WorldWideScience

Sample records for learning circle material

  1. Circles, Materiality and Movement

    Science.gov (United States)

    Chorney, Sean

    2017-01-01

    This paper approaches the concept of the circle through the framework of mathematics-as-becoming. This paper focuses specifically on how a concept can be thought of as a process, and on the implications that this might have for mathematics learning. Contrary to long-standing assumptions about mathematical concepts as ideal, inert, Platonic forms,…

  2. Defining Leadership: Collegiate Women's Learning Circles: A Qualitative Approach

    Science.gov (United States)

    Preston-Cunningham, Tammie; Elbert, Chanda D.; Dooley, Kim E.

    2017-01-01

    The researchers employed qualitative methods to evaluate first-year female students' definition of "leadership" through involvement in the Women's Learning Circle. The findings revealed that students defined leadership in two dimensions: traits and behaviors. The qualitative findings explore a multidimensional approach to the voices of…

  3. PERANGKAT PEMBELAJARAN PERISTIWA ALAM DENGAN MODEL COOPERATIVE LEARNING TIPE INSIDE OUTSIDE CIRCLE

    Directory of Open Access Journals (Sweden)

    Diah Sunarsih

    2015-08-01

    Full Text Available Tujuan penelitian ini menghasilkan perangkat pembelajaran IPA dengan model pembelajaran cooperative learning tipe inside outside circle untuk dapat meningkatkan kemampuan berpikir kognitif dan menumbuhkan kemampuan komunikasi ilmiah siswa yang valid materi peristiwa alam. Uji coba skala terbatas dilakukan di SDN 02 Ambowetan. Uji coba skala luas kelas eksperimen SDN 01 Ambowetan VA, sedangkan kelas kontrol SDN 01 Ambowetan VB. Desain uji coba penelitian ini nonequivalent control group design. Prosedur pengembangan dan penelitian dikembangkan mengacu model pengembangan Dick dan Carry terdiri 4 tahap yaitu define, design, develop, dan disseminate. Hasil penelitian diperoleh pengembangan perangkat pembelajaran menerapkan model pembelajaran cooperative learning tipe inside outside circle berupa silabus, RPP, bahan ajar, lembar tes formatif, lembar observasi kemampuan komunikasi ilmiah, dan angket respon siswa valid, efektif, dan praktis diterapkan dalam pembelajaran IPA kelas V sekolah dasar materi peristiwa alam. Perangkat pembelajaran valid dengan nilai skor validitas akhir 3,43. Perangkat pembelajaran efektif terlihat peningkatan hasil uji N-gain menunjukkan hasil 0,50 pada klasifikasi tingkat sedang dan prosentase kemampuan ilmiah kelas eksperimen hasil sebesar 82%. Kriteria praktis dari nilai angket menunjukkan respon siswa kelas eksperimen lebih tinggi dibandingkan kelas kontrol (73% > 67 %.Purpose of this study is produce device the learning cooperative learning type inside outside circle to improve cognitive ability students and foster communication skills scientific a valid on material natural events. Trials limited scale in the SDN 02 Ambowetan. Trials wide scale for experimental class in the SDN 01 Ambowetan 5A, while the control class SDN 01 Ambowetan 5B. Design wide scale nonequivalent control group design. Procedures the development and developed research Dick and Carry consisting of 4 stage define, design, develop, and disseminate

  4. Lessons Learned from Native C.I.R.C.L.E., a Culturally Specific Resource.

    Science.gov (United States)

    Garcia, Andrea; Baethke, Lisa; Kaur, Judith S

    2017-12-01

    Cancer is now the second leading cause of death among American Indians and Alaska Natives (AIAN), and trends in cancer-related mortality over the past 2 decades show inferior control in AIAN compared to non-Hispanic Whites. The American Indian/Alaska Native Cancer Information Resource Center and Learning Exchange (Native C.I.R.C.L.E.) was developed in the year 2000 as part of a comprehensive network of partnerships to develop, maintain, and disseminate culturally appropriate cancer and other health information materials for AIAN educators and providers. Now, in its 15th year of existence, enough data has been accumulated by Native C.I.R.C.L.E. to analyze trends in the distribution of culturally relevant cancer information materials and compare access to both printed (hard copy) and online materials. The amount of culturally appropriate materials available since its creation has increased more than 10-fold. Print materials are now distributed throughout the world, and the number of materials requested from print and downloads combined are in the thousands on a monthly basis. Native C.I.R.C.L.E. is in the process of expanding its access and capabilities to target more of the lay AIAN public in order to address the digital divide.

  5. Rich services in interoperable Learning Designs: can the circle be squared?

    OpenAIRE

    Griffiths, David

    2009-01-01

    Griffiths, D. (2009). Rich services in interoperable Learning Designs: Can the circle be squared?. Presented at Opening Up Learning Design, European LAMS and Learning Design Conference 2009. July, 6-9, 2009, Milton Keynes, United Kingdom.

  6. CircleBoard-Pro: Concrete manipulative-based learning cycle unit for learning geometry

    Science.gov (United States)

    Jamhari, Wongkia, Wararat

    2018-01-01

    Currently, a manipulative is commonly used in mathematics education as a supported tool for teaching and learning. With engaging natural interaction of a concrete manipulative and advantages of a learning cycle approach, we proposed the concrete manipulative-based learning cycle unit to promote mathematics learning. Our main objectives are to observe possibilities on the use of a concrete manipulative in learning geometry, and to assess students' understanding of a specific topic, angle properties in a circle, of secondary level students. To meet the first objective, the concrete manipulative, called CricleBoard-Pro, was designed. CircleBoard-Pro is built for easy to writing on or deleting from, accurate angle measurement, and flexible movement. Besides, learning activities and worksheets were created for helping students to learn angle properties in a circle. Twenty eighth graders on a lower secondary school in Indonesia were voluntarily involved to learn mathematics using CircleBoard-Pro with the designed learning activities and worksheets. We informally observed students' performance by focusing on criteria of using manipulative tools in learning mathematics while the learning activities were also observed in terms of whether they work and which step of activities need to be improved. The results of this part showed that CircleBoard-Pro complied the criteria of the use of the manipulative in learning mathematics. Nevertheless, parts of learning activities and worksheets need to be improved. Based on the results of the observation, CircleBoard-Pro, learning activities, and worksheets were merged together and became the CircleBoardPro embedded on 5E (Engage - Explore - Explain - Elaborate - Evaluate) learning cycle unit. Then, students understanding were assessed to reach the second objective. Six ninth graders from an Indonesian school in Thailand were recruited to participate in this study. Conceptual tests for both pre-and post-test, and semi

  7. Impact of a learning circle intervention across academic and service contexts on developing a learning culture.

    Science.gov (United States)

    Walker, Rachel; Henderson, Amanda; Cooke, Marie; Creedy, Debra

    2011-05-01

    Partnerships between university schools of nursing and health services lead to successful learning experiences for students and staff. A purposive sample of academics and students from a university school of nursing and clinicians from three health institutions involved in clinical learning (n=73) actively participated in a learning circles intervention conducted over 5 months in south east Queensland. Learning circle discussions resulted in enhanced communication and shared understanding regarding: (1) staff attitudes towards students, expectations and student assessment; (2) strategies enhancing preparation of students, mechanisms for greater support of and recognition of clinicians; (3) challenges faced by staff in the complex processes of leadership in clinical nursing education; (4) construction of learning, ideas for improving communication, networking and sharing; and (5) questioning routine practices that may not enhance student learning. Pre-post surveys of hospital staff (n=310) revealed significant differences across three sub-scales of 'accomplishment' (t=-3.98, pLearning circles can positively enhance organisational learning culture. The intervention enabled participants to recognise mutual goals. Further investigation around staff perception of their influence on their workplace is required. Copyright © 2010 Elsevier Ltd. All rights reserved.

  8. Circles of Learning: Applying Socratic Pedagogy to Learn Modern Leadership

    Science.gov (United States)

    Friesen, Katherine L.; Stephens, Clinton M.

    2016-01-01

    In response to the National Leadership Education Agenda, this application brief furthers priority one, addressing the teaching, learning, and curriculum development of leadership education. The ability of students to demonstrate leadership outcome mastery in areas of communication, self-awareness, interpersonal interactions, and civic…

  9. Come together – research circles as learning arenas

    DEFF Research Database (Denmark)

    Skovhus, Randi Boelskifte

    A presentation of an example of training through research circles. A training project that include teachers in compulsory school and researchers from Aarhus University and VIA University College. The presentation is based on a practice development project. First a short presentation of the projec...

  10. Study Circles in Online Learning Environment in the Spirit of Learning-Centered Approach

    Directory of Open Access Journals (Sweden)

    Simándi Szilvia

    2017-08-01

    Full Text Available Introduction: In the era of information society and knowledge economy, learning in non-formal environments gets a highlighted role: it can supplement, replace or raise the knowledge and skills gained in the school system to a higher level (Forray & Juhász, 2008, as the so-called “valid” knowledge significantly changes due to the acceleration of development. With the appearance of information technology means and their booming development, the possibilities of gaining information have widened and, according to the forecasts, the role of learning communities will grow. Purpose: Our starting point is that today, with the involvement of community sites (e.g. Google+, Facebook etc. there is a new possibility for inspiring learning communities: by utilizing the power of community and the possibilities of network-based learning (Ollé & Lévai, 2013. Methods: We intend to make a synthesis based on former research and literature focusing on the learning-centered approach, online learning environment, learning communities and study circles (Noesgaard & Ørngreen, 2015; Biggs & Tang, 2007; Kindström, 2010 Conclusions: The online learning environment can be well utilized for community learning. In the online learning environment, the process of learning is built on activity-oriented work for which active participation, and an intensive, initiative communication are necessary and cooperative and collaborative learning get an important role.

  11. Circle Solutions, a philosophy and pedagogy for learning positive relationships: What promotes and inhibits sustainable outcomes?

    Directory of Open Access Journals (Sweden)

    Florence McCarthy

    2013-04-01

    Full Text Available Educators are increasingly aware that the efficacy of social and emotional learning (SEL is dependent on implementation factors, not just program content. These include the philosophy underpinning an intervention, the beliefs as well as the skills of facilitators, and the classroom/whole school context in which the intervention takes place. This article outlines the philosophy and pedagogy of Circle Solutions and presents findings from research where 18 undergraduate students supported and developed ‘Circle Time’ in 8 Greater Western Sydney primary schools for a university module on community service. The study indicates that when there is full teacher participation within the principles of the Circle philosophy, together with activeschool support that promotes relational values, the learning outcomes for positive relationship building are more sustainable.

  12. Evaluation of learning materials

    DEFF Research Database (Denmark)

    Bundsgaard, Jeppe; Hansen, Thomas Illum

    2011-01-01

    This paper presents a holistic framework for evaluating learning materials and designs for learning. A holistic evaluation comprises investigations of the potential learning potential, the actualized learning potential, and the actual learning. Each aspect is explained and exemplified through...

  13. Centripetal and centrifugal forces in the moral circle: Competing constraints on moral learning.

    Science.gov (United States)

    Graham, Jesse; Waytz, Adam; Meindl, Peter; Iyer, Ravi; Young, Liane

    2017-10-01

    The idea of the moral circle pictures the self in the center, surrounded by concentric circles encompassing increasingly distant possible targets of moral concern, including family, local community, nation, all humans, all mammals, all living things including plants, and all things including inanimate objects. The authors develop the idea of two opposing forces in people's moral circles, with centripetal forces pulling inward, urging greater concern for close others than for distant others, and centrifugal forces pushing outward, resisting "drawing the line" anywhere as a form of prejudice and urging egalitarian concern for all regardless of social distance. Review of the developmental literature shows very early emergence of both moral forces, suggesting at least partly intuitive bases for each. Moral education approaches favoring one force over the other are compared, to show how these forces can provide constraints on moral learning. Finally, the centripetal/centrifugal forces view is applied to current moral debates about empathy and about politics. The authors argue that this view helps us see how intercultural and interpersonal disagreements about morality are based in intrapersonal conflicts shared by all people. Copyright © 2016. Published by Elsevier B.V.

  14. Circles of Tobacco Wisdom: learning about traditional and commercial tobacco with Native elders.

    Science.gov (United States)

    Nadeau, Melanie; Blake, Norby; Poupart, John; Rhodes, Kristine; Forster, Jean L

    2012-11-01

    Circles of Tobacco Wisdom (CTW) was an elder-led, community-based project that aimed to enhance tobacco control in the American Indian community. Its goal was to provide elders with the knowledge, opportunities, and support to enable them to assume leadership of a tobacco control movement that was grounded in the ceremonial traditions of tobacco use. The purpose of this study was to test the effects of the pilot intervention on participants. The design of this pilot study intervention was a single group, pre-post comparison, with a pre-post survey, monthly check-ins, and a post-1-year focus group. Twelve elders were included in the pre- and post-analyses. All twelve elders were women who self-identified as American Indian (mean age = 64). The CTW elders participated in monthly talking circles, quarterly learning sessions, and a post-1-year focus group, and took part in other learning, support, and community action opportunities. Data were collected from December 2008 through November 2009 and analyzed throughout the process. American Indian Elders' tobacco-related knowledge, perceptions, beliefs, and behaviors were measured while participating in the CTW project. Knowledge, perceptions, beliefs, and behavior changes were seen with cigarette smoking, secondhand smoke, and ceremonial tobacco use and risk perception. After 6 months, the number of people the elders had talked with about tobacco increased, elders were more likely to have a discussion on tobacco at a community event, and their comfort level talking about commercial and traditional tobacco also increased. A number of themes also were identified in the focus group: feeling more comfortable talking about tobacco issues, learning a lot about traditional and commercial tobacco, and realizing the dangers of smoking. Elders increased their knowledge about commercial and traditional tobacco and changed related attitudes as a result of CTW. Further, American Indian Elders perceived that CTW was effective

  15. The Materiality of Learning

    DEFF Research Database (Denmark)

    Sørensen, Estrid

    or postgraduate students interested in a variety of fields, including educational studies, educational psychology, social anthropology, and STS. Original ethnographic descriptions showing the fine details of how materials influence the learning process Introduces the advanced and complex Actor-Network Theory......The field of educational research lacks a methodology for the study of learning that does not begin with humans, their aims, and their interests. The Materiality of Learning seeks to overcome this human-centered mentality by developing a novel spatial approach to the materiality of learning....... Drawing on science and technology studies (STS), Estrid Sørensen compares an Internet-based 3D virtual environment project in a fourth-grade class with the class's work with traditional learning materials, including blackboards, textbooks, notebooks, pencils, and rulers. Taking into account pupils...

  16. The E-Learning Setting Circle: First Steps toward Theory Development in E-Learning Research

    Science.gov (United States)

    Rüth, Marco; Kaspar, Kai

    2017-01-01

    E-learning projects and related research generate an increasing amount of evidence within and across various disciplines and contexts. The field is very heterogeneous as e-learning approaches are often characterized by rather unique combinations of situational factors that guide the design and realization of e-learning in a bottom-up fashion.…

  17. Holistic evaluations of learning materials

    DEFF Research Database (Denmark)

    Bundsgaard, Jeppe; Hansen, Thomas Illum

    2011-01-01

    The aim of this paper is to present a holistic framework for evaluating learning materials and designs for learning. A holistic evaluation of learning material comprises investigations of - the potential learning potential, i.e. the affordances and challenges of the learning material...

  18. Diversity Study Circles in Teacher Education Practice: An Experiential Learning Project

    Science.gov (United States)

    Moss, Glenda

    2008-01-01

    This paper addresses the dilemma of trying to prepare primarily white preservice teachers for educational arenas in which they will interface with students of colour and many who are socially disadvantaged. This paper describes how diversity study circles can be integrated as integral to education that is multicultural in the development of…

  19. Research circles

    DEFF Research Database (Denmark)

    Nordentoft, Helle Merete; Thomsen, Rie; Möller, Jonas

    lifelong guidance policies. This paper presents `research circles´ as a way to develop guidance practices through long-term research relationships between practice and research. Research circles support a bottom up approach to policy development just like ELGPN considers to be necessary and required...... of their habitual pedagogical role and enables them to observe and analyze their own practice. In conclusion, this methodological approach to the development of guidance practices introduces a combination between theory and practice that meets current needs of practice, policy and research....

  20. LEARNING AND E-MATERIALS

    Directory of Open Access Journals (Sweden)

    Barbara Bajd

    2009-03-01

    Full Text Available This paper addresses the use of e-materials in learning. Under pressure from the public,which is becoming increasingly conversant with IT, schools and also other non-formal types of learning are changing into e-classrooms and e-learning. Among parents and teachers, too, there is a widespread opinion that e-learning is more motivating and is more effective. On the other hand, a mass of research shows that e-materials are more effective only in specific areas, where a multimedia approach is needed, for instance in ophthalmic surgery, while everywhere else they are comparable to traditional teaching and learning in terms of both effectiveness and motivation. The paper also highlights the methodological problems of measuring motivation and learning success. Finally it presents e-material which was created taking into account the results of research in this field.

  1. Learning Circles: A Collaborative Technology-Mediated Peer-Teaching Workshop

    Science.gov (United States)

    Sullivan, Kevin; Marshall, Kevin; Tangney, Brendan

    2015-01-01

    This research study explores peer teaching and learning without a domain expert teacher, within the context of an activity where teams of second level students (~16 years old) are required to create a learning experience for their peers. The study looks at how participants would like to be taught and how they would teach their peers if given the…

  2. Classrooms in the Wild: Learning Language and Life Skills in the KUIS Outdoor Sports Circle.

    Science.gov (United States)

    Wurr, Adrian

    The role of outdoor education activities in the Kanda University English language institute is described. The outdoor program was developed to unite faculty and students interested in recreational activities and provide an opportunity to explore common interests in nature, sports, and language learning. The activities develop self-esteem,…

  3. Small circles

    DEFF Research Database (Denmark)

    Ling, Richard; Bjelland, Johannes; Sundsøy, Pål

    2014-01-01

    and spatial movement is highly predictable and that the majority of calls and text messages are sent to only four to six different persons. This article extends this research by examining both tie strength and the distance between the interlocutors in urban and rural settings. The findings show that even......This article examines how we use mobile telephony to maintain our physically and socially closest social circle. The analysis is based on traffic data gathered from Norway using approximately 24 million calls and texts made by private individuals. Previous research has shown that our temporal...... as information and communication technologies (ICTs) potentially put the world at our fingertips, the mobile phone is an instrument of a more limited geographical and social sphere. Approximately two-thirds of our calls/texts go to strong ties that are within a 25-km radius....

  4. PENGEMBANGAN LKS DENGAN MODEL DISCOVERY LEARNING PADA MATERI IRISAN DUA LINGKARAN

    Directory of Open Access Journals (Sweden)

    Harisman Nizar

    2016-07-01

    Full Text Available This research aims at (1producing a valid and practical LKS (Student Worksheet in discovery learning model in two circles intersection material in class XI, and (2 to find out the potential effect toward the learning outcomes from the development of LKS with discovery learning model in two circles intersections material in class XI MIA. The design ofthis research is a developmental study. The subjects of this research were 33 students of XI MIA 1 SMA N 1 Indralaya in academic year 2015/2016. The data collecting technique used were observation, test, and interview. The result of the researches were : (1 This research produced a valid and practical LKS with discovery learning model in two circles intersections material in class XI MIA withsome characteristics such as, (a Contain the operational steps of discovery learning model, (b Help students in finding the concept of two circles intersections model. (c Make students active in learning. Being valid can be seen from the results of validator assessment, where the validator comments on the first prototype of LKS from content, construct, and language. Being practical can be seen from the results of  small group try out, in which it was based on analysis of the answer sheets of students, it was found that students were able to complete each steps there and students’ comments obtained from the sheets that stated the LKS given was easy to be done by students. (2 The developed LKS consisted of potential effect toward the learning outcomes from cognitive (knowledge, affective (attitude, and psychomotor (skill. In the cognitive domain 81.81% of students got score > 65, in the affective domain all of the students had shown an attitude of honesty and responsiveness shown by observations during LKS usage, as well as in the of psychomotor domain skills all of students had good skill that seen from the result of students performance.

  5. Evaluation of Learning Materials: A Holistic Framework

    Science.gov (United States)

    Bundsgaard, Jeppe; Hansen, Thomas Illum

    2011-01-01

    This paper presents a holistic framework for evaluating learning materials and designs for learning. A holistic evaluation comprises investigations of the potential learning potential, the actualised learning potential, and the actual learning. Each aspect is explained and exemplified through theoretical models and definitions. (Contains 3 figures…

  6. Developing Soft Skills Using "Literature Circles"

    Science.gov (United States)

    Azmi, Mohd Nazri Bin Latiff

    2013-01-01

    This study investigates the impact of the implementation of "Literature Circles" in an Active Learning classroom in relations to developing soft skills among university students. The use of Literature Circles is a well-known strategy in teaching the students to be more creative, independent, and think out of the box. A group of…

  7. Circle diffeomorphisms forced by expanding circle maps

    NARCIS (Netherlands)

    Homburg, A.J.

    2012-01-01

    We discuss the dynamics of skew product maps defined by circle diffeomorphisms forced by expanding circle maps. We construct an open class of such systems that are robustly topologically mixing and for which almost all points in the same fiber converge under iteration. This property follows from the

  8. Action-Oriented Study Circles Facilitate Efforts in Nursing Homes to “Go from Feeding to Serving”: Conceptual Perspectives on Knowledge Translation and Workplace Learning

    Directory of Open Access Journals (Sweden)

    Albert Westergren

    2012-01-01

    Full Text Available Background. Action-oriented study circles (AOSC have been found to improve nutrition in 24 nursing homes in Sweden. Little, however, is known about the conceptual use of knowledge (changes in staffs’ knowledge and behaviours. Methods. Qualitative and quantitative methods, structured questionnaires for evaluating participants’ (working in nursing homes experiences from study circles (n=592, 71 AOSC and for comparisons between AOSC participants (n=74 and nonparticipants (n=115. Finally, a focus group interview was conducted with AOSC participants (in total n=12. Statistical, conventional, and directed content analyses were used. Results. Participants experienced a statistically significant increase in their knowledge about eating and nutrition, when retrospectively comparing before participating and after, as well as in comparison to non-participants, and they felt that the management was engaged in and took care of ideas regarding food and mealtimes to a significantly greater extent than non-participants. The use of AOSC was successful judging from how staff members had changed their attitudes and behaviours toward feeding residents. Conclusions. AOSC facilitates professional development, better system performance, and, as shown in previous studies, better patient outcome. Based on a collaborative learning perspective, AOSC manages to integrate evidence, context, and facilitation in the efforts to achieve knowledge translation in a learning organisation. This study has implications also for other care settings implementing AOSC.

  9. Learning to provide children with a secure base and a safe haven: The Circle of Security-Parenting (COS-P) group intervention.

    Science.gov (United States)

    Kim, Monica; Woodhouse, Susan S; Dai, Chenchen

    2018-05-21

    Insecure attachment is linked to a host of negative child outcomes, including internalizing and externalizing behavior problems. Circle of Security-Parenting (COS-P) is a manualized, video-based, eight unit, group parenting intervention to promote children's attachment security. COS-P was designed to be easily implemented, so as to make attachment interventions more widely available to families. We present the theoretical background of COS-P, research evidence supporting the COS approach, as well as a description of the COS-P intervention protocol. The case example of "Alexa," mother of three children (aged 7, 6, and 4 years), illustrates how parents can make use of the COS-P intervention to better understand children's needs, build skills in observing and interpreting children's signals, learn to recognize and regulate their own responses to their children, and learn new ways of responding to children's needs. © 2018 Wiley Periodicals, Inc.

  10. Circles of Support and Personalization: Exploring the Economic Case

    Science.gov (United States)

    Wistow, Gerald; Perkins, Margaret; Knapp, Martin; Bauer, Annette; Bonin, Eva-Maria

    2016-01-01

    Circles of Support aim to enable people with learning disabilities (and others) to live full lives as part of their communities. As part of a wider study of the economic case for community capacity building conducted from 2012 to 2014, we conducted a mixed methods study of five Circles in North West England. Members of these Circles were…

  11. General minisum circle location

    DEFF Research Database (Denmark)

    Körner, Mark; Brimberg, Jack; Juel, Henrik

    2009-01-01

    In our paper we approximate a set of given points by a general circle. More precisely, we consider the problem of locating and scaling the unit ball of some given norm k1 with respect to xed points on the plane such that the sum of weighted distances between the circle and the xed points is minim......In our paper we approximate a set of given points by a general circle. More precisely, we consider the problem of locating and scaling the unit ball of some given norm k1 with respect to xed points on the plane such that the sum of weighted distances between the circle and the xed points...

  12. Empirical Evaluation of Different Feature Representations for Social Circles Detection

    Science.gov (United States)

    2015-06-16

    study and compare the performance on the available labelled Facebook data from the Kaggle competition on learning social circles in networks . We...Kaggle competition on learning social circles in networks [5]. The data consist of hand- labelled friendship egonets from Facebook and a set of 57...16. SECURITY CLASSIFICATION OF: Social circles detection is a special case of community detection in social network that is currently attracting a

  13. Vicious Circles in Organizations.

    Science.gov (United States)

    Masuch, Michael

    1985-01-01

    After examining some elementary notions of action theory and cybernetics, this article analyzes the dynamics, clustering, and survival chances of vicious circles. It argues that the action perspective implies that many structural suboptimalities of organizations are caused by vicious circles. Eleven figures and 105 references are provided. (DCS)

  14. Polygons and Their Circles

    Science.gov (United States)

    Stephenson, Paul

    2009-01-01

    In order to find its circumference, Archimedes famously boxed the circle between two polygons. Ending the first of a series of articles (MT179) with an aside, Francis Lopez-Real reverses the situation to ask: Which polygons can be boxed between two circles? (The official term for such polygons is "bicentric".) The sides of these polygons are…

  15. E-learning materials in mathematics education

    OpenAIRE

    Fajfar, Tina

    2012-01-01

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

  16. Material Matters: Increasing Emotional Engagement in Learning

    Science.gov (United States)

    Taylor, Steven S.; Statler, Matt

    2014-01-01

    Organizational scholars and neuroscientists suggest that when people are more emotionally engaged, they learn more effectively. Clinical art therapists suggest that the experience as well as the expression of emotions can be enabled or constrained by different materials. So then, what materials can be employed by management educators to achieve…

  17. A Smart Material Interfaces Learning Experience

    NARCIS (Netherlands)

    Minuto, A.; Pittarello, Fabio; Nijholt, Antinus

    2015-01-01

    This paper describes a learning experience held with a class of primary school children who were introduced to a novel class of resources, named smart materials, and the interfaces built with them (Smart Material Interfaces). The pupils were guided along a multidisciplinary educational path in which

  18. The three circle method

    International Nuclear Information System (INIS)

    Garncarek, Z.

    1989-01-01

    The three circle method in its general form is presented. The method is especially useful for investigation of shapes of agglomerations of objects. An example of its applications to investigation of galaxies distribution is given. 17 refs. (author)

  19. ANALYSIS OF STUDENTS’ LEARNING OBSTACLES ON LEARNING INVERS FUNCTION MATERIAL

    Directory of Open Access Journals (Sweden)

    Krisna Satrio Perbowo

    2017-09-01

    Full Text Available This research is based on the presence of obstacle in learning mathematics on inverse function. This research aims to analyze the learning obstacle, to know the types of error that is suffered by the students in learning inverse function. Kind of this kualitative research descriptive with data triangulation. The research subjects are high school students which is contained of 74 students and was taken 6 students to be main sample. The data of students’ error is obtained from the writen test result, the students’ false answers are identified into the type of error. Then it was chosen several students to be interviewed. Which the analysis result finding data in this research showed there are 4 types of errors, which are concept error, procedure error, counting error and concluding error. An obstacle which appear in learning inverse function is influenced by two factors, i.e internal factor and eksternal factor. Internal factor is showed by the students’ motivation in following learning and students’ skill in receiving learning material. While the eksternal factor is showed by the curriculum which applied in school with acceleration class caused many narrow learning time, teaching materials that is less complete with the discussion of question sample.

  20. Comparative Study of Learning Using E-Learning and Printed Materials on Independent Learning and Creativity

    Science.gov (United States)

    Wahyu Utami, Niken; Aziz Saefudin, Abdul

    2018-01-01

    This study aims to determine: 1) differences in students taking independent learning by using e-learning and the students who attend the learning by using the print instructional materials ; 2) differences in the creativity of students who follow learning with e-learning and the students who attend the learning by using the print instructional materials ; 3) differences in learning independence and creativity of students attend learning with e-learning and the students who attend lessons using printed teaching materials in the subject of Mathematics Instructional Media Development. This study was a quasi-experimental research design using only posttest control design. The study population was all students who take courses in Learning Mathematics Media Development, Academic Year 2014/2015 100 students and used a random sample (random sampling) is 60 students. To test the hypothesis used multivariate analysis of variance or multivariable analysis of variance (MANOVA) of the track. The results of this study indicate that 1) There is a difference in student learning independence following study using the e-learning and the students who attend lessons using printed teaching materials in the lecture PMPM ( F = 4.177, p = 0.046 0.05) ; No difference learning independence and creativity of students attend learning by using e-learning and the students who attend the learning using printed teaching materials in the lecture PMPM (F = 2.452, p = 0.095 > 0.05). Based on these studies suggested that the learning using e -learning can be used to develop student creativity, while learning to use e -learning and teaching materials can be printed to use to develop students’ independence.

  1. English language learning materials a critical review

    CERN Document Server

    Tomlinson

    2010-01-01

    This research collection presents a critical review of the materials used for learning English around the world. The first section includes a discussion of materials for specific learners and purposes, such as young learners, self-study, academic writing and general proficiency. The second section presents a detailed study of the materials used in Europe, Asia, North America, South America, Africa and Australia, and critically evaluates their effectiveness in the teaching of English to speakers of other languages. Taking both the teacher's and the learner's needs into consideration, the book m

  2. Growing a Circle of Courage Culture: One School's Journey

    Science.gov (United States)

    Espiner, Deborah; Guild, Diane

    2010-01-01

    Mt. Richmond Special School is the first Circle of Courage school in New Zealand. The school reflects the richness of the cultural and learning diversity found in many New Zealand schools. Located in the heart of South Auckland, the school's 130 students represent a wide range of ethnic backgrounds. The universal values in the Circle of Courage…

  3. The Inner Circle Revisited

    DEFF Research Database (Denmark)

    Grau Larsen, Anton; Ellersgaard, Christoph

    2018-01-01

    in social networks, we identify a cohesive core group of 171 individuals within a corporate elite of 6154 board members of the top 1037 Danish corporations. A high degree of social homogeneity in gender, social background, education and career position underlines the cohesion of the inner circle. By mapping...

  4. Inside Larry's Circle

    Science.gov (United States)

    Arnold, Alice

    2009-01-01

    Last spring, students from several North Carolina middle schools were invited to participate in the annual Celebrate the Arts festival in Columbus Country. Larry Hewett, a local art teacher, had been selected to instruct the middle-school students. Larry's River Rock Circles project was made as the starting point for the Celebrate the Arts…

  5. Dynamics on the Circle

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 8; Issue 11. Dynamics on the Circle - Interval Dynamics and Rotation Number. Siddhartha Gadgil. General Article Volume 8 Issue 11 November 2003 pp 25-36. Fulltext. Click here to view fulltext PDF. Permanent link:

  6. Students’ Scientific Circle of Obstetrics and Gynaecology

    Directory of Open Access Journals (Sweden)

    Ivan Polishchuk

    2017-06-01

    Full Text Available The students’ scientific circle is the kind of teaching obstetrics and gynaecology in a higher medical institution. The circle is an elective form of learning that allows the students to get deeper knowledge of a subject and to perfect themselves in the issues of diagnostics in obstetrics and gynaecology as well as to acquaint themselves with basic medical techniques. It helps identify students who are capable of scientific research and allows the students to improve their ability to analytical perception of professional information, the ability to present it to the audience, ask and answer the questions publicly. The article presents the results of practical and research activities of obstetric and gynaecologic section of the students’ scientific circle of Ivano-Frankivsk National Medical University.

  7. Introducing Nine-Point Circle to Junior High School Students

    Science.gov (United States)

    Fiangga, S.; Azizah, M. A. N.; Rini, R. N. K.; Hidayanti, A. N.

    2018-01-01

    The concept of circles is an ancient concept that has appeared since Ancient Egypt from which this concept gives many significant contributions in mathematics’ development until now. Nevertheless, the concept of circles hides many uncover mysterious features that are of applications in mathematics. One of the mysterious features is the Nine-Point Circle. This Nine-point circle is also known as Euler’s circle, six-point circle, Feuerbach’s circle, the twelve-point circle, and many others. Because of these different names, there have been misunderstand among mathematicians about the Nine-Point Circle’s history. Besides, the discussion of Nine-Point Circle can be used to be an initial material to explain elementary geometry topic in junior high school’s level curriculum of 2013. Therefore, this concept needs to be delivered to the students as a geometry introduction. A possible form of the integration historical aspect of Nine-point circle is suggested in this paper as well as its importance in the curriculum of 2013.

  8. Design of digital learning material for bioprocess-engineering-education

    NARCIS (Netherlands)

    Schaaf, van der H.

    2007-01-01

    With the advance of computers and the internet, new types of learning material can be developed: web-based digital learning material. Because many complex learning objectives in the food- and bioprocess technology domain are difficult to achieve in a traditional learning environment, a project was

  9. Data Science and Optimal Learning for Material Discovery and Design

    Science.gov (United States)

    ; Optimal Learning for Material Discovery & Design Data Science and Optimal Learning for Material inference and optimization methods that can constrain predictions using insights and results from theory directions in the application of information theoretic tools to materials problems related to learning from

  10. A game magically circling

    DEFF Research Database (Denmark)

    Ejsing-Duun, Stine

    2011-01-01

    This chapter analyses the relationship between players, the game world, and the ordinary world in alternative reality games (ARGs) and location-based games (LBGs). These games use technology to create a game world in the everyday scene. The topic of this chapter is the concept of the 'magic circle......', which defines the relationship between play and the ordinary world, and how this concept relates to a new kind of game....

  11. Development of E-Learning Materials for Machining Safety Education

    Science.gov (United States)

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

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

  12. Developing a Virtual Book - Material for Virtual Learning Environments

    Directory of Open Access Journals (Sweden)

    Anne Karin Larsen

    2007-12-01

    Full Text Available This article describes the process of, and considerations taken when Virtual Learning Materials were developed for an international study in Comparative Social Work arranged by the VIRCLASS project. The steps taken and the elements included in the Virtual Book – A Guide to Social Work in Europe are presented in details to inform others who are planning to make virtual learning materials. Students from 11 countries in Europe participated, and their reception of this material and learning outcomes from using it are analysed and presented. Furthermore; the article discuss how the learning material contributes to students’ learning, how a common understanding of practice enhances knowledge-building and in what way audio-visual learning material can contribute to good learning in e-learning courses. The results are discussed in relation to theories about composite texts and community of inquiry, and outlines some challenges for e-teachers’ competences.

  13. Recumbent Stone Circles

    Science.gov (United States)

    Ruggles, Clive L. N.

    During the 1970s and early 1980s, British archaeoastronomers were striving to bridge the interpretative gulf between the "megalithic observatories" of Alexander Thom and an archaeological mainstream that, generally speaking, was hostile to any mention of astronomy in relation to the megalithic monuments of Neolithic and Early Bronze Age Britain. The Scottish recumbent stone circles (RSCs) came to represent an example where sounder methodology could overcome many of the data selection issues that had beset earlier studies and, with due restraint, produce credible interpretations. Systematic studies of their orientations consistently concluded that the RSCs had a strong lunar connection, and it was widely envisaged that they were the setting for ceremonies associated with the appearance of the moon over the recumbent stone. Other evidence such as the presence of white quartz and the spatial distribution of cupmarks appeared to back up this conclusion. New archaeological investigations since 1999 have challenged and modified these conclusions, confirming in particular that the circles were built to enclose cairns rather than to demarcate open spaces. Yet the restricted pattern of orientations of these structures could only have been achieved by reference to the basic diurnal motions of the skies, and orientation in relation to simple observations of the midsummer moon remains the most likely reading of the alignment evidence taken as a whole. On the other hand, a consideration of the broader context, which includes the nearby Clava cairns, highlights instead the symbolic importance of the sun.

  14. Models to support students’ understanding of measuring area of circles

    Science.gov (United States)

    Rejeki, S.; Putri, R. I. I.

    2018-01-01

    Many studies showed that enormous students got confused about the concepts of measuring area of circles. The main reason is because mathematics classroom practices emphasized on memorizing formulas rather than understanding concepts. Therefore, in this study, a set of learning activities were designed as an innovation in learning area measurement of circles. The activities involved two models namely grid paper and reshaping which are respectively as a means and a strategy to support students’ learning of area measurement of circles. Design research was used as the research approach to achieve the aim. Thirty-eight of 8th graders in Indonesia were involved in this study. In this study, together with the contextual problems, the grid paper and reshaping sectors, which used as the models in this learning, helped the students to gradually develop their understanding of the area measurement of circles. The grid papers plays important role in comparing and estimating areas. Whereas, the reshaping sectors might support students’ understanding of the circumference and the area measurement of circles. Those two models could be the tool for promoting the informal theory of area measurement. Besides, the whole activities gave important role on distinguishing the area and perimeter of circles.

  15. An Ontology to Support the Classification of Learning Material in an Organizational Learning Environment: An Evaluation

    Science.gov (United States)

    Valaski, Joselaine; Reinehr, Sheila; Malucelli, Andreia

    2017-01-01

    Purpose: The purpose of this research was to evaluate whether ontology integrated in an organizational learning environment may support the automatic learning material classification in a specific knowledge area. Design/methodology/approach: An ontology for recommending learning material was integrated in the organizational learning environment…

  16. Using learning materials for design-based interventions

    DEFF Research Database (Denmark)

    Gissel, Stig Toke

    2015-01-01

    This article considers a methodological issue concerning the use of learning materials for interventions in design-based research. When the researcher uses existing or creates new didacticised learning materials for research purposes and tests their applicability in authentic contexts, many...... variables are in play. When using or designing a learning material a lot of choices have to be made and effects are difficult to isolate. The advantage of using learning materials for interventions is that results could have high ecological validity. In the article this methodological issue is exemplified...... through a research project using and developing digital learning materials for developing literacy in the early grades. One of many important choices to be made in elaborating this learning material concerns which texts should be used for supporting students’ literacy development in the lower grades...

  17. DESIGNING ENGLISH LEARNING MATERIALS TO FOSTER CHILDREN‟S CREATIVITY

    Directory of Open Access Journals (Sweden)

    C. Murni Wahyanti

    2017-04-01

    Full Text Available Learning materials form an important part of English teaching-learning processes in Elementary schools. In many cases, teachers and students rely on the learning materials available and the materials dictate teachers‘ strategies. Despite the availability of commercially produced materials, it is considered necessary for teachers to construct or adapt learning materials. Teachers know better about their students‘ ability, needs and interests. In addition, the materials can be more contextual. Good materials should foster children‘s creative thinking since creativity is one of the important skills children need to develop. Features of creativity involve using imagination, generating ideas and questions, experimenting with alternatives, being original and making judgment. This presentation will focus on how to develop learning materials that can foster children‘s creativity. It will discuss about why teachers need to design their own materials, principles for designing effective English learning materials, the concepts and components of creativity and the importance of creativity in language learning. Examples of how to apply features of creativity in the English learning materials for children will be provided.

  18. Domain Discretization and Circle Packings

    DEFF Research Database (Denmark)

    Dias, Kealey

    A circle packing is a configuration of circles which are tangent with one another in a prescribed pattern determined by a combinatorial triangulation, where the configuration fills a planar domain or a two-dimensional surface. The vertices in the triangulation correspond to centers of circles...... to domain discretization problems such as triangulation and unstructured mesh generation techniques. We wish to ask ourselves the question: given a cloud of points in the plane (we restrict ourselves to planar domains), is it possible to construct a circle packing preserving the positions of the vertices...... and constrained meshes having predefined vertices as constraints. A standard method of two-dimensional mesh generation involves conformal mapping of the surface or domain to standardized shapes, such as a disk. Since circle packing is a new technique for constructing discrete conformal mappings, it is possible...

  19. The development of learning material using learning cycle 5E model based stem to improve students’ learning outcomes in Thermochemistry

    Science.gov (United States)

    sugiarti, A. C.; suyatno, S.; Sanjaya, I. G. M.

    2018-04-01

    The objective of this study is describing the feasibility of Learning Cycle 5E STEM (Science, Technology, Engineering, and Mathematics) based learning material which is appropriate to improve students’ learning achievement in Thermochemistry. The study design used 4-D models and one group pretest-posttest design to obtain the information about the improvement of sudents’ learning outcomes. The subject was learning cycle 5E based STEM learning materials which the data were collected from 30 students of Science class at 11th Grade. The techniques used in this study were validation, observation, test, and questionnaire. Some result attain: (1) all the learning materials contents were valid, (2) the practicality and the effectiveness of all the learning materials contents were classified as good. The conclution of this study based on those three condition, the Learnig Cycle 5E based STEM learning materials is appropriate to improve students’ learning outcomes in studying Thermochemistry.

  20. Machine learning application in the life time of materials

    OpenAIRE

    Yu, Xiaojiao

    2017-01-01

    Materials design and development typically takes several decades from the initial discovery to commercialization with the traditional trial and error development approach. With the accumulation of data from both experimental and computational results, data based machine learning becomes an emerging field in materials discovery, design and property prediction. This manuscript reviews the history of materials science as a disciplinary the most common machine learning method used in materials sc...

  1. Developing Course Materials for Technology-Mediated Chinese Language Learning

    Science.gov (United States)

    Kubler, Cornelius C.

    2018-01-01

    This article discusses principles involved in developing course materials for technology-mediated Chinese language learning, with examples from a new course designed to take into account the needs of distance and independent learners. Which learning environment is most efficient for a given learning activity needs to be carefully considered. It…

  2. Designing Teaching Materials for Learning Problem Solving in Technology Education

    NARCIS (Netherlands)

    Doornekamp, B.G.

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

  3. Handling multiple metadata streams regarding digital learning material

    NARCIS (Netherlands)

    Roes, J.B.M.; Vuuren, J. van; Verbeij, N.; Nijstad, H.

    2010-01-01

    This paper presents the outcome of a study performed in the Netherlands on handling multiple metadata streams regarding digital learning material. The paper describes the present metadata architecture in the Netherlands, the present suppliers and users of metadata and digital learning materials. It

  4. Criteria for assessing learning material for distance education ...

    African Journals Online (AJOL)

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

  5. Membandingkan Bilangan Pecahan Menggunakan Fraction Circle terhadap Pemahaman Konsep Siswa

    Directory of Open Access Journals (Sweden)

    Renny Sendra Wahyuni

    2017-03-01

    Full Text Available Penelitian bertujuan untuk mendeskripsikan lintasan belajar siswa dalam memahami konsep pembelajaran membandingkan bilangan pecahan dengan menggunakan fraction circle melalui pendekatan PMRI. Penelitian dilaksanakan di SD Negeri 146 Palembang. Metode yang digunakan adalah design research melalui tahap-tahap preparing for the experiment, teaching experiment, dan retrospective analysis. Penelitian ini menunjukkan peranan fraction circle sebagai model yang mendorong peserta didik menemukan pemahaman konsep membandingkan bilangan pecahan dengan menggunakan pendekatan PMRI. Kata Kunci: pecahan, fraction circle, design research, PMRI This study aims to design a learning trajectory to help students understand the concept of rational numbers through fashion context. The study aims to describe students learning trajectory in understanding the concept of comparing fractions through fraction circle with PMRI approach. The research was conducted in SD Negeri 146 Palembang. The method used in this research is design research which consists of three stages: preparing for the experiment, teaching experiment, and retrospective analysis. The result shows the role fraction circle as a model to encourage students to understand the concept of comparing fractions using PMRI approach. Keywords: fractions, fraction circle, design research, PMRI

  6. Socio-material perspectives on interprofessional team and collaborative learning.

    Science.gov (United States)

    McMurtry, Angus; Rohse, Shanta; Kilgour, Kelly N

    2016-02-01

    Interprofessional teamwork and collaboration have become important parts of health care practice and education. Most of the literature on interprofessional learning, however, assumes that learning is something acquired by individuals and readily transferred to other contexts. This assumption severely limits the ways in which interprofessional educators and researchers can conceptualise and support learning related to collaborative interprofessional health care. Socio-material theories provide an alternative to individualistic, acquisition-oriented notions by reconceiving learning in terms of collective dynamics, participation in social communities and active engagement with material contexts. Socio-material literature and theories were reviewed to identify concepts relevant to interprofessional learning. After briefly summarising the origins and key principles of socio-material approaches, the authors draw upon specific socio-material theories--including complexity theory, cultural-historical activity theory and actor-network theory--in order to reconceive how learning happens in interprofessional contexts. This reframing of interprofessional learning focuses less on individuals and more on collective dynamics and the actual social and material relations involved in practice. The paper proposes five ways in which learning may be enacted in interprofessional teamwork and collaboration from a socio-material perspective: (i) diverse contributions; (ii) social interactions and relationships; (iii) synthesis of professional ideas; (iv) integration of material elements, and (v) connections to large-scale organisations. For each of these categories, the paper provides practical illustrations to assist educators and researchers who wish to identify and assess this learning. Although more exploratory than comprehensive, this paper articulates many key aspects of socio-material learning theories and offers practical guidance for those who wish to employ and assess them in

  7. CIRCLE Enhancement After Myopic SMILE.

    Science.gov (United States)

    Siedlecki, Jakob; Luft, Nikolaus; Mayer, Wolfgang J; Siedlecki, Martin; Kook, Daniel; Meyer, Bertram; Bechmann, Martin; Wiltfang, Rainer; Priglinger, Siegfried G; Dirisamer, Martin

    2018-05-01

    To report the outcomes of enhancement after small incision lenticule extraction (SMILE) using the VisuMax CIRCLE option (Carl Zeiss Meditec AG, Jena, Germany), which converts the SMILE cap into a femtosecond LASIK flap for secondary excimer laser application. Of 2,065 SMILE procedures, 22 eyes (1.1%) re-treated with CIRCLE with a follow-up of 3 months were included in the analysis. SMILE was performed in the usual manner. For re-treatment, the CIRCLE procedure was performed with pattern D flap creation on the VisuMax system and subsequent excimer laser ablation with a Zeiss MEL 90 laser (Carl Zeiss Meditec) with plano target in all cases. Spherical equivalent was -5.56 ± 2.22 diopters (D) before SMILE and -0.51 ± 1.08 D before CIRCLE. CIRCLE enhancement was performed after a mean of 10.0 ± 7.9 months, allowed for safe flap lifting in all eyes, and resulted in a final manifest refraction spherical equivalent of 0.18 ± 0.31 D at 3 months (P line of UDVA. Corrected distance visual acuity (CDVA) remained unchanged at all time points (before vs after CIRCLE, P = .40). Two eyes (9.1 %) lost one line of CDVA; no eye lost two or more lines. The safety and efficacy indices were 1.03 and 0.97 at 3 months. The CIRCLE procedure represents an effective re-treatment option after SMILE. Compared to surface ablation re-treatment after SMILE, CIRCLE seems to offer advantages in respect to speed of visual recovery, safety, and predictability, but at the price of flap creation. [J Refract Surg. 2018;34(5):304-309.]. Copyright 2018, SLACK Incorporated.

  8. To have or to learn? The effects of materialism on British and Chinese children's learning.

    Science.gov (United States)

    Ku, Lisbeth; Dittmar, Helga; Banerjee, Robin

    2014-05-01

    This article presents a systematic attempt to examine the associations of materialism with learning in 9- to 11-year-old children in 2 countries of similar economic development but different cultural heritage. Using cross-sectional, longitudinal, and experimental methods, we test a theoretically driven model of associations among materialism, learning motivations, and learning outcomes. Convergent findings suggest that a materialist orientation in elementary school children lowers intrinsic learning motivations, fosters extrinsic learning motivations, and leads to poorer learning outcomes. Materialism was linked directly to lower exam performance, and this link was mediated by lower mastery and heightened performance goals, with patterns not differing between British and Hong Kong Chinese children (Study 1). A follow-up showed that initial materialism predicted worse exam grades 1 year later, suggesting a detrimental long-term effect on Chinese children's school performance (Study 2). We then tested relationships between materialism and learning experimentally, by priming a momentary (state) orientation toward materialism. Writing about material possessions and money affected Chinese children's learning motivations, so that they endorsed lower mastery and higher performance goals (Study 3). A video-diary materialism prime had significant effects on actual learning behaviors, leading British children to (a) choose a performance-oriented learning task over a mastery-oriented task and (b) give up on the task more quickly (Study 4). This research has important implications for personality psychology, educational policy, and future research.

  9. SOFTWARE COMPLEX FOR CREATION AND ACCUMULATION OF MODERN LEARNING MATERIALS

    Directory of Open Access Journals (Sweden)

    V. V. Polinovskyi

    2010-08-01

    Full Text Available The article analyzes weaknesses of existing tools for lecture materials creation and suggests new complex with modular architecture, which supports different types of lecture materials, templates, interactive elements, includes lecture material database with searching, sorting, and grouping capabilities and can be used for creating lectures courses for distance learning, as well as for interactive lectures for full-time courses.

