Video Games, Internet and Social Networks: A Study among French School students

Science.gov (United States)

Dany, Lionel; Moreau, Laure; Guillet, Clémentine; Franchina, Carmelo

2016-11-25

Aim : Screen-based media use is gradually becoming a public health issue, especially among young people.Method : A local descriptive observational study was conducted in 11 colleges of the Bouches-du-Rhône department. All middle high school students were asked to fill in a questionnaire comprising questions about their demographic characteristics, their screen-based media use (Internet, video games, social networks), any problematic use (video games and social networks), self-esteem and quality of life.Results : A total of 950 college students (mean age : 12.96 years) participated in the research. The results show a high level and a very diverse screen-based media use. Boys more frequently played video games and girls go more frequently used social networks. The levels of problematic use were relatively low for all middle high school students. The level of problematic video game use was significantly higher in boys, and the level of problematic social network use was higher in girls.Conclusion : Differences in the use of video games or social networks raise the general issue of gender differences in society. This study indicates the need for more specific preventive interventions for screen-based media use. The addictive “nature” of certain practices needs to be studied in more detail.

A comparison between space-time video descriptors

Science.gov (United States)

Costantini, Luca; Capodiferro, Licia; Neri, Alessandro

2013-02-01

The description of space-time patches is a fundamental task in many applications such as video retrieval or classification. Each space-time patch can be described by using a set of orthogonal functions that represent a subspace, for example a sphere or a cylinder, within the patch. In this work, our aim is to investigate the differences between the spherical descriptors and the cylindrical descriptors. In order to compute the descriptors, the 3D spherical and cylindrical Zernike polynomials are employed. This is important because both the functions are based on the same family of polynomials, and only the symmetry is different. Our experimental results show that the cylindrical descriptor outperforms the spherical descriptor. However, the performances of the two descriptors are similar.

Mediating spaces acting for the collaboration in the future school

Directory of Open Access Journals (Sweden)

H. Teräväinen

2012-10-01

Full Text Available In this paper we report the performance and preliminary results of studies carried outduring the years 2007-2008 in a research project called InnoArch, Places and Spaces for Learning.InnoArch is a part of a large trans-disciplinary InnoSchool consortium (1.1.2007- 28.2.2010 aiming todevelop a set of research-based good practices, processes, models and designs for the Future SchoolConcept. InnoArch research has focused partly on “place and mapping”, which includes a place-based approachto pedagogical processes. On the other hand the research has concentrated on “space andexperience”, which includes architectural or spatial analyses of the building and the neighborhood. The spatial experience on each environmental scale is perceived with all senses: sight, hearing, taste, smell,touch and body awareness. Indoor studies are mainly about “creating and experiencing the space”,something that has great bearing on architectural thinking when designing the future school. The non-physical virtual space is seen as a mediator between the physical environment (neighborhoodand the PjBLL (Project Based Learning Lab at Jakomäki School in Helsinki. Places in the physical environment can be located on the commentary map, which will be constructed in the School Forum byteachers and students.The pupils themselves have an opportunity to personalize the room which is here described as a PjBLL.The room provides possibilities to pursue video observation as well as participative observation and participative design research during architectural workshops. These studies were conducted together with teachers, the pedagogical focus being on TSL processes and the architectural view on physicaland virtual spaces. Sustainability is within the focus of both the environmental studies as well as in lifelongand life-wide learning processes. The pedagogical idea based on inquiry-based learning encourages to strengthen pupils´ epistemic agency in the local community

An Exploration of Elementary School Counselors' Perceptions of Students' Exposure to Violent Video Games

Science.gov (United States)

Woody, Tammy Lynn

2010-01-01

This study explored elementary school counselors' perceptions of working with students exposed to violent video games. Certified elementary school counselors participated in both an online survey and individual interviews, revealing their observations regarding elementary school children and the phenomenon of gaming. An emphasis was placed on…

Causes and Effects of Online Video Game Playing Among Junior-Senior High School Students in Malang East Java

OpenAIRE

Eskasasnanda, I Dewa Putu

2017-01-01

Science and technology development causes a lot of changes in any fields including the form of popular games among the Junior and Senior High School students in Indonesia. The traditional games that are famous formerly have been replaced by the modern games like online video game. This article discusses the cause and effect of the online video game playing on the Junior and Senior High Schools students in Malang. This study reveal that students play video games online due to peers pressure; a...

Incorporating Video Modeling into a School-Based Intervention for Students with Autism Spectrum Disorders

Science.gov (United States)

Wilson, Kaitlyn P.

2013-01-01

Purpose: Video modeling is an intervention strategy that has been shown to be effective in improving the social and communication skills of students with autism spectrum disorders, or ASDs. The purpose of this tutorial is to outline empirically supported, step-by-step instructions for the use of video modeling by school-based speech-language…

Virtual communities in a secondary school – Discovering the internal grammar of video games

Directory of Open Access Journals (Sweden)

Laura Méndez

2014-01-01

Full Text Available This study attempts to show how the creation of an innovative scenario, introducing video games and online communities as educational resources in the classroom, facilitates the development of new literacies in the context of participatory culture. The experience described was carried out during the 2010-2011 academic year in a secondary school located in Madrid. The workshop was organized using a social simulation video game, The Sims 3, and the online community Play and Learn, created specifically for this project. From an ethnographic perspective, the article focuses mainly on analyzing what happened outside the game sessions, when the students became involved in the online community after interacting with the game in the classroom. The fact that they participated in a virtual conversational space (through a forum serves to support the game and encourage reflection from all participants. The results show that social relationships were developed within the online community, where individual contributions proved especially important for group discussion. Participation made it possible for students to become aware of the speech and rules of the game and to improve the acquisition process of new literacies.

Dashboard Videos

Science.gov (United States)

Gleue, Alan D.; Depcik, Chris; Peltier, Ted

2012-01-01

Last school year, I had a web link emailed to me entitled "A Dashboard Physics Lesson." The link, created and posted by Dale Basier on his "Lab Out Loud" blog, illustrates video of a car's speedometer synchronized with video of the road. These two separate video streams are compiled into one video that students can watch and analyze. After seeing…

Video semaphore decoding for free-space optical communication

Science.gov (United States)

Last, Matthew; Fisher, Brian; Ezekwe, Chinwuba; Hubert, Sean M.; Patel, Sheetal; Hollar, Seth; Leibowitz, Brian S.; Pister, Kristofer S. J.

2001-04-01

Using teal-time image processing we have demonstrated a low bit-rate free-space optical communication system at a range of more than 20km with an average optical transmission power of less than 2mW. The transmitter is an autonomous one cubic inch microprocessor-controlled sensor node with a laser diode output. The receiver is a standard CCD camera with a 1-inch aperture lens, and both hardware and software implementations of the video semaphore decoding algorithm. With this system sensor data can be reliably transmitted 21 km form San Francisco to Berkeley.

Exploring the Use of Video-Clips for Motivation Building in a Secondary School EFL Setting

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Park, Yujong; Jung, Eunsu

2016-01-01

By employing an action research framework, this study evaluated the effectiveness of a video-based curriculum in motivating EFL learners to learn English. Fifteen Korean EFL students at the secondary school context participated in an 8-week English program, which employed video clips including TED talk replays, sitcoms, TV news reports and movies…

Eight-channel video broadcast feed service using free-space optical wireless technology at the Sydney 2000 Olympic Games

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Szajowski, Paul F.; Rigas, A. J.; Robinson, J. W.; Nykolak, Gerald; Paulson, Bruce D.; Tourgee, G. E.; Auborn, James J.

2001-02-01

12 Terrestrial 1550 nm WDM free-space optical communication systems have been demonstrated to provide a viable means to transport data, voice and video channels for point-to-point applications without the use of optical fiber. Key features of free-space optical transmission systems are their ability to utilize present day telecommunication components such as: laser diode transmitters, high-power optical amplifiers operating within the 1550 nm optical transmission window and high-sensitivity optical receivers designed for multi-Giga- bit data rates. In this paper, we report on details of the world's first field test, demonstrating real time video transmission of eight uncompressed standard-definition (SD) video channels operating at an aggregate data rate of 1.485 Gb/s over a 0.89 km terrestrial free-space link. This data link was used in support of the 2000 Olympic games held recently in Sydney, Australia. Results from this eight- channel SD terrestrial free-space laser communications systems are presented. The transmission system operated error-free continuously from September 14, 2000 until October 1, 2000, twenty-four hours a day, throughout the coverage of the games. Modeling results predict that free- space SD video transmission systems can be designed and operated over significant link distances under nominal visibility conditions.

Relation between Video Game Addiction and Interfamily Relationships on Primary School Students

Science.gov (United States)

Zorbaz, Selen Demirtas; Ulas, Ozlem; Kizildag, Seval

2015-01-01

This study seeks to analyze whether or not the following three variables of "Discouraging Family Relations," "Supportive Family Relations," "Total Time Spent on the Computer," and "Grade Point Average (GPA)" predict elementary school students' video game addiction rates, and whether or not there exists a…

Young Children’s Video/Computer Game Use: Relations with School Performance and Behavior

OpenAIRE

Hastings, Erin C.; Karas, Tamara L.; Winsler, Adam; Way, Erin; Madigan, Amy; Tyler, Shannon

2009-01-01

This study examined the amount and content of children’s video game playing in relation with behavioral and academic outcomes. Relationships among playing context, child gender, and parental monitoring were explored. Data were obtained through parent report of child’s game play, behavior, and school performance. Results revealed that time spent playing games was related positively to aggression and negatively to school competence. Violent content was correlated positively and educational cont...

Pornography classification: The hidden clues in video space-time.

Science.gov (United States)

Moreira, Daniel; Avila, Sandra; Perez, Mauricio; Moraes, Daniel; Testoni, Vanessa; Valle, Eduardo; Goldenstein, Siome; Rocha, Anderson

2016-11-01

As web technologies and social networks become part of the general public's life, the problem of automatically detecting pornography is into every parent's mind - nobody feels completely safe when their children go online. In this paper, we focus on video-pornography classification, a hard problem in which traditional methods often employ still-image techniques - labeling frames individually prior to a global decision. Frame-based approaches, however, ignore significant cogent information brought by motion. Here, we introduce a space-temporal interest point detector and descriptor called Temporal Robust Features (TRoF). TRoF was custom-tailored for efficient (low processing time and memory footprint) and effective (high classification accuracy and low false negative rate) motion description, particularly suited to the task at hand. We aggregate local information extracted by TRoF into a mid-level representation using Fisher Vectors, the state-of-the-art model of Bags of Visual Words (BoVW). We evaluate our original strategy, contrasting it both to commercial pornography detection solutions, and to BoVW solutions based upon other space-temporal features from the scientific literature. The performance is assessed using the Pornography-2k dataset, a new challenging pornographic benchmark, comprising 2000 web videos and 140h of video footage. The dataset is also a contribution of this work and is very assorted, including both professional and amateur content, and it depicts several genres of pornography, from cartoon to live action, with diverse behavior and ethnicity. The best approach, based on a dense application of TRoF, yields a classification error reduction of almost 79% when compared to the best commercial classifier. A sparse description relying on TRoF detector is also noteworthy, for yielding a classification error reduction of over 69%, with 19× less memory footprint than the dense solution, and yet can also be implemented to meet real-time requirements

Impact of Nigerian Home Video/Movie Industry on the Moral Behaviours of Secondary School Students in Ebonyi State of Nigeria

Science.gov (United States)

Njoku, Nkechi C.

2016-01-01

Impact of home video/movie industry on the moral behaviour of secondary school students is a search for the impact of home video in moral upbringing of school children. The study adopted a survey design approach of investigation: The area of study is Ebonyi State and the population comprised all the 322 CRS teachers in the state. 200 teachers were…

The Case Against Learning In School With Evidence From Video Game Studies

Directory of Open Access Journals (Sweden)

Izabela USCINSKI

2013-12-01

Full Text Available The author of this article argues that learning in school is an outmoded practice that needs to be reevaluated in light of current practices that children engage in outside of school as well as skills needed for the future. She draws on the philosophy of learning proposed by John Holt and researchers who have carried over his philosophy to demonstrate the qualities of real learning. Then, she demonstrates that learning principles built into the video games as proposed by James Gee, are more effective in engaging players in skills needed in the 21st century than many activities students perform in school.

TUTORIAL SUPPORT IN THE INFORMATION SPACE OF SCHOOLS

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Вита Иммануиловна Глизбург

2017-12-01

Full Text Available The article deals with teachers and professional competence tyutorskoy, tutor support schools in the information space. The main requirements to the tutor support in the information space of schools, conditions of readiness of the teacher to tutor support schools in the information space. A theoretical analysis of the concept of information competence, tyutorskoy competence. It is noted that in thestructure of information competence must exist an element associated with the motivation, need and interest in the acquisition of knowledge and skills in the field of technical, software and information. Formulated key performance indicators definition of information competence of the tutor. The authors noted that information and work with it is in the modern educational and information space school mandatory components of pedagogical activity as a system.Analyzed and presented on the basis of the author’s experience of the possibility of using information and educational Moodle shell with tutor support positions in the information space of schools, sets out the basic elements and resources Moodle shell with a description of the implementation. In particular, the disclosed educational resources information and educational shell Moodle for remote support learning. The article describes a model developed by the author’s tutor support schools in the information space.

Schools as Racial Spaces: Understanding and Resisting Structural Racism

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Blaisdell, Benjamin

2016-01-01

Analyzing schools as racial spaces can help researchers examine the role of teachers in the perpetuation of structural racism in schools. Based on ethnographic and autoethnographic work, this article offers examples of schools as racial spaces, spaces where whiteness controlled access. It also highlights four teachers who pursued racial equity in…

The architecture of a video image processor for the space station

Science.gov (United States)

Yalamanchili, S.; Lee, D.; Fritze, K.; Carpenter, T.; Hoyme, K.; Murray, N.

1987-01-01

The architecture of a video image processor for space station applications is described. The architecture was derived from a study of the requirements of algorithms that are necessary to produce the desired functionality of many of these applications. Architectural options were selected based on a simulation of the execution of these algorithms on various architectural organizations. A great deal of emphasis was placed on the ability of the system to evolve and grow over the lifetime of the space station. The result is a hierarchical parallel architecture that is characterized by high level language programmability, modularity, extensibility and can meet the required performance goals.

A High School-Based Evaluation of TakeCARE, a Video Bystander Program to Prevent Adolescent Relationship Violence.

Science.gov (United States)

Sargent, Kelli S; Jouriles, Ernest N; Rosenfield, David; McDonald, Renee

2017-03-01

Although bystander programs to prevent relationship and sexual violence have been evaluated with college students, few evaluations have been conducted with high school students. This study evaluated the effectiveness of TakeCARE, a brief video bystander program designed to promote helpful bystander behavior in situations involving relationship violence among high school students. Students (N = 1295; 52.5% female; 72.3% Hispanic) reported their bystander behavior at a baseline assessment. Classrooms (N = 66) were randomized to view TakeCARE or to a control condition, and high school counselors administered the video in the classrooms assigned to view TakeCARE. Students again reported their bystander behavior at a follow-up assessment approximately 3 months afterward. Results indicate that students who viewed TakeCARE reported more helpful bystander behavior at the follow-up assessment than students in the control condition. Results of exploratory analyses of the likelihood of encountering and intervening upon specific situations calling for bystander behavior are also reported. TakeCARE is efficacious when implemented in an urban high school by high school counselors.

Video Games and Education: Designing Learning Systems for an Interactive Age

Science.gov (United States)

Squire, Kurt D.

2008-01-01

Recently, attention has been paid to computer and video games as a medium for learning. This article provides a way of conceptualizing them as possibility spaces for learning. It provides an overview of two research programs: (1) an after-school program using commercial games to develop deep expertise in game play and game creation, and (2) an…

The effect of video interviews with STEM professionals on STEM-subject attitude and STEM-career interest of middle school students in conservative Protestant Christian schools

Science.gov (United States)

Alsup, Philip R.

Inspiring learners toward career options available in STEM fields (Science, Technology, Engineering, and Mathematics) is important not only for economic development but also for maintaining creative thinking and innovation. Limited amounts of research in STEM education have focused on the population of students enrolled in religious and parochial schools, and given the historic conflict between religion and science, this sector of American education is worthy of examination. The purpose of this quantitative study is to extend Gottfredson's (1981) Theory of Circumscription and Compromise as it relates to occupational aspirations. Bem's (1981) Gender Schema Theory is examined as it relates to the role of gender in career expectations, and Crenshaw's (1989) Intersectionality Theory is included as it pertains to religion as a group identifier. Six professionals in STEM career fields were video recorded while being interviewed about their skills and education as well as positive and negative aspects of their jobs. The interviews were compiled into a 25-minute video for the purpose of increasing understanding of STEM careers among middle school viewers. The research questions asked whether middle school students from conservative, Protestant Christian schools in a Midwest region increased in STEM-subject attitude and STEM-career interest as a result of viewing the video and whether gender interacted with exposure to the video. A quasi-experimental, nonequivalent control groups, pretest/posttest factorial design was employed to evaluate data collected from the STEM Semantic Survey. A Two-Way ANCOVA revealed no significant differences in dependent variables from pretest to posttest. Implications of the findings are examined and recommendations for future research are made. Descriptors: STEM career interest, STEM attitude, STEM gender disparity, Occupational aspirations, Conservative Protestant education.

Talking Video in 'Everyday Life'

DEFF Research Database (Denmark)

McIlvenny, Paul

For better or worse, video technologies have made their way into many domains of social life, for example in the domain of therapeutics. Techniques such as Marte Meo, Video Interaction Guidance (ViG), Video-Enhanced Reflection on Communication, Video Home Training and Video intervention....../prevention (VIP) all promote the use of video as a therapeutic tool. This paper focuses on media therapeutics and the various in situ uses of video technologies in the mass media for therapeutic purposes. Reality TV parenting programmes such as Supernanny, Little Angels, The House of Tiny Tearaways, Honey, We...... observation and instruction (directives) relayed across different spaces; 2) the use of recorded video by participants to visualise, spatialise and localise talk and action that is distant in time and/or space; 3) the translating, stretching and cutting of social experience in and through the situated use...

THE CONTRIBUTION OF THE PRODUCTION OF DIGITAL VIDEOS BY DISCIPLES OF A MUNICIPAL SCHOOL IN THE CONSTRUCTION OF CONTEXTUALIZED KNOWLEDGE IN SCIENCE TEACHING

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Sebastiao Silva Vieira

2017-10-01

Full Text Available This work presents an intervention research and participant that analyzes how the production of digital videos by students of a municipal school brings contributions to the construction of the knowledge contextualized in the teaching of sciences. For this purpose, references were used to cover four thematic areas: the use of digital technologies in the school context; The contextualization of contents in science education; Communication and mediation in school; And finally the production of digital video in science education. The qualitative methodology used, using semi-structured interviews and participant observation. Previously, the beginnings of the work of the students, workshops were created to create digital video, then a semistructured interview was carried out, in the post-production phase, with the students and the teacher. The results show that the production of digital videos have brought significant contributions to the students since participating in the workshop of video production, to the stage of conclusion and presentation of digital video in the classroom. With this, the students used the production of digital video as a differentiated methodology, source of research and production of knowledge. Participants, directors, learners and authors in the elaboration of the video, searching information related to the content, performing readings, planning the production, the "script", accompanying the assembly, using digital technologies in production, disseminating and participating in debates collectively. They constructed the knowledge proposed in science teaching and brought the curricular content studied into practice, reinforcing the discussion about the use and production of digital video as an educational tool.

Structured student-generated videos for first-year students at a dental school in Malaysia.

Science.gov (United States)

Omar, Hanan; Khan, Saad A; Toh, Chooi G

2013-05-01

Student-generated videos provide an authentic learning experience for students, enhance motivation and engagement, improve communication skills, and improve collaborative learning skills. This article describes the development and implementation of a student-generated video activity as part of a knowledge, observation, simulation, and experience (KOSE) program at the School of Dentistry, International Medical University, Kuala Lumpur, Malaysia. It also reports the students' perceptions of an activity that introduced first-year dental students (n=44) to clinical scenarios involving patients and dental team aiming to improve professional behavior and communication skills. The learning activity was divided into three phases: preparatory phase, video production phase, and video-watching. Students were organized into five groups and were instructed to generate videos addressing given clinical scenarios. Following the activity, students' perceptions were assessed with a questionnaire. The results showed that 86 percent and 88 percent, respectively, of the students agreed that preparation of the activity enhanced their understanding of the role of dentists in provision of health care and the role of enhanced teamwork. In addition, 86 percent and 75 percent, respectively, agreed that the activity improved their communication and project management skills. Overall, the dental students perceived that the student-generated video activity was a positive experience and enabled them to play the major role in driving their learning process.

Comparison of the Effects of Continuous Video Modeling, Video Prompting, and Video Modeling on Task Completion by Young Adults with Moderate Intellectual Disability

Science.gov (United States)

Mechling, Linda C.; Ayres, Kevin M.; Bryant, Kathryn J.; Foster, Ashley L.

2014-01-01

This study compared the effects of three procedures (video prompting: VP, video modeling: VM, and continuous video modeling: CVM) on task completion by three high school students with moderate intellectual disability. The comparison was made across three sets of fundamentally different tasks (putting away household items in clusters of two items;…

A Case Study of the In-Class Use of a Video Game for Teaching High School History

Science.gov (United States)

Watson, William R.; Mong, Christopher J.; Harris, Constance A.

2011-01-01

This study examines the case of a sophomore high school history class where "Making History", a video game designed with educational purposes in mind, is used in the classroom to teach about World War II. Data was gathered using observation, focus group and individual interviews, and document analysis. The high school was a rural school…

The relationship between violent video games, acculturation, and aggression among Latino adolescents.

Science.gov (United States)

Escobar-Chaves, S Liliana; Kelder, Steve; Orpinas, Pamela

2002-12-01

Multiple factors are involved in the occurrence of aggressive behavior. The purpose of this study was to evaluate the hypotheses that Latino middle school children exposed to higher levels of video game playing will exhibit a higher level of aggression and fighting compared to children exposed to lower levels and that the more acculturated middle school Latino children will play more video games and will prefer more violent video games compared to less acculturated middle school Latino children. This study involved 5,831 students attending eight public schools in Texas. A linear relationship was observed between the time spent playing video games and aggression scores. Higher aggression scores were significantly associated with heavier video playing for boys and girls (p video games, the more they fought at school (p video game playing increased, as well as the amount of time they played video games. Students who reported speaking more Spanish at home and with their friends were less likely to spend large amounts of time playing video games and less likely to prefer violent video games (p < 0.05).

Training Early Career Space Weather Researchers and other Space Weather Professionals at the CISM Space Weather Summer School

Science.gov (United States)

Gross, N. A.; Hughes, W.

2011-12-01

This talk will outline the organization of a summer school designed to introduce young professions to a sub-discipline of geophysics. Through out the 10 year life time of the Center for Integrated Space Weather Modeling (CISM) the CISM Team has offered a two week summer school that introduces new graduate students and other interested professional to the fundamentals of space weather. The curriculum covers basic concepts in space physics, the hazards of space weather, and the utility of computer models of the space environment. Graduate students attend from both inside and outside CISM, from all the sub-disciplines involved in space weather (solar, heliosphere, geomagnetic, and aeronomy), and from across the nation and around the world. In addition, between 1/4 and 1/3 of the participants each year are professionals involved in space weather in some way, such as: forecasters from NOAA and the Air Force, Air Force satellite program directors, NASA specialists involved in astronaut radiation safety, and representatives from industries affected by space weather. The summer school has adopted modern pedagogy that has been used successfully at the undergraduate level. A typical daily schedule involves three morning lectures followed by an afternoon lab session. During the morning lectures, student interaction is encouraged using "Timeout to Think" questions and peer instruction, along with question cards for students to ask follow up questions. During the afternoon labs students, working in groups of four, answer thought provoking questions using results from simulations and observation data from a variety of source. Through the interactions with each other and the instructors, as well as social interactions during the two weeks, students network and form bonds that will last them through out their careers. We believe that this summer school can be used as a model for summer schools in a wide variety of disciplines.

Daily Digest Generation of Kindergartner from Surveillance Video

Science.gov (United States)

Ishikawa, Tomoya; Wang, Yu; Kato, Jien

Nowadays, children spend most of their time in kindergarten as well as nursery schools. This directly brings a requirement to the parents: they want to see how everyday goes with their kids. To meet this requirement, in this paper, we propose a method to automatically generate video digest that records kids' daily life in kindergarten. Our method involves two steps. The first is to efficiently narrow down the searching space by analyzing the noisy RFID tag log which records kids' temporal location, while the second is to use visual features and time constrains to recognize events and pick out video segments for each individual event. The accuracy of our method was evaluated with quantitative experiment and the superior of the digest that generated by our method was confirmed via questionnaire survey.

Constructing Self-Modeling Videos: Procedures and Technology

Science.gov (United States)

Collier-Meek, Melissa A.; Fallon, Lindsay M.; Johnson, Austin H.; Sanetti, Lisa M. H.; Delcampo, Marisa A.

2012-01-01

Although widely recommended, evidence-based interventions are not regularly utilized by school practitioners. Video self-modeling is an effective and efficient evidence-based intervention for a variety of student problem behaviors. However, like many other evidence-based interventions, it is not frequently used in schools. As video creation…

Web Audio/Video Streaming Tool

Science.gov (United States)

Guruvadoo, Eranna K.

2003-01-01

In order to promote NASA-wide educational outreach program to educate and inform the public of space exploration, NASA, at Kennedy Space Center, is seeking efficient ways to add more contents to the web by streaming audio/video files. This project proposes a high level overview of a framework for the creation, management, and scheduling of audio/video assets over the web. To support short-term goals, the prototype of a web-based tool is designed and demonstrated to automate the process of streaming audio/video files. The tool provides web-enabled users interfaces to manage video assets, create publishable schedules of video assets for streaming, and schedule the streaming events. These operations are performed on user-defined and system-derived metadata of audio/video assets stored in a relational database while the assets reside on separate repository. The prototype tool is designed using ColdFusion 5.0.

A Space-Based Learning Service for Schools Worldwide

Science.gov (United States)

White, Norman A.; Gibson, Alan

2002-01-01

This paper outlines a scheme for international collaboration to enrich the use of space in school education, to improve students' learning about science and related subjects and to enhance the continuity of science-related studies after the age of 16. Guidelines are presented for the design of an on-line learning service to provide schools worldwide with:- interactive curriculum-related learning resources for teaching about space and through - access to a purpose-designed education satellite or satellites; - opportunities for hands-on work by students in out-of-school hours; - news about space developments to attract, widen and deepen initial interest among teachers - support services to enable teachers to make effective use of the learning service. The Learning Service is the product of almost twenty years of experience by a significant number of UK schools in experimenting with, and in using, satellites and space to aid learning; and over four years of study and development by the SpaceLink Learning Foundation - a private-sector, not- for-profit UK registered charity, which is dedicated to help in increasing both the supply of scientists and engineers and the public understanding of science. This initiative provides scope for, and could benefit from, the involvement of relevant/interested organisations drawn from different countries. The Foundation would be ready, from its UK base, to be among such a group of initiating organisations.

Dissolving the School Space: Young People's Media Production in and outside of School

Science.gov (United States)

Kupiainen, Reijo

2013-01-01

Young people bring their own media and literacy practices to school as an important part of their identity, taste and social life. These practices are changing the media ecology of schools, making the physical boundaries of schools more permeable and creating new, unofficial spaces at school. During peer-based learning, the enhanced media…

Inside School Spaces: Rethinking the Hidden Dimension.

Science.gov (United States)

Sitton, Thad

1980-01-01

Considers the spatial arrangements of public schools as culturally derived characteristics that reflect particular traditional expectations in regard to the learning process and teacher student interactions. Discusses fixed spatial arrangements as well as the territorial manipulation of school space by students. (GC)

Young children's video/computer game use: relations with school performance and behavior.

Science.gov (United States)

Hastings, Erin C; Karas, Tamara L; Winsler, Adam; Way, Erin; Madigan, Amy; Tyler, Shannon

2009-10-01

This study examined the amount and content of children's video game playing in relation with behavioral and academic outcomes. Relationships among playing context, child gender, and parental monitoring were explored. Data were obtained through parent report of child's game play, behavior, and school performance. Results revealed that time spent playing games was related positively to aggression and negatively to school competence. Violent content was correlated positively and educational content negatively with attention problems. Educational games were related to good academic achievement. Results suggest violent games, and a large amount of game play, are related to troublesome behavioral and academic outcomes, but educational games may be related to positive outcomes. Neither gender nor parental monitoring emerged as significant moderators of these effects.

Categorizing Video Game Audio

DEFF Research Database (Denmark)

Westerberg, Andreas Rytter; Schoenau-Fog, Henrik

2015-01-01

they can use audio in video games. The conclusion of this study is that the current models' view of the diegetic spaces, used to categorize video game audio, is not t to categorize all sounds. This can however possibly be changed though a rethinking of how the player interprets audio.......This paper dives into the subject of video game audio and how it can be categorized in order to deliver a message to a player in the most precise way. A new categorization, with a new take on the diegetic spaces, can be used a tool of inspiration for sound- and game-designers to rethink how...

