand and deepen, but the author argues that it matters who is made transparent and for what purpose. Content and context matter. Technology and transparency can be used to strengthen democracy by opening up government to citizens, but the same tools can also be used by the s...

  11. SU-F-I-14: 3D Breast Digital Phantom for XACT Imaging

    Energy Technology Data Exchange (ETDEWEB)

    Tang, S; Laaroussi, R; Chen, J; Samant, P; Xiang, L [University of Oklahoma, Norman, OK (United States); Chen, Y; Ahmad, S [University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States); Yang, K [Massachusetts General Hospital, Boston, MA (United States)

    2016-06-15

    Purpose: The X-ray induced acoustic computed tomography (XACT) is a new imaging modality which combines X-ray contrast and high ultrasonic resolution in a single modality. Using XACT in breast imaging, a 3D breast volume can be imaged by only one pulsed X-ray radiation, which could dramatically reduce the imaging dose for patients undergoing breast cancer screening and diagnosis. A 3D digital phantom that contains both X-ray properties and acoustic properties of different tissue types is indeed needed for developing and optimizing the XACT system. The purpose of this study is to offer a realistic breast digital phantom as a valuable tool for improving breast XACT imaging techniques and potentially leading to better diagnostic outcomes. Methods: A series of breast CT images along the coronal plane from a patient who has breast calcifications are used as the source images. A HU value based segmentation algorithm is employed to identify breast tissues in five categories, namely the skin tissue, fat tissue, glandular tissue, chest bone and calcifications. For each pixel, the dose related parameters, such as material components and density, and acoustic related parameters, such as frequency-dependent acoustic attenuation coefficient and bandwidth, are assigned based on tissue types. Meanwhile, other parameters which are used in sound propagation, including the sound speed, thermal expansion coefficient, and heat capacity are also assigned to each tissue. Results: A series of 2D tissue type image is acquired first and the 3D digital breast phantom is obtained by using commercial 3D reconstruction software. When giving specific settings including dose depositions and ultrasound center frequency, the X-ray induced initial pressure rise can be calculated accordingly. Conclusion: The proposed 3D breast digital phantom represents a realistic breast anatomic structure and provides a valuable tool for developing and evaluating the system performance for XACT.

  12. Valuable Virality

    NARCIS (Netherlands)

    Akpinar, E.; Berger, Jonah

    2017-01-01

    Given recent interest in social media, many brands now create content that they hope consumers will view and share with peers. While some campaigns indeed go “viral,” their value to the brand is limited if they do not boost brand evaluation or increase purchase. Consequently, a key question is how

  13. Valuable Connections

    DEFF Research Database (Denmark)

    Kjærsgaard, Mette Gislev; Smith, Rachel Charlotte

    2014-01-01

    , as well as design, production and use, we might need to rethink the role of ethnography within user centred design and business development. Here the challenge is less about ”getting closer” to user needs and real-life contexts, through familiarization, mediation, and facilitation, and more about creating...... a critical theoretically informed distance from which to perceive and reflect upon complex interconnections between people, technology, business and design, as well as our roles as researchers and designers within these....

  14. GPLS VME Module: A Diagnostic and Display Tool for NSLS Micro Systems

    International Nuclear Information System (INIS)

    Ramamoorthy, S.; Smith, J. D.

    1999-01-01

    The General Purpose Light Source VME module is an integral part of every front-end micro in the NSLS control system. The board incorporates features such as a video character generator, clock signals, time-of-day clock, a VME bus interrupter and general-purpose digital inputs and outputs. This module serves as a valuable diagnostic and real-time display tool for the micro development as well as for the find operational systems. This paper describes the functions provided by the board for the NSLS micro control monitor software

  15. Line lessons: Enbridge's Northern Line provides valuable information

    Energy Technology Data Exchange (ETDEWEB)

    Ross, E.