  10. Building the Circle.

    Science.gov (United States)

    Anderson, Kim

    1998-01-01

    Presents a strategy for holistic facilitation based on the medicine wheel. Describes its application to the personal role of the facilitator, creation of an environment for holistic group process, and ways to work holistically through individual learning cycles and styles. (SK)

  11. Learning to Apply Models of Materials While Explaining Their Properties

    Science.gov (United States)

    Karpin, Tiia; Juuti, Kalle; Lavonen, Jari

    2014-01-01

    Background: Applying structural models is important to chemistry education at the upper secondary level, but it is considered one of the most difficult topics to learn. Purpose: This study analyses to what extent in designed lessons students learned to apply structural models in explaining the properties and behaviours of various materials.…

  12. Online faculty development for creating E-learning materials.

    Science.gov (United States)

    Niebuhr, Virginia; Niebuhr, Bruce; Trumble, Julie; Urbani, Mary Jo

    2014-01-01

    Faculty who want to develop e-learning materials face pedagogical challenges of transforming instruction for the online environment, especially as many have never experienced online learning themselves. They face technical challenges of learning new software and time challenges of not all being able to be in the same place at the same time to learn these new skills. The objective of the Any Day Any Place Teaching (ADAPT) faculty development program was to create an online experience in which faculty could learn to produce e-learning materials. The ADAPT curriculum included units on instructional design, copyright principles and peer review, all for the online environment, and units on specific software tools. Participants experienced asynchronous and synchronous methods, including a learning management system, PC-based videoconferencing, online discussions, desktop sharing, an online toolbox and optional face-to-face labs. Project outcomes were e-learning materials developed and participants' evaluations of the experience. Likert scale responses for five instructional units (quantitative) were analyzed for distance from neutral using one-sample t-tests. Interview data (qualitative) were analyzed with assurance of data trustworthiness and thematic analysis techniques. Participants were 27 interprofessional faculty. They evaluated the program instruction as easy to access, engaging and logically presented. They reported increased confidence in new skills and increased awareness of copyright issues, yet continued to have time management challenges and remained uncomfortable about peer review. They produced 22 new instructional materials. Online faculty development methods are helpful for faculty learning to create e-learning materials. Recommendations are made to increase the success of such a faculty development program.

  13. Multimedia Materials for Language and Literacy Learning.

    Science.gov (United States)

    Hallett, Terry L.

    1999-01-01

    Introduces educators to inexpensive, commercially-available CD-ROM software that combines speech, text, graphics, sound, video, animation, and special effects that may be incorporated into classroom activities for both normally developing and language learning disabled children. Discusses three types of multimedia CD-ROM products: (1) virtual…

  14. Learning Things: Material Culture in Art Education

    Science.gov (United States)

    Blandy, Doug; Bolin, Paul E.

    2018-01-01

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

  15. Quality Circles and nuclear energy

    International Nuclear Information System (INIS)

    Wiesendanger, J.; Raveleau, G.

    1983-01-01

    A Circle of Quality is a small group of workers or employees made up of from five to ten volunteers from a given shop, office, or factory team, or sharing identical concerns. For every problem that is taken under advisement, these groups draft a solution, test its validity and propose its application, eventually monitoring its implementation and assessing the results achieved. The problems dealt with and the improvements introduced frequently concern details of the personnel's work routines, product quality, tool reliability. But these improvements become so numerous that, eventually, it is the efficiency of an entire office, shop, department or plant, and hence that of the company itself, that is enhanced thereby. Some of the features of a circle of quality are given. A Circle of quality is a contribution to the reliability of the individual, as also to innovation [fr

  16. The Revival of Research Circles: Meeting the Needs of Modern Aging and the Third Age

    Science.gov (United States)

    Ostlund, Britt

    2008-01-01

    This article provides evidence that it is worthwhile to reconsider the traditional research circle method as a means of involving people in the third age in fulfilling their needs to participate in learning activities and make their voices heard. The findings are based on three cases of research circles consistently driven by the interests of the…

  17. The Art of Preview in Appropriate Teaching/Learning Material ...

    African Journals Online (AJOL)

    This study recognised the importance of print materials and texts in effective and efficient teaching and learning. Though important, there is a proliferation of these materials in the market that learners, researchers and teachers cannot read all within the limited time available to them. They resort to the art of previewing to ...

  18. Insights to regenerate materials: learning from nature

    Science.gov (United States)

    García-Aznar, J. M.; Valero, C.; Gómez-Benito, M. J.; Javierre, E.

    2016-08-01

    Self-healing materials, both biological and engineered, integrate the ability to repair themselves and recover their functionality using the resources inherently available to them. Although significant advances have been made, in recent years, for the design of different concepts of self-healing materials, this work aims to provide some insights into how living materials are able to regenerate or heal when a fracture or injury occurs. The main sensors that regulate this adaptive and regenerative behavior are the cells. These are able to sense the mechanical alterations in their surroundings and regulate their activity in order to remove dead tissue and/or create new tissue. Therefore, understanding how cells are able to regenerate tissues under complex and multiphysics conditions can define the biomimetics guidelines to heal through inert or traditional engineering materials. In this work, we present a combination of experiments and different kinds of multiscale and multiphysics models in order to understand how mechanics regulate some mechanisms at cell and tissue level. This combination of results aims to gain insight into the development of novel strategies for self-healing materials, mimicking the behavior induced by cells and biological tissues.

  19. Machine-learned and codified synthesis parameters of oxide materials

    Science.gov (United States)

    Kim, Edward; Huang, Kevin; Tomala, Alex; Matthews, Sara; Strubell, Emma; Saunders, Adam; McCallum, Andrew; Olivetti, Elsa

    2017-09-01

    Predictive materials design has rapidly accelerated in recent years with the advent of large-scale resources, such as materials structure and property databases generated by ab initio computations. In the absence of analogous ab initio frameworks for materials synthesis, high-throughput and machine learning techniques have recently been harnessed to generate synthesis strategies for select materials of interest. Still, a community-accessible, autonomously-compiled synthesis planning resource which spans across materials systems has not yet been developed. In this work, we present a collection of aggregated synthesis parameters computed using the text contained within over 640,000 journal articles using state-of-the-art natural language processing and machine learning techniques. We provide a dataset of synthesis parameters, compiled autonomously across 30 different oxide systems, in a format optimized for planning novel syntheses of materials.

  20. 2. A Circle of ideas

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 1; Issue 2. Geometry A Circle of Ideas. Kapil H Paranjape. Series Article Volume 1 Issue 2 February 1996 pp 26-31. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/001/02/0026-0031. Author Affiliations.

  1. On a Family of Circles

    Science.gov (United States)

    Feeman, Timothy G.

    2011-01-01

    We generalize a standard example from precalculus and calculus texts to give a simple description in polar coordinates of any circle that passes through the origin. We discuss an occurrence of this formula in the context of medical imaging. (Contains 1 figure.)

  2. Queuing systems on a circle

    NARCIS (Netherlands)

    Kroese, Dirk; Schmidt, Volker

    1993-01-01

    Consider a ring on which customers arrive according to a Poisson process. Arriving customers drop somewhere on the circle and wait there for a server who travels on the ring. Whenever this server encounters a customer, he stops and serves the customer according to an arbitrary service time

  3. Circle of willis and its variations; morphometric study in adult human cadavers

    OpenAIRE

    Raghavendra, Shirol VS, Daksha Dixit, Anil Kumar Reddy Y, Desai SP

    2014-01-01

    Background and Objectives: Circle of Willis plays a vital role in collateral circulation and redistribution of blood to all areas of the brain. Variation in circle of Willis is known to cause grave disorders like cerebrovascular disorders, subarachnoid haemorrhage, cerebral aneurysm and schizophrenia. The objectives of the present study are to study the formation and branching pattern of circle of Willis and also to study the distribution of variations. MATERIALS & Methods: The study was cond...

  4. REPORT AND RECOMMENDATION FOR LEARNING MATERIALS CENTER.

    Science.gov (United States)

    KEIM, WILLIAM A.; AND OTHERS

    THIS REPORT IS A HISTORY OF THE DEVELOPMENT OF A SET OF EDUCATIONAL SPECIFICATIONS FOR THE EXPANSION OF AN EXISTING LIBRARY AND THE ADDITION OF AN INSTRUCTIONAL MATERIALS CENTER. PRELIMINARY CONSIDERATION WAS GIVEN TO THE METHODS OF INSTRUCTION AT THE COLLEGE, THE STUDENTS, THE FACULTY, AND THE AVAILABLE FINANCIAL RESOURCES. A GENERAL STUDY…

  5. Machine learning and data science in soft materials engineering.

    Science.gov (United States)

    Ferguson, Andrew L

    2018-01-31

    In many branches of materials science it is now routine to generate data sets of such large size and dimensionality that conventional methods of analysis fail. Paradigms and tools from data science and machine learning can provide scalable approaches to identify and extract trends and patterns within voluminous data sets, perform guided traversals of high-dimensional phase spaces, and furnish data-driven strategies for inverse materials design. This topical review provides an accessible introduction to machine learning tools in the context of soft and biological materials by 'de-jargonizing' data science terminology, presenting a taxonomy of machine learning techniques, and surveying the mathematical underpinnings and software implementations of popular tools, including principal component analysis, independent component analysis, diffusion maps, support vector machines, and relative entropy. We present illustrative examples of machine learning applications in soft matter, including inverse design of self-assembling materials, nonlinear learning of protein folding landscapes, high-throughput antimicrobial peptide design, and data-driven materials design engines. We close with an outlook on the challenges and opportunities for the field.

  6. Machine learning and data science in soft materials engineering

    Science.gov (United States)

    Ferguson, Andrew L.

    2018-01-01

    In many branches of materials science it is now routine to generate data sets of such large size and dimensionality that conventional methods of analysis fail. Paradigms and tools from data science and machine learning can provide scalable approaches to identify and extract trends and patterns within voluminous data sets, perform guided traversals of high-dimensional phase spaces, and furnish data-driven strategies for inverse materials design. This topical review provides an accessible introduction to machine learning tools in the context of soft and biological materials by ‘de-jargonizing’ data science terminology, presenting a taxonomy of machine learning techniques, and surveying the mathematical underpinnings and software implementations of popular tools, including principal component analysis, independent component analysis, diffusion maps, support vector machines, and relative entropy. We present illustrative examples of machine learning applications in soft matter, including inverse design of self-assembling materials, nonlinear learning of protein folding landscapes, high-throughput antimicrobial peptide design, and data-driven materials design engines. We close with an outlook on the challenges and opportunities for the field.

  7. Learning Materials Recommendation Using Good Learners' Ratings and Content-Based Filtering

    Science.gov (United States)

    Ghauth, Khairil Imran; Abdullah, Nor Aniza

    2010-01-01

    The enormity of the amount of learning materials in e-learning has led to the difficulty of locating suitable learning materials for a particular learning topic, creating the need for recommendation tools within a learning context. In this paper, we aim to address this need by proposing a novel e-learning recommender system framework that is based…

  8. Adaptation Criteria for the Personalised Delivery of Learning Materials: A Multi-Stage Empirical Investigation

    Science.gov (United States)

    Thalmann, Stefan

    2014-01-01

    Personalised e-Learning represents a major step-change from the one-size-fits-all approach of traditional learning platforms to a more customised and interactive provision of learning materials. Adaptive learning can support the learning process by tailoring learning materials to individual needs. However, this requires the initial preparation of…

  9. Learning Materials for Open Learning in Further Education. Coombe Lodge Working Paper. Information Bank Number 1606.

    Science.gov (United States)

    Latcham, J.

    Arguing that extensive efforts to produce open learning materials should not be undertaken until the possibility of using or adapting existing materials is considered, this paper identifies current sources of materials available in Great Britain for non-advanced further education. The first sections of the paper review common types of open…

  10. The Arctic Circle

    Science.gov (United States)

    McDonald, Siobhan

    2016-04-01

    My name is Siobhan McDonald. I am a visual artist living and working in Dublin. My studio is based in The School of Science at University College Dublin where I was Artist in Residence 2013-2015. A fascination with time and the changeable nature of landmass has led to ongoing conversations with scientists and research institutions across the interweaving disciplines of botany, biology and geology. I am developing a body of work following a recent research trip to the North Pole where I studied the disappearing landscape of the Arctic. Prompted by my experience of the Arctic shelf receding, this new work addresses issues of the instability of the earth's materiality. The work is grounded in an investigation of material processes, exploring the dynamic forces that transform matter and energy. This project combines art and science in a fascinating exploration of one of the Earth's last relatively untouched wilderness areas - the High Arctic to bring audiences on journeys to both real and artistically re-imagined Arctic spaces. CRYSTALLINE'S pivotal process is collaboration: with The European Space Agency; curator Helen Carey; palaeontologist Prof. Jenny McElwain, UCD; and with composer Irene Buckley. CRYSTALLINE explores our desire to make corporeal contact with geological phenomena in Polar Regions. From January 2016, in my collaboration with Jenny McElwain, I will focus on the study of plants and atmospheres from the Arctic regions as far back as 400 million years ago, to explore the essential 'nature' that, invisible to the eye, acts as imaginary portholes into other times. This work will be informed by my arctic tracings of sounds and images recorded in the glaciers of this disappearing frozen landscape. In doing so, the urgencies around the tipping of natural balances in this fragile region will be revealed. The final work will emerge from my forthcoming residency at the ESA in spring 2016. Here I will conduct a series of workshops in ESA Madrid to work with

  11. Talking Circles for Adolescent Girls in an Urban High School

    Directory of Open Access Journals (Sweden)

    Ann Schumacher

    2014-10-01

    Full Text Available Restorative Practices (RP in schools is a new and emerging field. Meeting in Circles to build friendships, develop emotional literacy skills, resolve conflict, or learn interactively are some of the core components of these programs. This article describes a 2-year study of 12 weekly Talking Circles organized under the auspices of a RP program in an urban high school with 60 adolescent girls. Primary data sources included 257 hr of participant observations in Talking Circles and individual, semi-structured interviews with 31 students. The Relational Cultural model, rooted in the work of Jean Baker Miller, served as the conceptual framework for understanding teens’ interactions within the Circle’s unique set of social conditions in a school environment. Findings demonstrated that Talking Circles provided a safe space for peers helping peers, and that the girls improved their listening, anger management, and empathic skills, which led to greater self-efficacy. It appears that Talking Circles could provide another venue for developing social-emotional literacy skills and growth-fostering relationships in schools.

  12. Locating a circle on a sphere

    DEFF Research Database (Denmark)

    Brimberg, Jack; Juel, Henrik; Schöbel, Anita

    2003-01-01

    We consider the problem of locating a spherical circle with respect to existing facilities on a sphere, such that the sum of weighted distances between the circle and the facilities is minimized, or such that the maximum weighted distance is minimized. The problem properties are analyzed, and we...... give solution procedures. When the circle to be located is restricted to be a great circle, some simplifications are possible....

  13. The socio-materiality of learning practices and implications for the field of learning technology

    Directory of Open Access Journals (Sweden)

    Aditya Johri

    2011-12-01

    Full Text Available Although the use of digital information technologies in education has becomecommonplace, there are few, if any, central guiding frameworks or theories thatexplicate the relationship between technology and learning practices. In thispaper, I argue that such a theoretical framework can assist scholars and practitionersalike by working as a conduit to study and design learning technologies.Towards this goal, I propose socio-materiality as a key theoretical construct withvaluable insights and implications for the field of learning technology. Sociomaterialityhelps balance the disproportionate attention given to either the socialimplications of technology use or the material aspects of technology design.Furthermore, I forward ‘socio-material bricolage' as a useful analytical frameworkto examine and design technology-infused learning environments. I illustratethe value of the framework by applying it to three case studies of formaland informal technology-based learning.

  14. Locating a minisum circle in the plane

    DEFF Research Database (Denmark)

    Brimberg, Jack; Juel, Henrik; Schöbel, Anita

    2009-01-01

    We consider the problem of locating a circle with respect to existing facilities in the plane such that the sum of weighted distances between the circle and the facilities is minimized, i.e., we approximate a set of given points by a circle regarding the sum of weighted distances. If the radius...

  15. THE EFFECT OF LEARNING INQUIRY TRAINING MODEL ON STUDENT LEARNING OUTCOMES ON MEASUREMENT MATERIALS

    Directory of Open Access Journals (Sweden)

    Felisa Irawani Hutabarat

    2017-06-01

    Full Text Available This research aims to know the effect of learning model of inquiry learning results students training material measurement. This type of research is quasi experiment. Sampling done by cluster random sampling by taking 2 classes from grade 9 i.e. class X SCIENCE experiments as a class-B that add up to 35 people and class X SCIENCE-C as control classes that add up to 35 people. The instruments used to find out the results of student learning is the learning outcomes tests have been validated in multiple choice form numbered 15 reserved and activity sheets students. The results of the value obtained 37.71 pretes and postest 70.11. The t-test analysis retrieved thitung greater than ttabel so that it can be concluded no difference due to the influence of the learning model of inquiry learning results students training material measurement.

  16. The Influence of Interactive Learning Materials on Self-Regulated Learning and Learning Satisfaction of Primary School Teachers in Mongolia

    Directory of Open Access Journals (Sweden)

    Shengru Li

    2018-04-01

    Full Text Available The purpose of this study was to investigate the effects of interactive learning materials on learners’ self-regulated learning processes and learning satisfaction. A two-group experimental design was employed for 285 primary school teachers involved in teacher training. Teachers in the experimental group utilised interactive learning materials along with training videos and guidelines for their self-development at the school level. Teachers in the control group conducted self-development only with training videos and guidelines. The result was analysed using self-regulated learning theory explaining how one’s self-regulation processes affect learning satisfaction. Five self-regulation processes were identified in this study: internal motivation, motivation for better assessment, planning and organizing skills, critical and positive thinking skills, and effort regulation. The analysis was conducted in two steps. First, t-test analysis was used to identify the significant differences between the experimental group and the control group. The analysis revealed: (1 teachers conducting self-development with interactive learning materials were highly motivated to achieve better teacher assessment, (2 teachers with interactive learning materials had higher learning satisfaction. Second, the study further investigated the effect of interactive materials on the relationship between self-regulation processes and learning satisfaction, using moderation analysis. The results showed that interactive materials significantly affect the relationship between motivation for better assessment and learning satisfaction, as well as the relationship between internal motivation and learning satisfaction. These results were complemented by qualitative analysis including interviews and focus group discussions with teachers.

  17. Visual Thinking, Algebraic Thinking, and a Full Unit-Circle Diagram.

    Science.gov (United States)

    Shear, Jonathan

    1985-01-01

    The study of trigonometric functions in terms of the unit circle offer an example of how students can learn algebraic relations and operations while using visually oriented thinking. Illustrations are included. (MNS)

  18. The Effects of Digital Learning Material on Students' Mathematics Learning in Vocational Education

    Science.gov (United States)

    Zwart, Diana P.; Van Luit, Johannes E. H.; Noroozi, Omid; Goei, Sui Lin

    2017-01-01

    This study investigates the effects of Digital Learning Material (DLM) including instructional clips, online guidance, structuring of content, and a collaboration tool on students' mathematics learning in Dutch vocational education. A pretest-posttest design was used. Apprenticeship students were asked to complete assignments and to discuss them…

  19. Quantum localisation on the circle

    Science.gov (United States)

    Fresneda, Rodrigo; Gazeau, Jean Pierre; Noguera, Diego

    2018-05-01

    Covariant integral quantisation using coherent states for semi-direct product groups is implemented for the motion of a particle on the circle. In this case, the phase space is the cylinder, which is viewed as a left coset of the Euclidean group E(2). Coherent states issued from fiducial vectors are labeled by points in the cylinder and depend also on extra parameters. We carry out the corresponding quantisations of the basic classical observables, particularly the angular momentum and the 2π-periodic discontinuous angle function. We compute their corresponding lower symbols. The quantum localisation on the circle is examined through the properties of the angle operator yielded by our procedure, its spectrum and lower symbol, its commutator with the quantum angular momentum, and the resulting Heisenberg inequality. Comparison with other approaches to the long-standing question of the quantum angle is discussed.

  20. Josephson junctions and circle maps

    Energy Technology Data Exchange (ETDEWEB)

    Bak, P; Bohr, T; Jensen, M H; Christiansen, P V

    1984-01-01

    The return map of a differential equation for the current driven Josephson junction, or the damped driven pendulum, is shown numerically to be a circle map. Phase locking, noise and hysteresis, can thus be understood in a simple and coherent way. The transition to chaos is related to the development of a cubic inflection point. Recent theoretical results on universal behavior at the transition to chaos can readily be checked experimentally by studying I-V characteristics. 17 references, 1 figure.

  1. Exploiting the Dynamics of Soft Materials for Machine Learning.

    Science.gov (United States)

    Nakajima, Kohei; Hauser, Helmut; Li, Tao; Pfeifer, Rolf

    2018-06-01

    Soft materials are increasingly utilized for various purposes in many engineering applications. These materials have been shown to perform a number of functions that were previously difficult to implement using rigid materials. Here, we argue that the diverse dynamics generated by actuating soft materials can be effectively used for machine learning purposes. This is demonstrated using a soft silicone arm through a technique of multiplexing, which enables the rich transient dynamics of the soft materials to be fully exploited as a computational resource. The computational performance of the soft silicone arm is examined through two standard benchmark tasks. Results show that the soft arm compares well to or even outperforms conventional machine learning techniques under multiple conditions. We then demonstrate that this system can be used for the sensory time series prediction problem for the soft arm itself, which suggests its immediate applicability to a real-world machine learning problem. Our approach, on the one hand, represents a radical departure from traditional computational methods, whereas on the other hand, it fits nicely into a more general perspective of computation by way of exploiting the properties of physical materials in the real world.

  2. Circle activity of quality assurance in construction

    International Nuclear Information System (INIS)

    1982-05-01

    This book explains purpose, introduction 10 things to keep in mind, management and role of QC activity, TQC and QC circle activity in construction, introduction of the case of QC circle activity in a company like QC circle activity as TQC activity and QC circle for the bright future, case of experience of QC circle activity such as decreasing concrete loss, improvement of sleeve sticking on the ps wooden floor, overcoming handicap in field where one person works and point of QC 7 tools and order of improvement and management.

  3. Comparing Interactions in Literature Circles in Both Online and in Class Discussions

    Science.gov (United States)

    Skeen, Christel Ghrist

    2014-01-01

    Discourse analysis of literature circles can lead educators to understand the different types of interactions taking place as students talk about text. Social and academic interactions exist in both face-to-face and online discussions of reading material. This study examines two different settings of literature circles and compares interactions of…

  4. Professional Learning and the Materiality of Social Practice

    Science.gov (United States)

    Makitalo, Asa

    2012-01-01

    This article addresses professional learning as intrinsic to social practices. It takes its point of departure in a sociocultural notion of mediation and communication in human activity and addresses the constitutive nature of language and artefacts as material-semiotic tools in the social coordination of perspectives and action, meaning-making…

  5. Semantic Modelling for Learning Styles and Learning Material in an E-Learning Environment

    Science.gov (United States)

    Alhasan, Khawla; Chen, Liming; Chen, Feng

    2017-01-01

    Various learners with various requirements have led to the raise of a crucial concern in the area of e-learning. A new technology for propagating learning to learners worldwide, has led to an evolution in the e-learning industry that takes into account all the requirements of the learning process. In spite of the wide growing, the e-learning…

  6. On a conjecture concerning helly circle graphs

    Directory of Open Access Journals (Sweden)

    Durán Guillermo

    2003-01-01

    Full Text Available We say that G is an e-circle graph if there is a bijection between its vertices and straight lines on the cartesian plane such that two vertices are adjacent in G if and only if the corresponding lines intersect inside the circle of radius one. This definition suggests a method for deciding whether a given graph G is an e-circle graph, by constructing a convenient system S of equations and inequations which represents the structure of G, in such a way that G is an e-circle graph if and only if S has a solution. In fact, e-circle graphs are exactly the circle graphs (intersection graphs of chords in a circle, and thus this method provides an analytic way for recognizing circle graphs. A graph G is a Helly circle graph if G is a circle graph and there exists a model of G by chords such that every three pairwise intersecting chords intersect at the same point. A conjecture by Durán (2000 states that G is a Helly circle graph if and only if G is a circle graph and contains no induced diamonds (a diamond is a graph formed by four vertices and five edges. Many unsuccessful efforts - mainly based on combinatorial and geometrical approaches - have been done in order to validate this conjecture. In this work, we utilize the ideas behind the definition of e-circle graphs and restate this conjecture in terms of an equivalence between two systems of equations and inequations, providing a new, analytic tool to deal with it.

  7. Machine learning in materials informatics: recent applications and prospects

    Science.gov (United States)

    Ramprasad, Rampi; Batra, Rohit; Pilania, Ghanshyam; Mannodi-Kanakkithodi, Arun; Kim, Chiho

    2017-12-01

    Propelled partly by the Materials Genome Initiative, and partly by the algorithmic developments and the resounding successes of data-driven efforts in other domains, informatics strategies are beginning to take shape within materials science. These approaches lead to surrogate machine learning models that enable rapid predictions based purely on past data rather than by direct experimentation or by computations/simulations in which fundamental equations are explicitly solved. Data-centric informatics methods are becoming useful to determine material properties that are hard to measure or compute using traditional methods—due to the cost, time or effort involved—but for which reliable data either already exists or can be generated for at least a subset of the critical cases. Predictions are typically interpolative, involving fingerprinting a material numerically first, and then following a mapping (established via a learning algorithm) between the fingerprint and the property of interest. Fingerprints, also referred to as "descriptors", may be of many types and scales, as dictated by the application domain and needs. Predictions may also be extrapolative—extending into new materials spaces—provided prediction uncertainties are properly taken into account. This article attempts to provide an overview of some of the recent successful data-driven "materials informatics" strategies undertaken in the last decade, with particular emphasis on the fingerprint or descriptor choices. The review also identifies some challenges the community is facing and those that should be overcome in the near future.

  8. Lessons learned by southern states in transportation of radioactive materials

    International Nuclear Information System (INIS)

    1992-03-01

    This report has been prepared under a cooperative agreement with DOE's Office of Civilian Radioactive Waste Management (OCRWM) and is a summary of the lessons learned by southern states regarding the transportation of radioactive materials including High-Level Radioactive Wastes (HLRW) and Spent Nuclear Fuel (SNF). Sources used in this publication include interviews of state radiological health and public safety officials that are members of the Southern States Energy Board (SSEB) Advisory Committee on Radioactive Materials Transportation, as well as the Board's Transuranic (TRU) Waste Transportation Working Group. Other sources include letters written by the above mentioned committees concerning various aspects of DOE shipment campaigns

  9. "Take Me to the Mathematical Circle!"

    OpenAIRE

    Veilande, Ingrida

    2012-01-01

    Preparing the students for various mathematical contests are the key goals of mathematical circles in Latvian schools. The reason why mathematical circles for students of primary schools are organised rather seldom is that problem sets of Olympiads are mainly created for students of 5th to 12th grades. The young participants of circles have to be introduced with the basic principles of Olimpiads mathematics too.

  10. Nonlinear machine learning in soft materials engineering and design

    Science.gov (United States)

    Ferguson, Andrew

    The inherently many-body nature of molecular folding and colloidal self-assembly makes it challenging to identify the underlying collective mechanisms and pathways governing system behavior, and has hindered rational design of soft materials with desired structure and function. Fundamentally, there exists a predictive gulf between the architecture and chemistry of individual molecules or colloids and the collective many-body thermodynamics and kinetics. Integrating machine learning techniques with statistical thermodynamics provides a means to bridge this divide and identify emergent folding pathways and self-assembly mechanisms from computer simulations or experimental particle tracking data. We will survey a few of our applications of this framework that illustrate the value of nonlinear machine learning in understanding and engineering soft materials: the non-equilibrium self-assembly of Janus colloids into pinwheels, clusters, and archipelagos; engineering reconfigurable ''digital colloids'' as a novel high-density information storage substrate; probing hierarchically self-assembling onjugated asphaltenes in crude oil; and determining macromolecular folding funnels from measurements of single experimental observables. We close with an outlook on the future of machine learning in soft materials engineering, and share some personal perspectives on working at this disciplinary intersection. We acknowledge support for this work from a National Science Foundation CAREER Award (Grant No. DMR-1350008) and the Donors of the American Chemical Society Petroleum Research Fund (ACS PRF #54240-DNI6).

  11. Fairy circle landscapes under the sea

    KAUST Repository

    Ruiz-Reynés, Daniel

    2017-08-03

    Short-scale interactions yield large-scale vegetation patterns that, in turn, shape ecosystem function across landscapes. Fairy circles, which are circular patches bare of vegetation within otherwise continuous landscapes, are characteristic features of semiarid grasslands. We report the occurrence of submarine fairy circle seascapes in seagrass meadows and propose a simple model that reproduces the diversity of seascapes observed in these ecosystems as emerging from plant interactions within the meadow. These seascapes include two extreme cases, a continuous meadow and a bare landscape, along with intermediate states that range from the occurrence of persistent but isolated fairy circles, or solitons, to seascapes with multiple fairy circles, banded vegetation, and

  12. Locating a circle on a sphere

    DEFF Research Database (Denmark)

    Brimberg, Jack; Juel, Henrik; Schöbel, Anita

    2007-01-01

    We consider the problem of locating a spherical circle with respect to existing facilities on a sphere, such that the sum of distances between the circle and the facilities is minimized or such that the maximum distance is minimized. The problem properties are analyzed, and we give solution...... procedures. When the circle to be located is restricted to be a great circle, some simplifications are possible. The models may be used in preliminary studies on the location of large linear facilities on the earth's surface, such as superhighways, pipelines, and transmission lines, or in totally different...

  13. Information flow through the disaster circle

    DEFF Research Database (Denmark)

    Egedorf, Maren Marie; Villanueva Holm-Nielsen, Pablo

    The traditional view of the disaster circle is phase based. Disaster and development professionals recognize that the actions carried out in the various phases of the disaster management cycle are overlapping and build upon each other, having resilience as the overall goal. However information does...... not necessarily flow across the phases of the circle in an effective manner. This is particularly true for the information that crosses the disaster point of the circle. Organisations carry out assessments, surveys and baselines for various purposes, at various points of time in the disaster circle. Output...

  14. Fairy circle landscapes under the sea

    KAUST Repository

    Ruiz-Reyné s, Daniel; Gomila, Damià ; Sintes, Tomà s; Herná ndez-Garcí a, Emilio; Marbà , Nú ria; Duarte, Carlos M.

    2017-01-01

    Short-scale interactions yield large-scale vegetation patterns that, in turn, shape ecosystem function across landscapes. Fairy circles, which are circular patches bare of vegetation within otherwise continuous landscapes, are characteristic features of semiarid grasslands. We report the occurrence of submarine fairy circle seascapes in seagrass meadows and propose a simple model that reproduces the diversity of seascapes observed in these ecosystems as emerging from plant interactions within the meadow. These seascapes include two extreme cases, a continuous meadow and a bare landscape, along with intermediate states that range from the occurrence of persistent but isolated fairy circles, or solitons, to seascapes with multiple fairy circles, banded vegetation, and

  15. Semantic modelling for learning styles and learning material in an e-learning environment

    OpenAIRE

    Alhasan, K.; Chen, Liming; Chen, Feng

    2017-01-01

    The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the URI link. Various learners with various requirements have led to the raise of a crucial concern in the area of e-learning. A new technology for propagating learning to learners worldwide, has led to an evolution in the e-learning industry that takes into account all the requirements of the learning process. In spite of the wide growing, the e-learning te...

  16. Virtual screening of inorganic materials synthesis parameters with deep learning

    Science.gov (United States)

    Kim, Edward; Huang, Kevin; Jegelka, Stefanie; Olivetti, Elsa

    2017-12-01

    Virtual materials screening approaches have proliferated in the past decade, driven by rapid advances in first-principles computational techniques, and machine-learning algorithms. By comparison, computationally driven materials synthesis screening is still in its infancy, and is mired by the challenges of data sparsity and data scarcity: Synthesis routes exist in a sparse, high-dimensional parameter space that is difficult to optimize over directly, and, for some materials of interest, only scarce volumes of literature-reported syntheses are available. In this article, we present a framework for suggesting quantitative synthesis parameters and potential driving factors for synthesis outcomes. We use a variational autoencoder to compress sparse synthesis representations into a lower dimensional space, which is found to improve the performance of machine-learning tasks. To realize this screening framework even in cases where there are few literature data, we devise a novel data augmentation methodology that incorporates literature synthesis data from related materials systems. We apply this variational autoencoder framework to generate potential SrTiO3 synthesis parameter sets, propose driving factors for brookite TiO2 formation, and identify correlations between alkali-ion intercalation and MnO2 polymorph selection.

  17. Machine-learning-assisted materials discovery using failed experiments

    Science.gov (United States)

    Raccuglia, Paul; Elbert, Katherine C.; Adler, Philip D. F.; Falk, Casey; Wenny, Malia B.; Mollo, Aurelio; Zeller, Matthias; Friedler, Sorelle A.; Schrier, Joshua; Norquist, Alexander J.

    2016-05-01

    Inorganic-organic hybrid materials such as organically templated metal oxides, metal-organic frameworks (MOFs) and organohalide perovskites have been studied for decades, and hydrothermal and (non-aqueous) solvothermal syntheses have produced thousands of new materials that collectively contain nearly all the metals in the periodic table. Nevertheless, the formation of these compounds is not fully understood, and development of new compounds relies primarily on exploratory syntheses. Simulation- and data-driven approaches (promoted by efforts such as the Materials Genome Initiative) provide an alternative to experimental trial-and-error. Three major strategies are: simulation-based predictions of physical properties (for example, charge mobility, photovoltaic properties, gas adsorption capacity or lithium-ion intercalation) to identify promising target candidates for synthetic efforts; determination of the structure-property relationship from large bodies of experimental data, enabled by integration with high-throughput synthesis and measurement tools; and clustering on the basis of similar crystallographic structure (for example, zeolite structure classification or gas adsorption properties). Here we demonstrate an alternative approach that uses machine-learning algorithms trained on reaction data to predict reaction outcomes for the crystallization of templated vanadium selenites. We used information on ‘dark’ reactions—failed or unsuccessful hydrothermal syntheses—collected from archived laboratory notebooks from our laboratory, and added physicochemical property descriptions to the raw notebook information using cheminformatics techniques. We used the resulting data to train a machine-learning model to predict reaction success. When carrying out hydrothermal synthesis experiments using previously untested, commercially available organic building blocks, our machine-learning model outperformed traditional human strategies, and successfully predicted

  18. Developing learning trajectory on the circumference of a cycle with realistic mathematics education (RME)

    Science.gov (United States)

    Indriani, Novi; Julie, Hongki

    2017-08-01

    According Nuranisa, the students' difficulties on a lesson about the circumference of a circle were to understand the concept of what was the circumference of a circle and solve problems associated with the circumference of a circle [8]. According Nuranisa, this is because the teacher only gives a formula to find the circumference of a circle without helping students to construct the formula [8]. The purposes of this study were (1) to develop the hypothetical learning trajectory (HLT) for the cycle circumference material, (2) to describe the student results from the HLT implementation. The type of research used in this research was the design research developed by Gravemeijer and Cobb (2006). According Gravemeijer and Cobb, the design research was divided into three stages: (1) preparing for the experiment, (2) design experiments, and (3) retrospective analysis [6]. In this study, researchers developed the student learning trajectories which were help students to construct their knowledge about the understanding and how to calculate the circumference of a circle. The context used on the students' learning trajectory was sports and arts event. The learning trajectory has been tried out for 15 grade five students on the Budya Wacana elementary school in Yogyakarta. In this paper, researchers would describe how the learning trajectory traversed students to construct their knowledge about the understanding and how to calculate the circumference of the circle and the student thinking process on the understanding and how to calculate the circumference of a circle. The results showed that students could construct about the understanding of the circumference of a circle and how to calculate the circumference of a circle through the student learning trajectory.

  19. The Development of Interactive Mathematics Learning Material Based on Local Wisdom with .swf Format

    Science.gov (United States)

    Abadi, M. K.; Asih, E. C. M.; Jupri, A.

    2018-05-01

    Learning materials used by students and schools in Serang district are lacking because they do not contain local wisdom content. The aim of this study is to improve the deficiencies in learning materials used by students by making interactive materials based on local wisdom content with format .swf. The method in this research is research and development (RnD) with ADDIE model. In making this interactive learning materials in accordance with the stages of the ADDIE study. The results of this study include interactive learning materials based on local wisdom. This learning material is suitable for digital students.

  20. Squaring the circle of healthcare supplies.

    Science.gov (United States)

    Böhme, Tillmann; Williams, Sharon; Childerhouse, Paul; Deakins, Eric; Towill, Denis

    2014-01-01

    The purpose of this paper is to use a systems lens to assess the comparative performance of healthcare supply chains and provide guidance for their improvement. A well-established and rigorous multi-method audit methodology, based on the uncertainty circle model, yields an objective assessment of value stream performance in eight Australasian public sector hospitals. Cause-effect analysis identifies the major barriers to achieving smooth, seamless flows. Potentially high-leverage remedial actions identified using systems thinking are examined with the aid of an exemplar case. The majority of the healthcare value streams studied are underperforming compared with those in the European automotive industry. Every public hospital appears to be caught in the grip of vicious circles of system uncertainty, in large part being caused by problems of their own making. The single exception is making good progress towards seamless functional integration, which has been achieved by elevating supply chain management to a core competence; having a clearly articulated supply chain vision; adopting a systems approach; and, managing supplies with accurate information. The small number of cases limits the generalisability of the findings at this time. Hospital supply chain managers endeavouring to achieve smooth and seamless supply flows should attempt to elevate the status of supplies management within their organisation to that of a core competence, and should use accurate information to manage their value streams holistically as a set of interwoven processes. A four-level prism model is proposed as a useful framework for thus improving healthcare supply delivery systems. Material flow concepts originally developed to provide objective assessments of value stream performance in commercial settings are adapted for use in a healthcare setting. The ability to identify exemplar organisations via a context-free uncertainty measure, and to use systems thinking to identify high

  1. To have or to learn? The effects of materialism on British and Chinese children's learning

    OpenAIRE

    Ku, L.; Dittmar, H.; Banerjee, R.

    2014-01-01

    The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link. This article presents a systematic attempt to examine the associations of materialism with learning in 9- to 11-year-old children in 2 countries of similar economic development but different cultural heritage. Using cross-sectional, longitudinal, and experimental methods, we test a theoretically driven model of associations among materialism, l...

  2. Activity know-how and doctrine of QC circle

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1976-09-15

    This books introduces activity know-how of QC circle giving descriptions of basic of QC circle activities, introduction operation and development and mind of QC circle activities, method for beginning of QC circle activity like, way order, motivation of introduction of QC circle activity, propel method of QC circle activities, such as leadership, brain storming, and rule of QC circle activity, management and propel method for improvement, development of QC circle activities. It also deals with doctrine of basic of QC circle, purpose, self improvement and group activity.

  3. Activity know-how and doctrine of QC circle

    International Nuclear Information System (INIS)

    1976-09-01

    This books introduces activity know-how of QC circle giving descriptions of basic of QC circle activities, introduction operation and development and mind of QC circle activities, method for beginning of QC circle activity like, way order, motivation of introduction of QC circle activity, propel method of QC circle activities, such as leadership, brain storming, and rule of QC circle activity, management and propel method for improvement, development of QC circle activities. It also deals with doctrine of basic of QC circle, purpose, self improvement and group activity.

  4. Teacher's Ability to Develop Learning Materials Potentially Mathematical Discourse

    Directory of Open Access Journals (Sweden)

    Hamdani Hamdani

    2017-10-01

    Full Text Available In the process of learning in the field, the teacher still dominates the conversation while the students as a passive listener. As a result, not only the communication skills of students who are less developed, the understanding of student material is also lacking. Therefore it is necessary to research the ability of teachers in developing learning tools potentially mathematical discourse to improve students' mathematical communication skills. The research method used is descriptive. Research activities include: identification of problems through questionnaires, observation, and interviews; teacher training; teachers develop learning tools; validation; and enhancement of the device by the teacher. The subject of this research is the junior high school mathematics teacher from several districts in the border area of Sambas-Sarawak Regency. The results show that in every learning mathematics there is always a conversation between teachers and students, but rarely use the question "why" and "how". Most teacher-made lesson plans contain scenarios of conversations between teachers and students, but just plain questioning, have not led to a debate between each other so that understanding becomes deeper. Student worksheet made by the teacher in the form of a matter of the ordinary story, rarely load non-routine problem let alone open-ended.

  5. Darboux cyclides and webs from circles

    KAUST Repository

    Pottmann, Helmut; Shi, Ling; Skopenkov, Mikhail

    2012-01-01

    to these surfaces based on the spherical model of 3D Möbius geometry, we provide computational tools for the identification of circle families on a given cyclide and for the direct design of those. In particular, we show that certain triples of circle families may

  6. The circle equation over finite fields

    DEFF Research Database (Denmark)

    Aabrandt, Andreas; Hansen, Vagn Lundsgaard

    2017-01-01

    Interesting patterns in the geometry of a plane algebraic curve C can be observed when the defining polynomial equation is solved over the family of finite fields. In this paper, we examine the case of C the classical unit circle defined by the circle equation x2 + y2 = 1. As a main result, we es...

  7. Beyond Quality Circles: Self-Managing Teams.

    Science.gov (United States)

    Sims, Henry P., Jr.; Dean, James W., Jr.

    1985-01-01

    This article reviews the quality circle concept, shows why its characteristics appeal to American executives, and examines some of its limitations. It looks at self-managing teams and discusses the reasons that adoptions have been relatively few. It then shows what organizational conditions are necessary for quality circles to evolve into teams.…

  8. Exploring Factors That Influence Quality Literature Circles

    Science.gov (United States)

    Young, Chase; Mohr, Kathleen A. J.

    2018-01-01

    Research indicates that literature circles are an authentic means for literacy development that students typically enjoy. To better understand the potential value and to add to the research base regarding literature circles, this study, involving 17 fourth graders, explores factors that may influence the quality of literature discussions,…

  9. Development of Distant Learning Laboratory and Creation of Educational Materials

    Science.gov (United States)

    Considine, Michelle

    1995-01-01

    The Office of Education's fundamental goal is to disseminate information, mostly that which relates to science and technology. In this attempt, as I have observed, the office has many programs bringing both students and teachers to NASA Langley to expose them to the facilities and to teach them some about the scientific theory and about available modern technology. As a way of expanding the audience that can be reached, as the expense of bringing people in is limiting, Marchelle Canright has proposed establishing a center dedicated to researching and producing distant learning videos. Although distant learning through telecommunications is not a new concept, as many universities, colleges, and precollege level schools offer televised courses, the research in this field has been limited. Many of the standing distant learning broadcasts are simply recordings of teachers in classrooms giving lectures to their own students; they are not aimed at the television audience. In some cases the videos are produced without a Live-lecture atmosphere, but are still only classroom lectures. In either case, however, the full range of capabilities of video production are not being fully utilized. Methods for best relaying educational material have not been explored. Possibilities for including computerized images and video clips for the purpose of showing diagrams and processes, as well as examples in fitting cases, may add considerably to the educational value of these videos. Also, through Internet and satellite links, it is possible for remote students to interact with the teachers during televised sessions. These possibilities might, also, add to the effectiveness of distant learning programs. Ms. Canright's proposed center will be dedicated to researching these possibilities and eventually spreading the results to distant learning program managers. This is the project I was involved in over the summer. As implied, the center is still at the foundation stages. Ms. Canright has

  10. Lessons learned from material management at Vandellos-I

    International Nuclear Information System (INIS)

    Albarran, J.L. Santiago

    2003-01-01

    Declassification Container ' by means of a gamma spectrometry measuring system. On the basis of the experience this paper will describe the lessons learned in material management in Vandellos-I, in the areas of: - Organisation and planning; - Important role of logistics; - Capacity of the different storage areas; - Conservatism of the clearance process; - Cost/effort of Clearance process; - Recycle / Reuse; - Management and traceability of information

  11. IP-MLI: An Independency of Learning Materials from Platforms in a Mobile Learning using Intelligent Method

    Directory of Open Access Journals (Sweden)

    Mohammed Abdallh Otair

    2006-06-01

    Full Text Available Attempting to deliver a monolithic mobile learning system is too inflexible in view of the heterogeneous mixture of hardware and services available and the desirability of facility blended approaches to learning delivery, and how to build learning materials to run on all platforms[1]. This paper proposes a framework of mobile learning system using an intelligent method (IP-MLI . A fuzzy matching method is used to find suitable learning material design. It will provide a best matching for each specific platform type for each learner. The main contribution of the proposed method is to use software layer to insulate learning materials from device-specific features. Consequently, many versions of learning materials can be designed to work on many platform types.

  12. Geršgorin and his circles

    CERN Document Server

    Varga, Richard S

    2004-01-01

    TheGer? sgorin CircleTheorem, averywell-known resultin linear algebra today, stems from the paper of S. Ger? sgorin in 1931 (which is reproduced in AppendixD)where,givenanarbitraryn×ncomplexmatrix,easyarithmetic operationsontheentriesofthematrixproducendisks,inthecomplexplane, whose union contains all eigenvalues of the given matrix. The beauty and simplicity of Ger? sgorin’s Theorem has undoubtedly inspired further research in this area, resulting in hundreds of papers in which the name “Ger? sgorin” appears. The goal of this book is to give a careful and up-to-date treatment of various aspects of this topic. The author ?rst learned of Ger? sgorin’s results from friendly conversations with Olga Taussky-Todd and John Todd, which inspired me to work in this area.Olgawasclearlypassionateaboutlinearalgebraandmatrixtheory,and her path-?nding results in these areas were like a magnet to many, including this author! It is the author’s hope that the results, presented here on topics related to Ger? sgorin...

  13. The Prague Linguistic Circle and Dialectics

    Directory of Open Access Journals (Sweden)

    Ondřej Sládek

    2017-12-01

    Full Text Available The study deals with dialectics in the context of the Prague Linguistic Circle, particularly in the context of Jan Mukařovský’s thinking. The essay presents 1 main sources of Mukařovský’s dialectics, and outlines 2 Mukařovský’s dialectical method. The notion of dialectics appears in Mukařovský’s scholarly work in a set of connections. He applied dialectics as a method, manner or form of rationality. It served as a means of gaining knowledge about the world, specific phenomena and objects, their essence, interconnectedness as well as development. Mukařovský also used it as a procedure for resolving contradictions (antinomies that he encountered in his scientific explorations and in ordinary practical activities. He understood dialectical thinking as dynamic, open, and pluralist thinking striving to reflect reality as a constant process. Gradual coming together of dialectics and materialism, evident in Mukařovský’s scholarly works from the mid-1930s, resulted, ten years later, in a public adoption of dialectical materialism.

  14. Interrogating History: Promoting Student Activism Using Children's Literature and the Full Circling Process

    Science.gov (United States)

    Long, Trisha Wies

    2017-01-01

    Adolescents are often disengaged in the learning process, being more focused on social media and self-interest than classroom content. Full circling is a process that can be used to help students collaboratively engage in learning and actively reflect on historical events--especially those that are under reported in history books. In the present…

  15. NASA Composite Materials Development: Lessons Learned and Future Challenges

    Science.gov (United States)

    Tenney, Darrel R.; Davis, John G., Jr.; Pipes, R. Byron; Johnston, Norman

    2009-01-01

    Composite materials have emerged as the materials of choice for increasing the performance and reducing the weight and cost of military, general aviation, and transport aircraft and space launch vehicles. Major advancements have been made in the ability to design, fabricate, and analyze large complex aerospace structures. The recent efforts by Boeing and Airbus to incorporate composite into primary load carrying structures of large commercial transports and to certify the airworthiness of these structures is evidence of the significant advancements made in understanding and use of these materials in real world aircraft. NASA has been engaged in research on composites since the late 1960 s and has worked to address many development issues with these materials in an effort to ensure safety, improve performance, and improve affordability of air travel for the public good. This research has ranged from synthesis of advanced resin chemistries to development of mathematical analyses tools to reliably predict the response of built-up structures under combined load conditions. The lessons learned from this research are highlighted with specific examples to illustrate the problems encountered and solutions to these problems. Examples include specific technologies related to environmental effects, processing science, fabrication technologies, nondestructive inspection, damage tolerance, micromechanics, structural mechanics, and residual life prediction. The current state of the technology is reviewed and key issues requiring additional research identified. Also, grand challenges to be solved for expanded use of composites in aero structures are identified.

  16. Circles of quality in radiological safety

    International Nuclear Information System (INIS)

    Gonzalez F, J.A.

    1991-01-01

    The concept of Circles of quality arose in Japan like an option to capitalize the enormous potential that the workers had developed as a result of its training in the statistical tools of quality. There are presented a series of steps that could be given with the purpose of implementing a program of ALARA circles. The radiological safety is in it finishes instance responsibility of each hard-working one and there won't be a protection program that can work among apathetic people, it is in this sense where the ALARA circles can provide its maximum contribution creating a conscience of responsibility and participation

  17. Violence in the eye of adolescents: education intervention with Culture Circles.

    Science.gov (United States)

    Brandão Neto, Waldemar; Silva, Marta Angélica Iossi; de Aquino, Jael Maria; de Lima, Luciane Soares; Monteiro, Estela Maria Leite Meirelles

    2015-01-01

    to apply the methodology of Culture Circles on adolescents as a strategy for health education of nurses in the construction of the collective knowledge of the thematic violence. action research type and qualitative study. Participants were 11 adolescents from a public school in Recife, PE, Brazil. Data production in Culture Circles included the participant observation with field diary, photographic recording and filming, as well as the photovoice technique. The analysis was performed by triangulating data in dialogue with the literature. it was shown that the problematizing action provided by the Culture Circle made possible to create situations in which adolescents felt invited to critically refl ect on the phenomenon of violence in all its complexity. the health education intervention, performed by Culture Circles, added learning and mutual growth subsidizing nursing care actions that excel at leadership and autonomy of adolescents.

  18. Citizenship as individual responsibility through personal investment - an ethnographic study in a study circle

    Directory of Open Access Journals (Sweden)

    Annika Pastuhov

    2017-05-01

    Full Text Available The aim of this article is to shed light on how the democratic ideal of institutionalised Nordic popular education is realised through an ethnographic field study in an English as a foreign language study circle. The study focuses on how participants express their citizenship when taking part in the study circle. Citizenship is viewed as a dynamic concept comprising the aspects of 'being' and 'acting' and constructed in and through social interaction. The study circle is arranged as a classroom practice: The study circle leader organises the activities, while the participants engage in exercises and attempt to learn correct usage. Through their participation, the participants take individual responsibility for what they see as their lack of sufficient knowledge of English. The participants describe their participation as a personal and voluntary investment in themselves. In light of the study, the individual stance is discussed as limiting possibilities for responsibility and thus expressions of citizenship.