Pay It Forward: High School Video-based Instruction Can Disseminate CPR Knowledge in Priority Neighborhoods.

Science.gov (United States)

Del Rios, Marina; Han, Josiah; Cano, Alejandra; Ramirez, Victor; Morales, Gabriel; Campbell, Teri L; Hoek, Terry Vanden

2018-03-01

The implementation of creative new strategies to increase layperson cardiopulmonary resuscitation (CPR) and defibrillation may improve resuscitation in priority populations. As more communities implement laws requiring CPR training in high schools, there is potential for a multiplier effect and reach into priority communities with low bystander-CPR rates. We investigated the feasibility, knowledge acquisition, and dissemination of a high school-centered, CPR video self-instruction program with a "pay-it-forward" component in a low-income, urban, predominantly Black neighborhood in Chicago, Illinois with historically low bystander-CPR rates. Ninth and tenth graders followed a video self-instruction kit in a classroom setting to learn CPR. As homework, students were required to use the training kit to "pay it forward" and teach CPR to their friends and family. We administered pre- and post-intervention knowledge surveys to measure knowledge acquisition among classroom and "pay-it-forward" participants. Seventy-one classroom participants trained 347 of their friends and family, for an average of 4.9 additional persons trained per kit. Classroom CPR knowledge survey scores increased from 58% to 93% (p pay-it-forward cohort saw an increase from 58% to 82% (p pay-it-forward" component can disseminate CPR knowledge beyond the classroom. Because schools are centrally-organized settings to which all children and their families have access, school-based interventions allow for a broad reach that encompasses all segments of the population and have potential to decrease disparities in bystander CPR provision.

Pay It Forward: High School Video-based Instruction Can Disseminate CPR Knowledge in Priority Neighborhoods

Science.gov (United States)

Han, Josiah; Cano, Alejandra; Ramirez, Victor; Morales, Gabriel; Campbell, Teri L.; Hoek, Terry Vanden

2018-01-01

Introduction The implementation of creative new strategies to increase layperson cardiopulmonary resuscitation (CPR) and defibrillation may improve resuscitation in priority populations. As more communities implement laws requiring CPR training in high schools, there is potential for a multiplier effect and reach into priority communities with low bystander-CPR rates. Methods We investigated the feasibility, knowledge acquisition, and dissemination of a high school-centered, CPR video self-instruction program with a “pay-it-forward” component in a low-income, urban, predominantly Black neighborhood in Chicago, Illinois with historically low bystander-CPR rates. Ninth and tenth graders followed a video self-instruction kit in a classroom setting to learn CPR. As homework, students were required to use the training kit to “pay it forward” and teach CPR to their friends and family. We administered pre- and post-intervention knowledge surveys to measure knowledge acquisition among classroom and “pay-it-forward” participants. Results Seventy-one classroom participants trained 347 of their friends and family, for an average of 4.9 additional persons trained per kit. Classroom CPR knowledge survey scores increased from 58% to 93% (p CPR educational intervention with a “pay-it-forward” component can disseminate CPR knowledge beyond the classroom. Because schools are centrally-organized settings to which all children and their families have access, school-based interventions allow for a broad reach that encompasses all segments of the population and have potential to decrease disparities in bystander CPR provision. PMID:29560076

Travels in Space and Place: Identity and Rural Schooling

Science.gov (United States)

Corbett, Michael

2007-01-01

This analysis draws on interview data from a three-year study of educational decision making of youth living in a coastal community in Atlantic Canada. Students whose educational and mobility aspirations extend outside the known spaces of the community develop the ability to negotiate multiple social spaces in and out of school. The school- …

Pay It Forward: High School Video-based Instruction Can Disseminate CPR Knowledge in Priority Neighborhoods

Directory of Open Access Journals (Sweden)

Josiah Han

2018-02-01

Full Text Available Introduction: The implementation of creative new strategies to increase layperson cardiopulmonary resuscitation (CPR and defibrillation may improve resuscitation in priority populations. As more communities implement laws requiring CPR training in high schools, there is potential for a multiplier effect and reach into priority communities with low bystander-CPR rates. Methods: We investigated the feasibility, knowledge acquisition, and dissemination of a high school-centered, CPR video self-instruction program with a “pay-it-forward” component in a low-income, urban, predominantly Black neighborhood in Chicago, Illinois with historically low bystander-CPR rates. Ninth and tenth graders followed a video self-instruction kit in a classroom setting to learn CPR. As homework, students were required to use the training kit to “pay it forward” and teach CPR to their friends and family. We administered pre- and post-intervention knowledge surveys to measure knowledge acquisition among classroom and “pay-it-forward” participants. Results: Seventy-one classroom participants trained 347 of their friends and family, for an average of 4.9 additional persons trained per kit. Classroom CPR knowledge survey scores increased from 58% to 93% (p < 0.0001. The pay-it-forward cohort saw an increase from 58% to 82% (p < 0.0001. Conclusion: A high school-centered, CPR educational intervention with a “pay-it-forward” component can disseminate CPR knowledge beyond the classroom. Because schools are centrally-organized settings to which all children and their families have access, school-based interventions allow for a broad reach that encompasses all segments of the population and have potential to decrease disparities in bystander CPR provision.

State of the art in video system performance

Science.gov (United States)

Lewis, Michael J.

1990-01-01

The closed circuit television (CCTV) system that is onboard the Space Shuttle has the following capabilities: camera, video signal switching and routing unit (VSU); and Space Shuttle video tape recorder. However, this system is inadequate for use with many experiments that require video imaging. In order to assess the state-of-the-art in video technology and data storage systems, a survey was conducted of the High Resolution, High Frame Rate Video Technology (HHVT) products. The performance of the state-of-the-art solid state cameras and image sensors, video recording systems, data transmission devices, and data storage systems versus users' requirements are shown graphically.

Video astronomy on the go using video cameras with small telescopes

CERN Document Server

Ashley, Joseph

2017-01-01

Author Joseph Ashley explains video astronomy's many benefits in this comprehensive reference guide for amateurs. Video astronomy offers a wonderful way to see objects in far greater detail than is possible through an eyepiece, and the ability to use the modern, entry-level video camera to image deep space objects is a wonderful development for urban astronomers in particular, as it helps sidestep the issue of light pollution. The author addresses both the positive attributes of these cameras for deep space imaging as well as the limitations, such as amp glow. The equipment needed for imaging as well as how it is configured is identified with hook-up diagrams and photographs. Imaging techniques are discussed together with image processing (stacking and image enhancement). Video astronomy has evolved to offer great results and great ease of use, and both novices and more experienced amateurs can use this book to find the set-up that works best for them. Flexible and portable, they open up a whole new way...

Young Children’s Video/Computer Game Use: Relations with School Performance and Behavior

Science.gov (United States)

Hastings, Erin C.; Karas, Tamara L.; Winsler, Adam; Way, Erin; Madigan, Amy; Tyler, Shannon

2011-01-01

This study examined the amount and content of children’s video game playing in relation with behavioral and academic outcomes. Relationships among playing context, child gender, and parental monitoring were explored. Data were obtained through parent report of child’s game play, behavior, and school performance. Results revealed that time spent playing games was related positively to aggression and negatively to school competence. Violent content was correlated positively and educational content negatively with attention problems. Educational games were related to good academic achievement. Results suggest violent games, and a large amount of game play, are related to troublesome behavioral and academic outcomes, but educational games may be related to positive outcomes. Neither gender nor parental monitoring emerged as significant moderators of these effects. PMID:19742374

Introducing an Information-Seeking Skill in a School Library to Students with Autism Spectrum Disorder: Using Video Modeling and Least-to-Most Prompts

Science.gov (United States)

Markey, Patricia T.

2015-01-01

This study investigated the effectiveness of a video peer modeling and least-to-most prompting intervention in the school library setting, targeting the instructional delivery of an information-literacy skill to students with Autism Spectrum Disorder (ASD). Research studies have evaluated the effectiveness of video-modeling procedures in the…

Pathological video-gaming among Singaporean youth.

Science.gov (United States)

Choo, Hyekyung; Gentile, Douglas A; Sim, Timothy; Li, Dongdong; Khoo, Angeline; Liau, Albert K

2010-11-01

Increase in internet use and video-gaming contributes to public concern on pathological or obsessive play of video games among children and adolescents worldwide. Nevertheless, little is known about the prevalence of pathological symptoms in video-gaming among Singaporean youth and the psychometric properties of instruments measuring pathological symptoms in video-gaming. A total of 2998 children and adolescents from 6 primary and 6 secondary schools in Singapore responded to a comprehensive survey questionnaire on sociodemographic characteristics, video-gaming habits, school performance, somatic symptoms, various psychological traits, social functioning and pathological symptoms of video-gaming. After weighting, the survey data were analysed to determine the prevalence of pathological video-gaming among Singaporean youth and gender differences in the prevalence. The construct validity of instrument used to measure pathological symptoms of video-gaming was tested. Of all the study participants, 8.7% were classified as pathological players with more boys reporting more pathological symptoms than girls. All variables, including impulse control problem, social competence, hostility, academic performance, and damages to social functioning, tested for construct validity, were significantly associated with pathological status, providing good evidence for the construct validity of the instrument used. The prevalence rate of pathological video-gaming among Singaporean youth is comparable with that from other countries studied thus far, and gender differences are also consistent with the findings of prior research. The positive evidence of construct validity supports the potential use of the instrument for future research and clinical screening on Singapore children and adolescents' pathological video-gaming.

Influence of children pedestrian behaviour on pedestrian space usage

Science.gov (United States)

Makalew, F. P.; Adisasmita, S. A.; Wunas, S.; Hamid, S.

2017-11-01

School children pedestrian behaviour can be seen along their journey to and from school. Pedestrian spaces used by children are places available in urban and rural areas including streets with and without pedestrian pathways. Samples data are collected from 23 elementary schools in urban and rural areas in North Sulawesi, Indonesia in the form of video records and photos taken. The aim of this research is to analyse children pedestrian behaviour and its influence on the space usage on pedestrian areas. Method of analysis is a comparative study on urban and rural areas. Results of this research are types of behaviour, factors that influence the behaviour, physical condition of pedestrian areas and space usage by children. The behaviours are duck-line walking, running, playing, walking backward and walking with bare foot in which running is the main behaviour. These behaviours are influenced by factors including following friends and responding to acts. There are similarities and differences between pedestrian space usage in urban and rural areas. Space use by children pedestrian demonstrates the way pedestrian areas should be planned. Space usage by children pedestrian indicates that there is a need of evaluation of the space available considering pedestrian children behaviour.

The relationship between playing computer or video games with mental health and social relationships among students in guidance schools, Kermanshah.

Science.gov (United States)

Reshadat, S; Ghasemi, S R; Ahmadian, M; RajabiGilan, N

2014-01-09

Computer or video games are a popular recreational activity and playing them may constitute a large part of leisure time. This cross-sectional study aimed to evaluate the relationship between playing computer or video games with mental health and social relationships among students in guidance schools in Kermanshah, Islamic Republic of Iran, in 2012. Our total sample was 573 students and our tool was the General Health Questionnaire (GHQ-28) and social relationships questionnaires. Survey respondents reported spending an average of 71.07 (SD 72.1) min/day on computer or video games. There was a significant relationship between time spent playing games and general mental health (P computer or video games with social relationships and their subscales, including trans-local relationships (P games (P < 0.02) and its dimensions, except for family relationships.

The influence of television and video game use on attention and school problems: a multivariate analysis with other risk factors controlled.

Science.gov (United States)

Ferguson, Christopher J

2011-06-01

Research on youth mental health has increasingly indicated the importance of multivariate analyses of multiple risk factors for negative outcomes. Television and video game use have often been posited as potential contributors to attention problems, but previous studies have not always been well-controlled or used well-validated outcome measures. The current study examines the multivariate nature of risk factors for attention problems symptomatic of attention deficit hyperactivity disorder and poor school performance. A predominantly Hispanic population of 603 children (ages 10-14) and their parents/guardians responded to multiple behavioral measures. Outcome measures included parent and child reported attention problem behaviors on the Child Behavior Checklist (CBCL) as well as poor school performance as measured by grade point average (GPA). Results found that internal factors such as male gender, antisocial traits, family environment and anxiety best predicted attention problems. School performance was best predicted by family income. Television and video game use, whether total time spent using, or exposure to violent content specifically, did not predict attention problems or GPA. Television and video game use do not appear to be significant predictors of childhood attention problems. Intervention and prevention efforts may be better spent on other risk factors. Copyright © 2010 Elsevier Ltd. All rights reserved.

Twelve tips for the production of digital chalk-talk videos.

Science.gov (United States)

Rana, Jasmine; Besche, Henrike; Cockrill, Barbara

2017-06-01

Increasingly over the past decade, faculty in medical and graduate schools have received requests from digital millennial learners for concise faculty-made educational videos. At our institution, over the past couple of years alone, several hundred educational videos have been created by faculty who teach in a flipped-classroom setting of the pre-clinical medical school curriculum. Despite the appeal and potential learning benefits of digital chalk-talk videos first popularized by Khan Academy, we have observed that the conceptual and technological barriers for creating chalk-talk videos can be high for faculty. To this end, this tips article offers an easy-to-follow 12-step conceptual framework to guide at-home production of chalk-talk educational videos.

The spatial practices of school administrative clerks: making space ...

African Journals Online (AJOL)

The spatial practices of school administrative clerks: making space for ... their invisible, largely taken-for-granted roles in a school's everyday functioning. This main aim of this article is to make their everyday practices and contributions visible, ...

Design of a highly integrated video acquisition module for smart video flight unit development

Science.gov (United States)

Lebre, V.; Gasti, W.

2017-11-01

CCD and APS devices are widely used in space missions as instrument sensors and/or in Avionics units like star detectors/trackers. Therefore, various and numerous designs of video acquisition chains have been produced. Basically, a classical video acquisition chain is constituted of two main functional blocks: the Proximity Electronics (PEC), including detector drivers and the Analogue Processing Chain (APC) Electronics that embeds the ADC, a master sequencer and the host interface. Nowadays, low power technologies allow to improve the integration, radiometric performances and power budget optimisation of video units and to standardize video units design and development. To this end, ESA has initiated a development activity through a competitive process requesting the expertise of experienced actors in the field of high resolution electronics for earth observation and Scientific missions. THALES ALENIA SPACE has been granted this activity as a prime contractor through ESA contract called HIVAC that holds for Highly Integrated Video Acquisition Chain. This paper presents main objectives of the on going HIVAC project and focuses on the functionalities and performances offered by the usage of the under development HIVAC board for future optical instruments.

Special Needs: Planning for Adulthood (Videos)

Medline Plus

Full Text Available ... Diseases & Conditions Pregnancy & Baby Nutrition & Fitness Emotions & Behavior School & Family Life First Aid & Safety Doctors & Hospitals Videos ... Health Food & Fitness Diseases & Conditions Infections Drugs & Alcohol School & Jobs Sports Expert Answers (Q&A) Staying Safe ...

Chinese Language Video Clips. [CD-ROM].

Science.gov (United States)

Fleming, Stephen; Hipley, David; Ning, Cynthia

This compact disc includes video clips covering six topics for the learner of Chinese: personal information, commercial transactions, travel and leisure, health and sports, food and school. Filmed on location in Beijing, these naturalistic video clips consist mainly of unrehearsed interviews of ordinary people. The learner is lead through a series…

Innovative Solution to Video Enhancement

Science.gov (United States)

2001-01-01

Through a licensing agreement, Intergraph Government Solutions adapted a technology originally developed at NASA's Marshall Space Flight Center for enhanced video imaging by developing its Video Analyst(TM) System. Marshall's scientists developed the Video Image Stabilization and Registration (VISAR) technology to help FBI agents analyze video footage of the deadly 1996 Olympic Summer Games bombing in Atlanta, Georgia. VISAR technology enhanced nighttime videotapes made with hand-held camcorders, revealing important details about the explosion. Intergraph's Video Analyst System is a simple, effective, and affordable tool for video enhancement and analysis. The benefits associated with the Video Analyst System include support of full-resolution digital video, frame-by-frame analysis, and the ability to store analog video in digital format. Up to 12 hours of digital video can be stored and maintained for reliable footage analysis. The system also includes state-of-the-art features such as stabilization, image enhancement, and convolution to help improve the visibility of subjects in the video without altering underlying footage. Adaptable to many uses, Intergraph#s Video Analyst System meets the stringent demands of the law enforcement industry in the areas of surveillance, crime scene footage, sting operations, and dash-mounted video cameras.

Comparison of the Effects of Video Modeling with Narration vs. Video Modeling on the Functional Skill Acquisition of Adolescents with Autism

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Smith, Molly; Ayres, Kevin; Mechling, Linda; Smith, Katie

2013-01-01

The purpose of this study was to compare the effects of two forms of video modeling: video modeling that includes narration (VMN) and video models without narration (VM) on skill acquisition of four adolescent boys with a primary diagnosis of autism enrolled in an Extended School Year (ESY) summer program. An adapted alternating treatment design…

A bilingual child learns social communication skills through video modeling-a single case study in a norwegian school setting

Directory of Open Access Journals (Sweden)

Meral Özerk

2015-09-01

Full Text Available Video modeling is one of the recognized methods used in the training and teaching of children with Autism Spectrum Disorders (ASD. The model’s theoretical base stems from Albert Bandura's (1977; 1986 social learning theory in which he asserts that children can learn many skills and behaviors observationally through modeling. One can assume that by observing others, a child with ASD can construct an idea of how new behaviors are performed, and on later occasions this mentally and visually constructed information will serve as a guide for his/her way of behaving. There are two types of methods for model learning: 1 In Vivo Modeling and 2 Video Modeling. These can be used a to teach children with ASD skills that are not yet in their behavioral repertoire and / or b to improve the children's emerging behaviors or skills. In the case of linguistic minority children at any stage of their bilingual development, it has been presumed that some of their behaviors that can be interpreted as attitude or culture-related actions. This approach, however, can sometimes delay referral, diagnosis, and intervention. In our project, we used Video Modeling and achieved positive results with regard to teaching social communication skills and target behavior to an eleven year-old bilingual boy with ASD. Our study also reveals that through Video Modeling, children with ASD can learn desirable behavioral skills as by-products. Video Modeling can also contribute positively to the social inclusion of bilingual children with ASD in school settings. In other words, bilingual children with ASD can transfer the social communication skills and targeted behaviors they learn through second-language at school to a first-language milieu.

Music videos, pro wrestling, and acceptance of date rape among middle school males and females: an exploratory analysis.

Science.gov (United States)

Kaestle, Christine Elizabeth; Halpern, Carolyn Tucker; Brown, Jane D

2007-02-01

Exposure to televised music videos and pro wrestling were associated with rape acceptance (lower levels of agreeing with the statement "forcing a partner to have sex is never OK") among males, but not females, in a sample of 904 middle school students (controlling for overall television exposure, parenting style, and demographics).

Building Place: Students' Negotiation of Spaces and Citizenship in Schools

Science.gov (United States)

Tupper, Jennifer A.; Carson, Terry; Johnson, Ingrid; Mangat, Jyoti

2008-01-01

This study explored how high school students negotiate school spaces beyond the classroom within a broader context of citizenship education and identity construction. Using visual hermeneutics, researchers worked over three years with students and staff in a large, diverse, urban, public high school. Through student-produced photographs of school…

Video Games - Did They Begin at Brookhaven

Science.gov (United States)

dropdown arrow Site Map A-Z Index Menu Synopsis Video Games – Did They Begin at Brookhaven? Additional Web program led to the pioneering development of video games. William Higinbotham William Higinbotham First Pong, now Space Invaders, next Star Castle – video games have mesmerized children of at all ages

Transferring Knowledge from a Bird's-Eye View - Earth Observation and Space Travels in Schools

Science.gov (United States)

Rienow, Andreas; Hodam, Henryk; Menz, Gunter; Voß, Kerstin

2014-05-01

In spring 2014, four commercial cameras will be transported by a Dragon spacecraft to the International Space Station (ISS) and mounted to the ESA Columbus laboratory. The cameras will deliver live earth observation data from different angles. The "Columbus-Eye"* project aims at distributing the video and image data produced by those cameras through a web portal. It should primary serve as learning portal for pupils comprising teaching material around the ISS earth observation imagery. The pupils should be motivated to work with the images in order to learn about curriculum relevant topics of natural sciences. The material will be prepared based on the experiences of the FIS* (German abbreviation for "Remote Sensing in Schools") project and its learning portal. Recognizing that in-depth use of satellite imagery can only be achieved by the means of computer aided learning methods, a sizeable number of e-Learning contents in German and English have been created throughout the last 5 years since FIS' kickoff. The talk presents the educational valorization of remote sensing data as well as their interactive implementation for teachers and pupils in both learning portals. It will be shown which possibilities the topic of remote sensing holds ready for teaching the regular curricula of Geography, Biology, Physics, Math and Informatics. Beside the sequenced implementation into digital and interactive teaching units, examples of a richly illustrated encyclopedia as well as easy-to-use image processing tools are given. The presentation finally addresses the question of how synergies of space travels can be used to enhance the fascination of earth observation imagery in the light of problem-based learning in everyday school lessons.

Big Bang! An Evaluation of NASA's Space School Musical Program for Elementary and Middle School Learners

Science.gov (United States)

Haden, C.; Styers, M.; Asplund, S.

2015-12-01

Music and the performing arts can be a powerful way to engage students in learning about science. Research suggests that content-rich songs enhance student understanding of science concepts by helping students develop content-based vocabulary, by providing examples and explanations of concepts, and connecting to personal and situational interest in a topic. Building on the role of music in engaging students in learning, and on best practices in out-of-school time learning, the NASA Discovery and New Frontiers program in association with Jet Propulsion Laboratory, Marshall Space Flight Center, and KidTribe developed Space School Musical. Space School Musical consists of a set of nine songs and 36 educational activities to teach elementary and middle school learners about the solar system and space science through an engaging storyline and the opportunity for active learning. In 2014, NASA's Jet Propulsion Laboratory contracted with Magnolia Consulting, LLC to conduct an evaluation of Space School Musical. Evaluators used a mixed methods approach to address evaluation questions related to educator professional development experiences, program implementation and perceptions, and impacts on participating students. Measures included a professional development feedback survey, facilitator follow-up survey, facilitator interviews, and a student survey. Evaluation results showed that educators were able to use the program in a variety of contexts and in different ways to best meet their instructional needs. They noted that the program worked well for diverse learners and helped to build excitement for science through engaging all learners in the musical. Students and educators reported positive personal and academic benefits to participating students. We present findings from the evaluation and lessons learned about integration of the arts into STEM education.

Trends in Video Game Play through Childhood, Adolescence, and Emerging Adulthood

Directory of Open Access Journals (Sweden)

Geoffrey L. Ream

2013-01-01

Full Text Available This study explored the relationship between video gaming and age during childhood, adolescence, and emerging adulthood. It also examined whether “role incompatibility,” the theory that normative levels of substance use decrease through young adulthood as newly acquired adult roles create competing demands, generalizes to video gaming. Emerging adult video gamers (n=702 recruited from video gaming contexts in New York City completed a computer-assisted personal interview and life-history calendar. All four video gaming indicators—days/week played, school/work day play, nonschool/work day play, and problem play—had significant curvilinear relationships with age. The “shape” of video gaming’s relationship with age is, therefore, similar to that of substance use, but video gaming appears to peak earlier in life than substance use, that is, in late adolescence rather than emerging adulthood. Of the four video gaming indicators, role incompatibility only significantly affected school/work day play, the dimension with the clearest potential to interfere with life obligations.

Trends in Video Game Play through Childhood, Adolescence, and Emerging Adulthood.

Science.gov (United States)

Ream, Geoffrey L; Elliott, Luther C; Dunlap, Eloise

2013-01-01

This study explored the relationship between video gaming and age during childhood, adolescence, and emerging adulthood. It also examined whether "role incompatibility," the theory that normative levels of substance use decrease through young adulthood as newly acquired adult roles create competing demands, generalizes to video gaming. Emerging adult video gamers (n = 702) recruited from video gaming contexts in New York City completed a computer-assisted personal interview and life-history calendar. All four video gaming indicators-days/week played, school/work day play, nonschool/work day play, and problem play-had significant curvilinear relationships with age. The "shape" of video gaming's relationship with age is, therefore, similar to that of substance use, but video gaming appears to peak earlier in life than substance use, that is, in late adolescence rather than emerging adulthood. Of the four video gaming indicators, role incompatibility only significantly affected school/work day play, the dimension with the clearest potential to interfere with life obligations.

Proposed School of Earth And Space Sciences, Hyderabad, India

Science.gov (United States)

Aswathanarayana, U.

2004-05-01

The hallmarks of the proposed school in the University of Hyderabad, Hyderabad,India, would be synergy, inclusivity and globalism. The School will use the synergy between the earth (including oceanic and atmospheric realms), space and information sciences to bridge the digital divide, and promote knowledge-driven and job-led economic development of the country. It will endeavour to (i) provide the basic science underpinnings for Space and Information Technologies, (ii) develop new methodologies for the utilization of natural resources (water, soils, sediments, minerals, biota, etc.)in ecologically-sustainable, employment-generating and economically-viable ways, (iii) mitigate the adverse consequences of natural hazards through preparedness systems,etc. The School will undertake research in the inter-disciplinary areas of earth and space sciences (e.g. climate predictability, satellite remote sensing of soil moisture) and linking integrative science with the needs of the decision makers. It will offer a two-year M.Tech. (four semesters, devoted to Theory, Tools, Applications and Dissertation, respectively ) course in Earth and Space Sciences. The Applications will initially cover eight course clusters devoted to Water Resources Management, Agriculture, Ocean studies, Energy Resources, Urban studies, Environment, Natural Hazards and Mineral Resources Management. The School will also offer a number of highly focused short-term refresher courses / supplementary courses to enable cadres to update their knowledge and skills. The graduates of the School would be able to find employment in macro-projects, such as inter-basin water transfers, and Operational crop condition assessment over large areas, etc. as well as in micro-projects, such as rainwater harvesting, and marketing of remote sensing products to stake-holders (e.g. precision agricultural advice to the farmers, using the large bandwidth of thousands of kilometres of unlit optical fibres). As the School is highly

Using Video in the English Language Clasroom

Directory of Open Access Journals (Sweden)

Amado Vicente

2002-08-01

Full Text Available Video is a popular and a motivating potential medium in schools. Using video in the language classroom helps the language teachers in many different ways. Video, for instance, brings the outside world into the language classroom, providing the class with many different topics and reasons to talk about. It can provide comprehensible input to the learners through contextualised models of language use. It also offers good opportunities to introduce native English speech into the language classroom. Through this article I will try to show what the benefits of using video are and, at the end, I present an instrument to select and classify video materials.

The effects of video-based and activity-based instruction on high school students' knowledge, attitudes, and behavioral intentions related to seat belt use

Science.gov (United States)

Jones, Tudor Griffith, III

The purpose of this study was to determine the effect of video-based science instruction and accompanying activity-based instruction on the knowledge, attitudes, and behavioral intentions of high school students' use of seat belts. Secondarily, the purpose was to determine order effects and interactions between the two treatments used in the study: video-based instruction and hands-on activity-based instruction. The study used Ajzen and Fishbein's theory of reasoned action to investigate the factors influencing high school students' behavioral intentions regarding seat belt use. This study used a pretest-posttest-posttest treatment design. Data were collected on 194 students in high school introductory biology and chemistry classes in Gainesville, Florida. Ten intact high school science classes (eight treatment and two control) took pretests and posttests measuring physics knowledge, attitudes, and behavioral intentions toward seat belt use prior to and after participating in the two treatments. The treatment group students participated in at least 500 minutes of instructional time divided among five lessons over 10 instructional days. All participants were pretested on physics knowledge, attitudes, and behavioral intentions toward seat belt use prior to two treatments. Treatment A was defined as participating in one 50-minute video-based instructional lesson. Treatment B was defined as participating in four hands-on science activities regarding crash-related physics concepts. Cronbach's coefficient alpha was used for analysis of the researcher-designed instruments, and ANOVA was used to analyze the data. The results of the analyses (p young adults.

Handheld CAT Video Game, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — The proposed project is to design, develop and fabricate a handheld video game console for astronauts during long space flight. This portable hardware runs...