    2000-02-01

    Experiences gained from the 14-year old Norman Wells crude oil pipeline in the Northwest Territories may provide operators with valuable insights in natural gas pipeline developments in northern Canada. The Norman Wells line is the first and only long-distance pipeline in North America buried in permafrost and has proven to be a veritable laboratory on pipeline behaviour in extremely cold climates which also happen to be discontinuous at the same time. The line was built by Enbridge with a 'limit state' design, i e. it was built to move within the permafrost within certain limits, the amount of movement depending upon the area in which the line was built. This technology, which is still cutting edge, allows the pipeline to react to the freeze-thaw cycle without being affected by the heaving and resettling. The knowledge gained from the Norman Wells Line has come in very useful in the more recent AltaGas Services project transporting natural gas from a nearby well into the the town of Inuvik. Enbridge also contributed to the development of various pipeline inspection tools such as the 'Geopig' which travels within the pipeline and can pinpoint the location of problems practically within a matter of inches, and the 'Rolligon' an amphibious vehicle with five-foot diameter rubber tires that displaces only two pounds per square inch, leaving barely a track as it travels along the right-of-way during times other than winter.

  16. Application of high-resolution melting analysis for authenticity testing of valuable Dendrobium commercial products.

    Science.gov (United States)

    Dong, Xiaoman; Jiang, Chao; Yuan, Yuan; Peng, Daiyin; Luo, Yuqin; Zhao, Yuyang; Huang, Luqi

    2018-01-01

    The accurate identification of botanical origin in commercial products is important to ensure food authenticity and safety for consumers. The Dendrobium species have long been commercialised as functional food supplements and herbal medicines in Asia. Three valuable Dendrobium species, namely Dendrobium officinale, D. huoshanense and D. moniliforme, are often mutually adulterated in trade products in pursuit of higher profit. In this paper, a rapid and reliable semi-quantitative method for identifying the botanical origin of Dendrobium products in terminal markets was developed using high-resolution melting (HRM) analysis with specific primer pairs to target the trnL-F region. The HRM analysis method detected amounts of D. moniliforme adulterants as low as 1% in D. huoshanense or D. officinale products. The results have demonstrated that HRM analysis is a fast and effective tool for the differentiation of these Dendrobium species both for their authenticity as well as for the semi-quantitative determination of the purity of their processed products. © 2017 Society of Chemical Industry. © 2017 Society of Chemical Industry.

  17. Digital fabrication

    CERN Document Server

    2012-01-01

    The Winter 2012 (vol. 14 no. 3) issue of the Nexus Network Journal features seven original papers dedicated to the theme “Digital Fabrication”. Digital fabrication is changing architecture in fundamental ways in every phase, from concept to artifact. Projects growing out of research in digital fabrication are dependent on software that is entirely surface-oriented in its underlying mathematics. Decisions made during design, prototyping, fabrication and assembly rely on codes, scripts, parameters, operating systems and software, creating the need for teams with multidisciplinary expertise and different skills, from IT to architecture, design, material engineering, and mathematics, among others The papers grew out of a Lisbon symposium hosted by the ISCTE-Instituto Universitario de Lisboa entitled “Digital Fabrication – A State of the Art”. The issue is completed with four other research papers which address different mathematical instruments applied to architecture, including geometric tracing system...

  18. Digital Relationships

    DEFF Research Database (Denmark)

    Ledborg Hansen, Richard

    -­rich information and highly interesting communication are sky-­high and rising. With a continuous increase in digitized communication follows a decrease in face-­to-­face encounters and our ability to engage in inter-­personal relationships are suffering for it (Davis, 2013). The behavior described in this paper......-­‐Jones, 2011) for increases in effectiveness and efficiency we indiscriminately embrace digital communication and digitized information dissemination with enthusiasm – at the risk of ignoring the potentially dark side of technology. However, technology also holds a promise for better understanding precisely...... for the same reasons – that the growing amount of digitized communication “out there” represents data waiting to be sifted, analyzed and decoded. In this paper “Facebook behavior” refers to a particular behavior characterized by presenting your self and representations of selected self in the hope of getting...

  19. Digital Discretion

    DEFF Research Database (Denmark)

    Busch, Peter Andre; Zinner Henriksen, Helle

    2018-01-01

    discretion is suggested to reduce this footprint by influencing or replacing their discretionary practices using ICT. What is less researched is whether digital discretion can cause changes in public policy outcomes, and under what conditions such changes can occur. Using the concept of public service values......This study reviews 44 peer-reviewed articles on digital discretion published in the period from 1998 to January 2017. Street-level bureaucrats have traditionally had a wide ability to exercise discretion stirring debate since they can add their personal footprint on public policies. Digital......, we suggest that digital discretion can strengthen ethical and democratic values but weaken professional and relational values. Furthermore, we conclude that contextual factors such as considerations made by policy makers on the macro-level and the degree of professionalization of street...

