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Sample records for lego mindstorms nxt

  1. Control Systems Lab Using a LEGO Mindstorms NXT Motor System

    Science.gov (United States)

    Kim, Y.

    2011-01-01

    This paper introduces a low-cost LEGO Mindstorms NXT motor system for teaching classical and modern control theories in standard third-year undergraduate courses. The LEGO motor system can be used in conjunction with MATLAB, Simulink, and several necessary toolboxes to demonstrate: 1) a modeling technique; 2) proportional-integral-differential…

  2. Basic concepts of automation and mechatronics with LEGO mindstorms NXT

    Directory of Open Access Journals (Sweden)

    Matijević Milan S.

    2014-01-01

    Full Text Available Mindstorsms LEGO NXT is using in engineering education at well recognized engineering schools like RWTH Aachen University where is created the RWTH - Mindstorms NXT Toolbox for Matlab. MATLAB / Simulink is widely available and popular for students around the world, but software toolboxes which are required for work with the real time systems are too expensive for the universities, especially those in developing countries. This paper describes an approach that is currently used in introductory subjects in the field of automation and mechatronics at the University of Kragujevac, and that does not require expensive software support.

  3. Introduction to autonomous mobile robotics using Lego Mindstorms NXT

    Science.gov (United States)

    Akın, H. Levent; Meriçli, Çetin; Meriçli, Tekin

    2013-12-01

    Teaching the fundamentals of robotics to computer science undergraduates requires designing a well-balanced curriculum that is complemented with hands-on applications on a platform that allows rapid construction of complex robots, and implementation of sophisticated algorithms. This paper describes such an elective introductory course where the Lego Mindstorms NXT kits are used as the robot platform. The aims, scope and contents of the course are presented, and the design of the laboratory sessions as well as the term projects, which address several core problems of robotics and artificial intelligence simultaneously, are explained in detail.

  4. History and Educational Potential of LEGO Mindstorms NXT

    Directory of Open Access Journals (Sweden)

    Memet ÜÇGÜL

    2013-01-01

    Full Text Available Abstract: Educational usage of the robotics has accelerated recently because of educational potential of robotics has been recognized by educators and popularity of international robotics tournaments. Many university and schools prepare technology and robotics related summer schools for children. LEGO Mindstorms NXT is the most popular and commonly used robotics set for educational purposes. This robot sets rooted to Seymour Papert’s LOGO studies which have much influence Instructional Technology in 1960’s. This study aims to present a literature review on educational potential of LEGO Mindstorms NXT robotics sets. Robotics mainly used in education for supporting the STEM (Science, Technology, Engineering and Mathematics education. Most of the related studies resulted with positive effects of the robotics activities in STEM education. Robotics also used in education to increase some skills of the children such as discovery learning, critical thinking and social skills.Özet - LEGO Mindstorms NXT’lerin Tarihi ve Eğitsel Potansiyeli: Robotların eğitsel amaçlarla kullanımı giderek artmaktadır. Eğitimcilerin robotların eğitsel potansiyelinin farkına varmaları ve uluslararası robot turnuvalarının popülerlik kazanmasının robotların eğitsel kullanımına katkısı büyüktür. Birçok üniversite ve okul, teknoloji ve robotlar konulu yaz kampları düzenlemektedirler. LEGO Mindstorms NXT en popüler ve en çok kullanılan eğitsel robot setleridir. Bu robot setlerinin geçmişi, Seymour Papert’in LOGO çalışmalarına dayanmaktadır. Bu çalışmaların 1960’larda eğitim teknolojisine büyük etkileri olmuştur. Bu tarama çalışmasının amacı son zamanlarda eğitimcilerin ilgisini çeken, robotların eğitsel amaçlarla kullanımına yönelik çalışmaları inceleyerek, LEGO Mindstorms NXT robot setlerinin  eğitim amaçlı kullanım potansiyellerinin belirlenmesidir. Robotlar eğitimde en çok FTMM (Fen, Teknoloji

  5. Comparison of the LEGO Mindstorms NXT and EV3 Robotics Education Platforms

    Science.gov (United States)

    Sherrard, Ann; Rhodes, Amy

    2014-01-01

    The release of the latest LEGO Mindstorms EV3 robotics platform in September 2013 has provided a dilemma for many youth robotics leaders. There is a need to understand the differences in the Mindstorms NXT and EV3 in order to make future robotics purchases. In this article the differences are identified regarding software, hardware, sensors, the…

  6. A LEGO Mindstorms NXT Approach for Teaching at Data Acquisition, Control Systems Engineering and Real-Time Systems Undergraduate Courses

    Science.gov (United States)

    Cruz-Martin, A.; Fernandez-Madrigal, J. A.; Galindo, C.; Gonzalez-Jimenez, J.; Stockmans-Daou, C.; Blanco-Claraco, J. L.

    2012-01-01

    LEGO Mindstorms NXT robots are being increasingly used in undergraduate courses, mostly in robotics-related subjects. But other engineering topics, like the ones found in data acquisition, control and real-time subjects, also have difficult concepts that can be well understood only with good lab exercises. Such exercises require physical…

  7. LEGO Mindstorms NXT for elderly and visually impaired people in need: A platform.

    Science.gov (United States)

    Al-Halhouli, Ala'aldeen; Qitouqa, Hala; Malkosh, Nancy; Shubbak, Alaa; Al-Gharabli, Samer; Hamad, Eyad

    2016-07-27

    This paper presents the employment of LEGO Mindstorms NXT robotics as core component of low cost multidisciplinary platform for assisting elderly and visually impaired people. LEGO Mindstorms system offers a plug-and-play programmable robotics toolkit, incorporating construction guides, microcontrollers and sensors, all connected via a comprehensive programming language. It facilitates, without special training and at low cost, the use of such device for interpersonal communication and for handling multiple tasks required for elderly and visually impaired people in-need. The research project provides a model for larger-scale implementation, tackling the issues of creating additional functions in order to assist people in-need. The new functions were built and programmed using MATLAB through a user friendly Graphical User Interface (GUI). Power consumption problem, besides the integration of WiFi connection has been resolved, incorporating GPS application on smart phones enhanced the guiding and tracking functions. We believe that developing and expanding the system to encompass a range of applications beyond the initial design schematics to ease conducting a limited number of pre-described protocols. However, the beneficiaries for the proposed research would be limited to elderly people who require assistance within their household as assistive-robot to facilitate a low-cost solution for a highly demanding health circumstance.

  8. A Test Platform for Planned Field Operations Using LEGO Mindstorms NXT

    Directory of Open Access Journals (Sweden)

    Gareth Edwards

    2013-11-01

    Full Text Available Testing agricultural operations and management practices associated with different machinery, systems and planning approaches can be both costly and time-consuming. Computer simulations of such systems are used for development and testing; however, to gain the experience of real-world performance, an intermediate step between simulation and full-scale testing should be included. In this paper, a potential common framework using the LEGO Mindstorms NXT micro-tractor platform is described in terms of its hardware and software components. The performance of the platform is demonstrated and tested in terms of its capability of supporting decision making on infield operation planning. The proposed system represents the basic measures for developing a complete test platform for field operations, where route plans, mission plans, multiple-machinery cooperation strategies and machinery coordination can be executed and tested in the laboratory.

  9. A Lego Mindstorms NXT based test bench for multiagent exploratory systems and distributed network partitioning

    Science.gov (United States)

    Patil, Riya Raghuvir

    Networks of communicating agents require distributed algorithms for a variety of tasks in the field of network analysis and control. For applications such as swarms of autonomous vehicles, ad hoc and wireless sensor networks, and such military and civilian applications as exploring and patrolling a robust autonomous system that uses a distributed algorithm for selfpartitioning can be significantly helpful. A single team of autonomous vehicles in a field may need to self-dissemble into multiple teams, conducive to completing multiple control tasks. Moreover, because communicating agents are subject to changes, namely, addition or failure of an agent or link, a distributed or decentralized algorithm is favorable over having a central agent. A framework to help with the study of self-partitioning of such multi agent systems that have most basic mobility model not only saves our time in conception but also gives us a cost effective prototype without negotiating the physical realization of the proposed idea. In this thesis I present my work on the implementation of a flexible and distributed stochastic partitioning algorithm on the LegoRTM Mindstorms' NXT on a graphical programming platform using National Instruments' LabVIEW(TM) forming a team of communicating agents via NXT-Bee radio module. We single out mobility, communication and self-partition as the core elements of the work. The goal is to randomly explore a precinct for reference sites. Agents who have discovered the reference sites announce their target acquisition to form a network formed based upon the distance of each agent with the other wherein the self-partitioning begins to find an optimal partition. Further, to illustrate the work, an experimental test-bench of five Lego NXT robots is presented.

  10. Instant LEGO Mindstorm EV3

    CERN Document Server

    Garber, Gary

    2013-01-01

    Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. A concise guide full of step-by-step recipes to teach you how to build and program an advanced robot.""Instant LEGO Mindstorm EV3"" is for both the adult tinkerer who has never touched LEGO before and the experienced LEGO engineer who has evolved from Mindstorm NXT to EV3. If you are interested in entering or advising students in robot competitions such as the FIRST LEGO League, the Wold Robot Olympiad, or RoboGames, then this book is a must for you. Even if you haven't purchased yo

  11. LEGO Mindstorms NXT: Juego como Herramienta de Aprendizaje de Programación

    Directory of Open Access Journals (Sweden)

    Leidy Diana Jiménez-Pinzón

    2014-06-01

    Full Text Available LEGO Mindstorms es un juego que se usa como herramienta para el aprendizaje de distintas áreas de conocimiento. Una persona puede aprender acerca de programación mediante distintos lenguajes y aplicaciones para compilar el código de la solución planteada y resolver una situación particular. Sin embargo, la enseñanza de programación es sólo un fundamento teórico y poco práctico. Por estas razones, se pretende enseñar a programar mediante un lenguaje sencillo y una plataforma que permita visualizar el código gráficamente y validarlo específicamente con las instrucciones programadas sobre un robot.

  12. On the Development of Creativity and Cooperation Skills in Indigenous Elementary School Students During a LEGO Mindstorms NXT Course

    Directory of Open Access Journals (Sweden)

    Jenyi Chao

    2013-06-01

    Full Text Available The objective of the nine-year integrated curriculum in Taiwan is to cultivate the ten basic competencies of students. Nations around the world have also accentuated the importance of key competencies in citizens, and it is hoped that through education, civic literacy can be enhanced. Among the basic competencies, many nations value the abilities to use technology, to be creative, and cooperative. This study investigated the development of two abilities, creativity and cooperation, in indigenous students while they learned basic mechanical concepts in a LEGO Mindstorms NXT course, which comprised nine units, during the 2010-2011 school year. Indigenous Atayal culture and teaching strategies involving collaborative problem solving were integrated into the course. The participants were 24 third graders from an elementary school serving the Atayal Tribes of Nan-ao, Ilan County. Data was collected through pretests, posttests, and classroom observations. The findings of this study are as follows. (1 The scores of the pretests and posttests indicate that the basic mechanical concepts of the students improved significantly. (2 The results of the figural Torrance Tests of Creative Thinking showed that the students improved significantly in fluency, originality, elaboration, openness, and creative potential. (3 In learning, cooperating, and the division of labor, the students were able to perform their respective duties; in discussion, problem-solving, and presentation, they required some guidance from the teacher; in reflection, assessment, and summary, the students displayed high levels of interest and creative performance.

  13. APLIKASI JARINGAN KOMUNIKASI ROBOT MULTIHOP TERDISTRIBUSI PADA LINGKUNGAN STATIS TERBATAS: IMPLEMENTASI, SIMULASI DAN ANALISIS PADA KASUS ROBOT LEGO MINDSTORM NXT

    Directory of Open Access Journals (Sweden)

    Wisnu Jatmiko

    2012-05-01

    Full Text Available Paper ini akan membahas tahap awal (prototipe pengembangan jaringan komunikasi-robot multihop terdistribusi, yaitu suatu aplikasi yang diharapkan dapat dimanfaatkan pada lingkungan yang minim infrastruktur dan fasilitas komunikasi. Pada bagian awal paper disebutkan kondisi yang dapat menerapkan aplikasi jaringan komunikasi multihop ini, yaitu pada daerah bencana alam yang mengalami kerusakan sarana komunikasi, pada daerah terpencil karena faktor alam yang sulit untuk diadakan fasilitas komunikasi, ataupun daerah berbahaya untuk didatangi manusia ataupun kawasan konflik dan peperangan. Salah satu karakteristik yang diharapkan dari aplikasi ini adalah proses penyebaran informasi secara cepat dan mudah, bahkan walaupun tidak tersedia infrastruktur memadai sebelumnya. Selain itu, sistem ini bersifat terdistribusi sehingga diharapkan dapat memberikan beberapa keuntungan, baik saat diimplementasikan maupun kinerja di lapangan nantinya. Paper ini kemudian membahas pengembangan algoritma penyelesaian masalah, yang dilanjutkan dengan verifikasi dan analisis pada level simulasi perangkat lunak. Selanjutkan, algoritma ini diterapkan pada level simulasi perangkat keras dengan menggunakan modul robot Lego Mindstorm NXT. Untuk penyederhanaan masalah, pada tahap ini lingkungan yang digunakan masih bersifat statis dan terbatas sebagai salah satu asumsi.

  14. PROCESAMIENTO DE IMÁGENES PARA LA PLANEACIÓN DE RUTAS PARA ROBOTS MÓVILES BASADOS EN LEGO MINDSTORMS NXT

    Directory of Open Access Journals (Sweden)

    Jesús Alberto Torres Velásquez

    2014-11-01

    Full Text Available El presente artículo contiene el procedimiento para implementar diferentes técnicas de procesamiento de  imágenes y principalmente el algoritmo de esqueletización con el objetivo de planificar rutas libres de obstáculos para robots móviles; mediante una fotografía tomada sobre un área determinada con los obstáculos y el robot (construido con el kit de robótica LEGO MINDSTORMS NXT. Se realiza el debido procesamiento a dicha imagen, para luego, de forma remota enviar una serie de órdenes vía Bluetooth desde un computador usando MATLAB; ordenes generadas por el algoritmo aplicado sobre la imagen ya procesada, con el fin de obtener el desplazamiento de la plataforma móvil a un punto de llegada determinado por el usuario. 

  15. Using LEGO NXT Mobile Robots with LabVIEW for Undergraduate Courses on Mechatronics

    Science.gov (United States)

    Gomez-de-Gabriel, J. M.; Mandow, A.; Fernandez-Lozano, J.; Garcia-Cerezo, A.

    2011-01-01

    The paper proposes lab work and student competitions based on the LEGO NXT Mindstorms kits and standard LabVIEW. The goal of this combination is to stimulate design and experimentation with real hardware and representative software in courses where mobile robotics is adopted as a motivating platform to introduce mechatronics competencies. Basic…

  16. Introduction for Freshmen to Embedded Systems Using LEGO Mindstorms

    Science.gov (United States)

    Kim, Seung Han; Jeon, Jae Wook

    2009-01-01

    The purpose of the course presented here is to introduce freshmen to embedded systems using LEGO Mindstorms, under an ANSI-C programming environment. The students build their own LEGO robots, make programs for them using ANSI-C, and operate them. By creating these LEGO robots, the students become more motivated, learning the basic concepts of…

  17. A LEGO Mindstorms Brewster angle microscope

    Science.gov (United States)

    Fernsler, Jonathan; Nguyen, Vincent; Wallum, Alison; Benz, Nicholas; Hamlin, Matthew; Pilgram, Jessica; Vanderpoel, Hunter; Lau, Ryan

    2017-09-01

    A Brewster Angle Microscope (BAM) built from a LEGO Mindstorms kit, additional LEGO bricks, and several standard optics components, is described. The BAM was built as part of an undergraduate senior project and was designed, calibrated, and used to image phospholipid, cholesterol, soap, and oil films on the surface of water. A BAM uses p-polarized laser light reflected off a surface at the Brewster angle, which ideally yields zero reflectivity. When a film of different refractive index is added to the surface a small amount of light is reflected, which can be imaged in a microscope camera. Films of only one molecule (approximately 1 nm) thick, a monolayer, can be observed easily in the BAM. The BAM was used in a junior-level Physical Chemistry class to observe phase transitions of a monolayer and the collapse of a monolayer deposited on the water surface in a Langmuir trough. Using a photometric calculation, students observed a change in thickness of a monolayer during a phase transition of 7 Å, which was accurate to within 1 Å of the value determined by more advanced methods. As supplementary material, we provide a detailed manual on how to build the BAM, software to control the BAM and camera, and image processing software.

  18. LEGO mindstorm masterpieces building and programming advanced robots

    CERN Document Server

    2003-01-01

    In LEGO Mindstorm Masterpieces, some of the world's leading LEGO Mindstorms inventors share their knowledge and development secrets. The unique style of this book will allow it to cover an incredibly broad range of topics in unparalleled detail. Chapters within the book will include detailed discussions of the mechanics that drive the robot - and also provide step-by-step construction diagrams for each of the robots. This is perfect book for LEGO hobbyists looking to take their skills to the next level whether they build world-class competitive robots or just like to mess around for the fun of it.For experienced users of LEGO Mindstorms, LEGO Mindstorms Masterpiece is composed of three fundamental sections:·Part One: A review of the advanced robot building concepts and theories.·Part Two: Step-by-step building instructions for a series of complex models. The companion programming code is included, along with in-depth explanations of concepts needed for the specific models. Robots include Line Followers, Bip...

  19. Generation NXT: Building Young Engineers with LEGOs

    Science.gov (United States)

    Karp, T.; Gale, R.; Lowe, L. A.; Medina, V.; Beutlich, E.

    2010-01-01

    This paper describes key success factors for the implementation and development of a LEGO robotics engineering outreach program for elementary school students in West Texas. The outreach program not only aims at getting young students excited about engineering but at the same time aims at improving retention rates among electrical and computer…

  20. The parametric resonance—from LEGO Mindstorms to cold atoms

    Science.gov (United States)

    Kawalec, Tomasz; Sierant, Aleksandra

    2017-07-01

    We show an experimental setup based on a popular LEGO Mindstorms set, allowing us to both observe and investigate the parametric resonance phenomenon. The presented method is simple but covers a variety of student activities like embedded software development, conducting measurements, data collection and analysis. It may be used during science shows, as part of student projects and to illustrate the parametric resonance in mechanics or even quantum physics, during lectures or classes. The parametrically driven LEGO pendulum gains energy in a spectacular way, increasing its amplitude from 10° to about 100° within a few tens of seconds. We provide also a short description of a wireless absolute orientation sensor that may be used in quantitative analysis of driven or free pendulum movement.

  1. The parametric resonance—from LEGO Mindstorms to cold atoms

    International Nuclear Information System (INIS)

    Kawalec, Tomasz; Sierant, Aleksandra

    2017-01-01

    We show an experimental setup based on a popular LEGO Mindstorms set, allowing us to both observe and investigate the parametric resonance phenomenon. The presented method is simple but covers a variety of student activities like embedded software development, conducting measurements, data collection and analysis. It may be used during science shows, as part of student projects and to illustrate the parametric resonance in mechanics or even quantum physics, during lectures or classes. The parametrically driven LEGO pendulum gains energy in a spectacular way, increasing its amplitude from 10° to about 100° within a few tens of seconds. We provide also a short description of a wireless absolute orientation sensor that may be used in quantitative analysis of driven or free pendulum movement. (paper)

  2. Introduction to Autonomous Mobile Robotics Using "Lego Mindstorms" NXT

    Science.gov (United States)

    Akin, H. Levent; Meriçli, Çetin; Meriçli, Tekin

    2013-01-01

    Teaching the fundamentals of robotics to computer science undergraduates requires designing a well-balanced curriculum that is complemented with hands-on applications on a platform that allows rapid construction of complex robots, and implementation of sophisticated algorithms. This paper describes such an elective introductory course where the…

  3. PENGARUH PENGGUNAAN BUKU AJAR BERBASIS STEM BERBANTUAN LEGO MINDSTORM EV3 TERHADAP PEMAHAMAN KONSEP MOMENTUM SISWA

    Directory of Open Access Journals (Sweden)

    Ratih Mega Ayu Afifah

    2017-10-01

    Full Text Available The purpose of this research is to figure out the effect of using STEM (Science, Technology, Engineering, and Mathematic based textbook that assisted by using LEGO mindstorm EV3 toward the students’s understanding of momentum subject. The design of this research that is pretest-postest group design. The Samples are composed of 12 students from experimental class and 12 students from control class. The results of this research show that the conceptual understanding of experimental class that using STEM-based textbook that assisted by using LEGO mindstorm EV3 is beter than the understanding of control class which using the conventional textbook in the ordinary class. The implication of this research is applying this textbook to measure the other cognitive dimention such as reasoning. Abstrak Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan buku ajar berbasis STEM (Science, Technology, Engineering, dan Mathematics berbantuan LEGO mindstorm EV3 dalam pembelajaran fisika terhadap pemahaman konsep siswa pada materi momentum. Penelitian ini menggunakan desain eksperimen pretest postest group design. Sampel penelitian terdiri dari 12  siswa kelompok eksperimen dan 12 siswa kelompok kontrol. Berdasarkan hasil analisis menunjukkan bahwa pemahaman konsep kelompok siswa yang menggunakan buku ajar berbasis STEM berbantuan LEGO mindstorm EV3 secara signifikan lebih meningkat dibandingkan dengan kelompok yang menggunakan buku yang biasa digunakan di sekolah. Hasil penelitian menunjukkan bahwa penggunaan buku ajar berbasis STEM berbantuan robot LEGO mindstorm EV3 dapat meningkatkan pemahaman konsep siswa pada materi momentum. Implikasi pada penelitian ini adalah menerapkan buku ajar tersebut untuk mengukur dimensi kognitif lainnya seperti penalaran.

  4. Programación de LEGO MindStorms bajo GNU/Linux

    OpenAIRE

    Matellán Olivera, Vicente; Heras Quirós, Pedro de las; Centeno González, José; González Barahona, Jesús

    2002-01-01

    GNU/Linux sobre un ordenador personal es la opción libre preferida por muchos desarrolladores de aplicaciones, pero también es una plataforma de desarrollo muy popular para otros sistemas, incluida la programación de robots, en particular es muy adecuada para jugar con los LEGO Mindstorms. En este artículo presentaremos las dos opciones más extendidas a la hora de programar estos juguetes: NQC y LegOS. NQC es una versión reducida de C que permite el desarrollo rápido de programas ...

  5. Mechatronics Education: From Paper Design to Product Prototype Using LEGO NXT Parts

    Science.gov (United States)

    Lofaro, Daniel M.; Le, Tony Truong Giang; Oh, Paul

    The industrial design cycle starts with design then simulation, prototyping, and testing. When the tests do not match the design requirements the design process is started over again. It is important for students to experience this process before they leave their academic institution. The high cost of the prototype phase, due to CNC/Rapid Prototype machine costs, makes hands on study of this process expensive for students and the academic institutions. This document shows that the commercially available LEGO NXT Robot kit is a viable low cost surrogate to the expensive industrial CNC/Rapid Prototype portion of the industrial design cycle.

  6. First Steps into Practical Engineering for Freshman Students Using MATLAB and LEGO Mindstorms Robots

    Directory of Open Access Journals (Sweden)

    A. Behrens

    2008-01-01

    Full Text Available Besides lectures on basic theoretical topics, contemporary teaching and learning concepts for first semester students give more and more consideration to practically motivated courses. In this context, a new first-year introductory course in practical engineering has been established in the first semester curriculum of Electrical Engineering at RWTH Aachen University, Germany. Based on a threefold learning concept, programming skills in MATLAB are taught to 309 students within a full-time block course laboratory. The students are encouraged to transfer known mathematical basics to program algorithms and real-world applications performed by 100 LEGO Mindstorms robots. A new MATLAB toolbox and twofold project tasks have been developed for this purpose by a small team of supervisors. The students are supervised by over 60 tutors at 23 institutes, and are encouraged to create their own robotics applications. We describe how the laboratory motivates the students to act and think like engineers and to solve real-world issues with limited resources. The evaluation results show that the proposed practical course concept successfully boosts students’ motivation, advances their programming skills, and encourages the peer learning process. 

  7. The Effect of Scratch- and Lego Mindstorms Ev3-Based Programming Activities on Academic Achievement, Problem-Solving Skills and Logical-Mathematical Thinking Skills of Students

    Science.gov (United States)

    Korkmaz, Özgen

    2016-01-01

    The aim of this study was to investigate the effect of the Scratch and Lego Mindstorms Ev3 programming activities on academic achievement with respect to computer programming, and on the problem-solving and logical-mathematical thinking skills of students. This study was a semi-experimental, pretest-posttest study with two experimental groups and…

  8. Designing and implementing nervous system simulations on LEGO robots.

    Science.gov (United States)

    Blustein, Daniel; Rosenthal, Nikolai; Ayers, Joseph

    2013-05-25

    We present a method to use the commercially available LEGO Mindstorms NXT robotics platform to test systems level neuroscience hypotheses. The first step of the method is to develop a nervous system simulation of specific reflexive behaviors of an appropriate model organism; here we use the American Lobster. Exteroceptive reflexes mediated by decussating (crossing) neural connections can explain an animal's taxis towards or away from a stimulus as described by Braitenberg and are particularly well suited for investigation using the NXT platform.(1) The nervous system simulation is programmed using LabVIEW software on the LEGO Mindstorms platform. Once the nervous system is tuned properly, behavioral experiments are run on the robot and on the animal under identical environmental conditions. By controlling the sensory milieu experienced by the specimens, differences in behavioral outputs can be observed. These differences may point to specific deficiencies in the nervous system model and serve to inform the iteration of the model for the particular behavior under study. This method allows for the experimental manipulation of electronic nervous systems and serves as a way to explore neuroscience hypotheses specifically regarding the neurophysiological basis of simple innate reflexive behaviors. The LEGO Mindstorms NXT kit provides an affordable and efficient platform on which to test preliminary biomimetic robot control schemes. The approach is also well suited for the high school classroom to serve as the foundation for a hands-on inquiry-based biorobotics curriculum.

  9. IMPLEMENTASI ALGORITMA BREADTH FIRST SEARCH DAN OBSTACLE DETECTION DALAM PENELUSURAN LABIRIN DINAMIS MENGGUNAKAN ROBOT LEGO

    Directory of Open Access Journals (Sweden)

    Adi Wibowo

    2012-05-01

    Full Text Available Dewasa ini perkembangan teknologi di dunia robot edukasi berkembang pesat. Robot-robot edukasi ini sering digunakan dalam riset penelitian karena kemudahan-kemudahan yang diberikannya dari segi perangkat keras. Salah satu contoh robot edukasi adalah robot LEGO Mindstorms NXT. Pada penelitian ini robot LEGO dibangun dalam bentuk robot line follower. Robot ini mampu menelusuri dan mencari jalan keluar dari labirin dinamis. Dalam menelusuri dan mencari jalan keluar, robot LEGO menggunakan algoritma Breadth First Search dan Manhattan Distance dalam memutuskan jalan mana yang harus diambil. Ketika menemui objek halangan, robot LEGO akan mengenali dan menghindari objek halangan tersebut dengan algoritma Obstacle Detection yang dimilikinya. Hasil implementasi membuktikan bahwa algoritma penelusuran labirin dinamis ini dapat diimplementasikan pada robot LEGO meskipun terdapat banyak keterbatasan dalam robot LEGO. Nowadays, the development of technology in educational robots is rapidly evolving. Educational robots are often used in research studies because they provide convenience in terms of hardware. One example is the educational robot LEGO Mindstorms NXT robot. In this research, LEGO robots built in the form of line follower robot. Robot is able to browse and find a way out of the dynamic labyrinth. In track and find a way out, LEGO robot uses an algorithm Breadth First Search and Manhattan Distance in deciding which path to take. When encountering an obstacle object, LEGO robot will recognize and avoid that obstacle objects with Obstacle Detection algorithm. The results prove that the implementation of a dynamic maze search algorithm can be implemented on a LEGO robot even though there are many limitations in LEGO robot.

  10. A line follower robot implementation using Lego's Mindstorms Kit and Q-Learning

    Directory of Open Access Journals (Sweden)

    Hector-Gabriel Acosta-Mesa

    2012-03-01

    Full Text Available Un problema común al trabajar con robots móviles es que la fase de programación puede ser un proceso largo, costoso y difícil para los programadores. Los Algoritmos de Aprendizaje por Refuerzo ofrecen uno de los marcos de trabajo más generales en el ámbito de aprendizaje de máquina. Este trabajo presenta un enfoque usando el algoritmo de Q-Learning en un robot Lego para que aprenda "por sí mismo" a seguir una línea negra dibujada en una superficie blanca. El entorno de programación utilizado en este trabajo es Matlab.A common problem working with mobile robots is that programming phase could be a long, expensive and heavy process for programmers. The reinforcement learning algorithms offer one of the most general frameworks in learning subjects. This work presents an approach using the Q-Learning algorithm on a Lego robot in order for it to learn by itself how to follow a blackline drawn down on a white surface, using Matlab [5] as programming environment.

  11. FIRST LEGO League Kickoff

    Science.gov (United States)

    2007-01-01

    Randall Hicks (right), Jacobs Technology's Education Services manager at NASA John C. Stennis Space Center, answers questions about the playing field for FIRST (For Inspiration and Recognition of Science and Technology) LEGO League's 2007 Challenge, `Power Puzzle.' More than 140 teachers, mentors, parents and students from 15 schools attended the Sept. 15 FLL season kickoff at StenniSphere, the visitor center at SSC. The teams from southern and central Mississippi and Mobile, Ala., who came to SSC heard rules for and asked questions about `Power Puzzle,' and saw robot demonstrations by Gulfport and Picayune high schools' past FIRST Robotics competitions. Using LEGO Mindstorms NXT kits, FLL teams of children ages 9-14 will spend the next three months building and programming robots to perform 'Power Puzzle's' challenge tasks, then pit them in competitions. They also will submit a research project about how energy choices impact the environment and the economy. The season will culminate at the Mississippi Championship Tournament on Dec. 8 at the Mississippi Gulf Coast Community College. FLL, considered the `little league' of the FIRST Robotics Competition, partners FIRST and the LEGO Group. Competitions aim to inspire and celebrate science and technology using real-world context and hands-on experimentation. NASA recognizes FIRST activities as an excellent hands-on method to increase student knowledge of science, engineering, technology and mathematics. Schools represented in this year's kickoff were: Madison Avenue Upper Elementary, the Mississippi Band of Choctaw Indians' Conehatta Elementary, Hattiesburg's Lillie Burney Elementary, Pearl Upper Elementary, Long Beach Middle, Oktibehha Elementary, d'Iberville Middle, Saucier's West Wortham Middle, Picayune's Nicholson Elementary and Roseland Park Baptist Church Academy, Bay St. Louis' St. Stanislaus College and Mobile's Davidson High, as well as two home-school groups from the Jackson area.

  12. LEGO

    DEFF Research Database (Denmark)

    Schleicher, Marianne

    2012-01-01

    Kulturevolutionær refleksion over LEGOs udfordringer, når virksomheden gennem leg opfordrer til variation i religiøse, ikke-vestlige kulturer.......Kulturevolutionær refleksion over LEGOs udfordringer, når virksomheden gennem leg opfordrer til variation i religiøse, ikke-vestlige kulturer....

  13. The Perfect Mindstorm: 4-H Robotics in Afterschool Settings

    Directory of Open Access Journals (Sweden)

    Dave Francis

    2009-12-01

    Full Text Available As the 4-H Science, Engineering and Technology (SET Mission Mandate unfolds, robotics provides an opportunity to involve youth in SET activities. Utah 4-H utilized Lego Mindstorms Robotics kits to teach youth about robotics. Evaluations demonstrated that robots increase youth’s interest in science, engineering and technology.

  14. Reviews Books: IGCSE physics textbooks from CIE and Edexcel Book: Three Steps to the Universe CD: ASE/SEP CD for Heads of Science and Principal Teachers Book: Exposed! Ouija, Firewalking and other Gibberish Book: Superconductivity: A Very Short Introduction Software: ROBOLAB 2.9 and NXT-G 2.0 Book: The Language of Physics: A Foundation for University Study Apparatus: Mini Magdeburgs Web Watch

    Science.gov (United States)

    2010-01-01

    WE RECOMMEND IGCSE Physics (for the CIE course) A clear, approachable textbook for the new course ASE/SEP CD for Heads of Science and Principal Teachers An excellent resource to help those new to authority Superconductivity: A Very Short Introduction Well written summary of a complex subject ROBOLAB 2.9 Versatile datalogging software for Lego MINDSTORMS The Language of Physics: A Foundation for University Study Book closes the gap between A-level and degree-level physics Mini Magdeburgs Fun apparatus that can be used for teaching and play WORTH A LOOK Edexcel IGCSE Physics An up-to-date but uninspiring new textbook Three Steps to the Universe A book crammed full of space science Exposed! Ouija, Firewalking and other Gibberish Science explains why not to believe in pseudo-science HANDLE WITH CARE NXT-G 2.0 Very limited datalogging software for Lego MINDSTORMS WEB WATCH Virtual experiments have their place but cannot replace real practical work in the classroom

  15. LEGO Mindstorms EV3 the Mayan adventure

    CERN Document Server

    Bell, Mark

    2017-01-01

    Through the use of a fictional story, this book details how to build and design robots. Although it offers numerous robotic designs and offers detailed information on how to build and program each robot, readers are encouraged to come up with their own.

  16. Teleoperación de un robot mindstorm mediante técnicas de visión artificial

    OpenAIRE

    Méndez Rodríguez, Eduardo

    2011-01-01

    Las tres partes tratadas son la teleoperacióon (principalmente con comunicaciones mediante bluetooth), la visión arti cial para elementos móviles en tiempo real y proyectos realizados con el Mindstorm NXT. Hay que destacar que en los dos primeros campos hay innumerables aplicaciones debido a que ambos campos siguen hoy en día bajo invetigación en busca de lograr mejoras tecnológicas, también los proyectos con el Mindstorm están creciendo exponencialmente, mayormente debido a...

  17. Enriching K-12 Science and Mathematics Education Using LEGOs

    Science.gov (United States)

    Williams, Keeshan; Igel, Irina; Poveda, Ronald; Kapila, Vikram; Iskander, Magued

    2012-01-01

    This paper presents a series of illustrative LEGO Mindstorms-based science and math activities, developed under an NSF GK-12 Fellows project, for elementary, middle, and high school grades. The activities, developed by engineering and science graduate Fellows in partnership with K-12 teachers, are grade appropriate, address pertinent learning…

  18. Liquid-handling Lego robots and experiments for STEM education and research

    OpenAIRE

    Gerber, Lukas C.; Calasanz-Kaiser, Agnes; Hyman, Luke; Voitiuk, Kateryna; Patil, Uday; Riedel-Kruse, Ingmar H.

    2017-01-01

    Liquid-handling robots have many applications for biotechnology and the life sciences, with increasing impact on everyday life. While playful robotics such as Lego Mindstorms significantly support education initiatives in mechatronics and programming, equivalent connections to the life sciences do not currently exist. To close this gap, we developed Lego-based pipetting robots that reliably handle liquid volumes from 1 ml down to the sub-μl range and that operate on standard laboratory plasti...

  19. Lego Group

    DEFF Research Database (Denmark)

    Møller Larsen, Marcus; Pedersen, Torben; Slepniov, Dmitrij

    2010-01-01

    The last years’ rather adventurous journey from 2004 to 2009 had taught the fifth-largest toy-maker in the world - the LEGO Group - the importance of managing the global supply chain effectively. In order to survive the largest internal financial crisis in its roughly 70 years of existence......, the management had, among many initiatives, decided to offshore and outsource a major chunk of its production to Flextronics. In this pursuit of rapid cost-cutting sourcing advantages, the LEGO Group planned to license out as much as 80 per cent of its production besides closing down major parts...

  20. Verification of DRAGON: the NXT tracking module

    International Nuclear Information System (INIS)

    Zkiek, A.; Marleau, G.

    2007-01-01

    The version of DRAGON-IST that has been verified for the calculation of the incremental cross sections associated with CANDU reactivity devices is version 3.04Bb that was released in 2001. Since then, various improvements were implemented in the code including the NXT: module that can track assemblies of clusters in 2-D and 3-D geometries. Here we will discuss the verification plan for the NXT: module of DRAGON, illustrate the verification procedure we selected and present our verification results. (author)

  1. Mindstorms robots and the application of cognitive load theory in introductory programming

    Science.gov (United States)

    Mason, Raina; Cooper, Graham

    2013-12-01

    This paper reports on a series of introductory programming workshops, initially targeting female high school students, which utilised Lego Mindstorms robots. Cognitive load theory (CLT) was applied to the instructional design of the workshops, and a controlled experiment was also conducted investigating aspects of the interface. Results indicated that a truncated interface led to better learning by novice programmers as measured by test performance by participants, as well as enhanced shifts in self-efficacy and lowered perception of difficulty. There was also a transfer effect to another programming environment (Alice). It is argued that the results indicate that for novice programmers, the mere presence on-screen of additional (redundant) entities acts as a form of tacit distraction, thus impeding learning. The utility of CLT to analyse, design and deliver aspects of computer programming environments and instructional materials is discussed.

  2. USO DE LOS CONCEPTOS BÁSICOS DE NXT-G 2.0 EN LA CONSTRUCCIÓN Y DESARROLLO DE UN ROBOT SEGUIDOR DE LÍNEA

    Directory of Open Access Journals (Sweden)

    Jonathan Alexander Soto-Montoya

    2012-12-01

    Full Text Available En este artículo se muestra la estrategia de programación de un seguidor de línea, a partir de la aplicación de fórmulas matemáticas básicas. Las formulas son traducidas en un lenguaje gráfico elemental, que hace posible la experimentación de la estrategia, en un robot LEGO MINDSTORM.

  3. 2011 FIRST LEGO League

    Science.gov (United States)

    2010-01-01

    Matthew Myles (left) and Agrippa Kellum from Armstrong Middle School in Starkville, watch as their LEGO robot competes during a Dec. 4 tournament. Elementary and middle school students from across Mississippi gathered in Hattiesburg to participate in the Mississippi Championship FIRST (For Inspiration and Recognition of Science and Technology) LEGO League Tournament. Stennis supports FIRST LEGO League each year by providing mentors, training and tournament volunteers.

  4. Mathematics and "Lego" Robots

    Science.gov (United States)

    Hansen, Janus Halkier; Traeholt, Rune

    2007-01-01

    For the last four years, Soenderholm School, near the town of Aalborg, Northjutland, Denmark, has had an optional subject in the seventh grade called First "Lego" League (FLL). FLL is an international contest which aims to advance pupils' scientific interest. The task is for participants to build and program a "Lego" robot able…

  5. Motivating programming students by Problem Based Learning and LEGO robots

    DEFF Research Database (Denmark)

    Lykke, Marianne; Coto Chotto, Mayela; Mora, Sonia

    2014-01-01

    . For this reason the school is focusing on different teaching methods to help their students master these skills. This paper introduces an experimental, controlled comparison study of three learning designs, involving a problem based learning (PBL) approach in connection with the use of LEGO Mindstorms to improve...... students programming skills and motivation for learning in an introductory programming course. The paper reports the results related with one of the components of the study - the experiential qualities of the three learning designs. The data were collected through a questionnaire survey with 229 students...... from three groups exposed to different learning designs and through six qualitative walk-alongs collecting data from these groups by informal interviews and observations. Findings from the three studies were discussed in three focus group interviews with 10 students from the three experimental groups....

  6. Modular Lego-Electronics

    KAUST Repository

    Shaikh, Sohail F.; Ghoneim, Mohamed T.; Bahabry, Rabab R.; Khan, Sherjeel M.; Hussain, Muhammad Mustafa

    2017-01-01

    . Here, a generic manufacturable method of converting state-of-the-art complementary metal oxide semiconductor-based ICs into modular Lego-electronics is shown with unique geometry that is physically identifiable to ease manufacturing and enhance

  7. LEGO Diorama Images

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — We often create dioramas from LEGO bricks for use with our presentations, blogs, and social media posts. We find it's much more fun and effective to reenact...

  8. Developing novel extensions to support prototyping for interactive social robots

    NARCIS (Netherlands)

    Bhömer, ten M.; Bartneck, C.; Hu, J.; Ahn, R.M.C.; Tuyls, K.P.; Delbressine, F.L.M.; Feijs, L.M.G.

    2009-01-01

    Lego Mindstorms NXT is a platform highly suitable for prototyping in the field of interactive social robotics. During a technology masterclass at Eindhoven University of Technology students from the department of Industrial Design have developed five novel extensions (sensors and actuators) for the

  9. Ordered Effects of Technology Education Units on Higher-Order Critical Thinking Skills of Middle School Students

    Science.gov (United States)

    Mojica, Kern D.

    2010-01-01

    In this quasi-experimental quantitative study, 105 eighth grade students at a suburban middle school in New York State participated in a seven month-long project involving the ordered effects of the technology education units of Lego[R] Mindstorms(TM) NXT Robotics System, Digital Storytelling with Microsoft Windows Movie Maker, and the Marble Maze…

  10. MATLAB Meets LEGO Mindstorms--A Freshman Introduction Course into Practical Engineering

    Science.gov (United States)

    Behrens, A.; Atorf, L.; Schwann, R.; Neumann, B.; Schnitzler, R.; Balle, J.; Herold, T.; Telle, A.; Noll, T. G.; Hameyer, K.; Aach, T.

    2010-01-01

    In today's teaching and learning approaches for first-semester students, practical courses more and more often complement traditional theoretical lectures. This practical element allows an early insight into the real world of engineering, augments student motivation, and enables students to acquire soft skills early. This paper describes a new…

  11. Localization of Mobile Robots Using an Extended Kalman Filter in a LEGO NXT

    Science.gov (United States)

    Pinto, M.; Moreira, A. P.; Matos, A.

    2012-01-01

    The inspiration for this paper comes from a successful experiment conducted with students in the "Mobile Robots" course in the fifth year of the integrated Master's program in the Department of Electrical and Computer Engineering, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal. One of the topics in this Mobile Robots…

  12. Learning with LEGO

    Science.gov (United States)

    Durrani, Matin

    2017-12-01

    I have lost count of the number of wheezes to get people hooked on particle physics. There have been straightforward scientific accounts, personal tales of discovery, books filled with cartoons, essays and even historical vignettes. In Particle Physics Brick by Brick, science communicator Ben Still has decided to use LEGO bricks to coax readers into learning more about the subatomic world.

  13. Lego Car Race

    Science.gov (United States)

    Preston, Christine

    2017-01-01

    Familiar toys can be used to scaffold young children's learning about basic physics as well as guide scientific inquiry. Teachers looking for resources to engage young children and develop science inquiry skills need look no further than the toy box. In this two-part activity, children first construct a Lego® car and use it to explore the effects…

  14. Liquid-handling Lego robots and experiments for STEM education and research.

    Directory of Open Access Journals (Sweden)

    Lukas C Gerber

    2017-03-01

    Full Text Available Liquid-handling robots have many applications for biotechnology and the life sciences, with increasing impact on everyday life. While playful robotics such as Lego Mindstorms significantly support education initiatives in mechatronics and programming, equivalent connections to the life sciences do not currently exist. To close this gap, we developed Lego-based pipetting robots that reliably handle liquid volumes from 1 ml down to the sub-μl range and that operate on standard laboratory plasticware, such as cuvettes and multiwell plates. These robots can support a range of science and chemistry experiments for education and even research. Using standard, low-cost household consumables, programming pipetting routines, and modifying robot designs, we enabled a rich activity space. We successfully tested these activities in afterschool settings with elementary, middle, and high school students. The simplest robot can be directly built from the widely used Lego Education EV3 core set alone, and this publication includes building and experiment instructions to set the stage for dissemination and further development in education and research.

  15. Liquid-handling Lego robots and experiments for STEM education and research.

    Science.gov (United States)

    Gerber, Lukas C; Calasanz-Kaiser, Agnes; Hyman, Luke; Voitiuk, Kateryna; Patil, Uday; Riedel-Kruse, Ingmar H

    2017-03-01

    Liquid-handling robots have many applications for biotechnology and the life sciences, with increasing impact on everyday life. While playful robotics such as Lego Mindstorms significantly support education initiatives in mechatronics and programming, equivalent connections to the life sciences do not currently exist. To close this gap, we developed Lego-based pipetting robots that reliably handle liquid volumes from 1 ml down to the sub-μl range and that operate on standard laboratory plasticware, such as cuvettes and multiwell plates. These robots can support a range of science and chemistry experiments for education and even research. Using standard, low-cost household consumables, programming pipetting routines, and modifying robot designs, we enabled a rich activity space. We successfully tested these activities in afterschool settings with elementary, middle, and high school students. The simplest robot can be directly built from the widely used Lego Education EV3 core set alone, and this publication includes building and experiment instructions to set the stage for dissemination and further development in education and research.

  16. A Probabilistic Analysis of the Nxt Forging Algorithm

    Directory of Open Access Journals (Sweden)

    Serguei Popov

    2016-12-01

    Full Text Available We discuss the forging algorithm of Nxt from a probabilistic point of view, and obtain explicit formulas and estimates for several important quantities, such as the probability that an account generates a block, the length of the longest sequence of consecutive blocks generated by one account, and the probability that one concurrent blockchain wins over an- other one. Also, we discuss some attack vectors related to splitting an account into many smaller ones.

  17. Using Python to Program LEGO MINDSTORMS® Robots: The PyNXC Project

    Directory of Open Access Journals (Sweden)

    2010-04-01

    Full Text Available

    LEGO MINDSTORMS® NXT (Lego Group, 2006 is a perfect platform for introducing programming concepts, and is generally targeted toward children from age 8-14.  The language which ships with the MINDSTORMS®, called NXTg, is a graphical language based on LabVIEW (Jeff Kodosky, 2010.  Although there is much value in graphical languages, such as LabVIEW, a text-based alternative can be targeted at an older audiences and serve as part of a more general introduction to modern computing.  Other languages, such as NXC (Not Exactly C (Hansen, 2010 and PbLua (Hempel, 2010, fit this description.  Here we introduce PyNXC, a subset of the Python language which can be used to program the NXT MINDSTORMS®.  We present results using PyNXC, comparisons with other languages, and some challenges and future possible extensions.


     

  18. MiniLEGO

    DEFF Research Database (Denmark)

    Frederiksen, Tore Kasper; Jakobsen, Thomas Pelle; Nielsen, Jesper Buus

    2013-01-01

    One of the main tools to construct secure two-party computation protocols are Yao garbled circuits. Using the cut-and-choose technique, one can get reasonably efficient Yao-based protocols with security against malicious adversaries. At TCC 2009, Nielsen and Orlandi [28] suggested to apply cut......-and-choose at the gate level, while previously cut-and-choose was applied on the circuit as a whole. This idea allows for a speed up with practical significance (in the order of the logarithm of the size of the circuit) and has become known as the “LEGO” construction. Unfortunately the construction in [28] is based...... on a specific number-theoretic assumption and requires public-key operations per gate of the circuit. The main technical contribution of this work is a new XOR-homomorphic commitment scheme based on oblivious transfer, that we use to cope with the problem of connecting the gates in the LEGO construction. Our...

  19. Modular Lego-Electronics

    KAUST Repository

    Shaikh, Sohail F.

    2017-10-24

    Electronic system components have thousands of individual field effect transistors (FETs) interconnected executing dedicated functions. Assembly yield of >80% will guarantee system failure since a single interconnect failure will result in undesired performance. Hence, a paradigm shift is needed in the self-assembly or integration of state-of-the-art integrated circuits (ICs) for a physically compliant system. Traditionally, most ICs share same geometry with only variations in dimensions and packaging. Here, a generic manufacturable method of converting state-of-the-art complementary metal oxide semiconductor-based ICs into modular Lego-electronics is shown with unique geometry that is physically identifiable to ease manufacturing and enhance throughput. Various geometries at the backside of the silicon die and on the destination site having the same geometry with relaxed dimension (up to 50 µm extra) allow targeted site binding like DNA assembly. Different geometries, angles, and heights for different modules provide a unique identity to each of the ICs. A two-level geometric combination presented here helps in maintaining the uniqueness of individual module to assemble at exact matching site like a perfect lock-and-key model. The assembled ICs offer uncompromised electrical performance, higher yield, and fabrication ease. In future, this method can further be expanded for fluidic assisted self-assembly.

  20. Lego Group: An Outsourcing Journey

    DEFF Research Database (Denmark)

    Larsen, Marcus Møller; Pedersen, Torben; Slepniov, Dmitrij

    2010-01-01

    The last years’ rather adventurous journey from 2004 to 2009 had taught the fifth-largest toy-maker in the world - the LEGO Group - the importance of managing the global supply chain effectively. In order to survive the largest internal financial crisis in its roughly 70 years of existence......, the management had, among many initiatives, decided to offshore and outsource a major chunk of its production to Flextronics. In this pursuit of rapid cost-cutting sourcing advantages, the LEGO Group planned to license out as much as 80 per cent of its production besides closing down major parts...

  1. On the entropy of LEGO

    DEFF Research Database (Denmark)

    Durhuus, Bergfinnur; Eilers, Søren

    We propose the further study of the rate of growth of the number of contiguous buildings which may be made from n LEGO blocks of the same size and color. Specializing to blocks of dimension 2x4 we give upper and lower bounds, and speculate on the true value....

  2. Listening and Legos[TM

    Science.gov (United States)

    Morris, Pamela

    2012-01-01

    This simple exercise, performed in teams, gives students practice in listening to instructions, particularly when there are restrictions for the communication. The teams compete in a limited amount of time to build a Lego[TM] structure based on the instructions of one team member. Which team listens the best and is most successful?

  3. Lego Group: An Outsourcing Journey

    DEFF Research Database (Denmark)

    Larsen, Marcus Møller; Pedersen, Torben; Slepniov, Dmitrij

    2010-01-01

    , the management had, among many initiatives, decided to offshore and outsource a major chunk of its production to Flextronics. In this pursuit of rapid cost-cutting sourcing advantages, the LEGO Group planned to license out as much as 80 per cent of its production besides closing down major parts...

  4. LEGO-inspired drug design

    DEFF Research Database (Denmark)

    Thanh Tung, Truong; Dao, Trong Tuan; Grifell Junyent, Marta

    2018-01-01

    The fungal plasma membrane H+-ATPase (Pma1p) is a potential target for the discovery of new antifungal agents. Surprisingly, no structure-activity relationship studies for small molecules targeting Pma1p have been reported. Herein, we disclose a LEGO-inspired fragment assembly strategy for design...

  5. Have LEGO Products Become More Violent?

    Directory of Open Access Journals (Sweden)

    Christoph Bartneck

    Full Text Available Although television, computer games and the Internet play an important role in the lives of children they still also play with physical toys, such as dolls, cars and LEGO bricks. The LEGO company has become the world's largest toy manufacturer. Our study investigates if the LEGO company's products have become more violent over time. First, we analyzed the frequency of weapon bricks in LEGO sets. Their use has significantly increased. Second, we empirically investigated the perceived violence in the LEGO product catalogs from the years 1978-2014. Our results show that the violence of the depicted products has increased significantly over time. The LEGO Company's products are not as innocent as they used to be.