Pengaruh penggunaan media video dan gambar terhadap keterampilan menulis kelas V

Directory of Open Access Journals (Sweden)

Dian Mariya Ulfah

2017-01-01

Full Text Available Penelitian ini bertujuan untuk mengetahui (1 pengaruh media video terhadap keterampilan menulis kembali isi cerita siswa kelas V SD pada pembelajaran bahasa Indonesia; (2 pengaruh media gambar terhadap keterampilan menulis kembali isi cerita siswa kelas V SD pada pembelajaran bahasa Indonesia; dan (3 perbedaan pengaruh media video dan gambar terhadap keterampilan menulis kembali isi cerita kelas V SD pada pembelajaran bahasa Indonesia. Jenis penelitian yang digunakan yaitu quasi eksperimen, sedangkan desainnya randomized control-group pretestt-posttestt. Populasi penelitian seluruh siswa kelas V SDN Se-gugus V Kasihan-Bantul, pengambilan sampel dilakukan secara random sampling. Variabel penelitian terdiri dari variabel bebas dan variabel terikat. Teknik pengumpulan data berupa pelaksanan tes unjuk kerja. Instrumen penilaian menulis diukur dengan uji validitas isi dan uji reliabilitas inter-rater. Hasil penelitian menunjukkan bahwa (a media video berpengaruh positif dan signifikan terhadap keterampilan menulis dengan taraf signifikan 0,000 < 0,05; (b media gambar berpengaruh positif dan signifikan terhadap keterampilan menulis dengan taraf signifikan 0,022 < 0,05; dan (c terdapat perbedaan pengaruh media video dan gambar yang signifikan terhadap keterampilan menulis dengan taraf signifikan 0,043 < 0,05. Kata Kunci: media video, media gambar, keterampilan menulis kembali isi cerita   The effectiveness of implementing video and picture media ofwriting skills in fifth grade students of Elementary School Abstract The purpose of this study are to find out (1 the effect of video on writing skills in fifth grade students of Elementary School in Indonesian learning, (2 the of picture series on writing skills in fifth grade students of Elementary School in Indonesian learning, (3 the differences of  video and picture series on writing skills in fifth grade students of Elementary School in Indonesian learning. This study used quasi experimental

Discontinuity minimization for omnidirectional video projections

Science.gov (United States)

Alshina, Elena; Zakharchenko, Vladyslav

2017-09-01

Advances in display technologies both for head mounted devices and television panels demand resolution increase beyond 4K for source signal in virtual reality video streaming applications. This poses a problem of content delivery trough a bandwidth limited distribution networks. Considering a fact that source signal covers entire surrounding space investigation reviled that compression efficiency may fluctuate 40% in average depending on origin selection at the conversion stage from 3D space to 2D projection. Based on these knowledge the origin selection algorithm for video compression applications has been proposed. Using discontinuity entropy minimization function projection origin rotation may be defined to provide optimal compression results. Outcome of this research may be applied across various video compression solutions for omnidirectional content.

Geotail Video News Release

Science.gov (United States)

1992-01-01

The Geotail mission, part of the International Solar Terrestrial Physics (ISTP) program, measures global energy flow and transformation in the magnetotail to increase understanding of fundamental magnetospheric processes. The satellite was launched on July 24, 1992 onboard a Delta II rocket. This video shows with animation the solar wind, and its effect on the Earth. The narrator explains that the Geotail spacecraft was designed and built by the Institute of Space and Astronautical Science (ISAS), the Japanese Space Agency. The mission objectives are reviewed by one of the scientist in a live view. The video also shows an animation of the orbit, while the narrator explains the orbit and the reason for the small launch window.

Developing Teaching Assistants' Skills in Positive Behaviour Management: An Application of Video Interaction Guidance in a Secondary School

Science.gov (United States)

Hayes, Ben; Richardson, Sally; Hindle, Sarah; Grayson, Katy

2011-01-01

This paper reports an action research project in a school in the UK designed to investigate the impact of a brief Video Interaction Guidance (VIG) intervention in promoting skills of non-teaching staff in positive behaviour management. A summary of the literature in relation to VIG is provided before describing the project and data collected. Ten…

Special Needs: Planning for Adulthood (Videos)

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Students' and Teachers' Perceptions of Using Video Games to Enhance Science Instruction

Science.gov (United States)

Marino, Matthew T.; Israel, Maya; Beecher, Constance C.; Basham, James D.

2013-10-01

Science education video game research points toward promising, but inconclusive results in both student learning outcomes and attitudes. However, student-level variables other than gender have been largely absent from this research. This study examined how students' reading ability level and disability status are related to their video game-playing behaviors outside of school and their perceptions about the use of science video games during school. Thirty-four teachers and 876 sixth- through ninth-grade students from 14 states participated in the study. All student groups reported that they would prefer to learn science from a video game rather than from traditional text, laboratory-based, or Internet environments. Chi-square analyses indicated a significant association between reading ability level, disability status, and key areas of interest including students' use of video games outside of school, their perceptions of their scientific abilities, and whether they would pursue a career in the sciences. Implications of these findings and areas for future research are identified.

Ocean Science Video Challenge Aims to Improve Science Communication

Science.gov (United States)

Showstack, Randy

2013-10-01

Given today's enormous management and protection challenges related to the world's oceans, a new competition calls on ocean scientists to effectively communicate their research in videos that last up to 3 minutes. The Ocean 180 Video Challenge, named for the number of seconds in 3 minutes, aims to improve ocean science communication while providing high school and middle school teachers and students with new and interesting educational materials about current science topics.

Digital video clips for improved pedagogy and illustration of scientific research — with illustrative video clips on atomic spectrometry

Science.gov (United States)

Michel, Robert G.; Cavallari, Jennifer M.; Znamenskaia, Elena; Yang, Karl X.; Sun, Tao; Bent, Gary

1999-12-01

This article is an electronic publication in Spectrochimica Acta Electronica (SAE), a section of Spectrochimica Acta Part B (SAB). The hardcopy text is accompanied by an electronic archive, stored on the CD-ROM accompanying this issue. The archive contains video clips. The main article discusses the scientific aspects of the subject and explains the purpose of the video files. Short, 15-30 s, digital video clips are easily controllable at the computer keyboard, which gives a speaker the ability to show fine details through the use of slow motion. Also, they are easily accessed from the computer hard drive for rapid extemporaneous presentation. In addition, they are easily transferred to the Internet for dissemination. From a pedagogical point of view, the act of making a video clip by a student allows for development of powers of observation, while the availability of the technology to make digital video clips gives a teacher the flexibility to demonstrate scientific concepts that would otherwise have to be done as 'live' demonstrations, with all the likely attendant misadventures. Our experience with digital video clips has been through their use in computer-based presentations by undergraduate and graduate students in analytical chemistry classes, and by high school and middle school teachers and their students in a variety of science and non-science classes. In physics teaching laboratories, we have used the hardware to capture digital video clips of dynamic processes, such as projectiles and pendulums, for later mathematical analysis.

Short video interventions to reduce mental health stigma: a multi-centre randomised controlled trial in nursing high schools.

Science.gov (United States)

Winkler, Petr; Janoušková, Miroslava; Kožený, Jiří; Pasz, Jiří; Mladá, Karolína; Weissová, Aneta; Tušková, Eva; Evans-Lacko, Sara

2017-12-01

We aimed to assess whether short video interventions could reduce stigma among nursing students. A multi-centre, randomised controlled trial was conducted. Participating schools were randomly selected and randomly assigned to receive: (1) an informational leaflet, (2) a short video intervention or (3) a seminar involving direct contact with a service user. The Community Attitudes towards Mental Illness (CAMI) and Reported and Intended Behaviour Scale (RIBS) were selected as primary outcome measures. SPANOVA models were built and Cohen's d calculated to assess the overall effects in each of the trial arms. Compared to the baseline, effect sizes immediately after the intervention were small in the flyer arm (CAMI: d = 0.25; RIBS: d = 0.07), medium in the seminar arm (CAMI: d = 0.61; RIBS: d = 0.58), and medium in the video arm (CAMI: d = 0.49 RIBS: d = 0.26; n = 237). Effect sizes at the follow-up were vanishing in the flyer arm (CAMI: d = 0.05; RIBS: d = 0.04), medium in the seminar arm (CAMI: d = 0.43; RIBS: d = 0.26; n = 254), and small in the video arm (CAMI: d = 0.22 RIBS: d = 0.21; n = 237). Seminar had the strongest and relatively stable effect on students' attitudes and intended behaviour, but the effect of short video interventions was also considerable and stable over time. Since short effective video interventions are relatively cheap, conveniently accessible and easy to disseminate globally, we recommend them for further research and development.

Special Needs: Planning for Adulthood (Videos)

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Democratic management and architecture school

Directory of Open Access Journals (Sweden)

Silvana Aparecida de Souza

2011-10-01

Full Text Available It is a conceptual and theoretical research on school organization and its democratization, focusing on one aspect of an objective nature: its architecture. The study was based on the academic literature on democratization and theoretical contribution of Michel Foucault, with regard to the analysis of space as a resourcecontrol, surveillance and training, going through a historical review of the modelconstruction of school buildings in Brazil. It is therefore a sociological analysis of the school environment, in relation to the democratization process of basic education, understood as ensuring that the conditions of access and permanence to a universalquality education, and conceived and gestated from collective interests of its users.We conclude that the architecture of public schools in Brazil do not provides democratic management, either by format controller of buildings constructed in the republican period, either by the current economic priority for the construction of public school buildings, which includes little or no space for collective activities. The character of the buildings remains controller, no more for its architecture, but made possible by technological development, which allows monitoring by video cameras, which is made with the permission and support of community.

Video Golf

Science.gov (United States)

1995-01-01

George Nauck of ENCORE!!! invented and markets the Advanced Range Performance (ARPM) Video Golf System for measuring the result of a golf swing. After Nauck requested their assistance, Marshall Space Flight Center scientists suggested video and image processing/computing technology, and provided leads on commercial companies that dealt with the pertinent technologies. Nauck contracted with Applied Research Inc. to develop a prototype. The system employs an elevated camera, which sits behind the tee and follows the flight of the ball down range, catching the point of impact and subsequent roll. Instant replay of the video on a PC monitor at the tee allows measurement of the carry and roll. The unit measures distance and deviation from the target line, as well as distance from the target when one is selected. The information serves as an immediate basis for making adjustments or as a record of skill level progress for golfers.

Video Journaling as a Method of Reflective Practice

Science.gov (United States)

Parikh, Sejal B.; Janson, Christopher; Singleton, Tiffany

2012-01-01

The purpose of this phenomenological study was to examine seven school counseling students' experiences of creating reflective video journals during their first internship course. Specifically, this study focused on capturing the essence of the experiences related to personal reactions, feelings, and thoughts about creating two video journal…

Three-directional motion compensation-based novel-look-up-table for video hologram generation of three-dimensional objects freely maneuvering in space.

Science.gov (United States)

Dong, Xiao-Bin; Kim, Seung-Cheol; Kim, Eun-Soo

2014-07-14

A new three-directional motion compensation-based novel-look-up-table (3DMC-NLUT) based on its shift-invariance and thin-lens properties, is proposed for video hologram generation of three-dimensional (3-D) objects moving with large depth variations in space. The input 3-D video frames are grouped into a set of eight in sequence, where the first and remaining seven frames in each set become the reference frame (RF) and general frames (GFs), respectively. Hence, each 3-D video frame is segmented into a set of depth-sliced object images (DOIs). Then x, y, and z-directional motion vectors are estimated from blocks and DOIs between the RF and each of the GFs, respectively. With these motion vectors, object motions in space are compensated. Then, only the difference images between the 3-directionally motion-compensated RF and each of the GFs are applied to the NLUT for hologram calculation. Experimental results reveal that the average number of calculated object points and the average calculation time of the proposed method have been reduced compared to those of the conventional NLUT, TR-NLUT and MPEG-NLUT by 38.14%, 69.48%, and 67.41% and 35.30%, 66.39%, and 64.46%, respectively.

Video game playing as a risk factor in adolescence?

OpenAIRE

Lysý, Jan

2013-01-01

Diploma thesis "Video game playing as a risk factor in adolescence?" deals with actuality of risks for children and youth linked to video games. This topic is currently intensively disscused because of cases of high school shootings. There are concerns that violence in video games is connected to rising of children and youth violence. Another risks refered to video games are addiction and obesity. This diploma thesis deals with these risk too. Goal of this thesis is find out if these risks ar...

Probabilistic recognition of human faces from video

DEFF Research Database (Denmark)

Zhou, Saohua; Krüger, Volker; Chellappa, Rama

2003-01-01

Recognition of human faces using a gallery of still or video images and a probe set of videos is systematically investigated using a probabilistic framework. In still-to-video recognition, where the gallery consists of still images, a time series state space model is proposed to fuse temporal...... of the identity variable produces the recognition result. The model formulation is very general and it allows a variety of image representations and transformations. Experimental results using videos collected by NIST/USF and CMU illustrate the effectiveness of this approach for both still-to-video and video-to-video...... information in a probe video, which simultaneously characterizes the kinematics and identity using a motion vector and an identity variable, respectively. The joint posterior distribution of the motion vector and the identity variable is estimated at each time instant and then propagated to the next time...

Video Analytics for Business Intelligence

CERN Document Server

Porikli, Fatih; Xiang, Tao; Gong, Shaogang

2012-01-01

Closed Circuit TeleVision (CCTV) cameras have been increasingly deployed pervasively in public spaces including retail centres and shopping malls. Intelligent video analytics aims to automatically analyze content of massive amount of public space video data and has been one of the most active areas of computer vision research in the last two decades. Current focus of video analytics research has been largely on detecting alarm events and abnormal behaviours for public safety and security applications. However, increasingly CCTV installations have also been exploited for gathering and analyzing business intelligence information, in order to enhance marketing and operational efficiency. For example, in retail environments, surveillance cameras can be utilised to collect statistical information about shopping behaviour and preference for marketing (e.g., how many people entered a shop; how many females/males or which age groups of people showed interests to a particular product; how long did they stay in the sho...

Advantages of video questionnaire in estimating asthma prevalence and risk factors for school children: findings from an asthma survey in American Indian youth.

Science.gov (United States)

Yeh, Fawn; Rhoades, Everett R; Tarpay, Martha; Eichner, June E

2010-09-01

The aims of the present study were to estimate the prevalence and risk factors of asthma among a sample of American Indian youth and to evaluate survey instruments used in determining asthma prevalence and risk factors. Three hundred and fifty-two adolescents aged 9 to 21 years enrolled in an Indian boarding school completed an asthma screening. The survey instruments were a written questionnaire and a video-illustrated questionnaire prepared from the International Study of Asthma and Allergies in Childhood (ISAAC), school health records, and a health questionnaire. Participants also underwent spirometry testing. The prevalence of self-reported asthma varied from 12.7% to 13.4% depending upon the instrument used and the questions asked. A history of hay fever, respiratory infections, and family history of asthma were found to be risk factors for asthma by all instruments. Female gender and living on a reservation were significantly associated with asthma by some, but not all, instruments. Airway obstruction was highly associated with one asthma symptom (wheeze) shown in the video questionnaire. Associations for most risk factors with asthma were strongest for the video questionnaire. The prevalence of self-reported asthma among these American Indian youth was similar to rates reported for other ethnic groups. The video-based questionnaire may be the most sensitive tool for identifying individuals at risk for asthma.

Prevalence of Addiction to the Internet, Computer Games, DVD, and Video and Its Relationship to Anxiety and Depression in a Sample of Iranian High School Students.

Science.gov (United States)

Ahmadi, Jamshid; Amiri, Amin; Ghanizadeh, Ahmad; Khademalhosseini, Mitra; Khademalhosseini, Zeinab; Gholami, Zeinab; Sharifian, Maryam

2014-01-01

The objective of this study was to assess the prevalence of addiction to the Internet, computer games, DVD, and video and its relationship to anxiety and depression in a sample of Iranian high school students. In this cross-sectional study 1020 high school students (males and females) were selected randomly from different areas of Shiraz city in southern Iran. They were interviewed according to the Diagnostic and Statistical Manual of Mental Disorders, 4(th) ed (DSM-IV) criteria. About 50% of the students were females, 277 students (27.2%) were studying in the first year of high school, 242 (23.7%) were in the second year, and others in the third year. The prevalence of anxiety was significantly higher in females than in males (p video CD dependents (p addiction may cause depression and anxiety in high school students. It seems necessary to develop an Internet addiction prevention program for adolescents taking into account the psychological factors such as depression and Internet use habits.

Video Modeling and Word Identification in Adolescents with Autism Spectrum Disorder

Science.gov (United States)

Morlock, Larissa; Reynolds, Jennifer L.; Fisher, Sycarah; Comer, Ronald J.

2015-01-01

Video modeling involves the learner viewing videos of a model demonstrating a target skill. According to the National Professional Development Center on Autism Spectrum Disorders (2011), video modeling is an evidenced-based intervention for individuals with Autism Spectrum Disorder (ASD) in elementary through middle school. Little research exists…

IVth Azores International Advanced School in Space Sciences

CERN Document Server

Santos, Nuno; Monteiro, Mário

2018-01-01

This book presents the proceedings of the IVth Azores International Advanced School in Space Sciences entitled "Asteroseismology and Exoplanets: Listening to the Stars and Searching for New Worlds". The school addressed the topics at the forefront of scientific research being conducted in the fields of asteroseismology and exoplanetary science, two fields of modern astrophysics that share many synergies and resources. These proceedings comprise the contributions from 18 invited lecturers, including both monographic presentations and a number of hands-on tutorials.

The journey to school: Space, geography and experiences of rural ...

African Journals Online (AJOL)

... in dialogue and discussion. The study provided insights into the implications of family dynamics on children's school journey and the meaning of the school journey to the children. It illuminated how children actively define and re-define the varied places, power-laden spaces and social relations embedded in the journey.

Student’s Video Production as Formative Assessment

Directory of Open Access Journals (Sweden)

Eduardo Gama

2017-04-01

Full Text Available Learning assessments are subject of discussion both in their theoretical and practical approaches. The process of measuring learning in physics by high school students, either qualitatively or quantitatively, is one in which it should be possible to identify not only the concepts and contents students failed to achieve but also the reasons for the failure. We propose that students’ video production offers a very effective formative assessment tool to teachers: as a formative assessment, it produces information that allows the understanding of where and when the learning process succeeded or failed, of identifying, as a subject or as a group, the deficiencies or misunderstandings related to the theme under analysis and their interpretation by students, and it provides also a different kind of assessment, related to some other life skills, such as ability to carry on a project till its conclusion and to work cooperatively. In this paper, we describe the use of videos produced by high school students as an assessment resource. The students were asked to prepare a short video, which was then presented to the whole group and discussed. The videos reveal aspects of students’ difficulties that usually do not appear in formal assessments such as tests and questionnaires. After the use of the videos as a component of classroom assessments and the use of the discussions to rethink learning activities in the group, the videos were analysed and classified in various categories. This analysis showed a strong correlation between the technical quality of the video and the content quality of the students’ argumentation. Also, it was shown that the students do not prepare their video based on quick and easy production; they usually choose forms of video production that require careful planning and implementation, and this reflects directly on the overall quality of the video and of the learning process.

Learning from Multiple Sources for Video Summarisation

OpenAIRE

Zhu, Xiatian; Loy, Chen Change; Gong, Shaogang

2015-01-01

Many visual surveillance tasks, e.g.video summarisation, is conventionally accomplished through analysing imagerybased features. Relying solely on visual cues for public surveillance video understanding is unreliable, since visual observations obtained from public space CCTV video data are often not sufficiently trustworthy and events of interest can be subtle. On the other hand, non-visual data sources such as weather reports and traffic sensory signals are readily accessible but are not exp...

Celiac Family Health Education Video Series

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Racialization/Ethnicization of School Emotional Spaces: The Politics of Resentment

Science.gov (United States)

Zembylas, Michalinos

2010-01-01

The present article explores how emotional spaces are racialized and ethnicized in a multicultural elementary school in Cyprus through the majoritized group's feelings of resentment. The data for this article are drawn from a two-month ethnographic study at this school in which the students enrolled come from the two historically conflicting…

Video Game Discourses and Implications for Game-Based Education

Science.gov (United States)

Whitton, Nicola; Maclure, Maggie

2017-01-01

Increasingly prevalent educational discourses promote the use of video games in schools and universities. At the same time, populist discourses persist, particularly in print media, which condemn video games because of putative negative effects on behaviour and socialisation. These contested discourses, we suggest, influence the acceptability of…

The Optimiser: monitoring and improving switching delays in video conferencing

NARCIS (Netherlands)

S. Gunkel (Simon); A.J. Jansen (Jack); I. Kegel; D.C.A. Bulterman (Dick); P.S. Cesar Garcia (Pablo Santiago)

2014-01-01

htmlabstractWith the growing popularity of video communication systems, more people are using group video chat, rather than only one-to-one video calls. In such multi-party sessions, remote participants compete for the available screen space and bandwidth. A common solution is showing the current

A video of Mixed Interaction Space video

DEFF Research Database (Denmark)

Lykke, Olesen, Andreas; Hansen, Thomas Riisgaard; Eriksson, Eva

Mixed Interaction Space is a new concept that uses the mobile phone to interact with either applications on the phone or in the environment by tracking the position and rotation with the camera in 4 dimmension. Most mobile devices today has a camera onboard. In the project about Mixed Interaction...... Spaces we use image processing algorithms to track the movement of the mobile phone according to a fixed point and use this information as input to different applications. We are able to track the movement of the device in 3D plus the rotation of the device and uses these information as a kind of four...... dimensional input device. As a fixed point we use a circle in the first version of Mixis. By tracking the circle we have developed a number of applications that uses this technique as input. Above is three examples....

Study on the Role of Video Educational Games with a Linguistic Approach in English Language Education of the 2nd Grade High School Students

Directory of Open Access Journals (Sweden)

Farzad Jalalian

2018-04-01

Full Text Available The inability of English language learners to recall English concepts is a major challenge faced by teachers. This paper aims to determine the effectiveness of video educational games with a linguistic approach in English language education of the 2nd grade high school students. This is an applied and quasi-experimental study conducted in 2016. For the purpose of this study, we divided the participants into test and control groups and omitted the impacts of covariate (pretest scores measured before execution of any test on the learners. The statistical population consists of 90 students, divided into three groups each consisting of 30 students. Due to the long process of the research, we used availability sampling method in order to minimize the drop in the number of participants. The data was analyzed by SPSS and ANCOVA. The results of this study confirmed that a significant difference exists between English language recalling ability of 2nd grade high school students in test and control groups who are provided with video educational games with and without English language concepts respectively. We concluded that video educational games play an effective role in English language recalling ability of the students. Therefore, it is recommended that video educational games be used for enriching the leisure times of English learners.

Celiac Family Health Education Video Series

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Key Frame Extraction in the Summary Space.

Science.gov (United States)

Li, Xuelong; Zhao, Bin; Lu, Xiaoqiang; Xuelong Li; Bin Zhao; Xiaoqiang Lu; Lu, Xiaoqiang; Li, Xuelong; Zhao, Bin

2018-06-01

Key frame extraction is an efficient way to create the video summary which helps users obtain a quick comprehension of the video content. Generally, the key frames should be representative of the video content, meanwhile, diverse to reduce the redundancy. Based on the assumption that the video data are near a subspace of a high-dimensional space, a new approach, named as key frame extraction in the summary space, is proposed for key frame extraction in this paper. The proposed approach aims to find the representative frames of the video and filter out similar frames from the representative frame set. First of all, the video data are mapped to a high-dimensional space, named as summary space. Then, a new representation is learned for each frame by analyzing the intrinsic structure of the summary space. Specifically, the learned representation can reflect the representativeness of the frame, and is utilized to select representative frames. Next, the perceptual hash algorithm is employed to measure the similarity of representative frames. As a result, the key frame set is obtained after filtering out similar frames from the representative frame set. Finally, the video summary is constructed by assigning the key frames in temporal order. Additionally, the ground truth, created by filtering out similar frames from human-created summaries, is utilized to evaluate the quality of the video summary. Compared with several traditional approaches, the experimental results on 80 videos from two datasets indicate the superior performance of our approach.

The effect of video games on teenagers’ behavior and performance: A cross-sectional study in Tehran

Directory of Open Access Journals (Sweden)

Elham Dirandeh

2016-08-01

Full Text Available Background: The novelty of the present study was to interpret the relation of the videogame usage in teenagers’ behaviors and their performance in schools and distinctive environments.Methods: A total of 508 male and female teenage students were randomly selected from secondary schools of Tehran, the Capital of Iran. The designed questionnaire was completed by student’s parents at the end of school year. School performance and students’ behavior and pattern of using videogames were asked. Descriptive statistics, Contingency coefficient and chi-squared tests were used for data analysis.Results: According to the results, almost all the teenagers were interested in video games and 76.8% of students played video games once in a while. Female students whose mothers were older used video games more often than teenagers whose mothers were younger. Also, male students, whose mothers were housewives and had handheld devices in their rooms, were observed to spend more time playing games. The male students who spent more time playing video games showed more aggression than the others. In addition, female students who played video games quite often, showed abnormal behavior and strange mental status. Both genders showed high percentage of shouting and overeating, when they spent more time playing video games. Conclusion: Playing videogames has a significant effect on teenagers’ behaviors but not on their school performance. Social determinants of health also have significant effect on playing videogames.Keywords: Adolescent; Educational Status; Students; Video Games

The Vector Space as a Unifying Concept in School Mathematics.

Science.gov (United States)

Riggle, Timothy Andrew

The purpose of this study was to show how the concept of vector space can serve as a unifying thread for mathematics programs--elementary school to pre-calculus college level mathematics. Indicated are a number of opportunities to demonstrate how emphasis upon the vector space structure can enhance the organization of the mathematics curriculum.…

Correlates of video games playing among adolescents in an Islamic country

OpenAIRE

Allahverdipour, Hamid; Bazargan, Mohsen; Farhadinasab, Abdollah; Moeini, Babak

2010-01-01

Abstract Background No study has ever explored the prevalence and correlates of video game playing among children in the Islamic Republic of Iran. This study describes patterns and correlates of excessive video game use in a random sample of middle-school students in Iran. Specifically, we examine the relationship between video game playing and psychological well-being, aggressive behaviors, and adolescents' perceived threat of video-computer game playing. Methods This cross-sectional study w...

[Serious video games in pediatrics].

Science.gov (United States)

Drummond, D; Tesnière, A; Hadchouel, A

2018-01-01

Playing video games has been associated with several negative effects in children. However, serious games, which are video games designed for a primary purpose other than pure entertainment, should not be neglected by pediatricians. In the field of public health, some serious games are a means to decrease drug consumption and improve sexual health behavior in adolescents. In schools, serious games can be used to change students' perception of the disease of one of their classmates, or to train students on basic life support. Serious games are also used with patients: they can distract them from a painful procedure, increase their compliance to treatments, or participate in their rehabilitation. Finally, serious games allow healthcare professionals to train on the management of various medical situations without risk. For every field of application, this review presents the rationale of the use of video games, followed by concrete examples of video games and the results of their scientific evaluation. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

Learning basic life support (BLS) with tablet PCs in reciprocal learning at school: are videos superior to pictures? A randomized controlled trial.

Science.gov (United States)

Iserbyt, Peter; Charlier, Nathalie; Mols, Liesbet

2014-06-01

It is often assumed that animations (i.e., videos) will lead to higher learning compared to static media (i.e., pictures) because they provide a more realistic demonstration of the learning task. To investigate whether learning basic life support (BLS) and cardiopulmonary resuscitation (CPR) from video produce higher learning outcomes compared to pictures in reciprocal learning. A randomized controlled trial. A total of 128 students (mean age: 17 years) constituting eight intact classes from a secondary school learned BLS in reciprocal roles of doer and helper with tablet PCs. Student pairs in each class were randomized over a Picture and a Video group. In the Picture group, students learned BLS by means of pictures combined with written instructions. In the Video group, BLS was learned through videos with on-screen instructions. Informational equivalence was assured since instructions in both groups comprised exactly the same words. BLS assessment occurred unannounced, three weeks following intervention. Analysis of variance demonstrated no significant differences in chest compression depths between the Picture group (M=42 mm, 95% CI=40-45) and the Video group (M=39 mm, 95% CI=36-42). In the Picture group significantly higher percentages of chest compressions with correct hand placement were achieved (M=67%, CI=58-77) compared to the Video group (M=53%, CI=43-63), P=.03, η(p)(2)=.03. No other significant differences were found. Results do not support the assumption that videos are superior to pictures for learning BLS and CPR in reciprocal learning. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

The Use of Video Cases in a Multimedia Learning Environment for Facilitating High School Students' Inquiry into a Problem from Varying Perspectives

Science.gov (United States)

Zydney, Janet Mannheimer; Grincewicz, Amy

2011-12-01

This study investigated the connection between the use of video cases within a multimedia learning environment and students' inquiry into a socio-scientific problem. The software program was designed based on principles from the Cognitive Flexibility Theory (CFT) and incorporated video cases of experts with differing perspectives. Seventy-nine 10th-grade students in an urban high school participated in this study. After watching the expert videos, students generated investigative questions and reflected on how their ideas changed over time. This study found a significant correlation between the time students spent watching the expert videos and their ability to consider the problem's perspectives as well as their ability to integrate these perspectives within their questions. Moreover, problem-solving ability and time watching the videos were detected as possible influential predictors of students' consideration of the problem's perspectives within their questions. Although students watched all video cases in equivalent ways, one of the video cases, which incorporated multiple perspectives as opposed to just presenting one perspective, appeared most influential in helping students integrate the various perspectives into their own thinking. A qualitative analysis of students' reflections indicated that many students appreciated the complexity, authenticity, and ethical dimensions of the problem. It also revealed that while the majority of students thought critically about the problem, some students still had naïve or simplistic ways of thinking. This study provided some preliminary evidence that offering students the opportunity to watch videos of different perspectives may influence them to think in alternative ways about a complex problem.