  20. Digital image analysis of X-ray television with an image digitizer

    International Nuclear Information System (INIS)

    Mochizuki, Yasuo; Akaike, Hisahiko; Ogawa, Hitoshi; Kyuma, Yukishige

    1995-01-01

    When video signals of X-ray fluoroscopy were transformed from analog-to-digital ones with an image digitizer, their digital characteristic curves, pre-sampling MTF's and digital Wiener spectral could be measured. This method was advant ageous in that it was able to carry out data sampling because the pixel values inputted could be verified on a CRT. The system of image analysis by this method is inexpensive and effective in evaluating the image quality of digital system. Also, it is expected that this method can be used as a tool for learning the measurement techniques and physical characteristics of digital image quality effectively. (author)

  1. Digital Collections, Digital Libraries & the Digitization of Cultural Heritage Information.

    Science.gov (United States)

    Lynch, Clifford

    2002-01-01

    Discusses digital collections and digital libraries. Topics include broadband availability; digital rights protection; content, both non-profit and commercial; digitization of cultural content; sustainability; metadata harvesting protocol; infrastructure; authorship; linking multiple resources; data mining; digitization of reference works;…

  2. digital natives and digital immigrants

    OpenAIRE

    Cardina, Bruno; Francisco, Jerónimo; Reis, Pedro; trad. Silva, Fátima

    2011-01-01

    This article focuses on the generational gaps in school learning. Initially, we have tried to provide the framework in relation to the term digital native in order to understand the key aspects of the generation born after the advent and the global use of the Internet. They were found to be “multitasking” people, linked to technology and connectivity, as opposed to digital immigrants, born in an earlier period and seeking to adapt to the technological world. We also present some r...

  3. GBEP pilot Ghana. Very valuable and successful - a follow-up is suggested. Conclusions and recommendations

    Energy Technology Data Exchange (ETDEWEB)

    Hanekamp, E.; Vissers, P.; De Lint, S. [Partners for Innovation, Amsterdam (Netherlands)

    2013-02-15

    The Global Bio-Energy Partnership (GBEP) has developed a set of 24 sustainability indicators applicable to all forms of bio-energy and aimed at voluntary use by national governments. The GBEP indicators enable governments to assess the bio-energy sector and to develop new policies related to sustainable bio-energy production and use. These indicators have been piloted in Ghana. Modern bio-energy is a big opportunity for the region, which is why NL Agency adopted and supported the pilot, together with the Global Bio-Energy Partnership (GBEP). The pilot project also was supported by the ECOWAS Regional Centre for Renewable Energy and Energy Efficiency (ECREEE) and has been coordinated by the Council for Scientific and Industrial Research (CSIR). The Ghana Energy Commission took the responsibility to involve policymakers. Partners for Innovation was commissioned by NL Agency to provide technical assistance for the pilot. The main aims of the project are: (a) Enhancing the capacity of the host country Ghana (and ECOWAS) to use the GBEP indicators as a tool for assessing the sustainability of its bio-energy sector and/or developing sustainable bio-energy policies; (b) Learning lessons on how to apply the indicators and how to enhance their practicality as a tool for policymakers and giving this as feedback to the GBEP community. Three Ghanaian research institutes (CSIR-FORIG, CSIR-IIR and UG-ISSER) have studied 11 out of the 24 GBEP indicators in the pilot. The pilot has been a success: the 24 sustainability criteria appear to be very valuable for Ghana. As such the indicators provide, also for other governments, a practical tool to assess sustainability of biomass sectors and policies. The report also shows important insights on data availability and quality, and on the applicability of the GBEP indicators in Ghana. The final report provides concrete recommendations on: (1) How Ghana can proceed with the GBEP sustainability indicators; and (2) The lessons learned for

  4. Chronopolis Digital Preservation Network

    Directory of Open Access Journals (Sweden)