  6. Have LEGO Products Become More Violent?

    Science.gov (United States)

    Min Ser, Qi; Moltchanova, Elena; Smithies, James; Harrington, Erin

    2016-01-01

    Although television, computer games and the Internet play an important role in the lives of children they still also play with physical toys, such as dolls, cars and LEGO bricks. The LEGO company has become the world’s largest toy manufacturer. Our study investigates if the LEGO company’s products have become more violent over time. First, we analyzed the frequency of weapon bricks in LEGO sets. Their use has significantly increased. Second, we empirically investigated the perceived violence in the LEGO product catalogs from the years 1978–2014. Our results show that the violence of the depicted products has increased significantly over time. The LEGO Company’s products are not as innocent as they used to be. PMID:27203424

  7. Have LEGO Products Become More Violent?

    Science.gov (United States)

    Bartneck, Christoph; Min Ser, Qi; Moltchanova, Elena; Smithies, James; Harrington, Erin

    2016-01-01

    Although television, computer games and the Internet play an important role in the lives of children they still also play with physical toys, such as dolls, cars and LEGO bricks. The LEGO company has become the world's largest toy manufacturer. Our study investigates if the LEGO company's products have become more violent over time. First, we analyzed the frequency of weapon bricks in LEGO sets. Their use has significantly increased. Second, we empirically investigated the perceived violence in the LEGO product catalogs from the years 1978-2014. Our results show that the violence of the depicted products has increased significantly over time. The LEGO Company's products are not as innocent as they used to be.

  8. Designing Effective Spaces, Tasks and Metrics for Communication in Second Life within the Context of Programming LEGO NXT Mindstorms™ Robots

    Science.gov (United States)

    Vallance, Michael; Martin, Stewart; Wiz, Charles; van Schaik, Paul

    2010-01-01

    Science education is concerned with the meaningful pursuit of comprehension, knowledge and understanding of scientific concepts and processes. In Vygotskian social constructivist learning, personal interpretation, decision-making and community cooperation fosters long-term understanding and transference of learned concepts. The construction of…

  9. Lego Serious Play in Law

    Directory of Open Access Journals (Sweden)

    Frederico de Andrade Gabrich

    2016-12-01

    Full Text Available The legal education is not fully following the significant changes in society in the XXI century, and this determines significant lack of student motivation. The teaching methodologies used in legal courses continued to follow the teacher's knowledge and books, grounded in instructionism. It takes the development and application of new teaching methodologies that favor the change of the dominant mental model, systems thinking, innovation and real problems solution that motivate students for learning. The Lego Serious

  10. A Lego version of ATLAS

    CERN Multimedia

    Laëtitia Pedroso

    2010-01-01

    There's nothing very unusual about a small child making simple objects out of Lego. But wouldn't you be surprised to learn that one six-year old has just made a life-like model of the ATLAS detector?   Bastian with his Lego ATLAS detector. © Photo provided by Kai Nicklas, Bastian's father. It all began a month ago when the boy's father was watching a video about the construction of the ATLAS detector on the Internet. He hadn't noticed that his son was watching it over his shoulder. The small boy was fascinated by what he was seeing on the computer screen and his first reaction was to exclaim: "Wow! That's a terrific machine! I think the people who built it must be really clever." The detector must have really fired his imagination because, after asking his father a few questions, he decided to make a Lego model of it. Look at the photo and you will see how closely the model he produced resembles the actual ATLAS detector. Is the little boy in question, Bastia...

  11. LEGO Robotics: An Authentic Problem Solving Tool?

    Science.gov (United States)

    Castledine, Alanah-Rei; Chalmers, Chris

    2011-01-01

    With the current curriculum focus on correlating classroom problem solving lessons to real-world contexts, are LEGO robotics an effective problem solving tool? This present study was designed to investigate this question and to ascertain what problem solving strategies primary students engaged with when working with LEGO robotics and whether the…

  12. Lego Robotics: STEM Sport of the Mind

    Science.gov (United States)

    Gura, Mark

    2012-01-01

    Lego robotics is engaging, hands-on, and encompasses every one of the NETS for Students. It also inspires a love of science, technology, engineering, and mathematics (STEM) and provides the experience students need to use digital age skills in the real world. In this article, the author discusses how schools get involved with Lego Robotics and…

  13. The LEGO bric system under reconstruction

    DEFF Research Database (Denmark)

    Jørgensen, Ulrik

    1998-01-01

    The new LEGO brick concept including 'intelligent' bricks and microcomputers is analysed in the line of path dependency and incriptions of patterns of use.......The new LEGO brick concept including 'intelligent' bricks and microcomputers is analysed in the line of path dependency and incriptions of patterns of use....

  14. On the asymptotic enumeration of LEGO structures

    DEFF Research Database (Denmark)

    Abrahamsen, Mikkel; Eilers, Søren

    2011-01-01

    We investigate experimentally the growth regimes of the number of LEGO structures that can be constructed contiguously from n blocks of equal shape and color.......We investigate experimentally the growth regimes of the number of LEGO structures that can be constructed contiguously from n blocks of equal shape and color....

  15. Sistema sensor para navegación en vehículos autónomos

    OpenAIRE

    Viñolo Arcos, Xavier

    2010-01-01

    Este proyecto tiene como objetivo crear un sistema de navegación de bajo coste con la ayuda de sensores inerciales para un vehículo autónomo. Para ello se ha utilizado como plataforma Lego Mindstorms NXT. El entorno software usado para controlar y programar ha sido Labview. El proyecto se estructura siguiendo el siguiente índice. En primer lugar se introduce el mundo de la robótica describiendo la estructura general de vehículos. A continuación se concreta la descripción para el kit de Lego q...

  16. Build your own tiny Lego LHC

    CERN Multimedia

    Abha Eli Phoboo

    2015-01-01

    A PhD student working on the ATLAS experiment has created a replica of the Large Hadron Collider using Lego building blocks. Nathan Readioff, from the University of Liverpool (see here), submitted his design to Lego Ideas (see here) this week and is now awaiting the 10,000 votes needed for it to qualify for the Lego Review, which decides if projects become new Lego products. You can help this project, vote online now!   A computer simulation of the miniature Lego LHC, complete with four detectors connected with blue dipole magnets. His Lego design is a stylised model of the LHC, showcasing the four main detectors ALICE, ATLAS, CMS and LHCb at the micro scale. Each detector is small enough to fit in the palm of your hand, yet the details of the internal systems are intricate, revealed by cutaway walls. Every major detector component is represented by a Lego piece. The models are not strictly to scale with one another, but the same size base is used for each one to maximise the detail that can...

  17. FIRST LEGO League announces State Championship winners

    Science.gov (United States)

    2007-01-01

    PEAK Home School Network Team 1832 'Techno Warriors' of Brandon sport the Champions Award they won during the Dec. 8 FIRST (For Inspiration and Recognition of Science and Technology) LEGO League 2007 Mississippi Championship Tournament.

  18. 3D Digital Legos for Teaching Security Protocols

    Science.gov (United States)

    Yu, Li; Harrison, L.; Lu, Aidong; Li, Zhiwei; Wang, Weichao

    2011-01-01

    We have designed and developed a 3D digital Lego system as an education tool for teaching security protocols effectively in Information Assurance courses (Lego is a trademark of the LEGO Group. Here, we use it only to represent the pieces of a construction set.). Our approach applies the pedagogical methods learned from toy construction sets by…

  19. Lego: When video games bridge between play and cinema

    Directory of Open Access Journals (Sweden)

    Mattia Thibault

    2015-09-01

    Full Text Available This paper proposes an exploration of the Lego Transmedia World. The starting point is a definition of a Lego aesthetics based on four characteristics: modularity, translatability, intertextuality and a tripartite nature of Lego minifigures. A brief analysis of the most popular types of Lego products – toys, games, video games and movies – will delineate a continuum that goes from different degrees of playfulness to mere readership: continuum in which videogames hold a special position. The final aim of this article is to underline, thanks to the Lego case study, the complexity and variety of the knotty intertextual nets that characterize transmedia realities.

  20. LEGO products have become more complex.

    Directory of Open Access Journals (Sweden)

    Christoph Bartneck

    Full Text Available The LEGO Group has become the largest toy company in the world and they can look back to a proud history of more than 50 years of producing bricks and other toys. Starting with a simple set of basic bricks their range of toys appeared to have increased in complexity over the years. We processed the inventories of most sets from 1955-2015 and our analysis showed that LEGO sets have become bigger, more colorful and more specialized. The vocabulary of bricks has increased significantly resulting in sets sharing fewer bricks. The increased complexity of LEGO sets and bricks enables skilled builders to design ever more amazing models but it may also overwhelm less skilled or younger builders.

  1. LEGO products have become more complex.

    Science.gov (United States)

    Bartneck, Christoph; Moltchanova, Elena

    2018-01-01

    The LEGO Group has become the largest toy company in the world and they can look back to a proud history of more than 50 years of producing bricks and other toys. Starting with a simple set of basic bricks their range of toys appeared to have increased in complexity over the years. We processed the inventories of most sets from 1955-2015 and our analysis showed that LEGO sets have become bigger, more colorful and more specialized. The vocabulary of bricks has increased significantly resulting in sets sharing fewer bricks. The increased complexity of LEGO sets and bricks enables skilled builders to design ever more amazing models but it may also overwhelm less skilled or younger builders.

  2. Block Party: Legos in the Library

    Science.gov (United States)

    Klebanoff, Abbe

    2009-01-01

    Toys don't belong in the library. That's probably what some people still think. But the author's library outside Philadelphia was having such a hard time attracting boys who had outgrown storytime that he and his colleagues decided to try something new. So his school started a Lego club. Since their June 2008 kickoff, they've been amazed by how…

  3. Transforming LEGO for the Digital Economy

    DEFF Research Database (Denmark)

    Andersen, Peter; Ross, Jeanne

    2016-01-01

    processes. The goal of the new transformation is “to become a digital company.” Although the company already looked digital in 2016, management felt it had not become digital—in its products and processes. This case describes the LEGO Group’s journey to become a successful digital company....

  4. LEGO for Two-Party Secure Computation

    DEFF Research Database (Denmark)

    Nielsen, Jesper Buus; Orlandi, Claudio

    2009-01-01

    This paper continues the recent line of work of making Yao’s garbled circuit approach to two-party computation secure against an active adversary. We propose a new cut-and-choose based approach called LEGO (Large Efficient Garbled-circuit Optimization): It is specifically aimed at large circuits...

  5. Wave propagation in complex structures with LEGO

    NARCIS (Netherlands)

    Lancellotti, V.; Hon, de B.P.; Tijhuis, A.G.

    2012-01-01

    We present the extension of the linear embedding via Green's operators (LEGO) scheme to problems that involve elementary sources localized inside complex structures made of different dielectric media with inclusions. We show how this new feature allows solving problems of wave propagation within,

  6. A Day at FIRST Lego League

    Science.gov (United States)

    McIntyre, Nancy

    2012-01-01

    This article features an after-school FIRST Lego League (FLL) program at Chaminade Middle School in Chatsworth, California, USA. The after-school FLL program feeds into the high school FIRST Robotics Competition (FRC) program wherein aspiring young engineers come to the high school team with several years of FLL experience. Through the FLL…

  7. LEGO, Legoland og Billund Lalandia nr. 2

    DEFF Research Database (Denmark)

    Leth Pasgaard, Jens Chr.

    2007-01-01

    kant af Ribe Amt. Ud over LEGO koncernens produktionsudflytning påvirkes Ny Billund Kommune endvidere af lukningen af Danish Crowns slagteri i Grindsted, hvor 700 arbejdspladser for nyligt blev nedlagt. Det er således forståeligt at kommunen byder nye investorer velkommen. Kommunen har potentialet til...

  8. Patients' perspectives about why they have their contraceptive Implanon NXT device removed early.

    Science.gov (United States)

    Flore, Meike; Chen, Xiaoshuang Lilly; Bonney, Andrew; Mullan, Judy; Dijkmans-Hadley, Bridget; Hodgkins, Adam; Evans, Gina; Frew, Haley; Lloyd, Gail

    2016-10-01

    Women with long-acting, reversible contraceptive devices inserted may choose to remove them prior to their planned expiry dates. The objective of this study was to explore Australian women's experiences with the etonogestrel subdermal contraceptive implant (Implanon NXT) and why they had it removed early. Semi-structured interviews were conducted with 18 women between June 2013 and January 2014. Transcriptions of the audio-taped interviews were analysed using a constant comparative analysis framework. Two core themes of participants' responses that were identified in this study were influences on choice of contraception, which included convenience and information sources; and influences on removal of contraception, which included side effects and their negative impacts on relationships and financial costs. This study highlights that women's experiences with side effects contribute to the early removal of long-acting contraceptive devices such as Implanon NXT. This study emphasises the importance of general practitioners (GPs) in providing comprehensive information about the benefits and potential side effects associated with using these implants.

  9. Scaling limits for the Lego discrepancy

    International Nuclear Information System (INIS)

    Hameren, Andre van; Kleiss, Ronald

    1999-01-01

    For the Lego discrepancy with M bins, which is equivalent with a χ 2 -statistic with M bins, we present a procedure to calculate the moment generating function of the probability distribution perturbatively if M and N, the number of uniformly and randomly distributed data points, become large. Furthermore, we present a phase diagram for various limits of the probability distribution in terms of the standardized variable if M and N become infinite

  10. LEGO-Method--New Strategy for Chemistry Calculation

    Science.gov (United States)

    Molnar, Jozsef; Molnar-Hamvas, Livia

    2011-01-01

    The presented strategy of chemistry calculation is based on mole-concept, but it uses only one fundamental relationship of the amounts of substance as a basic panel. The name of LEGO-method comes from the famous toy of LEGO[R] because solving equations by grouping formulas is similar to that. The relations of mole and the molar amounts, as small…

  11. A truly Lego®-like modular microfluidics platform

    Science.gov (United States)

    Vittayarukskul, Kevin; Lee, Abraham Phillip

    2017-03-01

    Ideally, a modular microfluidics platform should be simple to assemble and support 3D configurations for increased versatility. The modular building blocks should also be mass producible like electrical components. These are fundamental features of world-renowned Legos® and why Legos® inspire many existing modular microfluidics platforms. In this paper, a truly Lego®-like microfluidics platform is introduced, and its basic feasibility is demonstrated. Here, PDMS building blocks resembling 2  ×  2 Lego® bricks are cast from 3D-printed master molds. The blocks are pegged and stacked on a traditional Lego® plate to create simple, 3D microfluidic networks, such as a single basket weave. Characteristics of the platform, including reversible sealing and automatic alignment of channels, are also analyzed and discussed in detail.

  12. A truly Lego®-like modular microfluidics platform

    International Nuclear Information System (INIS)

    Vittayarukskul, Kevin; Lee, Abraham Phillip

    2017-01-01

    Ideally, a modular microfluidics platform should be simple to assemble and support 3D configurations for increased versatility. The modular building blocks should also be mass producible like electrical components. These are fundamental features of world-renowned Legos ® and why Legos ® inspire many existing modular microfluidics platforms. In this paper, a truly Lego ® -like microfluidics platform is introduced, and its basic feasibility is demonstrated. Here, PDMS building blocks resembling 2  ×  2 Lego ® bricks are cast from 3D-printed master molds. The blocks are pegged and stacked on a traditional Lego ® plate to create simple, 3D microfluidic networks, such as a single basket weave. Characteristics of the platform, including reversible sealing and automatic alignment of channels, are also analyzed and discussed in detail. (paper)

  13. Investování do setů stavebnic LEGO

    OpenAIRE

    Voborský, Michal

    2017-01-01

    This Bachelor thesis indetifies LEGO sets as an opportunity for investment and determines sets as alternative assets. The thesis is divided into five chapters. First defines alternative assets and investing in them. Second describes the history of the LEGO Company and their products. Third one describes ways of investing in LEGO sets and defines markets, where LEGO is traded. Fourth part describes factors which influence the value of LEGO sets. Last, fifth, part analyses return on investment ...

  14. Bright bricks, dark play: On the impossibility of studying LEGO

    OpenAIRE

    Giddings, S.

    2014-01-01

    It is generally recognized that the pleasures of LEGO do not end once the instructions in a particular set have been followed and the model depicted on the box is accurately realized. Generations of children have —just as the manufacturers intended— pulled apart the pristine model and begun again, making new vehicles, environments and creatures. The new set joins the larger box of LEGO full of older bricks, and is mixed and hybridized. This hybridization has become particularly evident in rec...

  15. LEGO Koncern 2000 - 2003 - en årsagsanalyse

    OpenAIRE

    Rosenberg, Morten; Özbudak, Devrim; Møller, Mads; Herneth, Daniel

    2006-01-01

    Denne rapport omhandler LEGO Koncernens økonomiske krise i årene 2000-2003. Vores videnskabsteoretiske er Kritisk realisme og vi bruger i projektet; en regnskabsanalyse, komparativ rapport og en PEST-analyse Denne rapport omhandler LEGO Koncernens økonomiske krise i årene 2000-2003. Vores videnskabsteoretiske er Kritisk realisme og vi bruger i projektet; en regnskabsanalyse, komparativ rapport og en PEST-analyse

  16. Konstruksi Genre Dalam Film “the Lego Movie”

    OpenAIRE

    Natalia, Vivi

    2014-01-01

    “The Lego Movie” adalah film animasi dari produsen film Warner Bros yang menceritakan kehidupan dan petualangan Emmet, seorang konstruksi bangunan yang salah terdeteksi sebagai orang spesial yang mampu menyelesaikan masalah dunia. Film ini adalah sebuah film yang membawa konvensi-konvensi genre yang berbeda dibanding film-film animasi lainnya. Peneliti melakukan analisis genre terhadap film “The Lego Movie” menggunakan 6 elemen menurut Jane Stoke, yaitu setting, lokasi, peristiwa naratif, plo...

  17. Live LEGO House: a Mixed Reality Game for the Edutainment

    OpenAIRE

    Portalés Ricart, Cristina

    2007-01-01

    Gaming is a natural way of learning and multimedia technologies bring new possibilities in the field of edutainment. Live LEGO House in an interactive space to explore coexistence and multicultural factors through gaming based on the Mixed Reality(MXR)technology. The system consists basically on a physical/real house built with the LEGO blocks, which is enriched with different non-physical/virtual multimedia files, including sounds, videos and 3D animations with multicultural content. Childre...

  18. Anmeldelse af Eigil Lego Andersen: Dirigent og generalforsamling

    DEFF Research Database (Denmark)

    Werlauff, Erik

    2011-01-01

    Artiklen er en anmeldelse af advokat, adj. professor, dr. jur. Eigil Lego Andersens juridiske monografi om dirigenten og generalforsamlingen, herunder med lancering af en række nye afstemningsmetoder til brug for generalforsamlingen i (større) aktieselskaber.......Artiklen er en anmeldelse af advokat, adj. professor, dr. jur. Eigil Lego Andersens juridiske monografi om dirigenten og generalforsamlingen, herunder med lancering af en række nye afstemningsmetoder til brug for generalforsamlingen i (større) aktieselskaber....

  19. Orthognathic model surgery with LEGO key-spacer.

    Science.gov (United States)

    Tsang, Alfred Chee-Ching; Lee, Alfred Siu Hong; Li, Wai Keung

    2013-12-01

    A new technique of model surgery using LEGO plates as key-spacers is described. This technique requires less time to set up compared with the conventional plaster model method. It also retains the preoperative setup with the same set of models. Movement of the segments can be measured and examined in detail with LEGO key-spacers. Copyright © 2013 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  20. Business Process Innovation: The LEGO Case

    DEFF Research Database (Denmark)

    Møller, Charles; Hansen, P.K.

    2006-01-01

    Most organizations today are required not only to establish effective business processes but they are required to accommodate for changing business conditions at an increasing rate. Many business processes extend beyond the boundary of the enterprise into the supply chain and the information...... process innovation (BPI) in future organizations. This paper explores the applicability of one particular methodology for Business Process Innovation to deal with the challenge that the LEGO organization is facing with the alignment of their product development process and their supply chain. The paper...... infrastructure therefore is critical. Today nearly every business relies on their Enterprise System (ES) for process integration and the future generations of Enterprise Systems will increasingly be driven by business process models. Consequently process modelling and improvement will become vital for business...

  1. Using LEGO for learning fractions, supporting or distracting?

    Science.gov (United States)

    Rejeki, Sri; Setyaningsih, Nining; Toyib, Muhamad

    2017-05-01

    The role of games used for learning mathematics is still in debate. However, many research revealed that it gave positive effects on both students' motivation and performance in mathematics. Therefore, this study aims at investigating the effects of using LEGO-as one of games which students are familiar with, for learning mathematics, on both students' conceptual knowledge of fractions and students' attitude in learning mathematics. A set of learning activities consisting three meetings of fractions learning was designed for this study. The activities were mainly about solving word-context problems using LEGO as the model. Thirty students of seven grade with high-ability in mathematics and thirty two students with low-ability in mathematics were involved in this study. The data were collected through students' written works, video registration and field notes during the teaching and learning activities. The results indicate that in general the use of LEGO in learning activities support the conceptual understanding on fractions for both students with high-ability and low-ability in mathematics. Moreover, for students with low-ability in mathematics, it promotes the computational skill of fractions operation. The evidences also suggest that bringing LEGO into classroom activities improve students' motivation and engagement. However, in some cases, students were more focus on playing than learning. Therefore, teachers play important roles on providing clear pedagogical instructions about the way to use LEGO properly.

  2. Building a Lego wall: Sequential action selection.

    Science.gov (United States)

    Arnold, Amy; Wing, Alan M; Rotshtein, Pia

    2017-05-01

    The present study draws together two distinct lines of enquiry into the selection and control of sequential action: motor sequence production and action selection in everyday tasks. Participants were asked to build 2 different Lego walls. The walls were designed to have hierarchical structures with shared and dissociated colors and spatial components. Participants built 1 wall at a time, under low and high load cognitive states. Selection times for correctly completed trials were measured using 3-dimensional motion tracking. The paradigm enabled precise measurement of the timing of actions, while using real objects to create an end product. The experiment demonstrated that action selection was slowed at decision boundary points, relative to boundaries where no between-wall decision was required. Decision points also affected selection time prior to the actual selection window. Dual-task conditions increased selection errors. Errors mostly occurred at boundaries between chunks and especially when these required decisions. The data support hierarchical control of sequenced behavior. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  3. A LEGO paradigm for virtual accelerator concept

    International Nuclear Information System (INIS)

    Andrianov, S.; Ivanov, A.; Podzyvalov, E.

    2012-01-01

    The paper considers basic features of a Virtual Accelerator concept based on LEGO paradigm. This concept involves three types of components: different mathematical models for accelerator design problems, integrated beam simulation packages (i. e. COSY, MAD, OptiM and others), and a special class of virtual feedback instruments similar to real control systems (EPICS). All of these components should inter-operate for more complete analysis of control systems and increased fault tolerance. The Virtual Accelerator is an information and computing environment which provides a framework for analysis based on these components that can be combined in different ways. Corresponding distributed computing services establish interaction between mathematical models and low level control system. The general idea of the software implementation is based on the Service-Oriented Architecture (SOA) that allows using cloud computing technology and enables remote access to the information and computing resources. The Virtual Accelerator allows a designer to combine powerful instruments for modeling beam dynamics in a friendly way including both self-developed and well-known packages. In the scope of this concept the following is also proposed: the control system identification, analysis and result verification, visualization as well as virtual feedback for beam line operation. The architecture of the Virtual Accelerator system itself and results of beam dynamics studies are presented. (authors)

  4. The Lego Story: Remolding Education Policy and Practice

    Science.gov (United States)

    Pirrie, Anne

    2017-01-01

    The aim of this article is to develop a more nuanced understanding of the complex nature of learning as it relates to both the educational and social aims of education as manifested in contemporary European education policy. The article explores tensions in education policy and practice by exploring the evolution of the global brand Lego. The…

  5. Does Lego Training Stimulate Pupils' Ability to Solve Logical Problems?

    Science.gov (United States)

    Lindh, Jorgen; Holgersson, Thomas

    2007-01-01

    The purpose of this study is to investigate the effect of a one-year regular robotic toys (lego) training on school pupils' performance. The underlying pedagogical perspective is the "constructionist theory," where the main idea is that knowledge is constructed in the mind of the pupil by active learning. The investigation has been made…

  6. The Serious Use of Play and Metaphor: Legos and Labyrinths

    Science.gov (United States)

    James, Alison; Brookfield, Stephen

    2013-01-01

    In this paper the authors wish to examine kinesthetic forms of learning involving the body and the physical realm. The authors look at two particular techniques; using Legos to build metaphorical models and living the physical experience of metaphors in the shape of labyrinth-walking and its attendant activities. The authors begin by discussing…

  7. An Exploration of the Nanoworld with LEGO Bricks

    Science.gov (United States)

    Campbell, Dean J.; Miller, Josiah D.; Bannon, Stephen J.; Obermaier, Lauren M.

    2011-01-01

    LEGO bricks can be used for a number of demonstrations of chemical structures and properties, especially at the nanoscale level. These bricks can also be used to model instrumentation that probes these structures and properties. Detailed resources about many of these demonstrations are located on the extensive Web site "Exploring the Nanoworld…

  8. LEGO: A Modular Approach to Accelerator Alignment Data Analysis

    Energy Technology Data Exchange (ETDEWEB)

    LeCocq, Catherine M

    2003-05-14

    The underlying unity of the numerous surveying computational methods is hidden by many practical differences in data acquisition. Traditional programming languages have added to the confusion by requiring programmers to describe the numeric data in very concrete and low-level structures (mostly arrays). In fact the algorithms behind all coordinate determination from surveying observations come down to basic methods of linear algebra. Lego uses the paradigm of object oriented programming (OOP) to more closely model the fundamental mathematical structures of all geodetic methods. Once the methods are in OOP form, the commonality across them becomes more obvious and a general architecture for a wide range of geodetic treatments becomes possible. This paper describes the fundamental concepts of this architecture and its advantages in terms of clarity (maintainability, testability and multi-author), portability and extensibility (observation types, resolution techniques and storage methods). The very first version of Lego was built in 1994 as a set of C routines to be used for the adjustment of theodolite data and tracker data. The routines were organized into six modules. Each module answered a specific task. The tasks had been identified as followed: general implementation, input, generic surveying formulas, statistical functions, matrix manipulation and specific resolution technique. This organization was the reason for the name Lego, but more seriously the purpose of this separation was to make Lego easily adaptable to any environment and easily expandable to new resolution techniques. At a second look, it was also a cry for being converted into a more modern language. Because C++ is primarily a superset of C, most C++ compilers have no problems compiling regular C code and may also handle a mixture of C and C++. This made the transformation of Lego very fast and painless. Up to now Lego is still using C functions for file access and dynamic memory allocation but is

  9. LEGO: A Modular Approach to Accelerator Alignment Data Analysis

    International Nuclear Information System (INIS)

    LeCocq, Catherine M

    2003-01-01

    The underlying unity of the numerous surveying computational methods is hidden by many practical differences in data acquisition. Traditional programming languages have added to the confusion by requiring programmers to describe the numeric data in very concrete and low-level structures (mostly arrays). In fact the algorithms behind all coordinate determination from surveying observations come down to basic methods of linear algebra. Lego uses the paradigm of object oriented programming (OOP) to more closely model the fundamental mathematical structures of all geodetic methods. Once the methods are in OOP form, the commonality across them becomes more obvious and a general architecture for a wide range of geodetic treatments becomes possible. This paper describes the fundamental concepts of this architecture and its advantages in terms of clarity (maintainability, testability and multi-author), portability and extensibility (observation types, resolution techniques and storage methods). The very first version of Lego was built in 1994 as a set of C routines to be used for the adjustment of theodolite data and tracker data. The routines were organized into six modules. Each module answered a specific task. The tasks had been identified as followed: general implementation, input, generic surveying formulas, statistical functions, matrix manipulation and specific resolution technique. This organization was the reason for the name Lego, but more seriously the purpose of this separation was to make Lego easily adaptable to any environment and easily expandable to new resolution techniques. At a second look, it was also a cry for being converted into a more modern language. Because C++ is primarily a superset of C, most C++ compilers have no problems compiling regular C code and may also handle a mixture of C and C++. This made the transformation of Lego very fast and painless. Up to now Lego is still using C functions for file access and dynamic memory allocation but is

  10. LEGO A Modular Approach to Accelerator Alignment Data Analysis

    CERN Document Server

    Lecocq, C M

    2003-01-01

    The underlying unity of the numerous surveying computational methods is hidden by many practical differences in data acquisition. Traditional programming languages have added to the confusion by requiring programmers to describe the numeric data in very concrete and low-level structures (mostly arrays). In fact the algorithms behind all coordinate determination from surveying observations come down to basic methods of linear algebra. Lego uses the paradigm of object oriented programming (OOP) to more closely model the fundamental mathematical structures of all geodetic methods. Once the methods are in OOP form, the commonality across them becomes more obvious and a general architecture for a wide range of geodetic treatments becomes possible. This paper describes the fundamental concepts of this architecture and its advantages in terms of clarity (maintainability, testability and portability and extensibility (observation types, resolution techniques and storage methods). The very first version of Lego was bu...

  11. Color dithering methods for LEGO-like 3D printing

    Science.gov (United States)

    Sun, Pei-Li; Sie, Yuping

    2015-01-01

    Color dithering methods for LEGO-like 3D printing are proposed in this study. The first method is work for opaque color brick building. It is a modification of classic error diffusion. Many color primaries can be chosen. However, RGBYKW is recommended as its image quality is good and the number of color primary is limited. For translucent color bricks, multi-layer color building can enhance the image quality significantly. A LUT-based method is proposed to speed the dithering proceeding and make the color distribution even smoother. Simulation results show the proposed multi-layer dithering method can really improve the image quality of LEGO-like 3D printing.

  12. Using LEGO Blocks for Technology-Mediated Task-Based English Language Learning

    Science.gov (United States)

    Gadomska, Agnieszka

    2015-01-01

    LEGO blocks have been played with by generations of children worldwide since the 1950s. It is undeniable that they boost creativity, eye-hand coordination, focus, planning, problem solving and many other skills. LEGO bricks have been also used by educators across the curricula as they are extremely motivating and engaging and, in effect, make…

  13. A 'LEGO' Hybrid Photon Detector - assembled from standard mass-produced vacuum components

    International Nuclear Information System (INIS)

    Ferenc, Daniel; Lorenz, Eckart; Mirzoyan, Razmik

    2000-01-01

    Motivated primarily by the MAGIC atmospheric Cherenkov telescope project, we have developed a 'LEGO' Hybrid Photon Detector (HPD) comprising excellent focusing properties and protection against positive ion feedback. LEGO-HPD is supposed to be assembled from standard high vacuum components, which insures simplicity in the assembly procedure and reliability of operation

  14. Lego Bricks and the Octet Rule: Molecular Models for Biochemical Pathways with Plastic, Interlocking Toy Bricks

    Science.gov (United States)

    Lin, Henry J.; Lehoang, Jennifer; Kwan, Isabel; Baghaee, Anita; Prasad, Priya; Ha-Chen, Stephanie J.; Moss, Tanesha; Woods, Jeremy D.

    2018-01-01

    The 8 studs on a 2 × 4 Lego brick conveniently represent the outer shell of electrons for carbon, nitrogen, and oxygen atoms. We used Lego bricks to model these atoms, which are then joined together to form molecules by following the Lewis octet rule. A variety of small biological molecules can be modeled in this way, such as most amino acids,…

  15. Low-cost diffuse optical tomography for the classroom

    Science.gov (United States)

    Minagawa, Taisuke; Zirak, Peyman; Weigel, Udo M.; Kristoffersen, Anna K.; Mateos, Nicolas; Valencia, Alejandra; Durduran, Turgut

    2012-10-01

    Diffuse optical tomography (DOT) is an emerging imaging modality with potential applications in oncology, neurology, and other clinical areas. It allows the non-invasive probing of the tissue function using relatively inexpensive and safe instrumentation. An educational laboratory setup of a DOT system could be used to demonstrate how photons propagate through tissues, basics of medical tomography, and the concepts of multiple scattering and absorption. Here, we report a DOT setup that could be introduced to the advanced undergraduate or early graduate curriculum using inexpensive and readily available tools. The basis of the system is the LEGO Mindstorms NXT platform which controls the light sources, the detectors (photo-diodes), a mechanical 2D scanning platform, and the data acquisition. A basic tomographic reconstruction is implemented in standard numerical software, and 3D images are reconstructed. The concept was tested and developed in an educational environment that involved a high-school student and a group of post-doctoral fellows.

  16. THE ARCHITECTURE OF THE REMOTE CONTROL SYSTEM OF ROBOTICS OBJECTS

    Directory of Open Access Journals (Sweden)

    S.V. Shavetov

    2014-03-01

    Full Text Available The paper deals with the architecture for the universal remote control system of robotics objects over the Internet global network. Control objects are assumed to be located at a considerable distance from a reference device or end-users. An overview of studies on the subject matter of remote control of technical objects is given. A structure chart of the architecture demonstrating the system usage in practice is suggested. Server software is considered that makes it possible to work with technical objects connected to the server as with a serial port and organize a stable tunnel connection between the controlled object and the end-user. The proposed architecture has been successfully tested on mobile robots Parallax Boe-Bot and Lego Mindstorms NXT. Experimental data about values of time delays are given demonstrating the effectiveness of the considered architecture.

  17. PEMBAGIAN TUGAS DALAM KOLONI ROBOT OTONOM BERGERAK PADA STUDI KASUS PEMBENTUKAN POLA FORMASI SECARA GRADUAL

    Directory of Open Access Journals (Sweden)

    Wisnu Jatmiko

    2012-05-01

    Full Text Available Pada penelitian ini dilakukan suatu eksperimen pembentukan formasi pola dengan menggunakan Robot LEGO Mindstorms NXT. Pembentukan pola ini dilakukan secara bertahap dimulai dari pembentukan formasi pola yang lebih sederhana menuju kepada formasi pola yang lebih kompleks. Dalam penelitian ini, diterapkan konsep pembedaan peranan dalam pembentukan formasi pola poligon. Konsep pembedaan peranan ini diterapkan dengan menggunakan persamaan periodik. Selain itu, persamaan pembedaan peranan dibuat dengan fitur terbebas dari kondisi awal dari nilai variabel pembeda. Pembentukan formasi pola pada penelitian ini dilakukan dalam 3 tahapan, yaitu tahap penerapan persamaan, tahap penerapan robot simulasi, dan tahap penerapan perangkat robot. Pembentukan formasi pola yang dilakukan pada penelitian ini ada tiga macam, yaitu pembentukan formasi pola segitiga, pembentukan formasi pola segiempat / jajaran genjang, dan pembentukan formasi pola segilima.

  18. DIME Students Show Off their Lego(TM) Challenge Creation

    Science.gov (United States)

    2002-01-01

    Two students show the Lego (TM) Challenge device they designed and built to operate in the portable drop tower demonstrator as part of the second Dropping in a Microgravity Environment (DIME) competition held April 23-25, 2002, at NASA's Glenn Research Center. Competitors included two teams from Sycamore High School, Cincinnati, OH, and one each from Bay High School, Bay Village, OH, and COSI Academy, Columbus, OH. DIME is part of NASA's education and outreach activities. Details are on line at http://microgravity.grc.nasa.gov/DIME_2002.html.

  19. Implementation of Reconfigurable Manufacturing Systems, the Case of The LEGO Group

    DEFF Research Database (Denmark)

    Wang, Ying; Bilberg, Arne; Hadar, Ronen

    of reconfigurable manufacturing systems (RMS). A literature review is made to describe the advantages and core characteristics of RMS. Based on the theory, a conceptual model is developed to analyze where RMS would be most suitable and have most benefits in The LEGO Group. Finally, the conclusion is drawn based...... on the analysis through the model. Keywords: Reconfigurable Manufacturing Systems, Conceptual Model of RMS, Production of The LEGO Group...

  20. Supramolecular Lego assembly towards three-dimensional multi-responsive hydrogels.

    Science.gov (United States)

    Ma, Chunxin; Li, Tiefeng; Zhao, Qian; Yang, Xuxu; Wu, Jingjun; Luo, Yingwu; Xie, Tao

    2014-08-27

    Inspired by the assembly of Lego toys, hydrogel building blocks with heterogeneous responsiveness are assembled utilizing macroscopic supramolecular recognition as the adhesion force. The Lego hydrogel provides 3D transformation upon pH variation. After disassembly of the building blocks by changing the oxidation state, they can be re-assembled into a completely new shape. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  1. LEGO Dimensions meets Doctor Who: Transbranding and New Dimensions of Transmedia Storytelling?

    Directory of Open Access Journals (Sweden)

    Matt Hills

    2016-01-01

    Full Text Available This article explores how the ‘toys-to-life’ videogame LEGO Dimensions (WarnerBros. Interactive Entertainment/Traveller’s Tales/The LEGO Group, 2015 mashes upmany different franchise storyworlds and brands. Specifically, I focus on how DoctorWho (BBC, 1963—, the British TV science fiction series, is licensed and transmediallyengaged with in Dimensions. I consider how the transbranding of LEGO Dimensionsappears to co-opt children’s “transgressive play” (Nørgård and Toft-Nielsen, 2014by combining intellectual properties, but actually continues to operate according tologics of shared corporate ownership where many of the combined storyworlds areultimately owned by Time Warner (placing Dimensions in competition with Disney’sown ‘toys-to-life’ game. Considering what value might accrue to the brand of DoctorWho by participating in LEGO Dimensions, I identify this as a particular example of“What If?” transmedia (Mittell, 2015, arguing that LEGO Dimensions’ Doctor Whonevertheless fluctuates in terms of its brand (inauthenticity. The Starter Pack remainscloser to LEGO Games’/Traveller’s Tales’ established format, subordinating Who, whilstthe separate Level Pack engages more precisely with Doctor Who’s history, albeit stilldisplaying some notable divergences from the TV series (Booth, 2015. Although LEGODimensions challenges influential theories of transmedia storytelling (Jenkins, 2006;Aldred, 2014, its transbranding and child/adult targeting accord with established approachesto transmedia licensing (Santo 2015 and fan-consumer socialization (Kinder1991.

  2. Facilities Management and Value Adding - The LEGO case

    DEFF Research Database (Denmark)

    Jensen, Per Anker; Katchamart, Akarapong

    on the management model for FM included in the European FM standards, recent theories on added value of FM and real estate and the related concept of Value Management from building projects. The paper outlines a preliminary theoretical based management concept, which is investigated, tested and discussed based...... on a case study of LEGO. Results: The study shows that the management model for FM creates a relevant starting point but also that stakeholder and relationship management is an essential aspect of Value Adding Management. The case study confirms the relevance of the basic concept and provides an important...... example of how Value Adding Management can be implemented and added value measured. Practical Implications: The concept of Value Adding Management is expected to increase the awareness of the impacts and strategic importance of FM for organisations and can be a practical tool for facilities managers...

  3. The Use of Lego Technologies in Elementary Teacher Preparation

    Science.gov (United States)

    Hadjiachilleos, Stella; Avraamidou, Lucy; Papastavrou, Stavros

    2013-10-01

    The need to reform science teacher preparation programs has been pointed out in research (Bryan and Abell in J Res Sci Teach 36:121-140, 1999; Bryan and Atwater in Sci Educ 8(6):821-839, 2002; Harrington and Hathaway in J Teach Educ 46(4):275-284, 1995). Science teachers are charged with the responsibility of incorporating both cognitive and non-cognitive parameters in their everyday teaching practices. This often results in their reluctance to teach science because they often lack disciplinary and/or pedagogical expertise required to promote science learning. The purpose of this study is to propose an alternative instructional approach in which Lego vehicles were used as a tool to promote pre-service elementary teachers' development and to examine whether there are non-cognitive parameters that promote or obstruct them from using Lego Technologies as a teaching tool. The context of the study was defined by a teacher preparation program of a private university in a small Mediterranean country. A sample of 28 pre-service elementary teachers, working in five 5-6-member groups were involved in scientific inquiries, during which they had to use vehicles in order to solve scientific problems related to concepts such as gear functioning, force, and motion. The nature of their cognitive engagement in the scientific inquiry process, non-cognitive parameters contributing to their cognitive engagement, and the impact of their involvement in the process on their development were examined through qualitative analysis of pre- and post-inquiry interviews, presentations of their solutions to the scientific problems and of their personal reflective journals.

  4. Gaps in monitoring systems for Implanon NXT services in South Africa: An assessment of 12 facilities in two districts

    Directory of Open Access Journals (Sweden)

    D Pillay

    2017-10-01

    Full Text Available Background. Implanon NXT, a long-acting subdermal contraceptive implant, was introduced in South Africa (SA in early 2014 as part of an expanded contraceptive method mix. After initial high levels of uptake, reports emerged of frequent early removals and declines in use. Monitoring of progress and challenges in implant service delivery could identify aspects of the programme that require strengthening. Objectives. To assess data management and record keeping within implant services at primary care facilities. Methods. We developed a checklist to assess the tools used for monitoring implant services and data reporting to district offices. The checklist was piloted in seven facilities. An additional six high-volume and six low-volume implant insertion clinics in the City of Johannesburg (CoJ, Gauteng Province, and the Dr Kenneth Kaunda District, North West Province, were selected for assessment. Results. All 12 facilities completed a Daily Head Count Register, which tallied the number of clients attending the clinic, but not information about implant use. A more detailed Tick Register recorded services that clinic attendees received, with nine documenting number of implant insertions and six implant removals. A more specific tool, an Insertion Checklist, collected data on insertion procedures and client characteristics, but was only used in CoJ (five of six facilities. Other registers, which were developed de novo by staff at individual facilities, captured more detailed information about insertions and removals, including reasons. Five of six low-volume insertion facilities used these registers, but only three of six high-volume facilities. No facilities used the form specifically developed by the National Department of Health for implant pharmacovigilance. Nine of 12 clinics reported data on numbers of insertions to the district office, six reported removals and none provided data on reasons for removals. Conclusion. For data to inform effective

  5. Gaps in monitoring systems for Implanon NXT services in South Africa: An assessment of 12 facilities in two districts

    Science.gov (United States)

    Pillay, D; Morroni, C; Pleaner, M; Adeogba, O; Chersich, M; Naidoo, N; Mullick, S; Rees, H

    2017-10-01

    Background. Implanon NXT, a long-acting subdermal contraceptive implant, was introduced in South Africa (SA) in early 2014 as part of an expanded contraceptive method mix. After initial high levels of uptake, reports emerged of frequent early removals and declines in use. Monitoring of progress and challenges in implant service delivery could identify aspects of the programme that require strengthening. Objectives. To assess data management and record keeping within implant services at primary care facilities. Methods. We developed a checklist to assess the tools used for monitoring implant services and data reporting to district offices. The checklist was piloted in seven facilities. An additional six high-volume and six low-volume implant insertion clinics in the City of Johannesburg (CoJ), Gauteng Province, and the Dr Kenneth Kaunda District, North West Province, were selected for assessment. Results. All 12 facilities completed a Daily Head Count Register, which tallied the number of clients attending the clinic, but not information about implant use. A more detailed Tick Register recorded services that clinic attendees received, with nine documenting number of implant insertions and six implant removals. A more specific tool, an Insertion Checklist, collected data on insertion procedures and client characteristics, but was only used in CoJ (five of six facilities). Other registers, which were developed de novo by staff at individual facilities, captured more detailed information about insertions and removals, including reasons. Five of six low-volume insertion facilities used these registers, but only three of six high-volume facilities. No facilities used the form specifically developed by the National Department of Health for implant pharmacovigilance. Nine of 12 clinics reported data on numbers of insertions to the district office, six reported removals and none provided data on reasons for removals. Conclusion. For data to inform effective decision

  6. Maternal Experience of Lego Therapy in Families with Children with Autism Spectrum Conditions: What Is the Impact on Family Relationships?

    Science.gov (United States)

    Peckett, Helen; MacCallum, Fiona; Knibbs, Jacky

    2016-01-01

    This study aimed to explore mothers' experience of implementing Lego Therapy at home within the family. Following a Lego Therapy training session, mothers carried out hourly sessions with their child with an autism spectrum condition and the child's sibling, once a week, for 6 weeks. Mothers were interviewed following the intervention, and the…

  7. "Creative Blocs": Action Research Study on the Implementation of Lego as a Tool for Reflective Practice with Social Care Practitioners

    Science.gov (United States)

    Cavaliero, Tamsin

    2017-01-01

    The aim of this study is to investigate whether Lego could be used as a tool for reflective practice with social care practitioners (SCPs) and student practitioners. This article outlines an action research study conducted in an institute of higher education in Ireland. Findings from this study suggest that Lego can be used to support student…

  8. Race to improve student understanding of uncertainty: Using LEGO race cars in the physics lab

    Science.gov (United States)

    Parappilly, Maria; Hassam, Christopher; Woodman, Richard J.

    2018-01-01

    Laboratories using LEGO race cars were developed for students in an introductory physics topic with a high early drop-out rate. In a 2014 pilot study, the labs were offered to improve students' confidence with experiments and laboratory skills, especially uncertainty propagation. This intervention was extended into the intro level physics topic the next year, for comparison and evaluation. Considering the pilot study, we subsequently adapted the delivery of the LEGO labs for a large Engineering Mechanics cohort. A qualitative survey of the students was taken to gain insight into their perception of the incorporation of LEGO race cars into physics labs. For Engineering, the findings show that LEGO physics was instrumental in teaching students the measurement and uncertainty, improving their lab reporting skills, and was a key factor in reducing the early attrition rate. This paper briefly recalls the results of the pilot study, and how variations in the delivery yielded better learning outcomes. A novel method is proposed for how LEGO race cars in a physics lab can help students increase their understanding of uncertainty and motivate them towards physics practicals.

  9. PLAYING LEGO INCREASE COGNITIVE DEVELOPMENT ON PRESCHOOL CHILD (4-5 YEARS OLD

    Directory of Open Access Journals (Sweden)

    Sri Utami

    2017-07-01

    Full Text Available Introduction: The preschool cognitive development can be stimulated with playing activity. The preschool child who stimulateless, their creativity will be checked and it can effect their cognitive development. Playing lego is one of the stimulation which give chance to the preschool child to express creativity and explorate their skill in playing construction. This research was aimed to analyze the effect of playing lego to the preschool cognitive development. Method: Quasy experimental pre post test design was used in this research. Total sample were 18 preschool child (4-5 years old. The independent variable was playing lego and the dependent variable was the cognitive development. Data were analyzed by Wilcoxon Signed Rank Test and Mann Whitney U Test with the significance α<0.05. Result: Result showed that the control group has significance level p=0.059 and the treatment group has significance level p=0.008. The result of Mann Whitney U Test showed p=0.001. Discussion: It can be concluded that playing lego can effect the preschool cognitive development in spatial factor, reasoning, memory, and perceptual speed. It can be suggested to the further research to examine the effect of playing lego to the motoric development or social development.

  10. Long-term outcome of social skills intervention based on interactive LEGO play.

    Science.gov (United States)

    Legoff, Daniel B; Sherman, Michael

    2006-07-01

    LEGO building materials have been adapted as a therapeutic modality for increasing motivation to participate in social skills intervention, and providing a medium through which children with social and communication handicaps can effectively interact. A 3 year retrospective study of long-term outcome for autistic spectrum children participating in LEGO therapy (N = 60) compared Vineland Adaptive Behavior Scale socialization domain (VABS-SD) and Gilliam Autism Rating Scale social interaction subscale (GARS-SI) scores preand post-treatment with a matched comparison sample (N = 57) who received comparable non-LEGO therapy. Although both groups made significant gains on the two outcome measures, LEGO participants improved significantly more than the comparison subjects. Diagnosis and pre-treatment full-scale IQ scores did not predict outcome scores; however, Vineland adaptive behavior composite, Vineland communication domain, and verbal IQ all predicted outcome on the VABS-SD, especially for the LEGO therapy group. Results are discussed in terms of implications for methods of social skills intervention for autistic spectrum disorders.

  11. Using a Lego-based communications simulation to introduce medical students to patient-centered interviewing.

    Science.gov (United States)

    Harding, S R; D'Eon, M F

    2001-01-01

    Teaching patient-centered interviewing skills to medical students can be challenging. We have observed that 1st-year medical students, in particular, do not feel free to concentrate on the interviewing skills because they are preoccupied with complicated technical medical knowledge. The Lego simulation we use with our 1st-year students as part of a professional-skills course overcomes that difficulty. The Lego activity is a role play analogous to a doctor-patient interview that uses identical sets of Legos for the "doctor" and for the "patients" and a small construction that represents a patient history. With a simple questionnaire, data were collected from students at different points during instruction. Results indicate that the Lego activity was very effective in helping students learn the importance of open-ended questioning. It also was rated as highly as the very dynamic interactive part of the instructional session. The effectiveness of the Lego activity may be due to the properties of analogies.

  12. Exploring New Firm Creation Out of Brand Communities: The Case of LEGO

    DEFF Research Database (Denmark)

    Hienerth, Christoph; Lettl, Christopher; Biskjaer, Michael Mose

    2011-01-01

    In the field of new product development, brand communities have attracted a great deal of attention from both academics and practitioners as a means of facilitating consumer-producer co-creation processes. In this paper, we extend the line of research on brand communities to the field...... brand community enjoys a broader range of LEGO products and services. Our findings reveal the emergence of a hybrid organizational form in which new business ideas are neither exploited solely within the boundaries of the focal producer firm, nor pursued by fully independent new firms alone. We observe...... of entrepreneurship studies by examining the conditions under which new firms emerge out of these social networks. Our empirical setting is the global LEGO brand community. As a well-known pioneering firm that is constantly experimenting with new ways of collaborating with its fan and customer base, LEGO recently...

  13. Particle physics brick by brick atomic and subatomic physics explained... in LEGO

    CERN Document Server

    Still, Ben

    2017-01-01

    Using LEGO (R) blocks to create a uniquely visual and clear depiction of the way our universe is put together. This is the perfect introduction to the enigmatic and fascinating world of Quantum Physics.Our story starts with the Big Bang, and along the way, the constructs and interactions within and among atoms and sub-atomic particles, and the forces that play upon them, are clearly explained, with each LEGO (R) block representing a different atomic or sub-atomic particle. The different colours and size denote what that particle is and its relationship with the other 'building blocks'.Each chapter is presented in digestible chunks, using toy building blocks to illustrate the ideas and experiments that have led to some of the biggest discoveries of the past 150 years.Soon you'll be able to construct every element in the Universe using a box of LEGO (R) and this book!

  14. A Basic LEGO Reactor Design for the Provision of Lunar Surface Power

    International Nuclear Information System (INIS)

    John Darrell Bess

    2008-01-01

    A final design has been established for a basic Lunar Evolutionary Growth-Optimized (LEGO) Reactor using current and near-term technologies. The LEGO Reactor is a modular, fast-fission, heatpipe-cooled, clustered-reactor system for lunar-surface power generation. The reactor is divided into subcritical units that can be safely launched with lunar shipments from Earth, and then emplaced directly into holes drilled into the lunar regolith to form a critical reactor assembly. The regolith would not just provide radiation shielding, but serve as neutron-reflector material as well. The reactor subunits are to be manufactured using proven and tested materials for use in radiation environments, such as uranium-dioxide fuel, stainless-steel cladding and structural support, and liquid-sodium heatpipes. The LEGO Reactor system promotes reliability, safety, and ease of manufacture and testing at the cost of an increase in launch mass per overall rated power level and a reduction in neutron economy when compared to a single-reactor system. A single unshielded LEGO Reactor subunit has an estimated mass of approximately 448 kg and provides approximately 5 kWe. The overall envelope for a single subunit with fully extended radiator panels has a height of 8.77 m and a diameter of 0.50 m. Six subunits could provide sufficient power generation throughout the initial stages of establishing a lunar outpost. Portions of the reactor may be neutronically decoupled to allow for reduced power production during unmanned periods of base operations. During later stages of lunar-base development, additional subunits may be emplaced and coupled into the existing LEGO Reactor network, subject to lunar base power demand. Improvements in reactor control methods, fuel form and matrix, shielding, as well as power conversion and heat rejection techniques can help generate an even more competitive LEGO Reactor design. Further modifications in the design could provide power generative opportunities for

  15. Lego Robots & Autism Spectrum Disorder: a potential partnership?

    Directory of Open Access Journals (Sweden)

    Sandra Costa

    2016-06-01

    Full Text Available Individuals with autism spectrum disorder (ASD present difficulties in developing social behaviours, in communicating gestural or verbally, and they may present some repetitive motor activities. The objective of this study was to improve social competences and to enable the transfer of acquired skills of five children with ASD and intellectual disabilities using a low-cost Lego robot as a mediator. The proposed methodology was divided in five phases: Familiarization, Pre-test, Practice, Post-Test and Transfer of Skills. The study ran in two sequential periods at different places. Each of these periods tackled different individual research questions and goals (taking into account the target group. During each period, the proposed methodology had to be adjusted according to the current context. Therefore, different experimental scenarios and corresponding specific goals had to be delineated. Results show that joint attention of the children increased over the sessions; and interaction with the researcher was verified. Furthermore, results show that there was an effective transfer of skills in the addressed case studies. This reinforces conclusions that robots seem, in fact, powerful tools that should be explored concerning this target population. But a more detailed study is required. The proposed methodology can be used by professionals and parents as a complement to common interventions.