Celiac Family Health Education Video Series

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Radiation Tolerant Software Defined Video Processor, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — MaXentric's is proposing a radiation tolerant Software Define Video Processor, codenamed SDVP, for the problem of advanced motion imaging in the space environment....

Space and place in researching male early high school leaving in ...

African Journals Online (AJOL)

Space and place in researching male early high school leaving in Orange Farm Township. ... South African Journal of Education ... I reflect on the methodological processes underpinning a dissertation that investigated male learners' reasons for leaving high school early and the strategies they employed to negotiate ...

High data-rate video broadcasting over 3G wireless systems

NARCIS (Netherlands)

Atici, C.; Sunay, M.O.

2007-01-01

In cellular environments, video broadcasting is a challenging problem in which the number of users receiving the service and the average successfully decoded video data-rate have to be intelligently optimized. When video is broadcasted using the 3G packet data standard, 1xEV-DO, the code space may

Comparing the Effects of Commercially Available and Custom-Made Video Prompting for Teaching Cooking Skills to High School Students with Autism

Science.gov (United States)

Mechling, Linda C.; Ayres, Kevin M.; Foster, Ashley L.; Bryant, Kathryn J.

2013-01-01

The study compared the effects of using commercially available and custom-made video prompts on the completion of cooking recipes by four high school age males with a diagnosis of autism. An adapted alternating treatments design with continuous baseline, comparison, final treatment, and best treatment condition was used to compare the two…

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Library Spaces for 21st-Century Learners: A Planning Guide for Creating New School Library Concepts

Science.gov (United States)

Sullivan, Margaret

2013-01-01

"Library Spaces for 21st-Century Learners: A Planning Guide for Creating New School Library Concepts" focuses on planning contemporary school library spaces with user-based design strategies. The book walks school librarians and administrators through the process of gathering information from students and other stakeholders involved in…

Video Games and Children: Effects on Leisure Activities, Schoolwork, and Peer Involvement.

Science.gov (United States)

Creasey, Gary L; Myers, Barbara J

1986-01-01

Measures the indirect effect a home video system has on children's leisure activities, school work, and peer contacts. Concludes that owning a video game does not greatly alter a child's activities. (HOD)

Active Video Games in Schools and Effects on Physical Activity and Health: A Systematic Review.

Science.gov (United States)

Norris, Emma; Hamer, Mark; Stamatakis, Emmanuel

2016-05-01

To assess the quality of evidence for the effects of school active video game (AVG) use on physical activity and health outcomes. Online databases (ERIC, PsycINFO, PubMed, SPORTDiscus, and Web of Science) and gray literature were searched. Inclusion criteria were the use of AVGs in school settings as an intervention; assessment of at least 1 health or physical activity outcome; and comparison of outcomes with either a control group or comparison phase. Studies featuring AVGs within complex interventions were excluded. Study quality was assessed using the Effective Public Health Practice Project tool. Twenty-two reports were identified: 11 assessed physical activity outcomes only, 5 assessed motor skill outcomes only, and 6 assessed both physical activity and health outcomes. Nine out of 14 studies found greater physical activity in AVG sessions compared with controls; mostly assessed by objective measures in school time only. Motor skills were found to improve with AVGs vs controls in all studies but not compared with other motor skill interventions. Effects of AVGs on body composition were mixed. Study quality was low in 16 studies and moderate in the remaining 6, with insufficient detail given on blinding, participation rates, and confounding variables. There is currently insufficient evidence to recommend AVGs as efficacious health interventions within schools. Higher quality AVG research utilizing randomized controlled trial designs, larger sample sizes, and validated activity measurements beyond the school day is needed. Copyright © 2016 Elsevier Inc. All rights reserved.

First- and third-party ground truth for key frame extraction from consumer video clips

Science.gov (United States)

Costello, Kathleen; Luo, Jiebo

2007-02-01

Extracting key frames (KF) from video is of great interest in many applications, such as video summary, video organization, video compression, and prints from video. KF extraction is not a new problem. However, current literature has been focused mainly on sports or news video. In the consumer video space, the biggest challenges for key frame selection from consumer videos are the unconstrained content and lack of any preimposed structure. In this study, we conduct ground truth collection of key frames from video clips taken by digital cameras (as opposed to camcorders) using both first- and third-party judges. The goals of this study are: (1) to create a reference database of video clips reasonably representative of the consumer video space; (2) to identify associated key frames by which automated algorithms can be compared and judged for effectiveness; and (3) to uncover the criteria used by both first- and thirdparty human judges so these criteria can influence algorithm design. The findings from these ground truths will be discussed.

Human recognition in a video network

Science.gov (United States)

Bhanu, Bir

2009-10-01

Video networks is an emerging interdisciplinary field with significant and exciting scientific and technological challenges. It has great promise in solving many real-world problems and enabling a broad range of applications, including smart homes, video surveillance, environment and traffic monitoring, elderly care, intelligent environments, and entertainment in public and private spaces. This paper provides an overview of the design of a wireless video network as an experimental environment, camera selection, hand-off and control, anomaly detection. It addresses challenging questions for individual identification using gait and face at a distance and present new techniques and their comparison for robust identification.

Features for detecting smoke in laparoscopic videos

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Jalal Nour Aldeen

2017-09-01

Full Text Available Video-based smoke detection in laparoscopic surgery has different potential applications, such as the automatic addressing of surgical events associated with the electrocauterization task and the development of automatic smoke removal. In the literature, video-based smoke detection has been studied widely for fire surveillance systems. Nevertheless, the proposed methods are insufficient for smoke detection in laparoscopic videos because they often depend on assumptions which rarely hold in laparoscopic surgery such as static camera. In this paper, ten visual features based on motion, texture and colour of smoke are proposed and evaluated for smoke detection in laparoscopic videos. These features are RGB channels, energy-based feature, texture features based on gray level co-occurrence matrix (GLCM, HSV colour space feature, features based on the detection of moving regions using optical flow and the smoke colour in HSV colour space. These features were tested on four laparoscopic cholecystectomy videos. Experimental observations show that each feature can provide valuable information in performing the smoke detection task. However, each feature has weaknesses to detect the presence of smoke in some cases. By combining all proposed features smoke with high and even low density can be identified robustly and the classification accuracy increases significantly.

Designing After-School Learning Using the Massively Multiplayer Online Role-Playing Game

Science.gov (United States)

King, Elizabeth M.

2015-01-01

Digital games have become popular for engaging students in a range of learning goals, both in the classroom and the after-school space. In this article, I discuss a specific genre of video game, the massively multiplayer online role-playing game (MMO), which has been identified as a dynamic environment for encountering 21st-century workplace…

Solar Space and Water Heating for School -- Dallas, Texas

Science.gov (United States)

1982-01-01

90 page report gives overview of retrofitted solar space-heating and hot-water system installation for 61-year-old high school. Description, specifications, modifications, plan drawings for roof, three floors, basement, correspondence, and documents are part of report.

Investigating the Impact of Schools' Open Space on Learning and Educational Achievement of Elementary Students

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Abdolreza Gilavand

2016-04-01

Full Text Available Background It is obvious that most of informal learnings of social skills and constructive plays occur in school yards and play-fields where children spend much of their non-official time of teaching. This study aimed to investigate the impact of schools' open space on learning and educational achievement of elementary students in Ahvaz, Southwest of Iran. Materials and Methods At a cross-sectional study, 210 students were selected randomly as sample of study. Data collection tools included Hermance’s achievement motivation questionnaire and researcher-constructed questionnaire (observation checklist to examine the physical parameters of learning schools' open space and interviews with students. Data of study were analyzed in SPSS- 21 software. Results Results of this study showed that schools' open space has a significant impact on learning and academic achievement of elementary school students in Ahvaz- Iran (P

The Student Video Productions Handbook. A Guide to Planning and Teaching Student Video Productions.

Science.gov (United States)

Druce, Michael; Walker, Bob, Ed.

This handbook provides novice video production teachers with a basic course outline containing information, activities, and lessons for use with high school students in an introductory television course. The contents are divided into five major sections: (1) before class begins, (2) preproduction, (3) production, (4) postproduction, and (5) the…

Practice development using video-reflexive ethnography: promoting safe space(s towards the end of life in hospital

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Aileen Collier

2016-05-01

Full Text Available Background: There is international consensus of the need for improved palliative and end-of-life care in hospital settings. What is less clear is how such improvements might be realised in practice. Research and practice improvement methodologies need to acknowledge the relational, spiritual, moral and ethical as well as physical dimensions of death and dying if improvements in care are to be achieved. Aims and objectives: The aim of this article is to explore the potential of video-reflexive ethnography as a practice development methodology to improve care of people with a life-limiting illness in the hospital setting. Methods: The study used video-reflexive ethnography and was underpinned by an indigenous research ethical framework. Findings: Study findings highlight the potential of video-reflexive ethnography as a practice development methodology. The reach of video extended internally and externally beyond immediate practice research sites to make hospital dying tangible. The research acted as a disruptive innovation, foregrounding peoples’ (patients and families expertise as well as that of healthcare workers. For some patient and family participants, the research offered a visual legacy. Conclusions: The theories underpinning video-reflexive ethnography and practice development are closely aligned; the former has potential as a practice development methodology to promote person-centred palliative and end-of-life care. The underpinning philosophical, ethical and values framework through which it is applied, along with the skills and aptitude of facilitation, are critical if its potential is to be realised. Implications for practice development: The delivery of person-centred end-of-life care may be facilitated by: Healthcare workers seeing themselves and those they care for differently Healthcare organisations seeing their employees as well as patients and families differently Researchers also being prepared to see themselves differently

Special Needs: Planning for Adulthood (Videos)

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Special Needs: Planning for Adulthood (Videos)

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Situations of violence in school spaces: the voice of students

Directory of Open Access Journals (Sweden)

Maíra Darido

2013-11-01

Full Text Available The article aims to outline the situations of violence and vulnerability faced by young people in schools. To understand the scenario transposition of everyday violence for school spaces has become critical analysis of the phenomenon by a new perception in the voice of the students. Thus, from the application of semi-structured questionnaires for young people between 15 and 17 years was possible closer to the diagnosis. The notes, in the end, gave birth to a path of joint efforts between the school and the community providing reflections on the subject.

Video quality pooling adaptive to perceptual distortion severity.

Science.gov (United States)

Park, Jincheol; Seshadrinathan, Kalpana; Lee, Sanghoon; Bovik, Alan Conrad

2013-02-01

It is generally recognized that severe video distortions that are transient in space and/or time have a large effect on overall perceived video quality. In order to understand this phenomena, we study the distribution of spatio-temporally local quality scores obtained from several video quality assessment (VQA) algorithms on videos suffering from compression and lossy transmission over communication channels. We propose a content adaptive spatial and temporal pooling strategy based on the observed distribution. Our method adaptively emphasizes "worst" scores along both the spatial and temporal dimensions of a video sequence and also considers the perceptual effect of large-area cohesive motion flow such as egomotion. We demonstrate the efficacy of the method by testing it using three different VQA algorithms on the LIVE Video Quality database and the EPFL-PoliMI video quality database.

Practicality in Virtuality: Finding Student Meaning in Video Game Education

Science.gov (United States)

Barko, Timothy; Sadler, Troy D.

2013-01-01

This paper looks at the conceptual differences between video game learning and traditional classroom and laboratory learning. It explores the notion of virtual experience by comparing a commonly used high school laboratory protocol on DNA extraction with a similar experience provided by a biotechnology themed video game. When considered…

Dexter Time: The Space, Time, and Matterings of School Absence Registration

Science.gov (United States)

Bodén, Linnea

2016-01-01

Working with a posthumanist approach, this article explores how the computer software Dexter, used for the registration of students' absences and presences, is part of the production of different practices of time, place, space, and matter in Swedish schools. The empirical material engaged with comes from two schools, and the students involved are…

Integration of Active Video Games in Extracurricular Activity at Schools

Science.gov (United States)

Lee, Jung Eun; Huang, Charles; Pope, Zachary; Gao, Zan

2015-01-01

Active video games require players to be physically active. Dance Dance Revolution (DDR) is an interactive dancing game that requires fast-foot movement coordinated with energetic music and visuals. The Wii and Xbox Kinect games have also become good active video games for the promotion of physical activity participation. These games are much more…

Special Needs: Planning for Adulthood (Videos)

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Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia.

Science.gov (United States)

Saquib, Nazmus; Saquib, Juliann; Wahid, AbdulWaris; Ahmed, Abdulrahman Akmal; Dhuhayr, Hamad Emad; Zaghloul, Mohamed Saddik; Ewid, Mohammed; Al-Mazrou, Abdulrahman

2017-12-01

Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in the International Schools in Buraidah, Al-Qassim. Students who returned signed consent forms from their parents filled out a self-administered questionnaire that included validated scales on addiction to video games, general health, and lifestyle. The proportion between the sexes and the schools were roughly equal. Around 32% were overweight or obese, 75% had screen time ≥ 2 h/day, and 20% slept addicted to video games and 54% had psychological distress. Addiction to video games was strongly associated with psychological distress (OR = 4.1, 95% CI = 1.80, 9.47). Other significant correlates were female gender, higher screen time, and shorter sleep hours. The proportion of students with psychological distress was high. Future studies should investigate other potential correlates of distress such personal traits, family relations, and academic performance.

Perception Of Space, Empathy And Cognitive Processes: Design Of A Video Game For The Measurement Of Perspective Taking Skills

Directory of Open Access Journals (Sweden)

Pio Alfredo Di Tore

2014-04-01

Full Text Available The perspective-taking skills require the ability to manipulate spatial reference systems and are the basis of the empathetic process. Empathy, in its relations with space representation and manipulation of spatial reference systems, is the investigation subject of this work, whose aim is the design of a videogame aimed at the measurement of the player's perspective taking skills. The idea of creating a video game on perspective taking is based on a classic Piagetian task, the three mountains problem, object of recent attention by the Italian scientific community that is involved in research in education. The current stage of the project has produced a video game, now in alpha testing release. The article discusses the software theoretical framework (spatial theory of empathy, describes the choices made in the design stage and comment on first results obtained during the alpha testing.

Challenges and opportunities: using a science-based video game in secondary school settings

Science.gov (United States)

Muehrer, Rachel; Jenson, Jennifer; Friedberg, Jeremy; Husain, Nicole

2012-12-01

Simulations and games are not new artifacts to the study of science in secondary school settings (Hug, Kriajcik and Marx 2005), however teachers remain skeptical as to their value, use and appropriateness (Rice 2006). The difficulty is not only the design and development of effective play environments that produce measurable changes in knowledge and/or understanding, but also in their on-the-ground use (Jaipal and Figg 2010). This paper reports on the use of a science-focused video game in five very different secondary school settings in Ontario, Canada. A mixed-methods approach was used in the study, and included data gathered on general gameplay habits and technology use, as well as informal interviews with teachers and students who played the game. In total, 161 participants played a series of games focused on the "life of a plant", and were given both a pre and post quiz to determine if the game helped them retain and/or change what they knew about scientific processes like plant cell anatomy and photosynthesis. Participants showed statistically significant improvement on quizzes that were taken after playing the game for approximately one-hour sessions, despite difficulties in some cases both accessing and playing the game for the full hour. Our findings also reveal the ongoing challenges in making use of technology in a variety of school sessions, even when using a browser-based game, that demanded very little other than a reliable internet connection.

High efficiency video coding (HEVC) algorithms and architectures

CERN Document Server

Budagavi, Madhukar; Sullivan, Gary

2014-01-01

This book provides developers, engineers, researchers and students with detailed knowledge about the High Efficiency Video Coding (HEVC) standard. HEVC is the successor to the widely successful H.264/AVC video compression standard, and it provides around twice as much compression as H.264/AVC for the same level of quality. The applications for HEVC will not only cover the space of the well-known current uses and capabilities of digital video – they will also include the deployment of new services and the delivery of enhanced video quality, such as ultra-high-definition television (UHDTV) and video with higher dynamic range, wider range of representable color, and greater representation precision than what is typically found today. HEVC is the next major generation of video coding design – a flexible, reliable and robust solution that will support the next decade of video applications and ease the burden of video on world-wide network traffic. This book provides a detailed explanation of the various parts ...

2015 Los Alamos Space Weather Summer School Research Reports

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Cowee, Misa [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Chen, Yuxi [Univ. of Michigan, Ann Arbor, MI (United States); Desai, Ravindra [Univ. College London, Bloomsbury (United Kingdom); Hassan, Ehab [Univ. of Texas, Austin, TX (United States); Kalmoni, Nadine [Univ. College London, Bloomsbury (United Kingdom); Lin, Dong [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Depascuale, Sebastian [Univ. of Iowa, Iowa City, IA (United States); Hughes, Randall Scott [Univ. of Southern California, Los Angeles, CA (United States); Zhou, Hong [Univ. of Colorado, Boulder, CO (United States)

2015-11-24

The fifth Los Alamos Space Weather Summer School was held June 1st - July 24th, 2015, at Los Alamos National Laboratory (LANL). With renewed support from the Institute of Geophysics, Planetary Physics, and Signatures (IGPPS) and additional support from the National Aeronautics and Space Administration (NASA) and the Department of Energy (DOE) Office of Science, we hosted a new class of five students from various U.S. and foreign research institutions. The summer school curriculum includes a series of structured lectures as well as mentored research and practicum opportunities. Lecture topics including general and specialized topics in the field of space weather were given by a number of researchers affiliated with LANL. Students were given the opportunity to engage in research projects through a mentored practicum experience. Each student works with one or more LANL-affiliated mentors to execute a collaborative research project, typically linked with a larger ongoing research effort at LANL and/or the student’s PhD thesis research. This model provides a valuable learning experience for the student while developing the opportunity for future collaboration. This report includes a summary of the research efforts fostered and facilitated by the Space Weather Summer School. These reports should be viewed as work-in-progress as the short session typically only offers sufficient time for preliminary results. At the close of the summer school session, students present a summary of their research efforts. Titles of the papers included in this report are as follows: Full particle-in-cell (PIC) simulation of whistler wave generation, Hybrid simulations of the right-hand ion cyclotron anisotropy instability in a sub-Alfvénic plasma flow, A statistical ensemble for solar wind measurements, Observations and models of substorm injection dispersion patterns, Heavy ion effects on Kelvin-Helmholtz instability: hybrid study, Simulating plasmaspheric electron densities with a two

2015 Los Alamos Space Weather Summer School Research Reports

International Nuclear Information System (INIS)

Cowee, Misa; Chen, Yuxi; Desai, Ravindra; Hassan, Ehab; Kalmoni, Nadine; Lin, Dong; Depascuale, Sebastian; Hughes, Randall Scott; Zhou, Hong

2015-01-01

The fifth Los Alamos Space Weather Summer School was held June 1st - July 24th, 2015, at Los Alamos National Laboratory (LANL). With renewed support from the Institute of Geophysics, Planetary Physics, and Signatures (IGPPS) and additional support from the National Aeronautics and Space Administration (NASA) and the Department of Energy (DOE) Office of Science, we hosted a new class of five students from various U.S. and foreign research institutions. The summer school curriculum includes a series of structured lectures as well as mentored research and practicum opportunities. Lecture topics including general and specialized topics in the field of space weather were given by a number of researchers affiliated with LANL. Students were given the opportunity to engage in research projects through a mentored practicum experience. Each student works with one or more LANL-affiliated mentors to execute a collaborative research project, typically linked with a larger ongoing research effort at LANL and/or the student's PhD thesis research. This model provides a valuable learning experience for the student while developing the opportunity for future collaboration. This report includes a summary of the research efforts fostered and facilitated by the Space Weather Summer School. These reports should be viewed as work-in-progress as the short session typically only offers sufficient time for preliminary results. At the close of the summer school session, students present a summary of their research efforts. Titles of the papers included in this report are as follows: Full particle-in-cell (PIC) simulation of whistler wave generation, Hybrid simulations of the right-hand ion cyclotron anisotropy instability in a sub-Alfv@@nic plasma flow, A statistical ensemble for solar wind measurements, Observations and models of substorm injection dispersion patterns, Heavy ion effects on Kelvin-Helmholtz instability: hybrid study, Simulating plasmaspheric electron densities with a

Video Game Strategies as Predictors of Academic Achievement

Science.gov (United States)

Hamlen, Karla R.

2014-01-01

The purpose of this study was to investigate relationships between strategies students use to overcome challenges in both video games and homework assignments, and whether or not these are predictors of academic performance in school. Data were collected through an online survey of students, primarily in middle and high school, assessing both…

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Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia

Directory of Open Access Journals (Sweden)

Nazmus Saquib

2017-12-01

Full Text Available Introduction: Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. Methods: The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in the International Schools in Buraidah, Al-Qassim. Students who returned signed consent forms from their parents filled out a self-administered questionnaire that included validated scales on addiction to video games, general health, and lifestyle. Results: The proportion between the sexes and the schools were roughly equal. Around 32% were overweight or obese, 75% had screen time≥2h/day, and 20% slept<5h/night. Sixteen per cent (16% were addicted to video games and 54% had psychological distress. Addiction to video games was strongly associated with psychological distress (OR=4.1, 95% CI=1.80, 9.47. Other significant correlates were female gender, higher screen time, and shorter sleep hours. Conclusions: The proportion of students with psychological distress was high. Future studies should investigate other potential correlates of distress such personal traits, family relations, and academic performance. Keywords: Video games, Addiction, Adolescent, Psychological distress, Screen time, Saudi Arabia

Effects of video-game ownership on young boys' academic and behavioral functioning: a randomized, controlled study.

Science.gov (United States)

Weis, Robert; Cerankosky, Brittany C

2010-04-01

Young boys who did not own video games were promised a video-game system and child-appropriate games in exchange for participating in an "ongoing study of child development." After baseline assessment of boys' academic achievement and parent- and teacher-reported behavior, boys were randomly assigned to receive the video-game system immediately or to receive the video-game system after follow-up assessment, 4 months later. Boys who received the system immediately spent more time playing video games and less time engaged in after-school academic activities than comparison children. Boys who received the system immediately also had lower reading and writing scores and greater teacher-reported academic problems at follow-up than comparison children. Amount of video-game play mediated the relationship between video-game ownership and academic outcomes. Results provide experimental evidence that video games may displace after-school activities that have educational value and may interfere with the development of reading and writing skills in some children.

Methodology and results of a space station education pilot programme in the primary school

Science.gov (United States)

Mirra, G.; Mirra, C.

Potential users of the Space Station Freedom are now still in the Primary School. Subject studies 1 have shown that a robust familiarization programme has to be developed in order to increase public awareness on the microgravity environment and its capabilities to perform unique science. At the same time, several surveys 2 have demonstrated that elementary school students are showing the greatest interest and enthusiasm in space related activities among all school students. With these boundary conditions, a pilot programme, aimed at verifying the capabilities of young primary school pupils (aged between 10 and 12) in understanding why one performs research in space, has been conceived. In order to overcome the lack of space training of school teachers, an expert in space operations joined a group of elementary teachers to activate this program: merging the necessary didactic and technical capabilities. Consequently, the aim of the program becomes two folded: •generate critical thinking and problem solving capacities as well as inventiveness in children making them aware on the use of space to improve life on Earth. •identify the key issues for the definition of a robust space utilization educational programme. The programme has been managed by MARS Center. the Italian User Support Center for the Space Station utilization, and the institute "Speranzas" in the nearby of Naples, Italy. MARS Center, in particular, is responsible towards the national agency ASI, Agenzia Spaziale Italiana, of the execution of the promotional activity towards all the possible target groups: young students are among these groups. This programme started in late 1992 and is currently ongoing. The objective of this paper is to provide a description of the methodology and the reasons of such a programme with a snapshot on the preliminary results and future trends. Means used as supporting tools, such as films, posters and role plays are herein depicted as well as statistics on the pupils

Violent Video Games and Children’s Aggressive Behaviors

OpenAIRE

Luca Milani; Elena Camisasca; Simona C. S. Caravita; Chiara Ionio; Sarah Miragoli; Paola Di Blasio

2015-01-01

The literature provides some evidence that the use of violent video games increases the risk for young people to develop aggressive cognitions and even behaviors. We aimed to verify whether exposure to violent video games is linked to problems of aggression in a sample of Italian children. Four questionnaires were administered to 346 children between 7 and 14 years of age, attending primary and secondary schools in Nor...

A Method for Estimating Surveillance Video Georeferences

Directory of Open Access Journals (Sweden)

Aleksandar Milosavljević

2017-07-01

Full Text Available The integration of a surveillance camera video with a three-dimensional (3D geographic information system (GIS requires the georeferencing of that video. Since a video consists of separate frames, each frame must be georeferenced. To georeference a video frame, we rely on the information about the camera view at the moment that the frame was captured. A camera view in 3D space is completely determined by the camera position, orientation, and field-of-view. Since the accurate measuring of these parameters can be extremely difficult, in this paper we propose a method for their estimation based on matching video frame coordinates of certain point features with their 3D geographic locations. To obtain these coordinates, we rely on high-resolution orthophotos and digital elevation models (DEM of the area of interest. Once an adequate number of points are matched, Levenberg–Marquardt iterative optimization is applied to find the most suitable video frame georeference, i.e., position and orientation of the camera.

Multimedia in physics education: teaching videos about aero and fluid dynamics

International Nuclear Information System (INIS)

Wagner, Andreas; Altherr, Stefan; Eckert, Bodo; Jodl, Hans Joerg

2007-01-01

In a series of letters, we present teaching videos on topics which are difficult to understand for students, or which are difficult to realize experimentally in school, if at all. These videos can be used for quantitative analysis or visualization of phenomena. Here we present videos on aero and fluid dynamics which deal with the Navier-Stokes equation, the continuity equation and Karman's vortex street. (letters and comments)

Lesson Plan Prototype for International Space Station's Interactive Video Education Events

Science.gov (United States)

Zigon, Thomas

1999-01-01

The outreach and education components of the International Space Station Program are creating a number of materials, programs, and activities that educate and inform various groups as to the implementation and purposes of the International Space Station. One of the strategies for disseminating this information to K-12 students involves an electronic class room using state of the art video conferencing technology. K-12 classrooms are able to visit the JSC, via an electronic field trip. Students interact with outreach personnel as they are taken on a tour of ISS mockups. Currently these events can be generally characterized as: Being limited to a one shot events, providing only one opportunity for students to view the ISS mockups; Using a "one to many" mode of communications; Using a transmissive, lecture based method of presenting information; Having student interactions limited to Q&A during the live event; Making limited use of media; and Lacking any formal, performance based, demonstration of learning on the part of students. My project involved developing interactive lessons for K-12 students (specifically 7th grade) that will reflect a 2nd generation design for electronic field trips. The goal of this design will be to create electronic field trips that will: Conform to national education standards; More fully utilize existing information resources; Integrate media into field trip presentations; Make support media accessible to both presenters and students; Challenge students to actively participate in field trip related activities; and Provide students with opportunities to demonstrate learning

Using Video Modeling with Voice-over Instruction to Train Public School Staff to Implement a Preference Assessment.

Science.gov (United States)

Bovi, Gina M Delli; Vladescu, Jason C; DeBar, Ruth M; Carroll, Regina A; Sarokoff, Randi A

2017-03-01

The identification of putative reinforcers is a critical component of programming for individuals with disabilities. A multiple stimulus without replacement preference assessment is one option for identifying putative reinforcers; however, staff must be trained on the steps necessary to conduct the assessment for it to be useful in practice. This study examined the effectiveness of using video modeling with voice-over instruction (VMVO) to train two public school staff to conduct this assessment. Results demonstrate that VMVO was effective in training, producing generalized responding, maintenance, and high social validity ratings.

Remote control video cameras on a suborbital rocket

International Nuclear Information System (INIS)

Wessling, Francis C.

1997-01-01

Three video cameras were controlled in real time from the ground to a sub-orbital rocket during a fifteen minute flight from White Sands Missile Range in New Mexico. Telemetry communications with the rocket allowed the control of the cameras. The pan, tilt, zoom, focus, and iris of two of the camera lenses, the power and record functions of the three cameras, and also the analog video signal that would be sent to the ground was controlled by separate microprocessors. A microprocessor was used to record data from three miniature accelerometers, temperature sensors and a differential pressure sensor. In addition to the selected video signal sent to the ground and recorded there, the video signals from the three cameras also were recorded on board the rocket. These recorders were mounted inside the pressurized segment of the rocket payload. The lenses, lens control mechanisms, and the three small television cameras were located in a portion of the rocket payload that was exposed to the vacuum of space. The accelerometers were also exposed to the vacuum of space

Electronic evaluation for video commercials by impression index.