  19. The influence of student characteristics on the use of adaptive e-learning material

    NARCIS (Netherlands)

    van Seters, J. R.; Ossevoort, M. A.; Tramper, J.; Goedhart, M. J.

    Adaptive e-learning materials can help teachers to educate heterogeneous student groups. This study provides empirical data about the way academic students differ in their learning when using adaptive e-learning materials. Ninety-four students participated in the study. We determined characteristics

  20. Empowering vocational math teachers by using digital learning material (DLM) with workplace assignments

    NARCIS (Netherlands)

    Zwart, D.P.; van Luit, J.E.H.; Goei, S. L.

    2016-01-01

    Digital Learning Material (DLM) are fast becoming a key instrument in teaching. The focus on E-learning systems with Digital Learning Material (DLM) is mostly on the medium and resources, instead of on the role of teachers. But like students, teachers also need to professionalize their digital

  1. Cultivating Design Thinking in Students through Material Inquiry

    Science.gov (United States)

    Renard, Helene

    2014-01-01

    Design thinking is a way of understanding and engaging with the world that has received much attention in academic and business circles in recent years. This article examines a hands-on learning model as a vehicle for developing design thinking capacity in students. An overview of design thinking grounds the discussion of the material-based…

  2. Robust Circle Detection Using Harmony Search

    Directory of Open Access Journals (Sweden)

    Jaco Fourie

    2017-01-01

    Full Text Available Automatic circle detection is an important element of many image processing algorithms. Traditionally the Hough transform has been used to find circular objects in images but more modern approaches that make use of heuristic optimisation techniques have been developed. These are often used in large complex images where the presence of noise or limited computational resources make the Hough transform impractical. Previous research on the use of the Harmony Search (HS in circle detection showed that HS is an attractive alternative to many of the modern circle detectors based on heuristic optimisers like genetic algorithms and simulated annealing. We propose improvements to this work that enables our algorithm to robustly find multiple circles in larger data sets and still work on realistic images that are heavily corrupted by noisy edges.

  3. Area of Common Overlap of Three Circles

    National Research Council Canada - National Science Library

    Fewell, M. P

    2006-01-01

    .... The results presented here have general significance in the corpus of menstruation formulae, and could be of specific use in any quantitative application of the three-circle Venn diagram such as for...

  4. Darboux cyclides and webs from circles

    KAUST Repository

    Pottmann, Helmut

    2012-01-01

    Motivated by potential applications in architecture, we study Darboux cyclides. These algebraic surfaces of order ≤4 are a superset of Dupin cyclides and quadrics, and they carry up to six real families of circles. Revisiting the classical approach to these surfaces based on the spherical model of 3D Möbius geometry, we provide computational tools for the identification of circle families on a given cyclide and for the direct design of those. In particular, we show that certain triples of circle families may be arranged as so-called hexagonal webs, and we provide a complete classification of all possible hexagonal webs of circles on Darboux cyclides. © 2011 Elsevier B.V. All rights reserved.

  5. The magic circle and the puzzle piece

    OpenAIRE

    Juul, Jesper

    2008-01-01

    In a common description, to play a game is to step inside a concrete or metaphorical magic circle where special rules apply. In video game studies, this description has received an inordinate amount of criticism which the paper argues has two primary sources: 1. a misreading of the basic concept of the magic circle and 2. a somewhat rushed application of traditional theoretical concerns onto games. The paper argues that games studies must move beyond conventional criticisms of binary distinct...

  6. Self-assessed learning style correlates to use of supplemental learning materials in an online course management system.

    Science.gov (United States)

    Halbert, Caitlin; Kriebel, Richard; Cuzzolino, Robert; Coughlin, Patrick; Fresa-Dillon, Kerin

    2011-01-01

    The benefit of online learning materials in medical education is not well defined. The study correlated certain self-identified learning styles with the use of self-selected online learning materials. First-year osteopathic medical students were given access to review and/or summary materials via an online course management system (CMS) while enrolled in a pre-clinical course. At the end of the course, students completed a self-assessment of learning style based on the Index of Learning Styles and a brief survey regarding their usage and perceived advantage of the online learning materials. Students who accessed the online materials earned equivalent grades to those who did not. However, the study found that students who described their learning styles as active, intuitive, global, and/or visual were more likely to use online educational resources than those who identified their learning style as reflective, sensing, sequential, and/or verbal. Identification of a student's learning style can help medical educators direct students to learning resources that best suit their individual needs.

  7. Learning material recommendation based on case-based reasoning similarity scores

    Science.gov (United States)

    Masood, Mona; Mokmin, Nur Azlina Mohamed

    2017-10-01

    A personalized learning material recommendation is important in any Intelligent Tutoring System (ITS). Case-based Reasoning (CBR) is an Artificial Intelligent Algorithm that has been widely used in the development of ITS applications. This study has developed an ITS application that applied the CBR algorithm in the development process. The application has the ability to recommend the most suitable learning material to the specific student based on information in the student profile. In order to test the ability of the application in recommending learning material, two versions of the application were created. The first version displayed the most suitable learning material and the second version displayed the least preferable learning material. The results show the application has successfully assigned the students to the most suitable learning material.

  8. EDUCATEE'S THESAURUS AS AN OBJECT OF MEASURING LEARNED MATERIAL OF THE DISTANCE LEARNING COURSE

    Directory of Open Access Journals (Sweden)

    Alexander Aleksandrovich RYBANOV

    2013-10-01

    Full Text Available Monitoring and control over the process of studying the distance learning course are based on solving the problem of making out an adequate integral mark to the educatee for mastering entire study course, by testing results. It is suggested to use the degree of correspondence between educatee's thesaurus and the study course thesaurus as an integral mark for the degree of mastering the distance learning course. Study course thesaurus is a set of the course objects with relations between them specified. The article considers metrics of the study course thesaurus complexity, made on the basis of the graph theory and the information theory. It is suggested to use the amount of information contained in the study course thesaurus graph as the metrics of the study course thesaurus complexity. Educatee's thesaurus is considered as an object of measuring educational material learned at the semantic level and is assessed on the basis of amount of information contained in its graph, taking into account the factors of learning the thesaurus objects.

  9. Development of Web Based Learning Material in Physics Subject for Kalor and Temperature Material

    Directory of Open Access Journals (Sweden)

    Fatwa Aji Kurniawan

    2015-12-01

    Full Text Available It has been done, the research which aims to develop a web-based teaching materials on the subjects of physics subject with subject mater of temperature and heat. This study using a modified model of the 4D development by eliminating the deployment phase. The validation of product development conducted by validator media experts and experts matter of physics, whereas small-scale trials conducted by physics teacher and 10 students. Validator review results stating that the quality of the product development were included in the category very well with the average percentage rating of 83.93%. The percentage value assigned by media expert by 75% in the good category and the percentage of the value provided by a matter expert 92.85% were in the very good category. Experiments by physics teacher to obtain result of equal to 94.44% were in the very good category and the average percentage of the test results by the students of 90.5% were in the very good category. The characteristics of the products developed include material composition using the curriculum in 2013, there was a recording facility and the results of evaluation of students' activities, there were feedback evaluation results were immediately known by the students and there were some links related to the material either youtube or other learning website.

  10. Stonehenge Landscapes and Stone Circles

    Directory of Open Access Journals (Sweden)

    Mike Pitts

    2002-05-01

    Full Text Available Archaeologists agonise about using the experience of people living in the present to help them think about people's lives in the past. Beneath the rhetoric, however, lies the simple fact that if you study the work of anthropologists, you are confronted with real individuals and communities. The practise of learning from such communities can be particularly liberating if you mix with them yourself, as I learnt when writing a book about Stonehenge (Pitts 2001.

  11. Study Circles as a Method of Informing the Adult Population on Radioactivity

    International Nuclear Information System (INIS)

    Kralj, M.

    2002-01-01

    Public acceptance of the radioactive waste disposal facilities is difficult to achieve. Analysis of the reasons that underlie public rejection of radioactive waste disposal facilities shows that people are not adequately informed about the proposal. They also have a lot of prejudices due to the lack of knowledge and understanding about basic facts on radioactivity and environmental processes. ARAO has proposed that the topic of radioactivity and radioactive waste be included in the program of study circles in order to promote knowledge and understanding of these issues among the adult population in several Slovenian communities. Study circles are self-organized adult learning groups in the local community environment. Two study circles were initially proposed: one in Krsko, the community with a nuclear facility, and one in Radovljica, a community without a nuclear facility. Because of troubles with the unexpected politicization of nuclear issues, the study circle in Krsko was postponed to the later term, so that only the study circle in the community without the nuclear installation was active. The members were found by personal invitations. They worked on different issues dealing with radiation, mainly with the application of radiation and radioactive substances in medicine. Through the study circle activities the interest in radiation issues increased. The members reported that they disseminated their interest and acquired knowledge to their family members and friends. Our experience shows that self-learning in small groups, promoting discussions and the confrontation of different opinions, results in an increase in objective knowledge. Therefore, study circles can provide a good basis for confidence building in the nuclear technology.(author)

  12. Learning curve tool applications in DOE materials management activities

    International Nuclear Information System (INIS)

    Lipinski, A.

    1994-01-01

    This paper will examine the application of learning curve theory, an economic theory that quantifies cost savings over time in a labor intensive process. Learning curve theory has been traditionally applied to a production process. This paper examines the application of learning curve theory in cost estimating of waste characterization in storage at a DOE facility

  13. Packing circles and spheres on surfaces

    KAUST Repository

    Schiftner, Alexander; Hö binger, Mathias; Wallner, Johannes; Pottmann, Helmut

    2009-01-01

    Inspired by freeform designs in architecture which involve circles and spheres, we introduce a new kind of triangle mesh whose faces' incircles form a packing. As it turns out, such meshes have a rich geometry and allow us to cover surfaces with circle patterns, sphere packings, approximate circle packings, hexagonal meshes which carry a torsion-free support structure, hybrid tri-hex meshes, and others. We show how triangle meshes can be optimized so as to have the incircle packing property. We explain their relation to conformal geometry and implications on solvability of optimization. The examples we give confirm that this kind of meshes is a rich source of geometric structures relevant to architectural geometry. © 2009 ACM.

  14. Shock circle model for ejector performance evaluation

    International Nuclear Information System (INIS)

    Zhu, Yinhai; Cai, Wenjian; Wen, Changyun; Li, Yanzhong

    2007-01-01

    In this paper, a novel shock circle model for the prediction of ejector performance at the critical mode operation is proposed. By introducing the 'shock circle' at the entrance of the constant area chamber, a 2D exponential expression for velocity distribution is adopted to approximate the viscosity flow near the ejector inner wall. The advantage of the 'shock circle' analysis is that the calculation of ejector performance is independent of the flows in the constant area chamber and diffuser. Consequently, the calculation is even simpler than many 1D modeling methods and can predict the performance of critical mode operation ejectors much more accurately. The effectiveness of the method is validated by two experimental results reported earlier. The proposed modeling method using two coefficients is shown to produce entrainment ratio, efficiency and coefficient of performance (COP) accurately and much closer to experimental results than those of 1D analysis methods

  15. ENTREPRENEURSHIP EDUCATION AND THE ECONOMY VICIOUS CIRCLES

    Directory of Open Access Journals (Sweden)

    MEDAR LUCIAN ION

    2015-06-01

    Full Text Available Education for sustainable development, involves training honest, active, social and creative persons for ensuring the link between environment, society, economy and politics. Trained entrepreneurs in sustainable development, are the engine system which can bring an economic prosperity. Lack of entrepreneurial education in the last 25 years has led accentuated conditions to avoiding economic development in all reference fields where added value can be achieved. Running away from excessive taxation led to the establishment of vicious circles in the economy. Vicious circles of the economy can be found in saving, tax policy, productive investment and the informal economy. Through this study will present the importance of entrepreneurship education in the real economy and some specifications to exit entrepreneurs from vicious circles of the economy.

  16. Packing circles and spheres on surfaces

    KAUST Repository

    Schiftner, Alexander

    2009-12-01

    Inspired by freeform designs in architecture which involve circles and spheres, we introduce a new kind of triangle mesh whose faces\\' incircles form a packing. As it turns out, such meshes have a rich geometry and allow us to cover surfaces with circle patterns, sphere packings, approximate circle packings, hexagonal meshes which carry a torsion-free support structure, hybrid tri-hex meshes, and others. We show how triangle meshes can be optimized so as to have the incircle packing property. We explain their relation to conformal geometry and implications on solvability of optimization. The examples we give confirm that this kind of meshes is a rich source of geometric structures relevant to architectural geometry.

  17. Packing circles and spheres on surfaces

    KAUST Repository

    Schiftner, Alexander

    2009-01-01

    Inspired by freeform designs in architecture which involve circles and spheres, we introduce a new kind of triangle mesh whose faces\\' incircles form a packing. As it turns out, such meshes have a rich geometry and allow us to cover surfaces with circle patterns, sphere packings, approximate circle packings, hexagonal meshes which carry a torsion-free support structure, hybrid tri-hex meshes, and others. We show how triangle meshes can be optimized so as to have the incircle packing property. We explain their relation to conformal geometry and implications on solvability of optimization. The examples we give confirm that this kind of meshes is a rich source of geometric structures relevant to architectural geometry. © 2009 ACM.

  18. Packing circles and spheres on surfaces

    KAUST Repository

    Schiftner, Alexander; Hö binger, Mathias; Wallner, Johannes; Pottmann, Helmut

    2009-01-01

    Inspired by freeform designs in architecture which involve circles and spheres, we introduce a new kind of triangle mesh whose faces' incircles form a packing. As it turns out, such meshes have a rich geometry and allow us to cover surfaces with circle patterns, sphere packings, approximate circle packings, hexagonal meshes which carry a torsion-free support structure, hybrid tri-hex meshes, and others. We show how triangle meshes can be optimized so as to have the incircle packing property. We explain their relation to conformal geometry and implications on solvability of optimization. The examples we give confirm that this kind of meshes is a rich source of geometric structures relevant to architectural geometry.

  19. Development of Problem-Based Learning Oriented Teaching Learning Materials to Facilitate Students’ Mastery of Concept and Critical Thinking Skill

    Science.gov (United States)

    Reza, M.; Ibrahim, M.; Rahayu, Y. S.

    2018-01-01

    This research aims to develop problem-based learning oriented teaching materials to improve students’ mastery of concept and critical thinking skill. Its procedure was divided into two phases; developmental phase and experimental phase. This developmental research used Four-D Model. However, within this research, the process of development would not involve the last stages, which is disseminate. The teaching learning materials which were developed consist of lesson plan, student handbook, student worksheet, achievement test and critical thinking skill test. The experimental phase employs a research design called one group pretest-posttest design. Results show that the validity of the teaching materials which were developed was good and revealed the enhancement of students’ activities with positive response to the teaching learning process. Furthermore, the learning materials improve the students’ mastery of concept and critical thinking skill.

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

    Science.gov (United States)

    Orhun, Emrah

    2004-01-01

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

  1. The influence of student characteristics on the use of adaptive e-learning material

    NARCIS (Netherlands)

    Seters, van J.R.; Ossevoort, M.A.; Tramper, J.; Goedhart, M.J.

    2012-01-01

    Adaptive e-learning materials can help teachers to educate heterogeneous student groups. This study provides empirical data about the way academic students differ in their learning when using adaptive elearning materials. Ninety-four students participated in the study. We determined characteristics

  2. Effective Use of Distance Education Materials for On-Campus Learning.

    Science.gov (United States)

    Roberts, David Woollcombe

    1998-01-01

    This study explores the use of distance study materials for resource-based learning in on-campus education. Describes use of the Jevons/Northcott typology for investigating the pedagogical use of distance learning materials, and discusses results of classroom observation, student diaries, lecturer interviews, and student questionnaires.…

  3. Second Language Experience Facilitates Statistical Learning of Novel Linguistic Materials.

    Science.gov (United States)

    Potter, Christine E; Wang, Tianlin; Saffran, Jenny R

    2017-04-01

    Recent research has begun to explore individual differences in statistical learning, and how those differences may be related to other cognitive abilities, particularly their effects on language learning. In this research, we explored a different type of relationship between language learning and statistical learning: the possibility that learning a new language may also influence statistical learning by changing the regularities to which learners are sensitive. We tested two groups of participants, Mandarin Learners and Naïve Controls, at two time points, 6 months apart. At each time point, participants performed two different statistical learning tasks: an artificial tonal language statistical learning task and a visual statistical learning task. Only the Mandarin-learning group showed significant improvement on the linguistic task, whereas both groups improved equally on the visual task. These results support the view that there are multiple influences on statistical learning. Domain-relevant experiences may affect the regularities that learners can discover when presented with novel stimuli. Copyright © 2016 Cognitive Science Society, Inc.

  4. Talking Circles for Adolescent Girls in an Urban High School: A Restorative Practices Program for Building Friendships and Developing Emotional Literacy Skills

    Science.gov (United States)

    Schumacher, Martha Ann

    2012-01-01

    Restorative Practices and Restorative Justice programs in schools are a new and emerging field. Meeting in Circles to build community, resolve conflict, and learn interactively are core components of these programs. This ethnographic study, which took place February 2010 to December 2011, evaluates 12 small, out-of-classroom Talking Circles for 60…

  5. Circle Justice: A Creative Arts Approach to Conflict Resolution in the Classroom

    Science.gov (United States)

    Gibbons, Karen

    2010-01-01

    This brief report describes a cooperative classroom art therapy intervention in a public elementary school that provided conflict resolution education, social learning, and group cohesion among sixth-grade students. The organizing framework of a "circle justice" group explored the roles of fictional characters in conflict, including…

  6. Cultural Safety Circles and Indigenous Peoples' Perspectives: Inclusive Practices for Participation in Higher Education

    Science.gov (United States)

    Aseron, Johnnie; Greymorning, S. Neyooxet; Miller, Adrian; Wilde, Simon

    2013-01-01

    Indigenous experiences, as found within traditional ways and cultural practices, are an acknowledgement of traditional methods for sharing, learning, and collective knowledge development and maintenance. The application of Cultural Safety Circles can help provide a collective space where definitions for cultural and educational exchange can take…

  7. Engaging Students On-Line:Does Gender Matter in Adoption of Learning Material Design?

    Directory of Open Access Journals (Sweden)

    Norziani Dahalan

    2013-12-01

    Full Text Available Education is reforming with the birth of the internet. Learning is not solely based on classroom basis but also through on-line. The revolution of Internet has transformed teaching via face-to-face into virtual teaching. The expansion of teaching deliveries suggests that we need interactive mechanism to accommodate course material for on-line students. However, creating on-line materials requires the conception of on-line instructional design. A suitable online material design will allow learners to engage with learning. Learners will have opportunities to develop their own understanding. In addition, suitable learning material will strengthen learner’s knowledge construction from their short-term memory to long-term memory. The purpose of this paper is to discover the learning material design approach based on gender by evaluating lecturer’s adoption of online material design using Keller’s ARCS model. The sample consisting of 30 lecturers from distance education learning reveals that gender differs in their adoption of learning material design specifically on getting attention of the student. The result also shows that relevance and satisfaction contribute to gender differences in learning material adoption. Limitations of the study and practical implications of these findings discussed.

  8. Quality circles: the nurse executive as mentor.

    Science.gov (United States)

    Flarey, D L

    1991-12-01

    Changes within and around the health care environment are forcing health care executives to reexamine their managerial and leadership styles to confront the resulting turbulence. The nurse executive is charged with the profound responsibility of directing the delivery of nursing care throughout the organization. Care delivered today must be of high quality. Declining financial resources as well as personnel shortages cause the executive to be an effective innovator in meeting the increasing demands. Quality circles offer the nurse executive an avenue of recourse. Circles have been effectively implemented in the health care setting, as has been consistently documented over time. By way of a participative management approach, quality circles may lead to increased employee morale and productivity, cost savings, and decreased employee turnover rates, as well as realization of socialization and self-actualization needs. A most effective approach to their introduction would be implementation at the first-line manager level. This promotes an acceptance of the concept at the management level as well as a training course for managers to implement the process at the unit level. The nurse executive facilitates the process at the first-line manager level. This facilitation will cause a positive outcome to diffuse throughout the entire organization. Quality circles offer the nurse executive the opportunity to challenge the existing environmental turmoil and effect a positive and lasting change.

  9. Waring's Problem and the Circle Method

    Indian Academy of Sciences (India)

    other interests include classical music and mountaineering. the problems they worked on. Their proof of a slightly. Keywords weaker form of Ramanujan's original formula was pub-. Waring's problem, circle method, ... arc is fairly simple while it is the minor arc estimation that accounts for the 'major' amount of work involved!

  10. Everything within a Circle Is One Thing

    Centers for Disease Control (CDC) Podcasts

    2017-12-19

    Byron Breedlove, EID managing editor, discuses and reads his December 2017 cover essay, Everything within a Circle is One Thing.  Created: 12/19/2017 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 12/19/2017.

  11. The Prague Linguistic Circle and Dialectics

    Czech Academy of Sciences Publication Activity Database

    Sládek, Ondřej

    -, č. 19 (2017), s. 352-357 E-ISSN 2037-2426 Institutional support: RVO:68378068 Keywords : The Prague Linguistic Circle * Jan Mukařovský * Structuralism * Structural Poetics * Dialectics Subject RIV: AJ - Letters, Mass-media, Audiovision OBOR OECD: Specific literatures

  12. Dynamics and bifurcations of random circle diffeomorphisms

    NARCIS (Netherlands)

    Zmarrou, H.; Homburg, A.J.

    2008-01-01

    We discuss iterates of random circle diffeomorphisms with identically distributed noise, where the noise is bounded and absolutely continuous. Using arguments of B. Deroin, V.A. Kleptsyn and A. Navas, we provide precise conditions under which random attracting fixed points or random attracting

  13. On circle map coupled map lattice

    CERN Document Server

    Ahmed, E

    2002-01-01

    Circle map in one and two dimensions is studied. Both its stability, synchronization using bounded control and persistence is discussed. This work is expected to be applicable in ecology where spatial effects are known to be important. Also it will be relevant to systems where delay effects are not negligible.

  14. The development of learning material using learning goal orientation approach in digital electronics

    Science.gov (United States)

    Puspitaningayu, P.; Anifah, L.; Kholis, N.

    2018-01-01

    Mastery of digital electronics principles is essential for future engineers in the digital era. This article describes the use of simulations in an undergraduate electrical engineering course to promote the adoption of a learning-goal orientation. This study used experimental method. This was done by providing students with a simulation environment which students freely use to experiment with various circuit models. Students were then invited to reflect on how the simulation results compare with results from lab experiments. The module got 82% of positive rating from 28 students and all of them passed in the examination with 81.8 as the average score. Those majority students were motivated by the combination of two learning goals written in the module. Moreover, they also gain the ability to design more complex systems because of their combined experience. Additionally, the module also has been validated and got 83% of reliability. The final product of this research hereafter can be recommended to be used as teaching material.

  15. Report and Recommendations on Multimedia Materials for Teaching and Learning Quantum Physics

    International Nuclear Information System (INIS)

    Mason, B.; Debowska, E.; Arpornthip, T.

    2015-01-01

    An international collaboration of physicists, affiliated with Multimedia Physics for Teaching and Learning (MPTL) and MERLOT, performed a survey and review of multimedia-based learning materials for quantum physics and quantum mechanics. The review process was based on more than a decade of experience with similar topical learning material reviews. A total of approximately 250 items were considered for review and eight were recommended by the reviewers. These are described in this report. Observations about quantum learning resources and multimedia tools are included.

  16. The newest miracle drug: quality circles in hospitals.

    Science.gov (United States)

    McKinney, M M

    1984-01-01

    In recent years, a number of hospitals throughout the United States have been exploring the use of Japanese-style quality circles to reduce their operating expenses, improve productivity, and enhance the quality of work life for hospital employees. This article examines the organizational climate necessary for quality circles, methods used to implement quality circles, and management's role in guiding and responding to circle activities. Ideas for building and maintaining staff support are presented along with a cost/benefit analysis of quality circle programs. The author concludes that quality circles are most successful in hospitals where they are part of a larger organizational development effort. When administrators believe in their employees' ability to contribute to the institution and are willing to invest necessary time and resources in employee education and the measurement of quality circle achievements, quality circles can produce creative solutions to perplexing institutional problems.

  17. Personalized Recommendation of Learning Material Using Sequential Pattern Mining and Attribute Based Collaborative Filtering

    Science.gov (United States)

    Salehi, Mojtaba; Nakhai Kamalabadi, Isa; Ghaznavi Ghoushchi, Mohammad Bagher

    2014-01-01

    Material recommender system is a significant part of e-learning systems for personalization and recommendation of appropriate materials to learners. However, in the existing recommendation algorithms, dynamic interests and multi-preference of learners and multidimensional-attribute of materials are not fully considered simultaneously. Moreover,…

  18. Housing Quality and Access to Material and Learning Resources within the Home Environment in Developing Countries

    Science.gov (United States)

    Bradley, Robert H.; Putnick, Diane L.

    2012-01-01

    This study examined home environment conditions (housing quality, material resources, formal and informal learning materials) and their relations with the Human Development Index (HDI) in 28 developing countries. Home environment conditions in these countries varied widely. The quality of housing and availability of material resources at home were…

  19. Special nuclear materials cutoff exercise: Issues and lessons learned. Volume 3

    Energy Technology Data Exchange (ETDEWEB)

    Libby, R.A.; Segal, J.E.; Stanbro, W.D.; Davis, C.

    1995-08-01

    This document is appendices D-J for the Special Nuclear Materials Cutoff Exercise: Issues and Lessons Learned. Included are discussions of the US IAEA Treaty, safeguard regulations for nuclear materials, issue sheets for the PUREX process, and the LANL follow up activity for reprocessing nuclear materials.

  20. Deployment of Mobile Learning Course Materials to Android Powered Mobile Devices

    Science.gov (United States)

    Chao, Lee

    2012-01-01

    The objective of this article is to facilitate mobile teaching and learning by providing an alternative course material deployment method. This article suggests a course material deployment platform for small universities or individual instructors. Different from traditional course material deployment methods, the method discussed deploys course…

  1. Special nuclear materials cutoff exercise: Issues and lessons learned. Volume 3

    International Nuclear Information System (INIS)

    Libby, R.A.; Segal, J.E.; Stanbro, W.D.; Davis, C.

    1995-08-01

    This document is appendices D-J for the Special Nuclear Materials Cutoff Exercise: Issues and Lessons Learned. Included are discussions of the US IAEA Treaty, safeguard regulations for nuclear materials, issue sheets for the PUREX process, and the LANL follow up activity for reprocessing nuclear materials

  2. Locating a circle on the plane using the minimax criterion

    DEFF Research Database (Denmark)

    Brimberg, Jack; Juel, Henrik; Schoebel, Anita

    2006-01-01

    We consider the problem of locating a circle with respect to existing facilities on the plane, such that the largest weighted distance between the circle and the facilities is minimized. The problem properties are analyzed, and a solution procedure proposed.......We consider the problem of locating a circle with respect to existing facilities on the plane, such that the largest weighted distance between the circle and the facilities is minimized. The problem properties are analyzed, and a solution procedure proposed....

  3. Yoctomole electrochemical genosensing of Ebola virus cDNA by rolling circle and circle to circle amplification.

    Science.gov (United States)

    Carinelli, S; Kühnemund, M; Nilsson, M; Pividori, M I

    2017-07-15

    This work addresses the design of an Ebola diagnostic test involving a simple, rapid, specific and highly sensitive procedure based on isothermal amplification on magnetic particles with electrochemical readout. Ebola padlock probes were designed to detect a specific L-gene sequence present in the five most common Ebola species. Ebola cDNA was amplified by rolling circle amplification (RCA) on magnetic particles. Further re-amplification was performed by circle-to-circle amplification (C2CA) and the products were detected in a double-tagging approach using a biotinylated capture probe for immobilization on magnetic particles and a readout probe for electrochemical detection by square-wave voltammetry on commercial screen-printed electrodes. The electrochemical genosensor was able to detect as low as 200 ymol, corresponding to 120 cDNA molecules of L-gene Ebola virus with a limit of detection of 33 cDNA molecules. The isothermal double-amplification procedure by C2CA combined with the electrochemical readout and the magnetic actuation enables the high sensitivity, resulting in a rapid, inexpensive, robust and user-friendly sensing strategy that offers a promising approach for the primary care in low resource settings, especially in less developed countries. Copyright © 2016 Elsevier B.V. All rights reserved.

  4. The Acoustic Reality of the Kachruvian Circles: A Rhythmic Perspective

    Science.gov (United States)

    Low, Ee Ling

    2010-01-01

    This paper investigates whether the rhythmic properties of varieties of English found in each of the concentric circles of Kachru's model can, in any way, be elucidated by the "Three Circles" model. A measurement and comparison of the rhythm of three varieties of English: British English (from the Inner Circle), Singapore English (from…

  5. The "Us" in Discuss: Grouping in Literature Circles

    Science.gov (United States)

    Batchelor, Katherine

    2012-01-01

    This article describes one middle school teacher's use of literature circles using heterogeneous grouping. It begins with a brief rationale for using literature circles in the language arts classroom. Next, it describes techniques to form literature circles. Then, it shares how to build and establish a supportive environment within each group. It…

  6. Forming Circle Formations of Anonymous Mobile Agents With Order Preservation

    NARCIS (Netherlands)

    Wang, Chen; Xie, Guangming; Cao, Ming

    2013-01-01

    We propose distributed control laws for a group of anonymous mobile agents to form desired circle formations when the agents move in the one-dimensional space of a circle. The agents are modeled by kinematic points. They share the common knowledge of the orientation of the circle, but are oblivious

  7. DEVELOPING GUIDED DISCOVERY LEARNING MATERIALS USING MATHEMATICS MOBILE LEARNING APPLICATION AS AN ALTERNATIVE MEDIA FOR THE STUDENTS CALCULUS II

    Directory of Open Access Journals (Sweden)

    Sunismi .

    2015-12-01

    Full Text Available Abstract: The development research aims to develop guided-discovery learning materials of Calculus II by implementing Mathematics Mobile Learning (MML. The products to develop are MML media of Calculus II using guided discovery model for students and a guide book for lecturers. The study employed used 4-D development model consisting of define, design, develop, and disseminate. The draft of the learning materials was validated by experts and tried-out to a group of students. The data were analyzed qualitatively and quantitatively by using a descriptive technique and t-test. The findings of the research were appropriate to be used ad teaching media for the students. The students responded positively that the MML media of Calculus II using the guided-discovery model was interestingly structured, easily operated through handphones (all JAVA, android, and blackberry-based handphones to be used as their learning guide anytime. The result of the field testing showed that the guided-discovery learning materials of Calculus II using the Mathematics Mobile Learning (MML application was effective to adopt in learning Calculus II. Keywords: learning materials, guided-discovery, mathematics mobile learning (MML, calculus II PENGEMBANGAN BAHAN AJAR MODEL GUIDED DISCOVERY DENGAN APLIKASI MATHEMATICS MOBILE LEARNING SEBAGAI ALTERNATIF MEDIA PEMBELAJARAN MAHASISWA MATAKULIAH KALKULUS II Abstrak: Penelitian pengembangan ini bertujuan untuk mengembangkan bahan ajar matakuliah Kalkulus II model guided discovery dengan aplikasi Mathematics Mobile Learning (MML. Produk yang dikembangkan berupa media MML Kalkulus II dengan model guided discovery untuk mahasiswa dan buku panduan dosen. Model pengembangan menggunakan 4-D yang meliputi tahap define, design, develop, dan dissemination. Draf bahan ajar divalidasi oleh pakar dan diujicobakan kepada sejumlah mahasiswa. Data dianalisis secara kualitatif dan kuantitatif dengan teknik deskriptif dan uji t. Temuan penelitian

  8. Unconscious learning processes: mental integration of verbal and pictorial instructional materials.

    Science.gov (United States)

    Kuldas, Seffetullah; Ismail, Hairul Nizam; Hashim, Shahabuddin; Bakar, Zainudin Abu

    2013-12-01

    This review aims to provide an insight into human learning processes by examining the role of cognitive and emotional unconscious processing in mentally integrating visual and verbal instructional materials. Reviewed literature shows that conscious mental integration does not happen all the time, nor does it necessarily result in optimal learning. Students of all ages and levels of experience cannot always have conscious awareness, control, and the intention to learn or promptly and continually organize perceptual, cognitive, and emotional processes of learning. This review suggests considering the role of unconscious learning processes to enhance the understanding of how students form or activate mental associations between verbal and pictorial information. The understanding would assist in presenting students with spatially-integrated verbal and pictorial instructional materials as a way of facilitating mental integration and improving teaching and learning performance.

  9. CHARACTERISTICS OF HYDROCARBON EXPLOITATION IN ARCTIC CIRCLE

    Directory of Open Access Journals (Sweden)

    Vanja Lež

    2013-12-01

    Full Text Available The existence of large quantities of hydrocarbons is supposed within the Arctic Circle. Assumed quantities are 25% of the total undiscovered hydrocarbon reserves on Earth, mostly natural gas. Over 500 major and minor gas accumulations within the Arctic Circle were discovered so far, but apart from Snøhvit gas field, there is no commercial exploitation of natural gas from these fields. Arctic gas projects are complicated, technically hard to accomplish, and pose a great threat to the return of investment, safety of people and equipment and for the ecosystem. Russia is a country that is closest to the realization of the Arctic gas projects that are based on the giant gas fields. The most extreme weather conditions in the seas around Greenland are the reason why this Arctic region is the least explored and furthest from the realization of any gas project (the paper is published in Croatian .

  10. PENERAPAN INQUIRY BASED LEARNING UNTUK MENGETAHUI RESPON BELAJAR SISWA PADA MATERI KONSEP DAN PENGELOLAAN KOPERASI

    Directory of Open Access Journals (Sweden)

    Heru Kusmaryono

    2015-03-01

    Full Text Available The objective of the study was to know the students' learning responsestoward Inquiry Based Learning method on the materials of Cooperative Concept andManagement. It was a qualitative descriptive approach and the research subjects were32 students of class X IIS 1 at SMA 1 Bae Kudus. The data were collected byobservation, documentation and interview. The results showed that students gavepositive responses toward the application of Inquiry Based Learning method sincestudents’ responses were very high at 85.51%.

  11. A vicious circle in chronic lymphoedema pathophysiology?

    DEFF Research Database (Denmark)

    Cucchi, F; Rossmeislova, L; Simonsen, L

    2017-01-01

    Chronic lymphoedema is a disease caused by a congenital or acquired damage to the lymphatic system and characterized by complex chains of pathophysiologic events such as lymphatic fluid stasis, chronic inflammation, lymphatic vessels impairment, adipose tissue deposition and fibrosis. These event....... Together, these observations indicate strong reciprocal relationship between lymphatics and adipose tissue and suggest a possible key role of the adipocyte in the pathophysiology of chronic lymphoedema's vicious circle....

  12. Rolling circle amplification of metazoan mitochondrialgenomes

    Energy Technology Data Exchange (ETDEWEB)

    Simison, W. Brian; Lindberg, D.R.; Boore, J.L.

    2005-07-31

    Here we report the successful use of rolling circle amplification (RCA) for the amplification of complete metazoan mt genomes to make a product that is amenable to high-throughput genome sequencing techniques. The benefits of RCA over PCR are many and with further development and refinement of RCA, the sequencing of organellar genomics will require far less time and effort than current long PCR approaches.

  13. To what extent do science ESP learning materials fit the purpose for ...

    African Journals Online (AJOL)

    To what extent do science ESP learning materials fit the purpose for which they have been devised? An evaluation in terms of Cronje's (1993) criteria. ... Journal for Language Teaching. Journal Home · ABOUT THIS JOURNAL · Advanced ...

  14. The development of learning materials based on core model to improve students’ learning outcomes in topic of Chemical Bonding

    Science.gov (United States)

    Avianti, R.; Suyatno; Sugiarto, B.

    2018-04-01

    This study aims to create an appropriate learning material based on CORE (Connecting, Organizing, Reflecting, Extending) model to improve students’ learning achievement in Chemical Bonding Topic. This study used 4-D models as research design and one group pretest-posttest as design of the material treatment. The subject of the study was teaching materials based on CORE model, conducted on 30 students of Science class grade 10. The collecting data process involved some techniques such as validation, observation, test, and questionnaire. The findings were that: (1) all the contents were valid, (2) the practicality and the effectiveness of all the contents were good. The conclusion of this research was that the CORE model is appropriate to improve students’ learning outcomes for studying Chemical Bonding.

  15. Identification of Quality Visual-Based Learning Material for Technology Education

    Science.gov (United States)

    Katsioloudis, Petros

    2010-01-01

    It is widely known that the use of visual technology enhances learning by providing a better understanding of the topic as well as motivating students. If all visual-based learning materials (tables, figures, photos, etc.) were equally effective in facilitating student achievement of all kinds of educational objectives, there would virtually be no…

  16. Development of multimedia learning based inquiry on vibration and wave material

    Science.gov (United States)

    Madeali, H.; Prahani, B. K.

    2018-03-01

    This study aims to develop multimedia learning based inquiry that is interesting, easy to understand by students and streamline the time of teachers in bringing the teaching materials as well as feasible to be used in learning the physics subject matter of vibration and wave. This research is a Research and Development research with reference to ADDIE model that is Analysis, Design, Development, Implementation, and Evaluation. Multimedia based learning inquiry is packaged in hypertext form using Adobe Flash CS6 Software. The inquiry aspect is constructed by showing the animation of the concepts that the student wants to achieve and then followed by questions that will ask the students what is observable. Multimedia learning based inquiry is then validated by 2 learning experts, 3 material experts and 3 media experts and tested on 3 junior high school teachers and 23 students of state junior high school 5 of Kendari. The results of the study include: (1) Validation results by learning experts, material experts and media experts in valid categories; (2) The results of trials by teachers and students fall into the practical category. These results prove that the multimedia learning based inquiry on vibration and waves materials that have been developed feasible use in physics learning by students of junior high school class VIII.

  17. Teacher design knowledge and beliefs for technology enhanced learning materials in early literacy: Four portraits

    NARCIS (Netherlands)

    Boschman, Ferry; McKenney, Susan; Pieters, Jules; Voogt, Joke

    2016-01-01

    Teacher engagement in the design of technology-rich learning material is beneficial to teacher learning and may create a sense of ownership, both of which are conducive to bringing about innovation with technology. During collaborative design, teachers draw on various types of knowledge and

  18. Teacher design knowledge and beliefs for technology enhanced learning materials in early literacy: Four portraits

    NARCIS (Netherlands)

    Boschman, F.; McKenney, S.; Pieters, J.M.; Voogt, J.

    2015-01-01

    Teacher engagement in the design of technology-rich learning material is beneficial to teacher learning and may create a sense of ownership, both of which are conducive to bringing about innovation with technology. During collaborative design, teachers draw on various types of knowledge and beliefs:

  19. Learning Effectiveness and Cognitive Loads in Instructional Materials of Programming Language on Single and Dual Screens

    Science.gov (United States)

    Hsu, Jenq-Muh; Chang, Ting-Wen; Yu, Pao-Ta

    2012-01-01

    The teaching and learning environment in a traditional classroom typically includes a projection screen, a projector, and a computer within a digital interactive table. Instructors may apply multimedia learning materials using various information communication technologies to increase interaction effects. However, a single screen only displays a…

  20. School Learning Materials on Water Problems of New Mexico and the Southwest.

    Science.gov (United States)

    Buethe, Chris; And Others

    Schools typically make no special efforts to prepare students to cope with present and anticipated water problems. Using this as a premise, the objective of this study was to prepare a set of mediated learning packages based upon water problems of New Mexico and the dry regions of the Southwest. These learning materials were prepared and field…

  1. Stone circles: form and soil kinematics.

    Science.gov (United States)

    Hallet, Bernard

    2013-01-01

    Distinct surface patterns are ubiquitous and diverse in soils of polar and alpine regions, where the ground temperature oscillates about 0°C. They constitute some of the most striking examples of clearly visible, abiotic self-organization in nature. This paper outlines the interplay of frost-related physical processes that produce these patterns spontaneously and presents unique data documenting subsurface soil rotational motion and surface displacement spanning 20 years in well-developed circles of soil outlined by gravel ridges. These sorted circles are particularly attractive research targets for a number of reasons that provide focus for this paper: (i) their exceptional geometric regularity captures the attention of any observer; (ii) they are currently forming and evolving, hence the underlying processes can be monitored readily, especially because they are localized near the ground surface on a scale of metres, which facilitates comprehensive characterization; and (iii) a recent, highly successful numerical model of sorted circle development helps to draw attention to particular field observations that can be used to assess the model, its assumptions and parameter choices, and to the considerable potential for synergetic field and modelling studies.

  2. The development of thematic materials using project based learning for elementary school

    Science.gov (United States)

    Yuliana, M.; Wiryawan, S. A.; Riyadi

    2018-05-01

    Teaching materials is one of the important factors in supporting on learning process. This paper discussed about developing thematic materials using project based learning. Thematic materials are designed to make students to be active, creative, cooperative, easy in thinking to solve the problem. The purpose of the research was to develop thematic material using project based learning which used valid variables. The method of research which used in this research was four stages of research and development proposed by Thiagarajan consisting of 4 stages, namely: (1) definition stage, (2) design stage, (3) development stage, and (4) stage of dissemination. The first stage was research and information collection, it was in form of need analysis with questionnaire, observation, interview, and document analysis. Design stage was based on the competencies and indicator. The third was development stage, this stage was used to product validation from expert. The validity of research development involved media validator, material validator, and linguistic validator. The result from the validation of thematic material by expert showed that the overall result had a very good rating which ranged from 1 to 5 likert scale, media validation showed a mean score 4,83, the material validation showed mean score 4,68, and the mean of linguistic validation was e 4,74. It showed that the thematic material using project based learning was valid and feasible to be implemented in the context thematic learning.

  3. Learning about materials science and technology by deconstructing modern products

    DEFF Research Database (Denmark)

    Horsewell, Andy

    Get the attention of young engineering students, interest and inspire them. Encourage them to think about materials science and technology by looking at the consumer products and gadgets that interest them. Analyse what modern products are constructed of, and how and why the materials...... teaching encourages and demands constant modernisation of the course and the materials being presented. A consideration of material and process selection for components in a modern product can be a dynamic starting point for a course on materials science and engineering; providing inspiration and showing...... and the processes have been chosen in their manufacture i.e. deconstruct modern products. Suitable items can easily be found in personal communication and entertainment, including all manner of sports goods. Further, the current pace of materials product development ensures that using these objects to focus...

  4. Quality Control Circles: A Vehicle for Just-in-Time Implementation.

    Science.gov (United States)

    Sepehri, Mehran

    1985-01-01

    Explains just-in-time (JIT) material flow and production, a method of production designed to eliminate waste. Discusses why quality control circles work so well with a JIT system, and describes how several companies have made JIT work for them. (CT)

  5. Let's start learning radiation. Supplementary material on radiation for secondary school students

    International Nuclear Information System (INIS)

    Watanabe, Yoko; Yamashita, Kiyonobu; Shimada, Mayuka

    2015-01-01

    The Japan Atomic Energy Agency has been organizing training programs for engineers in Asian countries introducing nuclear technology. In 2012, we launched a course ‘Basic Radiation Knowledge for School Education’ as we thought disseminating accurate knowledge on radiation to school students and public would also be important in those countries after Fukushima-Daiichi nuclear power station accident. Ministry of Education, Culture, Sports, Science and Technology - Japan published supplemental learning material on radiation for secondary school students and teachers in Japanese in October 2011. Since the learning material is designed to give a clear explanation of radiation and covers various topics, we thought it would also be beneficial for young students in the world if a learning material in English was available. Therefore, we made a new learning material in English using the topics covered in supplemental learning material on radiation in Japanese as a reference. This learning material has been favourably evaluated by the International Atomic Energy Agency (IAEA) and will be widely used as a practical educational tool in many countries around the world through the IAEA. (author)

  6. Universal Design for Learning: Scanning for Alignment in K-12 Blended and Fully Online Learning Materials

    Science.gov (United States)

    Basham, James D.; Smith, Sean J.; Satter, Allyson L.

    2016-01-01

    In the process of evaluating online learning products for accessibility, researchers in the Center on Online Learning and Students with Disabilities concluded that most often consultation guides and assessment tools were useful in determining sensory accessibility but did not extend to critical aspects of learning within the Universal Design for…

  7. Stitching Circuits: Learning about Circuitry through E-Textile Materials

    Science.gov (United States)

    Peppler, Kylie; Glosson, Diane

    2013-01-01

    Central to our understanding of learning is the relationship between various tools and technologies and the structuring of disciplinary subject matter. One of the staples of early science education curriculum is the use of electrical circuit toolkits to engage students in broader discussions of energy. Traditionally, these concepts are introduced…

  8. Physical cognition: birds learn the structural efficacy of nest material.

    Science.gov (United States)

    Bailey, Ida E; Morgan, Kate V; Bertin, Marion; Meddle, Simone L; Healy, Susan D

    2014-06-07

    It is generally assumed that birds' choice of structurally suitable materials for nest building is genetically predetermined. Here, we tested that assumption by investigating whether experience affected male zebra finches' (Taeniopygia guttata) choice of nest material. After a short period of building with relatively flexible string, birds preferred to build with stiffer string while those that had experienced a stiffer string were indifferent to string type. After building a complete nest with either string type, however, all birds increased their preference for stiff string. The stiffer string appeared to be the more effective building material as birds required fewer pieces of stiffer than flexible string to build a roofed nest. For birds that raised chicks successfully, there was no association between the material they used to build their nest and the type they subsequently preferred. Birds' material preference reflected neither the preference of their father nor of their siblings but juvenile experience of either string type increased their preference for stiffer string. Our results represent two important advances: (i) birds choose nest material based on the structural properties of the material; (ii) nest material preference is not entirely genetically predetermined as both the type and amount of experience influences birds' choices.

  9. TEACHING LEARNING MATERIALS: THE REVIEWS COURSEBOOKS, GAMES, WORKSHEETS, AUDIO VIDEO FILES

    Directory of Open Access Journals (Sweden)

    Anak Agung Sagung Shanti Sari Dewi

    2016-11-01

    Full Text Available Teaching learning materials (TLM has been widely recognised as one of most important components in language teaching to support the success of language learning. TLM is essential for teachers in planning their lessons, assisting them in their professional duty, and use them as rosources to describe instructions. This writing reviews 10 (ten teaching learning materials in the form of cousebooks, games, worksheets, and audio video files. The materials were chosen randomly and were analysed qualitatively. The discussion of the materials is done individually by presenting their target learners, how they are applied by teachers and students, the aims of the use of the materials, and the role of teachers and learners in different kind of TLM.

  10. KEEFEKTIFAN EXPERIENTIAL LEARNING PEMBELAJARAN MATEMATIKA MTs MATERI BANGUN RUANG SISI DATAR

    Directory of Open Access Journals (Sweden)

    Dyahsih Alin Sholihah

    2015-11-01

    Full Text Available Penelitian ini bertujuan untuk menentukan keefektifan penerapan model experiential learning dan menentukan mana yang lebih efektif antara model experiential learning dan pembelajaran konvensionalpada pembelajaran matematika materi bangun ruang sisi datar ditinjau dari prestasi belajar dan apresiasi siswa terhadap matematika. Jenis penelitian ini adalah quasi-experiment dengan pretest-posttest nonequivalent comparison-group design. Populasi dan sampelnya adalah siswa Kelas VIII MTs Negeri Sidoharjo dan siswa Kelas VIIIA dan VIIIB. Untuk menguji keefektifan pembelajaran metamatika dengan model experiential learning dan konvensional digunakan analisis dengan uji proporsi. Untuk mengetahui perbedaan keefektifan pembelajaran matematika dengan model experiential learning dan konvensional, data dianalisis dengan menggunakan uji T2 Hotelling’s, dan uji t dengan kriteria Bonferroni untuk menentukan model pembelajaran manakah yang lebih efektif. Hasil penelitian menunjukkan bahwa penerapan model experiential learning lebih efektif dari pembelajaran konvensional pada pembelajaran matematika materi bangun ruang sisi datar ditinjau dari prestasi belajar dan apresiasi siswa terhadap matematika. Kata Kunci: model experiential learning, konvensional, prestasi belajar, dan apresiasi matematika.   THE EFFECTIVENESS OF EXPERIENTIAL LEARNING IN MATHEMATICS LEARNING  IN SUBJECT MATTER OF FLAT SIDE CONSTRUCT Abstract This study aims to determine the effectiveness of the experiential learning model and to determine which one is more effective between the experiential learning model and the conventional one in mathematics learning in subject matter of flat side construct viewed from the learning achieve-ment and students’ appreciationof mathematics. This study was a quasi-experimental study using the pretest-posttest nonequivalent comparison-group design. The research population comprised all Year VIII students, consisting of 4 classes of MTs Negeri Sidoharjo

  11. Report and recommendations on multimedia materials for teaching and learning electricity and magnetism

    International Nuclear Information System (INIS)

    Debowska, E; Greczyło, T; Girwidz, R; Kohnle, A; Mason, B; Mathelitsch, L; Melder, T; Michelini, M; Ruddock, I; Silva, J

    2013-01-01

    This paper presents the results of a peer review of multimedia materials for teaching and learning electricity and magnetism prepared as a part of the annual activities undertaken by an international group of scientists associated with Multimedia Physics in Teaching and Learning. The work promotes the use of valuable and freely accessible information technology materials for different levels of teaching, mostly higher education. The authors discuss the process of selecting resources and the rubrics used in the rating process. The reviews of high-quality learning resources are presented along with descriptions of valuable didactical features. (letters and comments)

  12. Report and recommendations on multimedia materials for teaching and learning electricity and magnetism

    Science.gov (United States)

    Dȩbowska, E.; Girwidz, R.; Greczyło, T.; Kohnle, A.; Mason, B.; Mathelitsch, L.; Melder, T.; Michelini, M.; Ruddock, I.; Silva, J.