  16. Dorello's Canal for Laymen: A Lego-Like Presentation.

    Science.gov (United States)

    Ezer, Haim; Banerjee, Anirban Deep; Thakur, Jai Deep; Nanda, Anil

    2012-06-01

    Objective Dorello's canal was first described by Gruber in 1859, and later by Dorello. Vail also described the anatomy of Dorello's canal. In the preceding century, Dorello's canal was clinically important, in understanding sixth nerve palsy and nowadays it is mostly important for skull base surgery. The understanding of the three dimensional anatomy, of this canal is very difficult to understand, and there is no simple explanation for its anatomy and its relationship with adjacent structures. We present a simple, Lego-like, presentation of Dorello's canal, in a stepwise manner. Materials and Methods Dorello's canal was dissected in five formalin-fixed cadaver specimens (10 sides). The craniotomy was performed, while preserving the neural and vascular structures associated with the canal. A 3D model was created, to explain the canal's anatomy. Results Using the petrous pyramid, the sixth nerve, the cavernous sinus, the trigeminal ganglion, the petorclival ligament and the posterior clinoid, the three-dimensional structure of Dorello's canal was defined. This simple representation aids in understanding the three dimensional relationship of Dorello's canal to its neighboring structures. Conclusion Dorello's canal with its three dimensional structure and relationship to its neighboring anatomical structures could be reconstructed using a few anatomical building blocks. This method simplifies the understanding of this complex anatomical structure, and could be used for teaching purposes for aspiring neurosurgeons, and anatomy students.

  17. How LEGO Built the Foundations and Enterprise Capabilities for Digital Leadership

    DEFF Research Database (Denmark)

    El Sawy, Omar; Henrik, Amsinck; Kræmmergaard, Pernille

    2016-01-01

    We define digital leadership as doing the right things for the strategic success of digitalization for the enterprise and its business ecosystem. Digital leadership means thinking differently about business strategy, business models, the IT function, enterprise platforms, mindsets and skill sets......, and the workplace. Based on the decade-long digitalization journey and experiences of the LEGO Group, this article provides insights on building the foundations for enhancing enterprise capabilities for digital leadership. Leveraging digitalization is one of the LEGO Group’s four strategic priorities...... and is fundamental to it being a world leader in its industry...

  18. Alle ønsker sig en Lego-aktie til jul

    DEFF Research Database (Denmark)

    Iversen, Martin Jes

    2014-01-01

    Både små og store investorer får julelys i øjnene ved tanken om at eje et stykke af Lego. På sigt kunne en børsnotering gøre Danmark til et rigere land.......Både små og store investorer får julelys i øjnene ved tanken om at eje et stykke af Lego. På sigt kunne en børsnotering gøre Danmark til et rigere land....

  19. Innovation management based on proactive engagement of customers: A case study on LEGO Group. Part I: Innovation Management at Lego Group

    Science.gov (United States)

    Rusu, G.; Avasilcăi, S.

    2015-11-01

    Customers' proactive engagement in the innovation process represents a business priority for companies which adopt the open innovation business model. In such a context, it is of outmost importance for companies to use the online environment and social media, in order to create an interactive and open dialogue with customers and other important external stakeholders, achieving to gather creative solutions and innovative ideas by involving them in the process of co-creating value. Thus, the current paper is based on a case study approach, which aims to highlight the open innovation business model of the LEGO Group, one of the most successful and active company in engaging customers in submitting ideas and creative solutions for developing new products and new technologies, through online platforms. The study then proceeds to analyze the innovation management at LEGO Group, emphasizing the most important elements regarding the management team, the success and failures, the evolution of the LEGO products focusing on the innovation efforts of the company, its mission, vision, and values, emphasizing the innovation terms which guide the actions and objectives of the LEGO Group. Also, the research based on the case study approach, outlines the most important policies and strategies of the company, the organizational structure consisting of flat structures which facilitate the orientation of the team management on the innovation process and the proactive involvement of consumers and other external stakeholders in product development, highlighting also the most important activities developed by the management team in exploring the new opportunities which may occur on the market, involving customers in sharing their ideas at festivals, participating to discussions of adult fans on web-based platforms and establishing partnerships with the external stakeholders in order to create value. Moreover, the paper is focused on identifying the company's concerns regarding the

  20. Fast generation of macro basis functions for LEGO through the adaptive cross approximation

    NARCIS (Netherlands)

    Lancellotti, V.

    2015-01-01

    We present a method for the fast generation of macro basis functions in the context of the linear embedding via Green's operators approach (LEGO) which is a domain decomposition technique based on the combination of electromagnetic bricks in turn described by means of scattering operators. We show

  1. Long-term LEGO therapy with humanoid robot for children with ASD

    NARCIS (Netherlands)

    Barakova, E.I.; Bajracharya, P.; Willemsen, M.H.J.; Lourens, T.; Huskens, B.

    2015-01-01

    To utilise the knowledge gained from highly specialised domains as autism therapy to robot-based interactive training platforms, an innovative design approach is needed. We present the process of content creation and co-design of LEGO therapy for children with autism spectrum disorders performed by

  2. ‘Everything is awesome’ : The LEGO movie and the affective politics of security

    NARCIS (Netherlands)

    Goggin, J.

    2017-01-01

    Scholarship on the finance-security nexus has typically been concerned with ‘first order’ phenomena, such as the interpenetration of the finance and security sectors. This article contributes to the debate by turning to an apparent epiphenomenon, namely The LEGO Movie, and using it to address some

  3. Expressivity in Open-ended Constructive Play: Building and Playing Musical Lego Instruments

    DEFF Research Database (Denmark)

    Jakobsen, Kasper; Stougaard, Jeppe; Petersen, Marianne Graves

    2016-01-01

    This paper presents the findings from a case study in designing for open-ended constructive play for children. The study is based on a workshop where more that 150 children in ages 3-13 built and played their own musical instruments from Lego. The children used different sensors for playing...

  4. Electromagnetic modelling of large complex 3-D structures with LEGO and the eigencurrent expansion method

    NARCIS (Netherlands)

    Lancellotti, V.; Hon, de B.P.; Tijhuis, A.G.

    2009-01-01

    Linear embedding via Green's operators (LEGO) is a computational method in which the multiple scattering between adjacent objects - forming a large composite structure - is determined through the interaction of simple-shaped building domains, whose electromagnetic (EM) behavior is accounted for by

  5. Organizational System for the LEGO WeDo 2.0 Robotics System

    Science.gov (United States)

    Dolecheck, Suzann Hagan; Ewers, Timothy

    2017-01-01

    In this article, we explain an organizational system for the new LEGO Education WeDo 2.0 Core Set used in 4-H robotics; in school enrichment, afterschool, and other youth robotics programs; and by hobbyists. The system presented is for organizing WeDo parts into a translucent parts tray that includes part names and numbers. The article provides…

  6. Improving the Teaching of Discrete-Event Control Systems Using a LEGO Manufacturing Prototype

    Science.gov (United States)

    Sanchez, A.; Bucio, J.

    2012-01-01

    This paper discusses the usefulness of employing LEGO as a teaching-learning aid in a post-graduate-level first course on the control of discrete-event systems (DESs). The final assignment of the course is presented, which asks students to design and implement a modular hierarchical discrete-event supervisor for the coordination layer of a…

  7. LEGO bricks used as chemotactic chambers: evaluation by a computer-assisted image analysis technique.

    Science.gov (United States)

    Azzarà, A; Chimenti, M

    2004-01-01

    One of the main techniques used to explore neutrophil motility, employs micropore filters in chemotactic chambers. Many new models have been proposed, in order to perform multiple microassays in a rapid, inexpensive and reproducible way. In this work, LEGO bricks have been used as chemotactic chambers in the evaluation of neutrophil random motility and chemotaxis and compared with conventional Boyden chambers in a "time-response" experiment. Neutrophil motility throughout the filters was evaluated by means of an image-processing workstation, in which a dedicated algorithm recognizes and counts the cells in several fields and focal planes throughout the whole filter; correlates counts and depth values; performs a statistical analysis of data; calculates the true value of neutrophil migration; determines the distribution of cells; and displays the migration pattern. By this method, we found that the distances travelled by the cells in conventional chambers and in LEGO bricks were perfectly identical, both in random migration and under chemotactic conditions. Moreover, no interference with the physiological behaviour of neutrophils was detectable. In fact, the kinetics of migration was identical both in random migration (characterized by a gaussian pattern) and in chemotaxis (characterized by a typical stimulation peak, previously identified by our workstation). In conclusion, LEGO bricks are extremely precise devices. They are simple to use and allow the use of small amounts of chemoattractant solution and cell suspension, supplying by itself a triplicate test. LEGO bricks are inexpensive, fast and suitable for current diagnostic activity or for research investigations in every laboratory.

  8. Form, Content, and Gender Differences in Lego[R] Block Creations by Japanese Adolescents

    Science.gov (United States)

    Kato, Daiki; Morita, Miyako

    2009-01-01

    This study examined general features of Lego block creations produced by Japanese adolescents with no known mental health disorders. The block creations of 33 participants were assessed for form, content, and gender differences. Time spent on the task, amount of area covered, and quantity and types of blocks used were measured and correlated with…

  9. Teaching of Computer Science Topics Using Meta-Programming-Based GLOs and LEGO Robots

    Science.gov (United States)

    Štuikys, Vytautas; Burbaite, Renata; Damaševicius, Robertas

    2013-01-01

    The paper's contribution is a methodology that integrates two educational technologies (GLO and LEGO robot) to teach Computer Science (CS) topics at the school level. We present the methodology as a framework of 5 components (pedagogical activities, technology driven processes, tools, knowledge transfer actors, and pedagogical outcomes) and…

  10. Long-Term Outcome of Social Skills Intervention Based on Interactive LEGO[C] Play

    Science.gov (United States)

    Legoff, Daniel B.; Sherman, Michael

    2006-01-01

    LEGO[C] building materials have been adapted as a therapeutic modality for increasing motivation to participate in social skills intervention, and providing a medium through which children with social and communication handicaps can effectively interact. A 3 year retrospective study of long-term outcome for autistic spectrum children participating…

  11. Calling all LEGO lovers! Add a mini control room to your collection

    CERN Multimedia

    Katarina Anthony

    2015-01-01

    The mini LHC Lego project launched in March (see here) now has almost 6,000 supporters - well on its way to the 10,000 votes needed for it to (hopefully!) hit store shelves. This week, the project added a new feature to its line: a mini control centre! The new LEGO Control centre, featuring operators "Kerstin" and "Marco".   The mini LHC project is the brainchild of ATLAS PhD student Nathan Readioff, who designed Lego replicas of the LHC and the ALICE, ATLAS, CMS and LHCb experiments on a micro scale. Each detector model is small enough to fit in the palm of your hand but crammed with detailed internal systems revealed by cutaway walls. Every major detector component is represented by a Lego piece. Now, Nathan has created a control centre to complement the mini LHC project. This would be an add-on feature for Lego’s consideration, should they decide to develop the accelerator into a box set. “The control centre is ...

  12. Spiral CT scanning technique in the detection of aspiration of LEGO foreign bodies

    International Nuclear Information System (INIS)

    Applegate, K.E.; Dardinger, J.T.; Herts, B.R.; Davros, W.J.; Obuchowski, N.A.; Lieber, M.L.; Maneker, A.

    2001-01-01

    Background:. Radiolucent foreign bodies (FBs) such as plastic objects and toys remain difficult to identify on conventional radiographs of the neck and chest. Children may present with a variety of respiratory complaints, which may or may not be due to a FB. Objective: To determine whether radiolucent FBs such as plastic LEGOs and peanuts can be seen in the tracheobronchial tree or esophagus using low-dose spiral CT, and, if visible, to determine the optimal CT imaging technique. Materials and methods: Multiple spiral sequences were performed while varying the CT parameters and the presence and location of FBs in either the trachea or the esophagus first on a neck phantom and then a cadaver. Sequences were rated by three radiologists blinded to the presence of a FB using a single scoring system. Results: The LEGO was well visualized in the trachea by all three readers (both lung and soft-tissue windowing: combined sensitivity 89 %, combined specificity 89 %) and to a lesser extent in the esophagus (combined sensitivity 31 %, combined specificity 100 %). The peanut was not well visualized (combined sensitivity < 35 %). The optimal technique for visualizing the LEGO was 120 kV, 90 mA, 3-mm collimation, 0.75 s/revolution, and 2.0 pitch. This allowed for coverage of the cadaver tracheobronchial tree (approximately 11 cm) in about 18 s. Although statistical power was low for detecting significant differences, all three readers noted higher average confidence ratings with lung windowing among 18 LEGO-in-trachea scans. Conclusion: Rapid, low-dose spiral CT may be used to visualize LEGO FBs in the airway or esophagus. Peanuts were not well visualized. (orig.)

  13. Spiral CT scanning technique in the detection of aspiration of LEGO foreign bodies.

    Science.gov (United States)

    Applegate, K E; Dardinger, J T; Lieber, M L; Herts, B R; Davros, W J; Obuchowski, N A; Maneker, A

    2001-12-01

    Radiolucent foreign bodies (FBs) such as plastic objects and toys remain difficult to identify on conventional radiographs of the neck and chest. Children may present with a variety of respiratory complaints, which may or may not be due to a FB. To determine whether radiolucent FBs such as plastic LEGOs and peanuts can be seen in the tracheobronchial tree or esophagus using low-dose spiral CT, and, if visible, to determine the optimal CT imaging technique. Multiple spiral sequences were performed while varying the CT parameters and the presence and location of FBs in either the trachea or the esophagus first on a neck phantom and then a cadaver. Sequences were rated by three radiologists blinded to the presence of a FB using a single scoring system. The LEGO was well visualized in the trachea by all three readers (both lung and soft-tissue windowing: combined sensitivity 89 %, combined specificity 89 %) and to a lesser extent in the esophagus (combined sensitivity 31 %, combined specificity 100 %). The peanut was not well visualized (combined sensitivity LEGO was 120 kV, 90 mA, 3-mm collimation, 0.75 s/revolution, and 2.0 pitch. This allowed for coverage of the cadaver tracheobronchial tree (approximately 11 cm) in about 18 s. Although statistical power was low for detecting significant differences, all three readers noted higher average confidence ratings with lung windowing among 18 LEGO-in-trachea scans. Rapid, low-dose spiral CT may be used to visualize LEGO FBs in the airway or esophagus. Peanuts were not well visualized.

  14. Highly Manufacturable Deep (Sub-Millimeter) Etching Enabled High Aspect Ratio Complex Geometry Lego-Like Silicon Electronics

    KAUST Repository

    Ghoneim, Mohamed T.; Hussain, Muhammad Mustafa

    2017-01-01

    A highly manufacturable deep reactive ion etching based process involving a hybrid soft/hard mask process technology shows high aspect ratio complex geometry Lego-like silicon electronics formation enabling free-form (physically flexible

  15. Lightweight Expression of Granular Objects (LEGO) Content Modeling Using the SNOMED CT Observables Model to Represent Nursing Assessment Data.

    Science.gov (United States)

    Johnson, Christie

    2016-01-01

    This poster presentation presents a content modeling strategy using the SNOMED CT Observable Model to represent large amounts of detailed clinical data in a consistent and computable manner that can support multiple use cases. Lightweight Expression of Granular Objects (LEGOs) represent question/answer pairs on clinical data collection forms, where a question is modeled by a (usually) post-coordinated SNOMED CT expression. LEGOs transform electronic patient data into a normalized consumable, which means that the expressions can be treated as extensions of the SNOMED CT hierarchies for the purpose of performing subsumption queries and other analytics. Utilizing the LEGO approach for modeling clinical data obtained from a nursing admission assessment provides a foundation for data exchange across disparate information systems and software applications. Clinical data exchange of computable LEGO patient information enables the development of more refined data analytics, data storage and clinical decision support.

  16. LEGO: a novel method for gene set over-representation analysis by incorporating network-based gene weights.

    Science.gov (United States)

    Dong, Xinran; Hao, Yun; Wang, Xiao; Tian, Weidong

    2016-01-11

    Pathway or gene set over-representation analysis (ORA) has become a routine task in functional genomics studies. However, currently widely used ORA tools employ statistical methods such as Fisher's exact test that reduce a pathway into a list of genes, ignoring the constitutive functional non-equivalent roles of genes and the complex gene-gene interactions. Here, we develop a novel method named LEGO (functional Link Enrichment of Gene Ontology or gene sets) that takes into consideration these two types of information by incorporating network-based gene weights in ORA analysis. In three benchmarks, LEGO achieves better performance than Fisher and three other network-based methods. To further evaluate LEGO's usefulness, we compare LEGO with five gene expression-based and three pathway topology-based methods using a benchmark of 34 disease gene expression datasets compiled by a recent publication, and show that LEGO is among the top-ranked methods in terms of both sensitivity and prioritization for detecting target KEGG pathways. In addition, we develop a cluster-and-filter approach to reduce the redundancy among the enriched gene sets, making the results more interpretable to biologists. Finally, we apply LEGO to two lists of autism genes, and identify relevant gene sets to autism that could not be found by Fisher.

  17. Elite weapons for lego fanatics build working handcuffs, body armor, batons, sunglasses, and the world's hardest hitting brick guns

    CERN Document Server

    Hüdepohl, Martin

    2015-01-01

    The last LEGO brick weapon construction book and design guide you'll ever need, Elite Weapons for LEGO Fanatics features building instructions for thirteen fully functional LEGO masterpieces, including the monstrous, 27-inch-long Dinosaur Superior, a fully automatic combat rifle that can puncture aluminum cans, and a highly detailed HK G3 brick replica. Also featuring a helmet, a baton, handcuffs, sunglasses, and a grappling hook gun, which allows you to retrieve distant objects without ever leaving your seat, Elite Weapons for LEGO Fanatics includes a chapter on how to find the LEGO pieces you need and a comic book story featuring a hero using the weapons in action. LEGO fans of all ages and skill levels will find a treasure trove of models, including: • Hammerhead Jr., a single-shot crossbow and it's big brother, the heavy-duty Hammerhead Sr. • Panzer Pod combat helmet • KlopSTOCK baton • Melody, a rubber-firing machine pistol • Nice-1, a pocket-sized pistol that packs a punch • Chinahook harpoon gun ...

  18. Project Luna Succendo: The Lunar Evolutionary Growth-Optimized (LEGO) Reactor

    Science.gov (United States)

    Bess, John Darrell

    A final design has been established for a basic Lunar Evolutionary Growth-Optimized (LEGO) Reactor using current and near-term technologies. The LEGO Reactor is a modular, fast-fission, heatpipe-cooled, clustered-reactor system for lunar-surface power generation. The reactor is divided into subcritical units that can be safely launched within lunar shipments from the Earth, and then emplaced directly into holes drilled into the lunar regolith to form a critical reactor assembly. The regolith would not just provide radiation shielding, but serve as neutron-reflector material as well. The reactor subunits are to be manufactured using proven and tested materials for use in radiation environments, such as uranium-dioxide fuel, stainless-steel cladding and structural support, and liquid-sodium heatpipes. The LEGO Reactor system promotes reliability, safety, and ease of manufacture and testing at the cost of an increase in launch mass per overall rated power level and a reduction in neutron economy when compared to a single-reactor system. A single unshielded LEGO Reactor subunit has an estimated mass of approximately 448 kg and provides 5 kWe using a free-piston Stirling space converter. The overall envelope for a single unit with fully extended radiator panels has a height of 8.77 m and a diameter of 0.50 m. The subunits can be placed with centerline distances of approximately 0.6 m in a hexagonal-lattice pattern to provide sufficient neutronic coupling while allowing room for heat rejection and interstitial control. A lattice of six subunits could provide sufficient power generation throughout the initial stages of establishing a lunar outpost. Portions of the reactor may be neutronically decoupled to allow for reduced power production during unmanned periods of base operations. During later stages of lunar-base development, additional subunits may be emplaced and coupled into the existing LEGO Reactor network Future improvements include advances in reactor control

  19. LEGO-based Robotics in Higher Education: 15 Years of Student Creativity

    Directory of Open Access Journals (Sweden)

    Ethan Danahy

    2014-02-01

    Full Text Available Our goal in this article is to reflect on the role LEGO robotics has played in college engineering education over the last 15 years, starting with the introduction of the RCX in 1998 and ending with the introduction of the EV3 in 2013. By combining a modular computer programming language with a modular building platform, LEGO Education has allowed students (of all ages to become active leaders in their own education as they build everything from animals for a robotic zoo to robots that play children's games. Most importantly, it allows all students to develop different solutions to the same problem to provide a learning community. We look first at how the recent developments in the learning sciences can help in promoting student learning in robotics. We then share four case studies of successful college-level implementations that build on these developments.

  20. The Impact of Lean Thinking on Workforce Motivation: A Success Factor at LEGO Manufacturing Ltd.

    Directory of Open Access Journals (Sweden)

    Oláh Judit

    2017-06-01

    Full Text Available Several enterprises have tried to introduce the lean approach in order to enhance competitiveness. However, the only successful ones were the companies which understood that lean is not only about methods and tools, but the people using them: employees. The only way an enterprise can become a lean organisation is if all of its members deeply identify with the organisation’s principles, which is then manifested in all decisions and actions of the organisation. The aim of this study is to present the practical use of the lean approach in the Nyíregyháza plant of LEGO. Based on the questionnaire results and our observations, we present the current situation of LEGO in accordance with the same points and compare it to an ideal situation. We then make improvement recommendations in all cases when negative changes were observed.

  1. A LEGO Watt balance: An apparatus to determine a mass based on the new SI

    Science.gov (United States)

    Chao, L. S.; Schlamminger, S.; Newell, D. B.; Pratt, J. R.; Seifert, F.; Zhang, X.; Sineriz, G.; Liu, M.; Haddad, D.

    2015-11-01

    A global effort to redefine our International System of Units (SI) is underway, and the change to the new system is expected to occur in 2018. Within the newly redefined SI, the present base units will still exist but be derived from fixed numerical values of seven reference constants. In particular, the unit of mass (the kilogram) will be realized through a fixed value of the Planck constant h. A so-called watt balance, for example, can then be used to realize the kilogram unit of mass within a few parts in 108. Such a balance has been designed and constructed at the National Institute of Standards and Technology. For educational outreach and to demonstrate the principle, we have constructed a LEGO tabletop watt balance capable of measuring a gram-level masses to 1% relative uncertainty. This article presents the design, construction, and performance of the LEGO watt balance and its ability to determine h.

  2. The educational affordances of Lego-based play in primary school

    Directory of Open Access Journals (Sweden)

    Luisa Salmaso

    2013-12-01

    Full Text Available Questo articolo presenta un’esperienza didattica attuata in una classe prima e in una classe seconda della Scuola Primaria mediante l’utilizzo di mattoncini Lego. Al termine di questo percorso è stato possibile delineare alcuni elementi utili per sostenere l’efficacia del gioco a favore dello sviluppo delle abilità visuo-spaziali e di pianificazione, anche in una prospettiva inclusiva e di pari opportunità di genere.

  3. METODE BERMAIN LEGO DALAM UPAYA MENUMBUHKEMBANGKAN KECERDASAN KINESTETIK PADA ANAK USIA DINI (Sudi Kasus di Lembaga Pendidikan Manusia Unggul

    Directory of Open Access Journals (Sweden)

    Fitria Yulianti Ningtyas

    2018-01-01

    Full Text Available Penelitian ini membahas tentang upaya menumbuhkembangkan kecerdasan kinestetik pada anak usia dini melalui metode bermain Lego di Lembaga Pendidikan Manusia Unggul. Melalui permainan Lego, anak yang memiliki gaya belajar kinestetik akan terstimulasi kecerdasan dan kemampuannya, terutama kecerdasan kinestetiknya. Sebab pada dasarnya, anak dengan gaya belajar kinestetik, memiliki kelebihan dalam ruang gerak serta berlebih energinya. Sehingga saat belajar, anak membutuhkan ruang yang cukup luas, serta permainan yang menantang. Penelitian ini bertujuan: 1 Untuk mengetahui dan menganalisis bagaimana langkah-langkah dalam menerapkan metode bermain Lego dalam upaya menumbuhkembangkan kecerdasan kinestetik pada anak usia dini di Lembaga Pendidikan Manusia Unggul. 2 Untuk mengetahui dan menganalisis bagaimana pelaksanaan dalam menerapkan metode bermain Lego dalam upaya menumbuhkembangkan kecerdasan kinestetik pada anak usia dini di Lembaga Manusia Unggul. 3 Untuk mengetahui dan menganalisis dampak dan hasil dari penerapan metode bermain Lego dalam upaya menumbuhkembangkan kecerdasan kinestetik pada anak usia dini di Lembaga Pendidikan Manusia Unggul. 4 Untuk mengetahui dan menganalisis apa saja faktor pendukung dan penghambat dalam menerapkan metode bermain Lego dalam upaya menumbuhkembangkan kecerdasan kinestetik pada anak usia dini di Lembaga Manusia Unggul. Penelitian ini menggunakan pendekatan kualitatif naturalistik. Ciri yang menonjol dari penelitian ini adalah cara pengamatan dan pengumpulan datanya dilakukan dalam latar/setting alamiah. Artinya tanpa memanipulasi subyek yang diteliti. Penelitian ini mencakup juga keyakinan terhadap sifat dasar dari realitas (yang diamati, hubungan antara orang yang mencoba mengetahui sesuatu (peneliti dan hal yang mereka coba ketahui (yang diteliti, peranan/pengaruh dari nilai-nilai (yang dianut peneliti dan variable-variabel lainnya yang serupa itu.Kajian data pada penelitian ini didapat dari hasil pengamatan

  4. A multicolor panel of novel lentiviral "gene ontology" (LeGO) vectors for functional gene analysis.

    Science.gov (United States)

    Weber, Kristoffer; Bartsch, Udo; Stocking, Carol; Fehse, Boris

    2008-04-01

    Functional gene analysis requires the possibility of overexpression, as well as downregulation of one, or ideally several, potentially interacting genes. Lentiviral vectors are well suited for this purpose as they ensure stable expression of complementary DNAs (cDNAs), as well as short-hairpin RNAs (shRNAs), and can efficiently transduce a wide spectrum of cell targets when packaged within the coat proteins of other viruses. Here we introduce a multicolor panel of novel lentiviral "gene ontology" (LeGO) vectors designed according to the "building blocks" principle. Using a wide spectrum of different fluorescent markers, including drug-selectable enhanced green fluorescent protein (eGFP)- and dTomato-blasticidin-S resistance fusion proteins, LeGO vectors allow simultaneous analysis of multiple genes and shRNAs of interest within single, easily identifiable cells. Furthermore, each functional module is flanked by unique cloning sites, ensuring flexibility and individual optimization. The efficacy of these vectors for analyzing multiple genes in a single cell was demonstrated in several different cell types, including hematopoietic, endothelial, and neural stem and progenitor cells, as well as hepatocytes. LeGO vectors thus represent a valuable tool for investigating gene networks using conditional ectopic expression and knock-down approaches simultaneously.

  5. PENERAPAN LEGO BRICKS DALAM PEMBELAJARAN SEBAGAI STRATEGI UNTUK MENINGKATKAN KECERDASAN MATEMATIS SISWA DALAM MENGHITUNG BILANGAN BERPANGKAT

    Directory of Open Access Journals (Sweden)

    Mutia Rahma Setyani

    2017-12-01

    Full Text Available Penelitian ini bertujuan untuk mengetahui hasil pembelajaran dan mendeskripsikan kecerdasan matematis siswa dalam menghitung bilangan berpangkat setelah menggunakan lego bricks pada siswa kelas III Tahassus MIS Ta’allamul Huda. Penelitian ini menggunakan Penelitian Tindakan Kelas ini dengan model pembelajaran Cooperative Learning. Subjek penelitian adalah siswa kelas III ahassus MIS a’allamul Huda yang berjumlah 24 siswa. Data dikumpulkan melalui observasi dan wawancara, selanjutnya dianalisis secara kualitatif. Hasil penelitian menunjukkan bahwa keberhasilan penerapan lego bricks pada perhitungan bilangan berpangkat meningkat pada setiap siklusnya. Pada tahap Pra Siklus, hanya 40% siswa yang lulus dalam mengerjakan soal-soal dari bilangan berpangkat, kemudian pada Siklus I berdasarkan hasil observasi didapatkan kenaikan yang signifikan yaitu 80% siswa yang lulus dalam mengerjakan soal mengenai bilangan berpangkat. Masih ada 20% siswa yang masih kesulitan dalam mengerjakan soal tersebut. Selanjutnya setelah dilakukan perbaikan, pada Siklus II didapat kenaikan yang luar biasa yaitu seluruh kelompok siswa lulus dalam mengerjakan soal mengenai bilangan berpangkat. Hal tersebut dibuktikan kembali melalui hasil post test pada tahap Pasca Siklus dimana nilai seluruh siswa berada diatas kriteria ketuntasan minimum, yaitu 85-100 sehingga penerapan lego bricks untuk meningkatkan kecerdasan matematis siswa dalam menghitung bilangan berpangkat dikatakan berhasil.

  6. A model of Alto Lazio boiling water reactor using the LEGO code balance of plant simulation

    International Nuclear Information System (INIS)

    Spelta, S.; Garbossa, G.B.

    1989-01-01

    An extensive effort has been made at the Italian National Electricity Board (ENEL) to construct and validate a LEGO model capable of simulating the operational transients of the Alto Lazio Nuclear Station, a two twin-units site with BWR/6 class reactors, rated at 2894 MWt and with Mark III containment. LEGO is a modular package developed at the Research and development Department of the Italian National Electricity Board (CRA-ENEL) for computer aided modeling of fossil-fired and nuclear steam power plants. In this paper a system analysis model capable of describing steady-state and transient performance of the Balance of Plant (BOP) of the Alto Lazio Power Station is presented. This is one of two companion papers devoted to the description of the overall plant model including both the Nuclear Steam Supply System (NSSS) and the BOP. In the paper, after a brief summary of the main LEGO characteristics, a description of the BOP lay-out is presented. The overall model, which has been set-up, including control systems and automation, is very detailed and consists of almost 2000 differential or algebraic equations. After a brief description of the mathematical model, two significant transients obtained using the overall model are presented and discussed

  7. Use of LEGO as a therapeutic medium for improving social competence.

    Science.gov (United States)

    LeGoff, Daniel B

    2004-10-01

    A repeated-measures, waiting list control design was used to assess efficacy of a social skills intervention for autistic spectrum children focused on individual and group LEGO play. The intervention combined aspects of behavior therapy, peer modeling and naturalistic communication strategies. Close interaction and joint attention to task play an important role in both group and individual therapy activities. The goal of treatment was to improve social competence (SC) which was construed as reflecting three components: (1) motivation to initiate social contact with peers; (2) ability to sustain interaction with peers for a period of time: and (3) overcoming autistic symptoms of aloofness and rigidity. Measures for the first two variables were based on observation of subjects in unstructured situations with peers; and the third variable was assessed using a structured rating scale, the SI subscale of the GARS. Results revealed significant improvement on all three measures at both 12 and 24 weeks with no evidence of gains during the waiting list period. No gender differences were found on outcome, and age of clients was not correlated with outcome. LEGO play appears to be a particularly effective medium for social skills intervention, and other researchers and clinicians are encouraged to attempt replication of this work, as well as to explore use of LEGO in other methodologies, or with different clinical populations.

  8. Build Your Own Particle Detector. Education and outreach through ATLAS LEGO models and events

    CERN Document Server

    AUTHOR|(INSPIRE)INSPIRE-00220289; The ATLAS collaboration

    2016-01-01

    To support the outreach activities of ATLAS institutes and to grasp people’s attention in science exhibitions and during public events, a very detailed model of the experiment built entirely out of LEGO bricks as well as an outreach programme using LEGO bricks to get people to think about particle detectors and involve them into a conversation about particle physics in general have been created. A large LEGO model, consisting of about 9500 pieces, has been exported to more than 55 ATLAS institutes and has been used in numerous exhibitions to explain the proportion and composition of the experiment to the public. As part of the Build Your Own Particle Detector programme (byopd.org) more than 15 events have been conducted, either involving a competition to design and build the best particle detector from a random pile of pieces or to take part in the construction of one of the large models, as part of a full day outreach event. Recently, miniature models of all four main LHC experiments, that will be used at ...

  9. LEGO[R] Therapy and the Social Use of Language Programme: An Evaluation of Two Social Skills Interventions for Children with High Functioning Autism and Asperger Syndrome

    Science.gov (United States)

    Owens, Gina; Granader, Yael; Humphrey, Ayla; Baron-Cohen, Simon

    2008-01-01

    LEGO[R] therapy and the Social Use of Language Programme (SULP) were evaluated as social skills interventions for 6-11 year olds with high functioning autism and Asperger Syndrome. Children were matched on CA, IQ, and autistic symptoms before being randomly assigned to LEGO or SULP. Therapy occurred for 1 h/week over 18 weeks. A no-intervention…

  10. Innovation management based on proactive engagement of customers: A case study on LEGO Group. Part II: Challenge of engaging the digital customer

    Science.gov (United States)

    Avasilcăi, S.; Rusu, G.

    2015-11-01

    To foster the development of innovative products and new technologies, nowadays companies use an open innovation system, encouraging stakeholders to contribute, using the companies’ online platforms for open innovation or social media, bringing and sharing creative solutions and ideas in order to respond to challenging needs the company directly expresses. Accordingly, the current research continues the analysis of the LEGO Group innovation efforts, aiming to provide a case study approach based on describing the most important projects and online instruments company uses to interact with customers and other external stakeholders. Thus, by analysing the experience of the company in developing projects of involving stakeholders in the innovation processes, the article emphasizes the objective of these past projects developed by LEGO Group, outlining their objectives regarding the focus on the product or process innovation, the team management and stakeholders involved in the innovation actions and the results they obtained. Moreover, the case study highlights the features of the most important online instruments LEGO Group uses at the moment for engaging LEGO fans, children, parents, and other external stakeholders in developing new LEGO sets. Thus, LEGO online instruments provide the opportunity for customers to be creative and to respond to LEGO management team challenges. Accordingly, LEGO involve customers in bringing innovative ideas for LEGO sets through LEGO Ideas instrument, which aims to engage customers in submitting projects, voting and supporting ideas and also sharing them on social media. Also, the research emphasizes the role of supporting the open dialogue and interaction with customers and other external stakeholders through LEGO.com Create & Share Galleries instrument, using their creativity to upload innovative models in the public galleries. The continuous challenges LEGO launches for their fans create a long-term connection between company and

  11. LEGO therapy and the social use of language programme: an evaluation of two social skills interventions for children with high functioning autism and Asperger Syndrome.

    Science.gov (United States)

    Owens, Gina; Granader, Yael; Humphrey, Ayla; Baron-Cohen, Simon

    2008-11-01

    LEGO therapy and the Social Use of Language Programme (SULP) were evaluated as social skills interventions for 6-11 year olds with high functioning autism and Asperger Syndrome. Children were matched on CA, IQ, and autistic symptoms before being randomly assigned to LEGO or SULP. Therapy occurred for 1 h/week over 18 weeks. A no-intervention control group was also assessed. Results showed that the LEGO therapy group improved more than the other groups on autism-specific social interaction scores (Gilliam Autism Rating Scale). Maladaptive behaviour decreased significantly more in the LEGO and SULP groups compared to the control group. There was a non-significant trend for SULP and LEGO groups to improve more than the no-intervention group in communication and socialisation skills.

  12. The KINA neutronic module of the LEGO code for steady-state and transient PWR plant simulations

    International Nuclear Information System (INIS)

    Nicolopoulos, D.; Pollacchini, L.; Vimercati, G.; Spelta, S.

    1989-01-01

    The Automation Research Center (CRA) of ENEl has implemented some models for analyzing both incidental and operational transients in PWR power plants. For such models an axial neutron kinetics module characterized by high computational efficency with adequate results accuracy was called for. CISE has been entrusted with the task of implementing such a module named KINA and based on IQS (Improved Quasi Static) method, to be included in the library of LEGO modular code used by CRA to set up PWR power models. Moreover, The KINA module has been adapted to the neutron constants computing model developed by the EdF-SEPTEN, which has been using and improving the LEGO code for a long time in cooperation with ENEL-CRA. In this paper, after some remarks on the LEGO code, a general description of KINA neutronic module is given. The resylts of a preliminary validation activity of KINA for an EdF 1300 MWe PWR plant are also presented

  13. Modelamiento y programación de un juego de legos en un entorno de brealidad virtual

    OpenAIRE

    Arboleda, Freddy; Laica, Ricardo; Loor, Magdalena; García, Sixto

    2010-01-01

    This project seeks by the use of the techniques of Virtual Reality to create a virtual world of a traditional game of Lego blocks, in order to check the applicability of the concepts learned throughout the topic. The present abstract specifies the general ideas on the modeling, design and implementation of an application of Virtual Reality of Lego blocks. First, we focus in the creation of the 3D objects and scenes, which are going to constitute the virtual environment. Later, we are going t...

  14. The malleability of spatial ability under treatment of a FIRST LEGO League-based robotics unit

    Science.gov (United States)

    Coxon, Steven Vincent

    Spatial ability is important to science, technology, engineering, and math (STEM) success, but spatial talents are rarely developed in schools. Likewise, the gifted may become STEM innovators, but they are rarely provided with pedagogy appropriate to develop their abilities in schools. A stratified random sample of volunteer participants (n=75) ages 9-14 was drawn from 16 public school districts' gifted programs, including as many females (n=28) and children from groups traditionally underrepresented in gifted programs (n=18) as available. Participants were randomly divided into an experimental (n=38) and a control group (n=37) for an intervention study. All participants took the CogAT (form 6) Verbal Battery and the Project TALENT Spatial Ability Assessments. The experimental group participated in a simulation of the FIRST LEGO League (FLL) competition for 20 hours total over five consecutive days. All participants took the spatial measure another time. Experimental males evidenced significant and meaningful gains in measured spatial ability (Cohen's d = 0.87). Females did not evidence significant gains in measured spatial ability. This may be due to sampling error, gender differences in prior experience with LEGO, or differences in facets of spatial ability in the treatment or measurements. Further research studies with larger samples of females, other treatments and measurement tools, and longer treatment periods are recommended. The literature review revealed that FLL is beneficial for STEM engagement in both genders and its use in schools is recommended. The present study provides additional evidence for FLL's usefulness in increasing the number of individuals in the STEM pipeline. Keywords: spatial, gilled, talent, robotics, FIRST LEGO League, science

  15. Culture’s building blocks: Investigating cultural evolution in a LEGO construction task

    DEFF Research Database (Denmark)

    McGraw, John J.; Wallot, Sebastian; Mitkidis, Panagiotis

    2014-01-01

    to culture remains little more than a suggestive trope. Whereas the modern synthesis of evolutionary theory has provided an encompassing scientific framework for the selection and transmission of biological adaptations, a convincing theory of cultural evolution has yet to emerge. One of the greatest...... the ways people develop conventions in a series of LEGO construction tasks. The data revealed a surprising pattern in the selection of building bricks as well as features of car design across consecutive building sessions. Our findings support a novel methodology for studying the development...

  16. Examining Students' Proportional Reasoning Strategy Levels as Evidence of the Impact of an Integrated LEGO Robotics and Mathematics Learning Experience

    Science.gov (United States)

    Martínez Ortiz, Araceli

    2015-01-01

    The presented study used a problem-solving experience in engineering design with LEGO robotics materials as the real-world mathematics-learning context. The goals of the study were (a) to determine if a short but intensive extracurricular learning experience would lead to significant student learning of a particular academic topic and (b) to…

  17. A Simple, Small-Scale Lego Colorimeter with a Light-Emitting Diode (LED) Used as Detector

    Science.gov (United States)

    Asheim, Jonas; Kvittingen, Eivind V.; Kvittingen, Lise; Verley, Richard

    2014-01-01

    This article describes how to construct a simple, inexpensive, and robust colorimeter from a few Lego bricks, in which one light-emitting diode (LED) is used as a light source and a second LED as a light detector. The colorimeter is suited to various grades and curricula.

  18. How the LEGO Group Is Embarking on Architectural Path Constitution to Transform Its Information Infrastructure into a Digital Platform

    DEFF Research Database (Denmark)

    Törmer, Robert Lorenz

    2018-01-01

    Traditional companies are increasingly turning towards platform strategies to gain speed in the development of digital value propositions and prepare for the challenges arising from digitalization. This paper reports on the digitalization journey of the LEGO Group to elaborate how brick-and-mortar...

  19. The Effects of Integrating LEGO Robotics into a Mathematics Curriculum to Promote the Development of Proportional Reasoning

    Science.gov (United States)

    Casler-Failing, Shelli L.

    2017-01-01

    This mixed methods, action research case study sought to investigate the effects of incorporating LEGO robotics into a seventh grade mathematics curriculum focused on the development of proportional reasoning through the lens of Social Constructivist Theory. Quantitative data was collected via pre- and post-tests from the mathematics class of six…

  20. Highly Manufacturable Deep (Sub-Millimeter) Etching Enabled High Aspect Ratio Complex Geometry Lego-Like Silicon Electronics.

    Science.gov (United States)

    Ghoneim, Mohamed Tarek; Hussain, Muhammad Mustafa

    2017-04-01

    A highly manufacturable deep reactive ion etching based process involving a hybrid soft/hard mask process technology shows high aspect ratio complex geometry Lego-like silicon electronics formation enabling free-form (physically flexible, stretchable, and reconfigurable) electronic systems. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  1. The Effect on Pupils' Science Performance and Problem-Solving Ability through Lego: An Engineering Design-Based Modeling Approach

    Science.gov (United States)

    Li, Yanyan; Huang, Zhinan; Jiang, Menglu; Chang, Ting-Wen

    2016-01-01

    Incorporating scientific fundamentals via engineering through a design-based methodology has proven to be highly effective for STEM education. Engineering design can be instantiated for learning as they involve mental and physical stimulation and develop practical skills especially in solving problems. Lego bricks, as a set of toys based on design…

  2. High School Students' Views on the PBL Activities Supported via Flipped Classroom and LEGO Practices

    Science.gov (United States)

    Cukurbasi, Baris; Kiyici, Mubin

    2018-01-01

    The purpose of this study was to investigate the high school students' views on instructions based on Flipped Classroom Model (FC) and LEGO applications. The case study, which is one of the qualitative research methods, was used within the scope of the study, the duration of which was 7 weeks. In order to choose the research group of the study,…

  3. The Effect of LEGO Training on Pupils' School Performance in Mathematics, Problem Solving Ability and Attitude: Swedish Data

    Science.gov (United States)

    Hussain, Shakir; Lindh, Jorgen; Shukur, Ghazi

    2006-01-01

    The purpose of this study is to investigate the effect of one year of regular "LEGO" training on pupils' performances in schools. The underlying pedagogical perspective is the constructivist theory, where the main idea is that knowledge is constructed in the mind of the pupil by active learning. The investigation has been made in two…

  4. Highly Manufacturable Deep (Sub-Millimeter) Etching Enabled High Aspect Ratio Complex Geometry Lego-Like Silicon Electronics

    KAUST Repository

    Ghoneim, Mohamed T.

    2017-02-01

    A highly manufacturable deep reactive ion etching based process involving a hybrid soft/hard mask process technology shows high aspect ratio complex geometry Lego-like silicon electronics formation enabling free-form (physically flexible, stretchable, and reconfigurable) electronic systems.

  5. Culture's building blocks: investigating cultural evolution in a LEGO construction task.

    Science.gov (United States)

    McGraw, John J; Wallot, Sebastian; Mitkidis, Panagiotis; Roepstorff, Andreas

    2014-01-01

    ONE OF THE MOST ESSENTIAL BUT THEORETICALLY VEXING ISSUES REGARDING THE NOTION OF CULTURE IS THAT OF CULTURAL EVOLUTION AND TRANSMISSION: how a group's accumulated solutions to invariant challenges develop and persevere over time. But at the moment, the notion of applying evolutionary theory to culture remains little more than a suggestive trope. Whereas the modern synthesis of evolutionary theory has provided an encompassing scientific framework for the selection and transmission of biological adaptations, a convincing theory of cultural evolution has yet to emerge. One of the greatest challenges for theorists is identifying the appropriate time scales and units of analysis in order to reduce the intractably large and complex phenomenon of "culture" into its component "building blocks." In this paper, we present a model for scientifically investigating cultural processes by analyzing the ways people develop conventions in a series of LEGO construction tasks. The data revealed a surprising pattern in the selection of building bricks as well as features of car design across consecutive building sessions. Our findings support a novel methodology for studying the development and transmission of culture through the microcosm of interactive LEGO design and assembly.

  6. Culture’s building blocks: investigating cultural evolution in a LEGO construction task

    Science.gov (United States)

    McGraw, John J.; Wallot, Sebastian; Mitkidis, Panagiotis; Roepstorff, Andreas

    2014-01-01

    One of the most essential but theoretically vexing issues regarding the notion of culture is that of cultural evolution and transmission: how a group’s accumulated solutions to invariant challenges develop and persevere over time. But at the moment, the notion of applying evolutionary theory to culture remains little more than a suggestive trope. Whereas the modern synthesis of evolutionary theory has provided an encompassing scientific framework for the selection and transmission of biological adaptations, a convincing theory of cultural evolution has yet to emerge. One of the greatest challenges for theorists is identifying the appropriate time scales and units of analysis in order to reduce the intractably large and complex phenomenon of “culture” into its component “building blocks.” In this paper, we present a model for scientifically investigating cultural processes by analyzing the ways people develop conventions in a series of LEGO construction tasks. The data revealed a surprising pattern in the selection of building bricks as well as features of car design across consecutive building sessions. Our findings support a novel methodology for studying the development and transmission of culture through the microcosm of interactive LEGO design and assembly. PMID:25309482

  7. Towards Lego Snapping; Integration of Carbon Nanotubes and Few-Layer Graphene

    Science.gov (United States)

    Nasseri, Mohsen; Boland, Mathias; Farrokhi, M. Javad; Strachan, Douglas

    Integration of semiconducting, conducting, and insulating nanomaterials into precisely aligned complicated systems is one of the main challenges to the ultimate size scaling of electronic devices, which is a key goal in nanoscience and nanotechnology. This integration could be made more effective through controlled alignment of the crystallographic lattices of the nanoscale components. Of the vast number of materials of atomically-thin materials, two of the sp2 bonded carbon structures, graphene and carbon nanotubes, are ideal candidates for this type of application since they are built from the same backbone carbon lattice. Here we report carbon nanotube and graphene hybrid nanostructures fabricated through their catalytic synthesis and etching. The growth formations we have investigated through various high-resolution microscopy techniques provide evidence of lego-snapped interfaces between nanotubes and graphene into device-relevant orientations. We will finish with a discussion of the various size and energy regimes relevant to these lego-snapped interfaces and their implications on developing these integrated formations.

  8. 3D printed Lego®-like modular microfluidic devices based on capillary driving.

    Science.gov (United States)

    Nie, Jing; Gao, Qing; Qiu, Jing-Jiang; Sun, Miao; Liu, An; Shao, Lei; Fu, Jian-Zhong; Zhao, Peng; He, Yong

    2018-03-12

    The field of how to rapidly assemble microfluidics with modular components continuously attracts researchers' attention, however, extra efforts must be devoted to solving the problems of leaking and aligning between individual modules. This paper presents a novel type of modular microfluidic device, driven by capillary force. There is no necessity for a strict seal or special alignment, and its open structures make it easy to integrate various stents and reactants. The key rationale for this method is to print different functional modules with a low-cost three-dimensional (3D) printer, then fill the channels with capillary materials and assemble them with plugs like Lego ® bricks. This rapidly reconstructed modular microfluidic device consists of a variety of common functional modules and other personalized modules, each module having a unified standard interface for easy assembly. As it can be printed by a desktop 3D printer, the manufacturing process is simple and efficient, with controllable regulation of the flow channel scale. Through diverse combinations of different modules, a variety of different functions can be achieved, without duplicating the manufacturing process. A single module can also be taken out for testing and analysis. What's more, combined with basic circuit components, it can serve as a low-cost Lego ® -like modular microfluidic circuits. As a proof of concept, the modular microfluidic device has been successfully demonstrated and used for stent degradation and cell cultures, revealing the potential use of this method in both chemical and biological research.

  9. Culture’s building blocks: investigating cultural evolution in a LEGO construction task

    Directory of Open Access Journals (Sweden)

    John Joseph Mcgraw

    2014-09-01

    Full Text Available One of the most essential but theoretically vexing issues regarding the notion of culture is that of cultural evolution and transmission: how a group’s accumulated solutions to invariant challenges develop and persevere over time. But at the moment, the notion of applying evolutionary theory to culture remains little more than a suggestive trope. Whereas the modern synthesis of evolutionary theory has provided an encompassing scientific framework for the selection and transmission of biological adaptations, a convincing theory of cultural evolution has yet to emerge. One of the greatest challenges for theorists is identifying the appropriate time scales and units of analysis in order to reduce the intractably large and complex phenomenon of culture into its component building blocks. In this paper, we present a model for scientifically investigating cultural processes by analyzing the ways people develop conventions in a series of LEGO construction tasks. The data revealed a surprising pattern in the selection of building bricks as well as features of car design across consecutive building sessions. Our findings support a novel methodology for studying the development and transmission of culture through the microcosm of interactive LEGO design and assembly.

  10. Using Lego robots to estimate cognitive ability in children who have severe physical disabilities.

    Science.gov (United States)

    Cook, Albert M; Adams, Kim; Volden, Joanne; Harbottle, Norma; Harbottle, Cheryl

    2011-01-01

    To determine whether low-cost robots provide a means by which children with severe disabilities can demonstrate understanding of cognitive concepts. Ten children, ages 4 to 10, diagnosed with cerebral palsy and related motor conditions, participated. Participants had widely variable motor, cognitive and receptive language skills, but all were non-speaking. A Lego Invention 'roverbot' was used to carry out a range of functional tasks from single-switch replay of pre-stored movements to total control of the movement in two dimensions. The level of sophistication achieved on hierarchically arranged play tasks was used to estimate cognitive skills. The 10 children performed at one of the six hierarchically arranged levels from 'no interaction' through 'simple cause and effect' to 'development and execution of a plan'. Teacher interviews revealed that children were interested in the robot, enjoyed interacting with it and demonstrated changes in behaviour and social and language skills following interaction. Children with severe physical disabilities can control a Lego robot to perform un-structured play tasks. In some cases, they were able to display more sophisticated cognitive skills through manipulating the robot than in traditional standardised tests. Success with the robot could be a proxy measure for children who have cognitive abilities but cannot demonstrate them in standard testing.