Science.gov (United States)

Kong, Wanzeng; Zhao, Xinxin; Hu, Sanqing; Vecchiato, Giovanni; Babiloni, Fabio

2013-12-01

How to evaluate the effect of commercials is significantly important in neuromarketing. In this paper, we proposed an electronic way to evaluate the influence of video commercials on consumers by impression index. The impression index combines both the memorization and attention index during consumers observing video commercials by tracking the EEG activity. It extracts features from scalp EEG to evaluate the effectiveness of video commercials in terms of time-frequency-space domain. And, the general global field power was used as an impression index for evaluation of video commercial scenes as time series. Results of experiment demonstrate that the proposed approach is able to track variations of the cerebral activity related to cognitive task such as observing video commercials, and help to judge whether the scene in video commercials is impressive or not by EEG signals.

Rad World -- computer-animated video radiation and hazardous waste-management science curriculum

International Nuclear Information System (INIS)

Powell, B.

1996-01-01

The Rad World computer-animated video and curriculum materials were developed through a grant from the Waste-management Education and Research Consortium. The package, which includes a computer-animated video, hands-on activities, and multidisciplinary lessons concerning radiation and hazardous-waste management, was created to approach these subjects in an informative, yet entertaining, manner. The lessons and video, designed to supplement studies of energy and physical science at the middle school and high school level, also implement quality and consistent science education as outlined by the New Mexico Science Standards and Benchmarks (1995). Consistent with the curriculum standards and benchmarks, the curriculum includes library research, collaborative learning, hands-on-science, and discovery learning. Pre- and post-tests are included

Live Ultra-High Definition from the International Space Station

Science.gov (United States)

Grubbs, Rodney; George, Sandy

2017-01-01

The first ever live downlink of Ultra-High Definition (UHD) video from the International Space Station (ISS) was the highlight of a 'Super Session' at the National Association of Broadcasters (NAB) in April 2017. The Ultra-High Definition video downlink from the ISS all the way to the Las Vegas Convention Center required considerable planning, pushed the limits of conventional video distribution from a space-craft, and was the first use of High Efficiency Video Coding (HEVC) from a space-craft. The live event at NAB will serve as a pathfinder for more routine downlinks of UHD as well as use of HEVC for conventional HD downlinks to save bandwidth. HEVC may also enable live Virtual Reality video downlinks from the ISS. This paper will describe the overall work flow and routing of the UHD video, how audio was synchronized even though the video and audio were received many seconds apart from each other, and how the demonstration paves the way for not only more efficient video distribution from the ISS, but also serves as a pathfinder for more complex video distribution from deep space. The paper will also describe how a 'live' event was staged when the UHD coming from the ISS had a latency of 10+ seconds. Finally, the paper will discuss how NASA is leveraging commercial technologies for use on-orbit vs. creating technology as was required during the Apollo Moon Program and early space age.

Impulsivity, self-regulation,and pathological video gaming among youth: testing a mediation model.

Science.gov (United States)

Liau, Albert K; Neo, Eng Chuan; Gentile, Douglas A; Choo, Hyekyung; Sim, Timothy; Li, Dongdong; Khoo, Angeline

2015-03-01

Given the potential negative mental health consequences of pathological video gaming, understanding its etiology may lead to useful treatment developments. The purpose of the study was to examine the influence of impulsive and regulatory processes on pathological video gaming. Study 1 involved 2154 students from 6 primary and 4 secondary schools in Singapore. Study 2 involved 191 students from 2 secondary schools. The results of study 1 and study 2 supported the hypothesis that self-regulation is a mediator between impulsivity and pathological video gaming. Specifically, higher levels of impulsivity was related to lower levels of self-regulation, which in turn was related to higher levels of pathological video gaming. The use of impulsivity and self-regulation in predicting pathological video gaming supports the dual-system model of incorporating both impulsive and reflective systems in the prediction of self-control outcomes. The study highlights the development of self-regulatory resources as a possible avenue for future prevention and treatment research. © 2011 APJPH.

Violent Video Games and Children’s Aggressive Behaviors

Directory of Open Access Journals (Sweden)

Luca Milani

2015-08-01

Full Text Available The literature provides some evidence that the use of violent video games increases the risk for young people to develop aggressive cognitions and even behaviors. We aimed to verify whether exposure to violent video games is linked to problems of aggression in a sample of Italian children. Four questionnaires were administered to 346 children between 7 and 14 years of age, attending primary and secondary schools in Northern Italy. Variables measured were externalization, quality of interpersonal relationships, aggression, quality of coping strategies, and parental stress. Participants who preferred violent games showed higher scores for externalization and aggression. The use of violent video games and age were linked to higher levels of aggression, coping strategies, and the habitual video game weekly consumption of participants. Our data confirm the role of violent video games as risk factors for problems of aggressive behavior and of externalization in childhood and early adolescence.

The Effect of Music in Video Mediated Instruction on Student Achievement.

Science.gov (United States)

Talabi, J. K.

1986-01-01

Describes a study of secondary school students in Nigeria to determine whether use of musical accompaniment on videotape recordings used in instruction of economic geography had any effects on students' learning. Results offer inconclusive differences in effect between video instruction accompanied by music and video instruction without music.…

Pre-service teachers’ meaning-making when collaboratively analysing video from school practice for the bachelor project at college

DEFF Research Database (Denmark)

Nielsen, Birgitte Lund

2015-01-01

The study follows a group of student teachers (STs) facilitated in collaboratively analysing video recordings of their school practice experiences, required for their bachelor projects. Their meaning-making is examined in terms of what they experienced as outcomes, how they constructed...... understanding and how their interpretation of classroom experiences developed. The findings reveal that the structured collaborative analysis supported the STs in a more nuanced consideration of concrete incidents and in reconstructing their experiences with a focus on student learning. They noted the benefit...... of the peer support and had a positive view of the structured approach. Additionally, they emphasised insights gained by starting from a fine-grained analysis of concrete problems encountered in their school practice before applying theory. They did, however, resort to more general abstractions...

Celiac Family Health Education Video Series

Science.gov (United States)

... Free Baking School Eating Out Away From Home Emotional Adjustment Kids Speak Research and Innovation Contact Us Celiac Disease Program | Videos Boston Children's Hospital will teach you and your family about a healthful celiac lifestyle. Education is key in making parents feel more at ...

New astrophysical school of thermodynamics. Space dynamics and gravitism

Energy Technology Data Exchange (ETDEWEB)

Gal-Or, B [Technion-Israel Inst. of Tech., Haifa. Dept. of Aeronautical Engineering

1978-07-01

Much verified information has been accumulated in recent years which shows that many fundamental concepts involving classical physics, thermodynamics, astrophysics and the general theory of relativity are strongly coupled together. This evidence is employed in this paper to explain principles of the astrophysical school of thermodynamics; a growing revolutionary school which deduces thermodynamics, energy dissipation, and time anisotropies from the Newtonian and Einsteinian theories of gravitation and from the dynamics of radiation in 'unsaturable' (intercluster) space. Accordingly, the density of radiation and the dynamics of ('unsaturable') outer space affect all processes in the galactic media, in the solar system, in the magnetosphere and on Earth. The origin of all observed irreversibilities in nature - of time, of all time anisotropics, of energy dissipation, of T-violations in 'elementary particles', of retarded potentials in electrodynamics, of the biological clocks, and of biological arrows of time - is one; it is the radiation unsaturability of space. But, since this unsaturability and gravitation are interconnected, the origin of asymmetries, structure, and thermodynamics is explained within the framework of the Newtonian and Einsteinian theories of gravitation. The theory presented here forms a part of a general approach called gravitism, which unifies some other disciplinary studies in the natural sciences with a unified approach to gravitation and the theory of time.

Video Game Playing and Academic Performance in College Students

Science.gov (United States)

Burgess, Stephen R.; Stermer, Steven Paul; Burgess, Melinda C. R.

2012-01-01

The relations between media consumption, especially TV viewing, and school performance have been extensively examined. However, even though video game playing may have replaced TV viewing as the most frequent form of media usage, relatively little research has examined its relations to school performance, especially in older students. We surveyed…

Selecting salient frames for spatiotemporal video modeling and segmentation.

Science.gov (United States)

Song, Xiaomu; Fan, Guoliang

2007-12-01

We propose a new statistical generative model for spatiotemporal video segmentation. The objective is to partition a video sequence into homogeneous segments that can be used as "building blocks" for semantic video segmentation. The baseline framework is a Gaussian mixture model (GMM)-based video modeling approach that involves a six-dimensional spatiotemporal feature space. Specifically, we introduce the concept of frame saliency to quantify the relevancy of a video frame to the GMM-based spatiotemporal video modeling. This helps us use a small set of salient frames to facilitate the model training by reducing data redundancy and irrelevance. A modified expectation maximization algorithm is developed for simultaneous GMM training and frame saliency estimation, and the frames with the highest saliency values are extracted to refine the GMM estimation for video segmentation. Moreover, it is interesting to find that frame saliency can imply some object behaviors. This makes the proposed method also applicable to other frame-related video analysis tasks, such as key-frame extraction, video skimming, etc. Experiments on real videos demonstrate the effectiveness and efficiency of the proposed method.

Inverse relationship between urban green space and childhood autism in California elementary school districts.

Science.gov (United States)

Wu, Jianyong; Jackson, Laura

2017-10-01

Green space has a variety of health benefits. However, little is known about its impact on autism, the fastest-growing neurodevelopmental disorder in children. This study examined the relationship between green space and childhood autism prevalence. Autism count data in 2010 were obtained for 543 of ~560 public elementary school districts in California. Multiple types of green space were measured in each school district, including percentages of forest, grassland, and average tree canopy and near-road tree canopy. Their associations with autism prevalence were evaluated with negative binomial regression models and spatial regression models. We observed inverse associations between several green space metrics and autism prevalence in school districts with high road density, the highly urbanized areas, but not in others. According to negative binomial regression models, adjusted rate ratios (RR) for the relationships in these school districts between autism prevalence and green space metrics in 10% increments were as follows: for forest, RR=0.90 (95% confidence interval [CI]: 0.84-0.95); for grassland, RR=0.90 (95% CI: 0.83-0.97); for average tree canopy, RR=0.89 (95% CI: 0.83-0.95), and for near-road tree canopy, RR=0.81 (95% CI: 0.73-0.91). These results suggest that increases of 10% in forest, grassland, average tree canopy and near-road tree canopy are associated with a decrease in autism prevalence of 10%, 10% 11% and 19%, respectively. In contrast, urban land and road density were positively associated with autism prevalence. The results of spatial regression models were consistent with those obtained by negative binomial models, except for grassland. Our study suggests that green space, specifically tree cover in areas with high road density, may influence autism prevalence in elementary school children beneficially. Further studies are needed to investigate a potential causal relationship, and the major mechanisms that may underlie the beneficial associations

A cross-sectional analysis of video games and attention deficit hyperactivity disorder symptoms in adolescents.

Science.gov (United States)

Chan, Philip A; Rabinowitz, Terry

2006-10-24

Excessive use of the Internet has been associated with attention deficit hyperactivity disorder (ADHD), but the relationship between video games and ADHD symptoms in adolescents is unknown. A survey of adolescents and parents (n = 72 adolescents, 72 parents) was performed assessing daily time spent on the Internet, television, console video games, and Internet video games, and their association with academic and social functioning. Subjects were high school students in the ninth and tenth grade. Students were administered a modified Young's Internet Addiction Scale (YIAS) and asked questions about exercise, grades, work, and school detentions. Parents were asked to complete the Conners' Parent Rating Scale (CPRS) and answer questions regarding medical/psychiatric conditions in their child. There was a significant association between time spent playing games for more than one hour a day and YIAS (p video game use. Adolescents who play more than one hour of console or Internet video games may have more or more intense symptoms of ADHD or inattention than those who do not. Given the possible negative effects these conditions may have on scholastic performance, the added consequences of more time spent on video games may also place these individuals at increased risk for problems in school.

Video Links from Prison: Permeability and the Carceral World

Directory of Open Access Journals (Sweden)

Carolyn McKay

2016-03-01

Full Text Available As audio visual communication technologies are installed in prisons, these spaces of incarceration are networked with courtrooms and other non-contiguous spaces, potentially facilitating a process of permeability. Jurisdictions around the world are embracing video conferencing and the technology is becoming a major interface for prisoners’ interactions with courts and legal advisers. In this paper, I draw on fieldwork interviews with prisoners from two correction centres in New South Wales, Australia, to understand their subjective and sensorial experiences of using video links as a portal to the outside world. These interviews raised many issues including audio permeability: a soundtrack of incarceration sometimes infiltrates into the prison video studio and then the remote courtroom, framing the prisoner in the context of their detention, intruding on legal process, and affecting prisoners’ comprehension and participation.

Correlates of video games playing among adolescents in an Islamic country

Science.gov (United States)

2010-01-01

Background No study has ever explored the prevalence and correlates of video game playing among children in the Islamic Republic of Iran. This study describes patterns and correlates of excessive video game use in a random sample of middle-school students in Iran. Specifically, we examine the relationship between video game playing and psychological well-being, aggressive behaviors, and adolescents' perceived threat of video-computer game playing. Methods This cross-sectional study was performed with a random sample of 444 adolescents recruited from eight middle schools. A self-administered, anonymous questionnaire covered socio-demographics, video gaming behaviors, mental health status, self-reported aggressive behaviors, and perceived side effects of video game playing. Results Overall, participants spent an average of 6.3 hours per week playing video games. Moreover, 47% of participants reported that they had played one or more intensely violent games. Non-gamers reported suffering poorer mental health compared to excessive gamers. Both non-gamers and excessive gamers overall reported suffering poorer mental health compared to low or moderate players. Participants who initiated gaming at younger ages were more likely to score poorer in mental health measures. Participants' self-reported aggressive behaviors were associated with length of gaming. Boys, but not girls, who reported playing video games excessively showed more aggressive behaviors. A multiple binary logistic regression shows that when controlling for other variables, older students, those who perceived less serious side effects of video gaming, and those who have personal computers, were more likely to report that they had played video games excessively. Conclusion Our data show a curvilinear relationship between video game playing and mental health outcomes, with "moderate" gamers faring best and "excessive" gamers showing mild increases in problematic behaviors. Interestingly, "non-gamers" clearly

Correlates of video games playing among adolescents in an Islamic country.

Science.gov (United States)

Allahverdipour, Hamid; Bazargan, Mohsen; Farhadinasab, Abdollah; Moeini, Babak

2010-05-27

No study has ever explored the prevalence and correlates of video game playing among children in the Islamic Republic of Iran. This study describes patterns and correlates of excessive video game use in a random sample of middle-school students in Iran. Specifically, we examine the relationship between video game playing and psychological well-being, aggressive behaviors, and adolescents' perceived threat of video-computer game playing. This cross-sectional study was performed with a random sample of 444 adolescents recruited from eight middle schools. A self-administered, anonymous questionnaire covered socio-demographics, video gaming behaviors, mental health status, self-reported aggressive behaviors, and perceived side effects of video game playing. Overall, participants spent an average of 6.3 hours per week playing video games. Moreover, 47% of participants reported that they had played one or more intensely violent games. Non-gamers reported suffering poorer mental health compared to excessive gamers. Both non-gamers and excessive gamers overall reported suffering poorer mental health compared to low or moderate players. Participants who initiated gaming at younger ages were more likely to score poorer in mental health measures. Participants' self-reported aggressive behaviors were associated with length of gaming. Boys, but not girls, who reported playing video games excessively showed more aggressive behaviors. A multiple binary logistic regression shows that when controlling for other variables, older students, those who perceived less serious side effects of video gaming, and those who have personal computers, were more likely to report that they had played video games excessively. Our data show a curvilinear relationship between video game playing and mental health outcomes, with "moderate" gamers faring best and "excessive" gamers showing mild increases in problematic behaviors. Interestingly, "non-gamers" clearly show the worst outcomes. Therefore

School and Concussions

Science.gov (United States)

... Videos for Educators Search English Español School and Concussions KidsHealth / For Teens / School and Concussions What's in ... a type of brain injury. How Can a Concussion Affect Me at School? All injured body parts ...

Deep Learning for Video Game Playing

OpenAIRE

Justesen, Niels; Bontrager, Philip; Togelius, Julian; Risi, Sebastian

2017-01-01

In this article, we review recent Deep Learning advances in the context of how they have been applied to play different types of video games such as first-person shooters, arcade games, and real-time strategy games. We analyze the unique requirements that different game genres pose to a deep learning system and highlight important open challenges in the context of applying these machine learning methods to video games, such as general game playing, dealing with extremely large decision spaces...

Astrobiology in an Urban New York City High School: John Dewey High School's Space Science Academy

Science.gov (United States)

Fried, B.; Dash, H. B.

2010-04-01

John Dewey High School's participation in NASA's MESDT and DLN projects and other partnerships provide opportunities for our diverse population, focusing particular attention to under-represented and under-served groups in the field of Space Science.

Authentication for Propulsion Test Streaming Video

Data.gov (United States)

National Aeronautics and Space Administration — A streaming video system was developed and implemented at SSC to support various propulsion projects at SSC. These projects included J-2X and AJ-26 rocket engine...

Special Needs: Planning for Adulthood (Videos)

Medline Plus

Full Text Available ... Emotions & Behavior School & Family Life First Aid & Safety Doctors & Hospitals Videos Recipes for Kids Kids site Sitio para niños How the Body Works Puberty & Growing Up Staying Healthy Staying Safe Recipes & Cooking Health Problems Illnesses & Injuries Relax & Unwind People, Places & Things That ...

Celiac Family Health Education Video Series

Medline Plus

Full Text Available ... Free Baking School Eating Out Away From Home Emotional Adjustment Kids Speak Research and Innovation Contact Us Celiac Disease Program | Videos Boston Children's Hospital will teach you and your family about a healthful celiac lifestyle. Education is key in making parents feel more at ...

DEVELOPING OF INSTRUCTIONAL MEDIA-BASED ANIMATION VIDEO ON ENZYME AND METABOLISM MATERIAL IN SENIOR HIGH SCHOOL

Directory of Open Access Journals (Sweden)

Muhammad Mustofa Yusuf

2017-11-01

Full Text Available The research aimed to product a learning material related to animation video on enzyme and metabolism material for high school student which is validated by media and material experts, educational practition and student legibility. Research and development model is ADDIE with quantitative-qualitative data analyzing methode. Data collection was obtained from validation results by media and material experts, educational partition and student legibility. The validation results were scores and suggestion. The percentage of product from expert media validation (100%, expert material validation (89,58%, educational practition (84,61%, and student legibility (81,91% showed valid of the criteria and feasible to use after revision.

Space Mathematics: A Resource for Secondary School Teachers

Science.gov (United States)

Kastner, Bernice

1985-01-01

A collection of mathematical problems related to NASA space science projects is presented. In developing the examples and problems, attention was given to preserving the authenticity and significance of the original setting while keeping the level of mathematics within the secondary school curriculum. Computation and measurement, algebra, geometry, probability and statistics, exponential and logarithmic functions, trigonometry, matrix algebra, conic sections, and calculus are among the areas addressed.

Smartphone Video Guidance Sensor for Small Satellites

Data.gov (United States)

National Aeronautics and Space Administration — Smartphone Video Guidance Sensor(SVGS) for Small Satellites will provide a low-cost,integrated rendezvous & proximity operations sensor system to allow an...

Fostering research aptitude among high school students through space weather competition

Science.gov (United States)

Abdullah, M.; Majid, R. A.; Bais, B.; Bahri, N. S.; Asillam, M. F.

2018-01-01

Cultivating research culture at an early stage is important for capacity building in a community. The high school level is the appropriate stage for research to be introduced because of students' competitive nature. Participation in the space weather competition is one of the ways in which research aptitude can be fostered in high school students in Malaysia. Accordingly, this paper presents how research elements were introduced to the students at the high school level through their participation in the space weather competition. The competition required the students to build a system to detect the presence of solar flares by utilizing VLF signals reflected from the ionosphere. The space weather competition started off with proposal writing for the space weather related project where the students were required to execute extensive literature review on the given topic. Additionally, the students were also required to conduct the experiments and analyse the data. Results obtained from data analysis were then validated by the students through various other observations that they had to carry out. At the end of the competition, students were expected to write a comprehensive technical report. Through this competition, the students learnt how to conduct research in accordance to the guidelines provided through the step by step approach exposed to them. Ultimately, this project revealed that the students were able to conduct research on their own with minimal guidance and that participation in the competition not only generated enjoyment in learning but also their interest in science and research.

Strategy for implementing research in hydrology to promote space science among school children in Nigeria

Science.gov (United States)

Alabi, Omowumi O.

2015-04-01

This paper describes a proposed activity to introduce school children in Nigeria to research in hydrology through the public outreach coordinated by the United Nations affiliated African Regional Centre for Space Science and Technology Education in English (ARCSSTE-E). Over the years, ARCSSTE-E has established a vibrant relationship with Nigerian schools through periodic zonal and national space educational workshops organized for students and teachers. The enthusiasm displayed by the students, coupled with the brilliant performance in the evaluation tests, indicated that this method of informal education is suitable for stimulating the interest of Nigerian pre-collegiate youths in space science and technology, and also to inspire the young learners and develop their interest in the Sciences, Technology, Engineering and Mathematics (STEM). Because only few representatives from each school can participate in these public outreach programs, it became expedient for the Centre to inaugurate space clubs in schools as a forum for students and teachers to meet regularly to discuss space related issues. Since the first space club was officially launched in 2007, the Centre has inaugurated over 300 space clubs in primary, secondary and tertiary institutions, strategically distributed over the six geopolitical zones of Nigeria. The presentation highlights a space club activity designed to introduce the students to precipitation data collection, with locally fabricated rain gauges. The paper also documents the proposed post-data collection activities in which ARCSSTE-E, acting as the coordinating Centre will collaborate with other national and international organizations to standardize and utilize the rainfall data collected by the students for ground validation of satellite data from the Global Precipitation Measurement. Key words: Public Outreach, Space Club, Human Capacity Development, Hydrologic Research, Global Precipitation Measurement.

Teaching paediatric basic life support in medical schools using peer teaching or video demonstration: A prospective randomised trial.

Science.gov (United States)

Stephan, Frederik; Groetschel, Hanjo; Büscher, Anja K; Serdar, Deniz; Groes, Kjell A; Büscher, Rainer

2018-05-13

The outcome of children with an out-of-hospital cardiac arrest is still poor, but bystander cardiopulmonary resuscitation can increase survival and minimise severe neurological sequelae. While teaching basic life support is standardised in emergency medicine classes, paediatric basic life support (PBLS) in neonates and toddlers is under-represented in paediatric curricula during university education. The appropriate mixture of E-learning and peer teaching lessons remains controversial in teaching paediatric basic skills. However, an increasing number of medical schools and paediatric classes switch their curricula to much cheaper and less tutor-dependent E-learning modules. We hypothesise that a peer teaching lesson is superior to a PBLS video demonstration with co-extensive contents and improves knowledge, skills and adherence to resuscitation guidelines. Eighty-eight medical students were randomly assigned to a video PBLS lesson (n = 44) or a peer teaching group (n = 44). An objective structured clinical examination was performed immediately after the class and at the end of the semester. Students taught by a peer teacher performed significantly better immediately after the initial course and at the end of the semester when compared to the video-trained group (P = 0.008 and P = 0.003, respectively). In addition, a borderline regression analysis also revealed a better resuscitation performance of students instructed in the peer teaching group. In our setting, peer teaching is superior and more sustainable than a co-extensive video demonstration alone when teaching PBLS to medical students. However, additional studies with combinations of different teaching methods are necessary to evaluate long-term outcomes. © 2018 Paediatrics and Child Health Division (The Royal Australasian College of Physicians).

Replicas Strategy and Cache Optimization of Video Surveillance Systems Based on Cloud Storage

Directory of Open Access Journals (Sweden)

Rongheng Li

2018-04-01

Full Text Available With the rapid development of video surveillance technology, especially the popularity of cloud-based video surveillance applications, video data begins to grow explosively. However, in the cloud-based video surveillance system, replicas occupy an amount of storage space. Also, the slow response to video playback constrains the performance of the system. In this paper, considering the characteristics of video data comprehensively, we propose a dynamic redundant replicas mechanism based on security levels that can dynamically adjust the number of replicas. Based on the location correlation between cameras, this paper also proposes a data cache strategy to improve the response speed of data reading. Experiments illustrate that: (1 our dynamic redundant replicas mechanism can save storage space while ensuring data security; (2 the cache mechanism can predict the playback behaviors of the users in advance and improve the response speed of data reading according to the location and time correlation of the front-end cameras; and (3 in terms of cloud-based video surveillance, our proposed approaches significantly outperform existing methods.

Motivational Videos and the Library Media Specialist: Teachers and Students on Film--Take 1

Science.gov (United States)

Bohot, Cameron Brooke; Pfortmiller, Michelle

2009-01-01

Today's students are bombarded with digital imagery and sound nearly 24 hours of the day. Video use in the classroom is engaging, and a teacher can instantly grab her students' attention. The content of the videos comes from many sources; the curriculum, the student handbook, and even the school rules. By creating the videos, teachers are not only…

Claiming Our Turf: Students' Civic Negotiation of the Public Space of School

Science.gov (United States)

Schmidt, Sandra J.

2013-01-01

In the ongoing effort to conceptualize meaningful civics curriculum, the author looks beyond the intended curriculum to consider the civics lessons embedded in spatial interaction and engagement. She examines how young people negotiate school, a space she contends can be conceived of as a public space. Their negotiations rely upon tactics of…

Using Progressive Video Prompting to Teach Students with Moderate Intellectual Disability to Shoot a Basketball

Science.gov (United States)

Lo, Ya-yu; Burk, Bradley; Burk, Bradley; Anderson, Adrienne L.

2014-01-01

The current study examined the effects of a modified video prompting procedure, namely progressive video prompting, to increase technique accuracy of shooting a basketball in the school gymnasium of three 11th-grade students with moderate intellectual disability. The intervention involved participants viewing video clips of an adult model who…

Special Needs: Planning for Adulthood (Videos)

Medline Plus

Full Text Available [Skip to Content] for Parents Parents site Sitio para padres General Health Growth & Development Infections Diseases & Conditions Pregnancy & Baby Nutrition & Fitness Emotions & Behavior School & Family Life First Aid & Safety Doctors & Hospitals Videos Recipes for Kids Kids site Sitio para niños How the Body Works ...

Sowing the "Semillas" of Critical Multicultural Citizenship for Latina/o Undocumented Youth: Spaces in School and out of School

Science.gov (United States)

Salazar, Maria del Carmen; Martinez, Lisa M.; Ortega, Debora

2016-01-01

The purpose of this study is to address how spaces in school and out of school support or constrain undocumented Latina/o youths' development as critical multicultural citizens. We draw on data from a multi-phase, qualitative study to present findings indicating that the youths persevered through academic and civic engagement. Ultimately, the…

Practicality in Virtuality: Finding Student Meaning in Video Game Education

Science.gov (United States)

Barko, Timothy; Sadler, Troy D.

2013-04-01

This paper looks at the conceptual differences between video game learning and traditional classroom and laboratory learning. It explores the notion of virtual experience by comparing a commonly used high school laboratory protocol on DNA extraction with a similar experience provided by a biotechnology themed video game. When considered conceptually, the notion of virtual experience is not limited to those experiences generated by computer aided technology, as with a video game or computer simulation. The notion of virtuality can apply to many real world experiences as well. It is proposed that the medium of the learning experience, be it video game or classroom, is not an important distinction to consider; instead, we should seek to determine what kinds of meaningful experiences apply for both classrooms and video games.

Usability of American Sign Language Videos for Presenting Mathematics Assessment Content.

Science.gov (United States)

Hansen, Eric G; Loew, Ruth C; Laitusis, Cara C; Kushalnagar, Poorna; Pagliaro, Claudia M; Kurz, Christopher

2018-04-12

There is considerable interest in determining whether high-quality American Sign Language videos can be used as an accommodation in tests of mathematics at both K-12 and postsecondary levels; and in learning more about the usability (e.g., comprehensibility) of ASL videos with two different types of signers - avatar (animated figure) and human. The researchers describe the results of administering each of nine pre-college mathematics items in both avatar and human versions to each of 31 Deaf participants with high school and post-high school backgrounds. This study differed from earlier studies by obliging the participants to rely on the ASL videos to answer the items. While participants preferred the human version over the avatar version (apparently due largely to the better expressiveness and fluency of the human), there was no discernible relationship between mathematics performance and signed version.

Video Surveillance in Mental Health Facilities: Is it Ethical?

Science.gov (United States)

Stolovy, Tali; Melamed, Yuval; Afek, Arnon

2015-05-01

Video surveillance is a tool for managing safety and security within public spaces. In mental health facilities, the major benefit of video surveillance is that it enables 24 hour monitoring of patients, which has the potential to reduce violent and aggressive behavior. The major disadvantage is that such observation is by nature intrusive. It diminishes privacy, a factor of huge importance for psychiatric inpatients. Thus, an ongoing debate has developed following the increasing use of cameras in this setting. This article presents the experience of a medium-large academic state hospital that uses video surveillance, and explores the various ethical and administrative aspects of video surveillance in mental health facilities.