    2013-05-01

    This paper presents the results of a peer review of multimedia materials for teaching and learning electricity and magnetism prepared as a part of the annual activities undertaken by an international group of scientists associated with Multimedia Physics in Teaching and Learning. The work promotes the use of valuable and freely accessible information technology materials for different levels of teaching, mostly higher education. The authors discuss the process of selecting resources and the rubrics used in the rating process. The reviews of high-quality learning resources are presented along with descriptions of valuable didactical features.

  13. "Socratic Circles are a Luxury": Exploring the Conceptualization of a Dialogic Tool in Three Science Classrooms

    Science.gov (United States)

    Copelin, Michelle Renee

    Research has shown that dialogic instruction promotes learning in students. Secondary science has traditionally been taught from an authoritative stance, reinforced in recent years by testing policies requiring coverage. Socratic Circles are a framework for student-led dialogic discourse, which have been successfully used in English language arts and social studies classrooms. The purpose of this research was to explore the implementation process of Socratic Circles in secondary science classes where they have been perceived to be more difficult. Focusing on two physical science classes and one chemistry class, this study described the nature and characteristics of Socratic Circles, teachers' dispositions toward dialogic instruction, the nature and characteristics of student discussion, and student motivation. Socratic Circles were found to be a dialogic support that influenced classroom climate, social skills, content connections, and student participation. Teachers experienced conflict between using traditional test driven scripted teaching, and exploring innovation through dialogic instruction. Students experienced opportunities for peer interaction, participation, and deeper discussions in a framework designed to improve dialogic skills. Students in two of the classrooms showed evidence of motivation for engaging in peer-led discussion, and students in one class did not. The class that did not show evidence of motivation had not been given the same scaffolding as the other two classes. Two physical science teachers and one chemistry teacher found that Socratic Circles required more scaffolding than was indicated by their peers in other disciplines such as English and social studies. The teachers felt that student's general lack of background knowledge for any given topic in physical science or chemistry necessitated the building of a knowledge platform before work on a discussion could begin. All three of the teachers indicated that Socratic Circles were a

  14. Work in the classrooms with European perspective: materials and resources for autonomus learning

    Directory of Open Access Journals (Sweden)

    Manuela RAPOSO RIVAS

    2011-04-01

    Full Text Available One of the key principles set forth in the bologna process is to focus teaching on students, by getting involved actively and independently in their learning process and in developing their skills. This requires the use of teaching and learning methods together with materials and resources to motivate and guide them. In this paper, we present three of them, from our experience in adapting the subject of «New Technologies Applied to education» to the ecTs system, which we have found useful for guiding and evaluating the learning process and promote the intended learning. These materials and resources are: «learning guides», the portfolio and the rubric.

  15. Theory and learning protocols for the material tempotron model

    International Nuclear Information System (INIS)

    Baldassi, Carlo; Braunstein, Alfredo; Zecchina, Riccardo

    2013-01-01

    Neural networks are able to extract information from the timing of spikes. Here we provide new results on the behavior of the simplest neuronal model which is able to decode information embedded in temporal spike patterns, the so-called tempotron. Using statistical physics techniques we compute the capacity for the case of sparse, time-discretized input, and ‘material’ discrete synapses, showing that the device saturates the information theoretic bounds with a statistics of output spikes that is consistent with the statistics of the inputs. We also derive two simple and highly efficient learning algorithms which are able to learn a number of associations which are close to the theoretical limit. The simplest versions of these algorithms correspond to distributed online protocols of interest for neuromorphic devices, and can be adapted to address the more biologically relevant continuous-time version of the classification problem, hopefully allowing the understanding of some aspects of synaptic plasticity. (paper)

  16. Help! (Not-So-Good Materials for Learning to Read).

    Science.gov (United States)

    Venema, Minke S.

    1995-01-01

    Many primary adult reading materials used in literacy education reinforce the marginalization of the efforts and intelligence of women. Such representations undermine both female learners and tutors in a field heavily populated by women. (SK)

  17. The Effectiveness of Guided Inquiry-based Learning Material on Students’ Science Literacy Skills

    Science.gov (United States)

    Aulia, E. V.; Poedjiastoeti, S.; Agustini, R.

    2018-01-01

    The purpose of this research is to describe the effectiveness of guided inquiry-based learning material to improve students’ science literacy skills on solubility and solubility product concepts. This study used Research and Development (R&D) design and was implemented to the 11th graders of Muhammadiyah 4 Senior High School Surabaya in 2016/2017 academic year with one group pre-test and post-test design. The data collection techniques used were validation, observation, test, and questionnaire. The results of this research showed that the students’ science literacy skills are different after implementation of guided inquiry-based learning material. The guided inquiry-based learning material is effective to improve students’ science literacy skills on solubility and solubility product concepts by getting N-gain score with medium and high category. This improvement caused by the developed learning material such as lesson plan, student worksheet, and science literacy skill tests were categorized as valid and very valid. In addition, each of the learning phases in lesson plan has been well implemented. Therefore, it can be concluded that the guided inquiry-based learning material are effective to improve students’ science literacy skills on solubility and solubility product concepts in senior high school.

  18. The learning continuum based on student's level of competence and specific pedagogical learning material on physiological aspects from teachers's opinions

    Science.gov (United States)

    Hadi, Ria Fitriyani; Subali, Bambang

    2017-08-01

    The scope of learning continuum at the conceptual knowledge is formulated based on the student's level of competence and specific pedagogical learning material. The purpose of this study is to develop a learning continuum of specific pedagogical material aspects of physiology targeted for students in primary and secondary education. This research was conducted in Province of Yogyakarta Special Region from October 2016 to January 2017. The method used in this study was survey method. The data were collected using questionnaire that had been validated from the aspects of construct validity and experts judgements. Respondents in this study consist of 281 Science/Biology teachers at Public Junior and Senior High Schools in the Province of Yogyakarta Special Region which spread in Yogyakarta city and 4 regencies namely Sleman, Bantul, Kulonprogo, and Gunungkidul. The data were taken using a census. Data were analyzed using a descriptive analysis technique. The results show the learning continuum of physiology based on teachers's opinion from grade VII, VIII, and IX are taught in grade VII, VIII, IX and X on level of C2 (understanding) and the learning continuum of physiology based on teachers's opinion from grade X, XI and XII are taught in grade X and XI on level of C2 (understanding), C3 (applying), and C4 (analyzing) based on teachers's opinions. The conclusion is that many teachers refer to the existing curriculum rather than their own original idea for developing learning continuum.

  19. Student Reactions to Learning Theory Based Curriculum Materials in Linear Algebra--A Survey Analysis

    Science.gov (United States)

    Cooley, Laurel; Vidakovic, Draga; Martin, William O.; Dexter, Scott; Suzuki, Jeff

    2016-01-01

    In this report we examine students' perceptions of the implementation of carefully designed curriculum materials (called modules) in linear algebra courses at three different universities. The curricular materials were produced collaboratively by STEM and mathematics education faculty as members of a professional learning community (PLC) over…

  20. Effect of Instructional vs. Authentic Video Materials on Introvert and Extrovert Iranian EFL Learners' Vocabulary Learning

    Science.gov (United States)

    Isazadeh, Parya; Makui, Selma Mohammad Zadeh; Ansarian, Loghman

    2016-01-01

    The study delved into the effect of instructional video materials vs. authentic video materials on vocabulary learning of extrovert and introvert Iranian EFL learners. To this end, Nelson proficiency test was administered to one hundred eighty (n = 180) language learners. Considering 1 standard deviation above and below the mean score, one hundred…

  1. Inventory of Innovative Learning Materials in Marine Science and Technology. UNESCO Reports in Marine Science 60.

    Science.gov (United States)

    Richards, Adrian F.; Richards, Efrosine A.

    The Inventory of Innovative Learning Materials in Marine Science and Technology includes 32 computer-, 148 video-, 16 film-, and 11 CD-ROM-based entries. They concern materials in biosciences (67), chemistry (5), geosciences (16), physics (23), technology (76) and other (20). This first, initial compilations is conceived as the basis for more…

  2. 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

  3. Embracing Service-Learning Opportunities: Student Perceptions of Service-Learning as an Aid to Effectively Learn Course Material

    Science.gov (United States)

    Currie-Mueller, Jenna L.; Littlefield, Robert S.

    2018-01-01

    Educators are aware of the benefits of service learning such as retention or application of course concepts. Students enrolled in courses with a service learning assignment may not be aware of the benefits or may not view the assignment as beneficiary. This study examined student perceptions of service learning to determine if students'…

  4. E-learning Materials Development: Applying and Implementing Software Reuse Principles and Granularity Levels in the Small

    OpenAIRE

    Nabil Arman

    2010-01-01

    E-learning materials development is typically acknowledged as an expensive, complicated, and lengthy process, often producing materials that are of low quality and difficult to adaptand maintain. It has always been a challenge to identify proper e-learning materials that can be reused at a reasonable cost and effort. In this paper, software engineering reuse principlesare applied to e-learning materials development process. These principles are then applied and implemented in a prototype that...

  5. MATERIALS AND (LANGUAGE LEARNING ENVIRONMENT BASED ON MONTESSORI CONCEPTS

    Directory of Open Access Journals (Sweden)

    Christina Kristiyani

    2018-04-01

    Full Text Available Montessori Education is widely spread in almost all countries in the world. Even though this school is meant for all kinds of learners including “normal” learners, the Montessori education concepts used in Montessori schools will be very supportive education for children with special needs. Therefore, the schools which adopt Montessori education concepts can facilitate inclusion, especially with the concepts of ‘I can do it myself.’ Inclusive education needs to be carefully prepared and implemented by schools. The movement brings about some challenges for teachers. This paper explores the environment and materials based on Montessori education concepts. The environment and materials are suitable for all types of learners and thus can be an option to be implemented in the inclusive education setting. Teaching materials rooted in Montessori education concepts indeed cater all ages and embrace the needs of all students.

  6. Using Android-Based Educational Game for Learning Colloid Material

    Science.gov (United States)

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

    2017-09-01

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

  7. Circle Maps and C*-algebras

    DEFF Research Database (Denmark)

    Schmidt, Thomas Lundsgaard; Thomsen, Klaus

    2015-01-01

    We consider a construction of $C^*$-algebras from continuous piecewise monotone maps on the circle which generalizes the crossed product construction for homeomorphisms and more generally the construction of Renault, Deaconu and Anantharaman-Delaroche for local homeomorphisms. Assuming that the map...... is surjective and not locally injective we give necessary and sufficient conditions for the simplicity of the $C^*$-algebra and show that it is then a Kirchberg algebra. We provide tools for the calculation of the K-theory groups and turn them into an algorithmic method for Markov maps....

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

    Science.gov (United States)

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

    2009-01-01

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

  9. Pronunciation Issues and Varieties of English from an EIL Perspective: A Survey of Outer and Expanding Circle Learners’ Beliefs

    Directory of Open Access Journals (Sweden)

    Abbas Monfared

    2014-11-01

    Full Text Available In a globalized era where English keeps the position of an international language, learnt and spoken by lots of people from diverse linguistic, cultural and national backgrounds, there is a need for a new perspective towards English as an international language which can bridge notions and cultures. The appearance of varieties of English is the consequence of the global dissemination of English. Based on a combination of quantitative and qualitative data using a semi-structured questionnaire (see Appendix A administered to 60 Iranian learners from expanding circle and 60 Indian learners from outer circle, this study surveyed the developing picture of EIL pronunciation and evaluation of different varieties of English from the perspective of learners from two circles which include the most users of English in the globalized world. The results of the questionnaires supplemented by interviews with leaners from expanding and outer circles revealed that expanding-circle learners like more to have a native-like identity with their preference towards nativism. The implications on the findings on the spread of native speaker norms and the status of ELF and its reflections in learning and teaching in expanding and outer circle countries are discussed.

  10. EXTENSIVE LISTENING: LET STUDENTS EXPERIENCE LEARNING BY OPTIMIZING THE USE OF AUTHENTIC MATERIALS

    Directory of Open Access Journals (Sweden)

    Yulia Hapsari

    2014-10-01

    Full Text Available In a country like Indonesia, one of challenges in learning English as a foreign language is a lack of exposure of English in its authentic sense. The use of authentic materials seems to be an option to cope with this situation. One of the ways to optimize the use of the authentic materials to trigger students to experience learning and to enhance their active involvement in the learning process is by using it in extensive listening activities. Through extensive listening by using authentic materials, students are exposed to real native speech in meaningful language use. As the result, difficulties in listening gradually disappear.  In order to put the idea into practice, the first thing to do is to set objectives of each meeting based on core vocabulary and grammar that are suitable for the learners using comprehensible input principle as the basic consideration. Second, selecting authentic materials that suit the objectives and that give exposure to formulaic language and meaningful language use. Then, preparing activities in which the instruction is reasonable and lead to sufficient practice to develop fluency. Finally, synchronize teaching activities to increase students’ motivation to learn. As a follow up activities, students are informed and eventually involved in the whole process. Thus, students experience learning and actively involved in their learning process.

  11. Training of students’ special endurance in ping pong sport circles

    Directory of Open Access Journals (Sweden)

    V.M. Grinko

    2017-04-01

    Full Text Available Urpose: to test experimentally influence of aerobic trainings (cross country training and basic aerobic on students’ special endurance in sport oriented groups (sport circles, ping pong. Material: 106 first year students (n=53 - control group and n=53 - experimental participated in experiment. For determination of temporal series’ trends R-S analysis was used. Prognostication of mistakes’ quantity per one set was fulfilled with the help of exponential smoothing method. Results: it was shown that exponential smoothing method permits to prognosticate by one set ahead with rather high accuracy. As initial predictor we found mean quantity of mistakes in all sets. It permits to average all internal and external factors, which influence on the next predicting indicators. Such approach increases confidence of mistakes’ calculation in prognostication. Criteria of prognostication methodic for possible indicators’ values were also determined. Conclusions: the recommended time distribution in program is as follows: ping pong - 75%; cross country training and basic aerobic - 25%.

  12. From Social Movement Learning to Sociomaterial Movement Learning? Addressing the Possibilities and Limits of New Materialism

    Science.gov (United States)

    McGregor, Callum

    2014-01-01

    In recent years academic interest in social movement learning (SML) has flourished. "Studies in the Education of Adults" has arguably emerged as the premier international forum for exploring the links between adult learning and movements for progressive change. In parallel to this subfield, yet largely in isolation from it,…

  13. Effect of Instructional vs. Authentic Video Materials on Introvert and Extrovert Iranian EFL Learners' Vocabulary Learning

    Directory of Open Access Journals (Sweden)

    Parya Isazadeh

    2016-10-01

    Full Text Available The study delved into the effect of instructional video materials vs. authentic video materials on vocabulary learning of extrovert and introvert Iranian EFL learners. To this end, Nelson proficiency test was administered to one hundred eighty (n=180 language learners. Considering 1 standard deviation above and below the mean score, one hundred twenty three (n=123 language learners were selected for the study. These participants were distributed into 4 experimental groups (with 25 learners and a control group (with 23 learners. Researcher-made vocabulary pretest and posttest which were designed using the vocabularies from the movies were also administered to the participants. The findings of the study after three weeks of treatment revealed that both authentic video materials and instructional video materials can have positive effect on vocabulary learning of Iranian EFL leaners. This effect, however, is not different among extrovert learners. It was also revealed that introvert EFL learners benefit more from authentic video materials. The findings of the study could be used by material developers or language teachers who may wish to use video materials in their classes. Keywords: Authentic video materials, Instructional video materials, Vocabulary learning, Introversion, Extroversion

  14. Stuff- The Materials that Shape our World - Experimental Learning Opportunities

    Energy Technology Data Exchange (ETDEWEB)

    Rosenstein, Pam

    2012-04-30

    Making Stuff is a four-part series that explores how materials changed history and are shaping the future. To further enhance public engagement in and understanding of materials science, the project convened an extensive network of community coalitions across the country that hosted Making Stuff outreach activities and events, science cafes, and educator workshops in their local areas. Department Of Energy funding enabled us to increase the number of communities formally involved in the project, from 10 to 20 community hubs. Department of Energy funding also made it possible to develop a collection of materials science resources, activities and hands-on demonstrations for use in a variety of formal and informal settings, and Making Stuff activities were presented at science conferences and festivals around the country. The design, printing and national dissemination of the Making Stuff afterschool activity guide were also developed with DOE funding, as well as professional webinar trainings for scientists and educators to help facilitate many of the community activities and other online and print materials. Thanks to additional funding from the Department of Energy, we were able to expand the reach and scope of the project's outreach plan, specifically in the areas of: 1) content development, 2) training/professional development, 3) educational activities and 4) community partnerships. This report documents how the following DOE project goals were met: (1) Train scientists and provide teachers and informal educators with resources to engage youth with age appropriate information about materials science; (2) Provide activities and resources to five selected communities with ties to DOE researchers; (3) Increase interest in STEM.

  15. Circle of willis and its variations; morphometric study in adult human cadavers

    Directory of Open Access Journals (Sweden)

    Raghavendra, Shirol VS, Daksha Dixit, Anil Kumar Reddy Y, Desai SP

    2014-04-01

    Full Text Available Background and Objectives: Circle of Willis plays a vital role in collateral circulation and redistribution of blood to all areas of the brain. Variation in circle of Willis is known to cause grave disorders like cerebrovascular disorders, subarachnoid haemorrhage, cerebral aneurysm and schizophrenia. The objectives of the present study are to study the formation and branching pattern of circle of Willis and also to study the distribution of variations. MATERIALS & Methods: The study was conducted on 50 adult brain specimens. Each brain was removed in one piece by dissection and the circle of Willis was observed for its formation, pattern and variations. Results: Among the 50 specimens studied, 28 cases (56% had a normal pattern of circle of Willis and variations were observed in the remaining 22 cases (44%. More number of variations was observed on the right side than on the left side. The most common variation observed was hypoplastic posterior communicating artery (7 cases, 31.8%. Posterior communicating artery was found to be the most variable vessel while middle cerebral artery was the least variable vessel. Interpretation and Conclusion: The results with respect to the circle of Willis and all its component arteries were consistent with the results in the available literature. The only exception was the increased incidence of absence of both the anterior and posterior communicating arteries. This finding is of clinical significance to neurologists and neurosurgeons in this geographical location of north Karnataka. A higher incidence of variations in the communicating arteries is likely to manifest as a higher incidence in disorders like migraine, schizophrenia and cerebrovascular disorders due to compromised collateral circulation and poor redistribution of blood.

  16. The Effect of Quality Circles on Nurses Job Satisfaction Working Emergency Medical Service

    Directory of Open Access Journals (Sweden)

    Reza Hossein abadi

    2012-12-01

    Full Text Available Introduction: Quality circle are considered an important approach to improving behavior, increasing motivation, and reducing stress. The aim of this study was to determining the effect of training and applying quality control circles on the nurses’ level of occupation satisfaction.Material and Methods: This research is a two-group quasi-experimental study that after selection of two EMS stations, by simple randomization method 25 nurses worked in central station of Hamden emergency medical service were chosen as the quality circle group and 16 nurses of central station of Malayer emergency medical service formed the control group. The tools was used in this research was the occupation satisfaction questionnaire that was made on Herzburg Two factor theory. After training and performing of quality circle in trial group the occupation satisfaction test was carried out on both groups to get the change taken place in their level of job satisfactions. Then statistical analysis was performed using SPSS.Results: The analysis of data showed that before and after intervention there was significant differences in scores of health (P<0.001 and motivation factors (P<0.001 and also in global scores of occupation satisfaction in quality circle group (P<0.001, but there was no significant differences before and after intervention in scores of health (P=0.069 and motivation factors (P=0.094 and also in global scores of occupation satisfaction in control group (P=0.495. After intervention, the analysis of data showed significant differences in scores motivation factors (P=0.001 and global scores of occupation satisfaction (P=0.003 whereas there was no significant differences in scores of health factors between two groups (P=0.089.Conclusion: This study confirmed the effectiveness of training and applying quality circle in improving EMS nurses job satisfaction and offered as management method for use by EMS managers.

  17. In the vicious circle of fear

    International Nuclear Information System (INIS)

    Zischka, A.

    1980-01-01

    Fear is the great driving force, the basic effect, without which there would be no adaption to new living conditions, and no provision for the future. But fear has a positive influence only as long as it does not gain the upper hand, for then it makes human beings blind and stifles activity. What is important, and will remain so, is the equilibrium between fear and courage, caution and the desire for action, optimism und pessimism. This equilibrium has now been disturbed in the western countries - and only here. Our present fears give rise to hardly any positive measures, but prevent provision for the future. We are threatened with failure due to the manipulated conversion of fear from the maintenance of life to an effect which destroys life. In this way we got into a vicious circle of fear: we must try to weaken the imagined dangers by emphasising the true conditions. The author discusses how the viscious circle can be broken. (orig.) 891 UA/orig. 892 MKO [de

  18. Problem Solving-based Learning Materials on Fraction for Training Creativity of Elementary School Students

    Science.gov (United States)

    Widhitama, Y. N.; Lukito, A.; Khabibah, S.

    2018-01-01

    The aim of this research is to develop problem solving based learning materials on fraction for training creativity of elementary school students. Curriculum 2006 states that mathematics should be studied by all learners starting from elementary level in order for them mastering thinking skills, one of them is creative thinking. To our current knowledge, there is no such a research topic being done. To promote this direction, we initiate by developing learning materials with problem solving approach. The developed materials include Lesson Plan, Student Activity Sheet, Mathematical Creativity Test, and Achievement Test. We implemented a slightly modified 4-D model by Thiagajan et al. (1974) consisting of Define, Design, Development, and Disseminate. Techniques of gathering data include observation, test, and questionnaire. We applied three good qualities for the resulted materials; that is, validity, practicality, and effectiveness. The results show that the four mentioned materials meet the corresponding criteria of good quality product.

  19. Development of probabilistic thinking-oriented learning tools for probability materials at junior high school students

    Science.gov (United States)

    Sari, Dwi Ivayana; Hermanto, Didik

    2017-08-01

    This research is a developmental research of probabilistic thinking-oriented learning tools for probability materials at ninth grade students. This study is aimed to produce a good probabilistic thinking-oriented learning tools. The subjects were IX-A students of MTs Model Bangkalan. The stages of this development research used 4-D development model which has been modified into define, design and develop. Teaching learning tools consist of lesson plan, students' worksheet, learning teaching media and students' achievement test. The research instrument used was a sheet of learning tools validation, a sheet of teachers' activities, a sheet of students' activities, students' response questionnaire and students' achievement test. The result of those instruments were analyzed descriptively to answer research objectives. The result was teaching learning tools in which oriented to probabilistic thinking of probability at ninth grade students which has been valid. Since teaching and learning tools have been revised based on validation, and after experiment in class produced that teachers' ability in managing class was effective, students' activities were good, students' responses to the learning tools were positive and the validity, sensitivity and reliability category toward achievement test. In summary, this teaching learning tools can be used by teacher to teach probability for develop students' probabilistic thinking.

  20. STEM LEARNING IN MATERIAL OF TEMPERATURE AND ITS CHANGE TO IMPROVE SCIENTIFIC LITERACY OF JUNIOR HIGH SCHOOL

    Directory of Open Access Journals (Sweden)

    N. Khaeroningtyas

    2016-04-01

    Full Text Available This research aims to determine the improvement of students’ scientific literacy after STEM (Science, Technology, Engineering, and Mathematics learning using 6E Learning by DesignTM Model on temperature and its changes material. The research was conducted in SMP Negeri (State Junior High School 1 Bumiayu in the academic year 2015/2016. The method used was quasi-experimental design with The Matching Only - pretest posttest control group design. This study used two group of experiment group of students who learned the material with STEM learning using 6E Learning by DesignTM, while the control group students learned with non-STEM learning. The analysis showed that the students' scientific literacy in experiment group is better than control group. The conclusion that can be drawn is STEM learning using 6E Learning by DesignTM on temperature and its changes material can improve students’ scientific literacy.

  1. Locating a circle on the plane using the minimax criterion

    DEFF Research Database (Denmark)

    Brimberg, Jack; Juel, Henrik; Schöbel, Anita

    2009-01-01

    We consider the problem of locating a circle with respect to existing facilities on the plane, such that the largest weighted distance between the circumference of the circle and the facilities is minimized. The problem properties are analyzed, and a solution procedure proposed......We consider the problem of locating a circle with respect to existing facilities on the plane, such that the largest weighted distance between the circumference of the circle and the facilities is minimized. The problem properties are analyzed, and a solution procedure proposed...

  2. Locating a general minisum 'circle' on a plane

    DEFF Research Database (Denmark)

    Brimberg, Jack; Juel, Henrik; Körner, Mark-Christoph

    2011-01-01

    We approximate a set of given points in the plane by the boundary of a convex and symmetric set which is the unit circle of some norm. This generalizes previous work on the subject which considers Euclidean circles only. More precisely, we examine the problem of locating and scaling the unit circle...... of some given norm k with respect to given points on the plane such that the sum of weighted distances (as measured by the same norm k) between the circumference of the circle and the points is minimized. We present general results and are able to identify a finite dominating set in the case that k...

  3. Impact of Virtual Patients as Optional Learning Material in Veterinary Biochemistry Education.

    Science.gov (United States)

    Kleinsorgen, Christin; von Köckritz-Blickwede, Maren; Naim, Hassan Y; Branitzki-Heinemann, Katja; Kankofer, Marta; Mándoki, Míra; Adler, Martin; Tipold, Andrea; Ehlers, Jan P

    2018-01-01

    Biochemistry and physiology teachers from veterinary faculties in Hannover, Budapest, and Lublin prepared innovative, computer-based, integrative clinical case scenarios as optional learning materials for teaching and learning in basic sciences. These learning materials were designed to enhance attention and increase interest and intrinsic motivation for learning, thus strengthening autonomous, active, and self-directed learning. We investigated learning progress and success by administering a pre-test before exposure to the virtual patients (vetVIP) cases, offered vetVIP cases alongside regular biochemistry courses, and then administered a complementary post-test. We analyzed improvement in cohort performance and level of confidence in rating questions. Results of the performance in biochemistry examinations in 2014, 2015, and 2016 were correlated with the use of and performance in vetVIP cases throughout biochemistry courses in Hannover. Surveys of students reflected that interactive cases helped them understand the relevance of basic sciences in veterinary education. Differences between identical pre- and post-tests revealed knowledge improvement (correct answers: +28% in Hannover, +9% in Lublin) and enhanced confidence in decision making ("I don't know" answers: -20% in Hannover, -7.5% in Lublin). High case usage and voluntary participation (use of vetVIP cases in Hannover and Lublin >70%, Budapest learning could be extended and generated cases should be shared across veterinary faculties.

  4. Quality Circles: Determination of Significant Factors for Success an a General Model for Implementing a Quality Circle Process.

    Science.gov (United States)

    1981-06-01

    receive for contributions to quality and productivity /4:Apdx-47. The initiative for the Quality Circle concept came from Dr Kaoru Ishikawa , a...eloquently summarized by the "Father of Quality Circles", Dr Kaoru Ishikawa . He sees that, although Japan started with the worst quality reputation among...Perceptions of Influence, Academy of Management Journal. December 1974, pp 649-bz. 49. Ishikawa , Kaoru . S.C. Circle Activities. Union of Japanese Scientists and

  5. ELT Materials: The Key to Fostering Effective Teaching and Learning Settings

    Directory of Open Access Journals (Sweden)

    Astrid Núñez Pardo

    2009-10-01

    Full Text Available Our article aims at providing teachers with an overview for materials development, taking into account the experience gained by two teachers in the English Programme of the School of Education at Universidad Externado de Colombia in Bogotá. This experience has helped us achieve better teaching and learning conditions for our university students in their quest to learn a foreign language. This paper addresses the issue of the role of teachers as textbook developers, and how they can meet materials development demands by integrating a clear conceptualisation and set of principles as well as their essential components.

  6. LEARNING MATERIALS SELECTION FOR DIFFERENTIATED INSTRUCTION OF ENGLISH FOR SPECIFIC PURPOSES OF FUTURE PROFESSIONALS IN THE FIELD OF INFORMATION TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    Oksana Synekop

    2017-09-01

    Full Text Available In conditions of differentiation the learning materials selection will optimize the training English for Specific Purposes of the future professionals in the field of information technology at university level. The purpose of the article is to define the basic unit of learning material, the factors of influence on the learning material selection, principles, criteria and the procedure of learning material selection in this paper. Reviewing the scientific achievements in the learning material selection in teaching English has become a basis for defining the factors of influence, principles and criteria in the research. The basic unit of learning material (learning English text for professional purposes is outlined. The factors of influence and principles (correspondence of learning materials to professional interests and needs of information technology students; necessary ability and accessibility; regarding the linguistic and stylistic necessity and sufficiency; availability of Internet sources information of the learning material selection are defined. Also, the qualitative criteria (authenticity; professional significance, relevance and informativeness; conformity of foreign language level and intellectual development of students; variety of genres and forms of speech, their sufficient filling by linguistic material; coherence, integrity, consistency, semantic completeness; topic conformity; situation conformity; unlimited access, reliability and exemplarity of Internet sources and the quantitative criteria (the amount of material of the learning material selection are highlighted. The process of English for Specific Purposes material selection (defining the disciplines of different cycles; defining spheres and related topics; outlining situations, communicative roles and intentions of professional communication; specifying the sources of selection; evaluating the texts; analysis of the knowledge, skills and sub-skills required for the

  7. Differences in daily disposable circle lens performance characteristics

    Directory of Open Access Journals (Sweden)

    Schafer JM

    2014-04-01

    Full Text Available Jeffery M Schafer, William T Reindel, Marjorie J Rah, Osbert Chan, Lening Zhang Bausch & Lomb Incorporated, Rochester, NY, USA Purpose: The purpose of this evaluation was to compare the performance characteristics of two cosmetically tinted contact lenses in the circle lens category that differ in lens design, lens material, and pigment print pattern: etafilcon A (1-Day Acuvue Define; Johnson & Johnson Vision Care and hilafilcon B (Naturelle; Bausch & Lomb Incorporated. Methods: Two hundred Asian subjects (400 eyes were enrolled in this 1-month parallel, bilateral, randomized study at ten investigative sites. Study lenses were dispensed at a screening/dispensing visit, and follow-up visits occurred at 2 weeks and 1 month. Lenses were worn on a daily disposable basis. Fit characteristics were evaluated at each visit, and slit-lamp evaluations were completed at each follow-up visit. Results: Of the 200 patients enrolled, 172 (344 eyes completed the study. The proportion of eyes with fully centered lenses was statistically significantly higher for the hilafilcon B group at the 2-week and 1-month visits, P<0.05. Over all visits, 0.6% of hilafilcon B eyes demonstrated incomplete corneal coverage, whereas for the etafilcon A group, 8.5% of eyes demonstrated incomplete corneal coverage and/or edge lift. The proportion of eyes with adequate lens movement was statistically significantly higher for the hilafilcon B group, P<0.05. Over all visits, none of the hilafilcon B eyes was reported to have excessive movement, whereas for etafilcon A lenses, 10.2% of eyes were reported to have excessive movement. Conclusions: Etafilcon A lenses were significantly less likely to be fully centered and significantly more likely to have incomplete corneal coverage and/or edge lift compared with the hilafilcon B lenses. Keywords: cosmetic contact lens, circle contact lens

  8. Meromorphic Vector Fields and Circle Packings

    DEFF Research Database (Denmark)

    Dias, Kealey

    The objective of the Ph.D. project is to initiate a classification of bifurcations of meromorphic vector fields and to clarify their relation to circle packings. Technological applications are to image analysis and to effective grid generation using discrete conformal mappings. The two branches...... of dynamical systems, continuous and discrete, correspond to the study of differential equations (vector fields) and iteration of mappings respectively. In holomorphic dynamics, the systems studied are restricted to those described by holomorphic (complex analytic) functions or meromorphic (allowing poles...... as singularities) functions. There already exists a well-developed theory for iterative holomorphic dynamical systems, and successful relations found between iteration theory and flows of vector fields have been one of the main motivations for the recent interest in holomorphic vector fields. Restricting...

  9. Controlled Microwave Heating Accelerates Rolling Circle Amplification.

    Science.gov (United States)

    Yoshimura, Takeo; Suzuki, Takamasa; Mineki, Shigeru; Ohuchi, Shokichi

    2015-01-01

    Rolling circle amplification (RCA) generates single-stranded DNAs or RNA, and the diverse applications of this isothermal technique range from the sensitive detection of nucleic acids to analysis of single nucleotide polymorphisms. Microwave chemistry is widely applied to increase reaction rate as well as product yield and purity. The objectives of the present research were to apply microwave heating to RCA and indicate factors that contribute to the microwave selective heating effect. The microwave reaction temperature was strictly controlled using a microwave applicator optimized for enzymatic-scale reactions. Here, we showed that microwave-assisted RCA reactions catalyzed by either of the four thermostable DNA polymerases were accelerated over 4-folds compared with conventional RCA. Furthermore, the temperatures of the individual buffer components were specifically influenced by microwave heating. We concluded that microwave heating accelerated isothermal RCA of DNA because of the differential heating mechanisms of microwaves on the temperatures of reaction components, although the overall reaction temperatures were the same.

  10. Inquiry and Blended Learning Based Learning Material Development for Improving Student Achievement on General Physics I of Mathematics and Natural Science of State University of Medan

    Science.gov (United States)

    Motlan; Sinulinggga, Karya; Siagian, Henok

    2016-01-01

    The aim of this research is to determine if inquiry and blended learning based materials can improve student's achievement. The learning materials are: book, worksheet, and test, website, etc. The type of this research is quasi experiment using two-group pretest posttest design. The population is all students of first year who take general physics…

  11. The analysis of mathematics teachers' learning on algebra function limit material based on teaching experience difference

    Science.gov (United States)

    Ma'rufi, Budayasa, I. Ketut; Juniati, Dwi

    2017-08-01

    The aim of this study was to describe the analysis of mathematics teachers' learning on algebra function limit material based on teaching experience difference. The purpose of this study is to describe the analysis of mathematics teacher's learning on limit algebraic functions in terms of the differences of teaching experience. Learning analysis focused on Pedagogical Content Knowledge (PCK) of teachers in mathematics on limit algebraic functions related to the knowledge of pedagogy. PCK of teachers on limit algebraic function is a type of specialized knowledge for teachers on how to teach limit algebraic function that can be understood by students. Subjects are two high school mathematics teacher who has difference of teaching experience they are one Novice Teacher (NP) and one Experienced Teacher (ET). Data are collected through observation of learning in the class, videos of learning, and then analyzed using qualitative analysis. Teacher's knowledge of Pedagogic defined as a knowledge and understanding of teacher about planning and organizing of learning, and application of learning strategy. The research results showed that the Knowledge of Pedagogy on subject NT in mathematics learning on the material of limit function algebra showed that the subject NT tended to describe procedurally, without explaining the reasons why such steps were used, asking questions which tended to be monotonous not be guiding and digging deeper, and less varied in the use of learning strategies while subject ET gave limited guidance and opportunities to the students to find their own answers, exploit the potential of students to answer questions, provide an opportunity for students to interact and work in groups, and subject ET tended to combine conceptual and procedural explanation.

  12. Elementary Students' Learning of Materials Science Practices Through Instruction Based on Engineering Design Tasks

    Science.gov (United States)

    Wendell, Kristen Bethke; Lee, Hee-Sun

    2010-12-01

    Materials science, which entails the practices of selecting, testing, and characterizing materials, is an important discipline within the study of matter. This paper examines how third grade students' materials science performance changes over the course of instruction based on an engineering design challenge. We conducted a case study of nine students who participated in engineering design-based science instruction with the goal of constructing a stable, quiet, thermally comfortable model house. The learning outcome of materials science practices was assessed by clinical interviews conducted before and after the instruction, and the learning process was assessed by students' workbooks completed during the instruction. The interviews included two materials selection tasks for designing a sturdy stepstool and an insulated pet habitat. Results indicate that: (1) students significantly improved on both materials selection tasks, (2) their gains were significantly positively associated with the degree of completion of their workbooks, and (3) students who were highly engaged with the workbook's reflective record-keeping tasks showed the greatest improvement on the interviews. These findings suggest the important role workbooks can play in facilitating elementary students' learning of science through authentic activity such as engineering design.

  13. Transforming physical materials into artefacts – learning in the school’s practice of Sloyd

    Directory of Open Access Journals (Sweden)

    Bent Illum

    2012-09-01

    Full Text Available This article describes learning and interaction in the practice of Sloyd [Craft and Design, sw. Slöjd] when pupils in the school’s practice of sloyd work on and transform material into a sloyd object in the Swedish comprehensive school. As an aid in depicting how cultural socialisation and learning in the practice of sloyd in school can be formulated, we make use of video-recorded empirical data from sloyd lessons in comprehensive school. Based on the empirical data collected, it is particularly important to analyse how communication during sloyd work takes place in the form of not only talk but also non-verbal interaction (body language, gestures, mimicry, etc. and other tool-mediated activities. Also of interest is the environment where learning takes place, for example, how the classroom for sloyd is furnished, accessibility, selection of tools and materials. Since only parts of the practice of sloyd have been scientifically described, all the conditions that affect interaction and learning in sloyd classrooms are of importance (Lindström, Borg, Johansson & Lindberg, 2003. Keywords: craft and design, sloyd, classroom research, sociocultural, learning materiality, microanalysis

  14. The rolling circle amplification and next generation sequencing ...

    African Journals Online (AJOL)

    Rolling circle amplification is a simple approach of enriching populations of single-stranded DNA plant begomovirus genomes (genus, Begomovirus; family, Geminiviridae). This is an innovative approach that utilizes the robustness of the bacteriophage phi29 DNA polymerase used in circle amplification, together with deep ...

  15. Quality Circles in Higher Education: Quality, Satisfaction, and Climate.

    Science.gov (United States)

    Kay, Carol; Healy, Margaret

    The effect of quality circles at Iowa State University on absenteeism, performance evaluation, perceptions of the organization climate, job satisfaction, and perceived opportunities for professional and personal growth was measured in this study. The process of quality circles is designed to promote job fulfillment and organizational productivity…

  16. D'Nealian Handwriting versus Circle-Stick Print.

    Science.gov (United States)

    Thurber, Donald N.

    This paper argues against teaching children to make letters using circle-stick writing. It contends that the circle-stick method requires continued pen/pencil lifts hindering rhythm or flow in the writing process and that there is little carry-over value into cursive writing as the two scripts are totally different. D'Nealian print, one type of…

  17. An Effective Time and Management Strategy in Quality Circles.

    Science.gov (United States)

    Halverson, Don E.

    Contending that participation in quality circles enhances effective time management by school administrators and teachers, this guide provides both a theoretical briefing and practical recommendations for better time management. A pre- posttest prefaces a review of basic concepts of quality circles with reference to the work of Abraham Maslow,…

  18. Building quality into academic programmes using quality circles | Ivy ...

    African Journals Online (AJOL)

    The use of teams or quality circles is a relatively new approach to quality improvement in higher education in South Africa. This article describes some of the advantages in using the approach and some of the pitfalls that need to be considered. The debate of the "quality circle life cycle", which culminates in the demise of the ...

  19. Finding the Maximal Area of Bounded Polygons in a Circle

    Science.gov (United States)

    Rokach, Arie

    2005-01-01

    The article deals with the area of polygons that are inscribed in a given circle. Naturally, the following question arises: Among all n-polygons that are inscribed in a given circle, which one has the biggest area? Intuitively, it may be guessed that is suitable for secondary students, and without any use id calculus, but only using very…

  20. Needs Analysis of the English Writing Skill as the Base to Design the Learning Materials

    Directory of Open Access Journals (Sweden)

    Tenri Ampa Andi

    2018-01-01

    Full Text Available This research used a descriptive method. It was aimed at identifying students’ learning needs for the English writing skill as the base for designing the learning materials. Writing skill covered the analysis of the types of paragraph, types of text, the components of writing and paragraph development. The subjects of the research were the fourth semester students that consisted of 330 students. The samples were taken 15 % randomly, so the number of samples was 50 students. The research used a questionnaire as the instrument to get responses from the students about their learning needs. The results showed that the learning needs for the writing skills coped with the types of paragraph development, the types of text, and components of writing skill. The types of paragraph development included the ways by definition (79.7%, classification (67.0%, listing (59.3%, cause effect (47.7%, example (47.3%, and comparison (45.7%. The types of text consisted of description (66.0%, news items (59.7%, narration (58.7%, discussion (56.7%, recount (57.0%, and exposition (50.7%. The components of writing skill contained structure (79.6%, vocabulary (79.4%, content (62.0%, organisation (53.6% and mechanic (34.0%. The implication of the findings would be the base of teaching and learning process, especially in designing the learning materials for the English writing skill.

  1. The Socio-Materiality of Learning Practices and Implications for the Field of Learning Technology

    Science.gov (United States)

    Johri, Aditya

    2011-01-01

    Although the use of digital information technologies in education has become commonplace, there are few, if any, central guiding frameworks or theories that explicate the relationship between technology and learning practices. In this paper, I argue that such a theoretical framework can assist scholars and practitioners alike by working as a…

  2. Application of adobe flash media to optimize jigsaw learning model on geometry material

    Science.gov (United States)

    Imam, P.; Imam, S.; Ikrar, P.

    2018-05-01

    This study aims to determine and describe the effectiveness of the application of adobe flash media for jigsaw learning model on geometry material. In this study, the modified jigsaw learning with adobe flash media is called jigsaw-flash model. This research was conducted in Surakarta. The research method used is mix method research with exploratory sequential strategy. The results of this study indicate that students feel more comfortable and interested in studying geometry material taught by jigsaw-flash model. In addition, students taught using the jigsaw-flash model are more active and motivated than the students who were taught using ordinary jigsaw models. This shows that the use of the jigsaw-flash model can increase student participation and motivation. It can be concluded that the adobe flash media can be used as a solution to reduce the level of student abstraction in learning mathematics.

  3. Framework for the Development of OER-Based Learning Materials in ODL Environment

    Science.gov (United States)

    Teng, Khor Ean; Hung, Chung Sheng

    2013-01-01

    This paper describes the framework for the development of OER-based learning materials "TCC121/05 Programming Fundamentals with Java" for ODL learners in Wawasan Open University (WOU) using three main development phases mainly: creation, evaluation and production phases. The proposed framework has further been tested on ODL learners to…

  4. The Use of Instructional Materials in the Teaching and Learning of ...

    African Journals Online (AJOL)

    The study sought to examine the extent to which instructional material have been used in the teaching and learning of Environmental Studies in the Primary Schools in Winneba. Purposive sampling was used to select 80 respondents comprising 60 Environmental Studies teachers and 20 pupils drawn from six public ...

  5. Active Learning and Just-in-Time Teaching in a Material and Energy Balances Course

    Science.gov (United States)

    Liberatore, Matthew W.

    2013-01-01

    The delivery of a material and energy balances course is enhanced through a series of in-class and out-of-class exercises. An active learning classroom is achieved, even at class sizes over 150 students, using multiple instructors in a single classroom, problem solving in teams, problems based on YouTube videos, and just-in-time teaching. To avoid…

  6. Costs and Benefits of Vendor Sponsored Learning Materials in Information Technology Education

    Science.gov (United States)

    Hua, David M.

    2013-01-01

    The demand for qualified information technology professionals remains high despite downturns in the economy. It is imperative to provide students with a curriculum that provides a broad foundation in information technology knowledge, skills, and abilities. Students also need access to specialized technologies and learning materials to develop the…

  7. Functions, Use and Effects of Embedded Support Devices in Printed Distance Learning Materials.

    Science.gov (United States)

    Martens, Rob; And Others

    1996-01-01

    To support distance learning, printed materials for the course are enriched with embedded support devices (ESD) such as schemes, illustrations, examples, questions, or margin texts. Results of 3 studies involving 900 Dutch university students indicated that students used and appreciated ESD, and that they led to better study results. (SLD)

  8. On design-oriented research and digital learning materials in higher education

    NARCIS (Netherlands)

    Hartog, R.J.M.

    2012-01-01

    The context of the research described in this thesis is formed by a number of research projects that were aimed at the design, development, implementation, use and evaluation of innovative digital learning materials. Most of these projects were carried out mainly within Wageningen University. In

  9. The Curriculum Material Center's Vital Link to Play and Learning: What's the Connection?

    Science.gov (United States)

    Madray, Amrita; Catalano, Amy

    2010-01-01

    Many educational theorists who study child development concur that the importance of play related materials in schools, homes and libraries is vital to the concept of play and learning. As academic librarians responsible for information literacy, and as the education liaison for the management and collection development of the instructional…

  10. Material Enactments of Identities and Learning in Everyday Community Practices: Implications for Pedagogy

    Science.gov (United States)

    Aberton, Helen

    2012-01-01

    In recent years there has been an upsurge of interest in applying actor-network theory (ANT) to educational research and analysis. This article presents an account of how an ANT analysis of socio-material practices with a focus on objects can bring informal learning and identity formation to view. It is based on a doctoral study of the everyday…

  11. Brush and learn : transforming tooth brushing behavior through interactive materiality, a design exploration

    NARCIS (Netherlands)

    Bruns, M.; Stienstra, J.T.; Dijkstra, R.

    2014-01-01

    To counteract the increased tendency in skill learning addressing our cognitive abilities we discuss an opportunity on how performance skills can be trained by means of inherent feed forward through interactive materiality. We address this approach in the context of designing an interactive

  12. Does Transformational Leadership Encourage Teacher’s Use of Digital Learning Materials?

    NARCIS (Netherlands)

    Vermeulen, Marjan; Van Acker, Frederik; Kreijns, Karel; Van Buuren, Hans

    2018-01-01

    To gain insight into how to promote teachers’ use of digital learning materials (DLMs) in their pedagogical practices we adopted the Integrated Model of Behavior Prediction to investigate the relationships between organizational and teacher related variables. A representative sample of 772 teachers

  13. Comparison of Chemistry Learning Outcomes with Inquiry Learning Model and Learning Cycle 5E in Material Solubility and Solubility Multiplication Results

    Directory of Open Access Journals (Sweden)

    Nur Indah Firdausi

    2015-04-01

    Full Text Available Perbandingan Hasil Belajar Kimia dengan Model Pembelajaran Inquiry dan Learning Cycle 5E pada Materi Kelarutan dan Hasil Kali Kelarutan   Abstract: This research is aimed to compare the effectiveness between inquiry and LC 5E in solubility equilibria and the solubility product for students with different prior knowledge. The effectiveness of both learning models is measured from students learning outcome. This quasi experimental research uses factorial2x2 with posttest only design. Research samples are chosen using cluster random sampling. They are two classes of XI IPA SMAN 1 Kepanjen in the 2012/2013 academic year which consist of 31 students in each class. Cognitive learning outcome is measured by test items consist of four objective items and nine subjective items. Technique of data analysis in this research is two way ANOVA. Research results show that: (1 cognitive learning outcome and higher cognitive learning outcome of students in inquiry class is higher than students in LC 5E class; (2 cognitive learning outcome and higher cognitive learning outcome of students who have upper prior knowledge is higher than students who have lower prior knowledge in both inquiry and LC 5E. Key Words: learning outcome, inquiry, learning cycle 5E, solubility equilibria and the solubility product   Abstrak: Penelitian ini bertujuan membandingkan keefektifan model inquiry dan LC 5E pada materi kelarutan dan hasil kali kelarutan untuk siswa dengan kemampuan awal berbeda. Keefektifan model pembelajaran dilihat dari hasil belajar kognitif siswa. Penelitian ini menggunakan rancangan eksperimen semu dengan desain faktorial 2x2. Subjek penelitian dipilih secara cluster random sampling yaitu dua kelas XI IPA SMAN 1 Kepanjen dengan jumlah masing-masing kelas sebanyak 31 siswa. Instrumen perlakuan yang digunakan adalah silabus dan RPP sedangkan instrumen pengukuran berupa soal tes terdiri dari empat soal objektif dan sembilan soal subjektif. Teknik analisis data

  14. The Development of Inquiry Learning Materials to Complete Content Life System Organization in Junior High School Students

    Science.gov (United States)

    Mayasari, F.; Raharjo; Supardi, Z. A. I.

    2018-01-01

    This research aims to develop the material eligibility to complete the inquiry learning of student in the material organization system of junior high school students. Learning materials developed include syllabi, lesson plans, students’ textbook, worksheets, and learning achievement test. This research is the developmental research which employ Dick and Carey model to develop learning material. The experiment was done in Junior High School 4 Lamongan regency using One Group Pretest-Posttest Design. The data collection used validation, observation, achievement test, questionnaire administration, and documentation. Data analysis techniques used quantitative and qualitative descriptive.The results showed that the developed learning material was valid and can be used. Learning activity accomplished with good category, where student activities were observed. The aspects of attitudes were observed during the learning process are honest, responsible, and confident. Student learning achievement gained an average of 81, 85 in complete category, with N-Gain 0, 75 for a high category. The activities and student response to learning was very well categorized. Based on the results, this researcher concluded that the device classified as feasible of inquiry-based learning (valid, practical, and effective) system used on the material organization of junior high school students.

  15. Evaluating the Effectiveness of Physlet-Based Materials in Supporting Conceptual Learning About Electricity

    Science.gov (United States)

    Ülen, Simon; Gerlič, Ivan; Slavinec, Mitja; Repnik, Robert

    2017-04-01

    To provide a good understanding of many abstract concepts in the field of electricity above that of their students is often a major challenge for secondary school teachers. Many educational researchers promote conceptual learning as a teaching approach that can help teachers to achieve this goal. In this paper, we present Physlet-based materials for supporting conceptual learning about electricity. To conduct research into the effectiveness of these materials, we designed two different physics courses: one group of students, the experimental group, was taught using Physlet-based materials and the second group of students, the control group, was taught using expository instruction without using Physlets. After completion of the teaching, we assessed students' thinking skills and analysed the materials with an independent t test, multiple regression analyses and one-way analysis of covariance. The test scores were significantly higher in the experimental group than in the control group ( p < 0.05). The results of this study confirmed the effectiveness of conceptual learning about electricity with the help of Physlet-based materials.