  11. Protein Assembly and Building Blocks: Beyond the Limits of the LEGO Brick Metaphor.

    Science.gov (United States)

    Levy, Yaakov

    2017-09-26

    Proteins, like other biomolecules, have a modular and hierarchical structure. Various building blocks are used to construct proteins of high structural complexity and diverse functionality. In multidomain proteins, for example, domains are fused to each other in different combinations to achieve different functions. Although the LEGO brick metaphor is justified as a means of simplifying the complexity of three-dimensional protein structures, several fundamental properties (such as allostery or the induced-fit mechanism) make deviation from it necessary to respect the plasticity, softness, and cross-talk that are essential to protein function. In this work, we illustrate recently reported protein behavior in multidomain proteins that deviates from the LEGO brick analogy. While earlier studies showed that a protein domain is often unaffected by being fused to another domain or becomes more stable following the formation of a new interface between the tethered domains, destabilization due to tethering has been reported for several systems. We illustrate that tethering may sometimes result in a multidomain protein behaving as "less than the sum of its parts". We survey these cases for which structure additivity does not guarantee thermodynamic additivity. Protein destabilization due to fusion to other domains may be linked in some cases to biological function and should be taken into account when designing large assemblies.

  12. Integrated learning of mathematics, science and technology concepts through LEGO/Logo projects

    Science.gov (United States)

    Wu, Lina

    This dissertation examined integrated learning in the domains of mathematics, science and technology based on Piaget's constructivism, Papert's constructionism, and project-based approach to education. Ten fifth grade students were involved in a two-month long after school program where they designed and built their own computer-controlled LEGO/Logo projects that required the use of gears, ratios and motion concepts. The design of this study centered on three notions of integrated learning: (1) integration in terms of what educational materials/settings provide, (2) integration in terms of students' use of those materials, and (3) integration in the psychological sense. In terms of the first notion, the results generally showed that the LEGO/Logo environment supported the integrated learning of math, science and technology concepts. Regarding the second notion, the students all completed impressive projects of their own design. They successfully combined gears, motors, and LEGO parts together to create motion and writing control commands to manipulate the motion. But contrary to my initial expectations, their successful designs did not require numerical reasoning about ratios in designing effective gear systems. When they did reason about gear relationships, they worked with "qualitative" ratios, e.g., "a larger driver gear with a smaller driven gear increases the speed." In terms of the third notion of integrated learning, there was evidence in all four case study students of the psychological processes involved in linking mathematical, scientific, and/or technological concepts together to achieve new conceptual units. The students not only made connections between ideas and experiences, but also recognized decisive patterns and relationships in their project work. The students with stronger overall project performances showed more evidence of synthesis than the students with relatively weaker performances did. The findings support the conclusion that all three

  13. Collective Value Creation and Empowerment in an Online Brand Community: A Netnographic Study on LEGO Builders

    Directory of Open Access Journals (Sweden)

    Pekka Tuominen

    2012-06-01

    Full Text Available Online communities are becoming “places” of belonging, information, and emotional support that people cannot do without. These social groups have a real existence for their participants, and thus have consequential effects on many aspects of behaviour. This article examines collective value creation and empowerment in an online brand community. It presents the main features of an online brand community, the process of value co-creation, and motivators for participating in online brand communities. These key factors jointly characterize collective value creation and empowerment. This netnographic study focuses on an online brand community called BrickBuilders, which is a meeting place for LEGO builders in Finland. BrickBuilders’ members feel a sense of belonging, they share similar motivations, and they create value together.

  14. ESTUDIO Y MODELADO DE UN BRAZO ROBÓTICO LEGO DE TRES GRADOS DE LIBERTAD

    Directory of Open Access Journals (Sweden)

    JAIME ALBERTO GUZMÁN

    2011-12-01

    Full Text Available En este artículo se presenta el estudio y modelado de un brazo robótico lego de tres grados de libertad en asocio con sus respectivos modelos de su cinemática directa e inversa junto con una aproximación al análisis dinámico para la generación de trayectorias de este robot. Las ecuaciones que rigen el movimiento son deducidas de los modelos matemáticos propios a las cadenas cinemáticas y son implementadas en el lenguaje de programación Java y ejecutadas por el robot a través de la extensión Java -LeJOS.

  15. LEGO-NMR spectroscopy: a method to visualize individual subunits in large heteromeric complexes.

    Science.gov (United States)

    Mund, Markus; Overbeck, Jan H; Ullmann, Janina; Sprangers, Remco

    2013-10-18

    Seeing the big picture: Asymmetric macromolecular complexes that are NMR active in only a subset of their subunits can be prepared, thus decreasing NMR spectral complexity. For the hetero heptameric LSm1-7 and LSm2-8 rings NMR spectra of the individual subunits of the complete complex are obtained, showing a conserved RNA binding site. This LEGO-NMR technique makes large asymmetric complexes accessible to detailed NMR spectroscopic studies. © 2013 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of Creative Commons the Attribution Non-Commercial NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

  16. Manipulating waves with LEGO{sup ®} bricks: A versatile experimental platform for metamaterial architectures

    Energy Technology Data Exchange (ETDEWEB)

    Celli, Paolo, E-mail: pcelli@umn.edu; Gonella, Stefano, E-mail: sgonella@umn.edu [Department of Civil, Environmental, and Geo- Engineering, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

    2015-08-24

    In this letter, we discuss a versatile, fully reconfigurable experimental platform for the investigation of phononic phenomena in metamaterial architectures. The approach revolves around the use of 3D laser vibrometry to reconstruct global and local wavefield features in specimens obtained through simple arrangements of LEGO{sup ®} bricks on a thin baseplate. The agility by which it is possible to reconfigure the brick patterns into a nearly endless spectrum of topologies makes this an effective approach for rapid experimental proof of concept, as well as a powerful didactic tool, in the arena of phononic crystals and metamaterials engineering. We use our platform to provide a compelling visual illustration of important spatial wave manipulation effects (waveguiding and seismic isolation), and to elucidate fundamental dichotomies between Bragg-based and locally resonant bandgap mechanisms.

  17. Structural insight into RNA recognition motifs: versatile molecular Lego building blocks for biological systems.

    Science.gov (United States)

    Muto, Yutaka; Yokoyama, Shigeyuki

    2012-01-01

    'RNA recognition motifs (RRMs)' are common domain-folds composed of 80-90 amino-acid residues in eukaryotes, and have been identified in many cellular proteins. At first they were known as RNA binding domains. Through discoveries over the past 20 years, however, the RRMs have been shown to exhibit versatile molecular recognition activities and to behave as molecular Lego building blocks to construct biological systems. Novel RNA/protein recognition modes by RRMs are being identified, and more information about the molecular recognition by RRMs is becoming available. These RNA/protein recognition modes are strongly correlated with their biological significance. In this review, we would like to survey the recent progress on these versatile molecular recognition modules. Copyright © 2012 John Wiley & Sons, Ltd.

  18. Determining suitable lego-structures to estimate stability of larger peptide nanostructures using computational methods.

    Science.gov (United States)

    Beke, Tamás; Czajlik, András; Csizmadia, Imre G; Perczel, András

    2006-02-02

    Nanofibers, nanofilms and nanotubes constructed of one to four strands of oligo-alpha- and oligo-beta-peptides were obtained by using carefully selected building units. Lego-type approaches based on thermoneutral isodesmic reactions can be used to reconstruct the total energies of both linear and tubular periodic nanostructures with acceptable accuracy. Total energies of several different nanostructures were accurately determined with errors typically falling in the subchemical range. Thus, attention will be focused on the description of suitable isodesmic reactions that have enabled the determination of the total energy of polypeptides and therefore offer a very fast, efficient and accurate method to obtain energetic information on large and even very large nanosystems.

  19. Using FIRST LEGO League Robotics Competitions to Engage Middle School Students in Physics

    Science.gov (United States)

    Rosen, Jeffrey

    2009-11-01

    As the nation and world grapple with looming crises in sectors such as energy, health care and the environment, it is critical that we keep today's youth interested in careers in science, technology, engineering and math (STEM). Studies indicate that many students lose interest in the sciences by ages 10-13, when they are in grades 4-8 in the U.S. educational system. Many of the interventions to counteract this trend focus on boosting interest in STEM in secondary schools and universities. However the case can be made that the greater need is actually earlier in the education of the child. How can we work with this age group in an exciting way that will promote the study of science? Student robotics competitions might be one effective answer. Programs are currently being run around the country and the world that engage young people in the study of science through robotic competition. Many of these programs rely on mentors to guide the students through the process, which in the most effective programs includes the study of physic concepts through engineering design. During this presentation we will discuss the options for participating in programs that help the students and teachers better understand the science, specifically the physics, which underlies robotics. In particular, we will focus on the international program called FIRST LEGO League (FLL), in which students ages 9-14 are challenged every year to construct a LEGO robot that can navigate and complete a course of theme-related missions. The FLL program is currently operating in almost every state in the U.S. and relies on recruiting qualified mentors and judges who want to impact young people's interest in STEM. Physics professionals can make a tremendous difference in the lives of these eager middle school students.

  20. ACCURACY ANALYSIS OF A LOW-COST PLATFORM FOR POSITIONING AND NAVIGATION

    Directory of Open Access Journals (Sweden)

    S. Hofmann

    2012-07-01

    Full Text Available This paper presents an accuracy analysis of a platform based on low-cost components for landmark-based navigation intended for research and teaching purposes. The proposed platform includes a LEGO MINDSTORMS NXT 2.0 kit, an Android-based Smartphone as well as a compact laser scanner Hokuyo URG-04LX. The robot is used in a small indoor environment, where GNSS is not available. Therefore, a landmark map was produced in advance, with the landmark positions provided to the robot. All steps of procedure to set up the platform are shown. The main focus of this paper is the reachable positioning accuracy, which was analyzed in this type of scenario depending on the accuracy of the reference landmarks and the directional and distance measuring accuracy of the laser scanner. Several experiments were carried out, demonstrating the practically achievable positioning accuracy. To evaluate the accuracy, ground truth was acquired using a total station. These results are compared to the theoretically achievable accuracies and the laser scanner’s characteristics.

  1. Modelamiento y programación de un juego de legos en un entorno de realidad virtual

    OpenAIRE

    Arboleda, Freddy; Laica, Ricardo; Loor, Magdalena; García, Sixto

    2011-01-01

    This project seeks by the use of the techn Lego blocks, in order to check the applicability of the concepts learned throughout the topic specifies the general ideas on the model blocks. First, we focus in the creation of the 3D objects and scenes, which are going to constitute the virtual environment. Later, we are going to detail the different positioning and control algorithms created to help us in the precision and the logic en the movements of the virtu and disadvantages...

  2. Another brick in the whole: estrategias de adaptación, remediación y transmediación en LEGO Batman: La Película

    Directory of Open Access Journals (Sweden)

    Sergio ALBALADEJO-ORTEGA

    2018-01-01

    Full Text Available El estreno en 2014 de La Lego Película (The Lego Movie, Phil Lord y Chris Miller supuso un importante hito en la historia de la empresa danesa LEGO, erigiendo el filme como pieza clave de la estrategia transmediática que empezaba a tomar forma en el ámbito cinematográfico. Aquel filme, en el que el personaje de Batman gozaba de un especial protagonismo, ha dado paso a un particular spin-off que, bajo el título LEGO Batman: La Película (The LEGO Batman Movie, Chris McKay, 2017, repite algunas de las fórmulas puestas en práctica en La Lego Película e introduce otras nuevas de igual o mayor interés desde un punto de vista intertextual. Este artículo se aproxima al largometraje del superhéroe de DC Comics atendiendo a las particulares estrategias de adaptación, remediación y transmediación que lleva a cabo. A través del análisis de los componentes narrativos que constituyen la propuesta del filme, así como de su puesta en relación con los presentes en los textos impresos, audiovisuales y videolúdicos pertenecientes a la franquicia LEGO Batman, se estudian las distintas estrategias que posibilitan la interconexión entre ellos y moldean el ‘macrorrelato’ (Scolari, 2009 que, de manera paradigmática, toma forma en la narrativa transmediática resultante.

  3. Performing LEGO

    DEFF Research Database (Denmark)

    von Wallpach, Sylvia; Hemetsberger, Andrea; Espersen, Peter

    2016-01-01

    We study the interactive narratives that underpin the emergence of corporate brand identity in new venture SMEs. We apply a process perspective that considers the complex interactions between layers of identities and sense-making in and around the organisation in the stakeholder eco-system. We pr...

  4. LEGO Materials.

    Science.gov (United States)

    Talapin, Dmitri V

    2008-06-01

    Two papers in this issue report important developments in the field of inorganic nanomaterials. Chen and O'Brien discuss self-assembly of semiconductor nanocrystals into binary nanoparticle superlattices (BNSLs). They show that simple geometrical principles based on maximizing the packing density can determine BNSL symmetry in the absence of cohesive electrostatic interactions. This finding highlights the role of entropy as the driving force for ordering nanoparticles. The other paper, by Weller and co-workers, addresses an important problem related to device integration of nanoparticle assemblies. They employ the Langmuir-Blodgett technique to prepare long-range ordered monolayers of close-packed nanocrystals and transfer them to different substrates.

  5. Fictions industrielles et apprentissage du temps : les jeux LEGO Bionicles

    Directory of Open Access Journals (Sweden)

    Irène Langlet

    2011-06-01

    Full Text Available Il y a un paradoxe LEGO : venue tard aux nouveaux jouets médiatiques et numériques, la firme danoise a pourtant lancé l’un des phénomènes les plus exemplaires des années 2000 : la gamme Bionicle, qui mêle figurines, jeux de construction, fictions populaires multi-supports (imprimé, télévision, jeux vidéo, CD-Rom, cinéma, communautés de joueurs sur internet, univers partagé, et tous les produits non ludiques dérivés. Une description fine de la gamme Bionicle fait apparaître d’emblée, non seulement son adéquation étroite aux problématiques de porosité intermédiatique et d’exploitation de la fiction, mais son innovation majeure, étroitement liée à la nature des produits de la firme LEGO. Dans un processus de « médiatisation », la gamme accomplit, après la généralisation de séries thématiques favorisant l’imaginaire, le passage de LEGO à la narrativisation. On montrera en quoi l’introduction du narratif dans cette gamme a répondu à cet objectif-maître de l’industrie des biens de consommation en régime médiatique : consommer du média, c’est encore jouer au jeu-noyau. Mais on verra aussi en quoi ce cadre narratif peut suggérer des analyses qui vont au-delà de la théorie du marketing ou de la didactique du jouet, et qui ont trait aux usages contemporains de la fiction et à la psychologie du développement en matière de maîtrise de la temporalité.

  6. Lentiviral gene ontology (LeGO) vectors equipped with novel drug-selectable fluorescent proteins: new building blocks for cell marking and multi-gene analysis.

    Science.gov (United States)

    Weber, K; Mock, U; Petrowitz, B; Bartsch, U; Fehse, B

    2010-04-01

    Vector-encoded fluorescent proteins (FPs) facilitate unambiguous identification or sorting of gene-modified cells by fluorescence-activated cell sorting (FACS). Exploiting this feature, we have recently developed lentiviral gene ontology (LeGO) vectors (www.LentiGO-Vectors.de) for multi-gene analysis in different target cells. In this study, we extend the LeGO principle by introducing 10 different drug-selectable FPs created by fusing one of the five selection marker (protecting against blasticidin, hygromycin, neomycin, puromycin and zeocin) and one of the five FP genes (Cerulean, eGFP, Venus, dTomato and mCherry). All tested fusion proteins allowed both fluorescence-mediated detection and drug-mediated selection of LeGO-transduced cells. Newly generated codon-optimized hygromycin- and neomycin-resistance genes showed improved expression as compared with their ancestors. New LeGO constructs were produced at titers >10(6) per ml (for non-concentrated supernatants). We show efficient combinatorial marking and selection of various cells, including mesenchymal stem cells, simultaneously transduced with different LeGO constructs. Inclusion of the cytomegalovirus early enhancer/chicken beta-actin promoter into LeGO vectors facilitated robust transgene expression in and selection of neural stem cells and their differentiated progeny. We suppose that the new drug-selectable markers combining advantages of FACS and drug selection are well suited for numerous applications and vector systems. Their inclusion into LeGO vectors opens new possibilities for (stem) cell tracking and functional multi-gene analysis.

  7. Physicochemical, morphological, and rheological characterization of Xanthosoma robustum Lego-like starch.

    Science.gov (United States)

    Londoño-Restrepo, Sandra M; Rincón-Londoño, Natalia; Contreras-Padilla, Margarita; Acosta-Osorio, Andrés A; Bello-Pérez, Luis A; Lucas-Aguirre, Juan C; Quintero, Víctor D; Pineda-Gómez, Posidia; del Real-López, Alicia; Rodríguez-García, Mario E

    2014-04-01

    This work presents the physicochemical and pasting characterization of isolated mafafa starch and mafafa flour (Xanthosoma robustum). According to SEM images of mafafa starches in the tuber, these starches form Lego-like shaped structures with diameters between 8 and 35 μm conformed by several starch granules of wedge shape that range from 2 to 7 μm. The isolated mafafa starch is characterized by its low contents of protein, fat, and ash. The starch content in isolated starch was found to be 88.58% while the amylose content obtained was 35.43%. X-ray diffraction studies confirm that isolated starch is composed mainly by amylopectin. These results were confirmed by differential scanning calorimetry and thermo gravimetric analysis. This is the first report of the molecular parameters for mafafa starch: molar mass that ranged between 2×10(8) and 4×10(8) g/mol, size (Rg) value between 279 and 295 nm, and molecular density value between 9.2 and 9.7 g/(mol nm(3)). This study indicates that mafafa starch shows long chains of amylopectin this fact contributes to higher viscosity development and higher gel stability. The obtained gel phase is transparent in the UV-vis region. The viscosity, gel stability and optical properties suggest that there is potential for mafafa starch applications in the food industry. Copyright © 2014 Elsevier B.V. All rights reserved.

  8. The PP1 binding code: a molecular-lego strategy that governs specificity.

    Science.gov (United States)

    Heroes, Ewald; Lesage, Bart; Görnemann, Janina; Beullens, Monique; Van Meervelt, Luc; Bollen, Mathieu

    2013-01-01

    Ser/Thr protein phosphatase 1 (PP1) is a single-domain hub protein with nearly 200 validated interactors in vertebrates. PP1-interacting proteins (PIPs) are ubiquitously expressed but show an exceptional diversity in brain, testis and white blood cells. The binding of PIPs is mainly mediated by short motifs that dock to surface grooves of PP1. Although PIPs often contain variants of the same PP1 binding motifs, they differ in the number and combination of docking sites. This molecular-lego strategy for binding to PP1 creates holoenzymes with unique properties. The PP1 binding code can be described as specific, universal, degenerate, nonexclusive and dynamic. PIPs control associated PP1 by interference with substrate recruitment or access to the active site. In addition, some PIPs have a subcellular targeting domain that promotes dephosphorylation by increasing the local concentration of PP1. The diversity of the PP1 interactome and the properties of the PP1 binding code account for the exquisite specificity of PP1 in vivo. © 2012 The Authors Journal compilation © 2012 FEBS.

  9. The Spin Torque Lego - from spin torque nano-devices to advanced computing architectures

    Science.gov (United States)

    Grollier, Julie

    2013-03-01

    Spin transfer torque (STT), predicted in 1996, and first observed around 2000, brought spintronic devices to the realm of active elements. A whole class of new devices, based on the combined effects of STT for writing and Giant Magneto-Resistance or Tunnel Magneto-Resistance for reading has emerged. The second generation of MRAMs, based on spin torque writing : the STT-RAM, is under industrial development and should be out on the market in three years. But spin torque devices are not limited to binary memories. We will rapidly present how the spin torque effect also allows to implement non-linear nano-oscillators, spin-wave emitters, controlled stochastic devices and microwave nano-detectors. What is extremely interesting is that all these functionalities can be obtained using the same materials, the exact same stack, simply by changing the device geometry and its bias conditions. So these different devices can be seen as Lego bricks, each brick with its own functionality. During this talk, I will show how spin torque can be engineered to build new bricks, such as the Spintronic Memristor, an artificial magnetic nano-synapse. I will then give hints on how to assemble these bricks in order to build novel types of computing architectures, with a special focus on neuromorphic circuits. Financial support by the European Research Council Starting Grant NanoBrain (ERC 2010 Stg 259068) is acknowledged.

  10. User-friendly freehand ultrasound calibration using Lego bricks and automatic registration.

    Science.gov (United States)

    Xiao, Yiming; Yan, Charles Xiao Bo; Drouin, Simon; De Nigris, Dante; Kochanowska, Anna; Collins, D Louis

    2016-09-01

    As an inexpensive, noninvasive, and portable clinical imaging modality, ultrasound (US) has been widely employed in many interventional procedures for monitoring potential tissue deformation, surgical tool placement, and locating surgical targets. The application requires the spatial mapping between 2D US images and 3D coordinates of the patient. Although positions of the devices (i.e., ultrasound transducer) and the patient can be easily recorded by a motion tracking system, the spatial relationship between the US image and the tracker attached to the US transducer needs to be estimated through an US calibration procedure. Previously, various calibration techniques have been proposed, where a spatial transformation is computed to match the coordinates of corresponding features in a physical phantom and those seen in the US scans. However, most of these methods are difficult to use for novel users. We proposed an ultrasound calibration method by constructing a phantom from simple Lego bricks and applying an automated multi-slice 2D-3D registration scheme without volumetric reconstruction. The method was validated for its calibration accuracy and reproducibility. Our method yields a calibration accuracy of [Formula: see text] mm and a calibration reproducibility of 1.29 mm. We have proposed a robust, inexpensive, and easy-to-use ultrasound calibration method.

  11. La reivindicación del saber lego en la defensa de la salud pública: Erin Brockovich

    Directory of Open Access Journals (Sweden)

    Alfredo MENÉNDEZ-NAVARRO

    2016-09-01

    Full Text Available Basada en hechos reales, Erin Brockovich narra la singular labor de esta mujer sin formación legal y un complicado contexto familiar en la preparación y desenlace de una exitosa demanda contra la Pacific Gas and Electric Company por contaminación de aguas de consumo humano con cromo hexavalente en Hinkley (California, EE.UU.. La película permite acercarnos a las estrategias de ocultación de riesgos ambientales de las grandes corporaciones industriales así como reivindicar el valor del conocimiento lego y del empoderamiento de los ciudadanos en la defensa del derecho a la salud.

  12. Lego Serious Play: hacia la permeabilidad del pensamiento crítico

    Directory of Open Access Journals (Sweden)

    Miriam Peña-Zabala

    2018-01-01

    Full Text Available INTRODUCCIÓN. La presente investigación indaga sobre la importancia de relacionar la enseñanza-aprendizaje con el acto de reflexionar. La hipótesis parte de la creencia de que reflexionar favorece el desarrollo del pensamiento crítico en el alumnado, y así, la comprensión y asimilación de las prácticas educativas vinculadas al arte contemporáneo en la formación inicial de profesorado. MÉTODO. Una vez definidas las preguntas de investigación, se ha optado por el método Lego Serious Play (LSP para llevar a cabo una sesión en la que se dialoga en torno a prácticas artísticas desarrolladas en el aula. Este método analiza la idea del juego simbólico como constructor de conocimiento y, por tanto, como una posible herramienta canalizadora hacia el pensamiento reflexivo. RESULTADOS. Los relatos extraídos han permitido ver resultados significativos que posibilitan mediar entre las prácticas artísticas desarrolladas y experiencias de vida, demostrando el uso de LSP para dicho cometido. DISCUSIÓN. Se pone en valor la diversidad y versatilidad que ofrece el acto de reflexionar, lo cual supone una vía significativa hacia el pensamiento crítico. También se subraya la idea de rescatar el juego como una herramienta eficaz en la educación adulta.

  13. Improving collaborative play between children with autism spectrum disorders and their siblings : the effectiveness of a robot-mediated intervention based on lego (R) therapy

    NARCIS (Netherlands)

    Huskens, Bibi; Palmen, Annemiek; Van der Werff, Marije; Lourens, Tino; Barakova, Emilia

    2015-01-01

    The aim of the study was to investigate the effectiveness of a brief robot-mediated intervention based on Lego(A (R)) therapy on improving collaborative behaviors (i.e., interaction initiations, responses, and play together) between children with ASD and their siblings during play sessions, in a

  14. Improving Collaborative Play between Children with Autism Spectrum Disorders and Their Siblings: The Effectiveness of a Robot-Mediated Intervention Based on Lego® Therapy

    Science.gov (United States)

    Huskens, Bibi; Palmen, Annemiek; Van der Werff, Marije; Lourens, Tino; Barakova, Emilia

    2015-01-01

    The aim of the study was to investigate the effectiveness of a brief robot-mediated intervention based on Lego® therapy on improving collaborative behaviors (i.e., interaction initiations, responses, and play together) between children with ASD and their siblings during play sessions, in a therapeutic setting. A concurrent multiple baseline design…

  15. Investigation of Self-assembly Structure and Properties of a Novel Designed Lego-type Peptide with Double Amphiphilic Surfaces

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Liang [Sichuan University, Sichuan (China); Zhao, Xiao Jun [Massachusetts Institute of Technology, Cambridge (United States)

    2010-12-15

    A typically designed 'Peptide Lego' has two distinct surfaces: a hydrophilic side that contains the complete charge distribution and a hydrophobic side. In this article, we describe the fabrication of a unique lego-type peptide with the AEAEYAKAK sequence. The novel peptide with double amphiphilic surfaces is different from typical peptides due to special arrangement of the residues. The results of CD, FT-IR, AFM and DLS demonstrate that the peptide with the random coil characteristic was able to form stable nanostructures that were mediated by non-covalent interactions in an aqueous solution. The data further indicated that despite its different structure, the peptide was able to undergo self-assembly similar to a typical peptide. In addition, the use of hydrophobic pyrene as a model allowed the peptide to provide a new type of potential nanomaterial for drug delivery. These efforts collectively open up a new direction in the fabrication of nanomaterials that are more perfect and versatile.

  16. A model of Altio Lazio boiling water reactor using the LEGO code nuclear steam supply system simulation

    International Nuclear Information System (INIS)

    Garbossa, G.B.; Spelta, S.; Cori, R.; Mosca, R.; Cento, P.

    1989-01-01

    An extensive effort has been made at the Italian National Electricity Board (ENEL) to construct and validate a LEGO model capable of simulating the operational transients of the Alto Lazio Nuclear Station, a two-twin units site with BWR/6 class reactors, rated at 2894 MWt and with Mark III containment. The desired end-product of this effort is an overall plant model consisting of the Nuclear Steam Supply System model, described in this paper, and the Balance of Plant model, capable of simulating the transient response of Alto Lazio Station. The models utilize the in-house developed LEGO code, which is a modular package oriented to power plant modeling and suitable to perform transient analyses to assist during power plant design, control system design and operating procedure verification. The ability of the NSSS model to predict correctly the plant response is demonstrated through comparison with results calculated by the vendor, using REDY code, and by an in-house RETRAN-02 model

  17. Investigation of Self-assembly Structure and Properties of a Novel Designed Lego-type Peptide with Double Amphiphilic Surfaces

    International Nuclear Information System (INIS)

    Wang, Liang; Zhao, Xiao Jun

    2010-01-01

    A typically designed 'Peptide Lego' has two distinct surfaces: a hydrophilic side that contains the complete charge distribution and a hydrophobic side. In this article, we describe the fabrication of a unique lego-type peptide with the AEAEYAKAK sequence. The novel peptide with double amphiphilic surfaces is different from typical peptides due to special arrangement of the residues. The results of CD, FT-IR, AFM and DLS demonstrate that the peptide with the random coil characteristic was able to form stable nanostructures that were mediated by non-covalent interactions in an aqueous solution. The data further indicated that despite its different structure, the peptide was able to undergo self-assembly similar to a typical peptide. In addition, the use of hydrophobic pyrene as a model allowed the peptide to provide a new type of potential nanomaterial for drug delivery. These efforts collectively open up a new direction in the fabrication of nanomaterials that are more perfect and versatile

  18. Designing using Lego and Uno-Stacko: A Playful Architecture for an Integrated Kindergarten and Elementary School

    Science.gov (United States)

    Muthmainnah, K.; Aryanti, T.; Ardiansyah, A.

    2017-03-01

    The integrated kindergarten and elementary school is a public educational facility used for early age and elementary education. Designated for children at 4-12 years of age, the design should meet the standards and requirements, while considering children’s needs in their development phase. This paper discusses the design of an integrated kindergarten and elementary school using the playful theme. Design was explored using LEGO and UNO-STACKO to create spaces that accommodate material exploration for children. The design takes the play concept as a medium of child’s learning in order to improve their ability and awareness of the surrounding environment. The design translates the playful theme into imaginary dimension, constructive-deconstructive shapes, and glide circulations concept. The spatial pattern is applied by considering children’s behavior in the designated ages to trigger their creativity improvement. The design is expected to serve as a model of an integrated kindergarten and elementary school architecture.

  19. Memory and accurate processing brain rehabilitation for the elderly: LEGO robot and iPad case study.

    Science.gov (United States)

    Lopez-Samaniego, Leire; Garcia-Zapirain, Begonya; Mendez-Zorrilla, Amaia

    2014-01-01

    This paper presents the results of research that applies cognitive therapies associated with memory and mathematical problem-solving in elderly people. The exercises are programmed in an iPad and can be performed both from the Tablet and in an interactive format with a LEGO robot. The system has been tested with 2 men and 7 women over the age of 65 who have slight physical and cognitive impairment. Evaluation with the SUS resulted in a mean of 48.45 with a standard deviation of 5.82. The score of overall satisfaction was 84.37 with a standard deviation of 18.6. Interaction with the touch screen caused some usability problems due to the elderly people's visual difficulties and clicking accuracy. Future versions will include visualization with more color contrast and less use of the keyboard.

  20. Not Your Typical Simulation Workshop: Using LEGOs to Train Medical Students on the Practice of Effective Communication.

    Science.gov (United States)

    Papanagnou, Dimitrios; Lee, Hyunjoo; Rodriguez, Carlos; Zhang, Xiao Chi C; Rudner, Joshua

    2018-01-21

    As students in the health professions transition from the classroom into the clinical environment, they will be expected to effectively communicate with their team members and their patients. Effective communication skills are essential to their ability to effectively contribute to their clinical team and the patient care they deliver. The authors propose an interactive workshop that can support students' deliberate practice of communication skills. The authors designed a simulation workshop that affords students the opportunity to practice their communication and peer-to-peer coaching skills. Using LEGOs, a one-hour workshop was conducted with medical students. Students were divided into groups of two. Each student took on a different role: teacher or builder. Teachers were tasked with instructing builders on how to construct a pre-made LEGO structure, not allowing builders to look at the structure. A group debriefing followed to evaluate the activity and explore the themes that emerged. Twenty first-year medical students and 25 fourth-year medical students participated in this activity. Most groups were successful in reproducing the pre-made structure. Groups that pre-briefed before building were most successful. Unsuccessful groups did not define orientation or direction in mutually understood terms, resulting in the creation of an incorrect mirror image of the structure - a common phenomenon seen during the teaching of procedures in the clinical learning environment. The workshop was well received. Students made requests to have similar sessions throughout their training to better support the development of effective communication skills. The workshop can easily be applied to other specialties to assist with procedural skills instruction or in workshops focusing on effective communication.

  1. Not Your Typical Simulation Workshop: Using LEGOs to Train Medical Students on the Practice of Effective Communication

    Science.gov (United States)

    Lee, Hyunjoo; Rodriguez, Carlos; Zhang, Xiao Chi C; Rudner, Joshua

    2018-01-01

    As students in the health professions transition from the classroom into the clinical environment, they will be expected to effectively communicate with their team members and their patients. Effective communication skills are essential to their ability to effectively contribute to their clinical team and the patient care they deliver. The authors propose an interactive workshop that can support students’ deliberate practice of communication skills. The authors designed a simulation workshop that affords students the opportunity to practice their communication and peer-to-peer coaching skills. Using LEGOs, a one-hour workshop was conducted with medical students. Students were divided into groups of two. Each student took on a different role: teacher or builder. Teachers were tasked with instructing builders on how to construct a pre-made LEGO structure, not allowing builders to look at the structure. A group debriefing followed to evaluate the activity and explore the themes that emerged. Twenty first-year medical students and 25 fourth-year medical students participated in this activity. Most groups were successful in reproducing the pre-made structure. Groups that pre-briefed before building were most successful. Unsuccessful groups did not define orientation or direction in mutually understood terms, resulting in the creation of an incorrect mirror image of the structure – a common phenomenon seen during the teaching of procedures in the clinical learning environment. The workshop was well received. Students made requests to have similar sessions throughout their training to better support the development of effective communication skills. The workshop can easily be applied to other specialties to assist with procedural skills instruction or in workshops focusing on effective communication. PMID:29568715

  2. GyroBoy – a self-balancing robot programmed in JAVA with leJOS EV3

    DEFF Research Database (Denmark)

    Christensen, Bjørn Klint

    GyroBoy is a self-balancing robot created by LEGO as a demonstration of what you can build with the EV3 LEGO Mindstorms education kit. The kit includes building instructions as well as a control program for GyroBoy developed in LEGO´s so called block-programming language. In this article I will p...... will present a similar control program developed in Java using the leJOS EV3 class library.......GyroBoy is a self-balancing robot created by LEGO as a demonstration of what you can build with the EV3 LEGO Mindstorms education kit. The kit includes building instructions as well as a control program for GyroBoy developed in LEGO´s so called block-programming language. In this article I...

  3. μOrgano: A Lego®-Like Plug & Play System for Modular Multi-Organ-Chips.

    Directory of Open Access Journals (Sweden)

    Peter Loskill

    Full Text Available Human organ-on-a-chip systems for drug screening have evolved as feasible alternatives to animal models, which are unreliable, expensive, and at times erroneous. While chips featuring single organs can be of great use for both pharmaceutical testing and basic organ-level studies, the huge potential of the organ-on-a-chip technology is revealed by connecting multiple organs on one chip to create a single integrated system for sophisticated fundamental biological studies and devising therapies for disease. Furthermore, since most organ-on-a-chip systems require special protocols with organ-specific media for the differentiation and maturation of the tissues, multi-organ systems will need to be temporally customizable and flexible in terms of the time point of connection of the individual organ units. We present a customizable Lego®-like plug & play system, μOrgano, which enables initial individual culture of single organ-on-a-chip systems and subsequent connection to create integrated multi-organ microphysiological systems. As a proof of concept, the μOrgano system was used to connect multiple heart chips in series with excellent cell viability and spontaneously physiological beat rates.

  4. μOrgano: A Lego®-Like Plug & Play System for Modular Multi-Organ-Chips.

    Science.gov (United States)

    Loskill, Peter; Marcus, Sivan G; Mathur, Anurag; Reese, Willie Mae; Healy, Kevin E

    2015-01-01

    Human organ-on-a-chip systems for drug screening have evolved as feasible alternatives to animal models, which are unreliable, expensive, and at times erroneous. While chips featuring single organs can be of great use for both pharmaceutical testing and basic organ-level studies, the huge potential of the organ-on-a-chip technology is revealed by connecting multiple organs on one chip to create a single integrated system for sophisticated fundamental biological studies and devising therapies for disease. Furthermore, since most organ-on-a-chip systems require special protocols with organ-specific media for the differentiation and maturation of the tissues, multi-organ systems will need to be temporally customizable and flexible in terms of the time point of connection of the individual organ units. We present a customizable Lego®-like plug & play system, μOrgano, which enables initial individual culture of single organ-on-a-chip systems and subsequent connection to create integrated multi-organ microphysiological systems. As a proof of concept, the μOrgano system was used to connect multiple heart chips in series with excellent cell viability and spontaneously physiological beat rates.

  5. Building Teen Futures with Underwater Robotics

    Science.gov (United States)

    Wallace, Michael L.; Freitas, William M.

    2016-01-01

    Preparing young Americans with science and technology skills has been on the forefront of educational reform for several years, and Extension has responded. Robotics projects have become a natural fit for 4-H clubs, with members' experiences ranging from using Lego® Mindstorms® and other "purchase and assemble" robotics kits to building…

  6. Example of Using Narratives in Teaching Programming: Roles of Variables

    DEFF Research Database (Denmark)

    Timcenko, Olga

    2007-01-01

      Abstract. This paper describes a case study of using narratives to motivate non-technology inclined children, 11-15 years old, to learn programming, using LEGO Mindstorms robots and RoboLab graphical programming language. Case study was done during 2004/2005 and 2005/2006 school years, followin...

  7. Cover Feature: LEGO-Inspired Drug Design: Unveiling a Class of Benzo[d]thiazoles Containing a 3,4-Dihydroxyphenyl Moiety as Plasma Membrane H+-ATPase Inhibitors (ChemMedChem 1/2018)

    DEFF Research Database (Denmark)

    Thanh Tung, Truong; Dao, Trong Tuan; Grifell Junyent, Marta

    2018-01-01

    The Cover Feature shows a rational procedure for assembling privileged molecular fragments (like playing with LEGO bricks) to obtain hit structures. We have invented a novel procedure for targeting biological macromolecules possessing a binding site with a poorly known topography. We have coined ......, 2018 (DOI: 10.1002/cmdc.201700635)....

  8. Competition-motivated teamwork and narratives to motivate girls for engineering

    DEFF Research Database (Denmark)

    Friesel, Anna; Timcenko, Olga

    2011-01-01

    cooperation between Ballerup Community, Copenhagen University College of Engineering and Aalborg University in Copenhagen. We focus on girls' engagement in FIRST LEGO League competitions, in order to motivate them in the future to study engineering. LEGO Mindstorm robots and RoboLab graphical programming......This paper describes competition-motivated teamwork and narratives to motivate teenager girls, 11-17 years old, to learn programming and basics of control. FIRST LEGO League competitions have been held at the Copenhagen University College of Engineering for several years because of successful...

  9. Investigating the relationship between two home numeracy measures: A questionnaire and observations during Lego building and book reading.

    Science.gov (United States)

    Mutaf Yildiz, Belde; Sasanguie, Delphine; De Smedt, Bert; Reynvoet, Bert

    2018-06-01

    Home numeracy has been defined as the parent-child interactions that include experiences with numerical content in daily-life settings. Previous studies have commonly operationalized home numeracy either via questionnaires or via observational methods. These studies have shown that both types of measures are positively related to variability in children's mathematical skills. This study investigated whether these distinctive data collection methods index the same aspect of home numeracy. The frequencies of home numeracy activities and parents' opinions about their children's mathematics education were assessed via a questionnaire. The amount of home numeracy talk was observed via two semi-structured videotaped parent-child activity sessions (Lego building and book reading). Children's mathematical skills were examined with two calculation subtests. We observed that parents' reports and number of observed numeracy interactions were not related to each other. Interestingly, parents' reports of numeracy activities were positively related to children's calculation abilities, whereas the observed home numeracy talk was negatively related to children's calculation abilities. These results indicate that these two methods tap on different aspects of home numeracy. Statement of contribution What is already known on this subject? Home numeracy, that is, parent-child interactions that include experiences with numerical content, is supposed to have a positive impact on calculation or mathematical ability in general. Despite many positive results, some studies have failed to find such an association. Home numeracy has been assessed with questionnaires on the frequency of numerical experiences and observations of parent-child interactions; however, those two measures of home numeracy have never been compared directly. What does this study add? This study assessed home numeracy through questionnaires and observations in the 44 parent-child dyads and showed that home numeracy

  10. Introducir la fracción en el ámbito escolar a través de un material manipulativo como es el Lego

    OpenAIRE

    Sánchez Díaz, Michael

    2017-01-01

    Treball Final de Grau en Mestre o Mestra d'Educació Primària. Codi: MP1040. Curs acadèmic: 2016/2017 Con este trabajo de investigación se quiere proponer una nueva metodología a la hora de enseñar las fracciones en la asignatura de matemáticas en el aula de primaria. El principal objetivo a seguir es que, a través de un material manipulativo como es el lego, los niños sean capaces de aprender las nociones básicas sobre las fracciones haciendo y no escuchando. Para ello, se ha ido recogiend...

  11. Planetary LEGO, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Prior to human arrival to the Moon or Mars, a certain amount of infrastructure will be required in order to ensure success of the overall goals of the mission. Such...

  12. Linking LEGO and Algebra

    Science.gov (United States)

    Özgün-Koca, S. Asli; Edwards, Thomas G.; Chelst, Kenneth R.

    2015-01-01

    In mathematics, students should represent, model, and work with such real-world situations as those found in the physical world, the public policy realm, and society (CCSSI 2010). Additionally, students need to make decisions and be flexible enough to improve their decisions after analyzing realistic situations. The LEGO® Pets activity does just…

  13. O leigo e o suporte básico de vida El lego y el soporte básico de vida Laypeople and basic life support

    Directory of Open Access Journals (Sweden)

    Aline Maino Pergola

    2009-06-01

    Full Text Available A capacitação do leigo para o atendimento precoce em situações de emergência e instituição do suporte básico de vida (SBV é fundamental para salvar vidas e prevenir seqüelas. O objetivo foi identificar o conhecimento dos leigos sobre SBV. Utililizou-se entrevista estruturada em linguagem não-técnica. A amostra compreendeu 385 sujeitos, a maioria (57,1% do sexo feminino com ensino médio completo e superior incompleto (53,7%. Verificou-se apenas 9,9% conhecem a manobra de respiração boca-a-boca; 84,2% conhecem a técnica de compressão torácica externa (CTE, e destes, 79,9% sabem sua finalidade. Apenas 14,5% sabem posicionar a vítima para realizar a CTE; 82,4% referem uma freqüência menor que 60 CTE/minuto. Por não apresentarem adequada informação e fundamentação das etapas do SBV, os leigos podem prestar atendimento incorreto à vítima de emergência, acarretando prejuízos à reanimação.La capacitación del lego para la atención precoz en situaciones de emergencia e aplicación del soporte básico de vida (SBV es fundamental para salvar vidas y prevenir secuelas. El objetivo fue identificar el conocimiento de los legos sobre SBV. Se utililizó la entrevista estructurada en un lenguague no técnico. La muestra comprendió 385 sujetos, la mayoría (57,1% del sexo femenino con enseñanza media completa y superior incompleta (53,7%; Los que conocen la maniobra de respiración boca a boca son apenas 9,9%; 84,2% conocen la técnica de compresión toráxica externa (CTE y de estos, 79,9% saben su finalidad. Apenas 14,5% saben posicionar a la víctima para realizar la CTE, 82,4% refieren una frecuencia menor que 60 CTE/minuto. Por no presentar adecuada información y fundamentos de las etapas del SBV, los legos pueden prestar una atención incorrecta a la víctima de emergencia, ocasionando perjuicios en la reanimación.Training laypeople to give first aid in emergency situations and offer basic life support (BLS is crucial

  14. Morphological, structural, thermal, compositional, vibrational, and pasting characterization of white, yellow, and purple Arracacha Lego-like starches and flours (Arracacia xanthorrhiza).

    Science.gov (United States)

    Londoño-Restrepo, Sandra M; Rincón-Londoño, Natalia; Contreras-Padilla, Margarita; Millan-Malo, Beatriz M; Rodriguez-Garcia, Mario E

    2018-07-01

    This work is focused on the chemical, structural, morphological, thermal, IR vibrational, and pasting characterization of isolated white, yellow, and purple Arracacha starches from Colombia. Inductive couple plasma showed that these starches are rich in potassium. Scanning Electron Microscopy (SEM) images show that the starch granules are formed by ovoid fully filled Lego-like starch microparticles, the circular cross-section has a diameter between 9 and 15μm and mayor axis between 20 and 30μm. Each one of these ovoids is formed by irregular wedge-shaped 6 to 10 isolated starch granules with an average size between 4 and 12μm. The amylose content ranged between 31 and 36%. Arracacha starches exhibited high viscosity values (between 20.000 and 28.000cP), which could be influenced by the high content of potassium ions, due to the C-H~K Van Der Waals interaction that was identified by using IR spectroscopy. According to the X-ray diffraction analysis, the starch patterns exhibited broad diffracted peaks which could be associated with the existence of nano-crystals and lamellae; the Differential Scanning calorimetry (DSC) result showed starches with a low gelatinization temperature of about 60°C. Copyright © 2018 Elsevier B.V. All rights reserved.

  15. Prediction of folding preference of 10 kDa silk-like proteins using a Lego approach and ab initio calculations.

    Science.gov (United States)

    Pohl, Gábor; Beke, Tamás; Borbély, János; Perczel, András

    2006-11-15

    Because of their great flexibility and strength resistance, both spider silks and silkworm silks are of increasing scientific and commercial interest. Despite numerous spectroscopic and theoretical studies, several structural properties at the atomic level have yet to be identified. The present theoretical investigation focuses on these issues by studying three silk-like model peptides: (AG)(64), [(AG)(4)EG](16), and [(AG)(4)PEG](16), using a Lego-type approach to construct these polypeptides. On the basis of these examples it is shown that thermoneutral isodesmic reactions and ab initio calculations provide a capable method to investigate structural properties of repetitive polypeptides. The most probable overall fold schema of these molecules with respect to the type of embedded hairpin structures were determined at the ab initio level of theory (RHF/6-311++G(d,p)//RHF/3-21G). Further on, analysis is carried out on the possible hairpin and turn regions and on their effect on the global fold. In the case of the (AG)(64) model peptide, the optimal beta-sheet/turn ratio was also determined, which provided good support for experimental observations. In addition, lateral shearing of a hairpin "folding unit" was investigated at the quantum chemical level to explain the mechanical properties of spider silk. The unique mechanical characteristics of silk bio-compounds are now investigated at the atomic level.

  16. Modular Ligation Extension of Guide RNA Operons (LEGO) for Multiplexed dCas9 Regulation of Metabolic Pathways in Saccharomyces cerevisiae.

    Science.gov (United States)

    Deaner, Matthew; Holzman, Allison; Alper, Hal S

    2018-04-16

    Metabolic engineering typically utilizes a suboptimal step-wise gene target optimization approach to parse a highly connected and regulated cellular metabolism. While the endonuclease-null CRISPR/Cas system has enabled gene expression perturbations without genetic modification, it has been mostly limited to small sets of gene targets in eukaryotes due to inefficient methods to assemble and express large sgRNA operons. In this work, we develop a TEF1p-tRNA expression system and demonstrate that the use of tRNAs as splicing elements flanking sgRNAs provides higher efficiency than both Pol III and ribozyme-based expression across a variety of single sgRNA and multiplexed contexts. Next, we devise and validate a scheme to allow modular construction of tRNA-sgRNA (TST) operons using an iterative Type IIs digestion/ligation extension approach, termed CRISPR-Ligation Extension of sgRNA Operons (LEGO). This approach enables facile construction of large TST operons. We demonstrate this utility by constructing a metabolic rewiring prototype for 2,3-butanediol production in 2 distinct yeast strain backgrounds. These results demonstrate that our approach can act as a surrogate for traditional genetic modification on a much shorter design-cycle timescale. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  17. LEGO-Inspired Drug Design: Unveiling a Class of Benzo[d]thiazoles Containing a 3,4-Dihydroxyphenyl Moiety as Plasma Membrane H+ -ATPase Inhibitors.

    Science.gov (United States)

    Tung, Truong-Thanh; Dao, Trong T; Junyent, Marta G; Palmgren, Michael; Günther-Pomorski, Thomas; Fuglsang, Anja T; Christensen, Søren B; Nielsen, John

    2018-01-08

    The fungal plasma membrane H + -ATPase (Pma1p) is a potential target for the discovery of new antifungal agents. Surprisingly, no structure-activity relationship studies for small molecules targeting Pma1p have been reported. Herein, we disclose a LEGO-inspired fragment assembly strategy for the design, synthesis, and discovery of benzo[d]thiazoles containing a 3,4-dihydroxyphenyl moiety as potential Pma1p inhibitors. A series of 2-(benzo[d]thiazol-2-ylthio)-1-(3,4-dihydroxyphenyl)ethanones was found to inhibit Pma1p, with the most potent IC 50 value of 8 μm in an in vitro plasma membrane H + -ATPase assay. These compounds were also found to strongly inhibit the action of proton pumping when Pma1p was reconstituted into liposomes. 1-(3,4-Dihydroxyphenyl)-2-((6-(trifluoromethyl)benzo[d]thiazol-2-yl)thio)ethan-1-one (compound 38) showed inhibitory activities on the growth of Candida albicans and Saccharomyces cerevisiae, which could be correlated and substantiated with the ability to inhibit Pma1p in vitro. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  18. WaterBotics: Pooling Students to STEM

    Science.gov (United States)

    Stambaugh, Beverly

    2015-04-01

    The STEM workforce of the future is sitting in today's K-12 classrooms, attending summer camps, and participating in after-school programs. How do we attract more youth -- particularly those currently underrepresented in STEM fields such as girls and minorities -- to explore the marvels of engineering and science? How do we entice them to become active participants - not merely witnesses - in the creation of solutions for our global neighborhood's greatest challenges, from environmental cleanup, to safe and efficient energy production, to improvements in healthcare? The WaterBotics program is one vehicle that has demonstrated success in engaging young learners. This underwater robotics program is designed to provide hands-on experiences for middle and high school age youth to engineering design, information technology tools, and science concepts, and to increase awareness and interest in engineering and IT careers. Middle and high school participants demonstrate increased enjoyment in studying science and engineering and interest in STEM careers as a result of WaterBotics. Such results can be seen from a statewide initiative that reached more than 2,600 middle and high school students in New Jersey in 2006-09 where student learning of science concepts and programming increased (McGrath et al, 2009, 2008). These findings provide the impetus to expand the WaterBotics program nationally. The curriculum can be used either in traditional classroom settings or in after-school and summer-camp settings. This problem-based program requires teams of students to work together to design, build, test, and redesign underwater robots, or "bots" made of LEGO® and other components. Students use the NXT and LEGO Mindstorms® software to program their robots to maneuver in the water, thereby gaining valuable experience with computer programming, as well as 21st Century skills. Teams must complete a series of increasingly sophisticated challenges which culminates with a final

  19. Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information.

    Science.gov (United States)

    Strauss, Soeren; Woodgate, Philip J W; Sami, Saber A; Heinke, Dietmar

    2015-12-01

    We present an extension of a neurobiologically inspired robotics model, termed CoRLEGO (Choice reaching with a LEGO arm robot). CoRLEGO models experimental evidence from choice reaching tasks (CRT). In a CRT participants are asked to rapidly reach and touch an item presented on the screen. These experiments show that non-target items can divert the reaching movement away from the ideal trajectory to the target item. This is seen as evidence attentional selection of reaching targets can leak into the motor system. Using competitive target selection and topological representations of motor parameters (dynamic neural fields) CoRLEGO is able to mimic this leakage effect. Furthermore if the reaching target is determined by its colour oddity (i.e. a green square among red squares or vice versa), the reaching trajectories become straighter with repetitions of the target colour (colour streaks). This colour priming effect can also be modelled with CoRLEGO. The paper also presents an extension of CoRLEGO. This extension mimics findings that transcranial direct current stimulation (tDCS) over the motor cortex modulates the colour priming effect (Woodgate et al., 2015). The results with the new CoRLEGO suggest that feedback connections from the motor system to the brain's attentional system (parietal cortex) guide visual attention to extract movement-relevant information (i.e. colour) from visual stimuli. This paper adds to growing evidence that there is a close interaction between the motor system and the attention system. This evidence contradicts the traditional conceptualization of the motor system as the endpoint of a serial chain of processing stages. At the end of the paper we discuss CoRLEGO's predictions and also lessons for neurobiologically inspired robotics emerging from this work. Crown Copyright © 2015. Published by Elsevier Ltd. All rights reserved.