    David Minor

    2010-07-01

    Full Text Available The Chronopolis Digital Preservation Initiative, one of the Library of Congress’ latest efforts to collect and preserve at-risk digital information, has completed its first year of service as a multi-member partnership to meet the archival needs of a wide range of domains.Chronopolis is a digital preservation data grid framework developed by the San Diego Supercomputer Center (SDSC at UC San Diego, the UC San Diego Libraries (UCSDL, and their partners at the National Center for Atmospheric Research (NCAR in Colorado and the University of Maryland's Institute for Advanced Computer Studies (UMIACS.Chronopolis addresses a critical problem by providing a comprehensive model for the cyberinfrastructure of collection management, in which preserved intellectual capital is easily accessible, and research results, education material, and new knowledge can be incorporated smoothly over the long term. Integrating digital library, data grid, and persistent archive technologies, Chronopolis has created trusted environments that span academic institutions and research projects, with the goal of long-term digital preservation.A key goal of the Chronopolis project is to provide cross-domain collection sharing for long-term preservation. Using existing high-speed educational and research networks and mass-scale storage infrastructure investments, the partnership is leveraging the data storage capabilities at SDSC, NCAR, and UMIACS to provide a preservation data grid that emphasizes heterogeneous and highly redundant data storage systems.In this paper we will explore the major themes within Chronopolis, including:a The philosophy and theory behind a nationally federated data grid for preservation. b The core tools and technologies used in Chronopolis. c The metadata schema that is being developed within Chronopolis for all of the data elements. d Lessons learned from the first year of the project.e Next steps in digital preservation using Chronopolis: how we

  5. Digital storytelling teaching robotics basics

    OpenAIRE

    Michele Scandola; Paolo Fiorini

    2013-01-01

    Digital Storytelling (DST) is a powerful tool for teaching complex concepts. DSTs are typically used in the humanities but several papers have shown that they are also a wonderful tool for the sciences because they are more involving, contextualized and can easily lead to deeper understanding. In the classical use of DST the story is thecontent, while the digital medium is the way of telling it. Our approach is slightly different: the story is not the content but a glue for the main contents,...

  6. Scientific Digital Libraries, Interoperability, and Ontologies

    Science.gov (United States)

    Hughes, J. Steven; Crichton, Daniel J.; Mattmann, Chris A.

    2009-01-01

    Scientific digital libraries serve complex and evolving research communities. Justifications for the development of scientific digital libraries include the desire to preserve science data and the promises of information interconnectedness, correlative science, and system interoperability. Shared ontologies are fundamental to fulfilling these promises. We present a tool framework, some informal principles, and several case studies where shared ontologies are used to guide the implementation of scientific digital libraries. The tool framework, based on an ontology modeling tool, was configured to develop, manage, and keep shared ontologies relevant within changing domains and to promote the interoperability, interconnectedness, and correlation desired by scientists.

  7. Digital evidence

    Directory of Open Access Journals (Sweden)

    Lukić Tatjana

    2012-01-01

    Full Text Available Although computer makes human activities faster and easier, innovating and creating new forms of work and other kinds of activities, it also influenced the criminal activity. The development of information technology directly affects the development of computer forensics without which, it can not even imagine the discovering and proving the computer offences and apprehending the perpetrator. Information technology and computer forensic allows us to detect and prove the crimes committed by computer and capture the perpetrators. Computer forensics is a type of forensics which can be defined as a process of collecting, preserving, analyzing and presenting digital evidence in court proceedings. Bearing in mind, that combat against crime, in which computers appear as an asset or object of the offense, requires knowledge of digital evidence as well as specific rules and procedures, the author in this article specifically addresses the issues of digital evidence, forensic (computer investigation, specific rules and procedures for detecting, fixing and collecting digital evidence and use of this type of evidence in criminal proceedings. The author also delas with international standards regarding digital evidence and cyber-space investigation.