  16. Development of problem-based learning material for physics mathematics and its implementation

    Directory of Open Access Journals (Sweden)

    Pujayanto Pujayanto

    2017-02-01

    Full Text Available The research aims to develop Problem Based Learning material teaching of Mathematics Physics and to know the effect on the cognitive capability of undergraduate students. The research uses development method of Borg and Gall. There are ten steps such as data collection, planning, product drafting, pretest, pretest revise 1, main test, main test revise 2, posttest, final revision, and dissemination and implementation. The data collection uses questionnaire and cognitive test which will support the qualitative data. The result shows that the criterion of developing problem-based learning teaching materials is 5 level category when 43.33% respondents rate 5 level category and the others give 4 level category. Furthermore, students which use the materials increased and the most of the students have acquired cognitive value exceeds the value of minimum completeness criteria.

  17. The effectiveness of module with critical thinking approach on hydrolysis and buffer materials in chemistry learning

    Science.gov (United States)

    Nuswowati, M.; Purwanti, E.

    2018-03-01

    The research aims is to find out the effectiveness of critical thinking approach in Chemistry learning especially on hydrolysis and buffer materials. The level of its effectiveness was viewed from the students’ learning outcomes including knowledge, attitude and skill domains. The data were collected through validation sheets, questionnaires and tests, which were then analyzed by using descriptive quantitative method. The first step conducted was validating the module that was going to be used in the learning processes. The students’ learning outcome on knowledge domain was very good, viewed from the classical attainment by 88.63% with N-gain 0.718 with high criteria. It was also viewed from the students’ criticality level in solving the given problems. The result of the study revealed that more than 75% of the students obtained critical and very critical criteria in solving the given problems. The students’ attitudes and skills values were viewed through observation sheets during the learning processes. The result of the observation stated that more than 75% of the students showed good and very good attitudes and skills values. Based on the data, it could be concluded that the module with critical thinking approach was effective to be used on hydrolysis and buffer materials.

  18. Towards more efficient e-learning, intelligence and adapted teaching material

    Directory of Open Access Journals (Sweden)

    Damir Kalpić

    2010-12-01

    Full Text Available This article presents results of a research project in which we attempted to determine the relationship between efficient E-learning and teaching materials adapted based on students’ structure of intelligence. The project was conducted on approximately 500 students, 23 classes, nine elementary schools, with ten teachers of history, informatics and several licensed psychologists. E-teaching material was prepared for the subject of History for eight-grade students of elementary school. Students were tested for the structure of intelligence, and based on their most prominent component, they were divided into groups, using teaching materials adapted to their most prominent intelligence component. The results have shown that use of the adapted teaching materials achieved 6-12% better results than E-materials not adapted to students’ structure of intelligence.

  19. NEW MATERIALS FOR PEDAGOGICAL TEACHING-LEARNING IN BIOCHEMISTRY: MONITORING PARTICIPATION

    Directory of Open Access Journals (Sweden)

    R. S. Campos

    2015-08-01

    Full Text Available This summary consists of an experience report about actions taken by biochemical monitors with pharmacy students. The reason of our work was the intention to both improve the process of teaching and also learning and invalidate the labels owned by biochemistry of hard and high-level-failure subject. The three actors: teachers, students and monitor could act on an integrated basis for the construction of an articulated  pedagogical process between theory/practice and learning signification. Our main objective was to initiate the monitors in teaching practice effected through educational projects aimed at improving the teaching and learning of undergraduate courses and encouraging teacher training, involving teachers and students the guiding condition and monitors, respectively. The methodology was applied in three stages: 1 preparation of teaching materials; 2nd application in class and 3rd students rating of the methodology applied by monitors. The teaching materials presented discussed several biochemistry's topics and students had the opportunity to scaffold their own knowledge actively. Almost 90% considered the tool applied as highly related to classes and 82% considered this way of learning more significant than dialogical lectures. The performance of the monitors, focused on students and their learning, was considered great by students who were more motivated, resulting in the excellent evaluation of the work (100% of acceptance. The failure rate of the subject reduced in the four groups wherein the pedagogical materials were applied. It can demonstrate that both the mastery of scientific content and the pedagogical process involved during the teaching and learning moments are important.

  20. Observing before Learning: Visual Material for the Learning of English as a Foreign Language

    Directory of Open Access Journals (Sweden)

    Diana Benavides

    2009-12-01

    Full Text Available This article is a report of the findings of a research project developed in a Colombian school, Academia La Salle San Benildo, as a requirement for the B.A. degree in Modern Languages at La Salle University. The goal of this project is to describe the impact of working with visual material with the students of fifth and third grades. The data collected throughout the process include an interview, a survey, students’ work, and journals kept by the student teachers. The results of the analysis of the research show the importance of the application of visual material in the teaching process.

  1. Influence of the temperature on materials electric behaviour: Understanding and students’ learning difficulties

    Directory of Open Access Journals (Sweden)

    Antonio García Carmona

    2006-03-01

    Full Text Available In this article, we defend that in the teaching/learning of the electricity, its contents must be associa ted with contents concerning the structure and behaviour of the matter. Thus, it is possible to understand some electricity topics as the influence of the temperature on electric behaviour of materials. In this sense, we propose a conceptual framework for its teaching, coherent with the Spanish Physics and Chemistry curriculum of Secondary Education. Likewise, we show the results of a research carried out with 60 pupils (age 14-15, about theirs understanding levels and theirs learning difficulties regarding considered topic.

  2. Quality circles--new wave or fad?

    Science.gov (United States)

    Herkimer, A G

    1984-07-01

    The American healthcare industry must avoid the dangers of commitment to bureaucratic organizational thinking and be willing to experiment with Theory Z and quality circles. Productivity depends on trust, subtlety and intimacy. The industry must acknowledge that management style and organizational form are nothing more than facets of the larger organization of society. The ultimate goal should be to understand how the structure of society and the management of healthcare organizations can be coordinated. The common thread in Japanese life is intimacy. The caring, support, and disciplined unselfishness which makes life possible come through close social relationships. Accordingly, there is (or at least, there should be) a common thread in this nation's healthcare industry--the desire to render quality health care in an effective and efficient manner. The underlying messages are many, but they are not overwhelming. Perhaps the first message to healthcare managers is that a healthcare delivery system can realize the full potential of its employees only if it invests in their training and then shares with them the power to influence decisions. Without training, the invitation to participate in decision making will lead only to frustration and conflict. Without a sharing of decision-making power, an investment in training will be both frustrating and wasteful.(ABSTRACT TRUNCATED AT 250 WORDS)

  3. Controlled Microwave Heating Accelerates Rolling Circle Amplification.

    Directory of Open Access Journals (Sweden)

    Takeo Yoshimura

    Full Text Available Rolling circle amplification (RCA generates single-stranded DNAs or RNA, and the diverse applications of this isothermal technique range from the sensitive detection of nucleic acids to analysis of single nucleotide polymorphisms. Microwave chemistry is widely applied to increase reaction rate as well as product yield and purity. The objectives of the present research were to apply microwave heating to RCA and indicate factors that contribute to the microwave selective heating effect. The microwave reaction temperature was strictly controlled using a microwave applicator optimized for enzymatic-scale reactions. Here, we showed that microwave-assisted RCA reactions catalyzed by either of the four thermostable DNA polymerases were accelerated over 4-folds compared with conventional RCA. Furthermore, the temperatures of the individual buffer components were specifically influenced by microwave heating. We concluded that microwave heating accelerated isothermal RCA of DNA because of the differential heating mechanisms of microwaves on the temperatures of reaction components, although the overall reaction temperatures were the same.

  4. Androgen circle of polycystic ovary syndrome.

    Science.gov (United States)

    Homburg, Roy

    2009-07-01

    Although the aetiology of polycystic ovary syndrome (PCOS) is still not known and the search for causative genes is proving elusive, it is generally agreed that hyperandrogenism is at the heart of the syndrome. Here, it is proposed that excess androgens are the root cause of PCOS starting from their influence on the female fetus in programming gene expression, producing the characteristic signs and symptoms which are then exacerbated by a propagation of excess ovarian androgen production from multiple small follicles, anovulation and insulin resistance in the reproductive life-span, thus setting up a vicious perpetual circle of androgen excess. This opinion paper, rather than being a full-scale review, is intentionally biased in support of this hypothesis that androgen excess is the 'root of all evil' in PCOS; in the hope that its acceptance could lead to more direct treatment of the syndrome in all its facets rather than the symptomatic treatment of side effects of androgen excess that we are addressing today.

  5. Designing and Developing Supplemental Technology of PACI Model Materials through Blended Learning Methods

    Directory of Open Access Journals (Sweden)

    Effendi Limbong

    2017-06-01

    Full Text Available The 21st century English teachers and lecturers are required to have competencies in translating Content Knowledge (CK, integrating various Pedagogical Knolwedge (PK and implementing Technological Knowledge (TK in order to produce effective and efficient teaching. This research reveals and describes researchers efforts and pre-service EFL teachers (PSEFLTs roles in designing and developing the supplemental teaching and learning materials with PowerPoint, Audacity, Camtasia and Internet. To transform researcher roles and model to introduce and implement Technological, Pedagogical, and Content Knowledge (TPACK framework, this research implemented blended learning: traditional face to face (F2F and Facebook closed-group discussion (FBcgD based on Project-Based Learning (PBL. This research employed the qualitative autobiography narrative of self-study from the researchers experiences to implement blended learning. Semi-structure interviews were conducted with four PSEFLTs of group A and five PSEFLTs of group B to seek the PSEFLTs experiences in designing and developing PACI model. The results suggested that blended learning is can effectively and efficiently integrate and implement the design and development of a PACI model. Most importantly both of researcher and two groups realized that in integration of TPACK during a Computer Literacy course, the subject matter may be shaped by the application of technology; teaching as well as learning might be changed by the use of technology and the way to represent and communicate specific lessons to students.

  6. ELECTRONIC MEDIA LEARNING MATERIALS OF INDIRA GANDHI NATIONAL OPEN UNIVERSITY, INDIA: An Analytical Study

    Directory of Open Access Journals (Sweden)

    Manoj Roy. V.

    2013-10-01

    Full Text Available The establishment of the Indira Gandhi National Open University (IGNOU in 1985 has been a milestone in the growth of higher education in India. A very special feature of the University is that a composite of several instructional methods in practice are aimed at giving effective support to distance learners. Self-instructional print materials are the mainstay of the courseware. Besides this, at the support centres, the learners attend a few face-to-face counselling sessions and get access to audio-video materials stocked in the library. Gyandarshan and Gyanvani, the educational television and radio channels broadcast programmes with academic content. The curriculum-based audio-video programmes developed by the University are supplementary in nature. This blending of traditional printed self-learning materials with electronic courseware is a conscious decision of the University which is intended to enhance the quality and effectiveness of learning. Over the years, audio and video cassettes have made way for digital compact discs. Resultant development in information and communication technology heralded virtual campus initiatives of IGNOU, conspicuous among them being the creation of eGyanKosh, the digital repository of the learning materials of IGNOU. Nevertheless, majority of the academic programmes are not being provided audio video supports. The paper analyses the application of electronic media in IGNOU’s course delivery platform.

  7. Age and personal values: Similar value circles with shifting priorities.

    Science.gov (United States)

    Borg, Ingwer; Hertel, Guido; Hermann, Dieter

    2017-11-01

    This study examined the relationship of personal values to age using data from two representative surveys. We hypothesized that individuals organize personal values, regardless of their age, as a circle with the same order of values on this circle but that older persons are closer to conservation and more remote from openness to change and closer to self-transcendence and more distant from self-enhancement. The structural stability of the value circle over age was largely confirmed across and within individuals. Different age groups exhibited a tendency to more strongly cluster those values that they rated as relatively important. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  8. Geometric fit of a point set by generalized circles

    DEFF Research Database (Denmark)

    Körner, Mark-Christopher; Brimberg, Jack; Juel, Henrik

    2010-01-01

    In our paper we approximate a set of given points by a general circle. More precisely, given two norms k 1 and k 2 and a set of points in the plane, we consider the problem of locating and scaling the unit circle of norm k 1 such that the sum of weighted distances between the circumference...... of the circle and the given points is minimized, where the distance is measured by a norm k 2. We present results for the general case. In the case that k 1 and k 2 are both polyhedral norms, we are able to solve the problem by investigating a finite candidate set....

  9. Active Learning through Materials Development: A Project for the Advanced L2 Classroom

    Directory of Open Access Journals (Sweden)

    Katrina Daly Thompson

    2008-01-01

    Full Text Available Building on the notion of active learning, the assumption that students learn more when given opportunities to practice using their skills and to receive feedback on their performance, this article de-scribes a project undertaken in an Advanced (third-year Swahili course in which students were given the opportunity to develop L2 materials for computer-mediated peer instruction. The article exam-ines the goals, design and results of the project in light of the litera-ture on active learning and learner autonomy, and suggests how the project might be improved in order to serve as a model for other Ad-vanced L2 courses.

  10. Incidental and intentional learning of verbal episodic material differentially modifies functional brain networks.

    Directory of Open Access Journals (Sweden)

    Marie-Therese Kuhnert

    Full Text Available Learning- and memory-related processes are thought to result from dynamic interactions in large-scale brain networks that include lateral and mesial structures of the temporal lobes. We investigate the impact of incidental and intentional learning of verbal episodic material on functional brain networks that we derive from scalp-EEG recorded continuously from 33 subjects during a neuropsychological test schedule. Analyzing the networks' global statistical properties we observe that intentional but not incidental learning leads to a significantly increased clustering coefficient, and the average shortest path length remains unaffected. Moreover, network modifications correlate with subsequent recall performance: the more pronounced the modifications of the clustering coefficient, the higher the recall performance. Our findings provide novel insights into the relationship between topological aspects of functional brain networks and higher cognitive functions.

  11. Exploring the effect of materials designed with augmented reality on language learners' vocabulary learning

    Directory of Open Access Journals (Sweden)

    Ekrem Solak

    2015-07-01

    Full Text Available The purpose of this study was to determine the motivational level of the participants in a language classroom towards course materials designed in accordance with augmented reality technology and to identify the correlation between academic achievement and motivational level. 130 undergraduate students from a state-run university in Turkey participated in this study and Turkish version of Material Motivational Survey was used to determine the undergraduate students’ motivational level about the materials which were designed with AR technology to teach English words at the elementary level. The results of this study suggested that AR technology materials had positive impact on increasing undergraduate students’ motivation towards vocabulary learning in language classroom. This study also signified that a positive significant correlation was found between academic achievement and the motivation in the use of AR technology in language classroom.

  12. Pembelajaran Matematika Konstruktivistik Berbasis Humanistik Berbantuan E-Learning Pada Materi Segitiga Kelas VII

    Directory of Open Access Journals (Sweden)

    Amidi Amidi

    2014-10-01

    Full Text Available Penelitian ini bertujuan untuk meningkatkan pemahaman konsep dan memperbaiki sikap belajar peserta didik melalui pengembangan perangkat pembelajaran matematika kons-truktivis berbasis humanistik berbantuan e-learning. Penelitian ini merupakan penelitian pe-ngembangan dengan model 4D yang diadaptasi menjadi 4P, yaitu pendefinisian (analisis awal-akhir, analisis peserta didik, analisis materi, analisis tugas, dan merumuskan tujuan pembelajaran khusus, perancangan (penyusunan kriteria tes, pemilihan media, pemilihan format, dan desain awal, pengembangan (validasi ahli dan uji coba, dan penyebaran. Ada-pun perangkat yang dikembangkan adalah Silabus, RPP, LKPD, dan E-learning. Teknik pe-ngumpulan data pada penelitian ini adalah dengan metode tes, dokumentasi, observasi, dan angket. Berdasarkan analisis data dapat disimpulkan bahwa keterampilan proses dan sikap belajar peserta didik lebih baik, karena kedua variabel secara bersama memberikan pengaruh posi-tif terhadap prestasi belajar peserta didik. Rata-rata prestasi belajar kelas eksperimen mele-bihi batas KKM, sehingga rata-rata prestasi belajar kelas eksperimen lebih baik dari kelas kontrol. Sehingga dapat disimpulkan pembelajaran efektif. The purpose of this research was improving the understanding of the concept and improving the attitudes of learners through the development of software-based humanistic constructivist mathematics assisted e-learning. The research is a development research using 4D model, which is modified to 4P model, namely defining (initial-end analysis, students analysis, material analysis, assignment analysis, and formulate particular learning purpose, designing (formulate test criteria, choose media, chose format, and initial design, developing (validation by expert and try out, and dissemination. The devices develop are Syllabus, Lesson Plan, Worksheet, and E-learning. The data are collected though are test method, documentation, observation, and questionnaire. Based on

  13. DEVELOPING OF ELECTRONIC TEACHING MATERIAL BASED ON MOBILE LEARNING IN THE WAVE SUBJECTS

    Directory of Open Access Journals (Sweden)

    D. H. Rif’ati

    2015-07-01

    Full Text Available In the advanced and modern era, technological sophistication led to learning which initially runs, in which teachers and students meet each other and communicate in the classroom, can be implemented through of information technology. Along with the development of information, where books and teachers who initially as a primary source of learning, are now beginning to experience growth from the internet. Mobile learning defined as mobile devices that are used in the learning process. The wave course is one of subject that must be taken by students of physics education in the third semester. This course emphasizes the concepts of wave were reviewed mathematically and the phenomenon that occurs in everyday life. Mobile learning developed in this study in the form of electronic teaching materials on subjects of waves. The aim of this study was to develop electronic teaching material in the form of mobile learning. The sample of this study is 80 students in the third semester students who are taking waves courses. The results show that mobile learning that has been developed has score 3.8 and included valid criteria. Pada era yang serba maju dan modern, kecanggihan teknologi menyebabkan pembelajaran yang awalnya berjalan satu arah, dimana guru dan siswa saling bertemu dan berkomunikasi di dalam kelas, dapat dilaksanakan melalui bantuan teknologi.informasi. Seiring dengan perkembangan informasi, buku dan guru yang awalnya sebagai sumber belajar utama, saat ini sudah mulai mengalami perkembangan dimana sumber belajar yang berasal dari internet sudah mulai sering dimanfaatkan dalam proses pembelajaran. Mobile larning didefinisikan sebagai perangkat mobile yang dipergunakan dalam proses belajar mengajar. Mata kuliah gelombang sendiri merupakan salah satu mata kuliah yang wajib ditempuh oleh mahasiswa program studi pendidikan fisika semester 3. Mata kuliah ini menekankan pada konsep gelombang yang ditinjau secara matematis dan fenomenanya yang terjadi

  14. Evaluation of simulation learning materials use to fill the gap in Japanese dental English education.

    Science.gov (United States)

    Seki, Naoko; Moross, Janelle; Sunaga, Masayo; Hobo, Koki; Miyoshi, Tomoe; Nitta, Hiroshi; Kinoshita, Atsuhiro; Morio, Ikuko

    2016-01-01

    Even though English is most frequently the common language when the patient's native language differs from that of a dentist, the opportunities for Japanese undergraduate dental students to learn dental English are now quite limited. The purposes of our study were to investigate: the effectiveness and feasibility of the computer-assisted simulation materials as one solution strategy for dental English education in Japan, and the needs and demands for dental English from the learners' side. Interactive simulation materials for medical interviews in English and clinical cases which were translated to English, were delivered via Learning Management System (LMS) to nineteen trainee residents of dentistry (residents). Evaluation for the materials, learners' knowledge and interests in the contents, and ease of operation were obtained by post-questionnaire (response rates were 100% and 95%, respectively). Both questionnaire-surveys received positive feedback toward the materials, yet 47% answered that they lacked the level of knowledge about contents of the medical interview in English. Results were sufficient to suggest that the residents would like to have the opportunity to study or practice medical interview in English, or English related to dentistry, and that the simulation materials could be one of the solution strategies for opportunity provision.

  15. CircleRides: developing an older adult transportation application and evaluating feedback.

    Science.gov (United States)

    Heinz, Melinda; Kelly, Norene

    2015-05-01

    The purpose of the current study was to assess perceptions of CircleRides, a paper prototype of a service website designed to meet older adult transportation needs. Researchers used purposive sampling to conduct two focus groups comprised of older adults to obtain feedback on the CircleRides prototype at the beginning of its iterative design process. One focus group was conducted in a continuing care retirement community (n = 13) and the other in an independent living community for older adults (n = 11). The study assessed perceptions of the CircleRides prototype as well as self-reported older adult transportation preferences and needs. Three themes emerged from the data: (a) trust and concern, (b) socialization, and (c) flexibility and options. Researchers found that participants are interested in transportation options; however, concern exists about trusting a new system or prototype that has not established a reputation. Findings from the current study offer lessons learned for future iterations and for creating transportation prototypes for older adults. Copyright 2015, SLACK Incorporated.

  16. The Improvement of Communication and Inference Skills in Colloid System Material by Problem Solving Learning Model

    OpenAIRE

    maisarera, yunita; diawati, chansyanah; fadiawati, noor

    2012-01-01

    The aim of this research is to describe the effectiveness of problem solving learning in improving communication and inference skills in colloid system material. Subjects in this research were students of XIIPA1 and XI IPA2 classrooms in Persada Junior High School in Bandar Lampung in academic year 2011-2012 where students of both classrooms had the same characteristics. This research used quasi experiment method and pretest-posttest control group design. Effectiveness of problem solving le...

  17. How Design of Online Learning Materials can Accommodate the Heterogeneity in Student Abilities, Aptitudes and Aspirations

    OpenAIRE

    Bates, Simon; Hardy, Judy; Hill, Jon; McKain, David; University of Gloucestershire

    2008-01-01

    We describe the challenges facing higher education in terms of the heterogeneity of the cohort of students that arrive at university. The reasons why such diversity exists are many: students differ widely in terms of their preparedness for study at university, their degree choice aspirations and the issue of motivation for study of a particular subject. We illustrate how well-designed e-learning course materials can support many of the particular facets of heterogeneity by offering an inheren...

  18. Mode-locking in an infinite set of coupled circle maps

    International Nuclear Information System (INIS)

    Alstroem, P.; Ritala, R.K.

    1986-06-01

    We show that the mode-locking in coupled circle maps with random phases is very different from that in a single circle map. A finite nonlinearity K c is needed for a step to appear. The width of the step behaves as (K-K c ) 2 . The complete mode-locking (at K=1 for uncoupled maps) behaves singularly as the coupling is turned on. We argue that our model describes the mode-locking in charge-density-wave materials. Our results are in qualitative agreement with experimental observations by Sherwin and Zettl that only few true steps exist in I-V characteristics and that in addition to these there are some 'incomplete' steps. (orig.)

  19. Parhelic-like circle from light scattering in Plateau borders

    Energy Technology Data Exchange (ETDEWEB)

    Tufaile, A., E-mail: tufaile@usp.br; Tufaile, A.P.B.

    2015-03-06

    We are reporting a new simple optical element to generate halos. We have observed interesting patterns of light scattering in Plateau borders in foams. In analogy to the atmospheric phenomena known as parhelic circle, sun dogs, and sun pillars, we have named the features of the patterns observed as parlaseric circle, laser dogs, and laser pillars. The triangular symmetry of the Plateau borders is analogous to the hexagonal symmetry of ice crystals which produce these atmospheric phenomena. Working with one Plateau border at a time, we have observed wave optics phenomena that are not perceived in the atmospheric phenomena, such as diffraction and interference. - Highlights: • We obtained halo formation from light scattering in a Plateau border using an experiment. • We explained halo formation using geometrical theory of diffraction. • An optical element based on a Plateau border is proposed. • We compared some aspects of the parhelic circle with the parlaseric circle.

  20. Quality Productivity Circle in Manufacture | Achi | Nigerian Journal of ...

    African Journals Online (AJOL)

    A brief history of quality control and productivity is hereby traced. ... Circle management technique are discussed in its relationship with productivity. ... so should be made sound in body (and spirit) through appropriate training and motivation.

  1. Research Circles - a method for developing guidance practices

    DEFF Research Database (Denmark)

    2012-01-01

    This video reports on our work with using research circles to improve our understanding of how to provide guidance and counseling to help young people in danger of dropping out of school. The video is based on the paper: Research Circles -- a method for developing guidance practices, and was pres......This video reports on our work with using research circles to improve our understanding of how to provide guidance and counseling to help young people in danger of dropping out of school. The video is based on the paper: Research Circles -- a method for developing guidance practices......, and was presented at the Conference for Social Justice, Prosperity and Sustainable Employment 2012 by assistant professor Helle Merete Nordentoft from DPU (http://edu.au.dk/). The film communicating the research paper was created by Mie Nørgaard...

  2. Squaring the Circle: Attempting Peace in Northern Ireland

    National Research Council Canada - National Science Library

    Marchi, Gina

    1997-01-01

    Finding a political framework for self-government in Northern Ireland that will be supported by both nationalists and unionists is referred to as a modern day attempt to do the impossible-to 'square the circle...

  3. Primer Extension Mutagenesis Powered by Selective Rolling Circle Amplification

    Science.gov (United States)

    Huovinen, Tuomas; Brockmann, Eeva-Christine; Akter, Sultana; Perez-Gamarra, Susan; Ylä-Pelto, Jani; Liu, Yuan; Lamminmäki, Urpo

    2012-01-01

    Primer extension mutagenesis is a popular tool to create libraries for in vitro evolution experiments. Here we describe a further improvement of the method described by T.A. Kunkel using uracil-containing single-stranded DNA as the template for the primer extension by additional uracil-DNA glycosylase treatment and rolling circle amplification (RCA) steps. It is shown that removal of uracil bases from the template leads to selective amplification of the nascently synthesized circular DNA strand carrying the desired mutations by phi29 DNA polymerase. Selective RCA (sRCA) of the DNA heteroduplex formed in Kunkel's mutagenesis increases the mutagenesis efficiency from 50% close to 100% and the number of transformants 300-fold without notable diversity bias. We also observed that both the mutated and the wild-type DNA were present in at least one third of the cells transformed directly with Kunkel's heteroduplex. In contrast, the cells transformed with sRCA product contained only mutated DNA. In sRCA, the complex cell-based selection for the mutant strand is replaced with the more controllable enzyme-based selection and less DNA is needed for library creation. Construction of a gene library of ten billion members is demonstrated with the described method with 240 nanograms of DNA as starting material. PMID:22355397

  4. SchNet - A deep learning architecture for molecules and materials

    Science.gov (United States)

    Schütt, K. T.; Sauceda, H. E.; Kindermans, P.-J.; Tkatchenko, A.; Müller, K.-R.

    2018-06-01

    Deep learning has led to a paradigm shift in artificial intelligence, including web, text, and image search, speech recognition, as well as bioinformatics, with growing impact in chemical physics. Machine learning, in general, and deep learning, in particular, are ideally suitable for representing quantum-mechanical interactions, enabling us to model nonlinear potential-energy surfaces or enhancing the exploration of chemical compound space. Here we present the deep learning architecture SchNet that is specifically designed to model atomistic systems by making use of continuous-filter convolutional layers. We demonstrate the capabilities of SchNet by accurately predicting a range of properties across chemical space for molecules and materials, where our model learns chemically plausible embeddings of atom types across the periodic table. Finally, we employ SchNet to predict potential-energy surfaces and energy-conserving force fields for molecular dynamics simulations of small molecules and perform an exemplary study on the quantum-mechanical properties of C20-fullerene that would have been infeasible with regular ab initio molecular dynamics.

  5. Material Matters for Learning in Virtual Networks: A Case Study of a Professional Learning Programme Hosted in a Google+ Online Community

    Science.gov (United States)

    Ackland, Aileen; Swinney, Ann

    2015-01-01

    In this paper, we draw on Actor-Network Theories (ANT) to explore how material components functioned to create gateways and barriers to a virtual learning network in the context of a professional development module in higher education. Students were practitioners engaged in family learning in different professional roles and contexts. The data…

  6. Circles South East: the first 10 years 2002-2012.

    Science.gov (United States)

    Bates, Andrew; Williams, Dominic; Wilson, Chris; Wilson, Robin J

    2014-07-01

    This article describes the first 10 years of the implementation of Circles of Support and Accountability (Circles) in the management of sexual offenders in South-East England by Circles South East (CSE). The Circles of 71 core members are reviewed in detail, with reference to demographic data, offense and sentencing histories, risk assessment data, and considerations regarding Multi-Agency Public Protection Arrangements. A group of 71 comparison subjects who were referred to CSE and deemed suitable for but did not receive the service was identified. Follow-up behaviors of both groups are examined (including all forms of reconviction, breach of orders, and prison recall). Over a comparable follow-up period of 55 months, the incidence of violent and contact sexual reconviction in the comparison group was significantly higher than for the Circles cohort. Comparisons are made between expected and actual levels of sexual reconviction, with the Circles cohort showing lower than expected rate of sexual reconviction but not to a statistically significant degree. © The Author(s) 2013.

  7. Developing a Self-Learning Education Material for Learning Team Development

    OpenAIRE

    伊藤, 恵; 木塚, あゆみ; 奥野, 拓; 松原, 克弥; 大場, みち子

    2018-01-01

    実践的教育手法としてProject-Based Learning(以下PBL)が注目されており,情報系の学部や研究科においてもシステム開発を中心としたPBLが広く行われてきている.身に付けるべき技術が多岐にわたる場合,1回のPBL受講で習得できることに限りがあることから,複数回のPBL受講が望ましいが,限られた教育期間の中で複数の受講が難しい場合もある.そこで我々は個々の学生のPBL受講回数不足を補完するために,チーム開発を模擬的に個人学習で学ぶ自習教材を開発した.実際にこの教材を用いた教育試行を行い,開発した教材を受講した後に通常のPBLを受講した学生と,通常のPBLを2回受講した学生との比較分析を行い,通常のPBL受講に比べると不十分な点もあるものの,スキル習得に一定の効果が見られることがわかった....

  8. Assessing the Effects of Different Multimedia Materials on Emotions and Learning Performance for Visual and Verbal Style Learners

    Science.gov (United States)

    Chen, Chih-Ming; Sun, Ying-Chun

    2012-01-01

    Multimedia materials are now increasingly used in curricula. However, individual preferences for multimedia materials based on visual and verbal cognitive styles may affect learners' emotions and performance. Therefore, in-depth studies that investigate how different multimedia materials affect learning performance and the emotions of learners…

  9. Learning structure-property relationship in crystalline materials: A study of lanthanide-transition metal alloys

    Science.gov (United States)

    Pham, Tien-Lam; Nguyen, Nguyen-Duong; Nguyen, Van-Doan; Kino, Hiori; Miyake, Takashi; Dam, Hieu-Chi

    2018-05-01

    We have developed a descriptor named Orbital Field Matrix (OFM) for representing material structures in datasets of multi-element materials. The descriptor is based on the information regarding atomic valence shell electrons and their coordination. In this work, we develop an extension of OFM called OFM1. We have shown that these descriptors are highly applicable in predicting the physical properties of materials and in providing insights on the materials space by mapping into a low embedded dimensional space. Our experiments with transition metal/lanthanide metal alloys show that the local magnetic moments and formation energies can be accurately reproduced using simple nearest-neighbor regression, thus confirming the relevance of our descriptors. Using kernel ridge regressions, we could accurately reproduce formation energies and local magnetic moments calculated based on first-principles, with mean absolute errors of 0.03 μB and 0.10 eV/atom, respectively. We show that meaningful low-dimensional representations can be extracted from the original descriptor using descriptive learning algorithms. Intuitive prehension on the materials space, qualitative evaluation on the similarities in local structures or crystalline materials, and inference in the designing of new materials by element substitution can be performed effectively based on these low-dimensional representations.

  10. Materials degradation in fission reactors: Lessons learned of relevance to fusion reactor systems

    International Nuclear Information System (INIS)

    Was, Gary S.

    2007-01-01

    The management of materials in power reactor systems has become a critically important activity in assuring the safe, reliable and economical operation of these facilities. Over the years, the commercial nuclear power reactor industry has faced numerous 'surprises' and unexpected occurrences in materials. Mitigation strategies have sometimes solved one problem at the expense of creating another. Other problems have been solved successfully and have motivated the development of techniques to foresee problems before they occur. This paper focuses on three aspects of fission reactor experience that may benefit future fusion systems. The first is identification of parameters and processes that have had a large impact on the behavior of materials in fission systems such as temperature, dose rate, surface condition, gradients, metallurgical variability and effects of the environment. The second is the development of materials performance and failure models to provide a basis for assuring component integrity. Last is the development of proactive materials management programs that identify and pre-empt degradation processes before they can become problems. These aspects of LWR experience along with the growing experience with materials in the more demanding advanced fission reactor systems form the basis for a set of 'lessons learned' to aid in the successful management of materials in fusion reactor systems

  11. Cerebral cross-perfusion and the Circle of Willis: does physiology trump anatomy?

    Directory of Open Access Journals (Sweden)

    Musicki K

    2017-07-01

    Full Text Available Korana Musicki,1 Katherine Victoria Hurst,1,2 Zoltán Molnár,3 Elizabeth Hardy,4 Ashok Handa,1,2 1Department of Vascular Surgery, John Radcliffe Hospital, 2Nuffield Department of Surgical Sciences, 3Department of Physiology, Anatomy and Genetics, University of Oxford, 4Vascular Studies Unit, John Radcliffe Hospital, Oxford, UK Introduction: Cerebral cross-perfusion is essential for ipsilateral brain viability during unilateral insult. Aortic arch and great vessel procedures depend on its function for safe practice, unless adjuncts like shunts are used. This paper assesses the contribution of cerebrovascular anatomy against physiology in determining requisite hemispheric perfusion during carotid endarterectomy (CEA.Materials and methods: A review of shunting requirements for CEAs under locoregional anesthesia (LA at the John Radcliffe Hospital during 1999–2013 was performed. A PubMed search for “Circle of Willis” was screened for all original articles defining cerebrovascular anatomy by postmortem or angiography.Results: Over 14 years, 1137 CEAs were performed under cervical plexus block; during this period, the departmental standard of practice evolved from exclusively general anesthesia to predominantly LA. CEAs performed under LA during the early phase (1999–2003 had a shunt rate of 15.1%, compared to 20% as predicted by stump pressures alone. However, shunting decreased as higher perioperative systolic pressures were routinely practiced; shunt rates were 8.0% during the intermediate (2004–2007 and 6.4% during the later (2008–2013 phase. By comparison, 25 articles characterizing 6414 brains report an intact circle of Willis in 33–35% of people, with a complete hemi-circle anteriorly (77% seen more commonly than posteriorly (42%, and 11–16% deficient in both hemi-circles with no cross-flow.Conclusion: Cerebral cross-perfusion is fundamental for safe CEA. Anatomy of the circle of Willis alone does not itself determine adequacy

  12. Evaluation of the e-Learning material developed by EMERALD and EMIT for diagnostic imaging and radiotherapy.

    Science.gov (United States)

    Aitken, Victoria; Tabakov, Slavik

    2005-09-01

    Two Leonardo projects, EMERALD and EMIT, have developed in a partnershipof university and hospital departments (the consortia) e-Learning materials in X-ray diagnostic radiology, nuclear medicine, radiotherapy, ultrasound and magnetic resonance imaging for medical physics graduates and other healthcare professionals. These e-Learning materials are described in a separate paper in this issue. To assess the effectiveness and relevance of the e-Learning material, a series of evaluations by student users groups plus experts in medical physics education and training were undertaken. The students, with backgrounds in physics and clinical ultrasound, reviewed the e-Learning material using an evaluation form developed by the consortia. The student feedback was favourable with students commenting that their level of knowledge had increased having completed the tasks. Areas identified for development were a reduction in text volume and an increase in the time allowed for completion of some tasks. The feedback from the experts was positive with an overall appreciation of the value of the learning material as a resource for students in medical physics field across Europe and identified other disciplines in which the access to the learning material could be useful contribution to their learning. Suggestions made for improvements ranged from grading the tasks into basic and advanced topics to increasing the interactive nature of the material. These early evaluation of the e-Learning material look promising and provide a framework for further developments in the field. Insight into users and providers views is important if developers are to provide relevant and worthwhile educational learning opportunities.

  13. Three Concentric Circles: Young Chinese English Learners' Perceptions of Purposeful Audiences

    Science.gov (United States)

    Liu, Jack Jinghui

    2015-01-01

    English learners have more access to communicate with different purposeful audiences across the Three Concentric Circles of English (Kachu, 1985): the Inner Circle, the Outer Circle and the Expanding Circle. However, young language learners' purposeful audience as a focus of communication has not been emphasized as much as other linguistic…

  14. Material and surface - Course synergy as a channel towards a more encompassing view of learning

    Directory of Open Access Journals (Sweden)

    Ana Nuutinen

    2016-02-01

    Full Text Available The course Material and Surface is a combination of four minor courses: Experiential Textile Design, Dyeing, Textile Printing and Embroidery. The course combination is offered to first-year textile teacher students. Through combining courses, the aim has been to support integrated learning and transform fragmented education into a thematically coherent whole. The four courses form an intertwined and progressive structure in which each course is based on the knowledge learned from the previous course. The creative basis of the Experiential Textile Design course applies David Kolb’s theory (1984. The creative ideas are then applied to assignments in Dyeing, Textile Printing and Embroidery. Following the courses, students collect assignments in a learning portfolio. They organize their assignments in a progressive order to self-assess personal development, the creative process and changes in learning and thinking. The aims of this research were to find out 1 how the course combination reinforced students’ understanding of their own learning, 2 in which ways students’ own experiences strengthened their personal development and 3 what effect the collaboration had on teachers and their working. Data collected during the years 2008–2013 consisted of students’ portfolios (N=152, teachers' self-reflections as notes and diary remarks and notes from the final critiques. Data were analyzed using qualitative content analysis. The results indicate that the learning portfolio serves as feedback for the teachers. During the courses, the students worked in groups and shared experiences which strengthened collective values and meanings. Mutual sharing built the group’s cohesion, which was observable in students’ vivid and increasing discussions: they shared more of their ideas, they encouraged and inspired each other.  Diversity appeared to be the most important feature that arose from the data – all experiences were evaluated equally true and

  15. Alternative routes for highway shipments of radioactive materials and lessons learned from state designations

    International Nuclear Information System (INIS)

    1990-07-01

    Pursuant to the Hazardous Materials Transportation Act (HMTA), the Department of Transportation (DOT) has promulgated a comprehensive set of regulations regarding the highway transportation of high-level radioactive materials. These regulations, under docket numbers HM-164 and HM-164A, establish interstate highways as the preferred routes for the transportation of radioactive materials within and through the states. The regulations also provide a methodology by which a state may select altemative routes. First, the state must establish a ''state routing agency'', defined as an entity authorized to use the state legal process to impose routing requirements on carriers of radioactive material (49 CFR 171.8). Once identified, the state routing agency must select routes in accordance with DOTs Guidelines for Selecting Preferred Highway Routes for Large Quantity Shipments of Radioactive Materials or an equivalent routing analysis. Adjoining states and localities should be consulted on the impact of proposed alternative routes as a prerequisite of final route selection. Lastly, the states must provide written notice to DOT of any alternative route designation before the routes are deemed effective. The purpose of this report is to discuss the ''lessons learned'' by the five states within the southern region that have designated alternative or preferred routes under the regulations of the Department of Transportation (DOT) established for the transportation of radioactive materials. The document was prepared by reviewing applicable federal laws and regulations, examining state reports and documents and contacting state officials and routing agencies involved in making routing decisions. In undertaking this project, the Southern States Energy Board hopes to reveal the process used by states that have designated alternative routes and thereby share their experiences (i.e., lessons learned) with other southern states that have yet to make designations

  16. The use of multi representative learning materials: definitive, macroscopic, microscopic, symbolic, and practice in analyzing students’ concept understanding

    Science.gov (United States)

    Susilaningsih, E.; Wulandari, C.; Supartono; Kasmui; Alighiri, D.

    2018-03-01

    This research aims to compose learning material which contains definitive macroscopic, microscopic and symbolic to analyze students’ conceptual understanding in acid-base learning materials. This research was conducted in eleven grade, natural science class, senior high school 1 (SMAN 1) Karangtengah, Demak province, Indonesia as the low level of students’ conceptual understanding and the high level of students’ misconception. The data collecting technique is by test to assess the cognitive aspect, questionnaire to assess students’ responses to multi representative learning materials (definitive, macroscopic, microscopic, symbolic), and observation to assess students’ macroscopic aspects. Three validators validate the multi-representative learning materials (definitive, macroscopic, microscopic, symbolic). The results of the research show that the multi-representative learning materials (definitive, macroscopic, microscopes, symbolic) being used is valid in the average score 62 of 75. The data is analyzed using the descriptive qualitative method. The results of the research show that 72.934 % students understand, 7.977 % less understand, 8.831 % do not understand, and 10.256 % misconception. In comparison, the second experiment class shows 54.970 % students understand, 5.263% less understand, 11.988 % do not understand, 27.777 % misconception. In conclusion, the application of multi representative learning materials (definitive, macroscopic, microscopic, symbolic) can be used to analyze the students’ understanding of acid-base materials.

  17. Learning Design of Problem Based Learning Model Based on Recommendations of Sintax Study and Contents Issues on Physics Impulse Materials with Experimental Activities

    Directory of Open Access Journals (Sweden)

    Kristia Agustina

    2017-08-01

    Full Text Available This study aims to design learning Problem Based Learning Model based on syntax study recommendations and content issues on Physics Impulse materials through experiments. This research is a development research with Kemp model. The reference for making the learning design is the result of the syntax study and the content of existing PBL implementation problems from Agustina research. This instructional design is applied to the physics material about Impulse done through experimental activity. Limited trials were conducted on the SWCU Physics Education Study Program students group Salatiga, while the validity test was conducted by high school teachers and physics education lecturers. The results of the trial evaluation are limited and the validity test is used to improve the designs that have been made. The conclusion of this research is the design of learning by using PBL model on Impuls material by referring the result of syntax study and the problem content of existing PBL implementation can be produced by learning activity designed in laboratory experiment activity. The actual problem for Impuls material can be used car crash test video at factory. The results of validation tests and limited trials conducted by researchers assessed that the design of learning made by researchers can be used with small revisions. Suggestions from this research are in making learning design by using PBL model to get actual problem can by collecting news that come from newspaper, YouTube, internet, and television.

  18. Preserved statistical learning of tonal and linguistic material in congenital amusia.

    Science.gov (United States)

    Omigie, Diana; Stewart, Lauren

    2011-01-01

    Congenital amusia is a lifelong disorder whereby individuals have pervasive difficulties in perceiving and producing music. In contrast, typical individuals display a sophisticated understanding of musical structure, even in the absence of musical training. Previous research has shown that they acquire this knowledge implicitly, through exposure to music's statistical regularities. The present study tested the hypothesis that congenital amusia may result from a failure to internalize statistical regularities - specifically, lower-order transitional probabilities. To explore the specificity of any potential deficits to the musical domain, learning was examined with both tonal and linguistic material. Participants were exposed to structured tonal and linguistic sequences and, in a subsequent test phase, were required to identify items which had been heard in the exposure phase, as distinct from foils comprising elements that had been present during exposure, but presented in a different temporal order. Amusic and control individuals showed comparable learning, for both tonal and linguistic material, even when the tonal stream included pitch intervals around one semitone. However analysis of binary confidence ratings revealed that amusic individuals have less confidence in their abilities and that their performance in learning tasks may not be contingent on explicit knowledge formation or level of awareness to the degree shown in typical individuals. The current findings suggest that the difficulties amusic individuals have with real-world music cannot be accounted for by an inability to internalize lower-order statistical regularities but may arise from other factors.

  19. Preserved Statistical Learning of Tonal and Linguistic Material in Congenital Amusia

    Directory of Open Access Journals (Sweden)

    Diana eOmigie

    2011-06-01

    Full Text Available Congenital amusia is a lifelong disorder whereby individuals have pervasive difficulties in perceiving and producing music. In contrast, typical individuals display a sophisticated understanding of musical structure, even in the absence of musical training. Previous research has shown that they acquire this knowledge implicitly, through exposure to music’s statistical regularities. The present study tested the hypothesis that congenital amusia may result from a failure to internalize statistical regularities - specifically, lower-order transitional probabilities. To explore the specificity of any potential deficits to the musical domain, learning was examined with both tonal and linguistic material. Participants were exposed to structured tonal and linguistic sequences and, in a subsequent test phase, were required to identify items which had been heard in the exposure phase, as distinct from foils comprising elements that had been present during exposure, but presented in a different temporal order. Amusic and control individuals showed comparable learning, for both tonal and linguistic material, even when the tonal stream included pitch intervals around one semitone. However analysis of binary confidence ratings revealed that amusic individuals have less confidence in their abilities and that their performance in learning tasks may not be contingent on explicit knowledge formation or level of awareness to the degree shown in typical individuals. The current findings suggest that the difficulties amusic individuals have with real-world music cannot be accounted for by an inability to internalize lower-order statistical regularities but may arise from other factors.

  20. Machine learning properties of materials and molecules with entropy-regularized kernels

    Science.gov (United States)

    Ceriotti, Michele; Bartók, Albert; CsáNyi, GáBor; de, Sandip

    Application of machine-learning methods to physics, chemistry and materials science is gaining traction as a strategy to obtain accurate predictions of the properties of matter at a fraction of the typical cost of quantum mechanical electronic structure calculations. In this endeavor, one can leverage general-purpose frameworks for supervised-learning. It is however very important that the input data - for instance the positions of atoms in a molecule or solid - is processed into a form that reflects all the underlying physical symmetries of the problem, and that possesses the regularity properties that are required by machine-learning algorithms. Here we introduce a general strategy to build a representation of this kind. We will start from existing approaches to compare local environments (basically, groups of atoms), and combine them using techniques borrowed from optimal transport theory, discussing the relation between this idea and additive energy decompositions. We will present a few examples demonstrating the potential of this approach as a tool to predict molecular and materials' properties with an accuracy on par with state-of-the-art electronic structure methods. MARVEL NCCR (Swiss National Science Foundation) and ERC StG HBMAP (European Research Council, G.A. 677013).

  1. Coming Full Circle: Reclaiming the Body

    Science.gov (United States)

    Lawrence, Randee Lipson

    2012-01-01

    This volume has explored embodied knowing in formal and informal education, including the university classroom, the workplace, the health professions, and the community. Educators considered the role of intuition, theater, dance, yoga, and outdoor education activities as forms of embodied learning. While the contexts of education were different,…

  2. Determination of the synthetic hydroxyapatite life circle used in dental practice

    Directory of Open Access Journals (Sweden)

    Teodorović Nevenka

    2012-01-01

    Full Text Available Dental materials are specific materials that were developed as a general materials for specific aplication in oral environment. To determinate the functional properties of this materials, we are obligated to use nonstandard approach and specific methods. In this study, two methodologies of material testing-artificial agging and quantification of visual informations for life circle assessment of hydroxyapatite (Hap based materials, were used. Hap was chemically synthetized which produced the material with high purity and crystallinity. Artificially produced Hap is used in stomatology for repair of bone tissue, as a filling for periodontal defects, and as a preservative augmentation for alveolar ridges. In the mean time those materials are used for definitive root canal obturation in endodontic therapy procedure as an apical plug or as complete filling material. This research was focused on the analysis of the bonding properties of the Hap based materials to the root canal walls. The methodology of artificial agging was used together with the quantification of visual informations in purpose to quantify the Hap bonding properties and bonding quality. Experiments were done in-vitro, with the artificia saliva as the agressive agent. The experimental tooths were analyzed by the high resolution optical microscope for the morphological characterisation of the bonding layer. The model for the bond life circle assessment was developed. Hap based materials proved that has favorable properties for the dental use. The presented results proved that the combination of two methodologies (artificial agging and quantification of visual informations could be used as the tool for analyzing the material-dentine interaction.

  3. The learning continuum of ecology based on teachers' opinion about student's level of competence and specific pedagogical learning material

    Science.gov (United States)

    Pramesti, Indah Cahaya; Subali, Bambang

    2017-08-01

    This study aims at designing learning continuum for developing a curriculum based on teachers' opinion about student's level of competence and specific pedagogical learning material on ecological aspect targeted for students of Primary and Secondary Education. This research is a descriptive research using survey methods. The researchers conducted a census by distributing questionnaires that had been validated from the aspects of construct validity and experts judgements to 147 natural science teachers at junior high school and 134 Biology teachers at senior high school as a population throughout 4 regencies and 1 city in Yogyakarta Special Region.. Data analysis techniques used descriptive analysis. In conclusion, teacher's opinion is influenced by curriculum that exist today. According to the opinions of Natural Science teachers at Junior High School, most of the ecological aspects such as characteristics of biomes, characteristics of ecosystems, characteristics of communities, characteristics of populations, etc. should be taught in grade VII with the level of competence: to understand (C2), while Biology teachers at Senior High School state that the ecological aspect should be taught in class X with the level of competence: to understand (C2), apply (C3) and analyze (C4). Teachers should be a privy in the formulation of the curriculum, so they're not only accept and apply the existing curriculum but also give opinions to improve the curriculum, especially in terms of ecology.

  4. Getting Inside Knowledge: The Application of Entwistle's Model of Surface/Deep Processing in Producing Open Learning Materials.