  20. Control de movimiento robótico con detección cognitiva y facial mediante Emotiv EEG

    OpenAIRE

    Monge Lay, Sebastián; Aracena Pizarro, Diego

    2015-01-01

    Este trabajo presenta el desarrollo de una interfaz cerebro-computador utilizando el dispositivo Emotiv EEG, en donde se realizan reconocimientos de gestos faciales y pensamientos cognitivos, los que serán traducidos en movimientos que serán ejecutados por un robot Lego Mindstorms, con la idea de verificar si realmente Emotiv realiza un buen reconocimiento y puede ser utilizado para el movimiento de dispositivos. El trabajo es motivado por otras investigaciones realizadas, en donde se aplicar...

  1. SPECIAL ROBOTS FOR ENERGETICS

    Directory of Open Access Journals (Sweden)

    Sit M.L.

    2014-04-01

    Full Text Available An overview of robots used in the power industry for diagnostics of power lines, cable lines, for the control, monitoring and maintenance of wind turbines, in nuclear energy, for optimum orientation of solar photovoltaic plants and solar panels for cleaning. Equations of statics and dynamics of robotic car which lifts along the vertical flexible rope are considered. It is presented the design which is made on the basis of "Lego Mindstorms" to solve the problem.

  2. Learning Basic Mechatronics through Helicopter Workshop

    OpenAIRE

    Adzly Anuar; Maryam Huda Ahmad Phesal; Azrul Abidin Zakaria; Goh Chin Hock; Sivadass Thiruchelvam; Dickson Neoh Tze How; Muhammad Fahmi Abdul Ghani; Khairul Salleh Mohamed Sahari

    2014-01-01

    In recent years, technologies related to mechatronics and robotics is available even to elementary level students. It is now common to see schools in Malaysia using Lego Mindstorm as a tool for active learning on mechatronics and robotics. A new yet interesting way of learning mechatronics and robotics is introduced by Dr. Dan Barry, a former astronaut and his son Andrew Barry during their visit to Malaysia. The kits used are based on a 4-channel RC helicopter, Arduino Uno microcontroller, IR...

  3. Investigating the impact of a LEGO(TM)-based, engineering-oriented curriculum compared to an inquiry-based curriculum on fifth graders' content learning of simple machines

    Science.gov (United States)

    Marulcu, Ismail

    This mixed method study examined the impact of a LEGO-based, engineering-oriented curriculum compared to an inquiry-based curriculum on fifth graders' content learning of simple machines. This study takes a social constructivist theoretical stance that science learning involves learning scientific concepts and their relations to each other. From this perspective, students are active participants, and they construct their conceptual understanding through the guidance of their teacher. With the goal of better understanding the use of engineering education materials in classrooms the National Academy of Engineering and National Research Council in the book "Engineering in K-12 Education" conducted an in-depth review of the potential benefits of including engineering in K--12 schools as (a) improved learning and achievement in science and mathematics, (b) increased awareness of engineering and the work of engineers, (c) understanding of and the ability to engage in engineering design, (d) interest in pursuing engineering as a career, and (e) increased technological literacy (Katehi, Pearson, & Feder, 2009). However, they also noted a lack of reliable data and rigorous research to support these assertions. Data sources included identical written tests and interviews, classroom observations and videos, teacher interviews, and classroom artifacts. To investigate the impact of the design-based simple machines curriculum compared to the scientific inquiry-based simple machines curriculum on student learning outcomes, I compared the control and the experimental groups' scores on the tests and interviews by using ANCOVA. To analyze and characterize the classroom observation videotapes, I used Jordan and Henderson's (1995) method and divide them into episodes. My analyses revealed that the design-based Design a People Mover: Simple Machines unit was, if not better, as successful as the inquiry-based FOSS Levers and Pulleys unit in terms of students' content learning. I also

  4. Uptake and early removals of Implanon NXT in South Africa ...

    African Journals Online (AJOL)

    coverage over the past two decades.[3,4]. In South Africa (SA), .... with dealing with implant side-effects, counselling and management, and removal. ..... social franchising: The experience of Marie Stopes International in Mali. Glob Health: Sci ...

  5. LEGO-like DNA Structures

    DEFF Research Database (Denmark)

    Gothelf, Kurt Vesterager

    2012-01-01

    -dimensional (3D) DNA structures by self-assembly of single-stranded DNA “bricks.” The method opens a new route to complex self-assembled (3D) nanostructures that may serve as addressable templates for placing guest molecules with high precision, with possible applications in biophysics, medicine...

  6. Product Platform Screening at LEGO

    DEFF Research Database (Denmark)

    Mortensen, Niels Henrik; Steen Jensen, Thomas; Nielsen, Ole Fiil

    2012-01-01

    Product platforms offer great benefits to companies developing new products in highly competitive markets. Literature describes how a single platform can be designed from a technical point of view, but rarely mentions how the process begins. How do companies identify possible platform candidates...... after a few changes had been applied to the initial process layout. This case study shows how companies must focus on a limited selection of simultaneous projects in order to keep focus. Primary stakeholders must be involved from the very beginning, and short presentations of the platform concepts...

  7. Designing for Children's Collective Music Making

    DEFF Research Database (Denmark)

    Grønbæk, Jens Emil; Jakobsen, Kasper; Petersen, Marianne Graves

    2016-01-01

    Hitmachine empowers children to make music through building physical, shared interactive instruments from Lego MindstormsTM and playing them to a beat. The design rationale for Hitmachine draws upon the collective interaction model, theories of proxemics and F-formations, as well as a framework...... for social interaction. Hitmachine was evaluated during a 4-day workshop where 150 children aged 3-13 engaged with the system. Based on lessons from this workshop we point to key issues to consider when designing for collective music making. This includes designing for multiple access points and spatial...

  8. Linux toys II 9 Cool New Projects for Home, Office, and Entertainment

    CERN Document Server

    Negus, Christopher

    2006-01-01

    Builds on the success of the original Linux Toys (0-7645-2508-5) and adds projects using different Linux distributionsAll-new toys in this edition include a car computer system with built-in entertainment and navigation features, bootable movies, a home surveillance monitor, a LEGO Mindstorms robot, and a weather mapping stationIntroduces small business opportunities with an Internet radio station and Internet caf ̌projectsCompanion Web site features specialized hardware drivers, software interfaces, music and game software, project descriptions, and discussion forumsIncludes a CD-ROM with scr

  9. Navegação autônoma de robôs

    Directory of Open Access Journals (Sweden)

    Sidnei Alves de Araújo

    2006-01-01

    Full Text Available Neste trabalho, é apresentado um sistema de navegação autônoma, baseado em mecanismos de visão computacional que descrevem o ambiente para que um robô, construído com o kit Lego Mindstorms, possa tomar decisões. A partir das informações recebidas sobre sua localização, a do alvo e a dos obstáculos, o robô deve definir o trajeto a percorrer para atingir o objetivo.

  10. Health education: a strategy of care for the lay caregiver Educación en salud: una estrategia de cuidado al cuidador lego Educação em saúde: uma estratégia de cuidado ao cuidador leigo

    Directory of Open Access Journals (Sweden)

    Luccas Melo de Souza

    2007-04-01

    Full Text Available This article aimed to reflect about the importance of the role nurses perform in strategies of health education to lay caregivers, who are important actors in the health/disease process. It is a thematic reflection, built through bibliographic review, which discusses the role of lay caregivers in different stages of the life cycle. Considering the participation of lay caregivers in the Brazilian reality, strategies have been sought to include them in the health care, given the little attention Public Policies have given to them. Therefore, the nurses as health educators, must offer support to the lay caregivers helping them to choose among available alternatives, while delivering care, to not harm their own health. Concluding, health education can be an alternative to offer attention to the lay caregivers, while the nurse has important role in the development of alternatives.Este artículo tiene por objetivo reflexionar acerca de la importancia de la intervención de enfermería a través de estrategias de educación en salud, para los cuidadores legos, actores fundamentales en el proceso salud/enfermedad. Se trata de una reflexión temática, construida por medio de la búsqueda bibliográfica, a través de la cual se discute el rol de los cuidadores en las diferentes etapas del ciclo vital. Tomando como base la actual participación de los cuidadores legos en el escenario brasileño, se buscan estrategias para incluirlos en la asistencia de salud teniendo en vista la poca relevancia que las Políticas Públicas les han demostrado. Así, el enfermero, como educador en salud, debe ofrecer subsidios a los cuidadores legos para que sean capaces de escoger entre las alternativas disponibles para el cuidado de los enfermos, de forma tal que esta función no perjudique la salud del paciente. Se concluye que la educación en salud puede ser una forma alternativa para ofrecer atención de salud a los cuidadores legos, siendo el rol del enfermero

  11. LEGO: A modular accelerator design code

    International Nuclear Information System (INIS)

    Cai, Y.; Donald, M.; Irwin, J.; Yan, Y.

    1997-08-01

    An object-oriented accelerator design code has been designed and implemented in a simple and modular fashion. It contains all major features of its predecessors: TRACY and DESPOT. All physics of single-particle dynamics is implemented based on the Hamiltonian in the local frame of the component. Components can be moved arbitrarily in the three dimensional space. Several symplectic integrators are used to approximate the integration of the Hamiltonian. A differential algebra class is introduced to extract a Taylor map up to arbitrary order. Analysis of optics is done in the same way both for the linear and nonlinear case. Currently, the code is used to design and simulate the lattices of the PEP-II. It will also be used for the commissioning

  12. LEGO : linear embedding via Green's operators

    NARCIS (Netherlands)

    Water, van de A.M.

    2007-01-01

    Reduction of lead time has long been an important target in product development. Owing to the advance of computer power product optimization has been moved from the production stage to the preceding design stage. In particular, the full electromagnetic behavior of the final product can now be

  13. Lego clocks: building a clock from parts.

    Science.gov (United States)

    Brunner, Michael; Simons, Mirre J P; Merrow, Martha

    2008-06-01

    A new finding opens up speculation that the molecular mechanism of circadian clocks in Synechococcus elongatus is composed of multiple oscillator systems (Kitayama and colleagues, this issue, pp. 1513-1521), as has been described in many eukaryotic clock model systems. However, an alternative intepretation is that the pacemaker mechanism-as previously suggested-lies primarily in the rate of ATP hydrolysis by the clock protein KaiC.

  14. Kindlustuspakett kui Lego torn / Liina Leiten

    Index Scriptorium Estoniae

    Leiten, Liina

    1999-01-01

    Koduse vara kindlustamise tingimused. Tabelid: 1999.a. 1. kvartali usaldusreiting varakindlustuse osas, valik koduse vara kindlustamise hinnapakkumisi. Kommenteerivad maaklerfirma In Bro & Partners kindlustusdirektor Jaak Rikson ja Kindlustusabi OÜ direktor Toivo Voit

  15. Low enthalpy geothermal for oil sands (LEGO)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    Geothermal energy is generated by the slow decay of radioactive materials within the Earth. Geothermal energy resources include the water from hot springs used for heating; the withdrawal of high temperature steam from deep wells; and the use of stable ground or water temperatures near the Earth's surface to heat or cool buildings or in industrial processes. Heat pumps are used to transfer heat or water from the ground into buildings in winter. This paper discussed low enthalpy geothermal options for oil sands processes in order to reduce the use of natural gas and emissions from greenhouse gases (GHGs). The study was also conducted to aid in the development of a portfolio of renewable energy options for the oil and gas sector. The study estimated the costs and benefits of operating a shallow geothermal borehole cluster for meeting a portion of process heat demands for the Nexen's Albian mine. The costs and benefits of operating thermo-chillers integrated with a shallow geothermal borehole cluster for waste heat mitigation were also evaluated. The study showed that geothermal designs can be used to meet a portion of oil sands process heat and cooling demands. Mining operators may reduce carbon emissions and energy costs for process heat demands by installing closed loop borehole heat exchangers. Geothermal heat storage capacity can also be used to increase the efficiency of thermal chillers. It was concluded that pilot plant studies would contribute to a better understanding of the technology. tabs., figs.

  16. Technisch lego met een Duplo-interface

    NARCIS (Netherlands)

    Pimentel, A.; Schipper, D.

    2008-01-01

    Daedalus is een ontwerpflow op systeemniveau waarmee techneuten snel kunnen experimenteren met verschillende multiprocessorarchitecturen tijdens de vroege stadia van het ontwerptraject. Het is het resultaat van tien jaar onderzoek en ontwikkeling binnen de Progress-projecten Artemis en Artemisia.

  17. LEGO firm devices for atomic industry

    International Nuclear Information System (INIS)

    Makarov, P.V.; Egunova, E.M.

    2007-01-01

    Analytical problems of atomic industry enterprises are considered. Possibilities of LECO firm devices for following analysis kinds: 1) ore materials under ore processing; 2) chemical composition analysis and properties of metals and oxides under implementation of production manufacturing for nuclear industry; 3) spectral analysis; 4) structure analysis and properties of metallic materials - are shown. All above-listed analysis methods are applying at quality control operation. Examples of LECO device application at different nuclear energy enterprises of Russia, Kazakhstan, and other CIS and Baltic countries are cited

  18. Got LEGO Bricks? Children with Spatial Strengths

    Science.gov (United States)

    Mann, Rebecca

    2013-01-01

    Individuals with spatial strengths have preferences for visual ideation, holistic reasoning, and innovation. With the emphasis on verbal skills, American schools rarely provide opportunities for children to excel in these areas. Standardized assessments used to judge achievement do not value reflective thinking and innovation; therefore, students…

  19. A Lego system for conditional inference

    NARCIS (Netherlands)

    Hothorn, T.; Hornik, K.; van de Wiel, M.A.; Zeileis, A.

    2006-01-01

    Conditioning on the observed data is an important and flexible design principle for statistical test procedures. Although generally applicable, permutation tests currently in use are limited to the treatment of special cases, such as contingency tables or K-sample problems. A new theoretical

  20. Gaps in monitoring systems for Implanon NXT services in South Africa

    African Journals Online (AJOL)

    signal weaknesses in monitoring systems in the family planning ... 2 Women's Health Research Unit, School of Public Health and Family Medicine, ..... HR: senior author, providing oversight and review. Funding. Funding was received from the ...

  1. The Evolution of NxtWave Leaders for 21st-Century Libraries

    Science.gov (United States)

    Howard, Jody K.

    2015-01-01

    In January 2012, a group of four school library professors attending the ALA Midwinter Meeting were having lunch and discussing various issues related to the school library field. These school library professors agreed that one challenge facing the profession is preparing future leaders. As current school library leaders retire, it is difficult to…

  2. User perspectives on Implanon NXT in South Africa: A survey of 12 ...

    African Journals Online (AJOL)

    in the media and among healthcare providers in SA around the performance of implant ..... 'I sometimes bleed and experience bad headache, but it disappear at times and it ..... gains. Media campaigns, including visual and social media and.

  3. Gaps in monitoring systems for Implanon NXT services in South Africa

    African Journals Online (AJOL)

    Staff often took the initiative to fill gaps in reporting systems. Current systems are unable to accurately monitor uptake or discontinuation, or identify aspects of services requiring strengthening. Lack of pharmacovigilance data is especially concerning. Deficiencies noted in these monitoring systems may be common to family ...

  4. User perspectives on Implanon NXT in South Africa: A survey of 12 ...

    African Journals Online (AJOL)

    interquartile range 6 - 12), and this was primarily as a result of sideeffects (90%), especially bleeding-pattern changes and headaches. Removals were most common among married and cohabiting women, often ascribed to the effects of bleeding on ...

  5. a digital lego a digital lego-based learning environment for fraction

    African Journals Online (AJOL)

    eobe

    new wave of research and the findings have been so promising. The use of ... because of hands-on practical experience. The ... everyday-life situations. ... Cognitive and developmental psychologists viewed learning .... connection to their current conceptual framework. ... behavioural learning theory (BLT) treats the mind as.

  6. International Conference Educational Robotics 2016

    CERN Document Server

    Moro, Michele; Menegatti, Emanuele

    2017-01-01

    This book includes papers presented at the International Conference “Educational Robotics 2016 (EDUROBOTICS)”, Athens, November 25, 2016. The papers build on constructivist and constructionist pedagogy and cover a variety of topics, including teacher education, design of educational robotics activities, didactical models, assessment methods, theater robotics, programming & making electronics with Snap4Arduino, the Duckietown project, robotics driven by tangible programming, Lego Mindstorms combined with App Inventor, the Orbital Education Platform, Anthropomorphic Robots and Human Meaning Makers in Education, and more. It provides researchers interested in educational robotics with the latest advances in the field with a focus on science, technology, engineering, arts and mathematics (STEAM) education. At the same time it offers teachers and educators from primary to secondary and tertiary education insights into how educational robotics can trigger the development of technological interest and 21st c...

  7. A Playful Programming Products Vs. Programming Concepts Matrix

    DEFF Research Database (Denmark)

    Allsopp, Benjamin Brink

    2017-01-01

    to computer program: playful programming. This research also describes a project to bring together different stakeholders (developers, educators, parents and researchers) with a common vocabulary for describing, developing, teaching with and comparing these playful programming products and develops a model......A number of Danish primary schools are involved in pilot studies where 1st to 9th grade students work with Scratch and Lego MindStorms in STEM subjects. These games may become part of the curriculum at these schools. Recent research identifies a category of games and toys that support learning...... to provide educators and researchers involved in pilot studies with an overview of which programming concepts various playful programming products exercise (a playful programming products vs. programming concepts matrix). We also add additional concept specializations and expand on the descriptions...

  8. Method of Computer-aided Instruction in Situation Control Systems

    Directory of Open Access Journals (Sweden)

    Anatoliy O. Kargin

    2013-01-01

    Full Text Available The article considers the problem of computer-aided instruction in context-chain motivated situation control system of the complex technical system behavior. The conceptual and formal models of situation control with practical instruction are considered. Acquisition of new behavior knowledge is presented as structural changes in system memory in the form of situational agent set. Model and method of computer-aided instruction represent formalization, based on the nondistinct theories by physiologists and cognitive psychologists.The formal instruction model describes situation and reaction formation and dependence on different parameters, effecting education, such as the reinforcement value, time between the stimulus, action and the reinforcement. The change of the contextual link between situational elements when using is formalized.The examples and results of computer instruction experiments of the robot device “LEGO MINDSTORMS NXT”, equipped with ultrasonic distance, touch, light sensors.

  9. Control of autonomous robot using neural networks

    Science.gov (United States)

    Barton, Adam; Volna, Eva

    2017-07-01

    The aim of the article is to design a method of control of an autonomous robot using artificial neural networks. The introductory part describes control issues from the perspective of autonomous robot navigation and the current mobile robots controlled by neural networks. The core of the article is the design of the controlling neural network, and generation and filtration of the training set using ART1 (Adaptive Resonance Theory). The outcome of the practical part is an assembled Lego Mindstorms EV3 robot solving the problem of avoiding obstacles in space. To verify models of an autonomous robot behavior, a set of experiments was created as well as evaluation criteria. The speed of each motor was adjusted by the controlling neural network with respect to the situation in which the robot was found.

  10. Applications of simple robots to encourage social receptiveness of adolescents with autism.

    Science.gov (United States)

    Costa, Sandra; Resende, Jorge; Soares, Filomena Oliveira; Ferreira, Manuel João; Santos, Cristina P; Moreira, Fátima

    2009-01-01

    This paper reports the preliminary research studies regarding the use of LEGO Mindstorms TM robots as a therapy for autistic young people. Most autistic people hardly communicate in a social environment, living in their own world. This is the first step in a broader project which aims to improve the autistic people social life and also their ability to communicate, using the robot as a social bridge between them and the surrounding environment/people. The target group is 17-19 years old having autism disorder and developmental disability. The trials consists of undemanding plays where the intervention of the autistic person is required, using simple inputs, such as voice commands, pressing a button or clapping hands. The presented work intends to evaluate the reaction of this particular target group to the introduction of a toy-like robot in their classroom daily life. The methodology applied, the detailed description as well as the analysis of the experiments are presented and discussed.

  11. Ciência da Computação

    Directory of Open Access Journals (Sweden)

    André Felipe Henriques Librantz

    2006-01-01

    Full Text Available Este trabalho apresenta um sistema de navegação autônoma de robôs construídos com kits Lego Mindstorms, para cálculo de trajetórias. Esse sistema pode ser utilizado como instrumento pedagógico multidisciplinar no curso de Ciência da Computação, uma vez que, para o seu desenvolvimento são necessários conhecimentos de algoritmos, linguagem de programação, lógica computacional, estrutura de dados, inteligência artificial (IA, redes de computadores, computação gráfica e robótica.

  12. Raspberry Pi programming day | 12 April

    CERN Multimedia

    William Bell

    2014-01-01

    CERN is hosting a Raspberry Pi programming day on 12 April 2014 (see here).   The event includes a hands-on workshop and a series of presentations of different projects with the Raspberry Pi. The presentations and workshop provide an ideal introduction for beginners and information for those with more advanced computer programming skills. Basic programming techniques will be discussed using Scratch, Python and C, through a set of worked examples and additional electronics. The electronics examples will include a LEGO NXT interface, other expansion boards and a variety of basic I/O components and sensors. This event is free, but it is necessary to sign up to be able to attend. If you would like to present a project or bring your Raspberry Pi project to discuss in the tutorial session, please also email raspberry.pi@cern.ch with the details of your presentation or project.

  13. Installation of Mechatronics Education Using the MindStorms for Dept. of Mechanical Engineering, O.N.C.T

    Directory of Open Access Journals (Sweden)

    Tatsushi Tokuyasu

    2009-09-01

    Full Text Available The author constructed an installation course of mechatronics and conducted on the students of department of mechanical engineering, Oita national college of technology. The course is composed of six sessions and is aiming to grow up the mechanical engineers who can adapt quickly to changes in industrial society. Then, the education programs of computer technology and information processing are more emphasized in this course. Certainly the specific subjects involved with mechatronics are constructed as a part of curriculum in the older grades, however there is some difficulties to make students of department of mechanical engineering to have interests in electronics and/or information science. Viewed in this light, it is better to begin mechatronics education with undergoing experiments like this course since they were in early grade.

  14. Installation of Mechatronics Education Using the MindStorms for Dept. of Mechanical Engineering, O.N.C.T

    Directory of Open Access Journals (Sweden)

    Tatsushi Tokuyasu

    2010-02-01

    Full Text Available The author constructed an installation course of mechatronics and conducted on the students of department of mechanical engineering, Oita national college of technology. The course is composed of six sessions and is aiming to grow up the mechanical engineers who can adapt quickly to changes in industrial society. Then, the education programs of computer technology and information processing are more emphasized in this course. Certainly the specific subjects involved with mechatronics are constructed as a part of curriculum in the older grades, however there is some difficulties to make students of department of mechanical engineering to have interests in electronics and/or information science. Viewed in this light, it is better to begin mechatronics education with undergoing experiments like this course since they were in early grade.

  15. Concepto lego de estrés en estudiantes universitarios

    OpenAIRE

    Revuelta Pérez, Francisco; Rodríguez Fernández, Luisa María; Atienza Martín, Francisco Javier; Losada Ruiz, Carmen

    2013-01-01

    El término estrés ha llegado a ser uno de los más utilizados en el contexto de la salud y la enfermedad. No obstante, no hay un consenso generalizado acerca de su definición por parte de los profesionales pertinentes, como tampoco por lo que respecta a los no expertos. Si es importante esta cuestión en relación con los primeros, no deja de serlo para los segundos. En general, las creencias, conceptos y teorías legas afectan a las percepciones de las personas y a las ...

  16. Sugar Lego: gene composition of bacterial carbohydrate metabolism genomic loci.

    Science.gov (United States)

    Kaznadzey, Anna; Shelyakin, Pavel; Gelfand, Mikhail S

    2017-11-25

    Bacterial carbohydrate metabolism is extremely diverse, since carbohydrates serve as a major energy source and are involved in a variety of cellular processes. Bacterial genes belonging to same metabolic pathway are often co-localized in the chromosome, but it is not a strict rule. Gene co-localization in linked to co-evolution and co-regulation. This study focuses on a large-scale analysis of bacterial genomic loci related to the carbohydrate metabolism. We demonstrate that only 53% of 148,000 studied genes from over six hundred bacterial genomes are co-localized in bacterial genomes with other carbohydrate metabolism genes, which points to a significant role of singleton genes. Co-localized genes form cassettes, ranging in size from two to fifteen genes. Two major factors influencing the cassette-forming tendency are gene function and bacterial phylogeny. We have obtained a comprehensive picture of co-localization preferences of genes for nineteen major carbohydrate metabolism functional classes, over two hundred gene orthologous clusters, and thirty bacterial classes, and characterized the cassette variety in size and content among different species, highlighting a significant role of short cassettes. The preference towards co-localization of carbohydrate metabolism genes varies between 40 and 76% for bacterial taxa. Analysis of frequently co-localized genes yielded forty-five significant pairwise links between genes belonging to different functional classes. The number of such links per class range from zero to eight, demonstrating varying preferences of respective genes towards a specific chromosomal neighborhood. Genes from eleven functional classes tend to co-localize with genes from the same class, indicating an important role of clustering of genes with similar functions. At that, in most cases such co-localization does not originate from local duplication events. Overall, we describe a complex web formed by evolutionary relationships of bacterial carbohydrate metabolism genes, manifested as co-localization patterns. This article was reviewed by Daria V. Dibrova (A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia), nominated by Armen Mulkidjanian (University of Osnabrück, Germany), Igor Rogozin (NCBI, NLM, NIH, USA) and Yuri Wolf (NCBI, NLM, NIH, USA).

  17. Virtual LEGOs: Incorporating Minecraft into the Art Education Curriculum

    Science.gov (United States)

    Overby, Alexandra; Jones, Brian L.

    2015-01-01

    What could video games bring to a K-12 visual arts curriculum? Overby and Jones were skeptical about incorporating gaming and virtual worlds into the classroom, but watching their own children engaging in the video game Minecraft changed their perception. As they started researching the game and how these kids were operating within the space, they…

  18. Toric Lego: A method for modular model building

    CERN Document Server

    Balasubramanian, Vijay; García-Etxebarria, Iñaki

    2010-01-01

    Within the context of local type IIB models arising from branes at toric Calabi-Yau singularities, we present a systematic way of joining any number of desired sectors into a consistent theory. The different sectors interact via massive messengers with masses controlled by tunable parameters. We apply this method to a toy model of the minimal supersymmetric standard model (MSSM) interacting via gauge mediation with a metastable supersymmetry breaking sector and an interacting dark matter sector. We discuss how a mirror procedure can be applied in the type IIA case, allowing us to join certain intersecting brane configurations through massive mediators.

  19. IMp: The customizable LEGO(®) Pinned Insect Manipulator.

    Science.gov (United States)

    Dupont, Steen; Price, Benjamin; Blagoderov, Vladimir

    2015-01-01

    We present a pinned insect manipulator (IMp) constructed of LEGO® building bricks with two axes of movement and two axes of rotation. In addition we present three variants of the IMp to emphasise the modular design, which facilitates resizing to meet the full range of pinned insect specimens, is fully customizable, collapsible, affordable and does not require specialist tools or knowledge to assemble.

  20. Non linear predictive control of a LEGO mobile robot

    Science.gov (United States)

    Merabti, H.; Bouchemal, B.; Belarbi, K.; Boucherma, D.; Amouri, A.

    2014-10-01

    Metaheuristics are general purpose heuristics which have shown a great potential for the solution of difficult optimization problems. In this work, we apply the meta heuristic, namely particle swarm optimization, PSO, for the solution of the optimization problem arising in NLMPC. This algorithm is easy to code and may be considered as alternatives for the more classical solution procedures. The PSO- NLMPC is applied to control a mobile robot for the tracking trajectory and obstacles avoidance. Experimental results show the strength of this approach.

  1. LEGO - A Class Library for Accelerator Design and Simulation

    International Nuclear Information System (INIS)

    Cai, Yunhai

    1998-01-01

    An object-oriented class library of accelerator design and simulation is designed and implemented in a simple and modular fashion. All physics of single-particle dynamics is implemented based on the Hamiltonian in the local frame of the component. Symplectic integrators are used to approximate the integration of the Hamiltonian. A differential algebra class is introduced to extract a Taylor map up to arbitrary order. Analysis of optics is done in the same way both for the linear and non-linear cases. Recently, Monte Carlo simulation of synchrotron radiation has been added into the library. The code is used to design and simulate the lattices of the PEP-II and SPEAR3. And it is also used for the commissioning of the PEP-II. Some examples of how to use the library will be given

  2. LIF-dependent signaling: new pieces in the Lego.

    Science.gov (United States)

    Mathieu, Marie-Emmanuelle; Saucourt, Claire; Mournetas, Virginie; Gauthereau, Xavier; Thézé, Nadine; Praloran, Vincent; Thiébaud, Pierre; Bœuf, Hélène

    2012-03-01

    LIF, a member of the IL6 family of cytokine, displays pleiotropic effects on various cell types and organs. Its critical role in stem cell models (e.g.: murine ES, human mesenchymal cells) and its essential non redundant function during the implantation process of embryos, in eutherian mammals, put this cytokine at the core of many studies aiming to understand its mechanisms of action, which could benefit to medical applications. In addition, its conservation upon evolution raised the challenging question concerning the function of LIF in species in which there is no implantation. We present the recent knowledge about the established and potential functions of LIF in different stem cell models, (embryonic, hematopoietic, mesenchymal, muscle, neural stem cells and iPSC). We will also discuss EVO-DEVO aspects of this multifaceted cytokine.

  3. Molecular lego for the assembly of biosensing layers.

    Science.gov (United States)

    Mano, N; Kuhn, A

    2005-03-31

    We propose a procedure to assemble monolayers of redox mediator, coenzyme, enzyme and stabilizing polyelectrolyte on an electrode surface using essentially electrostatic and complexing interactions. In a first step a monolayer of redox mediator, substituted nitrofluorenones, is adsorbed. In a second step, a layer of calcium cations is immobilized at the interface. It establishes a bridge between the redox mediator and the subsequently adsorbed coenzyme NAD(+). In the next step we use the intrinsic affinity of the NAD(+) monolayer for dehydrogenases to build up a multilayer composed of mediator/Ca(2+)/NAD(+)/dehydrogenase. The so obtained modified electrode can be used as a biosensor. Quartz crystal microbalance measurements allowed us to better understand the different parameters responsible for the adsorption. A more detailed investigation of the system made it possible to finally stabilize the assembly sufficiently by the adsorption of a polyelectrolyte layer in order to perform rotating disk electrode measurements with the whole supramolecular architecture on the electrode surface.

  4. Nucleic acids--genes, drugs, molecular lego and more.

    Science.gov (United States)

    Häner, Robert

    2010-01-01

    Chemically modified nucleic acids find widespread use as tools in research, as diagnostic reagents and even as pharmaceutical compounds. On the background of antisense research and development, the synthesis and evaluation of modified oligonucleotides was intensively pursued in the early to mid nineties in corporate research of former Ciba. Most of these efforts concentrated on the development of sugar and/or backbone-modified derivatives for pharmaceutical applications. Additionally, oligonucleotide metal conjugates were investigated with the goal to develop artificial ribonucleases. Since the turn of the millennium also the potential of non-nucleosidic and non-hydrogen bonding building blocks has increasingly been recognized. Such derivatives possess unique properties that may have an impact in the fields of materials and genetic research. In this brief account, we take a personal look back on some past as well as some recent results.

  5. Block copolymer libraries: modular versatility of the macromolecular Lego system.

    Science.gov (United States)

    Lohmeijer, Bas G G; Wouters, Daan; Yin, Zhihui; Schubert, Ulrich S

    2004-12-21

    The synthesis and characterization of a new 4 x 4 library of block copolymers based on polystyrene and poly(ethylene oxide) connected by an asymmetrical octahedral bis(terpyridine) ruthenium complex at the block junction are described, while initial studies on the thin film morphology of the components of the library are presented by the use of Atomic Force Microscopy, demonstrating the impact of a library approach to derive structure-property relationships.

  6. The Use of Lego Technologies in Elementary Teacher Preparation

    Science.gov (United States)

    Hadjiachilleos, Stella; Avraamidou, Lucy; Papastavrou, Stavros

    2013-01-01

    The need to reform science teacher preparation programs has been pointed out in research (Bryan and Abell in "J Res Sci Teach" 36:121-140, 1999; Bryan and Atwater in "Sci Educ" 8(6):821-839, 2002; Harrington and Hathaway in "J Teach Educ" 46(4):275-284, 1995). Science teachers are charged with the responsibility of…

  7. Logical Lego? Co-constructed perspectives on service design

    NARCIS (Netherlands)

    Heath, Claude P.; Coles-Kemp, Lizzie; Hall, Peter A.

    2014-01-01

    In the era of ‘digital by default’, internet-borne services reach out into spaces and places. One example of such a service is home-based micro-payments using Internet Protocol Television (IPTV) that depends on reliable information-sharing practices between user and service providers. Traditional

  8. The Use of Lego Technologies in Elementary Teacher Preparation

    NARCIS (Netherlands)

    Hadjiachilleos, Stella; Avraamidou, Lucy; Papastavrou, Stavros

    2013-01-01

    The need to reform science teacher preparation programs has been pointed out in research (Bryan and Abell in J Res Sci Teach 36:121-140, 1999; Bryan and Atwater in Sci Educ 8(6):821-839, 2002; Harrington and Hathaway in J Teach Educ 46(4):275-284, 1995). Science teachers are charged with the

  9. Platform Performance and Challenges - using Platforms in Lego Company

    DEFF Research Database (Denmark)

    Munk, Lone; Mortensen, Niels Henrik

    2009-01-01

    needs focus on the incentive of using the platform. This problem lacks attention in literature, as well as industry, where assessment criteria do not cover this aspect. Therefore, we recommend including user incentive in platform assessment criteria to these challenges. Concrete solution elements...... ensuring user incentive in platforms is an object for future research...

  10. Still in the LEGO (LEGOS) Room: Female Teachers Designing Curriculum around Girls' Popular Culture for the Coeducational Classroom in Australia

    Science.gov (United States)

    McKnight, Lucinda

    2015-01-01

    While the issue of boys' dominance of the curriculum has a long history, the article examines this phenomenon in a contemporary context, through an empirical study with female teachers designing English curriculum around girls' media in a coeducational secondary school in Victoria, Australia. In this space, teachers, and the researcher, produce…

  11. Teleoperación de un vehículo remoto en un medio de acceso inalámbrico mediante el uso de una interfaz háptica Remote vehicle teleoperation through a haptic interface

    Directory of Open Access Journals (Sweden)

    Arys Carrasquilla Batista

    2012-11-01

    Full Text Available La teleoperación permite que el ser humano pueda llevar a cabo ciertas tareas en lugares muy lejanos, de difícil acceso o de condiciones hostiles para la presencia de un operador. Con este proyecto se logró teleoperar un vehículo remoto por medio del protocolo de comunicación Bluetooth, para lo cual se adaptó una interfaz háptica (Novint Falcon. Desde la interfaz, el operador puede enviar la consigna de movimiento y, además, obtener sensaciones conforme a la información de los sensores incluidos al sistema. Como vehículo remoto se utilizó un Lego Mindstorms con capacidad de comunicación Bluetooth, al cual se incorporó un sensor de contacto y otro de ultrasonido con el fin de percibir en la interfaz háptica la retroalimentación de fuerzas. A una computadora estándar se le dio capacidad de comunicación Bluetooth por medio de un adaptador USB, desde la cual se ejecuta un programa creado en C++ para controlar las acciones de la interfaz háptica, enviar los comandos de movimiento al vehículo y recibir la información de los sensores, la cual reproduce sensaciones al operador.Teleoperation allows human beings to carry out certain tasks in places far away, inaccessible or with hostile conditions for the presence of an operator. In this project a remote vehicle is teleoperated using a bluetooth wireless connection, to accomplish this an haptic interface (Novint Falcon was used. The operator can give movement instructions to the vehicle and obtain sensations, according to the information received from the sensors connected to the system. The remote vehicle was a Lego Mindstorms with bluetooth communication capabilities, a touch sensor and ultrasonic sensor were included in order to perceive reflection of forces through the haptic interface. A USB adapter for bluetooth communication was added to a standard computer; a program in C++ is executed over this computer to control the haptic interface, send movement commands to the vehicle and

  12. An Exploratory Study of a Robotics Educational Platform on STEM Career Interests in Middle School Students

    Science.gov (United States)

    Hinton, Tracy Barger

    With the large expected growth in STEM-related careers in American industries, there are not enough graduates to fill these positions (United States Department of Labor, 2015). Increased efforts are being made to reform STEM education from early childhood to college level studies, mainly through increased efforts to incorporate new technologies and project-based learning activities (Hegedorn & Purnamasari, 2012). At the middle school level, a robotics educational platform can be a worthwhile activity that provides hands-on learning as students learn basic programming and engineering skills (Grubbs, 2013). Based on the popularity of LEGO toys, LEGO Education developed an engaging and effective way to learn about computer programming and basic engineering concepts (Welch & Huffman, 2011). LEGO MINDSTORMS offers a project-based learning environment that engages students in real-life, problem-solving challenges. The purpose of this qualitative study was to investigate the instructional use of a robotics educational curriculum on middle school students' attitudes toward and interests in STEM and their experiences with LEGO Robotics activities. Participants included 23 seventh grade students who were enrolled in a Career Cluster Technologies I class in a suburban middle school. Data for the study were collected from three focus group interviews, open-ended surveys, classroom observations, and the Career Cruising program. Findings revealed that the robotics activities led to an increased interest and higher self-efficacy in STEM tasks. If students continue to nurture and develop their STEM interests, it is possible that many of them may develop higher confidence and eventually set personal goals related to STEM classes and careers. While other studies have been conducted on similar topics, this qualitative research is unique because it contributed to the gap in research that investigates the impact of an in-class robotics curriculum on middle school students' attitudes

  13. SISTEMA DE TRANSPORTE Y EMBALAJE UTILIZANDO ROBÓTICA COOPERATIVA BASADA EN TEORÍA DE COLONIAS DE HORMIGAS MEDIANTE PLATAFORMA MINDSTORM DE LEGO®

    Directory of Open Access Journals (Sweden)

    Julian Rolando Camargo Lopez

    2015-09-01

    Full Text Available En este artículo se presenta una propuesta que sugiere el siguiente paso evolutivo de la automatización (y más aún de la ejecución manual: la robótica cooperativa, aquí se muestra un sistema enfocado a la selección y embalaje, etapa final de la mayoría de procesos industriales. El problema fue abordado con agentes robóticos con diferentes características que trabajan emulando la organización de una colonia de hormigas, haciendo de estas etapas un proceso eficiente, eficaz y de gran flexibilidad ante los cambios de la producción.

  14. An Adaptive Web-Based Support to e-Education in Robotics and Automation

    Science.gov (United States)

    di Giamberardino, Paolo; Temperini, Marco

    The paper presents the hardware and software architecture of a remote laboratory, with robotics and automation applications, devised to support e-teaching and e-learning activities, at an undergraduate level in computer engineering. The hardware is composed by modular structures, based on the Lego Mindstorms components: they are reasonably sophisticated in terms of functions, pretty easy to use, and sufficiently affordable in terms of cost. Moreover, being the robots intrinsically modular, wrt the number and distribution of sensors and actuators, they are easily and quickly reconfigurable. A web application makes the laboratory and its robots available via internet. The software framework allows the teacher to define, for the course under her/his responsibility, a learning path made of different and differently complex exercises, graduated in terms of the "difficulty" they require to meet and of the "competence" that the solver is supposed to have shown. The learning path of exercises is adapted to the individual learner's progressively growing competence: at any moment, only a subset of the exercises is available (depending on how close their levels of competence and difficulty are to those of the exercises already solved by the learner).

  15. PhoneSat: Ground Testing of a Phone-Based Prototype Bus

    Science.gov (United States)

    Felix, Carmen; Howard, Benjamin; Reyes, Matthew; Snarskiy, Fedor; Hickman, Ryan; Boshuizen, Christopher; Marshall, William

    2010-01-01

    Most of the key capabilities that are requisite of a satellite bus are housed in today's smart phones. PhoneSat refers to an initiative to build a ground-based prototype vehicle that could all the basic functionality of a satellite, including attitude control, using a smart Phone as its central hardware. All components used were also low cost Commercial off the Shelf (COTS). In summer 2009, an initial prototype was created using the LEGO Mindstorm toolkit demonstrating simple attitude control. Here we report on a follow up initiative to design, build and test a vehicle based on the Google s smart phone Nexus One. The report includes results from initial thermal-vacuum chamber tests and low altitude sub-orbital rocket flights which show that, at least for short durations, the Nexus One phone is able to withstand key aspects of the space environment without failure. We compare the sensor data from the Phone's accelerometers and magnetometers with that of an external microelectronic inertial measurement unit.

  16. Virtual Character Animation Based on Affordable Motion Capture and Reconfigurable Tangible Interfaces.

    Science.gov (United States)

    Lamberti, Fabrizio; Paravati, Gianluca; Gatteschi, Valentina; Cannavo, Alberto; Montuschi, Paolo

    2018-05-01

    Software for computer animation is generally characterized by a steep learning curve, due to the entanglement of both sophisticated techniques and interaction methods required to control 3D geometries. This paper proposes a tool designed to support computer animation production processes by leveraging the affordances offered by articulated tangible user interfaces and motion capture retargeting solutions. To this aim, orientations of an instrumented prop are recorded together with animator's motion in the 3D space and used to quickly pose characters in the virtual environment. High-level functionalities of the animation software are made accessible via a speech interface, thus letting the user control the animation pipeline via voice commands while focusing on his or her hands and body motion. The proposed solution exploits both off-the-shelf hardware components (like the Lego Mindstorms EV3 bricks and the Microsoft Kinect, used for building the tangible device and tracking animator's skeleton) and free open-source software (like the Blender animation tool), thus representing an interesting solution also for beginners approaching the world of digital animation for the first time. Experimental results in different usage scenarios show the benefits offered by the designed interaction strategy with respect to a mouse & keyboard-based interface both for expert and non-expert users.

  17. Caregiver and social assistant robot for rehabilitation and coaching for the elderly.

    Science.gov (United States)

    Pérez, P J; Garcia-Zapirain, B; Mendez-Zorrilla, A

    2015-01-01

    Socially assistive robotics (SAR) has been a major field of investigation during the last decade and, as it develops, the groups the technology can be applied to and all ways in which these can be assisted are rapidly increasing. The main objective is to design and develop a complete robotic agent, so that it performs physical and mental activities for elderly people to maintain their healthy life habits and, as a final result, improve their quality of life. LEGO Mindstorms NXT® robot's unique capacity for adaptability and engaging its users to develop coaching activities and assistive rehabilitation for the elderly. Such activities will aim to enhance healthy habits and provide training in physical and mental rehabilitation. The robot is attached to an iPod Touch that acts as its interface. The robot has been tested by a voluntary group of residents, also from that retirement home. Results in the variables of the questionnaire show scores above 4 points out of 5 for all the categories. Based on the tests, an easy to use Robot is prepared to deliver basic coaching for physical activities as proposed by the client, the staff of La Misericordia, who confirmed their satisfaction regarding this aspect.

  18. CuriousMind photographer: distract the robot from its initial task

    Directory of Open Access Journals (Sweden)

    Vincent Courboulay

    2015-02-01

    Full Text Available Mainly present in industry, robots begin to invade our every-day lives for very precise tasks. In order to reach a level where more general robots get involved in our lives, the robots' abilities to communicate and to react to unexpected situations must be improved. This paper introduces an attentive computational model for robots as attention can help both in reacting to unexpected situations and to help improving human-robot communication. We propose to enhance and implement an existing real time computational model. Intensity, color and orientation are usually used but we have added information related to depth and isolation. We have built a robotic system based on LEGO Mindstorm platform and the Kinect RGB-D sensor. This robot, called CuriousMind, is able to take a picture of the most interesting part of the scene and it can also be distracted from its first goal by novel situations mimicking in that way the human (and more precisely small children behaviour.

  19. A remote lab for experiments with a team of mobile robots.

    Science.gov (United States)

    Casini, Marco; Garulli, Andrea; Giannitrapani, Antonio; Vicino, Antonio

    2014-09-04

    In this paper, a remote lab for experimenting with a team of mobile robots is presented. Robots are built with the LEGO Mindstorms technology and user-defined control laws can be directly coded in the Matlab programming language and validated on the real system. The lab is versatile enough to be used for both teaching and research purposes. Students can easily go through a number of predefined mobile robotics experiences without having to worry about robot hardware or low-level programming languages. More advanced experiments can also be carried out by uploading custom controllers. The capability to have full control of the vehicles, together with the possibility to define arbitrarily complex environments through the definition of virtual obstacles, makes the proposed facility well suited to quickly test and compare different control laws in a real-world scenario. Moreover, the user can simulate the presence of different types of exteroceptive sensors on board of the robots or a specific communication architecture among the agents, so that decentralized control strategies and motion coordination algorithms can be easily implemented and tested. A number of possible applications and real experiments are presented in order to illustrate the main features of the proposed mobile robotics remote lab.

  20. Unibot, a Universal Agent Architecture for Robots

    Directory of Open Access Journals (Sweden)

    Saša Mladenović

    2017-01-01

    Full Text Available Today there are numerous robots in different applications domains despite the fact that they still have limitations in perception, actuation and decision process. Consequently, robots usually have limited autonomy, they are domain specific or have difficulty to adapt on new environments. Learning is the property that makes an agent intelligent and the crucial property that a robot should have to proliferate into the human society. Embedding the learning ability into the robot may simplify the development of the robot control mechanism. The motivation for this research is to develop the agent architecture of the universal robot – Unibot. In our approach the agent is the robot i.e. Unibot that acts in the physical world and is capable of learning. The Unibot conducts several simultaneous simulations of a problem of interest like path-finding. The novelty in our approach is the Multi-Agent Decision Support System which is developed and integrated into the Unibot agent architecture in order to execute simultaneous simulations. Furthermore, the Unibot calculates and evaluates between multiple solutions, decides which action should be performed and performs the action. The prototype of the Unibot agent architecture is described and evaluated in the experiment supported by the Lego Mindstorms robot and the NetLogo.

  1. A Remote Lab for Experiments with a Team of Mobile Robots

    Directory of Open Access Journals (Sweden)

    Marco Casini

    2014-09-01

    Full Text Available In this paper, a remote lab for experimenting with a team of mobile robots is presented. Robots are built with the LEGO Mindstorms technology and user-defined control laws can be directly coded in the Matlab programming language and validated on the real system. The lab is versatile enough to be used for both teaching and research purposes. Students can easily go through a number of predefined mobile robotics experiences without having to worry about robot hardware or low-level programming languages. More advanced experiments can also be carried out by uploading custom controllers. The capability to have full control of the vehicles, together with the possibility to define arbitrarily complex environments through the definition of virtual obstacles, makes the proposed facility well suited to quickly test and compare different control laws in a real-world scenario. Moreover, the user can simulate the presence of different types of exteroceptive sensors on board of the robots or a specific communication architecture among the agents, so that decentralized control strategies and motion coordination algorithms can be easily implemented and tested. A number of possible applications and real experiments are presented in order to illustrate the main features of the proposed mobile robotics remote lab.

  2. The influence of mechatronic learning systems on creative problem solving of pupils participating in technology class A pilot study

    Directory of Open Access Journals (Sweden)

    Kai-Christian Tönnsen

    2017-12-01

    Full Text Available Without being creative and finding solutions for various problems of life mankind wouldn’t be what it is today. Problem solving always has been a key ability for development, in the past, the present and it will also be a key for the future. Creative problem solving is one of the most important ways of technical thinking and acting. Therefore, the ability of finding solutions for problems and realizing them is a primary goal for technological education, especially if it is part of a comprehensive school education. It can be assumed that the available resources affect the possibilities and the result of problem solving processes. In terms of technology classes there are numerous resources that aim for the development of pupils’ creative problem solving skills like for instance mechatronic educational environments (MEEs. Unfortunately there is currently no test instrument for rating the influence of these MEEs on the outcome in terms of creative technical problem solving processes. Therefore, we designed a trial for such purpose and tested it in a pilot study: 33 students (9th grade, average age of 15.24 years of comprehensive schools were given a problem, which had to be solved using three different MEEs. Solutions found by the students have been documented and analyzed to identify system characteristics which enhance or inhibit the creative outcome.Key words: Creative problem solving, technology education, mechatronic educational environments, Festo MecLab, Fischertechnik RoboTX, Lego Mindstorms EV3

  3. Tema 1: Programmering af robotenheder i grundskolen

    Directory of Open Access Journals (Sweden)

    Stine Ejsing-Duun

    2016-01-01

    Full Text Available I denne artikel undersøger vi potentialerne for at lære matematik gennem programmering af robotter. Vi foreslår en model med tre indbyrdes afhængige læringspotentialer, som programmering fordrer. Det omfatter elevens evne til at; (1 tænke i algoritmer, (2 producere viden og artefakter gennem brug af matematik og (3 foretage abstraktion og indkapsling. Programmering er blevet en del af grundskolens læringsmål i flere lande. I Danmark er programmering et læringsmål i forenklede fælles mål for Fysik/Kemi og desuden en del af den nationale undervisningsvejledning for matematik. En analyse af potentialerne i at anvende programmering i forbindelse med disse fag er derfor væsentlig. I denne artikel fokuserer vi på samspillet mellem matematik og programmering gennem litteraturstudier og analyse af empiriske situationer fra undervisning i programmering af LEGO Mindstorms. Teoretisk anvendes den instrumentelle tilgang til teknologi i matematikundervisning. Analysen viser en række måder, hvorpå didaktisk opmærksomhed på epistemisk forhandling kan understøtte læring af matematik gennem programmering.

  4. TRANSPORTE COOPERATIVO DE OBJETOS CON UNA PLATAFORMA MÓVIL EN UN ENTORNO ESTRUCTURADO

    Directory of Open Access Journals (Sweden)

    Edwin Andres Beltran Gonzalez

    2012-08-01

    Full Text Available La robótica cooperativa busca diseñar sistemas compuestos de varios robots capaces de resolver problemas conjuntamente, de tal manera que dicha implementación puede llevar consigo distintos tipos de control (centralizado o distribuido, de esta manera una de las aplicaciones en esta línea de investigación es el transporte de objetos mediante distintas estrategias que van desde el empuje, la sujeción y arrastre de los objetos; tales trabajos se han presentado desde la década de los 90 hasta el día de hoy. El enfoque del presente artículo busca mostrar el desarrollo e implementación de una plataforma robótica cooperativa aplicada al transporte de objetos largos a través de un entorno estructurado utilizando las herramientas que provee el kit Lego Mindstorms RCX 2.0 y el grupo de investigación en robótica móvil autónoma ROMA.

  5. Evaluación de las técnicas de planificación de movimientos, Descomposición exacta trapezoidal y Descomposición adaptativa de celdas a través de mallas

    Directory of Open Access Journals (Sweden)

    Carlos Andrés Veléz Carvajal

    2013-02-01

    Full Text Available Compara el desempeño de dos técnicas de planificación de movimientos: la descomposición exacta trapezoidal y la descomposición adaptativa de celdas a través de mallas. Ambas técnicas se implementaron en robots móviles Lego Mindstorms, bajo el ambiente de desarrollo Java-LeJOS. Su evaluación se realizó en tres ambientes de prueba, asumiendo la geometría del robot de dos maneras: como un punto y como un círculo en el espacio. Esta evaluación permitió ver que la descomposición exacta presenta trayectorias más cortas que la adaptativa; que su desempeño es similar en cuanto al error generado en la localización real final del robot; y que ambas técnicas permiten hallar caminos con menor distancia cuando se considera la geometría del robot como un círculo, que cuando se considera como un punto, ya que se delimitan opciones de recorridos más cercanos a la realidad. 