  8. Digital watermark

    Directory of Open Access Journals (Sweden)

    Jasna Maver

    2000-01-01

    Full Text Available The huge amount of multimedia contents available on the World-Wide-Web is beginning to raise the question of their protection. Digital watermarking is a technique which can serve various purposes, including intellectual property protection, authentication and integrity verification, as well as visible or invisible content labelling of multimedia content. Due to the diversity of digital watermarking applicability, there are many different techniques, which can be categorised according to different criteria. A digital watermark can be categorised as visible or invisible and as robust or fragile. In contrast to the visible watermark where a visible pattern or image is embedded into the original image, the invisible watermark does not change the visual appearance of the image. The existence of such a watermark can be determined only through a watermark ex¬traction or detection algorithm. The robust watermark is used for copyright protection, while the fragile watermark is designed for authentication and integrity verification of multimedia content. A watermark must be detectable or extractable to be useful. In some watermarking schemes, a watermark can be extracted in its exact form, in other cases, we can detect only whether a specific given watermarking signal is present in an image. Digital libraries, through which cultural institutions will make multimedia contents available, should support a wide range of service models for intellectual property protection, where digital watermarking may play an important role.

  9. Digital Creativity

    DEFF Research Database (Denmark)

    Petersson Brooks, Eva; Brooks, Anthony Lewis

    2014-01-01

    This paper reports on a study exploring the outcomes from children’s play with technology in early childhood learning practices. The paper addresses questions related to how digital technology can foster creativity in early childhood learning environments. It consists of an analysis of children......’s interaction with the KidSmart furniture focusing on digital creativity potentials and play values suggested by the technology. The study applied a qualitative approach and included125 children (aged three to five), 10 pedagogues, and two librarians. The results suggests that educators should sensitively...... consider intervening when children are interacting with technology, and rather put emphasize into the integration of the technology into the environment and to the curriculum in order to shape playful structures for children’s digital creativity....

  10. Digital radiography

    International Nuclear Information System (INIS)

    Rath, M.; Lissner, J.; Rienmueller, R.; Haendle, J.; Siemens A.G., Erlangen

    1984-01-01

    Using a prototype of an electronic, universal examination unit equipped with a special X-ray TV installation, spotfilm exposures and digital angiographies with high spatial resolution and wide-range contrast could be made in the clinic for the first time. With transvenous contrast medium injection, the clinical results of digital angiography show excellent image quality in the region of the carotids and renal arteries as well as the arteries of the extremities. The electronic series exposures have an image quality almost comparable to the quality obtained with cutfilm changers in conventional angiography. There are certain limitations due to the input field of 25 cm X-ray image intensified used. In respect of the digital angiography imaging technique, the electronic universal unit is fully suitable for clinical application. (orig.) [de

  11. Digital Hadron Calorimetry

    Science.gov (United States)

    Bilki, Burak

    2018-03-01

    The Particle Flow Algorithms attempt to measure each particle in a hadronic jet individually, using the detector providing the best energy/momentum resolution. Therefore, the spatial segmentation of the calorimeter plays a crucial role. In this context, the CALICE Collaboration developed the Digital Hadron Calorimeter. The Digital Hadron Calorimeter uses Resistive Plate Chambers as active media and has a 1-bit resolution (digital) readout of 1 × 1 cm2 pads. The calorimeter was tested with steel and tungsten absorber structures, as well as with no absorber structure, at the Fermilab and CERN test beam facilities over several years. In addition to conventional calorimetric measurements, the Digital Hadron Calorimeter offers detailed measurements of event shapes, rigorous tests of simulation models and various tools for improved performance due to its very high spatial granularity. Here we report on the results from the analysis of pion and positron events. Results of comparisons with the Monte Carlo simulations are also discussed. The analysis demonstrates the unique utilization of detailed event topologies.

  12. The Use and Effectiveness of Digital Marketing. Case - Foundation for the Arts and Humanities

    OpenAIRE

    Vigandt, Valeriia

    2017-01-01

    In the course of completing this paper, the topic of digital marketing was studied, including such areas as digital marketing in general and its basics, advantages of us-ing digital marketing, digital marketing tools, digital marketing application including planning and implementation, evaluation of a digital marketing campaign effective-ness, and, finally, the matters and ideas that ensure digital marketing success. All of these constitute the theoretical part of this thesis. The reason ...

  13. Digital Marketing

    OpenAIRE

    Jerry Wind; Vijay Mahajan

    2002-01-01

    The digital revolution has shaken marketing to its core with consumers being offered greater price transparency and often even the chance to dictate the price. What does pricing mean in a world in which customers propose their own prices (as at priceline.com) or buyers and sellers haggle independently in auctions (as at e-Bay)? The most significant changes in the digital marketing show the emergence of 'cyber consumers', the cyber business-to-business world and the changing reality of an incr...