    Science.gov (United States)

    Evans, Barbara; Honour, Leslie

    1997-01-01

    Reports on a study that required student teachers training in business education to produce open learning materials on intercultural communication. Analysis of stages and responses to this assignment revealed a distinction between "deep" and "surface" learning. Includes charts delineating the characteristics of these two types…

  5. Wave Reflection and Loss Characteristics of an Emerged Quarter Circle Breakwater with Varying Seaside Perforations

    Science.gov (United States)

    Binumol, S.; Rao, Subba; Hegde, Arkal Vittal

    2017-09-01

    Breakwaters are one of the most important harbour structures constructed to withstand and dissipate the dynamic energy due to the action of the waves. Due to fast growing need of the universe and advances in technology different types of breakwaters are being developed. Quarter circle breakwater is a new type of breakwater emerged from semi circular breakwater and the first model was developed in Peoples Republic of China (2006). Quarter circle breakwater with perforations posses merits of caisson as well as perforated breakwaters such as low weight, requires less materials, suited for poor soil conditions, easily transported, handled and placed at the site, aesthetically pleasing, cost effective, eco-friendly and stable. Therefore it is necessary to carry out detailed studies on hydrodynamic characteristics to investigate the suitability and applicability of various types of quarter circle breakwaters. The present study investigates the wave reflection and loss characteristics of an emerged seaside perforated quarter circle breakwater of radius 55 cm and with varying ratios of spacing to diameter of perforations, for different water depths and wave conditions. The tests were conducted in the two-dimensional monochromatic wave flume available in Marine Structures laboratory of Department of Applied Mechanics and Hydraulics of National Institute of Technology, Surathkal, Karnataka, India. The results were plotted as non-dimensional graphs and it was observed that the reflection coefficient increases with increase in wave steepness for all values of ratio of height of breakwater structure to water depth. For a constant water depth, wave reflection increases with increase in ratio of spacing to diameter of perforations. It was also found that the loss coefficient decreases with increase in wave steepness for all values of ratio of height of breakwater structure to water depth, and ratio of spacing to diameter of perforations.

  6. PROBLEM BASED LEARNING DALAM MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MATERI PASAR SASARAN

    Directory of Open Access Journals (Sweden)

    Wildan Iltizam Ilhaq

    2016-11-01

    Full Text Available Latar belakang penelitian ini adalah karena kurangnya aktivitas siswa dalam pembelajaran sehingga berpengaruh terhadap hasil belajar siswa yang kurang optimal. Penelitian ini bertujuan untuk meningkatkan aktivitas dan hasil belajar pada materi pasar sasaran siswakelas X Pemasaran 2 SMK N 9 Semarang Tahun Ajaran2015/2016 melalui penerapan model Problem Based Learning.Penelitian ini merupakan Penelitian Tindakan Kelas yang dilaksanakan selama dua siklus, dimana setiap siklus meliputi proses perencanaan, pelaksanaan tindakan, pengamatan dan refleksi. Penelitian ini dilaksanakan di SMK N 9 Semarang dengan subjek penelitian adalah 36 siswa pada kelas X Pemasaran 2 tahun ajaran 2015/2016. Teknik pengumpulan data yang digunakan adalah tes, observasi, dan dokumentasi. Instrumen yang digunakan dalam penelitian ini meliputi lembar observasi aktivitas belajar , lembar diskusi dan soal tes evaluasi. Metode analisis data yang digunakan adalah analisis deskriptif.Hasil penelitian menunjukkan peningkatan aktivitas dan hasil belajar siswa dari siklus I ke siklusI. Pada siklus I rata-rata skor aktivitas siswa mencapai 60,7% dan pada siklus II meningkat 18,46% menjadi 79,16%. Kemudian rata-rata nilai hasil belajar siswa pada siklus I mencapai 75,01 dan pada siklus II meningkat menjadi 83,9. Presentase ketuntasan klasikal hasil belajar siswa pada siklus I mencapai 63,9% dan pada siklus II meningkat 22,21% menjadi 86,11%. The background of this research was because of lack of students in learning activities so that the effect on student learning outcomes are less than optimal. The purpose of this research was to increase activity and outcomes of learning on market target subject of 10th grade Marketing Students 2 in SMK Negeri 9 Semarang 2015/2016 by implementing Problem Based Learning model. This research was a Class Action Research held by two cycles. Each cycle consists of planning, action, observation, and reflection. This research was held in SMK Negeri 9

  7. Detecting anomalous nuclear materials accounting transactions: Applying machine learning to plutonium processing facilities

    International Nuclear Information System (INIS)

    Vaccaro, H.S.

    1989-01-01

    Nuclear materials accountancy is the only safeguards measure that provides direct evidence of the status of nuclear materials. Of the six categories that gives rise to inventory differences, the technical capability is now in place to implement the technical innovations necessary to reduce the human error categories. There are really three main approaches to detecting anomalies in materials control and accountability (MC ampersand A) data: (1) Statistical: numeric methods such as the Page's Test, CUSUM, CUMUF, SITMUF, etc., can detect anomalies in metric (numeric) data. (2) Expert systems: Human expert's rules can be encoded into software systems such as ART, KEE, or Prolog. (3) Machine learning: Training data, such as historical MC ampersand A records, can be fed to a classifier program or neutral net or other machine learning algorithm. The Wisdom ampersand Sense (W ampersand S) software is a combination of approaches 2 and 3. The W ampersand S program includes full features for adding administrative rules and expert judgment rules to the rule base. if desired, the software can enforce consistency among all rules in the rule base

  8. Three-charge black holes on a circle

    International Nuclear Information System (INIS)

    Harmark, Troels; Obers, Niels A.; Roenne, Peter B.; Kristjansson, Kristjan R.

    2007-01-01

    We study phases of five-dimensional three-charge black holes with a circle in their transverse space. In particular, when the black hole is localized on the circle we compute the corrections to the metric and corresponding thermodynamics in the limit of small mass. When taking the near-extremal limit, this gives the corrections to the finite entropy of the extremal three-charge black hole as a function of the energy above extremality. For the partial extremal limit with two charges sent to infinity and one finite we show that the first correction to the entropy is in agreement with the microscopic entropy by taking into account that the number of branes shift as a consequence of the interactions across the transverse circle. Beyond these analytical results, we also numerically obtain the entire phase of non- and near-extremal three- and two-charge black holes localized on a circle. More generally, we find in this paper a rich phase structure, including a new phase of three-charge black holes that are non-uniformly distributed on the circle. All these three-charge black hole phases are found via a map that relates them to the phases of five-dimensional neutral Kaluza-Klein black holes

  9. [A design of refractometer based on blur circle].

    Science.gov (United States)

    Zhang, Yikui; Huang, Shenghai; Ye, Huifang; Zou, Ruitao; Tong, Gengmin; Zhuo, Ran

    2011-03-01

    Design a convenient and stable eye refractometer based on the theory of blur circle. Analyze the retinal blur circle in both Emsly reduced eye model and Liou & Brennan 1997 eye model by ZEMAX. Design the coefficients including PD (pupil diameter) and NO' (length between node point and fovea) with the purpose of improving the accuracy. At last, compare the clinical optometry data from this refractor with the data obtained from optometry hospital in Wenzhou. The blur circle diameters are nearly the same in both reduced eye model and the Liou & Brennan 1997 eye model. With the PD = 4 mm and NO' = 20 mm, the refractor shows a fine accuracy in optometry. The paired t test shows that the myopia group and the astigmatism axial direction group have no statistical difference between the data from the blur circle refractor and the hospital (P > 0.05), while the astigmatism degree group has the result of P = 0.41 which may be caused by the poor cooperation of pediatric patients. 80% of the astigmatism degree data differ from the data from the hospital in less than 0.75D. The blur circle refractor, with the features of convenience and fine accuracy, is promised to be a new style of refractometer in the future.

  10. Effect of stern hull shape on turning circle of ships

    Science.gov (United States)

    Jaswar, Maimun, A.; Wahid, M. A.; Priyanto, A.; Zamani, Pauzi, Saman

    2012-06-01

    Many factors such as: stern hull shape, length, draught, trim, propulsion system and external forces affecting the drift angle influence rate of turn and size of turning circle of ships. This paper discusses turning circle characteristics of U and V stern hull shape of Very Large Crude Oil Carrier (VLCC) ships. The ships have same principal dimension such as length, beam, and draught. The turning circle characteristics of the VLCC ships are simulated at 35 degree of rudder angle. In the analysis, firstly, turning circle performance of U-type VLCC ship is simulated. In the simulation, initial ship speed is determined using given power and rpm. Hydrodynamic derivatives coefficients are determined by including effect of fullness of aft run. Using the obtained, speed and hydrodynamic coefficients, force and moment acting on hull, force and moment induced by propeller, force and moment induced by rudder are determined. Finally, ship trajectory, ratio of speed, yaw angle and drift angle are determined. Results of simulation results of the VLCC ship are compared with the experimental one as validation. Using the same method, V-type VLCC is simulated and the simulation results are compared with U-type VLCC ship. Results shows the turning circle of U-type is larger than V-type due to effect stern hul results of simulation are.

  11. A Retrospective View of English Language Learning Materials Produced in Slovenia from 1945 to the Present

    Directory of Open Access Journals (Sweden)

    Janez Skela

    2013-05-01

    Full Text Available Taking a historical perspective, this article documents the development of domestically produced English Language Learning (ELL materials in the period between 1945 and 2013. To this end, reference is made to milestones that marked shifts in linguistic and foreign language teaching paradigms, including aspects of Method and the underlying conception of language. The analysis will draw on aspects of Method in relation to language policy documents (i.e., curricula and the course books in which these principles are embodied. Through the analysis of these factors we trace the evolution from Grammar–Translation methodology to Communicative Language Teaching in locally produced textbooks which are representative of various historical periods.

  12. Introduction of a Nonfermented Bread-like Food as a Learning Material in Home Economics Education

    OpenAIRE

    冨永, 美穂子; 小林, 京子; 森, 敏昭; 佐藤, 一精

    1999-01-01

    An attempt was made to prepare a nonfermented bread-like food usable as home economics teaching and learning material. The new receipe could be a model for showing the leavening process of bread by use of sodium bicarbonate and yogurt as an acidifying agent. In this study, the nonfermented bread was used in the class by forty second grade high school students on the theme of "Infant foods — focusing on snacks— " The students favorably evaluated the bread-like food as being easy to prepare...

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

    Science.gov (United States)

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

    2017-07-25

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

  14. Developing Needs Analysis Based-Reading Comprehension Learning Materials: A Study on the Indonesian Language Study Program Students

    Directory of Open Access Journals (Sweden)

    S. Salam

    2017-08-01

    Full Text Available The purpose of this research was to describe the need of development of 'Reading Comprehension' teaching materials to students and lecturers of Indonesian Language and Literature Education Department, Gorontalo. This research is included in the research and development to develop educational products in the form of teaching materials. Mixed research design was used in this study to explore the data needs of the development of reading materials learning. Quantitative data was obtained from the responses of 36 respondents and 2 lecturers of the Reading subjects on the questionnaire needs analysis and questionnaire of teaching material analysis that is being used today. Likert Scale was used in questionnaire of needs analysis seen from 7 aspects, namely: content of teaching material, reading strategy, text type, text genre, text topic, learning activity, and evaluation of learning (81 items and questionnaire of teaching material analysis that was being used that amounted to 5 aspects, namely: the content of teaching materials, organization of teaching materials, language, layout, and completeness of teaching material support (31 items. Qualitative data were obtained from open questions about the experiences of students and lecturers in reading learning in the same questionnaire, as well as content analysis of the material being used. The results showed that the requirement of development of teaching materials, students and lecturers assessed 63 items (77.78% in the required category, and 18 items (22.22% with the required categories. Then, the teaching materials currently in use still lack the aspects of the content, the text type, the text genre, the text topic, and the evaluation of each learning unit. Details of the results obtained 4 items (12.90% as low category, 22 items (70.97% as enough category, and 5 items (16.13% as high category.

  15. PENGEMBANGAN LKS BERBASIS PROJECT BASED LEARNING UNTUK PEMBELAJARAN MATERI SEGITIGA DI KELAS VII

    Directory of Open Access Journals (Sweden)

    Dian Novita

    2016-06-01

    Full Text Available Penelitian ini merupakan penelitian pengembangan yang bertujuan untuk (1mengetahui karakteristik LKS berbasis Project Based Learning (PjBL yang valid dan praktis dalam pembelajaran materi segitiga di kelas VII; (2mengetahui efek potensial penggunaan LKS berbasis PjBL terhadap hasil belajar siswa dalam pembelajaran materi segitiga di kelas VII. Metode penelitian pengembangan yang digunakan adalah model  ADDIE (Analysis, Design, Development, Implementation, and Evaluation. Teknik pengumpulan data yang digunakan adalah walkthrough, tes hasil belajar dan angket. Dari tes hasil belajar, diperoleh bahwa sebesar 82,5% siswa telah mencapai kategori tuntas dan 17,5% belum tuntas dengan KKM 75. Hasil angket respon siswa menunjukkan bahwa untuk pelaksanaan pembelajaran menggunakan LKS berbasis PjBL telah mencapai kriteria kepraktisan. Kemudian untuk LKS berbasis PjBL yang telah didesain, divalidasi oleh beberapa pakar, kemudian direvisi berdasarkan saran dari para pakar tersebut. LKS yang telah direvisi tersebut dianggap telah memenuhi kriteria kevalidan dan kepraktisan sehingga dapat digunakan dalam pembelajaran materi segitiga di kelas VII. Kesimpulan dari penelitian ini adalah (1 LKS bebasis PjBL yang dikembangkan valid, tergambar dari konten (sesuai dengan kurikulum untuk materi segitiga, konstruk (sesuai dengan prinsip PjBL, dan bahasa (sesuai dengan ejaan yang disempurnakan (EYD. Kepraktisan tergambar dari proses kerja siswa dalam melaksanakan LKS dan hasil angket respon siswa terhadap pembelajaran menggunakan LKS berbasis PjBL; (2 dari hasil latihan yang dikerjakan oleh siswa, LKS berbasis PjBL memiliki efek potensial terhadap hasil belajar, yakni sebanyak 33 siswa termasuk kategori tuntas (82,5% dan 7 orang belum tuntas (17,5%, dengan KKM 75. Kata Kunci : LKS, Project Based Learning DOI: http://dx.doi.org/10.22342/jpm.10.2.3626.1-12

  16. Circles Disturbed The Interplay of Mathematics and Narrative

    CERN Document Server

    Doxiadis, Apostolos

    2012-01-01

    Circles Disturbed brings together important thinkers in mathematics, history, and philosophy to explore the relationship between mathematics and narrative. The book's title recalls the last words of the great Greek mathematician Archimedes before he was slain by a Roman soldier--"Don't disturb my circles"--words that seem to refer to two radically different concerns: that of the practical person living in the concrete world of reality, and that of the theoretician lost in a world of abstraction. Stories and theorems are, in a sense, the natural languages of these two worlds--stories represent

  17. The core of C*-algebras associated with circle maps

    DEFF Research Database (Denmark)

    Johannesen, Benjamin Randeris

    2017-01-01

    The relationship between dynamical systems and operator algebras is one that has been fruitful and mutually beneficial and is by now both well-established, -aged and -matured. This thesis contribute in developing the relationship between dynamical systems, groupoids and operator algebra for circle...... dynamics. Another aspect of this thesis are the results solely about dynamics on the unit circle. The reader is supposed to be well versed in C*-algebras and K-theory (and classification). The reader is not assumed to be familiar with dynamical system theory nor with groupoids....

  18. The Existence and Structure of Rotational Systems in the Circle

    OpenAIRE

    Ramanathan, Jayakumar

    2018-01-01

    By a rotational system, we mean a closed subset X of the circle, T=R/Z, together with a continuous transformation f:X→X with the requirements that the dynamical system (X,f) be minimal and that f respect the standard orientation of T. We show that infinite rotational systems (X,f), with the property that map f has finite preimages, are extensions of irrational rotations of the circle. Such systems have been studied when they arise as invariant subsets of certain specific mappings, F:T→T. Beca...

  19. CP violation in Z circle → τ+τ-

    International Nuclear Information System (INIS)

    Lopez, J.M.

    1998-01-01

    Test of CP invariance in the reaction Z circle → τ + τ - on the Z circle peak is performed using the data sample recorded by the four Collaboration at LEP and SLD. From the non-observation of CP violation upper limits on the real (vertical stroke Re(d r W ) vertical stroke) and imaginary (vertical stroke Im(d r W ) vertical stroke) parts of the weak dipole moment of the τ lepton at 95% C.L. are derived. Results on measurements on weak magnetic moment is also reported. (orig.)

  20. A simple algorithm for computing the smallest enclosing circle

    DEFF Research Database (Denmark)

    Skyum, Sven

    1991-01-01

    Presented is a simple O(n log n) algorithm for computing the smallest enclosing circle of a convex polygon. It can be easily extended to algorithms that compute the farthest-and the closest-point Voronoi diagram of a convex polygon within the same time bound.......Presented is a simple O(n log n) algorithm for computing the smallest enclosing circle of a convex polygon. It can be easily extended to algorithms that compute the farthest-and the closest-point Voronoi diagram of a convex polygon within the same time bound....

  1. Environmental Assessment: Disposition of Chiefs’ Circle Residential Structures

    Science.gov (United States)

    2012-04-27

    five structures ranged from Page 4 of 5  $200,000 (with bricks removed) to $500,000 (with bricks intact). Mike Ford, CEO of NewTown Macon, echoed Mr...feasibility 25-Jul-08 and practicality of moving the Chief’s Circle duplexes Mike Ford NewTown Macon 23-Jul-08 478-722-9909 President of NewTown Macon...Daniel.Chavira@ Gave a tour of Chiefs’ Circle huntcompanies.com Not interested in using the houses Bob Sharples RAFB 26-Oct-10 robert.sharples

  2. Construction of Multimedia Courseware and Web-based E-Learning Courses of "Biomedical Materials".

    Science.gov (United States)

    Xiaoying, Lu; Jian, He; Tian, Qin; Dongxu, Jiang; Wei, Chen

    2005-01-01

    In order to reform the traditional teaching methodology and to improve the teaching effect, we developed new teaching system for course "Biomedical Materials" in our university by the support of the computer technique and Internet. The new teaching system includes the construction of the multimedia courseware and web-based e-learning courses. More than 2000 PowerPoint slides have been designed and optimized and flash movies for several capitals are included. On the basis of this multimedia courseware, a web-based educational environment has been established further, which includes course contents, introduction of the teacher, courseware download, study forum, sitemap of the web, and relative link. The multimedia courseware has been introduced in the class teaching for "Biomedical Materials" for 6 years and a good teaching effect has been obtained. The web-based e-learning courses have been constructed for two years and proved that they are helpful for the students by their preparing and reviewing the teaching contents before and after the class teaching.

  3. Development of innovative classroom instruction material for enhancing creative teaching and learning nuclear topics: A proposal

    International Nuclear Information System (INIS)

    Puse, Judeza S.; Awata, Takaaki; Atobe, Kozo

    2005-01-01

    The role of education all over the world is becoming more and more significant and requires an in depth study since the life of the people is advanced, expanded and complicated. Educators are once again asked to address problems which have arisen within their own society. Thus, the search for ways to improve quality of education is global especially in line with nuclear science and technology. One area of focus is that managing and promoting learning inside the classroom, how teacher's utilized instructional materials were such an issue. Indeed, qualifications and resources are not the only factors that influence teachers' effectiveness, equally important are teachers' motivation, commitment, resourcefulness, innovativeness and creativeness in dealing with instructional materials. Lack of these things will produce poor attendance and unprofessional attitudes towards students. This paper aims to present a proposal on the use of innovative teaching device from the sample photographs as a result of the experiment taken at Kyoto University Research Reactor Institute (KURRI) where samples were treated with gamma rays from a radioactive source 60 Co and lately exposed to photographic giving rise to understanding of photons emitted by radioactive material in a form of electromagnetic waves and later converted into visible light in a more authentic and simplified manners. As a consequent, this proposal was made to enhance teaching and encourage science teachers to exert great effort to develop instructional materials specifically in this area that requires the concretization of concepts which could not be detected by human senses. (author)

  4. Hybrid attribute-based recommender system for learning material using genetic algorithm and a multidimensional information model

    Directory of Open Access Journals (Sweden)

    Mojtaba Salehi

    2013-03-01

    Full Text Available In recent years, the explosion of learning materials in the web-based educational systems has caused difficulty of locating appropriate learning materials to learners. A personalized recommendation is an enabling mechanism to overcome information overload occurred in the new learning environments and deliver suitable materials to learners. Since users express their opinions based on some specific attributes of items, this paper proposes a hybrid recommender system for learning materials based on their attributes to improve the accuracy and quality of recommendation. The presented system has two main modules: explicit attribute-based recommender and implicit attribute-based recommender. In the first module, weights of implicit or latent attributes of materials for learner are considered as chromosomes in genetic algorithm then this algorithm optimizes the weights according to historical rating. Then, recommendation is generated by Nearest Neighborhood Algorithm (NNA using the optimized weight vectors implicit attributes that represent the opinions of learners. In the second, preference matrix (PM is introduced that can model the interests of learner based on explicit attributes of learning materials in a multidimensional information model. Then, a new similarity measure between PMs is introduced and recommendations are generated by NNA. The experimental results show that our proposed method outperforms current algorithms on accuracy measures and can alleviate some problems such as cold-start and sparsity.

  5. Online self-assessment materials: do these make a difference to student learning?

    Directory of Open Access Journals (Sweden)

    Mary Peat

    2000-12-01

    Full Text Available In our changing world where university students are demanding a greater say in their tertiary education, and in particular are demanding a greater flexibility in the way they receive their instruction, it is imperative that we investigate and experiment with course delivery strategies that fulfil these expectations. Online delivery of learning materials is not new, nor is it the panacea for all problems, but it does offer certain advantages for both teachers and students. The flexibility of using the Web may suit certain teaching activities, but more importantly may suit the learning styles and commitments of the students. In the current economic climate students may have to juggle university activities with employment, potentially missing some of the structured teaching and learning sessions. In addition they may not have time to use campus-based course materials or seek face-to-face assistance from staff. An Australian benchmark survey of the first-year experience (Mclnnis, James and McNaught, 1995, found the pressures of part-time work made it extremely difficult for some students to fulfil course expectations. A 1998 survey of firstyear science students at the University of Sydney revealed that 54 per cent of full-time students are undertaking some form of employment, with 31 per cent working ten hours or more per week during semester, and 14 per cent working over fifteen hours per week (Peat and Franklin, 1998. A small shift away from courses comprising all face-to-face activities to courses with a mix of face-to-face and online activities has the potential to help those very students who may otherwise give up when the pressure of time and other commitments seems too difficult to cope with

  6. Perspective: Web-based machine learning models for real-time screening of thermoelectric materials properties

    Science.gov (United States)

    Gaultois, Michael W.; Oliynyk, Anton O.; Mar, Arthur; Sparks, Taylor D.; Mulholland, Gregory J.; Meredig, Bryce

    2016-05-01

    The experimental search for new thermoelectric materials remains largely confined to a limited set of successful chemical and structural families, such as chalcogenides, skutterudites, and Zintl phases. In principle, computational tools such as density functional theory (DFT) offer the possibility of rationally guiding experimental synthesis efforts toward very different chemistries. However, in practice, predicting thermoelectric properties from first principles remains a challenging endeavor [J. Carrete et al., Phys. Rev. X 4, 011019 (2014)], and experimental researchers generally do not directly use computation to drive their own synthesis efforts. To bridge this practical gap between experimental needs and computational tools, we report an open machine learning-based recommendation engine (http://thermoelectrics.citrination.com) for materials researchers that suggests promising new thermoelectric compositions based on pre-screening about 25 000 known materials and also evaluates the feasibility of user-designed compounds. We show this engine can identify interesting chemistries very different from known thermoelectrics. Specifically, we describe the experimental characterization of one example set of compounds derived from our engine, RE12Co5Bi (RE = Gd, Er), which exhibits surprising thermoelectric performance given its unprecedentedly high loading with metallic d and f block elements and warrants further investigation as a new thermoelectric material platform. We show that our engine predicts this family of materials to have low thermal and high electrical conductivities, but modest Seebeck coefficient, all of which are confirmed experimentally. We note that the engine also predicts materials that may simultaneously optimize all three properties entering into zT; we selected RE12Co5Bi for this study due to its interesting chemical composition and known facile synthesis.

  7. Material matters for learning in virtual networks: a case study of a professional learning programme hosted in a Google+ online community

    Directory of Open Access Journals (Sweden)

    Aileen Ackland

    2015-08-01

    Full Text Available In this paper, we draw on Actor–Network Theories (ANT to explore how material components functioned to create gateways and barriers to a virtual learning network in the context of a professional development module in higher education. Students were practitioners engaged in family learning in different professional roles and contexts. The data comprised postings in the Google+ community, email correspondence, meeting notes, feedback submitted at the final workshop and post-module evaluation forms. Our analysis revealed a complex set of interactions, and suggests multiple ways human actors story their encounters with non-human components and the effects these have on the learning experience. The aim of this paper is to contribute to a more holistic understanding of the components and dynamics of social learning networks in the virtual world and consider the implications for the design of online learning for continuous professional development (CPD.

  8. Types of the cerebral arterial circle (circle of Willis in a Sri Lankan Population

    Directory of Open Access Journals (Sweden)

    Gunasekera WSL

    2011-01-01

    Full Text Available Abstract Background The variations of the circle of Willis (CW are clinically important as patients with effective collateral circulations have a lower risk of transient ischemic attack and stroke than those with ineffective collaterals. The aim of the present cadaveric study was to investigate the anatomical variations of the CW and to compare the frequency of prevalence of the different variations with previous autopsy studies as variations in the anatomy of the CW as a whole have not been studied in the Indian subcontinent. Methods The external diameter of all the arteries forming the CW in 225 normal Sri Lankan adult cadaver brains was measured using a calibrated grid to determine the prevalence in the variation in CW. Chisquared tests and a correspondence analysis were performed to compare the relative frequencies of prevalence of anatomical variations in the CW across 6 studies of diverse ethnic populations. Results We report 15 types of variations of CW out of 22 types previously described and one additional type: hypoplastic precommunicating part of the anterior cerebral arteries (A1 and contralateral posterior communicating arteries (PcoA 5(2%. Statistically significant differences (p Conclusion The present study reveals that there are significant variations in the CW among intra and inter ethnic groups (Caucasian, African and Asian: Iran and Sri Lanka dominant populations, and warrants further studies keeping the methods of measurements, data assessment, and the definitions of hypoplasia the same.

  9. Safety, dose optimisation and security: the quadrature of the circle

    Energy Technology Data Exchange (ETDEWEB)

    Hardeman, Frank; Vermeersch, Fernand [Belgian Nuclear Research Centre (SCK.CEN), Boeretang 200, BE-2400 Mol (Belgium)

    2010-07-01

    The growing concern for potential terrorist acts has lead to a number of new ideas about storing radiological and nuclear materials that are not always compatible with existing practices or infrastructures. This is valid in routine circumstances, but especially poses problems in case of accidents. As such, the management of nuclear safety, radiological protection and security within an evolving world such as a nuclear research centre sometimes looks like implementing the quadrature of the circle. International guidance exists, but is not always easily converted into an adequate policy comprehensible to all levels in a plant, from management to the work floor. Some examples. 1. infrastructure related problems: from a security point of view, fuels are better stored in the heart of a protected zone, while in case of criticality, fire... a more peripheral location is appropriate. 2. Safety related problems: Protection infrastructure may lead to difficulties of evacuation in case of emergencies; access limitations may be a burden in the management of safety interventions, maintenance... 3. Administrative contradictions: inventories of fuel storages and high active sealed sources are a cornerstone of inspections and verifications; yet, this information is a treasure for terrorists aiming at actions to obtain special materials. 4. Dose management: measures taken to secure sources may lead to a dose increase (e.g. labelling of old sources). However, the main difficulty is related to the 'cultural' aspect. There are synergies between safety culture, 'ALARA' culture and security culture. An individual aspect of desirable behaviour (e.g. questioning attitude), complemented with an organisational dimension (e.g. training, raising awareness) are obviously common. The objective is also in line: to avoid reduction of well-being of people, to protect the environment, to prevent damage to facilities. The main difficulties arise however because of the fundamental

  10. Safety, dose optimisation and security: the quadrature of the circle

    International Nuclear Information System (INIS)

    Hardeman, Frank; Vermeersch, Fernand

    2010-01-01

    The growing concern for potential terrorist acts has lead to a number of new ideas about storing radiological and nuclear materials that are not always compatible with existing practices or infrastructures. This is valid in routine circumstances, but especially poses problems in case of accidents. As such, the management of nuclear safety, radiological protection and security within an evolving world such as a nuclear research centre sometimes looks like implementing the quadrature of the circle. International guidance exists, but is not always easily converted into an adequate policy comprehensible to all levels in a plant, from management to the work floor. Some examples. 1. infrastructure related problems: from a security point of view, fuels are better stored in the heart of a protected zone, while in case of criticality, fire... a more peripheral location is appropriate. 2. Safety related problems: Protection infrastructure may lead to difficulties of evacuation in case of emergencies; access limitations may be a burden in the management of safety interventions, maintenance... 3. Administrative contradictions: inventories of fuel storages and high active sealed sources are a cornerstone of inspections and verifications; yet, this information is a treasure for terrorists aiming at actions to obtain special materials. 4. Dose management: measures taken to secure sources may lead to a dose increase (e.g. labelling of old sources). However, the main difficulty is related to the 'cultural' aspect. There are synergies between safety culture, 'ALARA' culture and security culture. An individual aspect of desirable behaviour (e.g. questioning attitude), complemented with an organisational dimension (e.g. training, raising awareness) are obviously common. The objective is also in line: to avoid reduction of well-being of people, to protect the environment, to prevent damage to facilities. The main difficulties arise however because of the fundamental differences being

  11. Keefektifan setting TPS dalam pendekatan discovery learning dan problem-based learning pada pembelajaran materi lingkaran SMP

    Directory of Open Access Journals (Sweden)

    Rahmi Hidayati

    2017-05-01

    The purpose of this study was to describe the effectiveness of setting Think Pair Share (TPS in the approach to discovery learning and problem-based learning in terms of student achievement, mathematical communication skills, and interpersonal skills of the student.  This study was a quasi-experimental study using the pretest-posttest nonequivalent group design. The research population comprised all Year VIII students of SMP Negeri 1 Yogyakarta. The research sample was randomly selected from eight classes, two classes were elected. The instrument used in this study is the learning achievement test, a test of mathematical communication skills, and interpersonal skills student questionnaires. To test the effectiveness of setting Think Pair Share (TPS in the approach to discovery learning and problem-based learning, the one sample t-test was carried out. Then, to investigate the difference in effectiveness between the setting Think Pair Share (TPS in the approach to discovery learning and problem-based learning, the Multivariate Analysis of Variance (MANOVA was carried out. The research findings indicate that the setting TPS discovery approach to learning and problem-based approach to learning (PBL is effective in terms of learning achievement, mathematical communication skills, and interpersonal skills of the students. No difference in effectiveness between setting TPS discovery approach to learning and problem-based learning (PBL in terms of learning achievement, mathematical communication skills, and interpersonal skills of the students. Keywords: TPS setting in discovery learning approach, in problem-based learning, academic achievement, mathematical communication skills, and interpersonal skills of the student

  12. Inclusive Teaching Circles: Mechanisms for Creating Welcoming Classrooms

    Science.gov (United States)

    Moore, Sharon; Wallace, Sherri L.; Schack, Gina; Thomas, M. Shelley; Lewis, Linda; Wilson, Linda; Miller, Shawnise; D'Antoni, Joan

    2010-01-01

    This essay examines the Inclusive Teaching Circle (ITC) as a mechanism for faculty development in creating instructional tools that embrace an inclusive pedagogy reflecting diversity, cultural competence and social justice. We describe one group's year-long participation in an ITC at a large, metropolitan research university in the south. Next, we…

  13. Scaling laws for mode lockings in circle maps

    International Nuclear Information System (INIS)

    Cvitanovic, P.; Shraiman, B.; Soederberg, B.

    1985-06-01

    The self-similar structure of mode lockings for circle maps is studied by means of the associated Farey trees. We investigate numerically several classes of scaling relations implicit in the Farey organization of mode lockings and discuss the extent to which they lead to universal scaling laws. (orig.)

  14. Penerapan Model Beyond Centers and Circle Tme SD Kelas Satu

    OpenAIRE

    FITRIA, EVY

    2014-01-01

    Penelitian bertujuan mengkaji pelaksanaan penerapan model pembelajaran Sentra Model pembelajaran sentra (Beyond Centers and Circle Time) dilaksanakan pada siswa kelas satu SD Islam Jayawinata Kota Tangerang 2013. Penelitian menggunakan metode kualitatitf dengan analisis model Miles and Huberman. Hasil penelitian mengungkapkan bahwa kegiatan SD kelas satu menggunakan model pembelajaran sentra atau BCCT pada tahun ajaran baru sehingga guru memiliki panduan ketika membuat rencana pembelajaran; p...

  15. Uncertainty budget for optical coordinate measurements of circle diameter

    DEFF Research Database (Denmark)

    Morace, Renate Erica; Hansen, Hans Nørgaard; De Chiffre, Leonardo

    2004-01-01

    An uncertainty analysis for circle diameter measurements using a coordinate measuring machine (CMM) equipped with an optical probe is presented in this paper. A mathematical model for data evaluation and uncertainty assessment was formulated in accordance with Guide to the Expression of Uncertain...

  16. Full circle? Renato Amato's literary antipodes 1 | Hill | Italian Studies ...

    African Journals Online (AJOL)

    Il titolo stesso dell'opera di Amato The Full Circle of the Travelling Cuckoo (1967) rivela il senso di dislocazione dello scrittore migrante ma, al contempo, ne indica la capacità di riconciliarsi con il proprio difficile passato e di adattarsi alla sua patria adottiva, la Nuova Zelanda. Amato (1928-1964) ha dato un contribuito ...

  17. The Quality Control Circle: Is It for Education?

    Science.gov (United States)

    Land, Arthur J.

    From its start in Japan after World War II, the Quality Control Circle (Q.C.) approach to management and organizational operation evolved into what it is today: people doing similar work meeting regularly to identify, objectively analyze, and develop solutions to problems. The Q.C. approach meets Maslow's theory of motivation by inviting…

  18. Revisiting Cyberbullying in Schools Using the Quality Circle Approach

    Science.gov (United States)

    Paul, Simone; Smith, Peter K.; Blumberg, Herbert H.

    2012-01-01

    An earlier study reported the use of Quality Circles (QC) in a UK school in the context of understanding and reducing bullying and cyberbullying. Here, we report further work in the same school setting. The QC approach allows explorative analysis of problems in school settings, whereby students embark on a problem-solving exercise over a period of…

  19. Is Russell's vicious circle principle false or meaningless?

    NARCIS (Netherlands)

    Fleischhacker, L.E.

    1979-01-01

    P. Vardy asserts the thesis that the vicious circle principle has the same structure as Russell's paradox. But structure is not the thing itself. It is the thing objectivated from the wiewpoint of a mathematician. So this structure can be expressed in a mathematical formalism, e. g. the Λ-calculus.

  20. Random walks of a quantum particle on a circle

    International Nuclear Information System (INIS)

    Fjeldsoe, N.; Midtdal, J.; Ravndal, F.

    1987-07-01

    When the quantum planar rotor is put on a lattice, its dynamics can be approximated by random walks on a circle. This allows for fast and accurate Monto Carlo simulations to determine the topological charge of different configurations of the system and thereby the Θ-dependency of the lowest energy levels

  1. Circle Maps and the Devil's Staircase in a Chemical Oscillator

    DEFF Research Database (Denmark)

    Brøns, Morten; Gross, P.; Bar-Eli, K.

    1996-01-01

    We explain numerical results on a periodically perturbed Oregonator by Markman and Bar-Eli (J. Phys. Chem. 98 12248 (1994)). If the dynamics of the system is governed by a family of diffeomorphisms of a circle with a Devil's staircase one will expect the observed behavior, i.e. (1) Only periodic...

  2. Pengembangan Modul Pembelajaran Fisika Berbasis Problem Based Learning (PBL pada Materi Gelombang Bunyi untuk Siswa SMA Kelas XII

    Directory of Open Access Journals (Sweden)

    Tri Anita Nur Hasanah

    2017-03-01

    Full Text Available The 2013 curriculum emphasizes on Scientific Approach taht tie topic with real context. Either learning model that leads to Scientific Approach that is Problem Based Learning (PBL. So that need to prepare appropriate teaching material to support learning model PBL one of them module independent teaching topic for learners. The aim of these research is describe the Learning Module which is developed that is physic learning module based on PBL of the topic sound wave for senior high school grade XII and examine its feasibility. This development research used 4-D Thiagarajan with modified model. This research has been done in three stages such as define, design, and develop which are restricted until the limited try out. The data collection is used questionnaire. The module validation by 4 validators and limited try out to 10 students. The result of research drawn that material aspect is 3,59 with the suitable criterion, presentation aspect is 3,9 with the suitable criterion, language aspect is 3,41 with the suitable criterion, and the limited try out result got 3,6 with an appropriate criterion. In conclusion, physic learning module based on PBL in sound wave material for senior high school grade XII is applicable. Keywords: Physic Learning Module, Problem Based Learning (PBL, Topic sound wave Pada kurikulum 2013 menekankan pada Scientific Approach yang mengaitkan materi dengan konteks dunia nyata. Salah satu model pembelajaran yang mengarah ke Scientific Approach yaitu Problem Based Learning (PBL. Sehingga perlu dipersiapkan bahan ajar yang tepat untuk mendukung model pembelajaran PBL salah satunya modul yang merupakan bahan ajar mandiri bagi peserta didik. Tujuan penelitian ini adalah mendeskripsikan pengembangan modul yaitu modul pembelajaran fisika berbasis PBL pada materi Gelombang Bunyi untuk siswa SMA kelas XII dan menguji kelayakannya.Penelitian pengembangan menggunakan model 4-D Thiagarajan yang sudah di modifikasi. Penelitian ini

  3. STEM LEARNING IN MATERIAL OF TEMPERATURE AND ITS CHANGE TO IMPROVE SCIENTIFIC LITERACY OF JUNIOR HIGH SCHOOL

    OpenAIRE

    N. Khaeroningtyas; A. Permanasari; I. Hamidah

    2016-01-01

    This research aims to determine the improvement of students’ scientific literacy after STEM (Science, Technology, Engineering, and Mathematics) learning using 6E Learning by DesignTM Model on temperature and its changes material. The research was conducted in SMP Negeri (State Junior High School) 1 Bumiayu in the academic year 2015/2016. The method used was quasi-experimental design with The Matching Only - pretest posttest control group design. This study used two group of experiment group o...

  4. Amazingly resilient Indigenous people! Using transformative learning to facilitate positive student engagement with sensitive material.

    Science.gov (United States)

    Jackson, Debra; Power, Tamara; Sherwood, Juanita; Geia, Lynore

    2013-12-01

    If health professionals are to effectively contribute to improving the health of Indigenous people, understanding of the historical, political, and social disadvantage that has lead to health disparity is essential. This paper describes a teaching and learning experience in which four Australian Indigenous academics in collaboration with a non-Indigenous colleague delivered an intensive workshop for masters level post-graduate students. Drawing upon the paedagogy of Transformative Learning, the objectives of the day included facilitating students to explore their existing understandings of Indigenous people, the impact of ongoing colonisation, the diversity of Australia's Indigenous people, and developing respect for alternative worldviews. Drawing on a range of resources including personal stories, autobiography, film and interactive sessions, students were challenged intellectually and emotionally by the content. Students experienced the workshop as a significant educational event, and described feeling transformed by the content, better informed, more appreciative of other worldviews and Indigenous resilience and better equipped to contribute in a more meaningful way to improving the quality of health care for Indigenous people. Where this workshop differs from other Indigenous classes was in the involvement of an Indigenous teaching team. Rather than a lone academic who can often feel vulnerable teaching a large cohort of non-Indigenous students, an Indigenous teaching team reinforced Indigenous authority and created an emotionally and culturally safe space within which students were allowed to confront and explore difficult truths. Findings support the value of multiple teaching strategies underpinned by the theory of transformational learning, and the potential benefits of facilitating emotional as well as intellectual student engagement when presenting sensitive material.

  5. The cognitive impact of interactive design features for learning complex materials in medical education.

    Science.gov (United States)

    Song, Hyuksoon S; Pusic, Martin; Nick, Michael W; Sarpel, Umut; Plass, Jan L; Kalet, Adina L

    2014-02-01

    To identify the most effective way for medical students to interact with a browser-based learning module on the symptoms and neurological underpinnings of stroke syndromes, this study manipulated the way in which subjects interacted with a graphical model of the brain and examined the impact of functional changes on learning outcomes. It was hypothesized that behavioral interactions that were behaviorally more engaging and which required deeper consideration of the model would result in heightened cognitive interaction and better learning than those whose manipulation required less deliberate behavioral and cognitive processing. One hundred forty four students were randomly assigned to four conditions whose model controls incorporated features that required different levels of behavioral and cognitive interaction: Movie (low behavioral/low cognitive, n = 40), Slider (high behavioral/low cognitive, n = 36), Click (low behavioral/high cognitive, n = 30), and Drag (high behavioral/high cognitive, n = 38). Analysis of Covariates (ANCOVA) showed that students who received the treatments associated with lower cognitive interactivity (Movie and Slider) performed better on a transfer task than those receiving the module associated with high cognitive interactivity (Click and Drag, partial eta squared = .03). In addition, the students in the high cognitive interactivity conditions spent significantly more time on the stroke locator activity than other conditions (partial eta squared = .36). The results suggest that interaction with controls that were tightly coupled with the model and whose manipulation required deliberate consideration of the model's features may have overtaxed subjects' cognitive resources. Cognitive effort that facilitated manipulation of content, though directed at the model, may have resulted in extraneous cognitive load, impeding subjects in recognizing the deeper, global relationships in the materials. Instructional designers must, therefore, keep in

  6. Visual paired-associate learning: in search of material-specific effects in adult patients who have undergone temporal lobectomy.

    Science.gov (United States)

    Smith, Mary Lou; Bigel, Marla; Miller, Laurie A

    2011-02-01

    The mesial temporal lobes are important for learning arbitrary associations. It has previously been demonstrated that left mesial temporal structures are involved in learning word pairs, but it is not yet known whether comparable lesions in the right temporal lobe impair visually mediated associative learning. Patients who had undergone left (n=16) or right (n=18) temporal lobectomy for relief of intractable epilepsy and healthy controls (n=13) were administered two paired-associate learning tasks assessing their learning and memory of pairs of abstract designs or pairs of symbols in unique locations. Both patient groups had deficits in learning the designs, but only the right temporal group was impaired in recognition. For the symbol location task, differences were not found in learning, but again a recognition deficit was found for the right temporal group. The findings implicate the mesial temporal structures in relational learning. They support a material-specific effect for recognition but not for learning and recall of arbitrary visual and visual-spatial associative information. Copyright © 2010 Elsevier Inc. All rights reserved.

  7. Computer-assisted Biology Learning Materials: Designing and Developing an Interactive CD on Spermatogenesis

    Science.gov (United States)

    Haviz, M.

    2018-04-01

    The purpose of this article is to design and develop an interactive CD on spermatogenesis. This is a research and development. Procedure of development is making an outline of media program, making flowchart, making story board, gathering of materials, programming and finishing. The quantitative data obtained were analyzed by descriptive statistics. Qualitative data obtained were analyzed with Miles and Huberman techniques. The instrument used is a validation sheet. The result of CD design with a Macro flash MX program shows there are 17 slides generated. This prototype obtained a valid value after a self-review technique with many revisions, especially on sound and programming. This finding suggests that process-oriented spermatogenesis can be audio-visualized into a more comprehensive form of learning media. But this interactive CD product needs further testing to determine consistency and resistance to revisions.

  8. Does distance e-learning work? A comparison between distance and face-to-face learners using e-learning materials

    Directory of Open Access Journals (Sweden)

    Sara de Freitas

    2003-12-01

    Full Text Available This study compares continual assessment data, intake numbers, retention numbers and final examination grades of a mixed cohort of face-to-face and distance learners against similar data from previous years where e-learning materials were not used in order to test whether e-learning materials can support the same quality and quantity of teaching and learning for both face-to-face and distance learners. The results for this cohort of learners demonstrate that: (i distance e-learners score as well and sometimes better than face-to-face learners; (ii face-to-face student numbers have increased; (iii overall, student retention and student attendance have been maintained; (iv final examination results have been maintained or in some cases improved; (v lecturer workload was high, but not unmanageable, and it is clear how manageability can be improved.

  9. Learning Peace (and Conflict): The Role of Primary Learning Materials in Peacebuilding in Post-War Afghanistan, South Sudan and Sri Lanka

    Science.gov (United States)

    Vanner, Catherine; Akseer, Spogmai; Kovinthan, Thursica

    2017-01-01

    Post-war education is usually considered a positive contributor to peacebuilding; however, it can also reinforce divisive perspectives. Textbooks and learning materials can be instrumental in maintaining or exacerbating existing inequalities. This paper uses case study literature reviews of Afghanistan, South Sudan and Sri Lanka to explore the…

  10. Innovation and Organizational Communication in Corporate America: The Rhetorical Visions of Managers, Facilitators, and Employees on Quality Circles.

    Science.gov (United States)

    Eyo, Bassey A.

    1992-01-01

    Examines the dynamics of organizational communication following corporate implementation of quality circles. Describes the rhetorical visions of people at three organizational levels closely associated with quality circles: (1) managers; (2) facilitators who organize the quality circles; and (3) employees. (SR)

  11. Are Namibian "fairy circles" the consequence of self-organizing spatial vegetation patterning?

    Directory of Open Access Journals (Sweden)

    Michael D Cramer

    Full Text Available Causes of over-dispersed barren "fairy circles" that are often surrounded by ca. 0.5 m tall peripheral grasses in a matrix of shorter (ca. 0.2 m tall grasses in Namibian grasslands remain mysterious. It was hypothesized that the fairy circles are the consequence of self-organizing spatial vegetation patterning arising from resource competition and facilitation. We examined the edaphic properties of fairy circles and variation in fairy circle size, density and landscape occupancy (% land surface with edaphic properties and water availability at a local scale (<50 km and with climate and vegetation characteristics at a regional scale. Soil moisture in the barren fairy circles declines from the center towards the periphery and is inversely correlated with soil organic carbon, possibly indicating that the peripheral grass roots access soil moisture that persists into the dry season within fairy circles. Fairy circle landscape occupancy is negatively correlated with precipitation and soil [N], consistent with fairy circles being the product of resource-competition. Regional fairy circle presence/absence is highly predictable using an empirical model that includes narrow ranges of vegetation biomass, precipitation and temperature seasonality as predictor variables, indicating that fairy circles are likely a climate-dependent emergent phenomenon. This dependence of fairy circle occurrence on climate explains why fairy circles in some locations may appear and disappear over time. Fairy circles are only over-dispersed at high landscape occupancies, indicating that inter-circle competition may determine their spacing. We conclude that fairy circles are likely to be an emergent arid-grassland phenomenon that forms as a consequence of peripheral grass resource-competition and that the consequent barren circle may provide a resource-reservoir essential for the survival of the larger peripheral grasses and provides a habitat for fossicking fauna.

  12. Pengembangan perangkat pembelajaran fisika problem based learning melalui kegiatan fieldtrip pada materi energi

    Directory of Open Access Journals (Sweden)

    Hatta Yarid

    2016-04-01

    Abstract This research was aimed to: (1 yield a learning-based problem model of physics learning equipment through a feasible fieldtrip, (2 identify physics learning results in the forms of cognitive aspect, learning interest and learner creative thinking from physics learning implementation with a problem-based learning model through a fieldtrip activity.This was a research and development research. The validation towards learning equipment was conducted by two expert lecturers and learning equipment readable was experimented to the learners. The experimented subject was conducted in XI Senior High School grade numbered 30 learners. Data gathering instrument used  interview guide, questionnaire and observation. Data analysis was conducted by a content analysis and percentage descriptive analysis. It could be concluded that: (1 physics learning equipment was declared feasible with good criteria, (2 learning results in cognitive aspect in the experimental class obtained average of 62.93 and controlled class average of 57.20. The results of learners learning interest in the experimental class had an average of 67.50 and controlled class average was 65.56. While learning result of learner creative thinking was obtained experimental class average of 74.91 and controlled class average of 65.56. Keywords: problem-based learning model, fieldtrip, learning results, cognitive, learning interest, creative thinking, physics learning equipment

  13. The Integration of Environmental Education in Science Materials by Using "MOTORIC" Learning Model

    Science.gov (United States)

    Sukarjita, I. Wayan; Ardi, Muhammad; Rachman, Abdul; Supu, Amiruddin; Dirawan, Gufran Darma

    2015-01-01

    The research of the integration of Environmental Education in science subject matter by application of "MOTORIC" Learning models has carried out on Junior High School Kupang Nusa Tenggara Timur Indonesia. "MOTORIC" learning model is an Environmental Education (EE) learning model that collaborate three learning approach i.e.…

  14. A localization algorithm of adaptively determining the ROI of the reference circle in image

    Science.gov (United States)

    Xu, Zeen; Zhang, Jun; Zhang, Daimeng; Liu, Xiaomao; Tian, Jinwen

    2018-03-01

    Aiming at solving the problem of accurately positioning the detection probes underwater, this paper proposed a method based on computer vision which can effectively solve this problem. The theory of this method is that: First, because the shape information of the heat tube is similar to a circle in the image, we can find a circle which physical location is well known in the image, we set this circle as the reference circle. Second, we calculate the pixel offset between the reference circle and the probes in the picture, and adjust the steering gear through the offset. As a result, we can accurately measure the physical distance between the probes and the under test heat tubes, then we can know the precise location of the probes underwater. However, how to choose reference circle in image is a difficult problem. In this paper, we propose an algorithm that can adaptively confirm the area of reference circle. In this area, there will be only one circle, and the circle is the reference circle. The test results show that the accuracy of the algorithm of extracting the reference circle in the whole picture without using ROI (region of interest) of the reference circle is only 58.76% and the proposed algorithm is 95.88%. The experimental results indicate that the proposed algorithm can effectively improve the efficiency of the tubes detection.