  6. Planetary rover robotics experiment in education: carbonate rock collecting experiment of the Husar-5 rover

    Science.gov (United States)

    Szalay, Kristóf; Lang, Ágota; Horváth, Tamás; Prajczer, Péter; Bérczi, Szaniszló

    2013-04-01

    Introduction: The new experiment for the Husar-5 educational space probe rover consists of steps of the technology of procedure of finding carbonate speci-mens among the rocks on the field. 3 main steps were robotized: 1) identification of carbonate by acid test, 2) measuring the gases liberated by acid, and 3) magnetic test. Construction of the experiment: The basis of the robotic realization of the experiment is a romote-controlled rover which can move on the field. Onto this rover the mechanism of the experiments were built from Technics LEGO elements and we used LEGO-motors for making move these experiments. The operation was coordinated by an NXT-brick which was suitable to programming. Fort he acetic-test the drops should be passed to the selected area. Passing a drop to a locality: From the small holder of the acid using densified gas we pump some drop onto the selected rock. We promote this process by pumpig the atmospheric gas into another small gas-container, so we have another higher pressure gas there. This is pumped into the acid-holder. The effect of the reaction is observed by a wireless onboard camera In the next step we can identify the the liberated gas by the gas sensor. Using it we can confirm the liberation of the CO2 gas without outer observer. The third step is the controll of the paramagnetic properties.. In measuring this feature a LEGO-compass is our instrumentation. We use a electric current gener-ated magnet. During the measurements both the coil and the gas-sensor should be positioned to be near to the surface. This means, that a lowering and an uplifting machinery should be constructed. Summary: The sequence of the measurement is the following. 1) the camera - after giving panorama images - turns toward the soil surface, 2) the dropping onto the rock surface 3) at the same time the gas-sensor starts to move down above the rock 4) the compass sensor also moves down on the arm which holds both the gas-sensor and the compass-sensor 5

  7. Thinking outside the Blocks: Lego Day in a Pedagogy of Play

    Science.gov (United States)

    Krug, Kate

    2011-01-01

    Engaging students while providing them with the necessary linguistic and critical skills as a foundation for further exploration are the principle challenges for those of us who teach disciplinary introductory courses. My own response to this challenge has been to develop and implement what I refer to as the "pedagogy of play." Informed…

  8. The Impact of Lean Thinking on Workforce Motivation: A Success Factor at LEGO Manufacturing Ltd.

    OpenAIRE

    Oláh Judit; Szolnok Ádám; Nagy Gyula; Lengyel Péter; Popp József

    2017-01-01

    Several enterprises have tried to introduce the lean approach in order to enhance competitiveness. However, the only successful ones were the companies which understood that lean is not only about methods and tools, but the people using them: employees. The only way an enterprise can become a lean organisation is if all of its members deeply identify with the organisation’s principles, which is then manifested in all decisions and actions of the organisation. The aim of this study is to prese...

  9. Using LEGO Kits to Teach Higher Level Problem Solving Skills in System Dynamics: A Case Study

    Science.gov (United States)

    Wu, Yi; de Vries, Charlotte; Dunsworth, Qi

    2018-01-01

    System Dynamics is a required course offered to junior Mechanical Engineering students at Penn State Erie, the Behrend College. It addresses the intercoupling dynamics of a wide range of dynamic systems: including mechanical, electrical, fluid, hydraulic, electromechanical, and biomedical systems. This course is challenging for students due to the…

  10. Learning lean with lego: developing and evaluating the efficacy of a serious game

    Directory of Open Access Journals (Sweden)

    Fabiano Leal

    Full Text Available Abstract This study presents the use of a serious game developed to teach Lean philosophy. The structure of this game was built from theoretical elements and predefined learning events. Learning outcomes and student motivation were considered in the evaluation of the efficacy of the game. This serious game was applied to four groups of students with different profiles. The evaluation results were compared among these groups of students. It can be concluded that the serious game developed showed positive results in learning and motivation demonstrated by the students, regardless of the group analyzed. The main contributions to the literature presented in this article were the serious game (named 3L that was developed and the efficacy evaluation method, considering the learning and motivation demonstrated in different profiles of students.

  11. Naming a Lego world. The role of language in the acquisition of abstract concepts.

    Science.gov (United States)

    Granito, Carmen; Scorolli, Claudia; Borghi, Anna Maria

    2015-01-01

    While embodied approaches of cognition have proved to be successful in explaining concrete concepts and words, they have more difficulties in accounting for abstract concepts and words, and several proposals have been put forward. This work aims to test the Words As Tools proposal, according to which both abstract and concrete concepts are grounded in perception, action and emotional systems, but linguistic information is more important for abstract than for concrete concept representation, due to the different ways they are acquired: while for the acquisition of the latter linguistic information might play a role, for the acquisition of the former it is instead crucial. We investigated the acquisition of concrete and abstract concepts and words, and verified its impact on conceptual representation. In Experiment 1, participants explored and categorized novel concrete and abstract entities, and were taught a novel label for each category. Later they performed a categorical recognition task and an image-word matching task to verify a) whether and how the introduction of language changed the previously formed categories, b) whether language had a major weight for abstract than for concrete words representation, and c) whether this difference had consequences on bodily responses. The results confirm that, even though both concrete and abstract concepts are grounded, language facilitates the acquisition of the latter and plays a major role in their representation, resulting in faster responses with the mouth, typically associated with language production. Experiment 2 was a rating test aiming to verify whether the findings of Experiment 1 were simply due to heterogeneity, i.e. to the fact that the members of abstract categories were more heterogeneous than those of concrete categories. The results confirmed the effectiveness of our operationalization, showing that abstract concepts are more associated with the mouth and concrete ones with the hand, independently from heterogeneity.

  12. A Kinesthetic Activity Using LEGO Bricks and Buckets for Illustrating the Regulation of Blood Sugar

    Science.gov (United States)

    Urschler, Margaret; Meidl, Katherine; Browning, Samantha; Khan, Basima; Milanick, Mark

    2015-01-01

    This article describes how, when first faced with understanding blood sugar regulation, students often resort to simple memorization.Many students would like to get more involved with the conceptual framework but do not know how to start. The authors have developed an activity based on the Modell approach, a "view from the inside." This…

  13. Building the Foundations and Enterprise Capabilities for Digital Leadership: The Lego Experience

    DEFF Research Database (Denmark)

    El Sawy, Omar; Kræmmergaard, Pernille; Amsinck, Henrik

    2015-01-01

    Every enterprise in every industry sooner or later finds itself in the midst of a digitally-intensive business ecosystem with emerging digital platforms, a growing demand for increasingly digital products and services, and constantly connected customers, partners, and employees. For legacy brick-and-mortar...

  14. Designing, Developing, and Implementing a Course on LEGO Robotics for Technology Teacher Education

    Science.gov (United States)

    Chambers, Joan M.; Carbonaro, Mike

    2003-01-01

    Within a constructivist philosophy of learning, teachers, as students, are introduced to different perspectives of teaching with robotic technology while immersed in what Papert called a "constructionist" environment. Robotics allows students to creatively explore computer programming, mechanical design and construction, problem solving,…

  15. Glocalized Production - A Holistic Approach for Future Manufacturing at The LEGO Group

    DEFF Research Database (Denmark)

    Hadar, Ronen

    2014-01-01

    ) and Rapid Manufacturing (RM). RMS is a manufacturing system that is designed for rapid changes. It is based on core characteristics such as modularity, convertibility, customized flexibility, etc.. RM is the use of Additive Manufacturing (AM –commonly referred to as 3D printing) for the production......Global production is changing. Changes in production paradigms, global competition, manufacturing technologies, and new mega trends such as individualization, inflict immense challenges on global manufacturers. A new holistic approach for facing supply chain and production challenges is proposed...... facilities, the establishment of production close to main markets, and the creation of a global network of independent factories and supply chains with local manufacturing. Doing so will potentially increase responsiveness, cut transportation costs, reduce complexity, enable production to demand rather than...

  16. Evolution in Lego. A physical simulation of adaptation by natural selection

    DEFF Research Database (Denmark)

    Christensen-Dalsgaard, Jakob; Kanneworff, Morten

    2009-01-01

    En simulering af mekanismen bag naturlig udvælgelse ved at bruge legorger, organismer bygget af 6 legoklodser, og med en genetisk kode, der bestemmer hvordan klodserne er placeret og dermed formen på dyret. Legorgerne tildeles fitness efter, hvor langt de kan bevæge sig. Efter fem generationers s...

  17. Naming a Lego world. The role of language in the acquisition of abstract concepts.

    Directory of Open Access Journals (Sweden)

    Carmen Granito

    Full Text Available While embodied approaches of cognition have proved to be successful in explaining concrete concepts and words, they have more difficulties in accounting for abstract concepts and words, and several proposals have been put forward. This work aims to test the Words As Tools proposal, according to which both abstract and concrete concepts are grounded in perception, action and emotional systems, but linguistic information is more important for abstract than for concrete concept representation, due to the different ways they are acquired: while for the acquisition of the latter linguistic information might play a role, for the acquisition of the former it is instead crucial. We investigated the acquisition of concrete and abstract concepts and words, and verified its impact on conceptual representation. In Experiment 1, participants explored and categorized novel concrete and abstract entities, and were taught a novel label for each category. Later they performed a categorical recognition task and an image-word matching task to verify a whether and how the introduction of language changed the previously formed categories, b whether language had a major weight for abstract than for concrete words representation, and c whether this difference had consequences on bodily responses. The results confirm that, even though both concrete and abstract concepts are grounded, language facilitates the acquisition of the latter and plays a major role in their representation, resulting in faster responses with the mouth, typically associated with language production. Experiment 2 was a rating test aiming to verify whether the findings of Experiment 1 were simply due to heterogeneity, i.e. to the fact that the members of abstract categories were more heterogeneous than those of concrete categories. The results confirmed the effectiveness of our operationalization, showing that abstract concepts are more associated with the mouth and concrete ones with the hand, independently from heterogeneity.

  18. Flow Experience in Design Thinking and Practical Synergies with Lego Serious Play

    Science.gov (United States)

    Primus, Dirk J.; Sonnenburg, Stephan

    2018-01-01

    The flow experience can be an important precursor to high levels of creativity and innovation. Prior work has identified and conceptualized the key elements of the flow experience in cocreative activities as individual flow corridor, individual flow feeling, and group flow. Surprisingly, the flow experience is underrepresented in theory and…

  19. Titanium oxo-clusters: precursors for a Lego-like construction of nanostructured hybrid materials.

    Science.gov (United States)

    Rozes, Laurence; Sanchez, Clément

    2011-02-01

    Titanium oxo-clusters, well-defined monodispersed nano-objects, are appropriate nano-building blocks for the preparation of organic-inorganic materials by a bottom up approach. This critical review proposes to present the different structures of titanium oxo-clusters referenced in the literature and the different strategies followed to build up hybrid materials with these versatile building units. In particular, this critical review cites and reports on the most important papers in the literature, concentrating on recent developments in the field of synthesis, characterization, and the use of titanium oxo-clusters for the construction of advanced hybrid materials (137 references).

  20. Philosophy in the Music Classroom: Poststructuralist Lessons from "The Lego Movie"

    Science.gov (United States)

    Richerme, Lauren Kapalka

    2015-01-01

    This article introduces some of the practices in which various poststructuralist authors engage and suggests applications for music education. First, an explanation of how some poststructuralist authors embrace exclusions and how music educators might draw on such thinking and action is offered. Second, the article articulates various…

  1. Functional characterisation of an engineered multidomain human P450 2E1 by molecular Lego.

    Science.gov (United States)

    Fairhead, Michael; Giannini, Silva; Gillam, Elizabeth M J; Gilardi, Gianfranco

    2005-12-01

    The human cytochrome P450s constitute an important family of monooxygenase enzymes that carry out essential roles in the metabolism of endogenous compounds and foreign chemicals. We present here results of a fusion between a human P450 enzyme and a bacterial reductase that for the first time is shown does not require the addition of lipids or detergents to achieve wild-type-like activities. The fusion enzyme, P450 2E1-BMR, contains the N-terminally modified residues 22-493 of the human P450 2E1 fused at the C-terminus to residues 473-1049 of the P450 BM3 reductase (BMR). The P450 2E1-BMR enzyme is active, self-sufficient and presents the typical marker activities of the native human P450 2E1: the hydroxylation of p-nitrophenol (KM=1.84+/-0.09 mM and kcat of 2.98+/-0.04 nmol of p-nitrocatechol formed per minute per nanomole of P450) and chlorzoxazone (KM=0.65+/-0.08 mM and kcat of 0.95+/-0.10 nmol of 6-hydroxychlorzoxazone formed per minute per nanomole of P450). A 3D model of human P450 2E1 was generated to rationalise the functional data and to allow an analysis of the surface potentials. The distribution of charges on the model of P450 2E1 compared with that of the FMN domain of BMR provides the ground for the understanding of the interaction between the fused domains. The results point the way to successfully engineer a variety of catalytically self-sufficient human P450 enzymes for drug metabolism studies in solution.

  2. Der skal gang i robotterne - fra Lego til LocoKit

    DEFF Research Database (Denmark)

    Larsen, Jørgen Christian

    2014-01-01

    Hvis robotter i fremtiden skal udføre slidsomt og kedeligt arbejde i vores hverdag, bør robotterne have ben. Robotingeniøren Jørgen Christian Larsen fortæller her om sit arbejde med at udvikle et byggesæt, der skal gøre vejen til gående robotter kortere....

  3. Design of a tracked ultrasound calibration phantom made of LEGO bricks

    Science.gov (United States)

    Walsh, Ryan; Soehl, Marie; Rankin, Adam; Lasso, Andras; Fichtinger, Gabor

    2014-03-01

    PURPOSE: Spatial calibration of tracked ultrasound systems is commonly performed using precisely fabricated phantoms. Machining or 3D printing has relatively high cost and not easily available. Moreover, the possibilities for modifying the phantoms are very limited. Our goal was to find a method to construct a calibration phantom from affordable, widely available components, which can be built in short time, can be easily modified, and provides comparable accuracy to the existing solutions. METHODS: We designed an N-wire calibration phantom made of LEGO® bricks. To affirm the phantom's reproducibility and build time, ten builds were done by first-time users. The phantoms were used for a tracked ultrasound calibration by an experienced user. The success of each user's build was determined by the lowest root mean square (RMS) wire reprojection error of three calibrations. The accuracy and variance of calibrations were evaluated for the calibrations produced for various tracked ultrasound probes. The proposed model was compared to two of the currently available phantom models for both electromagnetic and optical tracking. RESULTS: The phantom was successfully built by all ten first-time users in an average time of 18.8 minutes. It cost approximately $10 CAD for the required LEGO® bricks and averaged a 0.69mm of error in the calibration reproducibility for ultrasound calibrations. It is one third the cost of similar 3D printed phantoms and takes much less time to build. The proposed phantom's image reprojections were 0.13mm more erroneous than those of the highest performing current phantom model The average standard deviation of multiple 3D image reprojections differed by 0.05mm between the phantoms CONCLUSION: It was found that the phantom could be built in less time, was one third the cost, compared to similar 3D printed models. The proposed phantom was found to be capable of producing equivalent calibrations to 3D printed phantoms.

  4. Increasing the lego of 2D electronics materials: silicene and germanene, graphene's new synthetic cousins

    Science.gov (United States)

    Le Lay, Guy; Salomon, Eric; Angot, Thierry; Eugenia Dávila, Maria

    2015-05-01

    The realization of the first Field Effect Transistors operating at room temperature, based on a single layer silicene channel, open up highly promising perspectives, e.g., typically, for applications in digital electronics. Here, we describe recent results on the growth, characterization and electronic properties of novel synthetic two-dimensional materials beyond graphene, namely silicene and germanene, its silicon and germanium counterparts.

  5. Engineering human cytochrome P450 enzymes into catalytically self-sufficient chimeras using molecular Lego.

    Science.gov (United States)

    Dodhia, Vikash Rajnikant; Fantuzzi, Andrea; Gilardi, Gianfranco

    2006-10-01

    The membrane-bound human cytochrome P450s have essential roles in the metabolism of endogenous compounds and drugs. Presented here are the results on the construction and characterization of three fusion proteins containing the N-terminally modified human cytochrome P450s CYP2C9, CY2C19 and CYP3A4 fused to the soluble NADPH-dependent oxidoreductase domain of CYP102A1 from Bacillus megaterium. The constructs, CYP2C9/BMR, CYP2C19/BMR and CYP3A4/BMR are well expressed in Escherichia coli as holo proteins. The chimeras can be purified in the absence of detergent and the purified enzymes are both active and correctly folded in the absence of detergent, as demonstrated by circular dichroism and functional studies. Additionally, in comparison with the parent P450 enzyme, these chimeras have greatly improved solubility properties. The chimeras are catalytically self-sufficient and present turnover rates similar to those reported for the native enzymes in reconstituted systems, unlike previously reported mammalian cytochrome P450 fusion proteins. Furthermore the specific activities of these chimeras are not dependent on the enzyme concentration present in the reaction buffer and they do not require the addition of accessory proteins, detergents or phospholipids to be fully active. The solubility, catalytic self-sufficiency and wild-type like activities of these chimeras would greatly simplify the studies of cytochrome P450 mediated drug metabolism in solution.

  6. Manipulating waves with LEGO bricks: A versatile experimental platform for metamaterial architectures

    Science.gov (United States)

    Celli, Paolo; Gonella, Stefano

    2015-08-01

    In this letter, we discuss a versatile, fully reconfigurable experimental platform for the investigation of phononic phenomena in metamaterial architectures. The approach revolves around the use of 3D laser vibrometry to reconstruct global and local wavefield features in specimens obtained through simple arrangements of LEGO® bricks on a thin baseplate. The agility by which it is possible to reconfigure the brick patterns into a nearly endless spectrum of topologies makes this an effective approach for rapid experimental proof of concept, as well as a powerful didactic tool, in the arena of phononic crystals and metamaterials engineering. We use our platform to provide a compelling visual illustration of important spatial wave manipulation effects (waveguiding and seismic isolation), and to elucidate fundamental dichotomies between Bragg-based and locally resonant bandgap mechanisms.

  7. T Cell LEGO: Identifying the Master Builders and What They Do.

    Science.gov (United States)

    Li, Jasmine; Turner, Stephen J

    2018-02-20

    Understanding how cell fate decisions are made during cellular differentiation and the mechanisms that drive them is a holy grail of cell biology. In this issue of Immunity, Hu et al. (2018) and Johnson et al. (2018) demonstrate that key transcriptional regulators and global changes in nuclear architecture underlie differentiation decisions during T cell development. Copyright © 2018 Elsevier Inc. All rights reserved.

  8. Biophysical functionality in polysaccharides: from Lego-blocks to nano-particles.

    Science.gov (United States)

    Cesàro, Attilio; Bellich, Barbara; Borgogna, Massimiliano

    2012-04-01

    The objective of the paper is to show the very important biophysical concepts that have been developed with polysaccharides. In particular, an attempt will be made to relate "a posteriori" the fundamental aspects, both experimental and theoretical, with some industrial applications of polysaccharide-based materials. The overview of chain conformational aspects includes relationships between topological features and local dynamics, exemplified for some naturally occurring carbohydrate polymers. Thus, by using simulation techniques and computational studies, the physicochemical properties of aqueous solutions of polysaccharides are interpreted. The relevance of conformational disorder-order transitions, chain aggregation, and phase separation to the underlying role of the ionic contribution to these processes is discussed. We stress the importance of combining information from analysis of experimental data with that from statistical-thermodynamic models for understanding the conformation, size, and functional stability of industrially important polysaccharides. The peculiar properties of polysaccharides in industrial applications are summarized for the particularly important example of nanoparticles production, a field of growing relevance and scientific interest.

  9. Cancer intravasation-on-a-chip : a LEGO house for tumors!

    NARCIS (Netherlands)

    Eslami Amirabadi, H.; Sahebali, Sh.; Miggiels, A.L.W.; Frimat, J.Ph.; Luttge, R.; den Toonder, J.

    2015-01-01

    The process where cancer cells leave the primary tumor and invade to the blood vessel. As shown in figure 1, intravasation is highly regulated by the micro-environment of the tumor. An important component of the micro-environment is the extracellular matrix (ECM) which can be seen as the building

  10. LEGO robot vehicle lesson plans for secondary education : a recruitment tool.

    Science.gov (United States)

    2012-08-01

    Robotics is a great way to get kids excited about science, technology, engineering, and math (STEM) topics. It is also highly effective in stimulation development of teamwork and self-confidence. This project provides transportation-related lesson pl...

  11. Molecular LEGO by domain-imprinting of cytochrome P450 BM3.

    Science.gov (United States)

    Jetzschmann, K J; Yarman, A; Rustam, L; Kielb, P; Urlacher, V B; Fischer, A; Weidinger, I M; Wollenberger, U; Scheller, F W

    2018-04-01

    Electrosynthesis of the MIP nano-film after binding of the separated domains or holo-cytochrome BM3 via an engineered anchor should result in domain-specific cavities in the polymer layer. Both the two domains and the holo P450 BM3 have been bound prior polymer deposition via a N-terminal engineered his6-anchor to the electrode surface. Each step of MIP preparation was characterized by cyclic voltammetry of the redox-marker ferricyanide. Rebinding after template removal was evaluated by quantifying the suppression of the diffusive permeability of the signal for ferricyanide and by the NADH-dependent reduction of cytochrome c by the reductase domain (BMR). The working hypothesis is verified by the discrimination of the two domains by the respective MIPs: The holoenzyme P450 BM3 was ca. 5.5 times more effectively recognized by the film imprinted with the oxidase domain (BMO) as compared to the BMR-MIP or the non-imprinted polymer (NIP). Obviously, a cavity is formed during the imprinting process around the his 6 -tag-anchored BMR which cannot accommodate the broader BMO or the P450 BM3. The affinity of the MIP towards P450 BM3 is comparable with that to the monomer in solution. The his 6 -tagged P450 BM3 binds (30 percent) stronger which shows the additive effect of the interaction with the MIP and the binding to the electrode. Copyright © 2018. Published by Elsevier B.V.

  12. Conceptualising Plagiarism: Using Lego to Construct Students' Understanding of Authorship and Citation

    Science.gov (United States)

    Buckley, Carina

    2015-01-01

    The transition from further to higher education is marked by a series of challenges for the new student, not least the requirement to learn the discourse of academic practice, and referencing as a part of that. By perceiving what it means to reference, students should also come to understand what it means to write, including the problematic areas…

  13. Tracked ultrasound calibration studies with a phantom made of LEGO bricks

    Science.gov (United States)

    Soehl, Marie; Walsh, Ryan; Rankin, Adam; Lasso, Andras; Fichtinger, Gabor

    2014-03-01

    In this study, spatial calibration of tracked ultrasound was compared by using a calibration phantom made of LEGO® bricks and two 3-D printed N-wire phantoms. METHODS: The accuracy and variance of calibrations were compared under a variety of operating conditions. Twenty trials were performed using an electromagnetic tracking device with a linear probe and three trials were performed using varied probes, varied tracking devices and the three aforementioned phantoms. The accuracy and variance of spatial calibrations found through the standard deviation and error of the 3-D image reprojection were used to compare the calibrations produced from the phantoms. RESULTS: This study found no significant difference between the measured variables of the calibrations. The average standard deviation of multiple 3-D image reprojections with the highest performing printed phantom and those from the phantom made of LEGO® bricks differed by 0.05 mm and the error of the reprojections differed by 0.13 mm. CONCLUSION: Given that the phantom made of LEGO® bricks is significantly less expensive, more readily available, and more easily modified than precision-machined N-wire phantoms, it prompts to be a viable calibration tool especially for quick laboratory research and proof of concept implementations of tracked ultrasound navigation.

  14. CNF1-like deamidase domains: common Lego bricks among cancer-promoting immunomodulatory bacterial virulence factors.

    Science.gov (United States)

    Ho, Mengfei; Mettouchi, Amel; Wilson, Brenda A; Lemichez, Emmanuel

    2018-05-03

    Alterations of the cellular proteome over time due to spontaneous or toxin-mediated enzymatic deamidation of glutamine (Gln) and asparagine (Asn) residues contribute to bacterial infection and might represent a source of aging-related diseases. Here, we put into perspective what is known about the mode of action of the CNF1 toxin from pathogenic E. coli, a paradigm of bacterial deamidases that activate Rho GTPases, to illustrate the importance of determining whether exposure to these factors are risk factors in the etiology age-related diseases, such as cancer. In particular, through in silico analysis of the distribution of the CNF1-like deamidase active site Gly-Cys-(Xaa)n-His sequence motif in bacterial genomes, we unveil the wide distribution of the super-family of CNF-like toxins and CNF-like deamidase domains among members of the enterobacteriacae and in association with a large variety of toxin delivery systems. We extent our discussion with recent findings concerning cellular systems that control activated Rac1 GTPase stability and provide protection against cancer. These findings point to the urgency for developing holistic approaches toward personalized medicine that include monitoring for asymptomatic carriage of pathogenic toxin-producing bacteria and that ultimately might lead to improved public health and increased lifespans.

  15. On the convergence of the eigencurrent expansion method applied to Linear Embedding via Green's Operators (LEGO)

    NARCIS (Netherlands)

    Lancellotti, V.; Hon, de B.P.; Tijhuis, A.G.

    2010-01-01

    The scattering from a large complex structure comprised of many objects may be efficiently tackled by embedding each object within a bounded domain (brick) which is described through a scattering operator. Upon electromagnetically combining the scattering operators we arrive at an equation which

  16. The LEGO toolbox: Supramolecular building blocks by nitroxide-mediated controlled radical polymerization

    NARCIS (Netherlands)

    Lohmeijer, B.G.G.; Schubert, U.S.

    2005-01-01

    A terpyridine-functionalized alkoxyamine unimolecular initiator was used for the nitroxide-mediated controlled living radical polymerization of n-butylacrylate, N,N-dimethylacrylamide, 4-vinylpyridine, 2-vinylpyridine, and isoprene. For the former three monomers, the kinetics were studied. All

  17. LEGO plot for simultaneous application of multiple quality requirements during trueness verification of quantitative laboratory tests.

    Science.gov (United States)

    Park, Hae-il; Chae, Hyojin; Kim, Myungshin; Lee, Jehoon; Kim, Yonggoo

    2014-03-01

    We developed a two-dimensional plot for viewing trueness that takes into account potential shift and variable quality requirements to verify trueness using certified reference material (CRM). Glucose, total cholesterol (TC), and creatinine levels were determined by two kinds of assay in two levels of a CRM. Available quality requirements were collected, codified, and sorted in an ascending order in the plot's header row. Centering on the mean of measured values from CRM, the "mean ± US CLIA '88 allowable total error" was located in the header of the leftmost and rightmost columns. Twenty points were created in intervening columns as potential shifts. Uncertainties were calculated according to regression between certified values and uncertainties of CRM, and positioned in the corresponding columns. Cells were assigned different colors where column and row intersected based on comparison of the 95% confidence interval of the percentage bias with each quality requirement. A glucose assay failed to meet the highest quality criteria, for which shift of +0.13-0.14 mmol/l was required. A TC assay met the quality requirement and a shift of ±0.03 mmol/l was tolerable. A creatinine assay also met the quality requirement but any shift was not tolerable. The plot provides a systematic view of the trueness of quantitative laboratory tests. © 2014 Wiley Periodicals, Inc.

  18. The Malleability of Spatial Ability under Treatment of a FIRST LEGO League-Based Robotics Unit

    Science.gov (United States)

    Coxon, Steven Vincent

    2012-01-01

    Spatial ability is important to science, technology, engineering, and math (STEM) success, but spatial talents are rarely developed in schools. Likewise, the gifted may become STEM innovators, but they are rarely provided with pedagogy appropriate to develop their abilities in schools. A stratified random sample of volunteer participants (n = 75)…

  19. The Malleability of Spatial Ability under Treatment of a FIRST LEGO League-Based Robotics Simulation

    Science.gov (United States)

    Coxon, Steve V.

    2012-01-01

    A stratified random sample of volunteer participants (N = 75) aged 9 to 14 was drawn from 16 public school districts' gifted programs, including as many females (n = 28) and children from groups traditionally underrepresented in gifted programs (n = 18) as available. Participants were randomly divided into an experimental (n = 38) and a control…

  20. Lego Serious Play as a participatory research method to involve children in action research projects

    DEFF Research Database (Denmark)

    Nunez, Heilyn Camacho

    2018-01-01

    as the materialization of students’ tacit knowledge, experience, and feelings. Furthermore, LSP makes use of visual representation, imagination, creativity, and two-way communication to embrace the voice of children. This approach allows participants to assume ownership of the process, to construct a joint narrative...

  1. El video(arte o el grado Lego de la imagen

    Directory of Open Access Journals (Sweden)

    Sergio Roncallo

    2005-01-01

    Full Text Available Este artículo pretende acercarse al videoarte y repensarlo como una forma expresiva en la que la imagen recupera un estatus ontológico que permanecía eclipsado por la sombra del platonismo. Se intenta, además, buscar algunas raíces del videoarte, explicitar sus relaciones con las vanguardias, la fotografía, el cine y la televisión. Asimismo, el texto intenta poner sobre la mesa algunas reflexiones tradicionales sobre el videoarte y cuestionarlas desde una óptica menos convencional, más orientada hacia la reflexión que, a partir de éste, puede hacerse a propósito de la mímesis y la representación del mundo.

  2. ROS-IGTL-Bridge: an open network interface for image-guided therapy using the ROS environment.

    Science.gov (United States)

    Frank, Tobias; Krieger, Axel; Leonard, Simon; Patel, Niravkumar A; Tokuda, Junichi

    2017-08-01

    With the growing interest in advanced image-guidance for surgical robot systems, rapid integration and testing of robotic devices and medical image computing software are becoming essential in the research and development. Maximizing the use of existing engineering resources built on widely accepted platforms in different fields, such as robot operating system (ROS) in robotics and 3D Slicer in medical image computing could simplify these tasks. We propose a new open network bridge interface integrated in ROS to ensure seamless cross-platform data sharing. A ROS node named ROS-IGTL-Bridge was implemented. It establishes a TCP/IP network connection between the ROS environment and external medical image computing software using the OpenIGTLink protocol. The node exports ROS messages to the external software over the network and vice versa simultaneously, allowing seamless and transparent data sharing between the ROS-based devices and the medical image computing platforms. Performance tests demonstrated that the bridge could stream transforms, strings, points, and images at 30 fps in both directions successfully. The data transfer latency was bridge could achieve 900 fps for transforms. Additionally, the bridge was demonstrated in two representative systems: a mock image-guided surgical robot setup consisting of 3D slicer, and Lego Mindstorms with ROS as a prototyping and educational platform for IGT research; and the smart tissue autonomous robot surgical setup with 3D Slicer. The study demonstrated that the bridge enabled cross-platform data sharing between ROS and medical image computing software. This will allow rapid and seamless integration of advanced image-based planning/navigation offered by the medical image computing software such as 3D Slicer into ROS-based surgical robot systems.

  3. Silane grafted natural rubber and its compatibilization effect on silica-reinforced rubber tire compounds

    NARCIS (Netherlands)

    Sengloyluan, K.; Sahakaro, K.; Dierkes, W. K.; Noordermeer, J. W.M.

    2017-01-01

    Natural Rubber (NR) grafted with 3-octanoylthio-1-propyltriethoxysilane (NXT) was prepared by melt mixing using 1,1′-di(tert-butylperoxy)-3,3,5-trimethylcyclohexane as initiator at 140 °C with NXT contents of 10 and 20 parts per hundred rubber [phr] and initiator 0.1 phr. The silane grafted on NR

  4. Ghost Hunting with Lollies, Chess and Lego: Appreciating the "Messy" Complexity (and Costs) of Doing Difficult Research in Education

    Science.gov (United States)

    Graham, Linda J.; Buckley, Linda

    2014-01-01

    This paper contributes to conversations about the funding and quality of education research. The paper proceeds in two parts. Part I sets the context by presenting an historical analysis of funding allocations made to Education research through the ARC's Discovery projects scheme between the years 2002 and 2014, and compares these trends to…

  5. La reivindicación del saber lego en la defensa de la salud pública: Erin Brockovich

    OpenAIRE

    Menéndez-Navarro, Alfredo

    2011-01-01

    Basada en hechos reales, Erin Brockovich narra la singular labor de esta mujer sin formación legal y un complicado contexto familiar en la preparación y desenlace de una exitosa demanda contra la Pacific Gas and Electric Company por contaminación de aguas de consumo humano con cromo hexavalente en Hinkley (California, EE.UU.). La película permite acercarnos a las estrategias de ocultación de riesgos ambientales de las grandes corporaciones industriales así como reivindicar el valor del conoci...

  6. An Exploration of Developing Active Exploring and Problem Solving Skill Lego Robot Course by the Application of Anchored Instruction Theory

    Science.gov (United States)

    Chen, Chen-Yuan

    2013-01-01

    In recent years, researches had shown that the development of problem solving skill became important for education, and the educational robots are capable for promoting students not only understand the physical and mathematical concepts, but also have active and constructive learning. Meanwhile, the importance of situation in education is rising,…

  7. LEGOS: Object-based software components for mission-critical systems. Final report, June 1, 1995--December 31, 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-08-01

    An estimated 85% of the installed base of software is a custom application with a production quantity of one. In practice, almost 100% of military software systems are custom software. Paradoxically, the marginal costs of producing additional units are near zero. So why hasn`t the software market, a market with high design costs and low productions costs evolved like other similar custom widget industries, such as automobiles and hardware chips? The military software industry seems immune to market pressures that have motivated a multilevel supply chain structure in other widget industries: design cost recovery, improve quality through specialization, and enable rapid assembly from purchased components. The primary goal of the ComponentWare Consortium (CWC) technology plan was to overcome barriers to building and deploying mission-critical information systems by using verified, reusable software components (Component Ware). The adoption of the ComponentWare infrastructure is predicated upon a critical mass of the leading platform vendors` inevitable adoption of adopting emerging, object-based, distributed computing frameworks--initially CORBA and COM/OLE. The long-range goal of this work is to build and deploy military systems from verified reusable architectures. The promise of component-based applications is to enable developers to snap together new applications by mixing and matching prefabricated software components. A key result of this effort is the concept of reusable software architectures. A second important contribution is the notion that a software architecture is something that can be captured in a formal language and reused across multiple applications. The formalization and reuse of software architectures provide major cost and schedule improvements. The Unified Modeling Language (UML) is fast becoming the industry standard for object-oriented analysis and design notation for object-based systems. However, the lack of a standard real-time distributed object operating system, lack of a standard Computer-Aided Software Environment (CASE) tool notation and lack of a standard CASE tool repository has limited the realization of component software. The approach to fulfilling this need is the software component factory innovation. The factory approach takes advantage of emerging standards such as UML, CORBA, Java and the Internet. The key technical innovation of the software component factory is the ability to assemble and test new system configurations as well as assemble new tools on demand from existing tools and architecture design repositories.

  8. Transparent Nanofibrous Mesh Self-Assembled from Molecular LEGOs for High Efficiency Air Filtration with New Functionalities.

    Science.gov (United States)

    Singh, Varun Kumar; Ravi, Sai Kishore; Sun, Wanxin; Tan, Swee Ching

    2017-02-01

    Alarming levels of particulate matter pollution in air pose a serious health threat in several countries, therefore intriguing a strong need for an economic and a viable technology of air filtration. Current air purification technology is rather expensive with certain types even having the risk of emitting hazardous by-products. The authors have developed a multifunctional air filter inspired from the nasal hairs possessing an ability to specifically trap/exhale the foreign particles and allergens while still letting the air flow. This design is achieved by introducing different functionalities at different dimensional scale employing a bottom-up approach starting with an organic molecule which is further self-organized to form nanoparticles and ultimately to a nanofibrous mesh. While the molecular building block inherently possesses the property of shielding Ultraviolet (UV) rays, the nanofibrous mesh built up from it aids in trapping the particulate matter while maintaining good air flow. By controlling the concentration of the organic molecule, the formation of fibers has been enabled in the nanoscale regime to obtain high particle-capture possibilities. The self-assembled nanofibrous filter thus designed has achieved a high filtration efficiency of ≈90% for the PM 2.5 particle in congruence with the ability to block the harmful UV radiations. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  9. Toward a Molecular Lego Approach for the Diversity-Oriented Synthesis of Cyclodextrin Analogues Designed as Scaffolds for Multivalent Systems.

    Science.gov (United States)

    Lepage, Mathieu L; Schneider, Jérémy P; Bodlenner, Anne; Compain, Philippe

    2015-11-06

    A modular strategy has been developed to access a diversity of cyclic and acyclic oligosaccharide analogues designed as prefunctionalized scaffolds for the synthesis of multivalent ligands. This convergent approach is based on bifunctional sugar building blocks with two temporarily masked functionalities that can be orthogonally activated to perform Cu(I)-catalyzed azide-alkyne cycloaddition reactions (CuAAC). The reducing end is activated as a glycosyl azide and masked as a 1,6-anhydro sugar, while the nonreducing end is activated as a free alkyne and masked as a triethylsilyl-alkyne. Following a cyclooligomerization approach, the first examples of close analogues of cyclodextrins composed of d-glucose residues and triazole units bound together through α-(1,4) linkages were obtained. The cycloglucopyranoside analogue containing four sugar units was used as a template to prepare multivalent systems displaying a protected d-mannose derivative or an iminosugar by way of CuAAC. On the other hand, the modular approach led to acyclic alkyne-functionalized scaffolds of a controlled size that were used to synthesize multivalent iminosugars.

  10. Overview of a HLA-Ig based "Lego-like system" for T cell monitoring, modulation and expansion.

    Science.gov (United States)

    Oelke, Mathias; Schneck, Jonathan P

    2010-07-01

    Recent advances in molecular medicine have shown that soluble MHC-multimers can be valuable tools for both analysis and modulation of antigen-specific immune responses in vitro and in vivo. In this review, we describe the use of dimeric human and mouse major histocompatibility complexes, MHC-Ig, as part of an artificial Antigen-Presenting Cell (aAPC). MHC-Ig-based aAPC and its derivatives represent an exciting new platform technology for measuring and manipulating immune responses in vitro as well as in vivo. This new technology has the potential to help overcome many of the obstacles associated with limitations in current antigen-specific approaches of immunotherapy for the treatment of cancer, infectious diseases and autoimmunity.

  11. On E(11) of M-theory: 1. Hidden Symmetries of Maximal Supergravities and Lego of Dynkin Diagrams

    International Nuclear Information System (INIS)

    Nurmagambetov, A.J.

    2007-01-01

    We review a graphical way of classifying hidden symmetry algebras and groups of D=11, 10 maximal supergravities in terms of Dynkin diagrams, the shapes of which are determined by the bosonic field content of supergravities supermultiplets. The approach we follow is tightly related to the West's conjecture on a hidden symmetry of M-theory, and we discuss benefits of the approach in compare to other ways of searching for hidden symmetries of String Theory

  12. Chiral 1,2- and 1,3-diol-functionalized chromophores as Lego building blocks for coupled structures.

    Science.gov (United States)

    Spange, Stefan; Hofmann, Katja; Walfort, Bernhard; Rüffer, Tobias; Lang, Heinrich

    2005-10-14

    Chiral nitroanilines containing 1,2- or 1,3-diol functionalities have been synthesized by nucleophilic aromatic substitution of fluoronitroanilines with 1-aminopropane-2,3-diols and 2-aminopropane-1,3-diol in the melt. X-ray structure analyses confirm retention of the configuration of the chiral center. The novel chromophores are suitable to link reversibly to various substituted arylboronic acids which allows the construction of new solvatochromic sensor molecules suitable to response to solvent and anion coordination by fluoride. The solvatochromism of the new compounds has been studied using the Kamlet-Taft LSE relationship.

  13. Solving a meiotic LEGO puzzle: transverse filaments and the assembly of the synaptonemal complex in Caenorhabditis elegans.

    Science.gov (United States)

    Hawley, R Scott

    2011-10-01

    The structure of the meiosis-specific synaptonemal complex, which is perhaps the central visible characteristic of meiotic prophase, has been a matter of intense interest for decades. Although a general picture of the interactions between the transverse filament proteins that create this structure has emerged from studies in a variety of organisms, a recent analysis of synaptonemal complex structure in Caenorhabditis elegans by Schild-Prüfert et al. (2011) has provided the clearest picture of the structure of the architecture of a synaptonemal complex to date. Although the transverse filaments of the worm synaptonemal complex are assembled differently then those observed in yeast, mammalian, and Drosophila synaptonemal complexes, a comparison of the four assemblies shows that achieving the overall basic structure of the synaptonemal complex is far more crucial than conserving the structures of the individual transverse filaments.

  14. Space technology and robotics in school projects

    Science.gov (United States)

    Villias, Georgios

    2016-04-01

    Space-related educational activities is a very inspiring and attractive way to involve students into science courses, present them the variety of STEM careers that they can follow, while giving them at the same time the opportunity to develop various practical and communication skills necessary for their future professional development. As part of a large scale extracurricular course in Space Science, Space Technology and Robotics that has been introduced in our school, our students, divided in smaller groups of 3-4 students in each, try to understand the challenges that current and future space exploration is facing. Following a mixture of an inquiry-based learning methodology and hands-on practical activities related with constructions and experiments, students get a glimpse of the pre-mentioned fields. Our main goal is to gain practical knowledge and inspiration from the exciting field of Space, to attain an adequate level of team spirit and effective cooperation, while developing technical and research data-mining skills. We use the following two approaches: 1. Constructive (Technical) approach Designing and constructing various customized robotic machines, that will simulate the future space exploration vehicles and satellites needed to study the atmosphere, surface and subsurface of planets, moons or other planetary bodies of our solar system that have shown some promising indications for the existence of life, taking seriously into account their special characteristics and known existing conditions (like Mars, Titan, Europa & Enceladus). The STEM tools we use are the following: - LEGO Mindstorms: to construct rovers for surface exploration. - Hydrobots: an MIT's SeaPerch program for the construction of submarine semi-autonomous robots. - CanSats: Arduino-based microsatellites able to receive, record & transmit data. - Space balloons: appropriate for high altitude atmospheric measurements & photography. 2. Scientific approach Conducting interesting physics

  15. Non-palpable and difficult contraceptive implant removals: The New ...

    African Journals Online (AJOL)

    2017-12-03

    Dec 3, 2017 ... Subdermal contraceptive implants are one method of long-acting reversible contraception. Implanon NXT ... implants are easy to remove through a small opening in the skin. In a small .... povidone (Betadine) or chlorhexidine.

  16. Up-Regulation of CYP2C19 Expression by BuChang NaoXinTong via PXR Activation in HepG2 Cells.

    Directory of Open Access Journals (Sweden)

    Hong Sun

    Full Text Available Cytochrome P450 2C19 (CYP2C19 is an important drug-metabolizing enzyme (DME, which is responsible for the biotransformation of several kinds of drugs such as proton pump inhibitors, platelet aggregation inhibitors and antidepressants. Previous studies showed that Buchang NaoXinTong capsules (NXT increased the CYP2C19 metabolic activity in vitro and enhanced the antiplatelet effect of clopidogrel in vivo. However, the underlying molecular mechanism remained unclear. In the present study, we examined whether Pregnane X receptor (PXR plays a role in NXT-mediated regulation of CYP2C19 expression.We applied luciferase assays, real-time quantitative PCR (qPCR, Western blotting and cell-based analysis of metabolic activity experiments to investigate the NXT regulatory effects on the CYP2C19 promoter activity, the mRNA/ protein expression and the metabolic activity.Our results demonstrated that NXT significantly increased the CYP2C19 promoter activity when co-transfected with PXR in HepG2 cells. Mutations in PXR responsive element abolished the NXT inductive effects on the CYP2C19 promoter transcription. Additionally, NXT incubation (150 and 250μg/mL also markedly up-regulated endogenous CYP2C19 mRNA and protein levels in PXR-transfected HepG2 cells. Correspondingly, NXT leaded to a significant enhancement of the CYP2C19 catalytic activity in PXR-transfected HepG2 cells.In summary, this is the first study to suggest that NXT could induce CYP2C19 expression via PXR activation.

  17. COMPARACIÓN DE LA PERCEPCIÓN ESTÉTICA DE LA SONRISA ENTRE ESPECIALISTAS DE ORTODONCIA, ESTUDIANTES DE ORTODONCIA, ODONTÓLOGOS Y LEGOS

    OpenAIRE

    García Garza, Edith Briceida

    2012-01-01

    Antecedentes: Una de las características de la estética facial que sin duda resalta a la vista es la sonrisa. Una sonrisa atractiva es fuertemente relacionada con rasgos de la personalidad como calidez, calma, extroversión, y baja ansiedad. Uno de los aspectos más importantes de la estética facial y dental es la exposición vertical anterior de los dientes. Desafortunadamente los dientes no siempre están en balance con las estructuras faciales adyacentes. Lo que puede afectar la...

  18. Creencias sobre la madurez psicológica en adultos dominicanos: un estudio sobre sus dimensiones evolutivas y de personalidad desde la perspectiva del conocimiento lego

    OpenAIRE

    Núñez Fernández, Ramón Onésimo

    2015-01-01

    Uno de los constructos psicológicos elaborados por la psicología más empleado, pero menos definido con precisión es el de la “madurez psicológica” o “madurez personal”; y aunque hoy día podemos encontrar definiciones de algún modo explicitas sobre el constructo en esencia poco nos dicen sobre su significado social. El interés fundamental de esta tesis está basado en la exploración de las creencias e ideas que tienes las personas adultas acerca del contructo de madurez personal y las dimension...

  19. Karabo ya kereke mabapi le dit�hiwana le bana bao ba lego kotsing ka lebaka la HIV AIDS: Maikutlo a sedumedi sa ka pebeleng

    Directory of Open Access Journals (Sweden)

    Elijah Mahlangu

    2011-03-01

    Full Text Available The church�s response towards orphans and vulnerable children as a result of HIV AIDS: A theological biblical perspective By its very nature the human immunodeficiency virus (HIV and the acquired immunodeficiency syndrome (AIDS should invoke response and challenge from all sectors of society, including the church and the academia (theological practitioners. However, in the early years of HIV and AIDS, more or less 30 years ago, the church has been apathetic in its response and engagement with issues relating to HIV and AIDS. Due to the fact that the HIvirus and the AIDS disease raises moral, ethical, gender, cultural, sexual and spiritual matters, it took a considerable long time for the church to become involved. In theological practice the response and involvement in HIV and AIDS matters was also initially characterised by theological impotency.This article therefore, provides a philosophical, theological and biblical basis and reflection to the church especially, in Africa, to effectively respond to the plight, crisis and scourge of HIV and AIDS and its impact to orphans and other vulnerable children (OVC. The effects and repercussions of this pandemic are everywhere glaring, especially in developing nations. This worldwide epidemiology of HIV and AIDS has evoked resources from many national governments (particularly in developing countries, the United Nations bodies, Non-Profit Organisations, etcetra. Indeed, the bone-chilling statistics emanate from the World Health Organisation, AIDS conferences and newspaper articles The latest statistics on people infected with HIV and people living with AIDS, including the OVC, sends shock waves throughout the world. The apathetic and largely disengagement by the church towards the OVC, paucity and dearth of theological publications in current times on this subject and topic indicate that the church in Africa needs to come to terms with her theological and biblical mandate to care for the OVC. This article therefore provides a synopsis and survey of how God�s people (Israel in the Old Testament and the Church in the New Testament were commanded by God to care for OVC. Based on the biblical text, the contemporary church in Africa should break the vicious and dangerous cycle of silence, apathy and disengagement and start alleviating the plight of OVC.

  20. Molecular Line Emission as a Tool for Galaxy Observations (LEGO). I. HCN as a tracer of moderate gas densities in molecular clouds and galaxies

    Science.gov (United States)

    Kauffmann, Jens; Goldsmith, Paul F.; Melnick, Gary; Tolls, Volker; Guzman, Andres; Menten, Karl M.

    2017-09-01

    Trends observed in galaxies, such as the Gao & Solomon relation, suggest a linear relationship between the star formation rate and the mass of dense gas available for star formation. Validation of such trends requires the establishment of reliable methods to trace the dense gas in galaxies. One frequent assumption is that the HCN (J = 1-0) transition is unambiguously associated with gas at H2 densities ≫ 104 cm-3. If so, the mass of gas at densities ≫ 104 cm-3 could be inferred from the luminosity of this emission line, LHCN (1-0). Here we use observations of the Orion A molecular cloud to show that the HCN (J = 1-0) line traces much lower densities 103 cm-3 in cold sections of this molecular cloud, corresponding to visual extinctions AV ≈ 6 mag. We also find that cold and dense gas in a cloud like Orion produces too little HCN emission to explain LHCN (1-0) in star forming galaxies, suggesting that galaxies might contain a hitherto unknown source of HCN emission. In our sample of molecules observed at frequencies near 100 GHz (also including 12CO, 13CO, C18O, CN, and CCH), N2H+ is the only species clearly associated with relatively dense gas.

  1. Silane grafted natural rubber and its compatibilization effect on silica-reinforced rubber tire compounds

    Directory of Open Access Journals (Sweden)

    K. Sengloyluan

    2017-12-01

    Full Text Available Natural Rubber (NR grafted with 3-octanoylthio-1-propyltriethoxysilane (NXT was prepared by melt mixing using 1,1′-di(tert-butylperoxy-3,3,5-trimethylcyclohexane as initiator at 140 °C with NXT contents of 10 and 20 parts per hundred rubber [phr] and initiator 0.1 phr. The silane grafted on NR molecules was confirmed by Fourier transform infrared (FTIR, proton nuclear magnetic resonance (1H-NMR and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM-EDX. Based on 1H-NMR, the use of 10 and 20 phr (parts per hundred resin of silane resulted in grafted NXT onto NR of 0.66 and 1.32 mol%, respectively, or a grafting efficiency of approx. 38%. The use of NXT-grafted NR as compatibilizer in silica-filled NR compounds, to give a total amount of NXT in both grafted and non-grafted forms in the range of 0.8–6.1 wt% relative to the silica, decreases the Mooney viscosity and Payne effect of the compounds, improves filler-rubber interaction, and significantly increases the tensile properties of the silica-filled NR-compounds compared to the non-compatibilized one. At the same silane-content, the use of silane-grafted NR gives slightly better properties than the straight use of the same silane. With sulfur compensation, the use of NXT-grafted-NR with about 6 wt% NXT relative to the silica gives technical properties that reach the levels obtained for straight use of bis-(3-triethoxysilyl-propyltetrasulfide (TESPT at 8.6 wt% relative to the silica.

  2. Naoxintong Protects Primary Neurons from Oxygen-Glucose Deprivation/Reoxygenation Induced Injury through PI3K-Akt Signaling Pathway

    Directory of Open Access Journals (Sweden)

    Yan Ma

    2016-01-01

    Full Text Available Naoxintong capsule (NXT, developed from Buyang Huanwu Decoction, has shown the neuroprotective effects in cerebrovascular diseases, but the neuroprotection mechanisms of NXT on ischemia/reperfusion injured neurons have not yet been well known. In this study, we established the oxygen-glucose deprivation/reoxygenation (OGD/R induced neurons injury model and treat the neurons with cerebrospinal fluid containing NXT (BNC to investigate the effects of NXT on OGD/R induced neurons injury and potential mechanisms. BNC improved neuron viability and decreased apoptotic rate induced by OGD/R. BNC attenuated OGD/R induced cytosolic and mitochondrial Ca2+ overload, ROS generation, intracellular NO levels and nNOS mRNA increase, and cytochrome-c release when compared with OGD/R group. BNC significantly inhibited both mPTP opening and ΔΨm depolarization. BNC increased Bcl-2 expression and decreased Bax expression, upregulated the Bcl-2/Bax ratio, downregulated caspase-3 mRNA and caspase-9 mRNA expression, and decreased cleaved caspase-3 expression and caspase-3 activity. BNC increased phosphorylation of Akt following OGD/R, while LY294002 attenuated BNC induced increase of phosphorylated Akt expression. Our study demonstrated that NXT protected primary neurons from OGD/R induced injury by inhibiting calcium overload and ROS generation, protecting mitochondria, and inhibiting mitochondrial apoptotic pathway which was mediated partially by PI3K-Akt signaling pathway activation.