  14. Digital "X"

    DEFF Research Database (Denmark)

    Baiyere, Abayomi; Grover, Varun; Gupta, Alok

    2017-01-01

    Interest in using digital before existing research concepts seem to be on the rise in the IS field. This panel is positioned to explore what value lies in labelling our research as digital “x” as opposed to the well established IT “x” (where “x” can be strategy, infrastructure, innovation, artifa...... between this stream of research and existing research. Central among the expected output of the panel is the advancement of suggestions for future research and the critical pitfalls to avoid in doing so....

  15. Digital Radiography

    Science.gov (United States)

    1986-01-01

    System One, a digital radiography system, incorporates a reusable image medium (RIM) which retains an image. No film is needed; the RIM is read with a laser scanner, and the information is used to produce a digital image on an image processor. The image is stored on an optical disc. System allows the radiologist to "dial away" unwanted images to compare views on three screens. It is compatible with existing equipment and cost efficient. It was commercialized by a Stanford researcher from energy selective technology developed under a NASA grant.

  16. Digital filters

    CERN Document Server

    Hamming, Richard W

    1997-01-01

    Digital signals occur in an increasing number of applications: in telephone communications; in radio, television, and stereo sound systems; and in spacecraft transmissions, to name just a few. This introductory text examines digital filtering, the processes of smoothing, predicting, differentiating, integrating, and separating signals, as well as the removal of noise from a signal. The processes bear particular relevance to computer applications, one of the focuses of this book.Readers will find Hamming's analysis accessible and engaging, in recognition of the fact that many people with the s

  17. Digital voltmeter

    International Nuclear Information System (INIS)

    Yohannes Kamadi; Soekarno.

    1976-01-01

    The electrical voltage measuring equipment with digital display has been made. This equipment uses four digits display with single polarity measurement and integrating system. Pulses from the oscillator will be counted and converted to the staircase voltages, and compared to the voltage measured. When the balance is already achieved, the pulse will appear at the comparator circuit. This pulse will be used to trigger univibrator circuit. The univibrator output is used as signal for stopping the counting, and when reading time T already stops, the counting system will be reset. (authors)

  18. Digital communication

    CERN Document Server

    Das, Apurba

    2010-01-01

    ""Digital Communications"" presents the theory and application of the philosophy of Digital Communication systems in a unique but lucid form. This book inserts equal importance to the theory and application aspect of the subject whereby the authors selected a wide class of problems. The Salient features of the book are: the foundation of Fourier series, Transform and wavelets are introduces in a unique way but in lucid language; the application area is rich and resemblance to the present trend of research, as we are attached with those areas professionally; a CD is included which contains code

  19. Digital literacies

    CERN Document Server

    Hockly, Nicky; Pegrum, Mark

    2014-01-01

    Dramatic shifts in our communication landscape have made it crucial for language teaching to go beyond print literacy and encompass the digital literacies which are increasingly central to learners' personal, social, educational and professional lives. By situating these digital literacies within a clear theoretical framework, this book provides educators and students alike with not just the background for a deeper understanding of these key 21st-century skills, but also the rationale for integrating these skills into classroom practice. This is the first methodology book to address not jus

  20. Electronic resources of the rare books and valuable editions department of the Central Scientific Library of the V.N. Karazin Kharkiv National University: open access for research

    Directory of Open Access Journals (Sweden)

    І. К. Журавльова

    2014-12-01

    Full Text Available The article describes tasks that electronic collections of rare books fulfill: broad access for readers to rare and valuable editions providing, preservation of ensuring of the original. On the example of the electronic collection of the Central Scientific Library of the V.N. Karazin Kharkiv National University – «eScriptorium: electronic archive of rare books and manuscripts for research and education» the possibility of the full-text resources of the valuable editions using is shown. The principles of creation, structure, chronological frameworks, directions of adding the documents to the archive are represented. The perspectives of the project development are outlined as well as examples of the digital libraries of the European countries and Ukraine are provided, the actual task of preserving the originals of the rare books of the country is raised, the innovative approaches to serving users with electronic resources are considered. The evidences of cooperation of the Central Scientific Library of the V.N. Karazin Kharkiv National University with the largest world digital libraries: World Digital Library and Europeana are provided.