  15. Guided Discovery of the Nine-Point Circle Theorem and Its Proof

    Science.gov (United States)

    Buchbinder, Orly

    2018-01-01

    The nine-point circle theorem is one of the most beautiful and surprising theorems in Euclidean geometry. It establishes an existence of a circle passing through nine points, all of which are related to a single triangle. This paper describes a set of instructional activities that can help students discover the nine-point circle theorem through…

  16. The Value of the Math Circle for Gifted Middle School Students

    Science.gov (United States)

    Burns, Barbara; Henry, Julie; McCarthy, Dianne; Tripp, Jennifer

    2017-01-01

    Math Circles are designed to allow students to explore mathematics using a problem-solving/inquiry approach. Many of the students attending our Math Circle are mathematically talented and curious. This study examines the perspectives of the students and their families in determining why students attend Math Circle, what they enjoy about Math…

  17. The Chicken and the Egg: Inviting Response and Talk through Socratic Circles

    Science.gov (United States)

    Styslinger, Mary E.; Pollock, Timothy

    2010-01-01

    This collaborative inquiry answers the following questions: 1) What is the nature of talk during Socratic Circles? 2) What is student response to talk? 3) How might knowing more about student response to talk and the nature of talk improve teaching during Socratic Circles? The article first describes the process of implementing Socratic Circles,…

  18. Circling motion and screen edges as an alternative input method for on-screen target manipulation.

    Science.gov (United States)

    Ka, Hyun W; Simpson, Richard C

    2017-04-01

    To investigate a new alternative interaction method, called circling interface, for manipulating on-screen objects. To specify a target, the user makes a circling motion around the target. To specify a desired pointing command with the circling interface, each edge of the screen is used. The user selects a command before circling the target. To evaluate the circling interface, we conducted an experiment with 16 participants, comparing the performance on pointing tasks with different combinations of selection method (circling interface, physical mouse and dwelling interface) and input device (normal computer mouse, head pointer and joystick mouse emulator). A circling interface is compatible with many types of pointing devices, not requiring physical activation of mouse buttons, and is more efficient than dwell-clicking. Across all common pointing operations, the circling interface had a tendency to produce faster performance with a head-mounted mouse emulator than with a joystick mouse. The performance accuracy of the circling interface outperformed the dwelling interface. It was demonstrated that the circling interface has the potential as another alternative pointing method for selecting and manipulating objects in a graphical user interface. Implications for Rehabilitation A circling interface will improve clinical practice by providing an alternative pointing method that does not require physically activating mouse buttons and is more efficient than dwell-clicking. The Circling interface can also work with AAC devices.

  19. Absent collateral function of the circle of Willis as risk factor for ischemic stroke

    NARCIS (Netherlands)

    Hoksbergen, A. W. J.; Legemate, D. A.; Csiba, L.; Csáti, G.; Síró, P.; Fülesdi, B.

    2003-01-01

    Background. Autopsy studies show a higher prevalence of circle of Willis anomalies in brains with signs of ischemic infarction. Our goal was to examine the collateral function of the circle of Willis in ischemic stroke patients and to assess in a case-control study if a collateral deficient circle

  20. Optimal weights for circle fitting with discrete granular data

    International Nuclear Information System (INIS)

    Chernov, N.; Kolganova, E.; Ososkov, G.

    1995-01-01

    The problem of the data approximation measured along a circle by modern detectors in high energy physics, as for example, RICH (Ring Imaging Cherenkov) is considered. Such detectors having the discrete cell structure register the energy dissipation produced by a passing elementary particle not in a single point, but in several adjacent cells where all this energy is distributed. The presence of background hits makes inapplicable circle fitting methods based on the least square fit due to their noise sensitivity. In this paper it's shown that the efficient way to overcome these problems of the curve fitting is the robust fitting technique based on a reweighted least square method with optimally chosen weights, obtained by the use of maximum likelihood estimates. Results of numerical experiments are given proving the high efficiency of the suggested method. 9 refs., 5 figs., 1 tab

  1. Handwriting: three-dimensional kinetic synergies in circle drawing movements.

    Science.gov (United States)

    Hooke, Alexander W; Karol, Sohit; Park, Jaebum; Kim, Yoon Hyuk; Shim, Jae Kun

    2012-07-01

    The purpose of this study was to investigate central nervous system (CNS) strategies for controlling multifinger forces during a circle-drawing task. Subjects drew 30 concentric, discontinuous clockwise and counter clockwise circles, at self and experimenter-set paces. The three-dimensional trajectory of the pen's center of mass and the three-dimensional forces and moments of force at each contact between the hand and the pen were recorded. Uncontrolled Manifold Analysis was used to quantify the synergies between pen-hand contact forces in radial, tangential and vertical directions. Results showed that synergies in the radial and tangential components were significantly stronger than in the vertical component. Synergies in the clockwise direction were significantly stronger than the counterclockwise direction in the radial and vertical components. Pace was found to be insignificant under any condition.

  2. Co-Constructing Knowledge through NGO-Driven Circle Work

    DEFF Research Database (Denmark)

    Agerbæk, Jonas

    This presentation revolves around the question of what degree of control, if any, the users participating in NGO-driven development programs may have over their own development. Based on a multi-sited ethnography of NGO organizing and communication that I conducted in the period of 2010 to 2015......, and with a special analytical focus on the facilitating role of frontline NGO workers in rural East Africa, this presentation discusses enabling and constraining aspects of using circle work to co-produce knowledge in international development. More particularly I am focusing an approach to circle work called......, then participatory approaches such as REFLECT can be used not only to drive changes locally but also bolster the global participatory agenda of defining development practices and politics from the bottom and up...

  3. Content-aware photo collage using circle packing.

    Science.gov (United States)

    Yu, Zongqiao; Lu, Lin; Guo, Yanwen; Fan, Rongfei; Liu, Mingming; Wang, Wenping

    2014-02-01

    In this paper, we present a novel approach for automatically creating the photo collage that assembles the interest regions of a given group of images naturally. Previous methods on photo collage are generally built upon a well-defined optimization framework, which computes all the geometric parameters and layer indices for input photos on the given canvas by optimizing a unified objective function. The complex nonlinear form of optimization function limits their scalability and efficiency. From the geometric point of view, we recast the generation of collage as a region partition problem such that each image is displayed in its corresponding region partitioned from the canvas. The core of this is an efficient power-diagram-based circle packing algorithm that arranges a series of circles assigned to input photos compactly in the given canvas. To favor important photos, the circles are associated with image importances determined by an image ranking process. A heuristic search process is developed to ensure that salient information of each photo is displayed in the polygonal area resulting from circle packing. With our new formulation, each factor influencing the state of a photo is optimized in an independent stage, and computation of the optimal states for neighboring photos are completely decoupled. This improves the scalability of collage results and ensures their diversity. We also devise a saliency-based image fusion scheme to generate seamless compositive collage. Our approach can generate the collages on nonrectangular canvases and supports interactive collage that allows the user to refine collage results according to his/her personal preferences. We conduct extensive experiments and show the superiority of our algorithm by comparing against previous methods.

  4. Quantum mechanics on the circle and W1+∞

    International Nuclear Information System (INIS)

    Floreanini, R.; Percacci, R.; Sezgin, E.

    1991-08-01

    The algebra W 1+∞ , with central charge c = 0, can be identified with the algebra of quantum observables of a particle moving on a circle. Mathematically, it is the universal enveloping algebra of the Euclidean algebra in two dimensions. Similarly, the super-W ∞ algebra is found to be the universal enveloping algebra of the super-Euclidean algebra in two dimensions. (author). 14 refs

  5. High accurate time system of the Low Latitude Meridian Circle.

    Science.gov (United States)

    Yang, Jing; Wang, Feng; Li, Zhiming

    In order to obtain the high accurate time signal for the Low Latitude Meridian Circle (LLMC), a new GPS accurate time system is developed which include GPS, 1 MC frequency source and self-made clock system. The second signal of GPS is synchronously used in the clock system and information can be collected by a computer automatically. The difficulty of the cancellation of the time keeper can be overcomed by using this system.

  6. Normal Isocurvature Surfaces and Special Isocurvature Circles (SIC)

    Science.gov (United States)

    Manoussakis, Gerassimos; Delikaraoglou, Demitris

    2010-05-01

    An isocurvature surface of a gravity field is a surface on which the value of the plumblines' curvature is constant. Here we are going to study the isocurvature surfaces of the Earth's normal gravity field. The normal gravity field is a symmetric gravity field therefore the isocurvature surfaces are surfaces of revolution. But even in this case the necessary relations for their study are not simple at all. Therefore to study an isocurvature surface we make special assumptions to form a vector equation which will hold only for a small coordinate patch of the isocurvature surface. Yet from the definition of the isocurvature surface and the properties of the normal gravity field is possible to express very interesting global geometrical properties of these surfaces without mixing surface differential calculus. The gradient of the plumblines' curvature function is vertical to an isocurvature surface. If P is a point of an isocurvature surface and "Φ" is the angle of the gradient of the plumblines' curvature with the equatorial plane then this direction points to the direction along which the curvature of the plumbline decreases / increases the most, and therefore is related to the strength of the normal gravity field. We will show that this direction is constant along a line of curvature of the isocurvature surface and this line is an isocurvature circle. In addition we will show that at each isocurvature surface there is at least one isocurvature circle along which the direction of the maximum variation of the plumblines' curvature function is parallel to the equatorial plane of the ellipsoid of revolution. This circle is defined as a Special Isocurvature Circle (SIC). Finally we shall prove that all these SIC lye on a special surface of revolution, the so - called SIC surface. That is to say, a SIC is not an isolated curve in the three dimensional space.

  7. CS Circles: An In-Browser Python Course for Beginners

    OpenAIRE

    Pritchard, David; Vasiga, Troy

    2012-01-01

    Computer Science Circles is a free programming website for beginners that is designed to be fun, easy to use, and accessible to the broadest possible audience. We teach Python since it is simple yet powerful, and the course content is well-structured but written in plain language. The website has over one hundred exercises in thirty lesson pages, plus special features to help teachers support their students. It is available in both English and French. We discuss the philosophy behind the cour...

  8. BANQUET SPEECH Full Circle: Star Ferry to Stardust

    Science.gov (United States)

    Matthews, Clifford N.

    2008-10-01

    Good evening. I'd like to invite you to join me on a journey that could be entitled “Full Circle: Star Ferry to Stardust”. “Star Ferry” represents Hong Kong, my home town, and especially its university - Hong Kong University - as I knew it during the years of World War II. “Stardust” refers to our gathering here to report on our research on possible organic chemistry in space.

  9. Social Circles Detection from Ego Network and Profile Information

    Science.gov (United States)

    2014-12-19

    way of organizing contacts in personal networks . They are therefore currently implemented in the major social net- working systems, such as Facebook ...0704-0188 3. DATES COVERED (From - To) - UU UU UU UU Approved for public release; distribution is unlimited. Social Circles Detection from Ego Network ...structural network information but also the contents of social interactions, with the aim to detect copying communities. The views, opinions and/or findings

  10. Discovering Social Circles in Ego Networks (Author’s Manuscript)

    Science.gov (United States)

    2013-01-10

    refer to as social cir- cles. Practically all major social networks provide such functionality, for example, ‘circles’ on Google+, and ‘lists’ on Facebook ...Discovering Social Circles in Ego Networks Julian McAuley and Jure Leskovec Stanford jmcauley@cs.stanford.edu, jure@cs.stanford.edu January 11, 2013...Abstract People’s personal social networks are big and cluttered, and currently there is no good way to automatically organize them. Social networking

  11. Truncated Calogero-Sutherland models on a circle

    Science.gov (United States)

    Tummuru, Tarun R.; Jain, Sudhir R.; Khare, Avinash

    2017-12-01

    We investigate a quantum many-body system with particles moving in a circle and subject to two-body and three-body potentials. This class of models, in which the range of interaction r can be set to a certain number of neighbors, extrapolates from a system with interactions up to next-to-nearest neighbors and the celebrated Calogero-Sutherland model. The exact ground state energy and a part of the excitation spectrum have been obtained.

  12. Ghost circles in lattice Aubry-Mather theory

    Science.gov (United States)

    Mramor, Blaz; Rink, Bob

    Monotone lattice recurrence relations such as the Frenkel-Kontorova lattice, arise in Hamiltonian lattice mechanics, as models for ferromagnetism and as discretization of elliptic PDEs. Mathematically, they are a multi-dimensional counterpart of monotone twist maps. Such recurrence relations often admit a variational structure, so that the solutions x:Z→R are the stationary points of a formal action function W(x). Given any rotation vector ω∈R, classical Aubry-Mather theory establishes the existence of a large collection of solutions of ∇W(x)=0 of rotation vector ω. For irrational ω, this is the well-known Aubry-Mather set. It consists of global minimizers and it may have gaps. In this paper, we study the parabolic gradient flow {dx}/{dt}=-∇W(x) and we will prove that every Aubry-Mather set can be interpolated by a continuous gradient-flow invariant family, the so-called 'ghost circle'. The existence of these ghost circles is known in dimension d=1, for rational rotation vectors and Morse action functions. The main technical result of this paper is therefore a compactness theorem for lattice ghost circles, based on a parabolic Harnack inequality for the gradient flow. This implies the existence of lattice ghost circles of arbitrary rotation vectors and for arbitrary actions. As a consequence, we can give a simple proof of the fact that when an Aubry-Mather set has a gap, then this gap must be filled with minimizers, or contain a non-minimizing solution.

  13. Sphalerons of O(3) nonlinear sigma model on a circle

    International Nuclear Information System (INIS)

    Funakubo, Koichi; Otsuki, Shoichiro; Toyoda, Fumihiko.

    1989-09-01

    A series of saddle point solutions of O(3) nonlinear sigma model with symmetry breaking term in 1 + 1 dimensions are obtained by imposing boundary condition either periodic or partially antiperiodic (O(3) sphalerons on a circle). Under the periodic boundary condition, classical features of the O(3) sphalerons are similar to scalar sphalerons of φ 4 model on a circle by Manton and Samols. Under the partially antiperiodic boundary condition, the lowest of the O(3) sphalerons coincides in the limit of infinite spatial domain with the O(3) sphaleron by Mottola and Wipf. In particular, zero and negative modes of them are examined in detail. An estimate of transition rate over the lowest O(3) sphaleron at finite temperature is made, and some remarks on simulating the transition on a lattice are given. One to one correspondence between these O(3) sphalerons on a circle and a series of (possible) classical solutions of SU(2) gauge-Higgs model, to which the electroweak sphaleron S and new sphaleron S* belong, is discussed. (author)

  14. [Data supporting quality circle management of inpatient depression treatment].

    Science.gov (United States)

    Brand, S; Härter, M; Sitta, P; van Calker, D; Menke, R; Heindl, A; Herold, K; Kudling, R; Luckhaus, C; Rupprecht, U; Sanner, Dirk; Schmitz, D; Schramm, E; Berger, M; Gaebel, W; Schneider, F

    2005-07-01

    Several quality assurance initiatives in health care have been undertaken during the past years. The next step consists of systematically combining single initiatives in order to built up a strategic quality management. In a German multicenter study, the quality of inpatient depression treatment was measured in ten psychiatric hospitals. Half of the hospitals received comparative feedback on their individual results in comparison to the other hospitals (bench marking). Those bench markings were used by each hospital as a statistic basis for in-house quality work, to improve the quality of depression treatment. According to hospital differences concerning procedure and outcome, different goals were chosen. There were also differences with respect to structural characteristics, strategies, and outcome. The feedback from participants about data-based quality circles in general and the availability of bench-marking data was positive. The necessity of carefully choosing quality circle members and professional moderation became obvious. Data-based quality circles including bench-marking have proven to be useful for quality management in inpatient depression care.

  15. Penerapan Model Learning Cycle 5E untuk Meningkatkan Keterampilan Berpikir Kritis Siswa Pada Materi Fluida Statis Kelas VIII

    Directory of Open Access Journals (Sweden)

    Irhamna Irhamna

    2017-08-01

    Full Text Available Penerapan model learning cycle 5E telah dilakukan pada siswa kelas VIII dengan materi fluida statis. Penelitian ini bertujuan untuk mendapatkan gambaran mengenai peningkatan keterampilan berpikir kritis siswa setelah diterapkan model learning cycle 5E pada materi fluida statis. Bentuk desain penelitian yang digunakan adalah pre-experimental dengan one group pre-test post-test design. Populasi pada penelitian ini adalah seluruh siswa kelas VIII di SMP Torsina Singkawang. Teknik pengambilan sampel menggunakan sampling purposive yang berjumlah 23 orang. Hasil penelitian menunjukkan bahwa model learning cyle 5E dapat meningkatkan keterampilan berpikir kritis siswa yaitu pada indikator pemecahan masalah dengan skor N-gain sebesar 0,43 dengan kategori sedang, indikator membuat keputusan dengan skor N-gain sebesar 0,42 dengan kategori sedang, indikator penyelidikan percobaan dengan skor N-gain sebesar 0,33 dengan kategori sedang dan indikator menyimpulkan dengan skor N-gain sebesar 0,37 dengan kategori sedang.

  16. Provision of Learning and Teaching Materials for Pupils with Visual Impairment: Results from a National Survey in Zambia

    Science.gov (United States)

    Akakandelwa, Akakandelwa; Munsanje, Joseph

    2012-01-01

    The aim of this study was to determine the provision of learning and teaching materials for pupils with visual impairment in basic and high schools of Zambia. A survey approach utilizing a questionnaire, interviews and a review of the literature was adopted for the study. The findings demonstrated that most schools in Zambia did not provide…

  17. Influences of Inadequate Instructional Materials and Facilities in Teaching and Learning of Electrical/Electronics Technology Education Courses

    Science.gov (United States)

    Ogbu, James E.

    2015-01-01

    This study investigated the influences of inadequate instructional materials and facilities in the teaching and learning of electrical/electronics (E/E) technology education courses. The study was guided by two research questions and two null hypotheses which were tested at 0.05 level of significance. The design employed was descriptive survey…

  18. Predicting Teachers’ use of Digital Learning Materials: Combining Self-Determination Theory and the Integrative Model of Behavior Prediction

    NARCIS (Netherlands)

    Kreijns, Karel; Vermeulen, Marjan; Van Acker, Frederik; Van Buuren, Hans

    2018-01-01

    In this article, we report on a study that investigated the motivational (e.g., intrinsic motivation) and dispositional variables (e.g., attitudes) that determine teachers’ intention to use or not to use Digital Learning Materials (DLMs). To understand the direct and indirect relationships between

  19. Making It "Authentic": Egyptian EFL Student Teachers' Awareness and Use of Online Authentic Language Materials and Their Learning Motivation

    Science.gov (United States)

    Abdelhafez, Hanan A.; Abdallah, Mahmoud M. S.

    2015-01-01

    This paper reports a research study that sought investigating Assiut University College of Education (AUCOE) EFL student teachers' awareness and use of online authentic materials on the basis of their actual language leaning needs, and how this relates to their language learning motivation. To accomplish this, a mixed-method research methodology…

  20. Not New, but Nearly Forgotten: The Testing Effect Decreases or Even Disappears as the Complexity of Learning Materials Increases

    Science.gov (United States)

    van Gog, Tamara; Sweller, John

    2015-01-01

    The testing effect is a finding from cognitive psychology with relevance for education. It shows that after an initial study period, taking a practice test improves long-term retention compared to not taking a test and--more interestingly--compared to restudying the learning material. Boundary conditions of the effect that have received attention…

  1. Lessons learned from the development and manufacture of ceramic reusable surface insulation materials for the space shuttle orbiters

    Science.gov (United States)

    Banas, R. P.; Elgin, D. R.; Cordia, E. R.; Nickel, K. N.; Gzowski, E. R.; Aguiler, L.

    1983-01-01

    Three ceramic, reusable surface insulation materials and two borosilicate glass coatings were used in the fabrication of tiles for the Space Shuttle orbiters. Approximately 77,000 tiles were made from these materials for the first three orbiters, Columbia, Challenger, and Discovery. Lessons learned in the development, scale up to production and manufacturing phases of these materials will benefit future production of ceramic reusable surface insulation materials. Processing of raw materials into tile blanks and coating slurries; programming and machining of tiles using numerical controlled milling machines; preparing and spraying tiles with the two coatings; and controlling material shrinkage during the high temperature (2100-2275 F) coating glazing cycles are among the topics discussed.

  2. The role of transformative leadership, ICT infrastructure and learning climate in teachers’ use of digital learning materials during their classes

    NARCIS (Netherlands)

    Vermeulen, Marjan; Kreijns, Karel; Van Buuren, Hans; Van Acker, Frederik

    2017-01-01

    This study investigated whether the school organizational variables transformative leadership (TL), ICT-infrastructure (technical and social), and organizational learning climate were related to teachers’ dispositional variables attitude, perceived norm, and perceived behavior control (PBC). The

  3. Materialism.

    Science.gov (United States)

    Melnyk, Andrew

    2012-05-01

    Materialism is nearly universally assumed by cognitive scientists. Intuitively, materialism says that a person's mental states are nothing over and above his or her material states, while dualism denies this. Philosophers have introduced concepts (e.g., realization and supervenience) to assist in formulating the theses of materialism and dualism with more precision, and distinguished among importantly different versions of each view (e.g., eliminative materialism, substance dualism, and emergentism). They have also clarified the logic of arguments that use empirical findings to support materialism. Finally, they have devised various objections to materialism, objections that therefore serve also as arguments for dualism. These objections typically center around two features of mental states that materialism has had trouble in accommodating. The first feature is intentionality, the property of representing, or being about, objects, properties, and states of affairs external to the mental states. The second feature is phenomenal consciousness, the property possessed by many mental states of there being something it is like for the subject of the mental state to be in that mental state. WIREs Cogn Sci 2012, 3:281-292. doi: 10.1002/wcs.1174 For further resources related to this article, please visit the WIREs website. Copyright © 2012 John Wiley & Sons, Ltd.

  4. the use of learning Support Materials in rural Schools of Maputaland ...

    African Journals Online (AJOL)

    discovery of a colony of coelacanths, a prehistoric species of fish, off the coast of ... The relationship between active learning, oBE and learning ...... Biodiversity and the National Research Foundation are acknowledged for the opportunity.

  5. Experimental study of circle grid fractal pattern on turbulent intensity in pipe flow

    International Nuclear Information System (INIS)

    Manshoor, B; Zaman, I; Othman, M F; Khalid, Amir

    2013-01-01

    Fractal turbulence is deemed much more efficient than grid turbulence in terms of a turbulence generation. In this paper, the hotwire experimental results for the circle grids fractal pattern as a turbulent generator will be presented. The self-similar edge characteristic of the circle grid fractal pattern is thought to play a vital role in the enhancement of turbulent intensity. Three different beta ratios of perforated plates based on circle grids fractal pattern were used in the experimental work and each paired with standard circle grids with similar porosity. The objectives were to study the fractal scaling influence on the flow and also to explore the potential of the circle grids fractal pattern in enhancing the turbulent intensity. The results provided an excellent insight of the fractal generated turbulence and the fractal flow physics. Across the circle grids fractal pattern, the pressure drop was lower but the turbulent intensity was higher than those across the paired standard circle grids

  6. Understanding students' concepts through guided inquiry learning and free modified inquiry on static fluid material

    OpenAIRE

    Sularso Sularso; Widha Sunarno; Sarwanto Sarwanto

    2017-01-01

    This study provides information on understanding students' concepts in guided inquiry learning groups and in free modified inquiry learning groups. Understanding of student concept is reviewed on the concept of static fluid case. The number of samples tested were 67 students. The sample is divided into 2 groups of students: the group is given guided inquiry learning and the group given the modified free inquiry learning. Understanding the concept of students is measured through 23 tests of it...

  7. Using synchrotron light to accelerate EUV resist and mask materials learning

    Science.gov (United States)

    Naulleau, Patrick; Anderson, Christopher N.; Baclea-an, Lorie-Mae; Denham, Paul; George, Simi; Goldberg, Kenneth A.; Jones, Gideon; McClinton, Brittany; Miyakawa, Ryan; Mochi, Iacopo; Montgomery, Warren; Rekawa, Seno; Wallow, Tom

    2011-03-01

    As commercialization of extreme ultraviolet lithography (EUVL) progresses, direct industry activities are being focused on near term concerns. The question of long term extendibility of EUVL, however, remains crucial given the magnitude of the investments yet required to make EUVL a reality. Extendibility questions are best addressed using advanced research tools such as the SEMATECH Berkeley microfield exposure tool (MET) and actinic inspection tool (AIT). Utilizing Lawrence Berkeley National Laboratory's Advanced Light Source facility as the light source, these tools benefit from the unique properties of synchrotron light enabling research at nodes generations ahead of what is possible with commercial tools. The MET for example uses extremely bright undulator radiation to enable a lossless fully programmable coherence illuminator. Using such a system, resolution enhancing illuminations achieving k1 factors of 0.25 can readily be attained. Given the MET numerical aperture of 0.3, this translates to an ultimate resolution capability of 12 nm. Using such methods, the SEMATECH Berkeley MET has demonstrated resolution in resist to 16-nm half pitch and below in an imageable spin-on hard mask. At a half pitch of 16 nm, this material achieves a line-edge roughness of 2 nm with a correlation length of 6 nm. These new results demonstrate that the observed stall in ultimate resolution progress in chemically amplified resists is a materials issue rather than a tool limitation. With a resolution limit of 20-22 nm, the CAR champion from 2008 remains as the highest performing CAR tested to date. To enable continued advanced learning in EUV resists, SEMATECH has initiated a plan to implement a 0.5 NA microfield tool at the Advanced Light Source synchrotron facility. This tool will be capable of printing down to 8-nm half pitch.

  8. Authoring Robot-Assisted Instructional Materials for Improving Learning Performance and Motivation in EFL Classrooms

    Science.gov (United States)

    Hong, Zeng-Wei; Huang, Yueh-Min; Hsu, Marie; Shen, Wei-Wei

    2016-01-01

    Anthropomorphized robots are regarded as beneficial tools in education due to their capabilities of improving teaching effectiveness and learning motivation. Therefore, one major trend of research, known as Robot- Assisted Language Learning (RALL), is trying to develop robots to support teaching and learning English as a foreign language (EFL). As…

  9. Application of Learning Methods to Local Electric Field Distributions in Defected Dielectric Materials

    Science.gov (United States)

    Ferris, Kim; Jones, Dumont

    2014-03-01

    Local electric fields reflect the structural and dielectric fluctuations in a semiconductor, and affect the material performance both for electron transport and carrier lifetime properties. In this paper, we use the LOCALF methodology with periodic boundary conditions to examine the local electric field distributions and its perturbations for II-VI (CdTe, Cd(1-x)Zn(x)Te) semiconductors, containing Te inclusions and small fluctuations in the local dielectric susceptibility. With inclusion of the induced-field term, the electric field distribution shows enhancements and diminishments compared to the macroscopic applied field, reflecting the microstructure characteristics of the dielectric. Learning methods are applied to these distributions to assess the spatial extent of the perturbation, and determine an electric field defined defect size as compared to its physical dimension. Critical concentrations of defects are assessed in terms of defect formation energies. This work was supported by the US Department of Homeland Security, Domestic Nuclear Detection Office, under competitively awarded contract/IAA HSHQDC-08-X-00872-e. This support does not constitute an express or implied endorsement on the part of the Gov't.

  10. [Learning to use semiautomatic external defibrillators through audiovisual materials for schoolchildren].

    Science.gov (United States)

    Jorge-Soto, Cristina; Abelairas-Gómez, Cristian; Barcala-Furelos, Roberto; Gregorio-García, Carolina; Prieto-Saborit, José Antonio; Rodríguez-Núñez, Antonio

    2016-01-01

    To assess the ability of schoolchildren to use a automated external defibrillator (AED) to provide an effective shock and their retention of the skill 1 month after a training exercise supported by audiovisual materials. Quasi-experimental controlled study in 205 initially untrained schoolchildren aged 6 to 16 years old. SAEDs were used to apply shocks to manikins. The students took a baseline test (T0) of skill, and were then randomized to an experimental or control group in the first phase (T1). The experimental group watched a training video, and both groups were then retested. The children were tested in simulations again 1 month later (T2). A total of 196 students completed all 3 phases. Ninety-six (95.0%) of the secondary school students and 54 (56.8%) of the primary schoolchildren were able to explain what a SAED is. Twenty of the secondary school students (19.8%) and 8 of the primary schoolchildren (8.4%) said they knew how to use one. At T0, 78 participants (39.8%) were able to simulate an effective shock. At T1, 36 controls (34.9%) and 56 experimental-group children (60.2%) achieved an effective shock (Paudiovisual instruction improves students' skill in managing a SAED and helps them retain what they learned for later use.

  11. Machine learning to analyze images of shocked materials for precise and accurate measurements

    Energy Technology Data Exchange (ETDEWEB)

    Dresselhaus-Cooper, Leora; Howard, Marylesa; Hock, Margaret C.; Meehan, B. T.; Ramos, Kyle J.; Bolme, Cindy A.; Sandberg, Richard L.; Nelson, Keith A.

    2017-09-14

    A supervised machine learning algorithm, called locally adaptive discriminant analysis (LADA), has been developed to locate boundaries between identifiable image features that have varying intensities. LADA is an adaptation of image segmentation, which includes techniques that find the positions of image features (classes) using statistical intensity distributions for each class in the image. In order to place a pixel in the proper class, LADA considers the intensity at that pixel and the distribution of intensities in local (nearby) pixels. This paper presents the use of LADA to provide, with statistical uncertainties, the positions and shapes of features within ultrafast images of shock waves. We demonstrate the ability to locate image features including crystals, density changes associated with shock waves, and material jetting caused by shock waves. This algorithm can analyze images that exhibit a wide range of physical phenomena because it does not rely on comparison to a model. LADA enables analysis of images from shock physics with statistical rigor independent of underlying models or simulations.

  12. Differential learning and memory performance in OEF/OIF veterans for verbal and visual material.

    Science.gov (United States)

    Sozda, Christopher N; Muir, James J; Springer, Utaka S; Partovi, Diana; Cole, Michael A

    2014-05-01

    Memory complaints are particularly salient among veterans who experience combat-related mild traumatic brain injuries and/or trauma exposure, and represent a primary barrier to successful societal reintegration and everyday functioning. Anecdotally within clinical practice, verbal learning and memory performance frequently appears differentially reduced versus visual learning and memory scores. We sought to empirically investigate the robustness of a verbal versus visual learning and memory discrepancy and to explore potential mechanisms for a verbal/visual performance split. Participants consisted of 103 veterans with reported history of mild traumatic brain injuries returning home from U.S. military Operations Enduring Freedom and Iraqi Freedom referred for outpatient neuropsychological evaluation. Findings indicate that visual learning and memory abilities were largely intact while verbal learning and memory performance was significantly reduced in comparison, residing at approximately 1.1 SD below the mean for verbal learning and approximately 1.4 SD below the mean for verbal memory. This difference was not observed in verbal versus visual fluency performance, nor was it associated with estimated premorbid verbal abilities or traumatic brain injury history. In our sample, symptoms of depression, but not posttraumatic stress disorder, were significantly associated with reduced composite verbal learning and memory performance. Verbal learning and memory performance may benefit from targeted treatment of depressive symptomatology. Also, because visual learning and memory functions may remain intact, these might be emphasized when applying neurocognitive rehabilitation interventions to compensate for observed verbal learning and memory difficulties.

  13. Enhancing students’ cognitive skill in Nguyen Tat Thanh high school Hanoi Vietnam through scientific learning material of static electricity

    Science.gov (United States)

    Priyanto, A.; Linuwih, S.; Aji, M. P.; Bich, D. D.

    2018-03-01

    Scientific learning material is still needed by students at Nguyen Tat Thanh High School (NTT), Hanoi Vietnam in order to enhance the students’ cognitive skill. Cognitive skill represents the level of students’ understanding to the particular material. Students’ cognitive skill can be improved by applying the learning material based on scientific approach as a treatment. The enhancement of students’ cognitive skill can be measured by analyzing the students’ test result collected before and after treatment. The analysis is focused to measure the enhancement or the sifted of cognitive aspects including remembering aspect (C1), understanding aspect (C2), applying aspect (C3), analyzing aspect (C4), and evaluating aspect (C5). According to the analysis the enhancement of cognitive aspects are 8.26% of remembering, 3.26% of understanding, 32.94% of applying, 21.74% of analyzing, and 21.74% of evaluating. The major enhancements are occured at applying, analyzing, and evaluating aspects. Therefore it can be concluded that students’ cognitive skill is enhanced by applying scientific learning material of static electricity.

  14. Stereoscopic Machine-Vision System Using Projected Circles

    Science.gov (United States)

    Mackey, Jeffrey R.

    2010-01-01

    A machine-vision system capable of detecting obstacles large enough to damage or trap a robotic vehicle is undergoing development. The system includes (1) a pattern generator that projects concentric circles of laser light forward onto the terrain, (2) a stereoscopic pair of cameras that are aimed forward to acquire images of the circles, (3) a frame grabber and digitizer for acquiring image data from the cameras, and (4) a single-board computer that processes the data. The system is being developed as a prototype of machine- vision systems to enable robotic vehicles ( rovers ) on remote planets to avoid craters, large rocks, and other terrain features that could capture or damage the vehicles. Potential terrestrial applications of systems like this one could include terrain mapping, collision avoidance, navigation of robotic vehicles, mining, and robotic rescue. This system is based partly on the same principles as those of a prior stereoscopic machine-vision system in which the cameras acquire images of a single stripe of laser light that is swept forward across the terrain. However, this system is designed to afford improvements over some of the undesirable features of the prior system, including the need for a pan-and-tilt mechanism to aim the laser to generate the swept stripe, ambiguities in interpretation of the single-stripe image, the time needed to sweep the stripe across the terrain and process the data from many images acquired during that time, and difficulty of calibration because of the narrowness of the stripe. In this system, the pattern generator does not contain any moving parts and need not be mounted on a pan-and-tilt mechanism: the pattern of concentric circles is projected steadily in the forward direction. The system calibrates itself by use of data acquired during projection of the concentric-circle pattern onto a known target representing flat ground. The calibration- target image data are stored in the computer memory for use as a

  15. The Creation of Task-Based Differentiated Learning Materials for Students with Learning Difficulties and/or Disabilities.

    Science.gov (United States)

    Barker, Trevor; Jones, Sara; Britton, Carol; Messer, David

    This paper describes Horizon, a European-funded project designed to increase employment opportunities for students with disabilities or learning difficulties. The project established a working cafe/restaurant (Cafe Horizon) in East London staffed by students. Part of the project involved the creation of multimedia units linked directly to Level 1…

  16. Materials

    CSIR Research Space (South Africa)

    Van Wyk, Llewellyn V

    2009-02-01

    Full Text Available . It is generally included as part of a structurally insulated panel (SIP) where the foam is sandwiched between external skins of steel, wood or cement. Cement composites Cement bonded composites are an important class of building materials. These products... for their stone buildings, including the Egyptians, Aztecs and Inca’s. As stone is a very dense material it requires intensive heating to become warm. Rocks were generally stacked dry but mud, and later cement, can be used as a mortar to hold the rocks...

  17. Voice of the voiceless: The legacy of the Circle of Concerned African Women Theologians

    Directory of Open Access Journals (Sweden)

    Hazel O. Ayanga

    2016-07-01

    Full Text Available The Circle of Concerned African Women Theologians (the Circle formally came into existence in 1989 in Accra, Ghana. Under the charismatic leadership of Mercy Amba Oduyoye, the Circle sought to be the voice of African Christian women at the grass roots level. To this end research and publication was and still is one of the major pillars and activities of the Circle. The main objective of the Circle is �to write and publish theological literature written by African women from their own experience of religion and culture on this continent�. In this regard the Circle has been and continues to be the voice for and on behalf of the African woman in religion, culture and theology. However, 25 years down the line there is need for an evaluation of the legacy of the Circle. How has the Circle been a voice for the voiceless, a mentoring instrument for women venturing into the academia? This article seeks to do this evaluation by examining the activities of the Circle including research publication.Intradisciplinary and/or interdisciplinary implications: This article seeks to evaluate the achievements of the Circle of Concerned African Women Theologians in relation to the Circle�s stated objectives. The article picks up the notion of the Circle theologians as the voice of the voiceless women of Africa. The general approach of the article brings together discussions on social issues like gender, poverty and marginalisation as well as language. Theological and religious perspectives on these issues are understood from a Circle point of view.Keywords: women; voice; voicelessness; poverty; gender; The Circle; theology

  18. Orthogonal polynomials on the unit circle part 2 spectral theory

    CERN Document Server

    Simon, Barry

    2013-01-01

    This two-part book is a comprehensive overview of the theory of probability measures on the unit circle, viewed especially in terms of the orthogonal polynomials defined by those measures. A major theme involves the connections between the Verblunsky coefficients (the coefficients of the recurrence equation for the orthogonal polynomials) and the measures, an analog of the spectral theory of one-dimensional Schrödinger operators. Among the topics discussed along the way are the asymptotics of Toeplitz determinants (Szegő's theorems), limit theorems for the density of the zeros of orthogonal po

  19. Orthogonal polynomials on the unit circle part 1 classical theory

    CERN Document Server

    2009-01-01

    This two-part book is a comprehensive overview of the theory of probability measures on the unit circle, viewed especially in terms of the orthogonal polynomials defined by those measures. A major theme involves the connections between the Verblunsky coefficients (the coefficients of the recurrence equation for the orthogonal polynomials) and the measures, an analog of the spectral theory of one-dimensional Schrodinger operators. Among the topics discussed along the way are the asymptotics of Toeplitz determinants (Szegő's theorems), limit theorems for the density of the zeros of orthogonal po

  20. The Function of Love in Solzhenitsyn's The First Circle

    Directory of Open Access Journals (Sweden)

    John Schillinger

    1977-01-01

    Full Text Available Aleksander Solzhenitsyn, like Boris Pasternak before him, insists upon the primacy of life over any socio-political system. To lead truly meaningful lives, his characters must comprehend that they are responsible for their own actions; that they are engaged in an existential struggle which pits individual freedom against the will of authority. In The First Circle , this struggle is clearly reflected in the theme of love which, when analyzed in terms of the suppression or triumph of its four basic elements ( sex, eros, philia, and agape , offers a convincing allegory of man's existential self-definition by free choice.

  1. Social Circles: A 3D User Interface for Facebook

    Science.gov (United States)

    Rodrigues, Diego; Oakley, Ian

    Online social network services are increasingly popular web applications which display large amounts of rich multimedia content: contacts, status updates, photos and event information. Arguing that this quantity of information overwhelms conventional user interfaces, this paper presents Social Circles, a rich interactive visualization designed to support real world users of social network services in everyday tasks such as keeping up with friends and organizing their network. It achieves this by using 3D UIs, fluid animations and a spatial metaphor to enable direct manipulation of a social network.

  2. Improving Distance Courses: Understanding Teacher Trainees and their Learning Styles for the design of Teacher Training Courses and Materials at a Distance

    Directory of Open Access Journals (Sweden)

    Hisham DZAKIRIA

    2004-01-01

    Full Text Available Literature on distance education and teacher education seems to show that what we do not know about Distance Teacher Trainees (DTT and their learning process involved exceeds what we know about it. As more DTT enroll in distance education programmes globally, distance education providers and institutions will witness trainees coming with different backgrounds and experiences begin to take advantage of this learning opportunities. One important variable in the effectiveness of distance learning is the preference of the distance learner for a particular learning mode. A key to maintaining distance learners participation in learning lies in understanding the Learning Styles Preferences (LSP and the processes involved.This is also true for teacher training. There is much greater variation in the range of LSP and how to address them when preparing distance training materials and courses. The primary purpose of this paper is to propose ways in which individual learning differences should be accommodated when designing instructional learning materials in print for DTTs. Kolb’s (1984 model on learning cycle and styles are discussed to provide instructional design guidelines which accommodate each stage of the learning cycles and individual differences between DTT in processing and presenting information and knowledge. In addition, issues on teacher education, distance learning, individual differences, and ways in which the ‘differences’ can be accommodated when designing learning materials for DTT are also discussed. This paper resonates the idea and belief that if attempts are made to match learning styles of DTTs and andragogy with content to be learned, distance teacher educators (DTEs and instructors can develop better instructional materials with greater prospects of success. Getting to know and understand the teacher trainees and their learning process involved must first be addressed to facilitate the diverse needs of the Malaysian teacher

  3. Enhancing student schematic knowledge of culture through literature circles in a foreign language classroom

    Directory of Open Access Journals (Sweden)

    Graham-Marr Alastair

    2015-01-01

    Full Text Available Improving student understanding of a foreign language culture is anything but a peripheral issue in the teaching of a foreign language. This pilot study reports on a second year required English course in a university in Japan that took a Literature Circles approach, where students were asked to read short stories out of class and then discuss these stories in class. Although students reported that they did not gain any special insights into the target language culture presented, they did report that reading fiction as source material for classroom activity helps with the acquisition of a vocabulary set that is more closely associated with lifestyle and culture. The results suggest that further study is warranted. Procedures of this pilot study are described and interpreted in the context of the English education system in Japan.

  4. A Statistical Learning Framework for Materials Science: Application to Elastic Moduli of k-nary Inorganic Polycrystalline Compounds.

    Science.gov (United States)

    de Jong, Maarten; Chen, Wei; Notestine, Randy; Persson, Kristin; Ceder, Gerbrand; Jain, Anubhav; Asta, Mark; Gamst, Anthony

    2016-10-03

    Materials scientists increasingly employ machine or statistical learning (SL) techniques to accelerate materials discovery and design. Such pursuits benefit from pooling training data across, and thus being able to generalize predictions over, k-nary compounds of diverse chemistries and structures. This work presents a SL framework that addresses challenges in materials science applications, where datasets are diverse but of modest size, and extreme values are often of interest. Our advances include the application of power or Hölder means to construct descriptors that generalize over chemistry and crystal structure, and the incorporation of multivariate local regression within a gradient boosting framework. The approach is demonstrated by developing SL models to predict bulk and shear moduli (K and G, respectively) for polycrystalline inorganic compounds, using 1,940 compounds from a growing database of calculated elastic moduli for metals, semiconductors and insulators. The usefulness of the models is illustrated by screening for superhard materials.

  5. PENGARUH STRATEGI PROJECT BASED LEARNING (PJBL TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA KELAS XI IPA PADA MATERI KOLOID

    Directory of Open Access Journals (Sweden)

    Nur Hikmah

    2016-11-01

    Full Text Available The 21st century education aims to develop the ability of intelligence of students in order to resolve the problems faced in real life. Project-Based Learning is one instructional strategies to develop the skills required in the 21st century. Through a given project, students are not only required to achieve the learning objectives that have been set, but students will be trained to face the world of work that requires their ability to access, mesintesis, communicating information, and work together to solve complex problems so as to improve the ability of students critical thinking. This research is a quasi-experimental research (quasy experiment with posttest only control group design. This research aims to determine the influence of Project Based Learning Strategy (PjBL to the critical thinking skills of students of class XI IPA at SMAN 1 Malua on colloidal material. The research population includes students of class XI IPA at SMAN 1 Malua, with random cluster sampling technique sampling. Data were analyzed using independent sample t-test in SPSS 20 for windows at the 0.05 level of significance. The result showed that the significance level of critical thinking skills of 0.001 which indicates that there are differences between students' critical thinking skills that learned using a strategy of Project Based Learning (PjBL with students that learned using conventional methods. Pendidikan abad 21 bertujuan untuk membangun kemampuan intelegensi siswa dalam pembelajaran agar mampu menyelesaikan permasalahan yang dihadapi. salah satu strategi pembelaj aran di abad 21 yang mengembangkan keterampilan siswa ialah Project Based Learning. Melalui proyek yang diberikan, siswa tidak hanya dituntut untuk mencapai tujuan pembelajaran yang telah ditetapkan, tetapi siswa akan lebih terlatih menghadapi dunia kerja yang membutuhkan kemampuan mereka dalam mengakses, mesintesis, mengomunikasikan infomasi, dan bekerja sama memecahkan masalah yang kompleks

  6. Using an Outdoor Learning Space to Teach Sustainability and Material Processes in HE Product Design

    Science.gov (United States)

    Firth, Richard; Stoltenberg, Einar; Jennings, Trent

    2016-01-01

    This "case study" of two jewellery workshops, used outdoor learning spaces to explore both its impact on learning outcomes and to introduce some key principles of sustainable working methodologies and practices. Using the beach as the classroom, academics and students from a Norwegian and Scottish (HE) product design exchange programme…

  7. Innovative Learning Environments and New Materialism: A Conjunctural Analysis of Pedagogic Spaces

    Science.gov (United States)

    Charteris, Jennifer; Smardon, Dianne; Nelson, Emily

    2017-01-01

    An Organisation for Economic Cooperation and Development research priority, innovative learning environments (ILEs) have been translated into policy and practice in 25 countries around the world. In Aotearoa/New Zealand, learning spaces are being reconceptualised in relation to this policy work by school leaders who are confronted by an impetus to…

  8. Creating Engaging Online Learning Material with the JSAV JavaScript Algorithm Visualization Library

    Science.gov (United States)

    Karavirta, Ville; Shaffer, Clifford A.

    2016-01-01

    Data Structures and Algorithms are a central part of Computer Science. Due to their abstract and dynamic nature, they are a difficult topic to learn for many students. To alleviate these learning difficulties, instructors have turned to algorithm visualizations (AV) and AV systems. Research has shown that especially engaging AVs can have an impact…

  9. Older Adults' Training Courses: Considerations for Course Design and the Development of Learning Materials

    Science.gov (United States)

    du Plessis, Karin; Anstey, Kaarin J.; Schlumpp, Arianne

    2011-01-01

    Demographic trends indicate that older adults live longer and maintain active lifestyles. The majority are educated and many enjoy the stimulation that ongoing learning opportunities present. In order for these older adults to benefit from learning opportunities, circumstances specific to these individuals (e.g. age-related decline) need to be…

  10. What Is the Impact of Online Resource Materials on Student Self-Learning Strategies?

    Science.gov (United States)

    Dowell, David John; Small, Felicity A.

    2011-01-01

    The purpose of this article is to examine how students are incorporating online resources into their self-regulated learning strategies. The process of developing these learning strategies and the importance of these strategies has been widely researched, but there has been little empirical research into how the students are affected by online…

  11. Pre-big-bang cosmology and circles in the cosmic microwave background

    International Nuclear Information System (INIS)

    Nelson, William; Wilson-Ewing, Edward

    2011-01-01

    We examine the possibility that circles in the cosmic microwave background could be formed by the interaction of a gravitational wave pulse emitted in some pre-big-bang phase of the universe with the last scattering surface. We derive the expected size distribution of such circles, as well as their typical ring width and (for concentric circles) angular separation. We apply these results, in particular, to conformal cyclic cosmology, ekpyrotic cosmology as well as loop quantum cosmology with and without inflation in order to determine how the predicted geometric properties of these circles would vary from one model to the other, and thus, if detected, could allow us to differentiate between various pre-big-bang cosmological models. We also obtain a relation between the angular ring width and the angular radius of such circles that can be used in order to determine whether or not circles observed in the cosmic microwave background are due to energetic pre-big-bang events.

  12. Community Based Learning and Civic Engagement: Informal Learning among Adult Volunteers in Community Organizations

    Science.gov (United States)

    Mundel, Karsten; Schugurensky, Daniel

    2008-01-01

    Many iterations of community based learning employ models, such as consciousness raising groups, cultural circles, and participatory action research. In all of them, learning is a deliberate part of an explicit educational activity. This article explores another realm of community learning: the informal learning that results from volunteering in…

  13. Drawing Euler Diagrams with Circles: The Theory of Piercings.

    Science.gov (United States)

    Stapleton, Gem; Leishi Zhang; Howse, John; Rodgers, Peter

    2011-07-01

    Euler diagrams are effective tools for visualizing set intersections. They have a large number of application areas ranging from statistical data analysis to software engineering. However, the automated generation of Euler diagrams has never been easy: given an abstract description of a required Euler diagram, it is computationally expensive to generate the diagram. Moreover, the generated diagrams represent sets by polygons, sometimes with quite irregular shapes that make the diagrams less comprehensible. In this paper, we address these two issues by developing the theory of piercings, where we define single piercing curves and double piercing curves. We prove that if a diagram can be built inductively by successively adding piercing curves under certain constraints, then it can be drawn with circles, which are more esthetically pleasing than arbitrary polygons. The theory of piercings is developed at the abstract level. In addition, we present a Java implementation that, given an inductively pierced abstract description, generates an Euler diagram consisting only of circles within polynomial time.

  14. PERANGKAT PEMBELAJARAN PROBLEM BASED LEARNING BERORIENTASI GREEN CHEMISTRY MATERI HIDROLISIS GARAM UNTUK MENGEMBANGKAN SOFT SKILL KONSERVASI SISWA

    Directory of Open Access Journals (Sweden)

    A. Rosita

    2014-10-01

    Full Text Available Penelitian ini bertujuan untuk mengembangkan perangkat pembelajaran problem based learning berorientasi green chemistry pada materi hidrolisis garam untuk mengembangkan soft skill konservasi siswa SMA. Metode penelitian ini adalah research and development (R&D. Hasil penelitian menunjukkan LKS yang dikembangkan sangat layak untuk digunakan dalam pembelajaran kimia. Perangkat pembelajaran dapat meningkatkan pemahaman konsep siswa materi hidrolisis garam dengan N-gain sebesar 0,63 (sedang. Peningkatan soft skill konservasi siswa yang berkriteria tinggi sebanyak 35,48 % sedangkan yang berkriteria sedang 64,52 %. This research has aim to developt teaching and learning instrument application on problem based learning which oriented on green chemistry on salt hydrolisys for developing conservation soft skill for student. The method of this research is research and development (R&D. The results showed a very worthy worksheets developed for use in teaching chemistry. Teaching instrument can improve the understanding of student concept of salt hydrolysis matery can get N-gain 0,63 (medium. The improving soft skill of student conservation has high criteria 35,48%. For medium has 64,52%.