Contest ``LET your School GO Into - Space Baptism 2007

Science.gov (United States)

Sánchez, G.

2009-05-01

The contest ``Space Baptism 2007'' was organized with the cooperation of the Mirador de la Ciencia, a science museum associated with the local zoo in Barquisimeto, Venezuela, and in collaboration with the Asociación Larense de Astronomía, a local astronomy amateur group. This contest was aimed at students of primary schools and had as a final award the chance to give a proper name to an asteroid. The ultimate goal of the contest was to promote basic and space sciences to children and the young through activities that involved the creation of stories related to astronomy, enforcing creativity and originality, and encouraging group work and solidarity. As a result, the asteroid (12758) 1993 SM3 will be known from now on as (12758) Kabudarí. The success of this initiative is demonstrated by stories about the contest that appeared in several publications in local newspapers and magazines about the school and the students who won the contest. We are currently developing plans for repetitions of the contest to name two more asteroids.

Cellphones in Classrooms Land Teachers on Online Video Sites

Science.gov (United States)

Honawar, Vaishali

2007-01-01

Videos of teachers that students taped in secrecy are all over online sites like YouTube and MySpace. Angry teachers, enthusiastic teachers, teachers clowning around, singing, and even dancing are captured, usually with camera phones, for the whole world to see. Some students go so far as to create elaborately edited videos, shot over several…

Orientations to Video Games among Gender and Age Groups

Science.gov (United States)

Greenberg, Bradley S.; Sherry, John; Lachlan, Kenneth; Lucas, Kristen; Holmstrom, Amanda

2010-01-01

Questionnaires were completed by 5th-, 8th-, and 11th-grade public schools students in rural and suburban school districts and by undergraduates at two universities in the United States (n = 1,242). They were asked about their orientation to video games--the amount of time they played, their motives for doing so, and the game types they…

Tracing Sequential Video Production

DEFF Research Database (Denmark)

Otrel-Cass, Kathrin; Khalid, Md. Saifuddin

2015-01-01

, for one week in 2014, and collected and analyzed visual data to learn about scientists’ practices. The visual material that was collected represented the agreed on material artifacts that should aid the students' reflective process to make sense of science technology practices. It was up to the student...... video, nature of the interactional space, and material and spatial semiotics....

Space and place in researching male early high school leaving in Orange Farm Township

Directory of Open Access Journals (Sweden)

Vangile Bingma

2013-01-01

Full Text Available I reflect on the methodological processes underpinning a dissertation that investigated male learners' reasons for leaving high school early and the strategies they employed to negotiate everyday life. A qualitative case study was conducted with nine male early high school leavers between the ages of 18 and 25, as well as 12 stakeholders involved in the Orange Farm Township, south of Johannesburg. Purposive and snowball sampling techniques were used. Data were collected through in-depth interviews, document reviews, and observations. Narrative analysis revealed complications related to the notions of space and place of the potential participants and the researcher. In the first place, the difficulty was not in identifying participants, but in establishing rapport to the extent that they agreed to participate in the research. Assumptions about space and place gave rise to expectations that had to be managed, and consequently the researcher had to rethink the methodological choices. In particular, participants' perceived real social positions and their relation to different social spaces had to be negotiated. It is suggested that relatively novice researchers, researching male early high school leaving in familiar spaces, can mitigate complications of space, place and stigma during fieldwork by using multiple sources of data and strategic, flexible interviewing techniques.

Analytical and ethical complexities in video game research

DEFF Research Database (Denmark)

Andersen, Mads Lund; Chimiri, Niklas Alexander; Søndergaard, Dorte Marie

Session: Sociomaterial complexities in digital-analog spaces Abstract: Analytical and ethical complexities in video game research A central issue that video game research seldom explicitly articulates is the ethical complexities involved in its empirical and analytical work. The presentation...... explores common research questions posed and analytical foci chosen by video game researchers subscribing to either the media effects tradition, represented by (ref.) or to interdisciplinary Game Studies. Both fields, which tend to depict themselves as polar-opposites, build on ethical assumptions...... of theoretical or analytical arrogance. The relevance of acknowledging and situating ethical complexity becomes pertinent when alternatively taking a sociomaterial perspective on doing empirical and analytical work on video gaming. From an agential realist point of view, for instance, a researcher...

The correlation between playing violent video games and bullying among adolescents in Serbia

OpenAIRE

Jevtić Ana; Savić Milomirka

2013-01-01

The aim of this study was to determine the frequency of playing video games among Serbian adolescents, the video game violence and the quality of parental control. We wanted to relate the frequency of playing, the video game violence, the bullying behaviour in schools, and GPA. The study involved boys and girls (N = 578) from four age groups (12, 14, 16, 18 years). Research results have shown that most participants play video games (75.1%). There are significantly more boys than girls among t...

Video-modelling to improve task completion in a child with autism.

Science.gov (United States)

Rayner, Christopher Stephen

2010-01-01

To evaluate the use of video modelling as an intervention for increasing task completion for individuals with autism who have high support needs. A 12-year-old-boy with autism received video modelling intervention on two routines (unpacking his bag and brushing his teeth). Use of the video modelling intervention led to rapid increases in the percentage of steps performed in the unpacking his bag sequence and these gains generalized to packing his bag prior to departure from school. There was limited success in the use of the video modelling intervention for teaching the participant to brush his teeth. Video modelling can be successfully applied to enhance daily functioning in a classroom environment for students with autism and high support needs.

REAL TIME SPEED ESTIMATION FROM MONOCULAR VIDEO

Directory of Open Access Journals (Sweden)

M. S. Temiz

2012-07-01

Full Text Available In this paper, detailed studies have been performed for developing a real time system to be used for surveillance of the traffic flow by using monocular video cameras to find speeds of the vehicles for secure travelling are presented. We assume that the studied road segment is planar and straight, the camera is tilted downward a bridge and the length of one line segment in the image is known. In order to estimate the speed of a moving vehicle from a video camera, rectification of video images is performed to eliminate the perspective effects and then the interest region namely the ROI is determined for tracking the vehicles. Velocity vectors of a sufficient number of reference points are identified on the image of the vehicle from each video frame. For this purpose sufficient number of points from the vehicle is selected, and these points must be accurately tracked on at least two successive video frames. In the second step, by using the displacement vectors of the tracked points and passed time, the velocity vectors of those points are computed. Computed velocity vectors are defined in the video image coordinate system and displacement vectors are measured by the means of pixel units. Then the magnitudes of the computed vectors in the image space are transformed to the object space to find the absolute values of these magnitudes. The accuracy of the estimated speed is approximately ±1 – 2 km/h. In order to solve the real time speed estimation problem, the authors have written a software system in C++ programming language. This software system has been used for all of the computations and test applications.

Longitudinal effects of violent video games on aggression in Japan and the United States.

Science.gov (United States)

Anderson, Craig A; Sakamoto, Akira; Gentile, Douglas A; Ihori, Nobuko; Shibuya, Akiko; Yukawa, Shintaro; Naito, Mayumi; Kobayashi, Kumiko

2008-11-01

Youth worldwide play violent video games many hours per week. Previous research suggests that such exposure can increase physical aggression. We tested whether high exposure to violent video games increases physical aggression over time in both high- (United States) and low- (Japan) violence cultures. We hypothesized that the amount of exposure to violent video games early in a school year would predict changes in physical aggressiveness assessed later in the school year, even after statistically controlling for gender and previous physical aggressiveness. In 3 independent samples, participants' video game habits and physically aggressive behavior tendencies were assessed at 2 points in time, separated by 3 to 6 months. One sample consisted of 181 Japanese junior high students ranging in age from 12 to 15 years. A second Japanese sample consisted of 1050 students ranging in age from 13 to 18 years. The third sample consisted of 364 United States 3rd-, 4th-, and 5th-graders ranging in age from 9 to 12 years. RESULTS. Habitual violent video game play early in the school year predicted later aggression, even after controlling for gender and previous aggressiveness in each sample. Those who played a lot of violent video games became relatively more physically aggressive. Multisample structure equation modeling revealed that this longitudinal effect was of a similar magnitude in the United States and Japan for similar-aged youth and was smaller (but still significant) in the sample that included older youth. These longitudinal results confirm earlier experimental and cross-sectional studies that had suggested that playing violent video games is a significant risk factor for later physically aggressive behavior and that this violent video game effect on youth generalizes across very different cultures. As a whole, the research strongly suggests reducing the exposure of youth to this risk factor.

Utilizing Video Games

Science.gov (United States)

Blaize, L.

Almost from its birth, the computer and video gaming industry has done an admirable job of communicating the vision and attempting to convey the experience of traveling through space to millions of gamers from all cultures and demographics. This paper will propose several approaches the 100 Year Starship Study can take to use the power of interactive media to stir interest in the Starship and related projects among a global population. It will examine successful gaming franchises from the past that are relevant to the mission and consider ways in which the Starship Study could cooperate with game development studios to bring the Starship vision to those franchises and thereby to the public. The paper will examine ways in which video games can be used to crowd-source research aspects for the Study, and how video games are already considering many of the same topics that will be examined by this Study. Finally, the paper will propose some mechanisms by which the 100 Year Starship Study can establish very close ties with the gaming industry and foster cooperation in pursuit of the Study's goals.

Prevalence of video games among Thai children: impact evaluation.

Science.gov (United States)

Jirasatmathakul, P; Poovorawan, Y

2000-12-01

The present study was performed in order to determine prevalence and favored types of video games among altogether 679 primary and secondary school children in Thailand. To that end, the authors distributed questionnaires comprising detailed questions as to demographic data, playing frequency, available location and preferred type of video games among the parents of the children and adolescents to be investigated. Consistent with the literature, our results showed an early onset of video game playing (7.6 years), a higher prevalence among boys compared with girls, and a predilection for games invoking some aggressive behavior. In conclusion, although health hazards created by video game playing have remained beyond proof we still recommend parents and teachers to play a more active part as to the choice of games and the time spent playing.

Sex, Lies and Video Games

Science.gov (United States)

Kearney, Paul; Pivec, Maja

2007-01-01

Sex and violence in video games is a social issue that confronts us all, especially as many commercial games are now being introduced for game-based learning in schools, and as such this paper polls teenage players about the rules their parents and teachers may or may not have, and surveys the gaming community, ie, game developers to parents, to…

Destination: Marshall Islands. Video Guide.

Science.gov (United States)

Legowski, Margaret

This video guide was developed by the Peace Corps' Office of World Wise Schools. Activities that the guide describes are for use in a 3- to 5-day unit on one of the nations of Oceania, the Republic of the Marshall Islands. The activities are designed to provide students with opportunities to: (1) compare and contrast Marshallese and U.S. culture;…

Effects of Video Streaming Technology on Public Speaking Students' Communication Apprehension and Competence

Science.gov (United States)

Dupagne, Michel; Stacks, Don W.; Giroux, Valerie Manno

2007-01-01

This study examines whether video streaming can reduce trait and state communication apprehension, as well as improve communication competence, in public speaking classes. Video streaming technology has been touted as the next generation of video feedback for public speaking students because it is not limited by time or space and allows Internet…

The Aesthetics of the Ambient Video Experience

Directory of Open Access Journals (Sweden)

Jim Bizzocchi

2008-01-01

Full Text Available Ambient Video is an emergent cultural phenomenon, with roots that go deeply into the history of experimental film and video art. Ambient Video, like Brian Eno's ambient music, is video that "must be as easy to ignore as notice" [9]. This minimalist description conceals the formidable aesthetic challenge that faces this new form. Ambient video art works will hang on the walls of our living rooms, corporate offices, and public spaces. They will play in the background of our lives, living video paintings framed by the new generation of elegant, high-resolution flat-panel display units. However, they cannot command attention like a film or television show. They will patiently play in the background of our lives, yet they must always be ready to justify our attention in any given moment. In this capacity, ambient video works need to be equally proficient at rewarding a fleeting glance, a more direct look, or a longer contemplative gaze. This paper connects a series of threads that collectively illuminate the aesthetics of this emergent form: its history as a popular culture phenomenon, its more substantive artistic roots in avant-garde cinema and video art, its relationship to new technologies, the analysis of the viewer's conditions of reception, and the work of current artists who practice within this form.

Correlates of video games playing among adolescents in an Islamic country

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Moeini Babak

2010-05-01

Full Text Available Abstract Background No study has ever explored the prevalence and correlates of video game playing among children in the Islamic Republic of Iran. This study describes patterns and correlates of excessive video game use in a random sample of middle-school students in Iran. Specifically, we examine the relationship between video game playing and psychological well-being, aggressive behaviors, and adolescents' perceived threat of video-computer game playing. Methods This cross-sectional study was performed with a random sample of 444 adolescents recruited from eight middle schools. A self-administered, anonymous questionnaire covered socio-demographics, video gaming behaviors, mental health status, self-reported aggressive behaviors, and perceived side effects of video game playing. Results Overall, participants spent an average of 6.3 hours per week playing video games. Moreover, 47% of participants reported that they had played one or more intensely violent games. Non-gamers reported suffering poorer mental health compared to excessive gamers. Both non-gamers and excessive gamers overall reported suffering poorer mental health compared to low or moderate players. Participants who initiated gaming at younger ages were more likely to score poorer in mental health measures. Participants' self-reported aggressive behaviors were associated with length of gaming. Boys, but not girls, who reported playing video games excessively showed more aggressive behaviors. A multiple binary logistic regression shows that when controlling for other variables, older students, those who perceived less serious side effects of video gaming, and those who have personal computers, were more likely to report that they had played video games excessively. Conclusion Our data show a curvilinear relationship between video game playing and mental health outcomes, with "moderate" gamers faring best and "excessive" gamers showing mild increases in problematic behaviors

Violent Video Gaming and Moral Reasoning in Adolescents: Is There an Association?

Science.gov (United States)

Bajovic, Mirjana

2013-01-01

In this study of 109 adolescents from the eighth grade of seven public elementary schools in Canada, the relationship between adolescents' violent video game playing patterns, habits and attitudes, and their levels of moral reasoning was investigated. The results suggested that playing violent video games in general was a very popular activity…

The Effect of Digital Video Games on EFL Students' Language Learning Motivation

Science.gov (United States)

Ebrahimzadeh, Mohsen; Alavi, Sepideh

2017-01-01

The study examined the effect of a commercial digital video game on high school students' language learning motivation. Participants were 241 male students randomly assigned to one of the following three treatments: Readers, who intensively read the game's story; Players, who played the digital video game; and Watchers, who watched two classmates…

Recent advances in intelligent image search and video retrieval

CERN Document Server

2017-01-01

This book initially reviews the major feature representation and extraction methods and effective learning and recognition approaches, which have broad applications in the context of intelligent image search and video retrieval. It subsequently presents novel methods, such as improved soft assignment coding, Inheritable Color Space (InCS) and the Generalized InCS framework, the sparse kernel manifold learner method, the efficient Support Vector Machine (eSVM), and the Scale-Invariant Feature Transform (SIFT) features in multiple color spaces. Lastly, the book presents clothing analysis for subject identification and retrieval, and performance evaluation methods of video analytics for traffic monitoring. Digital images and videos are proliferating at an amazing speed in the fields of science, engineering and technology, media and entertainment. With the huge accumulation of such data, keyword searches and manual annotation schemes may no longer be able to meet the practical demand for retrieving relevant conte...

Pathological video-game use among youth ages 8 to 18: a national study.

Science.gov (United States)

Gentile, Douglas

2009-05-01

Researchers have studied whether some youth are "addicted" to video games, but previous studies have been based on regional convenience samples. Using a national sample, this study gathered information about video-gaming habits and parental involvement in gaming, to determine the percentage of youth who meet clinical-style criteria for pathological gaming. A Harris poll surveyed a randomly selected sample of 1,178 American youth ages 8 to 18. About 8% of video-game players in this sample exhibited pathological patterns of play. Several indicators documented convergent and divergent validity of the results: Pathological gamers spent twice as much time playing as nonpathological gamers and received poorer grades in school; pathological gaming also showed comorbidity with attention problems. Pathological status significantly predicted poorer school performance even after controlling for sex, age, and weekly amount of video-game play. These results confirm that pathological gaming can be measured reliably, that the construct demonstrates validity, and that it is not simply isomorphic with a high amount of play.

A cross-sectional analysis of video games and attention deficit hyperactivity disorder symptoms in adolescents

Directory of Open Access Journals (Sweden)

Rabinowitz Terry

2006-10-01

Full Text Available Abstract Background Excessive use of the Internet has been associated with attention deficit hyperactivity disorder (ADHD, but the relationship between video games and ADHD symptoms in adolescents is unknown. Method A survey of adolescents and parents (n = 72 adolescents, 72 parents was performed assessing daily time spent on the Internet, television, console video games, and Internet video games, and their association with academic and social functioning. Subjects were high school students in the ninth and tenth grade. Students were administered a modified Young's Internet Addiction Scale (YIAS and asked questions about exercise, grades, work, and school detentions. Parents were asked to complete the Conners' Parent Rating Scale (CPRS and answer questions regarding medical/psychiatric conditions in their child. Results There was a significant association between time spent playing games for more than one hour a day and YIAS (p Conclusion Adolescents who play more than one hour of console or Internet video games may have more or more intense symptoms of ADHD or inattention than those who do not. Given the possible negative effects these conditions may have on scholastic performance, the added consequences of more time spent on video games may also place these individuals at increased risk for problems in school.

GPM GROUND VALIDATION CITATION VIDEOS IPHEX V1

Data.gov (United States)

National Aeronautics and Space Administration — The GPM Ground Validation Citation Videos IPHEx data were collected during the Integrated Precipitation and Hydrology Experiment (IPHEx) in the Southern...

Scaffolding With and Through Videos

DEFF Research Database (Denmark)

Otrel-Cass, Kathrin; Khoo, Elaine; Cowie, Bronwen

2012-01-01

In New Zealand and internationally claims are being made about the potential for information and communication technologies (ICTs) to transform teaching and learning. However, the theoretical underpinnings explaining the complex interplay between the content, pedagogy and technology a teacher needs...... to scaffold learning. It showcases the intricate interplay between teachers’ knowledge about content, digital video technology, and students’ learning needs based on a qualitative study of two science teachers and their students in a New Zealand primary school....... to consider must be expanded. This article explicates theoretical and practical ideas related to teachers’ application of their ICT technology, pedagogy, and content knowledge (TPACK) in science. The article unpacks the social and technological dimensions of teachers’ use of TPACK when they use digital videos...

Use of Video Modeling to Teach Adolescents with an Intellectual Disability to Film Their Own Video Prompts

Science.gov (United States)

Shepley, Sally B.; Smith, Katie A.; Ayres, Kevin M.; Alexander, Jennifer L.

2017-01-01

Self-instruction for individuals with an intellectual disability can be viewed as a pivotal skill in that once learned this skill has collateral effects on future behaviors in various environments. This study used a multiple probe across participants design to evaluate video modeling to teach high school students with an intellectual disability to…

Continuous Video Modeling to Assist with Completion of Multi-Step Home Living Tasks by Young Adults with Moderate Intellectual Disability

Science.gov (United States)

Mechling, Linda C.; Ayres, Kevin M.; Bryant, Kathryn J.; Foster, Ashley L.

2014-01-01

The current study evaluated a relatively new video-based procedure, continuous video modeling (CVM), to teach multi-step cleaning tasks to high school students with moderate intellectual disability. CVM in contrast to video modeling and video prompting allows repetition of the video model (looping) as many times as needed while the user completes…

UNH Project SMART 2017: Space Science for High School Students

Science.gov (United States)

Smith, C. W.; Broad, L.; Goelzer, S.; Levergood, R.; Lugaz, N.; Moebius, E.

2017-12-01

Every summer for the past 26 years the University of New Hampshire (UNH) has run a month-long, residential outreach program for high school students considering careers in mathematics, science, or engineering. Space science is one of the modules. Students work directly with UNH faculty performing original work with real spacecraft data and hardware and present the results of that effort at the end of the program. This year the student research projects used data from the Messenger, STEREO, and Triana missions. In addition, the students build and fly a high-altitude balloon payload with instruments of their own construction. Students learn circuit design and construction, microcontroller programming, and core atmospheric and space science along with fundamental concepts in space physics and engineering. Our payload design has evolved significantly since the first flight of a simple rectangular box and now involves a stable descent vehicle that does not require a parachute. Our flight hardware includes an on-board flight control computer, in-flight autonomous control and data acquisition of multiple student-built instruments, and real-time camera images sent to ground. This year we developed, built and flew a successful line cutter based on GPS location information that prevents our payload from falling into the ocean while also separating the payload from the balloon remains for a cleaner descent. We will describe that new line cutter design and implementation along with the shielded Geiger counters that we flew as part of our cosmic ray air shower experiment. This is a program that can be used as a model for other schools to follow and that high schools can initiate. More information can be found at .

A new chapter in doctoral candidate training: The Helmholtz Space Life Sciences Research School (SpaceLife)

Science.gov (United States)

Hellweg, C. E.; Gerzer, R.; Reitz, G.

2011-05-01

In the field of space life sciences, the demand of an interdisciplinary and specific training of young researchers is high due to the complex interaction of medical, biological, physical, technical and other questions. The Helmholtz Space Life Sciences Research School (SpaceLife) offers an excellent interdisciplinary training for doctoral students from different fields (biology, biochemistry, biotechnology, physics, psychology, nutrition or sports sciences and related fields) and any country. SpaceLife is coordinated by the Institute of Aerospace Medicine at the German Aerospace Center (DLR) in Cologne. The German Universities in Kiel, Bonn, Aachen, Regensburg, Magdeburg and Berlin, and the German Sports University (DSHS) in Cologne are members of SpaceLife. The Universities of Erlangen-Nürnberg, Frankfurt, Hohenheim, and the Beihang University in Beijing are associated partners. In each generation, up to 25 students can participate in the three-year program. Students learn to develop integrated concepts to solve health issues in human spaceflight and in related disease patterns on Earth, and to further explore the requirements for life in extreme environments, enabling a better understanding of the ecosystem Earth and the search for life on other planets in unmanned and manned missions. The doctoral candidates are coached by two specialist supervisors from DLR and the partner university, and a mentor. All students attend lectures in different subfields of space life sciences to attain an overview of the field: radiation and gravitational biology, astrobiology and space physiology, including psychological aspects of short and long term space missions. Seminars, advanced lectures, laboratory courses and stays at labs at the partner institutions or abroad are offered as elective course and will provide in-depth knowledge of the chosen subfield or allow to appropriate innovative methods. In Journal Clubs of the participating working groups, doctoral students learn

Prevalence of Addiction to the Internet, Computer Games, DVD, and Video and Its Relationship to Anxiety and Depression in a Sample of Iranian High School Students

OpenAIRE

Ahmadi, Jamshid; Amiri, Amin; Ghanizadeh, Ahmad; Khademalhosseini, Mitra; Khademalhosseini, Zeinab; Gholami, Zeinab; Sharifian, Maryam

2014-01-01

Objective: The objective of this study was to assess the prevalence of addiction to the Internet, computer games, DVD, and video and its relationship to anxiety and depression in a sample of Iranian high school students. Methods: In this cross-sectional study 1020 high school students (males and females) were selected randomly from different areas of Shiraz city in southern Iran. They were interviewed according to the Diagnostic and Statistical Manual of Mental Disorders, 4th ed (DSM-IV) crit...

After-School Spaces: Looking for Learning in All the Right Places

Science.gov (United States)

Schnittka, Christine G.; Evans, Michael A.; Won, Samantha G. L.; Drape, Tiffany A.

2016-06-01

After-school settings provide youth with homework support, social outlets and fun activities, and help build self-confidence. They are safe places for forming relationships with caring adults. More after-school settings are starting to integrate Science, Technology, Engineering, and Mathematics (STEM) topics. What science skills and concepts might youth learn in engineering design-based after-school settings? Traditional assessments often fail to capture the ways youth learn in informal settings, and deep science understandings are notoriously difficult to measure. In this study, we examined three after-school settings where 65 youth were learning science through engineering design challenges. In this informal setting, we examined storyboards, social networking forum (SNF) chat logs, videos of whole-class interactions, interviews with groups and single participants, and traditional multiple-choice pre- and posttest results. As we looked for evidence of learning, we found that the social networking forum was rich with data. Interviews were even more informative, much more so than traditional pencil and paper multiple-choice tests. We found that different kinds of elicitation strategies adopted by site leaders and facilitators played an important role in the ways youth constructed knowledge. These elicitation strategies also helped us find evidence of learning. Based on findings, future iterations of the curricula will involve tighter integration of social networking forums, continued use of videotaped interviews for data collection, an increased focus on training site leaders and facilitators in elicitation strategies, and more open-ended pencil and paper assessments in order to facilitate the process of looking for learning.

The physical space as a barrier to school inclusion

Directory of Open Access Journals (Sweden)

Kênnea Martins Almeida

2015-03-01

Full Text Available The architecture and organization of school buildings can be facilitators or barriers in implementing the process of school inclusion, and the assessment for their suitability composes an important part of the role that the rehabilitation team plays in this process. The aim of the present study was to assess the physical accessibility of public schools in a municipality of Minas Gerais state, Brazil. We conducted a descriptive, cross-sectional study with evaluation of the physical spaces of 14 schools, especially the areas of access, circulation, furniture, restrooms and parking, according to the criteria described in the Brazilian Standard 9050/2004. The results were presented in the form of descriptive statistics. Of the 493 items evaluated, 85.6% were considered inadequate. In the sector of access, circulation and furniture, 81.4% of the items were inadequate. In the health sector, 94.6% of the items were inadequate, and no restrooms contemplating all accessibility standards were found. In the parking sector, 83.4% of the items were inadequate. It was possible to identify that none of the state schools assessed in the municipality studied is prepared to make the inclusion of children with special needs with regard to accessibility.

Photometric Calibration of Consumer Video Cameras

Science.gov (United States)

Suggs, Robert; Swift, Wesley, Jr.

2007-01-01

Equipment and techniques have been developed to implement a method of photometric calibration of consumer video cameras for imaging of objects that are sufficiently narrow or sufficiently distant to be optically equivalent to point or line sources. Heretofore, it has been difficult to calibrate consumer video cameras, especially in cases of image saturation, because they exhibit nonlinear responses with dynamic ranges much smaller than those of scientific-grade video cameras. The present method not only takes this difficulty in stride but also makes it possible to extend effective dynamic ranges to several powers of ten beyond saturation levels. The method will likely be primarily useful in astronomical photometry. There are also potential commercial applications in medical and industrial imaging of point or line sources in the presence of saturation.This development was prompted by the need to measure brightnesses of debris in amateur video images of the breakup of the Space Shuttle Columbia. The purpose of these measurements is to use the brightness values to estimate relative masses of debris objects. In most of the images, the brightness of the main body of Columbia was found to exceed the dynamic ranges of the cameras. A similar problem arose a few years ago in the analysis of video images of Leonid meteors. The present method is a refined version of the calibration method developed to solve the Leonid calibration problem. In this method, one performs an endto- end calibration of the entire imaging system, including not only the imaging optics and imaging photodetector array but also analog tape recording and playback equipment (if used) and any frame grabber or other analog-to-digital converter (if used). To automatically incorporate the effects of nonlinearity and any other distortions into the calibration, the calibration images are processed in precisely the same manner as are the images of meteors, space-shuttle debris, or other objects that one seeks to

Visualizing the history of living spaces.

Science.gov (United States)

Ivanov, Yuri; Wren, Christopher; Sorokin, Alexander; Kaur, Ishwinder

2007-01-01

The technology available to building designers now makes it possible to monitor buildings on a very large scale. Video cameras and motion sensors are commonplace in practically every office space, and are slowly making their way into living spaces. The application of such technologies, in particular video cameras, while improving security, also violates privacy. On the other hand, motion sensors, while being privacy-conscious, typically do not provide enough information for a human operator to maintain the same degree of awareness about the space that can be achieved by using video cameras. We propose a novel approach in which we use a large number of simple motion sensors and a small set of video cameras to monitor a large office space. In our system we deployed 215 motion sensors and six video cameras to monitor the 3,000-square-meter office space occupied by 80 people for a period of about one year. The main problem in operating such systems is finding a way to present this highly multidimensional data, which includes both spatial and temporal components, to a human operator to allow browsing and searching recorded data in an efficient and intuitive way. In this paper we present our experiences and the solutions that we have developed in the course of our work on the system. We consider this work to be the first step in helping designers and managers of building systems gain access to information about occupants' behavior in the context of an entire building in a way that is only minimally intrusive to the occupants' privacy.

Video game playing and its relations with aggressive and prosocial behaviour.

Science.gov (United States)

Wiegman, O; van Schie, E G

1998-09-01

In this study of 278 children from the seventh and eighth grade of five elementary schools in Enschede, The Netherlands, the relationship between the amount of time children spent on playing video games and aggressive as well as prosocial behaviour was investigated. In addition, the relationship between the preference for aggressive video games and aggressive and prosocial behaviour was studied. No significant relationship was found between video game use in general and aggressive behaviour, but a significant negative relationship with prosocial behaviour was supported. However, separate analyses for boys and girls did not reveal this relationship. More consistent results were found for the preference for aggressive video games: children, especially boys, who preferred aggressive video games were more aggressive and showed less prosocial behaviour than those with a low preference for these games. Further analyses showed that children who preferred playing aggressive video games tended to be less intelligent.