  3. The ISOLDE LEGO® robot: building interest in frontier research

    Science.gov (United States)

    Elias Cocolios, Thomas; Lynch, Kara M.; Nichols, Emma

    2017-07-01

    An outreach programme centred around nuclear physics making use of a LEGO® Mindstorm® kit is presented. It consists of a presentation given by trained undergraduate students as science ambassadors followed by a workshop where the target audience programs the LEGO® Mindstorm® robots to familiarise themselves with the concepts in an interactive and exciting way. This programme has been coupled with the CERN-ISOLDE 50th anniversary and the launch of the CERN-MEDICIS facility in Geneva, Switzerland. The modular aspect of the programme readily allows its application to other topics.

  4. Organizational Learning with Crowdsourcing

    DEFF Research Database (Denmark)

    Schlagwein, Daniel; Bjørn-Andersen, Niels

    2014-01-01

    , a form of open innovation enabled by state-of-the-art IT. We examine the phenomenon of IT-enabled organizational learning with crowdsourcing in a longitudinal revelatory case study of one such organization, LEGO (2010-14). We studied the LEGO Cuusoo crowdsourcing platform’s secret test in Japan, its...... widely recognized global launch, and its success in generating top-selling LEGO models. Based on an analysis of how crowdsourcing contributes to the organizational learning at LEGO, we propose the “ambient organizational learning” framework. The framework accommodates both traditional, member...

  5. A comparative study of pseudorandom sequences used in a c-VEP based BCI for online wheelchair control

    DEFF Research Database (Denmark)

    Isaksen, Jonas L.; Mohebbi, Ali; Puthusserypady, Sadasivan

    2016-01-01

    In this study, a c-VEP based BCI system was developed to run on three distinctive pseudorandom sequences, namely the m-code, the Gold-code, and the Barker-code. The Visual Evoked Potentials (VEPs) were provoked using these codes. In the online session, subjects controlled a LEGO® Mindstorms® robot...

  6. LEGO-inspired drug design: Discovery of novel fungal Plasma membrane H+-ATPase (Pma1) inhibitors from small molecule libraries: An introduction of HFSA-SBS_DOS-RD strategy in drug discovery

    DEFF Research Database (Denmark)

    Tung, Truong Thanh; Dao, Trong Tuan; Palmgren, Michael B.

    to extracellular, this enzyme generates a transmembrane electrochem. gradient, as a consequence, fungi can uptake nutrients by secondary transport systems. Until now, only low resoln. of protein structure has been reported, and notably there a no report of co-crystal structure of Pma1 with inhibitors. Therefore......-oriented synthesis (SBS_DOS) and rational design (RD), so called HFSA-SBS_DOS-RD strategy in drug discovery and development process. Using HFSA-SBS_DOS-RD, our group successfully designed, synthesized, and performed SAR studies of novel compds. potent Pma1 inhibitors. An expeditious, high yield and scalable...... microwave-assisted synthesis was developed and applied for synthesis of library compds. To our delight, ours compd. libraries were able to inhibit Pma1 activity and growth inhibitory activity of C. albican and S. cerevisiae revealed the most promising example for future development of antifungal drugs...

  7. External walls made of solar Lego bricks. Sulfurcell head office building: External wall construction according to the dimensions of Sulfurcell solar modules; Solare Legosteinfassade. Die Masse der hauseigenen Module bildeten den Ausgangspunkt fuer die Planung des Sulfurcell-Hauptquartiers

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Neelke

    2009-11-15

    The Sulfurcell Solartechnik GmbH constructed a new office building at Berlin-Adlershof. The building's external walls were designed on the basis of the frameless Sulfurcell standard module. The building intends to prove that solar modules are not a luxury item but an efficient and easy-to-handle constructional material. (orig.)

  8. Energies controlling nucleation and growth processes: The case of Ag/W(110)

    DEFF Research Database (Denmark)

    Jones, G. W.; Marcano, J. M.; Nørskov, Jens Kehlet

    1990-01-01

    The nucleation density Nx(T) of Ag islands on the 2-monolayer-thick silver intermediate layer on W(110) is measured by UHV scanning electron microscopy and compared with kinetic nucleation equations. This yields a well-determined value of Ed+2Eb=0.65±0.03 eV, with pair-binding energy Eb=0...

  9. Dicty_cDB: CHR619 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available rslfikmptkt*mxx**sw*kmlckdslx*sl*fr lw*rf*m*nxt*wfxmlcpfrkttpttt*xm**xmpxrpxm*s*stxkrmxrccp*tttk mxfkmxxkt*m*sxplx*rmlcxxxxrxmfxqmsx...rpxm*s*stwkrmxxccp*ttxkmi ixmsxkt*m*nqsxw*rmxc Frame B: s...vqlhivxxvxhcsmxkdvatcpchqqlveqvyqepssstagv ssclttlmsxwhicvkdsnggklgpngxxxfrr*fixkyir--- ---mnv*lixxvknvgxdpx

  10. Contraception: Everyone's responsibility | Patel | South African ...

    African Journals Online (AJOL)

    The intrauterine contraceptive device, the levonorgestrel intrauterine system and the injectable progestogen contraceptives form part of this group of contraceptives. The most recently launched LARC is Implanon NXT. A comprehensive guideline to assess suitability of the various contraceptive methods in various medical ...

  11. E-infocenter, a visual tool for project management in educational robotics using web technologies E-infocenter, Una herramienta visual para la gestión de proyectos en robótica educativa usando tecnologías web

    Directory of Open Access Journals (Sweden)

    Kathia Pittí Patiño

    2012-07-01

    -tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} Las tecnologías como Internet y la robótica educativa, caracterizadas por ser relativamente nuevas y motivadoras,  son el escenario ideal para la aplicación de los métodos activos de enseñanza, tal es el caso del aprendizaje basado en proyectos. La realización de proyectos con robots apoyados por el entorno colaborativo de la Web 2.0, puede ayudar al alumnado a desarrollar una serie de competencias transferibles al ámbito laboral.   En este artículo se describe el proceso de selección, diseño e implementación de una herramienta visual en línea denominada E-infocenter para la gestión de proyectos. Esta herramienta ha sido utilizada por primera vez durante seis semanas en el Taller Vehicles NXT con robots LEGO, dirigido a niños de edades comprendidas entre 8 y 15 años. Los beneficios percibidos por los participantes han sido a nivel de gestión, emocional y de colaboración.

  12. Automation Technology in Elementary Technology Education.

    Science.gov (United States)

    Hiltunen, Jukka; Jarvinen, Esa-Matti

    2000-01-01

    Finnish fifth-graders (n=20) and sixth-graders (n=23) worked in teams in a Lego/Logo-Control Lab to complete Lego design activities. Observations showed that they became familiar with automation technology but their skills were not always up to their ideas. Activities based on real-life situations gave them ownership and engaged them in learning.…

  13. MM96.61 Resultater fra projektet "Nordisk audit af koordinatmålmaskiner"

    DEFF Research Database (Denmark)

    Hansen, Hans Nørgaard

    1996-01-01

    Results from the project "Nordic audit of coordinate measuring machines". Presentation at the 4th seminar on coordinate metrology september 1997 LEGO, Billund.......Results from the project "Nordic audit of coordinate measuring machines". Presentation at the 4th seminar on coordinate metrology september 1997 LEGO, Billund....

  14. Counter-narratives and organizational crisis

    DEFF Research Database (Denmark)

    Lundholt, Marianne Wolff

    2017-01-01

    with the announcement that LEGO will not renew its co-promotion contract with Shell signed in 2011, in which co-branded LEGO toy cars are sold at Shell stations in selected countries in a deal valued at £68 million. The Greenpeace campaign was a reaction to Shell’s recently announced plans to drill in the Alaskan...

  15. 当积木不再是积木

    Institute of Scientific and Technical Information of China (English)

    郑天欣

    2009-01-01

    Leaked images of what appears to be the world's first Lego mobile phone have appeared on the internet. The brightly colored Alcatel phone has been styled to look like as if built of red, blue and yellow Lego bricks.

  16. Model-Checking Real-Time Control Programs

    DEFF Research Database (Denmark)

    Iversen, T. K.; Kristoffersen, K. J.; Larsen, Kim Guldstrand

    2000-01-01

    In this paper, we present a method for automatic verification of real-time control programs running on LEGO(R) RCX(TM) bricks using the verification tool UPPALL. The control programs, consisting of a number of tasks running concurrently, are automatically translated into the mixed automata model...... of UPPAAL. The fixed scheduling algorithm used by the LEGO(R) RCX(TM) processor is modeled in UPPALL, and supply of similar (sufficient) timed automata models for the environment allows analysis of the overall real-time system using the tools of UPPALL. To illustrate our technique for sorting LEGO(R) bricks...

  17. A modular approach to lead-cooled reactors modelling

    Energy Technology Data Exchange (ETDEWEB)

    Casamassima, V. [CESI RICERCA, via Rubattino 54, I-20134 Milano (Italy)], E-mail: casamassima@cesiricerca.it; Guagliardi, A. [CESI RICERCA, via Rubattino 54, I-20134 Milano (Italy)], E-mail: guagliardi@cesiricerca.it

    2008-06-15

    After an overview of the lego plant simulation tools (LegoPST), the paper gives some details about the ongoing LegoPST extension for modelling lead fast reactor plants. It refers to a simple mathematical model of the liquid lead channel dynamic process and shows the preliminary results of its application in dynamic simulation of the BREST 300 liquid lead steam generator. Steady state results agree with reference data [IAEA-TECDOC 1531, Fast Reactor Database, 2006 Update] both for water and lead.

  18. Project Inner Brick - Colorful Plastic Bricks in Psychotherapy - An Introduction to Methodology

    Directory of Open Access Journals (Sweden)

    Neidert László

    2015-06-01

    Full Text Available PIB is a research project pertaining to the psychotherapeutic potential of Lego bricks. This is based on Lego Group’s own method called Lego Seriousplay and Eric Berne's transactional analysis as a theoretical background. If we see it from the Lego’s aspect, our plan is a training like LSP. It is only alike because of the special application. We made a lot of modifications according to the original methodology. In this document we would like to present details of our research we have been working on for almost two years. The characteristics of our methodology will be illustrated, too.

  19. Bricklayer: An Authentic Introduction to the Functional Programming Language SML

    Directory of Open Access Journals (Sweden)

    Victor Winter

    2014-12-01

    Full Text Available Functional programming languages are seen by many as instrumental to effectively utilizing the computational power of multi-core platforms. As a result, there is growing interest to introduce functional programming and functional thinking as early as possible within the computer science curriculum. Bricklayer is an API, written in SML, that provides a set of abstractions for creating LEGO artifacts which can be viewed using LEGO Digital Designer. The goal of Bricklayer is to create a problem space (i.e., a set of LEGO artifacts that is accessible and engaging to programmers (especially novice programmers while providing an authentic introduction to the functional programming language SML.

  20. Building Blocks of the Universe

    CERN Document Server

    The ATLAS collaboration

    2015-01-01

    This article presents possibilities to impart knowledge of and enthusiasm for particle physics to essentially all non-expert target audiences by the use of LEGO bricks and models of particle physics experiments built from these. Methods of using LEGO models, both as a passive exhibit and as part of interactive outreach events, are presented, along with a historical review of the “Build Your Own Particle Detector” programme and the corresponding idea of hosting competitions in building detector models in LEGO pieces as a perfect setting to grasp people’s attention, get them involved and ultimately convey knowledge in particle physics to them.

  1. A modular approach to lead-cooled reactors modelling

    International Nuclear Information System (INIS)

    Casamassima, V.; Guagliardi, A.

    2008-01-01

    After an overview of the lego plant simulation tools (LegoPST), the paper gives some details about the ongoing LegoPST extension for modelling lead fast reactor plants. It refers to a simple mathematical model of the liquid lead channel dynamic process and shows the preliminary results of its application in dynamic simulation of the BREST 300 liquid lead steam generator. Steady state results agree with reference data [IAEA-TECDOC 1531, Fast Reactor Database, 2006 Update] both for water and lead

  2. Precision optical systems for the control and measurement of electric power

    International Nuclear Information System (INIS)

    MacKellar, R.

    2000-01-01

    Development od three optical systems for use in the measurement of electric power -- the optical current transducer (NXCT), the optical voltage transducer (NCVT) and the optical voltage and current transducer (NXVCT) -- are discussed. Market for these systems is estimated at $ 600 million and growing, based on the aging infrastructure, the effects of deregulation and application in other market areas. Some competing products by other developers are also described, along with some discussion of the economic advantages to NxtPhase customers in terms of lower acquisition and installation cost, accuracy, and bandwidth. The importance of strategic partnerships and the strengths that strategic partners bring to a enterprise (domain knowledge, access, site for installation, investment capital, critical feedback) are reviewed. Preliminary results of field trials of NxtPhase's NXVCT are also discussed

  3. Easy fabrication of high quality nickel mold for deep polymer microfluidic channels

    International Nuclear Information System (INIS)

    Wong, Ten It; Tan, Christina Yuan Ling; Zhou, Xiaodong; Limantoro, Julian; Fong, Kin Phang; Quan, Chenggen; Sun, Ling Ling

    2016-01-01

    Mass fabrication of disposable microfluidic chips with hot embossing is a key technology for microfluidic chip based biosensors. In this work, we develop a new method of fabricating high quality and highly durable nickel molds for hot embossing polymer chips. The process involves the addition of a thick, patterned layer of negative photoresist AZ-125nxT to a 4″ silicon wafer, followed by nickel electroplating and delamination of the nickel mold. Our investigations found that compared to a pillar mask, a hole mask can minimize the diffraction effect in photolithography of a thick photoresist, reduce the adhesion of the AZ-125nxT to the photomask in photolithography, and facilitate clean development of the photoresist patterns. By optimizing the hot embossing and chip bonding parameters, microfluidic chips with deep channels are achieved. (paper)

  4. Drag &Drop, Multiphysics & Neural Net-based Lab-on-Chip Optimization Software, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — The overall objective of this project is to develop a drag and drop, component library (fluidic lego) based, system simulation and optimization software for entire...

  5. Drag &Drop, Mixed-Methodology-based Lab-on-Chip Design Optimization Software, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — The overall objective is to develop a ?mixed-methodology?, drag and drop, component library (fluidic-lego)-based, system design and optimization tool for complex...

  6. Lattice Commissioning Strategy Simulation for the B Factory

    International Nuclear Information System (INIS)

    Lee, M.; Whittum, D.; Yan, Y.; Cai, Y.; Shoaee, H.

    2011-01-01

    To prepare for the PEP-II turn on, we have studied one commissioning strategy with simulated lattice errors. Features such as difference and absolute orbit analysis and correction are discussed. To prepare for the commissioning of the PEP-II injection line and high energy ring (HER), we have developed a system for on-line orbit analysis by merging two existing codes: LEGO and RESOLVE. With the LEGO-RESOLVE system, we can study the problem of finding quadrupole alignment and beam position (BPM) offset errors with simulated data. We have increased the speed and versatility of the orbit analysis process by using a command file written in a script language designed specifically for RESOLVE. In addition, we have interfaced the LEGO-RESOLVE system to the control system of the B-Factory. In this paper, we describe online analysis features of the LEGO-RESOLVE system and present examples of practical applications.

  7. Coronary plaque quantification and fractional flow reserve by coronary computed tomography angiography identify ischaemia-causing lesions

    DEFF Research Database (Denmark)

    Gaur, Sara; Øvrehus, Kristian Altern; Dey, Damini

    2016-01-01

    AIMS: Coronary plaque characteristics are associated with ischaemia. Differences in plaque volumes and composition may explain the discordance between coronary stenosis severity and ischaemia. We evaluated the association between coronary stenosis severity, plaque characteristics, coronary computed...... tomography angiography (CTA)-derived fractional flow reserve (FFRCT), and lesion-specific ischaemia identified by FFR in a substudy of the NXT trial (Analysis of Coronary Blood Flow Using CT Angiography: Next Steps). METHODS AND RESULTS: Coronary CTA stenosis, plaque volumes, FFRCT, and FFR were assessed...

  8. Un Robot Móvil Autónomo Seguidor Delínea

    Directory of Open Access Journals (Sweden)

    Paola Andrea Galeano

    2014-01-01

    This paper describes an application example of an autonomous mobile robot developed for the sole purpose of performing the task of following a path defined by a line plotted on the floor. The detailed construction schedule is based on a previous analysis made under the graphical development environment NXT-G 2.0, taking into consideration the time spent on the course, the precision achieved by following the path and the ability to act autonomously.

  9. Consumer mechatronics: a challenging playground for transducing materials and devices

    Science.gov (United States)

    Skjolstrup, Carl E.; Vonsild, Asbjorn L.

    2003-03-01

    The authors of this article are characterised by having a background within robotics technology, and have within the last 2-3 years moved into a material & process dominated environment. The authors are among other things responsible within LEGO Company; an internationally known toy developer and producer, for identification, prioritisation and procurement of new technological opportunities within materials, processes and devices providing new functionalities for the LEGO product.

  10. Civil Justice: Lay Judges in the EU Countries

    Directory of Open Access Journals (Sweden)

    Stefan Machura

    2016-06-01

    Full Text Available Lay judges fulfill important functions for the justice system of a country. In the European Union member states, scholars have analysed the use of lay judges in criminal cases. However, little is known about lay participation in civil justice. The paper introduces commonly cited reasons to have lay judges as well as the principal forms of lay participation and then surveys the EU countries for its implementation in civil cases. Mixed tribunals, involving lay judges under the leadership of a professional judge, are relatively frequent. Several countries have special labour courts or commercial courts with lay members and others have single lay judges, or all-lay judge panels. Roughly a third of the 28 EU member states have no lay participation in civil justice but only three of those have no lay judges in any branch of the courts. Almost all the reasons for including lay decision makers are served somehow by the existing forms, including providing different experiences and perhaps expert knowledge. The article concludes, citing non-EU states and lay participation in criminal and administrative courts as further evidence, that lay judges in one form or another are an element of European legal systems. Los jueces legos cumplen funciones importantes para el sistema de justicia de un país. En los Estados miembro de la Unión Europea, académicos han analizado el uso de jueces legos en casos criminales. Sin embargo, se sabe poco acerca de la participación de los legos en la justicia civil. El artículo presenta las razones que habitualmente se citan para tener jueces legos, así como las formas principales de la participación de legos, para a continuación medir su implementación en casos civiles en los países de la Unión Europea. Son relativamente frecuentes los tribunales mixtos, en los que participan jueces legos, bajo la dirección de un juez profesional. Varios países tienen tribunales laborales especiales o tribunales comerciales con

  11. A scoping review of the role of LEGO® therapy for improving inclusion and social skills among children and youth with autism.

    Science.gov (United States)

    Lindsay, Sally; Hounsell, Kara Grace; Cassiani, Celia

    2017-04-01

    LEGO ® therapy uses children's natural interest in play to help motivate behavioural change and may be an effective teaching tool to increase social competency and communication skills. Although the literature is growing it has not been synthesized. To review the literature on the role of LEGO ® therapy on social skills and inclusion among children and youth with Autism Spectrum Disorder (ASD). A scoping review was conducted, involving comprehensive searches of international databases. Eligible articles included: (a) youth aged 19 or younger, with ASD; (b) empirical research on LEGO ® therapy interventions; (c) published from 1996 to 2016 in a peer-reviewed journal, conference proceedings, or dissertation. Of the 6964 studies identified, 15 articles-involving 293 participants, aged 5-16 (mean age 8.7 years), across five countries-met the inclusion criteria. Although the outcomes of the LEGO ® therapy varied across the studies, 14 studies reported at least one improvement in social and communication skills (e.g., building friendships, improved social interactions and social competence), ASD-specific behaviors, belonging, family relationships, coping, and reductions in playing alone. Although LEGO ® therapy shows promise as an intervention for children and youth with ASD, more rigorously designed studies are needed to fully understand its impact. Copyright © 2016 Elsevier Inc. All rights reserved.

  12. Tracking algorithms for multi-hexagonal assemblies (2D and 3D)

    International Nuclear Information System (INIS)

    Prabha, Hem; Marleau, Guy; Hébert, Alain

    2014-01-01

    Highlights: • We present the method of computations of 2D and 3D fluxes in hexagonal assemblies. • Computation of fluxes requires computation of track lengths. • Equations are developed (in 2D and 3D) and are implemented in a program HX7. • The program HX7 is implemented in the NXT module of the code DRAGON. • The tracks are plotted and fluxes are compared with the EXCELT module of DRAGON. - Abstract: Background: There has been a continuous effort to design new reactors and study these reactors under different conditions. Some of these reactors have fuel pins arranged in hexagonal pitch. To study these reactors, development of computational methods and computer codes is required. For this purpose, we have developed algorithms to track two dimensional and three dimensional cluster geometries. These algorithms have been implemented in a subprogram HX7, that is implemented in the code DRAGON (Version 3.06F) to compute neutron flux distributions in these systems. Methods: Computation of the neutron flux distribution requires solution of neutron transport equation. While solving this equation, by using Carlvik’s method of collision probabilities, computation of tracks in the hexagonal geometries is required. In this paper we present equations that we have developed for the computation of tracks in two dimensional (2D) and three dimensional (3D) multi-hexagonal assemblies (with two rotational orientations). These equations have been implemented in a subprogram HX7, to compute tracks in seven hexagonal assemblies. The subprogram HX7 has been implemented in the NXT module of the DRAGON code, where tracks in the pins are computed. Results: The results of our algorithms NXT(+HX7) have been compared with the results obtained by the EXCELT module of DRAGON (Version 3.06F). Conclusions: We find that all the fluxes in 2D and fluxes in the outer pin (3D) are converging to their 3rd decimal places, in both the modules EXCELT and NXT(+HX7). For other regions 3D fluxes

  13. A New Slender-Ship Theory of Wave Resistance.

    Science.gov (United States)

    1981-01-01

    then have / .i= (n /n+ tD / +nxt t/ td ).i = n X /an+t x /31-n t a4/ad,x x zy where 5 /Zn is the derivative of in the outward normal direction n to h, as was...function k(t) 1(1+t2 ) /2K(t)/ 4bd is given below. For shortness, the notat ion 2 1/2 2 2 1/2 2 2 2, =(l+t ) 12F 2 b=L(l+t2 //2F2 dl~ / will be used

  14. Comparing three methods for participatory simulation of hospital work systems

    DEFF Research Database (Denmark)

    Broberg, Ole; Andersen, Simone Nyholm

    Summative Statement: This study compared three participatory simulation methods using different simulation objects: Low resolution table-top setup using Lego figures, full scale mock-ups, and blueprints using Lego figures. It was concluded the three objects by differences in fidelity and affordance...... scenarios using the objects. Results: Full scale mock-ups significantly addressed the local space and technology/tool elements of a work system. In contrast, the table-top simulation object addressed the organizational issues of the future work system. The blueprint based simulation addressed...

  15. Study Groups in Denmark

    DEFF Research Database (Denmark)

    Hjorth, Poul G.

    2007-01-01

    Since 1998 European Study Groups have been held in Denmark, and Danish companies from LEGO and NOVO to very small high-tech firms have participated. I briefly describe the history, the organisation and the format of the Danish Study Groups, and highlight a few problem solutions.......Since 1998 European Study Groups have been held in Denmark, and Danish companies from LEGO and NOVO to very small high-tech firms have participated. I briefly describe the history, the organisation and the format of the Danish Study Groups, and highlight a few problem solutions....

  16. Thinking together with material representations

    DEFF Research Database (Denmark)

    Stege Bjørndahl, Johanne; Fusaroli, Riccardo; Østergaard, Svend

    2014-01-01

    of an experiment. Qualitative micro-analyses of the group interactions motivate a taxonomy of different roles that the material representations play in the joint epistemic processes: illustration, elaboration and exploration. Firstly, the LEGO blocks were used to illustrate already well-formed ideas in support......-down and bottom-up cognitive processes and division of cognitive labor.......How do material representations such as models, diagrams and drawings come to shape and aid collective, epistemic processes? This study investigated how groups of participants spontaneously recruited material objects (in this case LEGO blocks) to support collective creative processes in the context...

  17. A modular simulation code applied to pressurized water nuclear power plants

    International Nuclear Information System (INIS)

    Agnoux, D.

    1992-01-01

    Analysis of the overall operation of an installation requires taking into account all couplings between the various components and integrating all the automatic actions initiated by control and instrumentation. The tool used for this analysis must be a high performing simulation model, flexible enough to be able to be quickly adapted to varying configurations. In order to study the behaviour of PWR nuclear power stations during normal or incidental operating transients, EDF-SEPTEN has developed the ERABLE code (Etudes Reacteurs a Base LEGO), based on the LEGO software package. (author)

  18. Innovation and learning facilitated by play

    DEFF Research Database (Denmark)

    Hansen, Poul H. Kyvsgård; O´Connor, Rory

    2008-01-01

    "This paper describes an approach to facilitate interaction between students and industrial companies in a problem based learning environment. The approach is adapted from a methodology developed at the LEGO Company and relies on an improved ability to communicate complex problems when using...

  19. Knowledge Sharing Practice in a Play-Like Learning Environment

    DEFF Research Database (Denmark)

    Benjaminsen, Nana

    2007-01-01

    The topic of this paper is play-like learning as it occurs when technology based learning environments is invited into the classroom. Observations of 5th grade classes playing with Lego Robolab, is used to illustrate that different ways of learning becomes visible when digital technology...

  20. 2018 bliver afgørende for tre danske erhvervsikoner

    DEFF Research Database (Denmark)

    Ørholst, Henrik

    2018-01-01

    Klumme. LEGO, A.P. Møller og Novo Nordisk står alle overfor vigtige strategiske beslutninger i det nye år. Det vil sætte virksomhedernes topchefer på alvorlige prøver, og allerede nu tegner der sig et billede af, hvem der har de bedste kort på hånden....

  1. The Use of Robotics to Promote Computing to Pre-College Students with Visual Impairments

    Science.gov (United States)

    Ludi, Stephanie; Reichlmayr, Tom

    2011-01-01

    This article describes an outreach program to broaden participation in computing to include more students with visual impairments. The precollege workshops target students in grades 7-12 and engage students with robotics programming. The use of robotics at the precollege level has become popular in part due to the availability of Lego Mindstorm…

  2. A Low-Cost Quantitative Absorption Spectrophotometer

    Science.gov (United States)

    Albert, Daniel R.; Todt, Michael A.; Davis, H. Floyd

    2012-01-01

    In an effort to make absorption spectrophotometry available to high school chemistry and physics classes, we have designed an inexpensive visible light absorption spectrophotometer. The spectrophotometer was constructed using LEGO blocks, a light emitting diode, optical elements (including a lens), a slide-mounted diffraction grating, and a…

  3. Solving wave propagation within finite-sized composite media with linear embedding via Green's operators

    NARCIS (Netherlands)

    Lancellotti, V.; Tijhuis, A.G.

    2012-01-01

    The calculation of electromagnetic (EM) fields and waves inside finite-sized structures comprised of different media can benefit from a diakoptics method such as linear embedding via Green's operators (LEGO). Unlike scattering problems, the excitation of EM waves within the bulk dielectric requires

  4. On the entropy of LEGO®

    DEFF Research Database (Denmark)

    Durhuus, Bergfinnur; Eilers, Søren

    2014-01-01

    Abstract We propose the further study of the rate of growth of the number of contiguous buildings which may be made from n LEGO blocks of the same size and color. Specializing to blocks of dimension 2×4 we give upper and lower bounds, and speculate on the true value....

  5. Product Design and intentional Emergence facilitated by Serious Play

    DEFF Research Database (Denmark)

    Mabugunje, Ade; Hansen, Poul H. Kyvsgård; Eris, Ozgur

    2008-01-01

    "In this paper we discuss the phenomenon "intentional emergence" in a product development process context. We point to play as an enabler for intentional emergence and report on experiences with the Lego Serious Play method. Following our initial empirical experiences we identify six central...

  6. MODELING AND SHIFTING FOCUS AS A FACILITATOR FOR INTENTIONAL EMERGENCE IN TRANSFORMATION DESIGN

    DEFF Research Database (Denmark)

    Nielsen, Louise Møller; Hansen, Poul H. Kyvsgård; Mabogunje, Ade

    2009-01-01

    In this paper we discuss the phenomenon "intentional emergence" in a transformation design context. We examine modeling and play enablers for intentional emergence and report on experiences with the Lego Serious Play method. The empirical observations are based on a real-time transformation design...

  7. Quality and rules for mechanical aspects of tangible interaction design

    NARCIS (Netherlands)

    Broekhuijsen, M.J.; Delbressine, F.L.M.; Feijs, L.M.G.

    2011-01-01

    This paper describes the application of Exact Kinematic Constraint Design to designs meant for tangible interaction with users. The paper gives rules for generating high quality mechanical designs for tangible interactions. Each rule is explained using examples made in LEGO and real world examples.

  8. Sustainable advanced construction technologies

    CSIR Research Space (South Africa)

    Kuchena, JC

    2009-11-01

    Full Text Available techniques that are the backbone of industries such as the car manufacturing industry. Modular houses are designed and prefabricated away from site and assembled like Lego prinzips. Eco-Materials are also redefined and transformed with set standards...

  9. Interlocking Toy Building Blocks as Hands-On Learning Modules for Blind and Visually Impaired Chemistry Students

    Science.gov (United States)

    Melaku, Samuel; Schreck, James O.; Griffin, Kameron; Dabke, Rajeev B.

    2016-01-01

    Interlocking toy building blocks (e.g., Lego) as chemistry learning modules for blind and visually impaired (BVI) students in high school and undergraduate introductory or general chemistry courses are presented. Building blocks were assembled on a baseplate to depict the relative changes in the periodic properties of elements. Modules depicting…

  10. Factors Influencing the Uptake of a Mechatronics Curriculum Initiative in Five Australian Secondary Schools

    Science.gov (United States)

    Nicholas, Howard; Ng, Wan

    2012-01-01

    While the ready-made Lego[TM] Robotics kits are popular in schools and are used by students at both primary and secondary year levels, using the Picaxe microcontroller (chip) to create simple electronic devices, including robotic devices is less popular. The latter imposes an additional challenge as a result of the need to construct the universal…

  11. Legolandskabet

    DEFF Research Database (Denmark)

    Bundesen Svarre, Birgitte

    2007-01-01

    En læsning af Silicon Valley med fokus på arbejdsrum. Googles hovedkvarter sættes i relief af Douglas Couplands roman 'Microserfs' (1995), der foregår i Silicon Valley. Lego er en tilbagevendende metafor i romanen og søges sat over for Googles virkelighed anno 2006....

  12. Asiater mangler også i danske bestyrelser

    DEFF Research Database (Denmark)

    Ørholst, Henrik

    2018-01-01

    Stop nu. Der er ikke brug for mere snak og statistik om flere kvinder i bestyrelser. Der er mere brug for asiater og folk med digitale kompetencer. Der er lang vej igen, før ikonerne A.P. Møller-Mærsk, Novo Nordisk og LEGO har bestyrelser, der afspejler den verden, vi lever i....

  13. Manipulation of gene expression by infrared laser heat shock and its application to the study of tracheal development in Drosophila.

    Science.gov (United States)

    Miao, Guangxia; Hayashi, Shigeo

    2015-03-01

    Induction of gene expression in a specific cell and a defined time window is desirable to investigate gene function at the cellular level during morphogenesis. To achieve this, we attempted to introduce the infrared laser-evoked gene operator system (IR-LEGO, Kamei et al., 2009) in the Drosophila embryo. In this technique, infrared laser light illumination induces genes to be expressed under the control of heat shock promoters at the single cell level. We applied IR-LEGO to a transgenic fly stock, HS-eGFP, in which the enhanced green fluorescent protein (eGFP) gene is placed under the control of heat shock protein 70 promoter, and showed that eGFP expression can be induced in single cells within 1-2 hr after IR illumination. Furthermore, induction of HS-Branchless transgene encoding the Drosophila fibroblast growth factor (FGF) effectively altered the migration and branching patterns of the tracheal system. Our results indicated that IR-LEGO is a promising choice for the timely control of gene expression in a small group of cells in the Drosophila embryo. By using IR-LEGO, we further demonstrated that the tracheal terminal branching program is sensitive to localized expression of exogenous FGF. © 2014 Wiley Periodicals, Inc.

  14. TekkiKids: Technology clubs for children

    CSIR Research Space (South Africa)

    Marais, Mario A

    2007-04-01

    Full Text Available to be a good testing ground for the use of novel ways of introducing concepts such as programming. The difficulty that some of the learners experienced in constructing devices using Lego and other materials highlighted the need for basic skills that can...

  15. Designing an Augmented Reality Board Games with children: The BattleBoard 3D experience

    DEFF Research Database (Denmark)

    Grønbæk, Kaj; Kristensen, Sune; Andersen, Troels L.

    2004-01-01

    This paper discusses the design of Battleboard 3D (BB3D) which is an ARToolkit based game prototype, featuring the use of LEGO bricks for the physical and digital pieces. BB3D is a novel type of an AR game augmenting traditional board games with features from computer games. The initial experiments...

  16. Solar Sprint

    Science.gov (United States)

    Tabor, Richard; Anderson, Stephen

    2007-01-01

    In the "Solar Sprint" activity, students design, test, and race a solar-powered car built with Legos. The use of ratios is incorporated to simulate the actual work of scientists and engineers. This method encourages fourth-grade students to think about multiple variables and stimulates their curiosity when an activity doesn't come out as…

  17. An attentional bias for LEGO® people using a change detection task: Are LEGO® people animate?

    Science.gov (United States)

    LaPointe, Mitchell R P; Cullen, Rachael; Baltaretu, Bianca; Campos, Melissa; Michalski, Natalie; Sri Satgunarajah, Suja; Cadieux, Michelle L; Pachai, Matthew V; Shore, David I

    2016-09-01

    Animate objects have been shown to elicit attentional priority in a change detection task. This benefit has been seen for both human and nonhuman animals compared with inanimate objects. One explanation for these results has been based on the importance animate objects have served over the course of our species' history. In the present set of experiments, we present stimuli, which could be perceived as animate, but with which our distant ancestors would have had no experience, and natural selection could have no direct pressure on their prioritization. In the first experiment, we compared LEGO® "people" with LEGO "nonpeople" in a change detection task. In a second experiment, we attempt to control the heterogeneity of the nonanimate objects by using LEGO blocks, matched in size and colour to LEGO people. In the third experiment, we occlude the faces of the LEGO people to control for facial pattern recognition. In the final 2 experiments, we attempt to obscure high-level categorical information processing of the stimuli by inverting and blurring the scenes. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  18. Extended Linear Embedding via Green's Operators for Analyzing Wave Scattering from Anisotropic Bodies

    Directory of Open Access Journals (Sweden)

    V. Lancellotti

    2014-01-01

    Full Text Available Linear embedding via Green’s operators (LEGO is a domain decomposition method particularly well suited for the solution of scattering and radiation problems comprised of many objects. The latter are enclosed in simple-shaped subdomains (electromagnetic bricks which are in turn described by means of scattering operators. In this paper we outline the extension of the LEGO approach to the case of penetrable objects with dyadic permittivity or permeability. Since a volume integral equation is only required to solve the scattering problem inside a brick and the scattering operators are inherently surface operators, the LEGO procedure per se can afford a reduction of the number of unknowns in the numerical solution with the Method of Moments and subsectional basis functions. Further substantial reduction is achieved with the eigencurrents expansion method (EEM which employs the eigenvectors of the scattering operator as local entire-domain basis functions over a brick’s surface. Through a few selected numerical examples we discuss the validation and the efficiency of the LEGO-EEM technique applied to clusters of anisotropic bodies.

  19. Incorporating Solid Modeling and Team-Based Design into Freshman Engineering Graphics.

    Science.gov (United States)

    Buchal, Ralph O.

    2001-01-01

    Describes the integration of these topics through a major team-based design and computer aided design (CAD) modeling project in freshman engineering graphics at the University of Western Ontario. Involves n=250 students working in teams of four to design and document an original Lego toy. Includes 12 references. (Author/YDS)

  20. Danmarks nye erhvervsikoner venter i kulissen

    DEFF Research Database (Denmark)

    Ørholst, Henrik

    2018-01-01

    Ikonerne brænder ud. Falck, A.P. Møller - Mærsk, LEGO, Novo Nordisk og Danske Bank har ikke længere en status som urørlige. Nu er de kommet ned på jorden, og står alle med en stribe udfordringer....

  1. A Case of Cooperation in the European OR Education

    Science.gov (United States)

    Miranda, Joao; Nagy, Mariana

    2011-01-01

    European cooperation is a relevant subject that contributes to building a competitive network of high education institutions. A case of teacher mobility on behalf of the Erasmus programme is presented: it considers some Operations Research topics and the development of the Lego on My Decision module. The module considers eight lecture hours in…

  2. Assembling the LHC short straight sections

    CERN Document Server

    Maximilien Brice

    2005-01-01

    The building where the short straight sections are being assembled, was often called ‘Lego Land’ by the workers because of the wide variety of sets of magnets and cryostats. Short straight sections contain magnets for manipulating the beam inside cryostats with liquid helium to keep the magnets at a cool 1.9 K (-271.3°C).

  3. Playte, a tangible interface for engaging human-robot interaction

    DEFF Research Database (Denmark)

    Christensen, David Johan; Fogh, Rune; Lund, Henrik Hautop

    2014-01-01

    This paper describes a tangible interface, Playte, designed for children animating interactive robots. The system supports physical manipulation of behaviors represented by LEGO bricks and allows the user to record and train their own new behaviors. Our objective is to explore several modes of in...

  4. Understanding Processes of Multi-Stakeholder Brand-Interessement

    DEFF Research Database (Denmark)

    von Wallpach, Sylvia; Hemetsberger, Andrea; Kornum, Niels

    2013-01-01

    -oriented branding theory by investigating into discursive strategies multiple stakeholders use to engage in and mobilize brand networks on social media sites. An empirical investigation into two prominent online LEGO sites uncovers the role of social media sites as actors, and the interests and respective...

  5. Flexible Scenarios to build a Service Oriented Architecture on Demand

    African Journals Online (AJOL)

    pc

    2018-03-22

    Mar 22, 2018 ... technology and business requirements that could be used in a real Enterprise ... Keywords - Service Oriented Architecture, Service Enterprise,. Lego Model, On ... In the recent years, many companies have chosen ... management and more formal approaches through in-depth interviews .... Eng.,12: 74-78.

  6. Statistics of Shared Components in Complex Component Systems

    Science.gov (United States)

    Mazzolini, Andrea; Gherardi, Marco; Caselle, Michele; Cosentino Lagomarsino, Marco; Osella, Matteo

    2018-04-01

    Many complex systems are modular. Such systems can be represented as "component systems," i.e., sets of elementary components, such as LEGO bricks in LEGO sets. The bricks found in a LEGO set reflect a target architecture, which can be built following a set-specific list of instructions. In other component systems, instead, the underlying functional design and constraints are not obvious a priori, and their detection is often a challenge of both scientific and practical importance, requiring a clear understanding of component statistics. Importantly, some quantitative invariants appear to be common to many component systems, most notably a common broad distribution of component abundances, which often resembles the well-known Zipf's law. Such "laws" affect in a general and nontrivial way the component statistics, potentially hindering the identification of system-specific functional constraints or generative processes. Here, we specifically focus on the statistics of shared components, i.e., the distribution of the number of components shared by different system realizations, such as the common bricks found in different LEGO sets. To account for the effects of component heterogeneity, we consider a simple null model, which builds system realizations by random draws from a universe of possible components. Under general assumptions on abundance heterogeneity, we provide analytical estimates of component occurrence, which quantify exhaustively the statistics of shared components. Surprisingly, this simple null model can positively explain important features of empirical component-occurrence distributions obtained from large-scale data on bacterial genomes, LEGO sets, and book chapters. Specific architectural features and functional constraints can be detected from occurrence patterns as deviations from these null predictions, as we show for the illustrative case of the "core" genome in bacteria.

  7. Statistics of Shared Components in Complex Component Systems

    Directory of Open Access Journals (Sweden)

    Andrea Mazzolini

    2018-04-01

    Full Text Available Many complex systems are modular. Such systems can be represented as “component systems,” i.e., sets of elementary components, such as LEGO bricks in LEGO sets. The bricks found in a LEGO set reflect a target architecture, which can be built following a set-specific list of instructions. In other component systems, instead, the underlying functional design and constraints are not obvious a priori, and their detection is often a challenge of both scientific and practical importance, requiring a clear understanding of component statistics. Importantly, some quantitative invariants appear to be common to many component systems, most notably a common broad distribution of component abundances, which often resembles the well-known Zipf’s law. Such “laws” affect in a general and nontrivial way the component statistics, potentially hindering the identification of system-specific functional constraints or generative processes. Here, we specifically focus on the statistics of shared components, i.e., the distribution of the number of components shared by different system realizations, such as the common bricks found in different LEGO sets. To account for the effects of component heterogeneity, we consider a simple null model, which builds system realizations by random draws from a universe of possible components. Under general assumptions on abundance heterogeneity, we provide analytical estimates of component occurrence, which quantify exhaustively the statistics of shared components. Surprisingly, this simple null model can positively explain important features of empirical component-occurrence distributions obtained from large-scale data on bacterial genomes, LEGO sets, and book chapters. Specific architectural features and functional constraints can be detected from occurrence patterns as deviations from these null predictions, as we show for the illustrative case of the “core” genome in bacteria.

  8. Amyloid protein-mediated differential DNA methylation status regulates gene expression in Alzheimer’s disease model cell line

    International Nuclear Information System (INIS)

    Sung, Hye Youn; Choi, Eun Nam; Ahn Jo, Sangmee; Oh, Seikwan; Ahn, Jung-Hyuck

    2011-01-01

    Highlights: ► Genome-wide DNA methylation pattern in Alzheimer’s disease model cell line. ► Integrated analysis of CpG methylation and mRNA expression profiles. ► Identify three Swedish mutant target genes; CTIF, NXT2 and DDR2 gene. ► The effect of Swedish mutation on alteration of DNA methylation and gene expression. -- Abstract: The Swedish mutation of amyloid precursor protein (APP-sw) has been reported to dramatically increase beta amyloid production through aberrant cleavage at the beta secretase site, causing early-onset Alzheimer’s disease (AD). DNA methylation has been reported to be associated with AD pathogenesis, but the underlying molecular mechanism of APP-sw-mediated epigenetic alterations in AD pathogenesis remains largely unknown. We analyzed genome-wide interplay between promoter CpG DNA methylation and gene expression in an APP-sw-expressing AD model cell line. To identify genes whose expression was regulated by DNA methylation status, we performed integrated analysis of CpG methylation and mRNA expression profiles, and identified three target genes of the APP-sw mutant; hypomethylated CTIF (CBP80/CBP20-dependent translation initiation factor) and NXT2 (nuclear exporting factor 2), and hypermethylated DDR2 (discoidin domain receptor 2). Treatment with the demethylating agent 5-aza-2′-deoxycytidine restored mRNA expression of these three genes, implying methylation-dependent transcriptional regulation. The profound alteration in the methylation status was detected at the −435, −295, and −271 CpG sites of CTIF, and at the −505 to −341 region in the promoter of DDR2. In the promoter region of NXT2, only one CpG site located at −432 was differentially unmethylated in APP-sw cells. Thus, we demonstrated the effect of the APP-sw mutation on alteration of DNA methylation and subsequent gene expression. This epigenetic regulatory mechanism may contribute to the pathogenesis of AD.

  9. Computation of 3D neutron fluxes in one pin hexagonal cell

    International Nuclear Information System (INIS)

    Prabha, Hem; Marleau, Guy

    2013-01-01

    Highlights: ► Computations of 3D neutron fluxes in one pin hexagonal cell is performed by Carlvik’s method of collision probability. ► Carlvik’s method requires computation of track lengths in the geometry. ► Equations are developed to compute tracks, in 2D and 3D, in hexagons and are implemented in a program HX7. ► The program HX7 is implemented in NXT module of the code DRAGON, where tracks in pins are computed. ► The tracks are plotted and fluxes are compared with the EXCELT module of the code DRAGON. - Abstract: In this paper we are presenting the method of computation of three dimensional (3D) neutron fluxes in one pin hexagonal cell. Carlvik’s collision probability method of solving neutron transport equation for computing fluxes has been used here. This method can consider exact geometrical details of the given geometry. While using this method, track length computations are required to be done. We have described here the method of computing tracks in one 3D hexagon. A program HX7 has been developed for this purpose. This program has been implemented in the NXT module of the code DRAGON, where tracks in the pins are computed. For computing tracks in 3D, first we use the tracks computed in the two dimensions (2D) and then we project them in the third dimension. We have developed equations for this purpose. In both the regions, fuel pin as well as in the moderator surrounding the pin the fluxes are assumed to be uniform. A uniform source is assumed in the moderator region. Reflecting boundary conditions are applied on all the sides as well as on the top and bottom surfaces. One group 2D and 3D fluxes are compared with the respective results obtained by the EXCELT module of DRAGON. To check the computations, tracks are plotted and errors in the computations are obtained. It is observed by using both the modules EXCELT and NXT that the fluxes in the pins converge faster and in the moderator region fluxes converge very slowly

  10. Optical technology: a new generation of instrument transformer

    Energy Technology Data Exchange (ETDEWEB)

    Klimek, A.

    2003-07-01

    The advantages of optical sensors to measure current and voltage are discussed. They combine the typical benefits of high accuracy, wide dynamic range, high bandwidth, reduced weight and size, safety and low maintenance, with the environmental benefits derived from not using SF{sub 6} or oil paper insulation. Fibre-optic based current and voltage sensors such as the NxtPhase NXVCT voltage and current sensor, are an increasingly vital part of measurement and control systems installed by utilities throughout North America. With an inherently digital signal, optical sensors are capable of being utilized in ways that are not possible with analog signals; they make possible an all-encompassing digital substation with digital communication between voltage and current sensors, relays, SCADA functions, breakers and switches.

  11. The Equilibrium and Pre-equilibrium Triton Emission Spectra of Some Target Nuclei for ( n, xt) Reactions up to 45 MeV Energy

    Science.gov (United States)

    Tel, E.; Kaplan, A.; Aydın, A.; Özkorucuklu, S.; Büyükuslu, H.; Yıldırım, G.

    2010-08-01

    Although there have been significant research and development studies on the inertial and magnetic fusion reactor technology, there is still a long way to go to penetrate commercial fusion reactors to the energy market. Tritium self-sufficiency must be maintained for a commercial power plant. For self-sustaining (D-T) fusion driver tritium breeding ratio should be greater than 1.05. So, working out the systematics of ( n,t) reaction cross sections and triton emission differential data are important for the given reaction taking place on various nuclei at different energies. In this study, ( n,xt) reactions for some target nuclei as 16O, 27Al, 59Co and 209Bi have been investigated up to 45 MeV incident neutron energy. In the calculations of the triton emission spectra, the pre-equilibrium and equilibrium effects have been used. The calculated results have been compared with the experimental data taken from the literature.

  12. Qualification, monitoring, and integration into a production environment of the world's first fully programmable illuminator

    Science.gov (United States)

    McIntyre, Gregory; Corliss, Daniel; Groenendijk, Remco; Carpaij, Rene; van Niftrik, Ton; Landie, Guillaume; Tamura, Takao; Pepin, Thomas; Waddell, James; Woods, Jerry; Robinson, Chris; Tian, Kehan; Johnson, Richard; Halle, Scott; Kim, Ryoung-Han; Mclellan, Erin; Kato, Hirokazu; Scaduto, Anthony; Maier, Carl; Colburn, Matt

    2011-04-01

    This paper will describe the development, qualification, monitoring, and integration into a production environment of the world's first fully programmable illuminator for optical lithography. FlexRay TM, a programmable illuminator based on a MEMs multi-mirror array that was developed for TWINSCAN XT:19x0i and TWINSCAN NXT series ASML immersion scanners, was first installed in January 2010 at Albany Nanotech, with subsequent tools installed in IBM's East Fishkill Manufacturing facility. After a brief overview of the concept and benefits of FlexRay, this paper will provide a comprehensive assessment of its reliability and imaging performance. A CD-based pupil qualification (CDPQ) procedure will be introduced and shown to be an efficient and effective way to monitor pupil performance. Various CDPQ and in-resist measurement results will be described, offering convincing evidence that FlexRay reliably generates high-quality pupils and is well suited for high volume manufacturing at lithography's leading edge.

  13. [Validation of the Omron HEM-650 wrist blood pressure device using the British Hypertension Society protocol in emergency patients in Hong Kong].

    Science.gov (United States)

    Hung, Kevin KC; Lai, W Y; Cocks, Robert A; Rainer, Timothy H; Graham, Colin A

    2015-10-01

    Automated wrist cuff blood pressure (BP) devices are more compact and easier to use, particularly when access to the upper arm is restricted, for example in emergencies. We tested the Omron HEM-650 wrist device using the validation criteria of the British Hypertension Society (BHS) protocol in a major emergency department (ED) in Hong Kong. 85 patients had three measurements each by both the Omron HEM-650 wrist device and the mercury sphygmomanometer. The conventional automated BP with arm cuff was also measured using an oscillometric (Colin BP-88S NXT) device for comparison. The Omron HEM-650 achieved a grade B for both systolic and diastolic BP and demonstrated acceptable accuracy and reliability in Chinese patients in the emergency setting. The Omron HEM 650 wrist device can be recommended for use in adult emergency patients. Further research is warranted for its use in pregnant women and critically ill patients.

  14. Circulation of authorizations - Authority as a material and processuel configuration

    DEFF Research Database (Denmark)

    Benjaminsen, Nana

    Despret's (2004) notion ‘making available' will be used to unfold new propositions and boundaries of authority in the fluid movable landscape of computer enhanced learning. In the second part of the paper, I will advocate that circulations of authorizations occur. When expectations are fulfilled...... the possibility of building objects with Lego bricks in combinations with engines and sensors, and to control their creation through a computer program.   In the example, this paper addresses, children and lego boxes were distributed to different computer workstations in two connected rooms. Electronic devises......, children, half build robots and teachers were more or less constantly moving, and circulating in the two classrooms. I argue that this is challenging what in common practise would be called the teacher's authority. Through the empirical example provided, and in line with the sociomaterial engagement...

  15. DNA extraction and barcode identification of development stages of forensically important flies in the Czech Republic.

    Science.gov (United States)

    Olekšáková, Tereza; Žurovcová, Martina; Klimešová, Vanda; Barták, Miroslav; Šuláková, Hana

    2018-04-01

    Several methods of DNA extraction, coupled with 'DNA barcoding' species identification, were compared using specimens from early developmental stages of forensically important flies from the Calliphoridae and Sarcophagidae families. DNA was extracted at three immature stages - eggs, the first instar larvae, and empty pupal cases (puparia) - using four different extraction methods, namely, one simple 'homemade' extraction buffer protocol and three commercial kits. The extraction conditions, including the amount of proteinase K and incubation times, were optimized. The simple extraction buffer method was successful for half of the eggs and for the first instar larval samples. The DNA Lego Kit and DEP-25 DNA Extraction Kit were useful for DNA extractions from the first instar larvae samples, and the DNA Lego Kit was also successful regarding the extraction from eggs. The QIAamp DNA mini kit was the most effective; the extraction was successful with regard to all sample types - eggs, larvae, and pupari.