  15. A fast hybrid methodology based on machine learning, quantum methods, and experimental measurements for evaluating material properties

    Science.gov (United States)

    Kong, Chang Sun; Haverty, Michael; Simka, Harsono; Shankar, Sadasivan; Rajan, Krishna

    2017-09-01

    We present a hybrid approach based on both machine learning and targeted ab-initio calculations to determine adhesion energies between dissimilar materials. The goals of this approach are to complement experimental and/or all ab-initio computational efforts, to identify promising materials rapidly and identify in a quantitative manner the relative contributions of the different material attributes affecting adhesion. Applications of the methodology to predict bulk modulus, yield strength, adhesion and wetting properties of copper (Cu) with other materials including metals, nitrides and oxides is discussed in this paper. In the machine learning component of this methodology, the parameters that were chosen can be roughly divided into four types: atomic and crystalline parameters (which are related to specific elements such as electronegativities, electron densities in Wigner-Seitz cells); bulk material properties (e.g. melting point), mechanical properties (e.g. modulus) and those representing atomic characteristics in ab-initio formalisms (e.g. pseudopotentials). The atomic parameters are defined over one dataset to determine property correlation with published experimental data. We then develop a semi-empirical model across multiple datasets to predict adhesion in material interfaces outside the original datasets. Since adhesion is between two materials, we appropriately use parameters which indicate differences between the elements that comprise the materials. These semi-empirical predictions agree reasonably with the trend in chemical work of adhesion predicted using ab-initio techniques and are used for fast materials screening. For the screened candidates, the ab-initio modeling component provides fundamental understanding of the chemical interactions at the interface, and explains the wetting thermodynamics of thin Cu layers on various substrates. Comparison against ultra-high vacuum (UHV) experiments for well-characterized Cu/Ta and Cu/α-Al2O3 interfaces is

  16. Edges and vertices in a unique signed circle in a signed graph

    Directory of Open Access Journals (Sweden)

    Richard Behr

    2017-12-01

    Full Text Available We examine the conditions under which a signed graph contains an edge or a vertex that is contained in a unique negative circle or a unique positive circle. For an edge in a unique signed circle, the positive and negative case require the same structure on the underlying graph, but the requirements on the signature are different. We characterize the structure of the underlying graph necessary to support such an edge in terms of bridges of a circle. We then use the results from the edge version of the problem to help solve the vertex version.

  17. Evidence-based interventions for reading and language difficulties: creating a virtuous circle.

    Science.gov (United States)

    Snowling, Margaret J; Hulme, Charles

    2011-03-01

    BACKGROUND. Children may experience two very different forms of reading problem: decoding difficulties (dyslexia) and reading comprehension difficulties. Decoding difficulties appear to be caused by problems with phonological (speech sound) processing. Reading comprehension difficulties in contrast appear to be caused by problems with 'higher level' language difficulties including problems with semantics (including deficient knowledge of word meanings) and grammar (knowledge of morphology and syntax). AIMS. We review evidence concerning the nature, causes of, and treatments for children's reading difficulties. We argue that any well-founded educational intervention must be based on a sound theory of the causes of a particular form of learning difficulty, which in turn must be based on an understanding of how a given skill is learned by typically developing children. Such theoretically motivated interventions should in turn be evaluated in randomized controlled trials (RCTs) to establish whether they are effective, and for whom. RESULTS. There is now considerable evidence showing that phonologically based interventions are effective in ameliorating children's word level decoding difficulties, and a smaller evidence base showing that reading and oral language (OL) comprehension difficulties can be ameliorated by suitable interventions to boost vocabulary and broader OL skills. CONCLUSIONS. The process of developing theories about the origins of children's educational difficulties and evaluating theoretically motivated treatments in RCTs, produces a 'virtuous circle' whereby theory informs practice, and the evaluation of effective interventions in turn feeds back to inform and refine theories about the nature and causes of children's reading and language difficulties. ©2010 The British Psychological Society.

  18. NEW MATERIALS FOR PEDAGOGICAL TEACHING-LEARNING IN BIOCHEMISTRY: MONITORING PARTICIPATION

    OpenAIRE

    Campos, R. S.; Fernandes, I. L.; Andrade, G. P.V.; Matta, L. D.M.; Filgueira, L. G.A.

    2015-01-01

    This summary consists of an experience report about actions taken by biochemical monitors with pharmacy students. The reason of our work was the intention to both improve the process of teaching and also learning and invalidate the labels owned by biochemistry of hard and high-level-failure subject. The three actors: teachers, students and monitor could act on an integrated basis for the construction of an articulated  pedagogical process between theory/practice and learning signification. Ou...

  19. EFL Teachers' Knowledge of the Use and Development of Computer-Assisted Language Learning (CALL) Materials

    Science.gov (United States)

    Dashtestani, Reza

    2014-01-01

    Even though there are a plethora of CALL materials available to EFL teachers nowadays, very limited attention has been directed toward the issue that most EFL teachers are merely the consumers of CALL materials. The main challenge is to equip EFL teachers with the required CALL materials development skills to enable them to be contributors to CALL…

  20. Elementary Students' Learning of Materials Science Practices through Instruction Based on Engineering Design Tasks

    Science.gov (United States)

    Wendell, Kristen Bethke; Lee, Hee-Sun

    2010-01-01

    Materials science, which entails the practices of selecting, testing, and characterizing materials, is an important discipline within the study of matter. This paper examines how third grade students' materials science performance changes over the course of instruction based on an engineering design challenge. We conducted a case study of nine…

  1. The separate and collective effects of personalization, personification, and gender on learning with multimedia chemistry instructional materials

    Science.gov (United States)

    Halkyard, Shannon

    Chemistry is a difficult subject to learn and teach for students in general. Additionally, female students are under-represented in chemistry and the physical sciences. Within chemistry, atomic and electronic structure is a key concept and several recommendations in the literature describe how this topic can be taught better. These recommendations can be employed in multimedia instructional materials designed following principles understood through the Cognitive Theory of Multimedia Learning. Additionally, these materials can expand the known use of principles like personalization (addressing the learner as "you") and test prospective design principles like personification (referring to abstract objects like atoms as "she" or "he"). The purpose of this study was to use the recommendations on teaching atomic and electronic structure along with known multimedia design principles to create multimedia chemistry learning materials that can be used to test the use of personalization and personification both separately and together. The study also investigated how learning with these materials might be different for male and female students. A sample of 329 students from private northern California high schools were given an atomic structure pre-test, watched a multimedia chemistry instructional video, and took a post-test on atomic structure. Students were randomly assigned to watch one of six versions of the instructional video. Students in the six groups were compared using ANOVA procedures and no significant differences were found. Males were compared to females for the six different treatment conditions and the most significant difference was for the treatment that combined personalization (you) and female personification (she), with a medium effect size (Cohen's d=0.65). Males and females were then compared separately across the six groups using ANOVA procedures and t-tests. A significant difference was found for female students using the treatment that combined

  2. The Validity of the earth and space science learning materials with orientation on multiple intelligences and character education

    Science.gov (United States)

    Liliawati, W.; Utama, J. A.; Ramalis, T. R.; Rochman, A. A.

    2018-03-01

    Validation of the Earth and Space Science learning the material in the chapter of the Earth's Protector based on experts (media & content expert and practitioners) and junior high school students' responses are presented. The data came from the development phase of the 4D method (Define, Design, Develop, Dissemination) which consist of two steps: expert appraisal and developmental testing. The instrument employed is rubric of suitability among the book contents with multiple intelligences activities, character education, a standard of book assessment, a questionnaires and close procedure. The appropriateness of the book contents with multiple intelligences, character education and standard of book assessment is in a good category. Meanwhile, students who used the book in their learning process gave a highly positive response; the book was easy to be understood. In general, the result of cloze procedure indicates high readability of the book. As our conclusion is the book chapter of the Earth's Protector can be used as a learning material accommodating students’ multiple intelligences and character internalization.

  3. Circle Hough transform implementation for dots recognition in braille cells

    Science.gov (United States)

    Jacinto Gómez, Edwar; Montiel Ariza, Holman; Martínez Sarmiento, Fredy Hernán.

    2017-02-01

    This paper shows a technique based on CHT (Circle Hough Transform) to achieve the optical Braille recognition (OBR). Unlike other papers developed around the same topic, this one is made by using Hough Transform to process the recognition and transcription of Braille cells, proving CHT to be an appropriate technique to go over different non-systematics factors who can affect the process, as the paper type where the text to traduce is placed, some lightning factors, input image resolution and some flaws derived from the capture process, which is realized using a scanner. Tests are performed with a local database using text generated by visual nondisabled people and some transcripts by sightless people; all of this with the support of National Institute for Blind People (INCI for their Spanish acronym) placed in Colombia.

  4. Asymptotically stable phase synchronization revealed by autoregressive circle maps

    Science.gov (United States)

    Drepper, F. R.

    2000-11-01

    A specially designed of nonlinear time series analysis is introduced based on phases, which are defined as polar angles in spaces spanned by a finite number of delayed coordinates. A canonical choice of the polar axis and a related implicit estimation scheme for the potentially underlying autoregressive circle map (next phase map) guarantee the invertibility of reconstructed phase space trajectories to the original coordinates. The resulting Fourier approximated, invertibility enforcing phase space map allows us to detect conditional asymptotic stability of coupled phases. This comparatively general synchronization criterion unites two existing generalizations of the old concept and can successfully be applied, e.g., to phases obtained from electrocardiogram and airflow recordings characterizing cardiorespiratory interaction.

  5. G2 cubic transition between two circles with shape control

    Science.gov (United States)

    Habib, Zulfiqar; Sakai, Manabu

    2009-01-01

    This paper describes a method for joining two circles with an S-shaped or with a broken back C-shaped transition curve, composed of at most two spiral segments. In highway and railway route design or car-like robot path planning, it is often desirable to have such a transition. It is shown that a single cubic curve can be used for blending or for a transition curve preserving G2 continuity with local shape control parameter and more flexible constraints. Provision of the shape parameter and flexibility provide freedom to modify the shape in a stable manner which is an advantage over previous work by Meek, Walton, Sakai and Habib.

  6. The Virtuous Circles of Clinical Information Systems: a Modern Utopia.

    Science.gov (United States)

    Degoulet, P

    2016-11-10

    Clinical information systems (CIS) are developed with the aim of improving both the efficiency and the quality of care. This position paper is based on the hypothesis that such vision is partly a utopian view of the emerging eSociety. Examples are drawn from 15 years of experience with the fully integrated Georges Pompidou University Hospital (HEGP) CIS and temporal data series extracted from the data warehouses of Assistance Publique - Hôpitaux de Paris (AP-HP) acute care hospitals which share the same administrative organization as HEGP. Three main virtuous circles are considered: user satisfaction vs. system use, system use vs. cost efficiency, and system use vs quality of care. In structural equation models (SEM), the positive bidirectional relationship between user satisfaction and use was only observed in the early HEGP CIS deployment phase (first four years) but disappeared in late post-adoption (≥8 years). From 2009 to 2013, financial efficiency of 20 AP-HP hospitals evaluated with stochastic frontier analysis (SFA) models diminished by 0.5% per year. The lower decrease of efficiency observed between the three hospitals equipped with a more mature CIS and the 17 other hospitals was of the same order of magnitude than the difference observed between pediatric and non-pediatric hospitals. Outcome quality benefits that would bring evidence to the system use vs. quality loop are unlikely to be obtained in a near future since they require integration with population-based outcome measures including mortality, morbidity, and quality of life that may not be easily available. Barriers to making the transformation of the utopian part of the CIS virtuous circles happen should be overcome to actually benefit the emerging eSociety.

  7. Pengaruh Learning Cycle–5E Berkonteks SSI Terhadap Pemahaman Hakikat Sains Pada Materi Larutan Penyangga Dan Hidrolisis Garam Siswa SMA

    Directory of Open Access Journals (Sweden)

    Eris Ratnawati

    2017-03-01

    Key words: Learning Cycle-5E , Socioscientific Issues, Nature Of Science, Buffer Solution, Salt Hydrolysis   Abstrak: Penelitian ini bertujuan menguji perbedaan pemahaman hakikat sains siswa yang dibelajarkan dengan model pembelajaran Learning Cycle-5E berkonteks SSI dan model pembelajaran konvensional pada materi larutan penyangga dan hidrolisis garam. Penelitian ini menggunakan rancangan penelitian eksperimen semu dengan pretes dan pascates. Sampel terdiri dari dua kelas dan dipilih menggunakan teknik convenience sampling di SMAN Tulungagung. Data diperoleh menggunakan instrumen angket hakikat sains berskala likert (R = 0,883 dan dianalisis dengan ANCOVA satu jalur dan effect size. Hasil penelitian menunjukkan ada perbedaan signifikan pemahaman hakikat sains siswa yang dibelajarkan dengan model pembelajaran Learning Cycle-5E berkonteks SSI dan model pembelajaran konvensional. Berdasarkan effect size, aspek hakikat sains yang berkontribusi tinggi adalah metode ilmiah, empiris, inferensi, dimensi sosial sains, dan penerapan sains dalam bidang sosbud. Aspek hakikat sains yang berkontribusi sedang adalah tentatif, kreatif, dan theory driven. Sedangkan hukum dan teori berkontribusi kecil. Kata kunci: Learning Cycle-5E , Socioscientific Issues, Hakikat Sains, Larutan Penyangga, Hidrolisis Garam

  8. The Use of Collaboration, Authentic Learning, Linking Material to Personal Knowledge, and Technology in the Constructivist Classroom: Interviews with Community College Faculty Members

    Science.gov (United States)

    Zielinski, Dianne E.

    2017-01-01

    This study explored how faculty members implemented constructivist teaching methods after training. The student-centered teaching methods were interactions and collaborations, authentic learning and real-world experiences, linking material to previously learned information, and using technology in the classroom. Seven faculty members trained in…

  9. Literature Circles in 18. Century; As a Cultural Centers of Istanbul: The Role of "Literature Circles" in the Transmission of The Cultural Heritage

    Directory of Open Access Journals (Sweden)

    Zehra ÖKSÜZ

    2015-08-01

    Full Text Available The aim of this study is to explore the particular examples of literature circles which were seen as wisdom centre and were influential in 18th century Ottoman social and cultural life. This study foc uses on the literature circles in the capital of Ottomans and examines their roles in the transmission of cultural heritage. Mahfil, which means the meeting place, became the centre of literature activities which are performed in a particular place. This li terature circles gained the status of being a prestigious literature and art centre which witnessed the creation of significant works in 18th. They functioned as a transmitter of culture in terms of the works studied and role model literary figures. Patron age tradition promoted the progress of literary activities in the circles. With regard to their significant contribution to the Ottoman culture and civilization, literature circles emerged at the patronage of Sultan III. Ahmed, Sultan III. Selim, Sadrazam Nevşehirli Damad İbrahim Paşa, Sadrazam Koca Râgıb Paşa, Hoca Neş’et Efendi, Şeyh Gâlib, Hoca Süleyman Vahyî. Therefore, it is essential to study these circles in terms of its importance as being home to important literary figures with a sophisticated sen se of art.

  10. Diffraction Studies from Minerals to Organics - Lessons Learned from Materials Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Whitfield, Pamela S [ORNL

    2014-01-01

    In many regards the study of materials and minerals by powder diffraction techniques are complimentary, with techniques honed in one field equally applicable to the other. As a long-time materials researcher many of the examples are of techniques developed for materials analysis applied to minerals. However in a couple of cases the study of new minerals was the initiation into techniques later used in materials-based studies. Hopefully they will show that the study of new minerals structures can provide opportunities to add new methodologies and approaches to future problems. In keeping with the AXAA many of the examples have an Australian connection, the materials ranging from organics to battery materials.

  11. On the minimal travel time needed to collect n items on a circle

    NARCIS (Netherlands)

    Litvak, Nelly; van Zwet, Willem R.

    2004-01-01

    Consider n items located randomly on a circle of length 1. The locations of the items are assumed to be independent and uniformly distributed on [0,1). A picker starts at point 0 and has to collect all n items by moving along the circle at unit speed in either direction. In this paper we study the

  12. On the minimal travel time needed to collect $n$ items on a circle

    NARCIS (Netherlands)

    Litvak, Nelli; van Zwet, Willem R.; van der Geer, Sarah; Wegkamp, Marten

    2012-01-01

    Consider $n$ items located randomly on a circle of length 1. The locations of the items are assumed to be independent and uniformly distributed on $[0,1)$. A picker starts at point 0 and has to collect all n items by moving along the circle at unit speed in either direction. In this paper we study

  13. On the minimal travel time needed to collect n items on a circle

    NARCIS (Netherlands)

    Litvak, Nelli; van Zwet, W.R.

    2002-01-01

    Consider n items located randomly on a circle of length 1. The locations of the items are assumed to be independent and uniformly distributed on [0, 1). A picker starts at point 0, and he has to collect all n items by moving along the circle at unit speed in either direction. In this paper we study

  14. Providing a Full Circle of Support to Teachers in an Inclusive Elementary School

    Science.gov (United States)

    Waldron, Nancy L.; Redd, Lacy

    2011-01-01

    Providing a full circle of support to teachers in an inclusive elementary school, the Newberry Elementary School (NES) principal and staff have worked for 5 years to ensure the inclusion of students with disabilities in general education classrooms. The authors would like to share their perceptions of how this full circle (the multiple systems) of…

  15. Quality Circles: How Effective Are They in Improving Employee Performance and Attitudes?

    Science.gov (United States)

    Buch, Kimberly; Raban, Amiram

    1990-01-01

    Used a quasi-experimental design to assess the effect of a quality circle intervention on behavior and attitudes of 88 employees at a large Midwestern organization. Results provide mixed support for the purported ability of circles to improve work behavior with no change for absenteeism and productivity but positive change for quality of work.…

  16. A surface containing a line and a circle through each point is a quadric

    KAUST Repository

    Nilov, Fedor K.; Skopenkov, Mikhail

    2012-01-01

    We prove that a surface in 3-dimensional Euclidean space containing a line and a circle through each point is a quadric. We also give some particular results on the classification of surfaces containing several circles through each point. © 2012 Springer Science+Business Media B.V.

  17. Exploring Writing Circles as Innovative, Collaborative Writing Structures with Teacher Candidates

    Science.gov (United States)

    Roberts, Sherron Killingsworth; Blanch, Norine; Gurjar, Nandita

    2017-01-01

    Writing circles are "small groups... meeting regularly to share drafts, choose common writing topics, practice positive response, and in general, help each other become better writers" (Vopat, 2009, p. 6). In this exploratory study, writing circles were employed with elementary teacher candidates in hopes of enhancing their perceptions…

  18. 77 FR 55691 - Establishment of Class E Airspace; Circle Town, MT

    Science.gov (United States)

    2012-09-11

    ... (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Circle Town County..., at Circle Town County Airport, to accommodate IFR aircraft executing new RNAV (GPS) standard..., Washington on August 30, 2012. Steven L. Vale, Acting Manager, Operations Support Group, Western Service...

  19. A surface containing a line and a circle through each point is a quadric

    KAUST Repository

    Nilov, Fedor K.

    2012-06-20

    We prove that a surface in 3-dimensional Euclidean space containing a line and a circle through each point is a quadric. We also give some particular results on the classification of surfaces containing several circles through each point. © 2012 Springer Science+Business Media B.V.

  20. Linearly Recurrent Circle Map Subshifts and an Application to Schrödinger Operators

    CERN Document Server

    Adamczewski, B

    2001-01-01

    We discuss circle map sequences and subshifts generated by them. We give a characterization of those sequences among them which are linearly recurrent. As an application we deduce zero-measure spectrum for a class of discrete one-dimensional Schrödinger operators with potentials generated by circle maps.

  1. Migraine without aura is not associated with incomplete circle of Willis

    DEFF Research Database (Denmark)

    Ezzatian-Ahar, Shabnam; Amin, Faisal Mohammad; Obaid, Hayder Ghani

    2014-01-01

    the prevalence of incomplete circle of Willis in migraineurs and controls. In the present study we compared the prevalence of incomplete circle of Willis in female migraine patients without aura to female healthy non-migraine controls.Using 3-Tesla magnetic resonance angiography we recorded three...

  2. The position of teaching materials on the monitor and its effect on the e-learning success

    Directory of Open Access Journals (Sweden)

    Janko Žufić

    2011-06-01

    Full Text Available Normal 0 21 false false false MicrosoftInternetExplorer4 Normal 0 21 false false false MicrosoftInternetExplorer4 There are various elements in designing e-teaching materials that could have an impact in raising the efficiency of e-learning. This paper is based on the experiments aiming to investigate whether there are certain positions on the monitor in which students are able to better perceive and/or remember e-teaching materials. Our research was carried out at the Juraj Dobrila University of Pula. Participants were first year students attending the teacher education programme (aged 19.5 – 20.5. The research design included two pre-experimental groups and one experimental group. The monitor was virtually divided into 24 zones. Students read the teaching material displayed on the screen; in each reading four texts in different positions were used. The relative ease/difficulty of remembering the text was taken into account by introducing different ponders to each text. Regarding the memory efficiency, our results show statistically significant differences between certain screen positions (these differences ranged from +29.6% to -42.6% from the average result. Keywords: efficient e-learning, text position on the screen

  3. Harnessing user generated multimedia content in the creation of collaborative classification structures and retrieval learning games

    Science.gov (United States)

    Borchert, Otto Jerome

    work will revolve around material development, software refinement, and theory building. Curricula, lesson plans, instructional materials need to be created to seamlessly integrate CIRCLE in a variety of courses. Further refinement of the software will focus on improving the elaboration interface and developing further game templates to add to the motivation and retrieval learning aspects of the software. Data gathered from CIRCLE experiments can be used to develop and strengthen theories on teaching and learning.

  4. Circles of Support and Accountability for Sex Offenders: A Systematic Review of Outcomes.

    Science.gov (United States)

    Clarke, Martin; Brown, Susan; Völlm, Birgit

    2017-08-01

    We conducted a systematic review of studies reporting on the effectiveness of Circles of Support and Accountability (Circles). Circles use volunteers to provide support for sex offenders living in the community. We searched 10 databases up to the end of 2013 and identified 3 relevant outcome studies. An additional 12 papers or reports were identified by searching reference lists, Google, and contacting key authors and Circles providers to obtain unpublished data. These 15 studies comprised one randomized controlled trial, three retrospective cohorts with matched controls, and 11 case series. The majority reported measures of recidivism, particularly reconviction. The 4 studies with controls generally reported that participation in Circles was associated with lower recidivism although there were few statistically significant differences. Few studies examined changes in risk or psychosocial outcomes. A number of methodological issues are discussed. Longer term, prospective follow-up studies with control groups are required to address these issues.

  5. Swimming Lessons: Learning, New Materialisms, Posthumanism, and Post Qualitative Research Emerge through a Pool Poem

    Science.gov (United States)

    McKnight, Lucinda

    2016-01-01

    This article shifts from the formal learning spaces of school and university to an Australian public swimming pool to playfully engage some of the dilemmas that recent theory poses for curriculum studies. The article enacts multiple diffractions (Barad, 2007) as theory becomes swimming and swimming becomes theory, and ideas and movements are…

  6. Fifth Graders' Learning about Simple Machines through Engineering Design-Based Instruction Using LEGO™ Materials

    Science.gov (United States)

    Marulcu, Ismail; Barnett, Mike

    2013-01-01

    This study is part of a 5-year National Science Foundation-funded project, Transforming Elementary Science Learning Through LEGO™ Engineering Design. In this study, we report on the successes and challenges of implementing an engineering design-based and LEGO™-oriented unit in an urban classroom setting and we focus on the impact of the unit on…

  7. Teaching materials on language endangerment, an interactive e-learning module on the internet

    NARCIS (Netherlands)

    Odé, C.; de Graaf, T.; Ostler, N.; Salverda, R.

    2008-01-01

    In 2007, in the framework of the NWO (Netherlands Organisation for Scientific Research) Research Programme on Endangered Languages, an interactive e-learning module has been developed on language endangerment. The module for students in secondary schools (15-18 years of age) is available free of

  8. Characteristics of Criterion-Referenced Instruments: Implications for Materials Selection for the Learning Disabled.

    Science.gov (United States)

    Blasi, Joyce F.

    Discussed are characteristics of criterion referenced reading tests for use with learning disabled (LD) children, and analyzed are the Basic Educational Skills Inventory (BESI), the Prescriptive Reading Inventory (PRI), and the Cooper-McGuire Diagnostic Work-Analysis Test (CooperMcGuire). Criterion referenced tests are defined; and problems in…

  9. A Typology of Agency in New Generation Learning Environments: Emerging Relational, Ecological and New Material Considerations

    Science.gov (United States)

    Charteris, Jennifer; Smardon, Dianne

    2018-01-01

    The impetus to move to a new generation learning environments places a spotlight on the relational dynamics of classroom spaces. A key feature is the notion of learner agency. A complex notion, learner agency involves both compliance with and resistance to classroom norms and therefore is far more sophisticated than acting in acquiescence to…

  10. Cognitive Constraints on Multimedia Learning: When Presenting More Material Results in Less Understanding.

    Science.gov (United States)

    Mayer, Richard E.; Heiser, Julie; Lonn, Steve

    2001-01-01

    Presents research on and discusses the redundancy effect, consistent with a dual-channel theory of multimedia learning in which adding on-screen text can overload the visual information-processing channel, causing learners to split their visual attention between two sources. In research, lower transfer performance also occurred when interesting…

  11. Interculturality and the Study Abroad Experience: Students' Learning from the IEREST Materials

    Science.gov (United States)

    Holmes, Prue; Bavieri, Luisa; Ganassin, Sara; Murphy, Jonathon

    2016-01-01

    This study investigated how a "while abroad" (IEREST) intercultural experiential learning programme (i) encouraged mobile student sojourners to explore the concept of "interculturality"; (ii) promoted their intercultural engagement/communication during their stay abroad; and (iii) invited them to reflect on their own…

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

    Science.gov (United States)

    Koshino, Makoto; Kojima, Yuki; Kanedera, Noboru

    2013-01-01

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

  13. Heritability of circle of Willis variations in families with intracranial aneurysms.

    Directory of Open Access Journals (Sweden)

    Mayte Sánchez van Kammen

    Full Text Available Intracranial aneurysms more often occur in the same arterial territory within families. Several aneurysm locations are associated with specific circle of Willis variations. We investigated whether the same circle of Willis variations are more likely to occur in first-degree relatives than in unrelated individuals.We assessed four circle of Willis variations (classical, A1-asymmetry, incomplete posterior communicating artery and fetal circulation in two independent groups of families with familial aneurysms and ≥2 first-degree relatives with circle of Willis imaging on MRA/CTA. In each (index family we determined the proportion of first-degree relatives with the same circle of Willis variation as the proband and compared it to the proportion of first-degree relatives of a randomly selected unrelated (comparison family who had the same circle of Willis variation as the index family's proband. Concordance in index families and comparison families was compared with a conditional logistic events/trials model. The analysis was simulated 1001 times; we report the median concordances, odds ratios (ORs, and 95% confidence intervals (95%CI. The groups were analysed separately and together by meta-analysis.We found a higher overall concordance in circle of Willis configuration in index families than in comparison families (meta-analysis, 244 families: OR 2.2, 95%CI 1.6-3.0 mostly attributable to a higher concordance in incomplete posterior communicating artery (meta-analysis: OR 2.8, 95%CI 1.8-4.3. No association was found for the other three circle of Willis variations.In two independent groups of families with familial aneurysms, the incomplete PcomA variation occurred more often within than between families suggesting heritability of this circle of Willis variation. Further studies should investigate genetic variants associated with circle of Willis formation.

  14. Learning Specific Content in Technology Education: Learning Study as a Collaborative Method in Swedish Preschool Class Using Hands-On Material

    Science.gov (United States)

    Kilbrink, Nina; Bjurulf, Veronica; Blomberg, Ingela; Heidkamp, Anja; Hollsten, Ann-Christin

    2014-01-01

    This article describes the process of a learning study conducted in technology education in a Swedish preschool class. The learning study method used in this study is a collaborative method, where researchers and teachers work together as a team concerning teaching and learning about a specific learning object. The object of learning in this study…

  15. Implementing Collaborative Learning Methods in the Political Science Classroom

    Science.gov (United States)

    Wolfe, Angela

    2012-01-01

    Collaborative learning is one, among other, active learning methods, widely acclaimed in higher education. Consequently, instructors in fields that lack pedagogical training often implement new learning methods such as collaborative learning on the basis of trial and error. Moreover, even though the benefits in academic circles are broadly touted,…

  16. Development of Instructional Materials for Electrochemical Module Class XII Science High School Students with Guided Inquiry Learning Approach

    Directory of Open Access Journals (Sweden)

    Lilik Fatmawati

    2014-06-01

    Full Text Available Pengembangan Bahan Ajar Modul Elektrokimia untuk Siswa SMA Kelas XII IPA dengan Pendekatan Pembelajaran Inkuiri Terbimbing Abstract: The aim of this study was to determine the feasibility and effectiveness of the electrochemical module for high school students of class XII results of development. Electrochemical module of the development consists of two learning activities, ie to the material Volta cells and electrolysis cells for the material. Results of the assessment by two chemistry lecturer, State University of Malang and two chemistry teachers XII as an expert content / learning material for eligibility contents was 92.9%, for eligibility and completeness of presentation is 91.1%, and for the eligibility of language is 92.3% , which is classified as very feasible criteria. Overall the average value was 92.1 feasibility. Effectiveness module is indicated by the results of the development of perception and student learning outcomes. Students' perceptions obtained from student assessment results to module development. In the limited field trials obtained average value is 81.8 for all aspects of the maximum value of 100. Obtaining the average value of student learning outcomes for the cognitive aspect is 83.3, for the affective aspect is 82.3, and for the psychomotor aspect is 83.8 out of 100. The maximum value of the overall results of the study showed that the electrochemical module for high school students Class XII Science development results are very decent and very effectively used in the learning process. Key Words: guided inquiry, electrochemical module, model 4-D Abstrak: Tujuan penelitian ini adalah mengetahui kelayakan, dan keefektifan modul elektrokimia untuk siswa SMA kelas XII hasil pengembangan. Modul Elektrokimia hasil pengembangan terdiri dari dua kegiatan belajar, yaitu untuk materi sel Volta dan untuk materi sel elektrolisis. Hasil penilaian oleh dua dosen kimia Universitas Negeri Malang dan dua guru kimia kelas XII sebagai

  17. The role of Circle women in curbing violence against women and girls in Africa

    Directory of Open Access Journals (Sweden)

    Sylvia Owusu-Ansah

    2016-07-01

    Full Text Available The article looks at the role Circle of Concerned African Women Theologians (the Circle have played in the struggle to end or reduce the rate at which violence against women and girls occurs in West Africa by highlighting the contributions of older Circle women, especially the initiator of the Circle, Mercy Amba Oduyoye. The initiator of the Circle and other older Circle women have left a remarkable legacy that needs to continue by the current and future generations of the Circle. The background information examines the leadership and mentorship of Mercy Amba Oduyoye and the impact she has made in the lives of African women. The essay then looks at the types of violence that women face in West Africa with the specific contributions of Circle women in the struggle to end violence against women and girls. It then argues that Circle women have played very significant roles both in setting the pace and giving the platform for women activities to minimise gender-based violence against women and girls. Circle women have written and presented papers that have addressed many challenges including HIV and/or AIDS, Girl Child trafficking, Marriage of Minors, and almost all kinds of violence against women and girls. Currently, religious violence threatens the fabric of African nations causing insecurity and panic, women and girls being the most vulnerable. The challenge to the present and future Circle members is to contribute in significant ways towards religious harmony in Africa and beyond. The Circle acknowledges the leadership role of women and encourages them to spearhead the liberation of women as well as empower them to be able to aspire to get to the top or become independent. No one understands what someone else feels better than the person experiencing the ordeal. Women can better understand what they go through and also have the passion to strive towards liberation.Intradisciplinary and/or interdisciplinary implications: In this article, the

  18. the art of preview in appropriate teaching/learning material selection

    African Journals Online (AJOL)

    USER

    Abstract. This study recognised the importance of print materials and texts in effective and ... As previewers, they ought to look into the external and internal .... detailed information, the reading techniques will change to suit the purposes.

  19. The Effect of Subsuming Concepts on Student Achievement on Unfamiliar Science Learning Material

    Science.gov (United States)

    Graber, Richard A.; And Others

    1972-01-01

    Presents data that contradict the facilitating effect of advanced organizers demonstrated in 1960 by Ausubel when using the same materials. Suggests possible reasons for the discrepancy and lists conditions where organizers may be effective. (AL)

  20. The experimentation of LC7E learning model on the linear program material in terms of interpersonal intelligence on Wonogiri Vocational School students

    Science.gov (United States)

    Antinah; Kusmayadi, T. A.; Husodo, B.

    2018-03-01

    This study aimed to determine the effect of learning model on student achievement in terms of interpersonal intelligence. The compared learning models are LC7E and Direct learning model. This type of research is a quasi-experimental with 2x3 factorial design. The population in this study is a Grade XI student of Wonogiri Vocational Schools. The sample selection had done by stratified cluster random sampling. Data collection technique used questionnaires, documentation and tests. The data analysis technique used two different unequal cell variance analysis which previously conducted prerequisite analysis for balance test, normality test and homogeneity test. he conclusions of this research are: 1) student learning achievement of mathematics given by LC7E learning model is better when compared with direct learning; 2) Mathematics learning achievement of students who have a high level of interpersonal intelligence is better than students with interpersonal intelligence in medium and low level. Students’ mathematics learning achievement with interpersonal level of intelligence is better than those with low interpersonal intelligence on linear programming; 3) LC7E learning model resulted better on mathematics learning achievement compared with direct learning model for each category of students’ interpersonal intelligence level on linear program material.

  1. The experimentation of LC7E learning model on the linear program material in terms of interpersonal intelligence on Wonogiri vocational school students

    Science.gov (United States)

    Antinah; Kusmayadi, T. A.; Husodo, B.

    2018-05-01

    This study aims to determine the effect of learning model on student achievement in terms of interpersonal intelligence. The compared learning models are LC7E and Direct learning model. This type of research is a quasi-experimental with 2x3 factorial design. The population in this study is a Grade XI student of Wonogiri Vocational Schools. The sample selection had done by stratified cluster random sampling. Data collection technique used questionnaires, documentation and tests. The data analysis technique used two different unequal cell variance analysis which previously conducted prerequisite analysis for balance test, normality test and homogeneity test. he conclusions of this research are: 1) student learning achievement of mathematics given by LC7E learning model is better when compared with direct learning; 2) Mathematics learning achievement of students who have a high level of interpersonal intelligence is better than students with interpersonal intelligence in medium and low level. Students' mathematics learning achievement with interpersonal level of intelligence is better than those with low interpersonal intelligence on linear programming; 3) LC7E learning model resulted better on mathematics learning achievement compared with direct learning model for each category of students’ interpersonal intelligence level on linear program material.

  2. Penerapan Model Active Learning untuk Meremediasi Miskonsepsi Siswa pada Materi Gerak Lurus di SMP

    OpenAIRE

    Yulindar, Arvitri; Djudin, Tomo; Hamdani

    2017-01-01

    This study aims to determine effectiveness of remediation application of active learning models that have misconceptions on rectilinear motion in class VIII SMP Negeri 2 Pontianak. This research is the form of pre-experiment using a one group pretest-postest. The study sample consisted of 38 students of class VIII B SMP Negeri 2 Pontianak. Data collection technique used in the form of a measurement technique using multiple choice diagnostic tests with reason that have total 10 questions. The ...

  3. The use of e-learning materials for teaching computer science in primary schools

    OpenAIRE

    Benedičič, Andrej

    2015-01-01

    In the last few years the teaching in primary and secondary schools all around the world changed severely. One of the reasons for the change was the development of the information and communications technology (ICT). Nowadays we can hardly imagine teaching without the use of the ICT. Schools are equipped with electronic boards, interactive boards, tablets, voting systems and other electronic devices. The right use of these devices and electronic materials (e-materials) developed for them can ...

  4. Biocompatibility of biomaterials - Lessons learned and considerations for the design of novel materials.

    Science.gov (United States)

    Schmalz, Gottfried; Galler, Kerstin M

    2017-04-01

    Biocompatibility of dental materials has gained increasing interest during recent decades. Meanwhile, legal regulations and standard test procedures are available to evaluate biocompatibility. Herein, these developments will be exemplarily outlined and some considerations for the development of novel materials will be provided. Different aspects including test selection, release of substances, barriers, tissue healing, antibacterial substances, nanoparticles and environmental aspects will be covered. The provided information is mainly based on a review of the relevant literature in international peer reviewed journals, on regulatory documents and on ISO standards. Today, a structured and systematic approach for demonstrating biocompatibility from both a scientific and regulatory point of view is based on a clinical risk assessment in an early stage of material development. This includes the analysis of eluted substances and relevant barriers like dentin or epithelium. ISO standards 14971, 10993, and 7405 specify the modes for clinical risk assessment, test selection and test performance. In contact with breached tissues, materials must not impair the healing process. Antibacterial effects should be based on timely controllable substances or on repellant surfaces. Nanoparticles are produced by intraoral grinding irrespective of the content of nanoparticles in the material, but apparently at low concentrations. Concerns regarding environmental aspects of mercury from amalgam can be met by amalgam separating devices. The status for other materials (e.g. bisphenol-A in resin composites) needs to be evaluated. Finally, the public interest for biocompatibility issues calls for a suitable strategy of risk communication. A wise use of the new tools, especially the clinical risk assessment should aim at preventing the patients, professionals and the environment from harm but should not block the development of novel materials. However, biocompatibility must always be

  5. Teachers' opinion about learning continuum based on student's level of competence and specific pedagogical material in classification topics

    Science.gov (United States)

    Andriani, Aldina Eka; Subali, Bambang

    2017-08-01

    This research discusses learning continuum development for designing a curriculum. The objective of this study is to gather the opinion of public junior and senior high school teachers about learning continuum based on student's level of competence and specific pedagogical material in classification topics. This research was conducted in Yogyakarta province from October 2016 to January 2017. This research utilizes a descriptive survey method. Respondents in this study consist of 281 science teachers at junior and senior high school in Yogyakarta city and 4 regencies namely Sleman, Bantul, Kulonprogo, and Gunung Kidul. The sample were taken using a census. The collection of data used questionnaire that had been validated from the aspects of construct validity and experts judgements. Data were analyzed using a descriptive analysis technique. The results of the analysis show that the opinions of teachers regarding specific pedagogical material in classification topics of living things at the junior high school taught in grade VII to the ability level of C2 (Understanding). At senior high school level, it is taught in grade X with the ability level C2 (Understanding). Based on these results, it can be concluded that the opinions of teachers still refer to the current syllabus and curriculum so that the teachers do not have pure opinions about the student's competence level in classification topics that should be taught at the level of the grade in accordance with the level of corresponding competency.

  6. Teacher's opinions about learning continuum based on the student's level of competence and specific pedagogical materials on anatomical aspects

    Science.gov (United States)

    Astuti, Laili Dwi; Subali, Bambang

    2017-08-01

    This research deals with designing learning continuum for developing a curriculum. The objective of this study is to gather the opinion of public junior and high school teachers about Learning Continuum based on Student's Level of Competence and Specific Pedagogical Material on Anatomical Aspects. This is a survey research. The population of the research is natural science teachers at junior high school and biology teacher at senior high school in Yogyakarta Special Region. Data were collected using a questionnaire. Data were analyzed using a descriptive analysis technique. Based on the results of the survey, the teachers opinion are in accordance with the level of the students they teach. Junior high school teachers argued that anatomical aspects were taught in grade VII,VIII, IX and X on the level of C2 (understanding), the high school teacher argued that anatomical aspects were taught in grade VIII, X and XI on the level of C2 (understanding) and C3 (apply). While according to the opinions of primary school teachers about aspects of anatomy resulted from the research of Subali (2016), anatomy is mostly not taught at the elementary school level, only some of the materials that are taught in this school level. Therefore, the results of the survey can be inferred that the opinions of teachers is still based on the existing curriculum.

  7. Learning a specific content in technology education : Learning Study as collaborative method in Swedish preschool class using hands-on material 

    OpenAIRE

    Kilbrink, Nina; Bjurulf, Veronica; Blomberg, Ingela; Heidkamp, Anja; Hollsten, Ann-Christin

    2014-01-01

    This article describes the process of a learning study conducted in technology education in a Swedish preschool class. The learning study method used in this study is a collaborative method, where researchers and teachers work together as a team concerning teaching and learning about a specific learning object. The object of learning in this study concerns strong constructions and framed structures. This article describes how this learning study was conducted and discusses reflections made du...

  8. The Wigner semi-circle law in quantum electro dynamics

    International Nuclear Information System (INIS)

    Accardi, L.; Nagoya Univ.; Lu, Y.G.; Nagoya Univ.

    1996-01-01

    In the present paper, the basic ideas of the stochastic limit of quantum theory are applied to quantum electro-dynamics. This naturally leads to the study of a new type of quantum stochastic calculus on a Hilbert module. Our main result is that in the weak coupling limit of a system composed of a free particle (electron, atom,..) interacting, via the minimal coupling, with the quantum electromagnetic field, a new type of quantum noise arises, living on a Hilbert module rather than a Hilbert space. Moreover we prove that the vacuum distribution of the limiting field operator is not Gaussian, as usual, but a nonlinear deformation of the Wigner semi-circle law. A third new object arising from the present theory, is the so-called interacting Fock space. A kind of Fock space in which the n quanta, in the n-particle space, are not independent, but interact. The origin of all these new features is that we do not introduce the dipole approximation, but we keep the exponential response term, coupling the electron to the quantum electromagnetic field. This produces a nonlinear interaction among all the modes of the limit master field (quantum noise) whose explicit expression, that we find, can be considered as a nonlinear generalization of the Fermi golden rule. (orig.)

  9. End of the line to build a circle

    CERN Multimedia

    2006-01-01

    The installation of the cryogenic distribution line in the LHC tunnel is finally finished! All the sectors have undergone pressure and helium leak tests at room temperature, and one complete sector was cold tested in cryogenic conditions. Some of the QRL team in UJ22 of the LHC tunnel, where the last sector of the cryogenic distribution line was installed.It must have been a joyous moment in UJ22 of the LHC tunnel (near Point 2, Saint Genis Pouilly) on 19 October. This was where the last external weld of the cryogenic distribution line, also known as QRL, was made, thus completing the full distribution ring. The QRL is a circle built in 8 sectors, each approximately 3 km in length. It will circulate helium in liquid and gas phases, at different temperatures and pressures, to provide the cryogenic conditions for the superconducting magnets in the LHC tunnel. The last sector installed (sector 1-2) passed the pressure and helium leak tests at room temperature on 28 October. As part of the warm test, each sector...

  10. Kastor-Traschen black holes, null geodesics and conformal circles

    International Nuclear Information System (INIS)

    Casey, Stephen

    2012-01-01

    The Kastor-Traschen metric is a time-dependent solution of the Einstein-Maxwell equations with positive cosmological constant Λ which can be used to describe an arbitrary number of charged dynamical black holes. In this paper, we consider the null geodesic structure of this solution, in particular, focusing on the projection to the space of orbits of the timelike conformal retraction. It is found that these projected light rays arise as integral curves of a system of third-order ordinary differential equations. This system is not uniquely defined, however, and we use the inherent freedom to construct a new system whose integral curves coincide with the projection of distinguished null curves of Kastor-Traschen arising from a magnetic flow. We discuss our results in the one-centre case and demonstrate a link to conformal circles in the limit Λ → 0. We also show how to construct analytic expressions for the projected null geodesics of this metric by exploiting a well-known diffeomorphism between the K-T metric and extremal Reissner-Nordstrom-de Sitter. We make some remarks about the two-centre solution and demonstrate a link with the one-centre case. (paper)

  11. The Effectiveness of learning materials based on multiple intelligence on the understanding of global warming

    Science.gov (United States)

    Liliawati, W.; Purwanto; Zulfikar, A.; Kamal, R. N.

    2018-05-01

    This study aims to examine the effectiveness of the use of teaching materials based on multiple intelligences on the understanding of high school students’ material on the theme of global warming. The research method used is static-group pretest-posttest design. Participants of the study were 60 high school students of XI class in one of the high schools in Bandung. Participants were divided into two classes of 30 students each for the experimental class and control class. The experimental class uses compound-based teaching materials while the experimental class does not use a compound intelligence-based teaching material. The instrument used is a test of understanding of the concept of global warming with multiple choices form amounted to 15 questions and 5 essay items. The test is given before and after it is applied to both classes. Data analysis using N-gain and effect size. The results obtained that the N-gain for both classes is in the medium category and the effectiveness of the use of teaching materials based on the results of effect-size test results obtained in the high category.

  12. THE DEVELOPMENT OF ELECTRONIC TEACHING MATERIALS BY FLIPBOOK ASSISTANCE BASED PROBLEM SOLVING SKILL WITH CTL APPROACH ON LEARNING MATHEMATICS CLASS V

    Directory of Open Access Journals (Sweden)

    RUSNILAWATI Eva Gustiana RUSNILAWATI

    2018-01-01

    Full Text Available The purpose of this research is to produce Flipbook-based Electronic Teaching Materials (BAE based on problem solving skills with CTL Approach on Vocational School Class V learning valid, practical, and effective. This type of research is development research (Development Research. This research developed Flipbook-assisted Electronic Teaching Materials (BAE on the mathematics learning of Class V Primary School by using the 4-D development model developed by Thiagarajan, Semmel, and Semmel. The validation results show that the developed Teaching Materials are worthy of use with a good minimum category. The results of the experiments show that Electronic Materials developed are practical and effective. Completed learning in the classical has reached the minimum criteria of 75% that is for problem-solving test reached 86%. Based on a questionnaire of attitudes toward mathematics, 88% of students showed an increase in attitude scores on mathematics, and 85% of students showed attitudes toward mathematics with a good minimum category.

  13. Physical Education in South Africa: Have we come full circle ...

    African Journals Online (AJOL)

    Physical Education (PE) in South Africa has been on the receiving end of curriculum reform with far-reaching consequences. Prior to 1994, PE existed as a stand-alone school subject. In 1997, PE was reduced to a learning outcome of a new learning area titled, Life Orientation, within the new curriculum, Curriculum 2005.

  14. Defect characterization by an adaptive learning classifier in ultrasonic inspection of ferritic materials

    International Nuclear Information System (INIS)

    Grozellier, M.; Bieth, M.; Romy, D.

    1985-01-01

    The purpose of the work presented here is to determine the efficiency and reliability of the discrimination method ''Adapatative Learning Network''. This process is used to identify the nature of defects detected during Ultrasonic Testing (UT), by analysing some of the echo parameters calculated in temporal and frequency domains. The survey which dealt with several hundreds of echoes, revealed that the machined artificial reflectors, well defined geometrically, were identified with a probability exceeding 95 %. The fatigue cracks, producing less characteristic echoes, are identified with a slightly lower probability (90 % - 95 %)

  15. A manifold learning approach to data-driven computational materials and processes

    Science.gov (United States)

    Ibañez, Ruben; Abisset-Chavanne, Emmanuelle; Aguado, Jose Vicente; Gonzalez, David; Cueto, Elias; Duval, Jean Louis; Chinesta, Francisco

    2017-10-01

    Standard simulation in classical mechanics is based on the use of two very different types of equations. The first one, of axiomatic character, is related to balance laws (momentum, mass, energy, …), whereas the second one consists of models that scientists have extracted from collected, natural or synthetic data. In this work we propose a new method, able to directly link data to computers in order to perform numerical simulations. These simulations will employ universal laws while minimizing the need of explicit, often phenomenological, models. They are based on manifold learning methodologies.

  16. Adaptación de material educativo guiada por IMS Learning Design: experiencias con LRN

    Directory of Open Access Journals (Sweden)

    Derick Leony Arreaga

    2010-12-01

    Full Text Available La posibilidad de adaptar los materiales educativos de forma personalizada para cada alumno abre la puerta a nuevos modelos pedagógicos, cuya implementación práctica no sería realista sin el adecuado soporte informático. La creación y despliegue de este tipo de materiales se puede apoyar en el uso de plataformas específicas creadas al efecto, o en la aplicación de especificaciones generalistas dotadas de la expresividad adecuada. IMS Learning Design propone un marco de trabajo para el diseño y despliegue de flujos educativos, soportando algunas de las técnicas de adaptación existentes. Este artículo presenta una recopilación de experiencias basadas en la creación e instanciación de estrategias adaptativas basadas en el uso de IMS Learning Design, y cuyo objetivo es la determinación empírica de la expresividad de la especificación en el ámbito de la adaptación de materiales educativos.

  17. Representing Clarity: Using Universal Design Principles to Create Effective Hybrid Course Learning Materials

    Science.gov (United States)

    Spiegel, Cheri Lemieux

    2012-01-01

    This article describes how the author applied principles of universal design to hybrid course materials to increase student understanding and, ultimately, success. Pulling the three principles of universal design--consistency, color, and icon representation--into the author's Blackboard course allowed her to change the types of reading skills…

  18. Exploring the Effect of Materials Designed with Augmented Reality on Language Learners' Vocabulary Learning

    Science.gov (United States)

    Solak, Ekrem; Cakir, Recep

    2015-01-01

    The purpose of this study was to determine the motivational level of the participants in a language classroom towards course materials designed in accordance with augmented reality technology and to identify the correlation between academic achievement and motivational level. 130 undergraduate students from a state-run university in Turkey…

  19. Consecutive Course Modules Developed with Simple Materials to Facilitate the Learning of Basic Concepts in Astronomy

    Science.gov (United States)

    Okulu, Hasan Zuhtu; Oguz-Unver, Ayse

    2015-01-01

    From the perspective of teaching, the huge natural laboratory that astronomy provides constitutes the most prominent connection between astronomy and other branches of science. The purpose of this research was to provide educators with activities of observation using simple materials that were developed to facilitate the teaching of basic concepts…

  20. 3D-Printing Crystallographic Unit Cells for Learning Materials Science and Engineering

    Science.gov (United States)

    Rodenbough, Philip P.; Vanti, William B.; Chan, Siu-Wai

    2015-01-01

    Introductory materials science and engineering courses universally include the study of crystal structure and unit cells, which are by their nature highly visual 3D concepts. Traditionally, such topics are explored with 2D drawings or perhaps a limited set of difficult-to-construct 3D models. The rise of 3D printing, coupled with the wealth of…