Contributions of the model of social management to the strengthening of school council as a democratic space

Directory of Open Access Journals (Sweden)

Gislene Silva Dutra

2017-07-01

Full Text Available The paper presents a qualitative research of exploratory nature, which was developed in two phases. Initially, it has been carried out a literature review in order to discuss the contributions of the social management model for strengthening the school councils as a democratic space. Then it has been conducted a case study about the regulation of the School Council in the School System of Brumadinho, Minas Gerais. The main results showed that the model of social management has features such as dialogue, participation, democratization and empowerment, which can contribute to the strengthening of the school board as a democratic space.

The Effects of Violent Video Game Habits on Adolescent Hostility, Aggressive Behaviors, and School Performance

Science.gov (United States)

Gentile, Douglas, A.; Lynch, Paul, J.; Linder, Jennifer Ruh; Walsh, David, A.

2004-01-01

Video games have become one of the favorite activities of American children. A growing body of research is linking violent video game play to aggressive cognitions, attitudes, and behaviors. The first goal of this study was to document the video games habits of adolescents and the level of parental monitoring of adolescent video game use. The…

Effects of Commercial Web Videos on Students' Attitude toward Learning Technology

Science.gov (United States)

Tai, Yaming; Ting, Yu-Liang

2015-01-01

This study values the broad range of web videos produced by businesses to introduce new technologies while also promoting their products. When the promoted technology is related to the topic taught in a school course, it may be beneficial for students to watch such videos. However, most students view the web as a source for entertainment, and may…

The 1985 National Aeronautics and Space Administration's Summer High School Apprenticeship Research Program (SHARP)

Science.gov (United States)

1985-01-01

In 1985, a total of 126 talented high school students gained first hand knowledge about science and engineering careers by working directly with a NASA scientist or engineer during the summer. This marked the sixth year of operation for NASA's Summer High School Apprenticeship Research Program (SHARP). The major priority of maintaining the high standards and success of prior years was satisfied. The following eight sites participated in the Program: Ames Research Center, Ames' Dryden Flight Research Facility, Goddard Space Flight Center, Goddard's Wallop Flight Facility, Kennedy Space Center, Langley Research Center, Lewis Research Center, and Marshall Space Flight Center. Tresp Associates served as the SHARP contractor and worked closely with NASA staff at headquarters and the sites just mentioned to plan, implement, and evaluate the program.

Live lecture versus video-recorded lecture: are students voting with their feet?

Science.gov (United States)

Cardall, Scott; Krupat, Edward; Ulrich, Michael

2008-12-01

In light of educators' concerns that lecture attendance in medical school has declined, the authors sought to assess students' perceptions, evaluations, and motivations concerning live lectures compared with accelerated, video-recorded lectures viewed online. The authors performed a cross-sectional survey study of all first- and second-year students at Harvard Medical School. Respondents answered questions regarding their lecture attendance; use of class and personal time; use of accelerated, video-recorded lectures; and reasons for viewing video-recorded and live lectures. Other questions asked students to compare how well live and video-recorded lectures satisfied learning goals. Of the 353 students who received questionnaires, 204 (58%) returned responses. Collectively, students indicated watching 57.2% of lectures live, 29.4% recorded, and 3.8% using both methods. All students have watched recorded lectures, and most (88.5%) have used video-accelerating technologies. When using accelerated, video-recorded lecture as opposed to attending lecture, students felt they were more likely to increase their speed of knowledge acquisition (79.3% of students), look up additional information (67.7%), stay focused (64.8%), and learn more (63.7%). Live attendance remains the predominant method for viewing lectures. However, students find accelerated, video-recorded lectures equally or more valuable. Although educators may be uncomfortable with the fundamental change in the learning process represented by video-recorded lecture use, students' responses indicate that their decisions to attend lectures or view recorded lectures are motivated primarily by a desire to satisfy their professional goals. A challenge remains for educators to incorporate technologies students find useful while creating an interactive learning culture.

Introducing Player-Driven Video Analysis to Enhance Reflective Soccer Practice

DEFF Research Database (Denmark)

Hjort, Anders; Elbæk, Lars; Henriksen, Kristoffer

2017-01-01

. The implementation and evaluation of PU took place in the FC Copenhagen (FCK) School of Excellence. Findings show that PU can improve youth football players’ reflection skills through consistent video analyses and tagging, that coaches are important as role models and providers of feedback, and that the use......In the present study, we investigated the introduction of a cloud-based video analysis platform called Player Universe (PU) in a Danish football club. Video analysis is not a new performance-enhancing element in sport, but PU is innovative in the way players and coaches produce footage and how...... it facilitates reflective learning. Video analysis is executed in the (PU) platform by involving the players in the analysis process, in the sense that they are encouraged to tag game actions in video-documented football matches. Following this, players can get virtual feedback from their coach. The philosophy...

School and Asthma

Science.gov (United States)

... Videos for Educators Search English Español School and Asthma KidsHealth / For Kids / School and Asthma Print en ... Let's find out. Why Do I Need an Asthma Action Plan? When you're dealing with asthma, ...

Creating engagement with old research videos

DEFF Research Database (Denmark)

Caglio, Agnese; Buur, Jacob

User-centred design projects that utilize ethnographic research tend to produce hours and hours of contextual video footage that seldom gets used again once the project is complete. The richness of such research video could, however, make it attractive for other project teams or researchers...... as source of inspiration or knowledge of a particular context or user group -- if it were practically feasible to engage with the material later on. In this paper we explore the potentials of using old research footage to stimulate reflection, conversations and creativity by presenting it on pervasive...... screens to colleague designers and researchers. The setup we designed included large and small screens placed in a social space of a research environment, the communal kitchen. Through screenings of ten different 'old' research videos accompanied by various prompt questions and activities we built...

Video games: A significant cognitive artifact of contemporary youth culture

OpenAIRE

Henderson, Lyn

2005-01-01

Education is not limited to formal schooling. Recreational video games have been relatively ignored as a means of informal education. In fact, they are usually seen as trivial without educational worth beyond eye-hand coordination and something from which educators, parents, and politicians must rescue children and distance themselves. Yet video game literacy demands mastery of significant cognitive skills. Unfortunately, there is a remarkably limited research literature in this area. Most me...

Nurturing Soft Skills Among High School Students Through Space Weather Competition

Science.gov (United States)

Abdullah, Mardina; Abd Majid, Rosadah; Bais, Badariah; Syaidah Bahri, Nor

2016-07-01

Soft skills fulfill an important role in shaping an individual's personality. It is of high importance for every student to acquire adequate skills beyond academic or technical knowledge. The objective of this project was to foster students' enthusiasm in space science and develop their soft skills such as; interpersonal communication, critical thinking and problem-solving, team work, lifelong learning and information management, and leadership skills. This is a qualitative study and the data was collected via group interviews. Soft skills development among high school students were nurtured through space weather competition in solar flare detection. High school students (16 to 17 years old) were guided by mentors consisting of science teachers to carry out this project based on a module developed by UKM's researchers. Students had to acquire knowledge on antenna development and construct the antenna with recyclable materials. They had to capture graphs and identify peaks that indicate solar flare. Their findings were compared to satellite data for verification. They also presented their work and their findings to the panel of judges. After observation, it can be seen that students' soft skills and interest in learning space science had become more positive after being involved in this project.

Fundamental Space Biology-1: HHR and Incubator for ISS Space Life Sciences

Science.gov (United States)

Kirven-Brooks, M.; Fahlen, T.; Sato, K.; Reiss-Bubenheim, D.

The Space Station Biological Research Project (SSBRP) is developing an Incubator and a Habitat Holding Rack (HHR) to support life science experiments aboard the International Space Station (ISS). The HHR provides for cooling and power needs, and supports data transfer (including telemetry, commanding, video processing, Ethernet), video compression, and data and command storage). The Incubator is a habitat that provides for controlled temperature between +4 C and +45 C and air circulation. It has a set of connector ports for power, analog and digital sensors, and video pass-through to support experiment-unique hardware within the Incubator specimen chamber. The Incubator exchanges air with the ISS cabin. The Fundamental Space Biology-1 (FSB-1) Project will be delivering, the HHR and two Incubators to ISS. The two inaugural experiments to be conducted on ISS using this hardware will investigate the biological effects of the space environment on two model organisms, Saccharomyces cerevisiae (S. cerevisiae; yeast) and Caenorhabditis elegans (C. elegans; nematode). The {M}odel {Y}east {C}ultures {o}n {S}tation (MYCOS) experiment will support examination of the effect of microgravity and cosmic radiation on yeast biology. In the second series of experiments during the same increment, the effects of microgravity and space environment radiation on C. elegans will be examined. The {F}undamental Space Biology {I}ncubator {E}xperiment {R}esearch using {C}. {e}legans (FIERCE) study is designed to support a long duration, multi-generational study of nematodes. FIERCE on-orbit science operations will include video monitoring, sub-culturing and periodic fixation and freezing of samples. For both experiments, investigators will be solicited via an International Space Life Sciences Research Announcement. In the near future, the Centrifuge Accommodation Module will be delivered to ISS, which will house the SSBRP 2.5 m Centrifuge Rotor. The Incubator can be placed onto the Centrifuge

[Violent video games and aggression: long-term impact and selection effects].

Science.gov (United States)

Staude-Müller, Frithjof

2011-01-01

This study applied social-cognitive models of aggression in order to examine relations between video game use and aggressive tendencies and biases in social information processing. To this end, 499 secondary school students (aged 12-16) completed a survey on two occasions one year apart. Hierarchical regression analysis probed media effects and selection effects and included relevant contextual variables (parental monitoring of media consumption, impulsivity, and victimization). Results revealed that it was not the consumption of violent video games but rather an uncontrolled pattern of video game use that was associated with increasing aggressive tendencies. This increase was partly mediated by a hostile attribution bias in social information processing. The influence of aggressive tendencies on later video game consumption was also examined (selection path). Adolescents with aggressive traits intensified their video game behavior only in terms of their uncontrolled video game use. This was found even after controlling for sensation seeking and parental media control.

The Effect of the Video Game Quizlet on the Acquisiton of Science Vocabulary for Children With Learning Disabilities

Science.gov (United States)

Donovan, Kelsey Claire

The purposes of this study were (a) to determine if using the video learning game Quizlet in a middle school resource classroom increases science vocabulary acquisition of students with learning disabilities, (b) to determine if using the video learning game Quizlet in a middle school resource classroom increases the student engagement/on-task behavior of students with learning disabilities, and (c) to evaluate student comfort and satisfaction in using the video learning game Quizlet in a middle school resource classroom. Six middle school students, three female and three male participated in the study. A single subject design with ABAB phases was utilized over eight weeks. Results show that all students increased their science vocabulary acquisition and increased their on-task behaviors. A follow-up student satisfaction survey determined that the intervention was acceptable to all students. Further research to assess the effects of Quizlet is recommended.

Engineering a Live UHD Program from the International Space Station

Science.gov (United States)

Grubbs, Rodney; George, Sandy

2017-01-01

The first-ever live downlink of Ultra-High Definition (UHD) video from the International Space Station (ISS) was the highlight of a “Super Session” at the National Association of Broadcasters (NAB) Show in April 2017. Ultra-High Definition is four times the resolution of “full HD” or “1080P” video. Also referred to as “4K”, the Ultra-High Definition video downlink from the ISS all the way to the Las Vegas Convention Center required considerable planning, pushed the limits of conventional video distribution from a space-craft, and was the first use of High Efficiency Video Coding (HEVC) from a space-craft. The live event at NAB will serve as a pathfinder for more routine downlinks of UHD as well as use of HEVC for conventional HD downlinks to save bandwidth. A similar demonstration was conducted in 2006 with the Discovery Channel to demonstrate the ability to stream HDTV from the ISS. This paper will describe the overall work flow and routing of the UHD video, how audio was synchronized even though the video and audio were received many seconds apart from each other, and how the demonstration paves the way for not only more efficient video distribution from the ISS, but also serves as a pathfinder for more complex video distribution from deep space. The paper will also describe how a “live” event was staged when the UHD video coming from the ISS had a latency of 10+ seconds. In addition, the paper will touch on the unique collaboration between the inherently governmental aspects of the ISS, commercial partners Amazon and Elemental, and the National Association of Broadcasters.

Surgical gesture classification from video and kinematic data.

Science.gov (United States)

Zappella, Luca; Béjar, Benjamín; Hager, Gregory; Vidal, René

2013-10-01

Much of the existing work on automatic classification of gestures and skill in robotic surgery is based on dynamic cues (e.g., time to completion, speed, forces, torque) or kinematic data (e.g., robot trajectories and velocities). While videos could be equally or more discriminative (e.g., videos contain semantic information not present in kinematic data), they are typically not used because of the difficulties associated with automatic video interpretation. In this paper, we propose several methods for automatic surgical gesture classification from video data. We assume that the video of a surgical task (e.g., suturing) has been segmented into video clips corresponding to a single gesture (e.g., grabbing the needle, passing the needle) and propose three methods to classify the gesture of each video clip. In the first one, we model each video clip as the output of a linear dynamical system (LDS) and use metrics in the space of LDSs to classify new video clips. In the second one, we use spatio-temporal features extracted from each video clip to learn a dictionary of spatio-temporal words, and use a bag-of-features (BoF) approach to classify new video clips. In the third one, we use multiple kernel learning (MKL) to combine the LDS and BoF approaches. Since the LDS approach is also applicable to kinematic data, we also use MKL to combine both types of data in order to exploit their complementarity. Our experiments on a typical surgical training setup show that methods based on video data perform equally well, if not better, than state-of-the-art approaches based on kinematic data. In turn, the combination of both kinematic and video data outperforms any other algorithm based on one type of data alone. Copyright © 2013 Elsevier B.V. All rights reserved.

Summer High School Apprenticeship Research Program (SHARP) of the National Aeronautics and Space Administration

Science.gov (United States)

1984-01-01

A total of 125 talented high school students had the opportunity to gain first hand experience about science and engineering careers by working directly with a NASA scientist or engineer during the summer. This marked the fifth year of operation for NASA's Summer High School Apprenticehsip Research Program (SHARP). Ferguson Bryan served as the SHARP contractor and worked closely with NASA staff at Headquarters and the eight participating sites to plan, implement, and evaluate the Program. The main objectives were to strengthen SHARP and expand the number of students in the Program. These eight sites participated in the Program: Ames Research Center North, Ames' Dryden Flight Research Facility, Goddard Space Flight Center, Goddard's Wallops Flight Facility, Kennedy Space Center, Langley Research Center, Lewis Research Center, and Marshall Space Flight Center.

VideoSET: Video Summary Evaluation through Text

OpenAIRE

Yeung, Serena; Fathi, Alireza; Fei-Fei, Li

2014-01-01

In this paper we present VideoSET, a method for Video Summary Evaluation through Text that can evaluate how well a video summary is able to retain the semantic information contained in its original video. We observe that semantics is most easily expressed in words, and develop a text-based approach for the evaluation. Given a video summary, a text representation of the video summary is first generated, and an NLP-based metric is then used to measure its semantic distance to ground-truth text ...

Memory Space / Time Lived in Representation to Mental Maps: The Case of School Project "our neighborhood, our place"

Directory of Open Access Journals (Sweden)

Lucinei Pereira da Silva

2012-12-01

Full Text Available The representations and memory of living space are essential to developing mental maps and cartographic documents. In this regard this investigation as a primary objective to understand how mind maps can contribute pedagogically classes in Geography and History as well, breaking the dichotomy space / time. From the point of view of theoretical and methodological the research relied on the analysis of the school project “Our Neighborhood, Our Place” developed at the Municipal School “Vereador Hamilton Teodoro” in Governador Valadares (MG, along with a group of 7th grades from elementary school and the articulation of authors who discuss the concepts of representation, memory, space and place.

A cross-sectional analysis of video games and attention deficit hyperactivity disorder symptoms in adolescents

Science.gov (United States)

Chan, Philip A; Rabinowitz, Terry

2006-01-01

Background Excessive use of the Internet has been associated with attention deficit hyperactivity disorder (ADHD), but the relationship between video games and ADHD symptoms in adolescents is unknown. Method A survey of adolescents and parents (n = 72 adolescents, 72 parents) was performed assessing daily time spent on the Internet, television, console video games, and Internet video games, and their association with academic and social functioning. Subjects were high school students in the ninth and tenth grade. Students were administered a modified Young's Internet Addiction Scale (YIAS) and asked questions about exercise, grades, work, and school detentions. Parents were asked to complete the Conners' Parent Rating Scale (CPRS) and answer questions regarding medical/psychiatric conditions in their child. Results There was a significant association between time spent playing games for more than one hour a day and YIAS (p the "Inattention" and "ADHD" components of the CPRS (p ≤ 0.001 and p ≤ 0.020, respectively). No significant association was found between body mass index (BMI), exercise, number of detentions, or the "Oppositional" and "Hyperactivity" components of CPRS and video game use. Conclusion Adolescents who play more than one hour of console or Internet video games may have more or more intense symptoms of ADHD or inattention than those who do not. Given the possible negative effects these conditions may have on scholastic performance, the added consequences of more time spent on video games may also place these individuals at increased risk for problems in school. PMID:17059614

Children and video games: addiction, engagement, and scholastic achievement.

Science.gov (United States)

Skoric, Marko M; Teo, Linda Lay Ching; Neo, Rachel Lijie

2009-10-01

The aim of this study is to assess the relationship between video gaming habits and elementary school students' academic performance. More specifically, we seek to examine the usefulness of a distinction between addiction and high engagement and assess the predictive validity of these concepts in the context of scholastic achievement. Three hundred thirty-three children ages 8 to 12 years from two primary schools in Singapore were selected to participate in this study. A survey utilizing Danforth's Engagement-Addiction (II) scale and questions from DSM-IV was used to collect information from the schoolchildren, while their grades were obtained directly from their teachers. The findings indicate that addiction tendencies are consistently negatively related to scholastic performance, while no such relationship is found for either time spent playing games or for video game engagement. The implications of these findings are discussed.

Using Video Game Design to Motivate Students

Science.gov (United States)

Evans, Michael A.; Jones, Brett D.; Akalin, Sehmuz

2017-01-01

Because video games are so popular with young people, researchers have explored ways to use game play to engage students in school subjects (Peppler & Kafai, 2007; Rockwell & Kee, 2011; Small, 2011). Motivating students in science is especially important because of declines both in the number of young people who choose science careers and…

Associations of school violence with physical activity among U.S. high school students.

Science.gov (United States)

Demissie, Zewditu; Lowry, Richard; Eaton, Danice K; Hertz, Marci F; Lee, Sarah M

2014-05-01

This study investigated associations of violence-related behaviors with physical activity (PA)-related behaviors among U.S. high school students. Data from the 2009 national Youth Risk Behavior Survey, a cross-sectional survey of a nationally representative sample of 9th-12th grade students, were analyzed. Sex-stratified, adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were estimated for associations between violence-related behaviors and being physically active for ≥60 minutes daily, sports participation, TV watching for ≥3 hours/day, and video game/computer use for ≥3 hours/day. Among male students, at-school bullying victimization was negatively associated with daily PA (aOR: 0.72; 95% CI: 0.58-0.87) and sports participation; skipping school because of safety concerns was positively associated with video game/computer use (1.42; 1.01-2.00); and physical fighting was positively associated with daily PA. Among female students, at-school bullying victimization and skipping school because of safety concerns were both positively associated with video game/computer use (1.46; 1.19-1.79 and 1.60; 1.09-2.34, respectively), and physical fighting at school was negatively associated with sports participation and positively associated with TV watching. Bullying victimization emerged as a potentially important risk factor for insufficient PA. Schools should consider the role of violence in initiatives designed to promote PA.

The Los Alamos Space Weather Summer School: Career and Research Benefits to Students and Mentors

Science.gov (United States)

Cowee, M.; Woodroffe, J. R.

2017-12-01

In 2016 we held the 6th Los Alamos Space Weather Summer School. This 8-week long program is designed for mid-career graduate students in related fields to come to LANL, receive lectures on space physics and space environment topics, and carry out a research project under the mentorship of LANL staff members. We accept typically 6-8 students via competitive admissions to the program, with a strong applicant pool to choose from. This type of summer school program is relatively unique in the space physics community—there are several other summer schools but they are of shorter duration and do not include the mentor-research project aspect which builds a strong one-on-one connection between the summer student and his/her LANL mentor(s). From the LANL perspective, this program was intended to have several benefits including building collaborations between LANL staff and universities and recruitment of potential postdocs. From the student perspective, this program is not only an educational opportunity but a strong networking opportunity and a chance to enhance their professional skills and publication record. Students are permitted to work on projects directly related to their thesis or on projects in areas that are completely new to them. At the end of the summer school, the students also develop their presentation skills by preparing and giving AGU-style presentations on their research projects to the research group. Over the past five years the summer school has increased in popularity, and the feedback from the student participants has been very positive. Alumni of the program have continued collaborations with their mentors, resulting in publications and conference presentations, and three postdoc hires to date.

Impact of an active educational video game on children’s motivation, science knowledge, and physical activity

Institute of Scientific and Technical Information of China (English)

Haichun Sun; Yong Gao

2016-01-01

Background: Active educational video games (AVGs) appear to have a positive effect on elementary school students’ motivation leading to enhanced learning outcomes. The purpose of this study was to identify the effectiveness of an AVG on elementary school students’ science knowledge learning, physical activity (PA) level, and interest-based motivation. Methods: In this randomized controlled study, 53 elementary school students were assigned to an experimental condition or a comparison condition. The experimental condition provided an AVG learning environment, whereas the comparison condition was based on sedentary educational video games. Results: The results of repeated measures analysis of variance (ANOVA) on the knowledge test showed that students in both groups performed better on the post-test than they did on the pre-test (p Conclusion: These results suggest that AVGs benefit children more in terms of PA and motivation than traditional video games by providing an enjoyable learning experience and sufficient PA.

Using Video in Urban Elementary Professional Development to Support Digital Media Arts Integration

Science.gov (United States)

Woodard, Rebecca; Machado, Emily

2017-01-01

Using ethnographic methods, this article looks closely at how a team of first-grade teachers and digital media artists in an urban elementary school used video in innovative ways during professional development over the course of one year. Extending a body of literature that primarily documents how video can be used as a tool in professional…

A cross-sectional analysis of video games and attention deficit hyperactivity disorder symptoms in adolescents

OpenAIRE

Rabinowitz Terry; Chan Philip A

2006-01-01

Abstract Background Excessive use of the Internet has been associated with attention deficit hyperactivity disorder (ADHD), but the relationship between video games and ADHD symptoms in adolescents is unknown. Method A survey of adolescents and parents (n = 72 adolescents, 72 parents) was performed assessing daily time spent on the Internet, television, console video games, and Internet video games, and their association with academic and social functioning. Subjects were high school students...

Elite International Schools in the Global South: Transnational Space, Class Relationalities and the "Middling" International Schoolteacher

Science.gov (United States)

Tarc, Paul; Mishra Tarc, Aparna

2015-01-01

The elite international school is a rich site for sociological inquiry in global times. In this paper, we conceptualize the international school as a transnational space of agonist social class-making given the dynamic positioning of the complement of international school actors. We position international schoolteachers in the middle of these…

Media space of the modern school

Directory of Open Access Journals (Sweden)

Anna A. Vakneeva

2017-01-01

Full Text Available What should be the media of a modern education institution? How is the educational organization supposed to be represented in social media? What methods of increasing the level of media literacy of teachers and students should optimally use?As the purpose of this study the authors can see in the development and presentation of an optimal model of media space for modern educational institutions which will take into account not only the changes in the education process, but also the needs of the modern audience – teachers, students, parents, and educational partners. The resources of “Moscow e-school” become part of the educational media sphere of modern educational organizations.Resources and methods: resources of an educational institution, namely, social media, blogs and microblogs, users’ accounts, channels, educational platforms, which present the work of educators. The importance of analyzing media of the modern educational institution is that media-education serves as a pedagogical system, allowing the use of modern techniques and technologies through the development of critical thinking, which occurs under the influence of information flows. In this regard, there is a need for the comprehensive approach to the media organization in the modern school. An integral element of the complex approach is the creation of conditions for the development of media literacy for teachers and learners.The result of this research is the optimal model of media space for the modern school, which includes social networking profiles, microblogging, blogs, users’ accounts, and web resources, each of which has its own purpose and functional features.As a conclusion we can note that one of the core values of the media model is the development of creative and critical thinking, the acquisition of experience and tools of media, independent search, the ability to use information flows for the effective communication, solving educational and cognitive

Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast

KAUST Repository

She, James

2009-11-01

Emerging technologies in Broadband Wireless Access (BWA) networks and video coding have enabled high-quality wireless video broadcast/multicast services in metropolitan areas. Joint source-channel coded wireless transmission, especially using hierarchical/superposition coded modulation at the channel, is recognized as an effective and scalable approach to increase the system scalability while tackling the multi-user channel diversity problem. The power allocation and modulation selection problem, however, is subject to a high computational complexity due to the nonlinear formulation and huge solution space. This paper introduces a dynamic programming framework with conditioned parsing, which significantly reduces the search space. The optimized result is further verified with experiments using real video content. The proposed approach effectively serves as a generalized and practical optimization framework that can gauge and optimize a scalable wireless video broadcast/multicast based on multi-resolution modulation in any BWA network.

Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast

KAUST Repository

She, James; Ho, Pin-Han; Shihada, Basem

2009-01-01

Emerging technologies in Broadband Wireless Access (BWA) networks and video coding have enabled high-quality wireless video broadcast/multicast services in metropolitan areas. Joint source-channel coded wireless transmission, especially using hierarchical/superposition coded modulation at the channel, is recognized as an effective and scalable approach to increase the system scalability while tackling the multi-user channel diversity problem. The power allocation and modulation selection problem, however, is subject to a high computational complexity due to the nonlinear formulation and huge solution space. This paper introduces a dynamic programming framework with conditioned parsing, which significantly reduces the search space. The optimized result is further verified with experiments using real video content. The proposed approach effectively serves as a generalized and practical optimization framework that can gauge and optimize a scalable wireless video broadcast/multicast based on multi-resolution modulation in any BWA network.

Space Science in Project SMART: A UNH High School Outreach Program

Science.gov (United States)

Smith, C. W.; Broad, L.; Goelzer, S.; Lessard, M.; Levergood, R.; Lugaz, N.; Moebius, E.; Schwadron, N.; Torbert, R. B.; Zhang, J.; Bloser, P. F.

2016-12-01

Every summer for the past 25 years the University of New Hampshire (UNH) has run a month-long, residential outreach program for high school students considering careers in mathematics, science, or engineering. Space science is one of the modules. Students work directly with UNH faculty performing original work with real spacecraft data and hardware and present the results of that effort at the end of the program. Recent research topics have included interplanetary waves and turbulence as recorded by the ACE and Voyager spacecraft, electromagnetic ion cyclotron (EMIC) waves seen by the RBSP spacecraft, interplanetary coronal mass ejections (ICME) acceleration and interstellar pickup ions as seen by the STEREO spacecraft, and prototyping CubeSat hardware. Student research efforts can provide useful results for future research efforts by the faculty while the students gain unique exposure to space physics and a science career. In addition, the students complete a team project. Since 2006, that project has been the construction and flight of a high-altitude balloon payload and instruments. The students typically build the instruments they fly. In the process, students learn circuit design and construction, microcontroller programming, and core atmospheric and space science. Our payload design has evolved significantly since the first flight of a simple rectangular box and now involves a stable descent vehicle that does not require a parachute, an on-board flight control computer, in-flight autonomous control and data acquisition of multiple student-built instruments, and real-time camera images sent to ground. This is a program that can be used as a model for other schools to follow and that high schools can initiate. More information can be found at .

Assessing twenty-first century skills through a teacher created video game for high school biology students

Science.gov (United States)

Annetta, Leonard A.; Cheng, Meng-Tzu; Holmes, Shawn

2010-07-01

As twenty-first century skills become a greater focus in K-12 education, an infusion of technology that meets the needs of today's students is paramount. This study looks at the design and creation of a Multiplayer Educational Gaming Application (MEGA) for high school biology students. The quasi-experimental, qualitative design assessed the twenty-first century skills of digital age literacy, inventive thinking, high productivity, and effective communication techniques of the students exposed to a MEGA. Three factors, as they pertained to these skills, emerged from classroom observations. Interaction with the teacher, discussion with peers, and engagement/time-on-task while playing the MEGA suggested that students playing an educational video game exhibited all of the projected twenty-first century skills while being engrossed in the embedded science content.