  16. The hunting season’s over

    CERN Document Server

    2014-01-01

    Hundreds of Internet users from across the globe have been scouring the Computer Centre for LEGO figurines in recent weeks (see here). The time has come to announce the results…   We’ve received nearly 5,000 screen-shots, the precious trophies gleaned from hours of virtual scavenging through the CERN Computing Centre, and we’re pleased to see our hunt raised so much interest. Unfortunately, rules being rules, we have to choose the two winners by drawing lots, so prizes will be winging their way to… Sarah Charley (CERN) Stefan Hayes We kindly thank everyone who took part in the hunt with so much gusto and hope you all had as much fun as we did! You can discover all the figurines here: http://lego-scavenger-hunt.web.cern.ch/ The CERN Bulletin team

  17. ANALYSIS OF THE GAZE BEHAVIOUR OF THE WORKER ON THE CARBURETOR ASSEMBLY TASK

    Directory of Open Access Journals (Sweden)

    Novie Susanto

    2015-06-01

    Full Text Available This study presents analysis of the area of interest (AOI and the gaze behavior of human during assembly task. This study aims at investigating the human behavior in detail using an eye‐tracking system during assembly task using LEGO brick and an actual manufactured product, a carburetor. An analysis using heat map data based on the recorded videos from the eye-tracking system is taken into account to examine and investigate the gaze behavior of human. The results of this study show that the carburetor assembly requires more attention than the product made from LEGO bricks. About 50% of the participants experience the necessity to visually inspect the interim state of the work object during the simulation of the assembly sequence on the screen. They also show the tendency to want to be more certain about part fitting in the actual work object.

  18. Using Analogy Role-Play Activity in an Undergraduate Biology Classroom to Show Central Dogma Revision

    Science.gov (United States)

    Takemura, Masaharu; Kurabayashi, Mario

    2014-01-01

    For the study of biology in an undergraduate classroom, a classroom exercise was developed: an analogy role-play to learn mechanisms of gene transcription and protein translation (central dogma). To develop the central dogma role-play exercise, we made DNA and mRNA using paper sheets, tRNA using a wire dress hanger, and amino acids using Lego®…

  19. Fostering Innovation Through Robotics Exploration

    Science.gov (United States)

    2015-06-01

    person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number...Certification (REC) for the LEGO and VEX hardware platforms. The certification test measures content knowledge as well as a teacher’s pedagogical ...projects this revenue stream will increase significantly as more teachers and students become aware of the software. Expedition Atlantis App – Currently

  20. The Algebra Artist

    Science.gov (United States)

    Beigie, Darin

    2014-01-01

    Most people who are attracted to STEM-related fields are drawn not by a desire to take mathematics tests but to create things. The opportunity to create an algebra drawing gives students a sense of ownership and adventure that taps into the same sort of energy that leads a young person to get lost in reading a good book, building with Legos®,…

  1. Discrete Event Simulation for the Analysis of Artillery Fired Projectiles from Shore

    Science.gov (United States)

    2017-06-01

    model. 2.1 Discrete Event Simulation with Simkit Simkit is a library of classes and interfaces, written in Java , that support ease of implemen- tation...Simkit allows simulation modelers to break complex systems into components through a framework of Listener Event Graph Objects (LEGOs), described in...Classes A disadvantage to using Java Enum Types is the inability to change the values of Enum Type parameters while conducting a designed experiment

  2. Estimating discharge from the Godavari river using ENVISAT, Jason-2, and SARAL/AltiKa radar altimeters

    Digital Repository Service at National Institute of Oceanography (India)

    Sridevi, T.; Sharma, Rashmi; Mehra, P.; Prasad, K.V.S.R.

    ://www.legos.obs-mip.fr/soa/hydrologie/hydroweb), U.S. Department of Agriculture's Foreign Agricultural Service (http://www.pecad.fas.usda.gov/cropexplorer/global_reservoir), and European Space Agency and De Montfort University River and Lake Project (http... has been established between river heights and in-situ discharge with high correlation and from Fig. 7, it was already observed a good correlation between the altimetry river heights and in-situ heights, the comparison could therefore be extended...

  3. The Lexicographic Treatment of Days in Sepedi, or When Mother ...

    African Journals Online (AJOL)

    rbr

    šupetšwa ka karolwana e tee ya direrwa tša PyaSsaL, e lego matšatši a beke. .... The latter point can be illustrated with an example taken from the Collins ...... Finally, the loanword Sabatha is used in the Bible and just one other book. ..... Kriel, Theunis J., D.J. Prinsloo and Bethuel P. Sathekge. ... Sinclair, John M. (Ed.).

  4. Theory of hard diffraction and rapidity gaps

    International Nuclear Information System (INIS)

    Del Duca, V.

    1995-06-01

    In this talk we review the models describing the hard diffractive production of jets or more generally high-mass states in presence of rapidity gaps in hadron-hadron and lepton-hadron collisions. By rapidity gaps we mean regions on the lego plot in (pseudo)-rapidity and azimuthal angle where no hadrons are produced, between the jet(s) and an elastically scattered hadron (single hard diffraction) or between two jets (double hard diffraction). (orig.)

  5. GOSPODARSKA KONKURENČNOST SAVINJSKE REGIJE

    OpenAIRE

    Povh, Helena

    2011-01-01

    V diplomski nalogi so primerjane socialno-ekonomske spremembe v regiji po letu 1991 in njihov vpliv na konkurenčnost gospodarstva. Savinjska regija ima prehodno lego v Sloveniji in v Evropi. Naravnogeografsko jo zaznamuje krajinska pestrost in s tem velik turistični potencial. Gostota poselitve je nadpovprečna, demografska struktura je ugodna. Regijsko gospodarstvo so zaznamovale številne spremembe, kot posledica svetovnih gospodarskih trendov s prehodom v postindustrijsko družbo. Osamosvojit...

  6. Education of employees

    OpenAIRE

    Malachová, Jana

    2011-01-01

    The thesis aims to assess the functioning of educational methods that is being used by LEGO Group and propose appropriate measures or recommendations for future development. The conclusion of this work is evaluating the results of the investigation and provides recommendations counter measures to improve the current situation. The theoretical part describes principles of systematic employee training, forms and methods of education, also it further defines the learning organization. Part of th...

  7. Performing mathematics activities with non-standard units of measurement using robots controlled via speech-generating devices: three case studies.

    Science.gov (United States)

    Adams, Kim D; Cook, Albert M

    2017-07-01

    Purpose To examine how using a Lego robot controlled via a speech-generating device (SGD) can contribute to how students with physical and communication impairments perform hands-on and communicative mathematics measurement activities. This study was a follow-up to a previous study. Method Three students with cerebral palsy used the robot to measure objects using non-standard units, such as straws, and then compared and ordered the objects using the resulting measurement. Their performance was assessed, and the manipulation and communication events were observed. Teachers and education assistants were interviewed regarding robot use. Results Similar benefits to the previous study were found in this study. Gaps in student procedural knowledge were identified such as knowing to place measurement units tip-to-tip, and students' reporting revealed gaps in conceptual understanding. However, performance improved with repeated practice. Stakeholders identified that some robot tasks took too long or were too difficult to perform. Conclusions Having access to both their SGD and a robot gave the students multiple ways to show their understanding of the measurement concepts. Though they could participate actively in the new mathematics activities, robot use is most appropriate in short tasks requiring reasonable operational skill. Implications for Rehabilitation Lego robots controlled via speech-generating devices (SGDs) can help students to engage in the mathematics pedagogy of performing hands-on activities while communicating about concepts. Students can "show what they know" using the Lego robots, and report and reflect on concepts using the SGD. Level 1 and Level 2 mathematics measurement activities have been adapted to be accomplished by the Lego robot. Other activities can likely be accomplished with similar robot adaptations (e.g., gripper, pen). It is not recommended to use the robot to measure items that are long, or perform measurements that require high

  8. I Show You How I Like You: Emotional Human-Robot Interaction through Facial Expression and Tactile Stimulation

    DEFF Research Database (Denmark)

    Canamero, Dolores; Fredslund, Jacob

    2001-01-01

    We report work on a LEGO robot that displays different emotional expressions in response to physical stimulation, for the purpose of social interaction with humans. This is a first step toward our longer-term goal of exploring believable emotional exchanges to achieve plausible interaction...... with a simple robot. Drawing inspiration from theories of human basic emotions, we implemented several prototypical expressions in the robot's caricatured face and conducted experiments to assess the recognizability of these expressions...

  9. Clustering for Different Scales of Measurement - the Gap-Ratio Weighted K-means Algorithm

    OpenAIRE

    Guérin, Joris; Gibaru, Olivier; Thiery, Stéphane; Nyiri, Eric

    2017-01-01

    This paper describes a method for clustering data that are spread out over large regions and which dimensions are on different scales of measurement. Such an algorithm was developed to implement a robotics application consisting in sorting and storing objects in an unsupervised way. The toy dataset used to validate such application consists of Lego bricks of different shapes and colors. The uncontrolled lighting conditions together with the use of RGB color features, respectively involve data...

  10. Ultimate Atomic Bling: Nanotechnology of Diamonds

    International Nuclear Information System (INIS)

    Dahl, Jeremy

    2010-01-01

    Diamonds exist in all sizes, from the Hope Diamond to minuscule crystals only a few atoms across. The smallest of these diamonds are created naturally by the same processes that make petroleum. Recently, researchers discovered that these 'diamondoids' are formed in many different structural shapes, and that these shapes can be used like LEGO blocks for nanotechnology. This talk will discuss the discovery of these nano-size diamonds and highlight current SLAC/Stanford research into their applications in electronics and medicine.

  11. LEGO® bricks as building blocks for centimeter-scale biological environments: the case of plants.

    Directory of Open Access Journals (Sweden)

    Kara R Lind

    Full Text Available LEGO bricks are commercially available interlocking pieces of plastic that are conventionally used as toys. We describe their use to build engineered environments for cm-scale biological systems, in particular plant roots. Specifically, we take advantage of the unique modularity of these building blocks to create inexpensive, transparent, reconfigurable, and highly scalable environments for plant growth in which structural obstacles and chemical gradients can be precisely engineered to mimic soil.

  12. Hat cycle dynamic simulation

    International Nuclear Information System (INIS)

    Trucco, A.; Corallo, C.; Pini Prato, A.; Porro, S.

    1999-01-01

    Among the innovative cycle recently proposed in literature, the Humid Air Turbine Cycle - Hat better seems to fulfil the main energy market requirements of today: High efficiency in a large power ranger, low pollution, low specific capital cost. The previous results of an analysis at partial load and transient conditions are here presented, where the Hat plant has been simulated using the original model implemented in LEGO environment [it

  13. Management consulting. Ein neuer Weg der angewandten Sozial- und Wirtschaftsgeographie - Legoland Deutschland = Management consulting. The new way of applied social- and economic geography – LEGOLAND Germany

    Directory of Open Access Journals (Sweden)

    Klaus Kellner

    2006-01-01

    Full Text Available The decision of the LEGO group, to build itsfourth LEGOLAND amusement park in the Bavarian Swabian district Günzburg, has created a challenging situation for the regional politicians. With the help of the new consulting approach "Municipal Profiling", the future oriented development of the Günzburg district, was firstly clearly planned and secondly consequently enforced. The motto for the future oriented development of the district is: "District Günzburg - The Family And Children Region."

  14. LEGO® bricks as building blocks for centimeter-scale biological environments: the case of plants.

    Science.gov (United States)

    Lind, Kara R; Sizmur, Tom; Benomar, Saida; Miller, Anthony; Cademartiri, Ludovico

    2014-01-01

    LEGO bricks are commercially available interlocking pieces of plastic that are conventionally used as toys. We describe their use to build engineered environments for cm-scale biological systems, in particular plant roots. Specifically, we take advantage of the unique modularity of these building blocks to create inexpensive, transparent, reconfigurable, and highly scalable environments for plant growth in which structural obstacles and chemical gradients can be precisely engineered to mimic soil.

  15. Theory of hard diffraction and rapidity gaps

    International Nuclear Information System (INIS)

    Del Duca, V.

    1996-01-01

    In this talk we review the models describing the hard diffractive production of jets or more generally high-mass states in presence of rapidity gaps in hadron-hadron and lepton-hadron collisions. By rapidity gaps we mean regions on the lego plot in (pseudo)-rapidity and azimuthal angle where no hadrons are produced, between the jet(s) and an elastically scattered hadron (single hard diffraction) or between two jets (double hard diffraction). copyright 1996 American Institute of Physics

  16. Información, autoayuda y creación de identidades: las tecnologías de la información y la comunicación (TIC y las asociaciones de discapacitados físicos. El ejemplo de la poliomielitis

    Directory of Open Access Journals (Sweden)

    Rosa Ballester

    2011-01-01

    criterios de credibilidad (r de Pearson = 0,81, p<0,001, por lo que se sugiere el Indicador de Credibilidad como una herramienta útil para determinar la calidad de las páginas web. Su uso debe complementarse con otro tipo de acercamientos cualitativos que exploren el contexto de las relaciones expertos-legos y las funciones que dichas páginas cumplen.

  17. Sprego programming

    OpenAIRE

    Csernoch, Mária; Biró, Piroska

    2015-01-01

    Spreadsheet management is a border-land between office applications and programming, however, it is rather communicated that spreadsheet is nothing more than an easily handled fun piece. Consequently, the complexity of spreadsheet handling, the unprepared end-users, their problem solving abilities and approaches do not match. To overcome these problems we have developed and introduced Sprego (Spreadsheet Lego). Sprego is a simplified functional programming language in spreadsheet environment,...

  18. Adapting a robotics program to enhance participation and interest in STEM among children with disabilities: a pilot study.

    Science.gov (United States)

    Lindsay, Sally; Hounsell, Kara Grace

    2017-10-01

    Youth with disabilities are under-represented in science, technology, engineering, and math (STEM) in school and in the workforce. One encouraging approach to engage youth's interest in STEM is through robotics; however, such programs are mostly for typically developing youth. The purpose of this study was to understand the development and implementation of an adapted robotics program for children and youth with disabilities and their experiences within it. Our mixed methods pilot study (pre- and post-workshop surveys, observations, and interviews) involved 41 participants including: 18 youth (aged 6-13), 12 parents and 11 key informants. The robotics program involved 6, two-hour workshops held at a paediatric hospital. Our findings showed that several adaptations made to the robotics program helped to enhance the participation of children with disabilities. Adaptations addressed the educational/curriculum, cognitive and learning, physical and social needs of the children. In regards to experiences within the adapted hospital program, our findings highlight that children enjoyed the program and learned about computer programming and building robots. Clinicians and educators should consider engaging youth with disabilities in robotics to enhance learning and interest in STEM. Implications for Rehabilitation Clinicians and educators should consider adapting curriculum content and mode of delivery of LEGO ® robotics programs to include youth with disabilities. Appropriate staffing including clinicians and educators who are knowledgeable about youth with disabilities and LEGO ® robotics are needed. Clinicians should consider engaging youth with disabilities in LEGO ® to enhance learning and interest in STEM.

  19. Challenges in Developing XML-Based Learning Repositories

    Science.gov (United States)

    Auksztol, Jerzy; Przechlewski, Tomasz

    There is no doubt that modular design has many advantages, including the most important ones: reusability and cost-effectiveness. In an e-leaming community parlance the modules are determined as Learning Objects (LOs) [11]. An increasing amount of learning objects have been created and published online, several standards has been established and multiple repositories developed for them. For example Cisco Systems, Inc., "recognizes a need to move from creating and delivering large inflexible training courses, to database-driven objects that can be reused, searched, and modified independent of their delivery media" [6]. The learning object paradigm of education resources authoring is promoted mainly to reduce the cost of the content development and to increase its quality. A frequently used metaphor of Learning Objects paradigm compares them to Lego Logs or objects in Object-Oriented program design [25]. However a metaphor is only an abstract idea, which should be turned to something more concrete to be usable. The problem is that many papers on LOs end up solely in metaphors. In our opinion Lego or OO metaphors are gross oversimplificatation of the problem as there is much easier to develop Lego set or design objects in OO program than develop truly interoperable, context-free learning content1.

  20. Development and evaluation of a phantom for multi-purpose dosimetry in intensity-modulated radiation therapy

    International Nuclear Information System (INIS)

    Jeong, Hae Sun; Kim, Chan Hyeong; Park, Joo Hwan; Han, Young Yih; Kum, O Yeon

    2011-01-01

    A LEGO-type multi-purpose dosimetry phantom was developed for intensity-modulated radiation therapy (IMRT), which requires various types of challenging dosimetry. Polystyrene, polyethylene, polytetrafluoroethylene (PTFE), and polyurethane foam (PU-F) were selected to represent muscle, fat, bone, and lung tissue, respectively, after considering the relevant mass densities, elemental compositions, effective atomic numbers, and photon interaction coefficients. The phantom, which is composed of numerous small pieces that are similar to LEGO blocks, provides dose and dose distribution measurements in homogeneous and heterogeneous media. The phantom includes dosimeter holders for several types of dosimeters that are frequently used in IMRT dosimetry. An ion chamber and a diode detector were used to test dosimetry in heterogeneous media under radiation fields of various sizes. The data that were measured using these dosimeters were in disagreement when the field sizes were smaller than 1.5 x 1.5 cm 2 for polystyrene and PTFE, or smaller than 3 x 3 cm 2 for an air cavity. The discrepancy was as large as 41% for the air cavity when the field size was 0.7 x 0.7 cm 2 , highlighting one of the challenges of IMRT small field dosimetry. The LEGO-type phantom is also very useful for two-dimensional dosimetry analysis, which elucidates the electronic dis-equilibrium phenomena on or near the heterogeneity boundaries

  1. Build Your Own Particle Detector

    CERN Document Server

    Mehlhase, Sascha; The ATLAS collaboration

    2016-01-01

    To support the outreach activities of Atlas institutes and to grab people's attention in science exhibitions and during public events, we have created both a very detailed model of the experiment built entirely out of about Lego bricks as well as an outreach programme using Lego bricks to get people to think about particle detectors and involve them into a conversation about particle physics in general. A large Lego model, consisting of about 9500 pieces, has been 'exported' to more than 55 Atlas institutes and has been used in numerous exhibitions to explain the proportion and composition of the experiment to the public. As part of 'Build Your Own Particle Detector' programme (byopd.org) we conducted more than 15 events,either involving a competition to design and build the 'best' particle detector from a random pile of pieces or to take part in the construction of one of the large models, as part of a full day outreach event. Recently we've added miniature models of all four LHC experiments, that will be us...

  2. Development and evaluation of a phantom for multi-purpose dosimetry in intensity-modulated radiation therapy

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Hae Sun; Kim, Chan Hyeong [Hanyang University, Seoul (Korea, Republic of); Park, Joo Hwan [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of); Han, Young Yih [Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Kum, O Yeon [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    2011-08-15

    A LEGO-type multi-purpose dosimetry phantom was developed for intensity-modulated radiation therapy (IMRT), which requires various types of challenging dosimetry. Polystyrene, polyethylene, polytetrafluoroethylene (PTFE), and polyurethane foam (PU-F) were selected to represent muscle, fat, bone, and lung tissue, respectively, after considering the relevant mass densities, elemental compositions, effective atomic numbers, and photon interaction coefficients. The phantom, which is composed of numerous small pieces that are similar to LEGO blocks, provides dose and dose distribution measurements in homogeneous and heterogeneous media. The phantom includes dosimeter holders for several types of dosimeters that are frequently used in IMRT dosimetry. An ion chamber and a diode detector were used to test dosimetry in heterogeneous media under radiation fields of various sizes. The data that were measured using these dosimeters were in disagreement when the field sizes were smaller than 1.5 x 1.5 cm{sup 2} for polystyrene and PTFE, or smaller than 3 x 3 cm{sup 2} for an air cavity. The discrepancy was as large as 41% for the air cavity when the field size was 0.7 x 0.7 cm{sup 2}, highlighting one of the challenges of IMRT small field dosimetry. The LEGO-type phantom is also very useful for two-dimensional dosimetry analysis, which elucidates the electronic dis-equilibrium phenomena on or near the heterogeneity boundaries

  3. Computer literacy: insufficient for digital age literacy learners

    CSIR Research Space (South Africa)

    Beyers, RN

    2010-07-01

    Full Text Available with disadvantaged counterparts where the groups are introduced to the world of programming through the use of Lego • FabKids – developing high productivity skills in a high-tech rapid-prototyping environment of a FabLab • Fab Teachers – the principles of Fab...Kids are applied to Fab Teachers with the only difference being that participants are exposed the pedagogy of the Design Process • Information Leadership Conferences – encouraging teachers to become knowledge producers and to share best practices within...

  4. Candidate for a Z boson decaying into leptons, produced in association with jets and collected at the ATLAS Experiment

    CERN Multimedia

    ATLAS, Experiment

    2014-01-01

    Candidate for Z→μμ decay, with the Z produced in association with three jets, collected on 10 May 2010. In the xy projection, the 144 GeV transverse momentum of the Z boson is especially apparent. The muon transverse momenta are 96 GeV and 68 GeV, and their invariant mass is 79 GeV. The harder muon has left a significant energy deposit (see lego-plot projection), presumably through bremsstrahlung; this is not included in the standard Z mass calculation. The jet transverse energies are 168, 105, and 45 GeV.

  5. Production of short straight sections hits 100 units

    CERN Multimedia

    2005-01-01

    The 100th short straight section for the Large Hadron Collider was assembled at CERN at the beginning of April. These units combine superconducting quadrupoles and other multipole corrector magnets, housed in their cryostats, which are used to guide, focus and fine-tune the beam in the LHC. Building 904, where the 474 short straight sections are being assembled, is often called "Lego Land" by the workers, with a touch of humor and pride because of the wide variety of these sets of magnets and cryostats .

  6. Silent game as Model for Examining Student Online Creativity - Preliminary Results from an Experiment

    DEFF Research Database (Denmark)

    Sørensen, Jannick Kirk

    2016-01-01

    The ERASMUS+ project “OnCreate” aims at improving online mediated creative collaboration among students. But what are the differences between collaboration online and in a face-to-face setting in terms of creative processes? Theories on media richness and collaborative creativity can provide...... the creative dialogues developed through a very constrained communicative environment. The participants could only communicate their creative ideas by placing standard LEGO bricks on a plate. No talking or any other communication was allowed. The game used in the experiment is an adoption of the so...

  7. The Teams from Building 904 celebrated the assembly of the 100th short straight section on 11 April

    CERN Multimedia

    Patrice Loiez

    2005-01-01

    The 100th short straight section for the Large Hadron Collider was assembled at CERN at the beginning of April. These units combine superconducting quadrupoles and other multipole corrector magnets, housed in their cryostats, which are used to guide, focus and fine-tune the beam in the LHC. Building 904, where the 474 short straight sections are being assembled, is often called "Lego Land" by the workers, with a touch of humor and pride because of the wide variety of these sets of magnets and cryostats

  8. Predicting the future and learning from the past

    DEFF Research Database (Denmark)

    Abell, Anne Færge

    Investments in information technology are significant and seem to follow an ever-increasing trend in modern companies in general and in the LEGO Group specifically. Projects take up a substantial amount of the human and financial resources spent on IT – and for good reason: the project portfolio...... uncertainty but high urgency. The study showed that the organization takes a structured approach to evaluating success and is relatively successful compared to the results reported in academia in general, but the study also revealed areas for improvement. The most fundamental is, perhaps, that the link...

  9. Implementing Product Platforms: A Case Study

    DEFF Research Database (Denmark)

    Nielsen, Ole Fiil; Mortensen, Niels Henrik

    2006-01-01

    The paper describes a case study dealing with the process of creating and implementing a product platform. The paper espessially deals with the fact that to obtain the benefits of platforms a permanent change in behaviour in product development must be ensured. This change in behaviour requires...... acceptance and approval from the organisation in general and the commitment from management to enforce agreed-upon decisions. The case study itself was performed in the Danish company LEGO Group. The case study had two objectives: To create a technical architecture and align this architecture...

  10. Responsiveness and flexibility in a Decentralized Supply Chain

    DEFF Research Database (Denmark)

    Petersen, Kristian Rasmus; Bilberg, Arne; Hadar, Ronen

    Today’s supply chains are not capable of managing the instabilities that is the case in the market. Instead, there is a need to develop supply chains that are capable of adapting to changes. Through a case study of LEGO, the authors suggest a possible solution: a decentralized supply chain serving...... independent and self-sufficient local factories. The decentralized supply chain is provided with materials, parts and pre-assembled elements from local suppliers and supplies the local market in return. Keywords: Decentralize, Responsiveness, Flexibility...

  11. Platform development supportedby gaming

    DEFF Research Database (Denmark)

    Mikkola, Juliana Hsuan; Hansen, Poul H. Kyvsgård

    2007-01-01

    The challenge of implementing industrial platforms in practice can be described as a configuration problem caused by high number of variables, which often have contradictory influences on the total performance of the firm. Consequently, the specific platform decisions become extremely complex......, possibly increasing the strategic risks for the firm. This paper reports preliminary findings on platform management process at LEGO, a Danish toy company.  Specifically, we report the process of applying games combined with simulations and workshops in the platform development. We also propose a framework...

  12. (In)tangible Arguments about Play, Creativity, and the Political Economy of 3D Printing: The Free Universal Construction Kit

    DEFF Research Database (Denmark)

    Hansen, Lone Koefoed; Stephensen, Jan Løhmann

    2015-01-01

    With the increasing economic accessibility of 3D printers, the lessons learned and the logics cultivated on digital Web 2.0 now seem applicable to the world of material things. Released in early 2012 by the artist groups F.A.T. and Sy-lab, the Free Universal Construction Kit is a set of 3D drawings...... that enable everyone with access to a 3D printer to make connectors between intellectual property restricted toys like LEGO, Tinkertoys, and Fischertechnik. However, when describing this project as “reverse engineering as a civic activity”, it becomes obvious that the Kit’s greater agenda is not just...

  13. Medium for Children’s Creativity

    DEFF Research Database (Denmark)

    Borum, Nanna; Kristensen, Kasper; Petersson, Eva

    2014-01-01

    This paper reports on an exploratory study that investigates 16 elementary school children’s interaction with two different mediums for creativity, LEGO® bricks and paper collages, drawing on the previous creativity assessment test carried out by Amabile [1]. The study is based in a playful...... on labor when working with LEGO bricks. It was also evident that the children assigned preconceived affordances to the two mediums. The results from this study should feed into to a technology enhanced playful learning environment and these are the initial steps in the design process....

  14. Silva. EDF two-phase 1D annular model of a CFB boiler furnace

    Energy Technology Data Exchange (ETDEWEB)

    Montat, D.; Fauquet, Ph. [Electricite de France (EDF), 78 - Chatou (France). Researckh and Development Div.; Lafanechere, L.; Bursi, J.M. [Electricite de France (EDF) (France). Construction Div.

    1997-01-01

    SILVA computer code is used for the modelling of the thermal-hydraulics and of the combustion of a coal-fired CFBC solid loop. In a first step, only the furnace is considered. The model is based on a 1D annular two phases description of the hydrodynamics. The model is based on particle mass balances and pressure drop calculations. A basic combustion model is incorporated into this model. The coal combustion is divided in two phases, the combustion of volatile matter and the heterogeneous combustion. The model has been developed within LEGO software and can be included into the global model of the solid loop developed by EDF. (author) 26 refs.

  15. Ultimate Atomic Bling: Nanotechnology of Diamonds

    Energy Technology Data Exchange (ETDEWEB)

    Dahl, Jeremy

    2010-05-25

    Diamonds exist in all sizes, from the Hope Diamond to minuscule crystals only a few atoms across. The smallest of these diamonds are created naturally by the same processes that make petroleum. Recently, researchers discovered that these 'diamondoids' are formed in many different structural shapes, and that these shapes can be used like LEGO blocks for nanotechnology. This talk will discuss the discovery of these nano-size diamonds and highlight current SLAC/Stanford research into their applications in electronics and medicine.

  16. Traction Control Study for a Scaled Automated Robotic Car

    OpenAIRE

    Morton, Mark A.

    2004-01-01

    This thesis presents the use of sliding mode control applied to a 1/10th scale robotic car to operate at a desired slip. Controlling the robot car at any desired slip has a direct relation to the amount of force that is applied to the driving wheels based on road surface conditions. For this model, the desired traction/slip is maintained for a specific surface which happens to be a Lego treadmill platform. How the platform evolved and the robot car was designed are also covered. To parame...

  17. Management consulting. Ein neuer Weg der angewandten Sozial- und Wirtschaftsgeographie - Legoland Deutschland

    Directory of Open Access Journals (Sweden)

    Klaus Kellner

    2006-12-01

    Full Text Available The decision of the LEGO group, to build its fourth LEGOLAND amusement park in the Bavarian Swabian district Günzburg, has created a challenging situation for the regional politicians. With the help of the new consulting approach “Municipal Profiling,” the future oriented development of the Günzburg district, was firstly clearly planned and secondly consequently enforced. The motto for the future oriented development of the district is: “District Günzburg – The Family And Children Region.”

  18. TRACKING SIMULATIONS NEAR HALF-INTEGER RESONANCE AT PEP-II

    International Nuclear Information System (INIS)

    Nosochkov, Yuri

    2003-01-01

    Beam-beam simulations predict that PEP-II luminosity can be increased by operating the horizontal betatron tune near and above a half-integer resonance. However, effects of the resonance and its synchrotron sidebands significantly enhance betatron and chromatic perturbations which tend to reduce dynamic aperture. In the study, chromatic variation of horizontal tune near the resonance was minimized by optimizing local sextupoles in the Interaction Region. Dynamic aperture was calculated using tracking simulations in LEGO code. Dependence of dynamic aperture on the residual orbit, dispersion and β distortion after correction was investigated

  19. Computational tools and lattice design for the PEP-II B-Factory

    International Nuclear Information System (INIS)

    Cai Yunhai; Irwin, John; Nosochkov, Yuri; Yan, Yiton

    1997-01-01

    Several accelerator codes were used to design the PEP-II lattices, ranging from matrix-based codes, such as MAD and DIMAD, to symplectic-integrator codes, such as TRACY and DESPOT. In addition to element-by-element tracking, we constructed maps to determine aberration strengths. Furthermore, we have developed a fast and reliable method (nPB tracking) to track particles with a one-turn map. This new technique allows us to evaluate performance of the lattices on the entire tune-plane. Recently, we designed and implemented an object-oriented code in C++ called LEGO which integrates and expands upon TRACY and DESPOT

  20. Interactive graphics for the CMS experiment at the LHC

    International Nuclear Information System (INIS)

    Taylor, L.

    1996-01-01

    The ability to visualize the CMS detector and its response to physics is of great importance, both in the design evaluation and data analysis phases of the experiment. We describe the visualisation requirements of CMS and the implementation of the CMS interactive detector and event visualisation program, known as CMSCAN, which supports 3D viewing of the detector and events, as well as abstracted images, such as lego plots. It provides a high level of user interactivity, such as rotation, translation magnification, and visibility of the image, and communicates with the reconstruction program to allow the user to control the data processing and analysis. (author)

  1. Simulating supersymmetry at the SSC

    International Nuclear Information System (INIS)

    Barnett, R.M.; Haber, H.E.

    1984-08-01

    Careful study of supersymmetric signatures at the SSC is required in order to distinguish them from Standard Model physics backgrounds. To this end, we have created an efficient, accurate computer program which simulates supersymmetric particle production and decay (or other new particles). We have incorporated the full matrix elements, keeping track of the polarizations of all intermediate states. (At this time hadronization of final-state partons is ignored). Using Monte Carlo techniques this program can generate any desired final-state distribution or individual events for Lego plots. Examples of the results of our study of supersymmetry at SSC are provided

  2. With eyes wide open

    DEFF Research Database (Denmark)

    Frølunde, Lisbeth; Pedersen, Chistina Hee

    2013-01-01

    and that vulnerability and discomfort are often overlooked as transformative forces. The analysis draws on data from a classroom context in which university students tested methods for facilitating creative thinking in a course on data production and creativity. The data stem from a session on the method “Lego Serious...... in constructions of group identity when an external facilitator disrupts a context. We argue that the facilitation of creative methods calls for keeping our eyes wide open for tensions, for they are the mulch that improves the soil....

  3. The Resilience of Analog Tools in Creative Work Practices

    DEFF Research Database (Denmark)

    Borum, Nanna; Petersson, Eva; Frimodt-Møller, Søren

    2014-01-01

    This paper discusses the use of digital and analog tools, respectively, in a creative industry. The research was done within the EU-funded research project IdeaGarden, which explores digital platforms for creative collaboration. The findings in a case study of LEGO® Future Lab, one of LEGO Group......’s largest innovation departments, show a preference for analog tools over digital in the creative process. This points towards a general need for tangible tools in the creative work process, a need that has consequences for the development of new digital tools for creative collaboration....

  4. Spanning organizational boundaries to manage creative processes:

    DEFF Research Database (Denmark)

    Andersen, Poul Houman; Kragh, Hanne; Lettl, Christopher

    2013-01-01

    In order to continue to be innovative in the current fast-paced and competitive environment, organizations are increasingly dependent on creative inputs developed outside their boundaries. The paper addresses the boundary spanning activities that managers undertake to a) select and mobilize...... creative talent, b) create shared identity, and c) combine and integrate knowledge in innovation projects involving external actors. We study boundary spanning activities in two creative projects in the LEGO group. One involves identifying and integrating deep, specialized knowledge, the other focuses...... actors, and how knowledge is integrated across organizational boundaries. We discuss implications of our findings for managers and researchers in a business-to-business context...

  5. Uncertainties and correlations for the 56Fe damage cross sections and spectra averaged quantities based on TENDL-TMC

    International Nuclear Information System (INIS)

    Simakov, S.P.; Konobeyev, A.Yu.; Koning, A.

    2016-01-01

    The goal of this work is a calculation of the covariance matrices for the physical quantities used to characterize the neutron induced radiation damage in the materials. Such quantities usually encompass: the charged particles kinetic energy deposition KERMA (locally deposited nuclear heating), damage energy (to calculate then the number of displaced atoms) and gas production cross sections [(n,xα), (n,xt), (n,xp) … to calculate then transmuting of target nuclei to gases]. The uncertainties and energy-energy or reaction-reaction correlations for such quantities were not assessed so far, whereas the covariances for many underlying cross sections are often presented in the evaluated data libraries. Due to the dependence of damage quantities on many reactions channels, on both total and differential cross sections, and in particular on the energy distribution of reaction recoils, the evaluation of uncertainty is not straightforward. To reach a goal, we used the method based on idea of Total Monte Carlo application to the Nuclear Data. This report summarises the current results for evaluation, validation and representation in the ENDF-6 format of the radiation damage covariances for n + 56 Fe from thermal energy up to 20 MeV. This study was motivated by the IAEA Coordinated Research Project ''Primary Radiation Damage Cross Sections'' and by present dedicated Technical Meeting “Nuclear Reaction Data and Uncertainties for Radiation Damage”

  6. Evolutionary Pattern of N-Glycosylation Sequon Numbers  in Eukaryotic ABC Protein Superfamilies

    Directory of Open Access Journals (Sweden)

    R. Shyama Prasad Rao

    2010-02-01

    Full Text Available Many proteins contain a large number of NXS/T sequences (where X is any amino acid except proline which are the potential sites of asparagine (N linked glycosylation. However, the patterns of occurrence of these N-glycosylation sequons in related proteins or groups of proteins and their underlying causes have largely been unexplored. We computed the actual and probabilistic occurrence of NXS/T sequons in ABC protein superfamilies from eight diverse eukaryotic organisms. The ABC proteins contained significantly higher NXS/T sequon numbers compared to respective genome-wide average, but the sequon density was significantly lower owing to the increase in protein size and decrease in sequon specific amino acids. However, mammalian ABC proteins have significantly higher sequon density, and both serine and threonine containing sequons (NXS and NXT have been positively selected—against the recent findings of only threonine specific Darwinian selection of sequons in proteins. The occurrence of sequons was positively correlated with the frequency of sequon specific amino acids and negatively correlated with proline and the NPS/T sequences. Further, the NPS/T sequences were significantly higher than expected in plant ABC proteins which have the lowest number of NXS/T sequons. Accord- ingly, compared to overall proteins, N-glycosylation sequons in ABC protein superfamilies have a distinct pattern of occurrence, and the results are discussed in an evolutionary perspective.

  7. Structural characterization of the principal mRNA-export factor Mex67–Mtr2 from Chaetomium thermophilum

    Energy Technology Data Exchange (ETDEWEB)

    Aibara, Shintaro; Valkov, Eugene; Lamers, Meindert H. [MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH (United Kingdom); Dimitrova, Lyudmila; Hurt, Ed [Biochemie-Zentrum der Universität Heidelberg, Im Neuenheimer Feld 328, 69120 Heidelberg (Germany); Stewart, Murray, E-mail: ms@mrc-lmb.cam.ac.uk [MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH (United Kingdom)

    2015-06-27

    The crystal structures of the individual domains of the Mex67–Mtr2 complex from C. thermophilum have been determined and their arrangement in solution has been studied by SAXS. Members of the Mex67–Mtr2/NXF–NXT1 family are the principal mediators of the nuclear export of mRNA. Mex67/NXF1 has a modular structure based on four domains (RRM, LRR, NTF2-like and UBA) that are thought to be present across species, although the level of sequence conservation between organisms, especially in lower eukaryotes, is low. Here, the crystal structures of these domains from the thermophilic fungus Chaetomium thermophilum are presented together with small-angle X-ray scattering (SAXS) and in vitro RNA-binding data that indicate that, not withstanding the limited sequence conservation between different NXF family members, the molecules retain similar structural and RNA-binding properties. Moreover, the resolution of crystal structures obtained with the C. thermophilum domains was often higher than that obtained previously and, when combined with solution and biochemical studies, provided insight into the structural organization, self-association and RNA-binding properties of Mex67–Mtr2 that facilitate mRNA nuclear export.

  8. Structural characterization of the principal mRNA-export factor Mex67–Mtr2 from Chaetomium thermophilum

    International Nuclear Information System (INIS)

    Aibara, Shintaro; Valkov, Eugene; Lamers, Meindert H.; Dimitrova, Lyudmila; Hurt, Ed; Stewart, Murray

    2015-01-01

    The crystal structures of the individual domains of the Mex67–Mtr2 complex from C. thermophilum have been determined and their arrangement in solution has been studied by SAXS. Members of the Mex67–Mtr2/NXF–NXT1 family are the principal mediators of the nuclear export of mRNA. Mex67/NXF1 has a modular structure based on four domains (RRM, LRR, NTF2-like and UBA) that are thought to be present across species, although the level of sequence conservation between organisms, especially in lower eukaryotes, is low. Here, the crystal structures of these domains from the thermophilic fungus Chaetomium thermophilum are presented together with small-angle X-ray scattering (SAXS) and in vitro RNA-binding data that indicate that, not withstanding the limited sequence conservation between different NXF family members, the molecules retain similar structural and RNA-binding properties. Moreover, the resolution of crystal structures obtained with the C. thermophilum domains was often higher than that obtained previously and, when combined with solution and biochemical studies, provided insight into the structural organization, self-association and RNA-binding properties of Mex67–Mtr2 that facilitate mRNA nuclear export

  9. EXPERIENCIAS CONSTRUCCIONISTAS CON ROBÓTICA EDUCATIVA EN EL CENTRO INTERNACIONAL DE TECNOLOGÍAS AVANZADAS

    Directory of Open Access Journals (Sweden)

    Kathia Pittí

    2010-02-01

    Full Text Available La tecnología digital en relación a su utilización en el ámbito educativo tienen dos vertientes: la de información y la de construcción. Aunque el énfasis actual, debido a la percepción popular, se inclina a la parte informativa, este trabajo descubre una parte olvidada del potencial que ofrece la tecnología digital como medio de construcción, específicamente la robótica educativa, que por su carácter polivalente y multidisciplinario se sitúa como una herramienta de apoyo al aprendizaje novedosa y necesaria de conocer por las nuevas generaciones.En este sentido, como ejemplo de buenas prácticas presentamos los talleres NXT de robótica del Centro Internacional de Tecnologías Avanzadas, un escenario construccionista de aprendizaje activo y lúdico, que les permite a los participantes mejorar su comprensión de la tecnología, potenciar habilidades y desarrollar la creatividad.

  10. Integrated Context-Aware Driver Assistance System Architecture

    Directory of Open Access Journals (Sweden)

    Elhadi M. Shakshuki

    2013-01-01

    Full Text Available Recently, significant improvements have been made in the area of vehicular communication systems. Furthermore, vehicle-to-vehicle communication is considered a key concept for keeping roads safe. An efficient implementation of these systems is necessary to ensure the safety of driving situations and to reduce the collision rates. This paper proposes a Context-Aware Driver Assistance System that links drivers with the physical environment surrounding them using multiple types of sensors and traffic systems as well as considering the senior driver's difficulties and the system processing time. This is achieved by developing a warning system that assists drivers to avoid collisions and improve their response times. The proposed system architecture consists of a set of components to process the user's request such as parking assistance, and to provide responses and advices when needed. These components include communication, knowledge exchange, knowledge update, and context-history. Also, it includes other processes such as context-history manipulation, hazard detection, and hazard detection control. The main goal of the proposed system is to reduce the number of car accidents and improve driver's decisions. The NXT Robotic environment is used to demonstrate the feasibility of the proposed system.

  11. MIT pebble bed reactor project

    Energy Technology Data Exchange (ETDEWEB)

    Kadak, Andrew C. [Massachusetts Institute of Technology, Cambridge (United States)

    2007-03-15

    The conceptual design of the MIT modular pebble bed reactor is described. This reactor plant is a 250 Mwth, 120 Mwe indirect cycle plant that is designed to be deployed in the near term using demonstrated helium system components. The primary system is a conventional pebble bed reactor with a dynamic central column with an outlet temperature of 900 C providing helium to an intermediate helium to helium heat exchanger (IHX). The outlet of the IHX is input to a three shaft horizontal Brayton Cycle power conversion system. The design constraint used in sizing the plant is based on a factory modularity principle which allows the plant to be assembled 'Lego' style instead of constructed piece by piece. This principle employs space frames which contain the power conversion system that permits the Lego-like modules to be shipped by truck or train to sites. This paper also describes the research that has been conducted at MIT since 1998 on fuel modeling, silver leakage from coated fuel particles, dynamic simulation, MCNP reactor physics modeling and air ingress analysis.

  12. RNAi screening of subtracted transcriptomes reveals tumor suppression by taurine-activated GABAA receptors involved in volume regulation

    Science.gov (United States)

    van Nierop, Pim; Vormer, Tinke L.; Foijer, Floris; Verheij, Joanne; Lodder, Johannes C.; Andersen, Jesper B.; Mansvelder, Huibert D.; te Riele, Hein

    2018-01-01

    To identify coding and non-coding suppressor genes of anchorage-independent proliferation by efficient loss-of-function screening, we have developed a method for enzymatic production of low complexity shRNA libraries from subtracted transcriptomes. We produced and screened two LEGO (Low-complexity by Enrichment for Genes shut Off) shRNA libraries that were enriched for shRNA vectors targeting coding and non-coding polyadenylated transcripts that were reduced in transformed Mouse Embryonic Fibroblasts (MEFs). The LEGO shRNA libraries included ~25 shRNA vectors per transcript which limited off-target artifacts. Our method identified 79 coding and non-coding suppressor transcripts. We found that taurine-responsive GABAA receptor subunits, including GABRA5 and GABRB3, were induced during the arrest of non-transformed anchor-deprived MEFs and prevented anchorless proliferation. We show that taurine activates chloride currents through GABAA receptors on MEFs, causing seclusion of cell volume in large membrane protrusions. Volume seclusion from cells by taurine correlated with reduced proliferation and, conversely, suppression of this pathway allowed anchorage-independent proliferation. In human cholangiocarcinomas, we found that several proteins involved in taurine signaling via GABAA receptors were repressed. Low GABRA5 expression typified hyperproliferative tumors, and loss of taurine signaling correlated with reduced patient survival, suggesting this tumor suppressive mechanism operates in vivo. PMID:29787571

  13. MIT pebble bed reactor project

    International Nuclear Information System (INIS)

    Kadak, Andrew C.

    2007-01-01

    The conceptual design of the MIT modular pebble bed reactor is described. This reactor plant is a 250 Mwth, 120 Mwe indirect cycle plant that is designed to be deployed in the near term using demonstrated helium system components. The primary system is a conventional pebble bed reactor with a dynamic central column with an outlet temperature of 900 C providing helium to an intermediate helium to helium heat exchanger (IHX). The outlet of the IHX is input to a three shaft horizontal Brayton Cycle power conversion system. The design constraint used in sizing the plant is based on a factory modularity principle which allows the plant to be assembled 'Lego' style instead of constructed piece by piece. This principle employs space frames which contain the power conversion system that permits the Lego-like modules to be shipped by truck or train to sites. This paper also describes the research that has been conducted at MIT since 1998 on fuel modeling, silver leakage from coated fuel particles, dynamic simulation, MCNP reactor physics modeling and air ingress analysis

  14. Trails of meaning construction: Symbolic artifacts engage the social brain.

    Science.gov (United States)

    Tylén, Kristian; Philipsen, Johanne Stege; Roepstorff, Andreas; Fusaroli, Riccardo

    2016-07-01

    Symbolic artifacts present a challenge to theories of neurocognitive processing due to their hybrid nature: they are at the same time physical objects and vehicles of intangible social meanings. While their physical properties can be read of their perceptual appearance, the meaning of symbolic artifacts depends on the perceiver's interpretative attitude and embeddedness in cultural practices. In this study, participants built models of LEGO bricks to illustrate their understanding of abstract concepts. They were then scanned with fMRI while presented to photographs of their own and others' models. When participants attended to the meaning of the models in contrast to their bare physical properties, we observed activations in mPFC and TPJ, areas often associated with social cognition, and IFG, possibly related to semantics. When contrasting own and others' models, we also found activations in precuneus, an area associated with autobiographical memory and agency, while looking at one's own collective models yielded interaction effects in rostral ACC, right IFG and left Insula. Interestingly, variability in the insula was predicted by individual differences in participants' feeling of relatedness to their fellow group members during LEGO construction activity. Our findings support a view of symbolic artifacts as neuro-cognitive trails of human social interactions. Copyright © 2016 Elsevier Inc. All rights reserved.

  15. An operator self-training system based upon the emulation of instructor skill

    International Nuclear Information System (INIS)

    Zuenkov, M.; Marsiletti, M.

    1999-01-01

    In the early 90's a project started in Ansaldo for developing the Training Compact Simulation Technology. One of the objectives was to substitute the human instructor with an Expert System based on the Emulation of Instructor Skill (EIS). EIS stems from software architecture and an ad hoc language (ABIS) developed at Institute of Control Sciences (ICS) of Moscow. The expert system relies upon Artificial Intelligence technology and qualitative logic modelling of controlled plant physics. Its task is to explain the physical effects of controlled plant behaviour and control system response and comment on them as well as estimation of operator's actions in standard and nonstandard situations. Insight into process physics is obtained through consulting the expert system into which the qualitative process model is built-in, thus enabling expert explanation of fine physical effects such as: identification of disturbance and control system actions. The main features of EIS are: (a) checking the correct memorisation of the plant procedures, (b) testing his own reactions when facing abnormal and/or unexpected situations, (c) improving his own engineering sensitivity, (d) getting on-line answers to specific questions, such as: what are the reasons of the current status of Plant (Operator control actions, control system actions, disturbances imposed by the Instructor, transient behaviour of parameters); what events are the result of the action performed by the Operator (step by step); what events can result from a given Operator action (prediction); correspondence of the Operator actions to the steps of the performed procedures; in abnormal situations, judgement about operator actions (positive or negative, with respect to the goal of plant stabilisation or disturbances elimination). A demonstrative application was developed for Sampierdarena 40 MW Cogeneration Plant. The plant model running under the simulator was built-up by means of the LEGO code. The LEGO code is a modular

  16. Older Adult Video Game Preferences in Practice: Investigating the Effects of Competing or Cooperating

    Science.gov (United States)

    Souders, Dustin J.; Boot, Walter R.; Charness, Neil; Moxley, Jerad H.

    2017-01-01

    Video game interventions with the aim to improve cognition have shown promise for both younger (e.g., Powers et al., 2013) and older adults (e.g., Toril, Reales, and Ballesteros, 2014). Most studies suggest that fast-paced action games produce the largest benefits, but a recent video game intervention with older adults found that an action game intervention can result in poor adherence (Boot et al., 2013). To increase intervention adherence, we investigated older adult video game preferences that might bolster adherence by having participants play a competitive game (Mario Kart DS) or a cooperative game (Lego Star Wars: The Complete Saga) alone or with a partner. Although hypotheses regarding cooperative and multi-player gameplay were not supported, converging evidence suggests multi-player game play may lead to greater enjoyment, which was related to intervention adherence in a previous study (Boot et al., 2013). Insights for gaming intervention studies in older populations are also provided. PMID:29033698

  17. Mapping the Challenges of Creativity Management in IS and ISD Organizations

    DEFF Research Database (Denmark)

    Ulrich, Frank

    2013-01-01

    Managing for creativity has proven to be one of the most important drivers in IS and IS development, providing competitive advantages for strong companies as Google, SAS Institute and LEGO. The continuous changing market environment drives companies to focus on creativity as an increasing necessity...... when competing through sustained innovations. However, creativity in the IS environment is a challenge for most organizations - primarily caused by the lack of knowledge in strategizing creative processes in relation to the IS strategies - causing companies to act ad hoc in their creative endeavors....... In this paper, I address these organizational challenges in creativity and IS. Grounded in a literature review conducted previously and a rigorous selection process, I have identified and presented a model of seven important factors for the creative context in IS organizations. From these factors, 21 common...

  18. A study of kinetic friction: The Timoshenko oscillator

    Science.gov (United States)

    Henaff, Robin; Le Doudic, Gabriel; Pilette, Bertrand; Even, Catherine; Fischbach, Jean-Marie; Bouquet, Frédéric; Bobroff, Julien; Monteverde, Miguel; Marrache-Kikuchi, Claire A.

    2018-03-01

    Friction is a complex phenomenon that is of paramount importance in everyday life. We present an easy-to-build and inexpensive experiment illustrating Coulomb's law of kinetic friction. The so-called friction, or Timoshenko, oscillator consists of a plate set into periodic motion through the competition between gravity and friction on its rotating supports. The period of such an oscillator gives a measurement of the coefficient of kinetic friction μk between the plate and the supports. Our prototype is mainly composed of a motor, LEGO blocks, and a low-cost microcontroller, but despite its simplicity, the results obtained are in good agreement with values of μk found in the literature (enhanced online).

  19. Poesia no espelho: Yona Wollach e Hilda Hilst

    Directory of Open Access Journals (Sweden)

    Lucius de Mello

    2013-03-01

    Full Text Available Elas estilhaçaram a própria identidade para atingir o estado mais puro e subjetivo da Poesia. O diálogo entre os poemas subversivos da israelense Yona Wollach e da brasileira Hilda Hilst. Desvendar os mundos poéticos e narrativos dessas duas poetisas é um desafio de fôlego. Este artigo não tem a pretensão de fazer uma análise profunda. Pretendemos trazer à luz apenas algumas semelhanças e diferenças entre Wollach e Hilst, duas mulheres sempre à deriva, sempre “estrangeiras” mesmo dentro da própria casa.

  20. Reflexive Learning through Visual Methods

    DEFF Research Database (Denmark)

    Frølunde, Lisbeth

    2014-01-01

    What. This chapter concerns how visual methods and visual materials can support visually oriented, collaborative, and creative learning processes in education. The focus is on facilitation (guiding, teaching) with visual methods in learning processes that are designerly or involve design. Visual...... methods are exemplified through two university classroom cases about collaborative idea generation processes. The visual methods and materials in the cases are photo elicitation using photo cards, and modeling with LEGO Serious Play sets. Why. The goal is to encourage the reader, whether student...... or professional, to facilitate with visual methods in a critical, reflective, and experimental way. The chapter offers recommendations for facilitating with visual methods to support playful, emergent designerly processes. The chapter also has a critical, situated perspective. Where. This chapter offers case...