Serious Games: Video Game Design Techniques for Academic and Commercial Communication

OpenAIRE

Bull-Hansen, Christian

2007-01-01

Serious Games: Video game design techniques for academic and commercial communication, by Christian Bull-Hansen, Department of Informatics, University of Oslo, Norway. Traditional academic and commercial communication sources, like schools and television, are losing ground to video games. People of all ages spend increasingly more time engaged in virtual worlds and on the Internet, and are becoming used to actively pursuing the information they want to know more about, while rejecting the...

Alternative Fuels Data Center: Fleet Application for School Transportation

Science.gov (United States)

Propane Buses Jan. 26, 2016 Video thumbnail for Biodiesel Offers an Easy Alternative for Fleets Biodiesel thumbnail for Biodiesel Fuels Education in Alabama Biodiesel Fuels Education in Alabama May 1, 2012 Video School Transportation Videos on YouTube Video thumbnail for New Hampshire Cleans up with Biodiesel Buses

The role of empathy in making availability judgments from video and silhouette awareness information

NARCIS (Netherlands)

Ruyter, de B.E.R.; Baha, S.E.; Pijl, M.; Markopoulos, P.

2011-01-01

This paper reports research concerning video media spaces for the home and specifically the extent to which different approaches for video obfuscation can balance conflicting requirements for awareness between connected individuals and privacy. Different filtering techniques were compared regarding

Can the implementation of aerospace science in elementary school help girls maintain their confidence and engagement in science as they transition to middle school?

Science.gov (United States)

Solberg, Margot

2018-06-01

There is a global crisis due to a lack of qualified applicants entering STEM careers, especially in science. Add the fact that women are greatly underrepresented in science, and the solution becomes obvious. Go to the source, and find out why girls as young as 12 years old are losing an interest in scientific endeavors that they once found to be captivating. This action research project sought to find out if the implementation of aerospace science, embedded both in the classroom and in an after school Space Club, could assist girls in maintaining their confidence and engagement in science overall as they transition to middle school. Furthermore, girls in fifth through seventh grade, who had previously been the teacher researcher's students, were included in the study in order to discover if their previous participation in a variety of authentic and ongoing aerospace activities had any impact upon their engagement in science as they entered the notable years of declined interest. The research took place at an international American school, Academia Cotopaxi, in Quito, Ecuador from September 2015 through April 2016. Data was collected through both qualitative and quantitative sources, and included attitude surveys, parent questionnaires, a writing prompt, photos, video, interviews and observations. Additionally, a control group was utilized in grades five to seven for purposes of comparison. Innovative activities included engaging and first-hand experiences with the Ecuadorian Civilian Space Agency (EXA), the National Aeronautics Space Administration (NASA), Space X and the Canadian Space Agency (CSA). Inquiry-based activities included, but were not limited to, experiences with: speaking live with both astronauts and cosmonauts on the International Space Station, robotics, rocketry, Skype chats with aerospace professionals, utilizing the Design Process, online resources and more. Findings suggested that embedding aerospace science in grade four, both during and after

Video Game Characters. Theory and Analysis

Directory of Open Access Journals (Sweden)

Felix Schröter

2014-06-01

Full Text Available This essay develops a method for the analysis of video game characters based on a theoretical understanding of their medium-specific representation and the mental processes involved in their intersubjective construction by video game players. We propose to distinguish, first, between narration, simulation, and communication as three modes of representation particularly salient for contemporary video games and the characters they represent, second, between narrative, ludic, and social experience as three ways in which players perceive video game characters and their representations, and, third, between three dimensions of video game characters as ‘intersubjective constructs’, which usually are to be analyzed not only as fictional beings with certain diegetic properties but also as game pieces with certain ludic properties and, in those cases in which they function as avatars in the social space of a multiplayer game, as representations of other players. Having established these basic distinctions, we proceed to analyze their realization and interrelation by reference to the character of Martin Walker from the third-person shooter Spec Ops: The Line (Yager Development 2012, the highly customizable player-controlled characters from the role-playing game The Elder Scrolls V: Skyrim (Bethesda 2011, and the complex multidimensional characters in the massively multiplayer online role-playing game Star Wars: The Old Republic (BioWare 2011-2014.

The appeal of violent video games to lower educated aggressive adolescent boys from two countries

NARCIS (Netherlands)

Lemmens, J.S.; Bushman, B.J.; Konijn, E.A.

2006-01-01

The objective of this study was to test the effect of individual differences on appeal and use of video games. Participants were 299 adolescent boys from lower and higher secondary schools in the Netherlands and Belgium. In general, boys were most attracted to violent video games. Boys that scored

Know Stroke: Know the Signs, Act in Time Video

Medline Plus

Full Text Available ... Brochures » Toolkits and Posters » Radio PSAs » Videos and TV PSAs » Widgets » Infographics Health Professional Resources Campaign Partners ... Dr. Galen Henderson, Harvard Medical School, Brigham and Women's Hospital: "Strokes are preventable, they can be prevented, ...

Video games to engage boys and meet common core : A teacher’s guide

NARCIS (Netherlands)

Engerman, J.

2015-01-01

Boys are disengaged from school and are rapidly becoming alienated. Video games show promise to engage boys in motivating and exciting ways. This paper explores the merits of game play, while discovering links between what boys learn in games and the standards that schools administer. Based on

The effectiveness of streaming video on medical student learning: a case study.

Science.gov (United States)

Bridge, Patrick D; Jackson, Matt; Robinson, Leah

2009-08-19

Information technology helps meet today's medical students' needs by providing multiple curriculum delivery methods. Video streaming is an e-learning technology that uses the Internet to deliver curriculum while giving the student control of the content's delivery. There have been few studies conducted on the effectiveness of streaming video in medical schools. A 5-year retrospective study was conducted using three groups of students (n = 1736) to determine if the availability of streaming video in Years 1-2 of the basic science curriculum affected overall Step 1 scores for first-time test-takers. The results demonstrated a positive effect on program outcomes as streaming video became more readily available to students. Based on these findings, streaming video technology seems to be a viable tool to complement in-class delivery methods, to accommodate the needs of medical students, and to provide options for meeting the challenges of delivering the undergraduate medical curriculum. Further studies need to be conducted to continue validating the effectiveness of streaming video technology.

Video Game Rehabilitation of Velopharyngeal Dysfunction: A Case Series.

Science.gov (United States)

Cler, Gabriel J; Mittelman, Talia; Braden, Maia N; Woodnorth, Geralyn Harvey; Stepp, Cara E

2017-06-22

Video games provide a promising platform for rehabilitation of speech disorders. Although video games have been used to train speech perception in foreign language learners and have been proposed for aural rehabilitation, their use in speech therapy has been limited thus far. We present feasibility results from at-home use in a case series of children with velopharyngeal dysfunction (VPD) using an interactive video game that provided real-time biofeedback to facilitate appropriate nasalization. Five participants were recruited across a range of ages, VPD severities, and VPD etiologies. Participants completed multiple weeks of individual game play with a video game that provides feedback on nasalization measured via nasal accelerometry. Nasalization was assessed before and after training by using nasometry, aerodynamic measures, and expert perceptual judgments. Four participants used the game at home or school, with the remaining participant unwilling to have the nasal accelerometer secured to his nasal skin, perhaps due to his young age. The remaining participants showed a tendency toward decreased nasalization after training, particularly for the words explicitly trained in the video game. Results suggest that video game-based systems may provide a useful rehabilitation platform for providing real-time feedback of speech nasalization in VPD. https://doi.org/10.23641/asha.5116828.

Video Game Rehabilitation of Velopharyngeal Dysfunction: A Case Series

Science.gov (United States)

Mittelman, Talia; Braden, Maia N.; Woodnorth, Geralyn Harvey; Stepp, Cara E.

2017-01-01

Purpose Video games provide a promising platform for rehabilitation of speech disorders. Although video games have been used to train speech perception in foreign language learners and have been proposed for aural rehabilitation, their use in speech therapy has been limited thus far. We present feasibility results from at-home use in a case series of children with velopharyngeal dysfunction (VPD) using an interactive video game that provided real-time biofeedback to facilitate appropriate nasalization. Method Five participants were recruited across a range of ages, VPD severities, and VPD etiologies. Participants completed multiple weeks of individual game play with a video game that provides feedback on nasalization measured via nasal accelerometry. Nasalization was assessed before and after training by using nasometry, aerodynamic measures, and expert perceptual judgments. Results Four participants used the game at home or school, with the remaining participant unwilling to have the nasal accelerometer secured to his nasal skin, perhaps due to his young age. The remaining participants showed a tendency toward decreased nasalization after training, particularly for the words explicitly trained in the video game. Conclusion Results suggest that video game–based systems may provide a useful rehabilitation platform for providing real-time feedback of speech nasalization in VPD. Supplemental Material https://doi.org/10.23641/asha.5116828 PMID:28655049

WWC Review of the Report "The Effects of Math Video Games on Learning." What Works Clearinghouse Single Study Review

Science.gov (United States)

What Works Clearinghouse, 2015

2015-01-01

In the 2014 study, "The Effects of Math Video Games on Learning," researchers examined the impacts of math video games on the fractions knowledge of 1,468 sixth-grade students in 23 schools. The video games focused on fractions concepts including: whole units, numerator and denominator, understanding the number line, fractions…

Joint Rendering and Segmentation of Free-Viewpoint Video

Directory of Open Access Journals (Sweden)

Ishii Masato

2010-01-01

Full Text Available Abstract This paper presents a method that jointly performs synthesis and object segmentation of free-viewpoint video using multiview video as the input. This method is designed to achieve robust segmentation from online video input without per-frame user interaction and precomputations. This method shares a calculation process between the synthesis and segmentation steps; the matching costs calculated through the synthesis step are adaptively fused with other cues depending on the reliability in the segmentation step. Since the segmentation is performed for arbitrary viewpoints directly, the extracted object can be superimposed onto another 3D scene with geometric consistency. We can observe that the object and new background move naturally along with the viewpoint change as if they existed together in the same space. In the experiments, our method can process online video input captured by a 25-camera array and show the result image at 4.55 fps.

Creating Video Games in a Middle School Language Arts Classroom: A Narrative Account

Science.gov (United States)

Oldaker, Adam

2010-01-01

This article describes the author's experience co-facilitating a project for which seventh-grade students designed and created original video games based on Madeleine L'Engle's "A Wrinkle in Time". The author provides an overview of recent literature on video game implementation in the classroom and explains how the project was designed and…

Evaluation of the effectiveness of color attributes for video indexing

Science.gov (United States)

Chupeau, Bertrand; Forest, Ronan

2001-10-01

Color features are reviewed and their effectiveness assessed in the application framework of key-frame clustering for abstracting unconstrained video. Existing color spaces and associated quantization schemes are first studied. Description of global color distribution by means of histograms is then detailed. In our work, 12 combinations of color space and quantization were selected, together with 12 histogram metrics. Their respective effectiveness with respect to picture similarity measurement was evaluated through a query-by-example scenario. For that purpose, a set of still-picture databases was built by extracting key frames from several video clips, including news, documentaries, sports and cartoons. Classical retrieval performance evaluation criteria were adapted to the specificity of our testing methodology.

Play as Third Space between Home and School: Bridging Cultural Discourses

Science.gov (United States)

Yahya, Raudhah; Wood, Elizabeth Ann

2017-01-01

This article examines play as a conceptual third space that serves as a bridge between home and school discourses. Using sociocultural theories and an interpretivist framework, 19 immigrant mothers and their children in Canada were interviewed about their play experiences at home and in preschools. The findings reveal that children and teachers…

Van Allen Probes Mission Space Academy: Educating middle school students about Earth's mysterious radiation belts

Science.gov (United States)

Butler, L.; Turney, D.; Matiella Novak, A.; Smith, D.; Simon, M.

2013-12-01

How's the weather in space? Why on Earth did NASA send two satellites above Earth to study radiation belts and space weather? To learn the answer to questions about NASA's Van Allen Probes mission, 450 students and their teachers from Maryland middle schools attended Space Academy events highlighting the Van Allen Probes mission. Sponsored by the Applied Physics Laboratory (APL) and Discovery Education, the events are held at the APL campus in Laurel, MD. Space Academies take students and teachers on behind-the-scenes exploration of how spacecraft are built, what they are designed to study, and introduces them to the many professionals that work together to create some of NASA's most exciting projects. Moderated by a public relations representative in the format of an official NASA press conference, the daylong event includes a student press conference with students as reporters and mission experts as panelists. Lunch with mission team members gives students a chance to ask more questions. After lunch, students don souvenir clean room suits, enjoy interactive science demonstrations, and tour APL facilities where the Van Allen Probes were built and tested before launch. Students may even have an opportunity to peek inside a clean room to view spacecraft being assembled. Prior to the event, teachers are provided with classroom activities, lesson plans, and videos developed by APL and Discovery Education to help prepare students for the featured mission. The activities are aligned to National Science Education Standards and appropriate for use in the classroom. Following their visit, student journalists are encouraged to write a short article about their field trip; selections are posted on the Space Academy web site. Designed to engage, inspire, and influence attitudes about space science and STEM careers, Space Academies provide an opportunity to attract underserved populations and emphasize that space science is for everyone. Exposing students to a diverse group of

Interactive Music Video Games and Children's Musical Development

Science.gov (United States)

Gower, Lily; McDowall, Janet

2012-01-01

Interactive music video games are a readily available, mainstream technology but they are not generally seen as educative tools. Nor are they established within school teaching and learning environments. This study investigated children's use of these games from a music education perspective. Nine children, aged 9-11 years, and two specialist…

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

Video Browsing on Handheld Devices

Science.gov (United States)

Hürst, Wolfgang

Recent improvements in processing power, storage space, and video codec development enable users now to playback video on their handheld devices in a reasonable quality. However, given the form factor restrictions of such a mobile device, screen size still remains a natural limit and - as the term "handheld" implies - always will be a critical resource. This is not only true for video but any data that is processed on such devices. For this reason, developers have come up with new and innovative ways to deal with large documents in such limited scenarios. For example, if you look at the iPhone, innovative techniques such as flicking have been introduced to skim large lists of text (e.g. hundreds of entries in your music collection). Automatically adapting the zoom level to, for example, the width of table cells when double tapping on the screen enables reasonable browsing of web pages that have originally been designed for large, desktop PC sized screens. A multi touch interface allows you to easily zoom in and out of large text documents and images using two fingers. In the next section, we will illustrate that advanced techniques to browse large video files have been developed in the past years, as well. However, if you look at state-of-the-art video players on mobile devices, normally just simple, VCR like controls are supported (at least at the time of this writing) that only allow users to just start, stop, and pause video playback. If supported at all, browsing and navigation functionality is often restricted to simple skipping of chapters via two single buttons for backward and forward navigation and a small and thus not very sensitive timeline slider.

Transana Video Analysis Software as a Tool for Consultation: Applications to Improving PTA Meeting Leadership

Science.gov (United States)

Rush, Craig

2012-01-01

The chief aim of this article is to illustrate the potential of using Transana, a qualitative video analysis tool, for effective and efficient school-based consultation. In this illustrative study, the Transana program facilitated analysis of excerpts of video from a representative sample of Parent Teacher Association (PTA) meetings over the…

SP.ACE: taking secondary school students' hearts and minds "up, up and away"

Science.gov (United States)

de Schrijver, Erik

2005-08-01

Secondary school students were given the opportunity to build and fly "pongsats" (small experiments weighing under 100 grams each, and packed inside a ping pong ball) on high-altitude balloons bound for 100000 feet, or 30 km: the edge of space. The need to acquire the knowledge and know-how to build successful experiments gave birth to the SP.ACE project. Over their last 3 years of secondary education, students are now learning about flight vehicles, the physical conditions in space, microcontrollers, sensors, programming, data logging, flight path analysis, and much more.

The Impact of Video Games in Children-s Learning of Mathematics

OpenAIRE

Muhammad Ridhuan Tony Lim Abdullah; Zulqarnain Abu Bakar; Razol Mahari Ali; Ibrahima Faye; Hilmi Hasan

2012-01-01

This paper describes a research project on Year 3 primary school students in Malaysia in their use of computer-based video game to enhance learning of multiplication facts (tables) in the Mathematics subject. This study attempts to investigate whether video games could actually contribute to positive effect on children-s learning or otherwise. In conducting this study, the researchers assume a neutral stand in the investigation as an unbiased outcome of the study would render reliable respons...

Using video games to combine learning and assessment in mathematics education

OpenAIRE

Kristian Juha Mikael Kiili; Keith Devlin; Arttu Perttula; Pauliina Tuomi; Antero Lindstedt

2015-01-01

One problem with most education systems is that learning and (summative) assessment are generally treated as quite separate things in schools. We argue that video games can provide an opportunity to combine these processes in an engaging and effective way. The present study focuses on investigating the effectiveness and the assessment power of two different mathematics video games, Semideus and Wuzzit Trouble. In the current study, we validated the Semideus game as a rational number test inst...

Enhancing Students' Speaking Skills through "Kunci Inggris" Videos in Islamic Junior High School

Science.gov (United States)

Erlangga, Rifqi Aulia

2016-01-01

Personal ability of a teacher when integrated with good learning material will make his students get more involved and absorb teaching material better hence improving their foreign language. There are many materials may be used to teach, one of them is videos. The video is expected to trigger students' enthusiasm and improve their motivation. Even…

Engineering task plan for flammable gas atmosphere mobile color video camera systems

International Nuclear Information System (INIS)

Kohlman, E.H.

1995-01-01

This Engineering Task Plan (ETP) describes the design, fabrication, assembly, and testing of the mobile video camera systems. The color video camera systems will be used to observe and record the activities within the vapor space of a tank on a limited exposure basis. The units will be fully mobile and designed for operation in the single-shell flammable gas producing tanks. The objective of this tank is to provide two mobile camera systems for use in flammable gas producing single-shell tanks (SSTs) for the Flammable Gas Tank Safety Program. The camera systems will provide observation, video recording, and monitoring of the activities that occur in the vapor space of applied tanks. The camera systems will be designed to be totally mobile, capable of deployment up to 6.1 meters into a 4 inch (minimum) riser

MIT-NASA/KSC space life science experiments - A telescience testbed

Science.gov (United States)

Oman, Charles M.; Lichtenberg, Byron K.; Fiser, Richard L.; Vordermark, Deborah S.

1990-01-01

Experiments performed at MIT to better define Space Station information system telescience requirements for effective remote coaching of astronauts by principal investigators (PI) on the ground are described. The experiments were conducted via satellite video, data, and voice links to surrogate crewmembers working in a laboratory at NASA's Kennedy Space Center. Teams of two PIs and two crewmembers performed two different space life sciences experiments. During 19 three-hour interactive sessions, a variety of test conditions were explored. Since bit rate limits are necessarily imposed on Space Station video experiments surveillance video was varied down to 50 Kb/s and the effectiveness of PI controlled frame rate, resolution, grey scale, and color decimation was investigated. It is concluded that remote coaching by voice works and that dedicated crew-PI voice loops would be of great value on the Space Station.

Use of online clinical videos for clinical skills training for medical students: benefits and challenges.

Science.gov (United States)

Jang, Hye Won; Kim, Kyong-Jee

2014-03-21

Multimedia learning has been shown effective in clinical skills training. Yet, use of technology presents both opportunities and challenges to learners. The present study investigated student use and perceptions of online clinical videos for learning clinical skills and in preparing for OSCE (Objective Structured Clinical Examination). This study aims to inform us how to make more effective us of these resources. A mixed-methods study was conducted for this study. A 30-items questionnaire was administered to investigate student use and perceptions of OSCE videos. Year 3 and 4 students from 34 Korean medical schools who had access to OSCE videos participated in the online survey. Additionally, a semi-structured interview of a group of Year 3 medical students was conducted for an in-depth understanding of student experience with OSCE videos. 411 students from 31 medical schools returned the questionnaires; a majority of them found OSCE videos effective for their learning of clinical skills and in preparing for OSCE. The number of OSCE videos that the students viewed was moderately associated with their self-efficacy and preparedness for OSCE (p mobile devices; they agreed more with the statement that it was convenient to access the video clips than their peers who accessed the videos using computers (p students reported lack of integration into the curriculum and lack of interaction as barriers to more effective use of OSCE videos. The present study confirms the overall positive impact of OSCE videos on student learning of clinical skills. Having faculty integrate these learning resources into their teaching, integrating interactive tools into this e-learning environment to foster interactions, and using mobile devices for convenient access are recommended to help students make more effective use of these resources.

GPM GROUND VALIDATION PRECIPITATION VIDEO IMAGER (PVI) GCPEX V1

Data.gov (United States)

National Aeronautics and Space Administration — The GPM Ground Validation Precipitation Video Imager (PVI) GCPEx dataset collected precipitation particle images and drop size distribution data from November 2011...

Video Streaming Transfer in a Smart Satellite Mobile Environment

OpenAIRE

Celandroni, Nedo; Davoli, Franco; Ferro, Erina; Gotta, Alberto

2009-01-01

In the near future, transportation media are likely to become "smart spaces", where sophisticated services are offered to the passengers. Among such services, we concentrate on video streaming provided on buses that move in urban, suburban, or highway environments. A contents' source utilizes a satellite DVB-S2 link for transmitting video streams to a bus, which, in its turn, relays it to its passengers' devices. A bus works in a smart mode taking advantage of the knowledge of the exact point...

Association of sleep disturbances with TV and satellite watching and video games playing in 14-17 years old high school students of Qazvin

Directory of Open Access Journals (Sweden)

Sh. Jalilolghadr

2017-06-01

Full Text Available Background: Sleep plays an important role in health. Reduced levels of attention, learning and memory are of adverse outcomes of sleep disorders in students. Objective: The aim of this study was to determine the association of sleep disturbances with watching TV and satellite and playing video games in 14-17 years old high school students of Qazvin. Methods: This cross sectional study was conducted in 653 high school students (14-17 years old in Qazvin that were selected by multistage cluster random sampling method (2013-2014. Data were collected through Pediatric Sleep Questionnaire (PSQ and BEARS questionnaires. Data were analyzed using Chi-square test, T-test, ANOVA and logistic regression analysis. Findings: From 653 students, 392 (60% were female. The mean age was 15.73±0.99 years. The most prevalent sleep disturbances were waking up at night (74.4%, daytime sleepiness (69.8%, napping after school (66.6%, and nightmare (51.1%, respectively. Daytime sleepiness, nightmares, sleep after waking up, falling asleep in school, and nap after school time had significant association with watching satellite. Conclusion: With regards to the results, prevalence of sleep disorders was high in high school students of Qazvin and sleep disturbances were associated with duration of watching satellite.

Enhancing Secondary Science Content Accessibility with Video Games

Science.gov (United States)

Marino, Matthew T.; Becht, Kathleen M.; Vasquez, Eleazar, III; Gallup, Jennifer L.; Basham, James D.; Gallegos, Benjamin

2014-01-01

Mobile devices, including iPads, tablets, and so on, are common in high schools across the country. Unfortunately, many secondary teachers see these devices as distractions rather than tools for scaffolding instruction. This article highlights current research related to the use of video games as a means to increase the cognitive and social…

Syrian Mothers Producing Counterstories in Co-Constructed School Spaces: Rethinking the Role of Schools in Engaging Refugee Families

Science.gov (United States)

Karsli-Calamak, Elif

2018-01-01

This ethnographically informed field study, drawing on a blend of feminist theories and cultural learning pathways framework, reveals that Syrian mothers show strong presence and readiness to take active roles when opportunities present themselves in alternative spaces in the public schools of Turkey. As mothers produce counterstories in relation…

Content-based video retrieval by example video clip

Science.gov (United States)

Dimitrova, Nevenka; Abdel-Mottaleb, Mohamed

1997-01-01

This paper presents a novel approach for video retrieval from a large archive of MPEG or Motion JPEG compressed video clips. We introduce a retrieval algorithm that takes a video clip as a query and searches the database for clips with similar contents. Video clips are characterized by a sequence of representative frame signatures, which are constructed from DC coefficients and motion information (`DC+M' signatures). The similarity between two video clips is determined by using their respective signatures. This method facilitates retrieval of clips for the purpose of video editing, broadcast news retrieval, or copyright violation detection.

Immersive video

Science.gov (United States)

Moezzi, Saied; Katkere, Arun L.; Jain, Ramesh C.

1996-03-01

Interactive video and television viewers should have the power to control their viewing position. To make this a reality, we introduce the concept of Immersive Video, which employs computer vision and computer graphics technologies to provide remote users a sense of complete immersion when viewing an event. Immersive Video uses multiple videos of an event, captured from different perspectives, to generate a full 3D digital video of that event. That is accomplished by assimilating important information from each video stream into a comprehensive, dynamic, 3D model of the environment. Using this 3D digital video, interactive viewers can then move around the remote environment and observe the events taking place from any desired perspective. Our Immersive Video System currently provides interactive viewing and `walkthrus' of staged karate demonstrations, basketball games, dance performances, and typical campus scenes. In its full realization, Immersive Video will be a paradigm shift in visual communication which will revolutionize television and video media, and become an integral part of future telepresence and virtual reality systems.

Center for commercial applications of combustion in space (CCACS); A partnership for space commercialization at the Colorado School of Mines

Science.gov (United States)

Schowengerdt, F. D.; Kee, Bob; Linne, Mark; McKinnon, Tom; Moore, John; Parker, Terry; Readey, Dennis; Tilton, John E.; Helble, Joe

1997-01-01

The Center for Commercial Applications of Combustion in Space (CCACS) is a NASA/Industry/University consortium at the Colorado School of Mines (CSM). The mission of the Center is to assist industry in developing commercial products by conducting combustion research which takes advantage of the unique properties of space. By conducting experiments in near-zero gravity, convection and buoyancy effects can be minimized and new fundamental design-related knowledge can be gained which can be used to improve combustion-related products and processes on earth. Companies, government laboratories and universities most actively involved in CCACS at present include ABB Combustion, ADA Technologies, Advanced Refractory Technologies, Golden Technologies, Lockheed-Martin, Southwest Sciences, Space Systems/Lora, NASA-Lewis, JPL, the Baylor Dental School and the University of Connecticut. Products and processes of interest to the Center participants include industrial process combustors; catalytic combustion; Halon replacements; ceramic powders, whiskers and fibers; metal-matrix composites; NiTi for bone replacement; diamond coatings for oil-well drill bits; zeolites; imaging sensor arrays and other instrumentation for flame and particulate diagnostics. The center also assists member companies in marketing the resulting products and processes.

Prevalence and Correlates of Video and Internet Gaming Addiction among Hong Kong Adolescents: A Pilot Study

OpenAIRE

Wang, Chong-Wen; Chan, Cecilia L. W.; Mak, Kwok-Kei; Ho, Sai-Yin; Wong, Paul W. C.; Ho, Rainbow T. H.

2014-01-01

This pilot study investigated the patterns of video and internet gaming habits and the prevalence and correlates of gaming addiction in Hong Kong adolescents. A total of 503 students were recruited from two secondary schools. Addictive behaviors of video and internet gaming were assessed using the Game Addiction Scale. Risk factors for gaming addiction were examined using logistical regression. An overwhelming majority of the subjects (94%) reported using video or internet games, with one in ...

Self-induced stretch syncope of adolescence: a video-EEG documentation.

Science.gov (United States)

Mazzuca, Michel; Thomas, Pierre

2007-12-01

We present the first video-EEG documentation, with ECG and EMG features, of stretch syncope of adolescence in a young, healthy 16-year-old boy. Stretch syncope of adolescence is a rarely reported, benign cause of fainting in young patients, which can be confused with epileptic seizures. In our patient, syncopes were self-induced to avoid school. Dynamic transcranial Doppler showed evidence of blood flow decrease in both posterior cerebral arteries mimicking effects of a Valsalva manoeuvre. Dynamic angiogram of the vertebral arteries was normal. Hypotheses concerning the physiopathology are discussed. [Published with video sequences].

Video game play, child diet, and physical activity behavior change: A randomized clinical trial

Science.gov (United States)

Video games designed to promote behavior change are a promising venue to enable children to learn healthier behaviors. The purpose is to evaluate the outcome from playing "Escape from Diab" (Diab) and "Nanoswarm: Invasion from Inner Space" (Nano) video games on children's diet, physical activity, an...

Video demystified

CERN Document Server

Jack, Keith

2004-01-01

This international bestseller and essential reference is the "bible" for digital video engineers and programmers worldwide. This is by far the most informative analog and digital video reference available, includes the hottest new trends and cutting-edge developments in the field. Video Demystified, Fourth Edition is a "one stop" reference guide for the various digital video technologies. The fourth edition is completely updated with all new chapters on MPEG-4, H.264, SDTV/HDTV, ATSC/DVB, and Streaming Video (Video over DSL, Ethernet, etc.), as well as discussions of the latest standards throughout. The accompanying CD-ROM is updated to include a unique set of video test files in the newest formats. *This essential reference is the "bible" for digital video engineers and programmers worldwide *Contains all new chapters on MPEG-4, H.264, SDTV/HDTV, ATSC/DVB, and Streaming Video *Completely revised with all the latest and most up-to-date industry standards.

Video pedagogy

OpenAIRE

Länsitie, Janne; Stevenson, Blair; Männistö, Riku; Karjalainen, Tommi; Karjalainen, Asko

2016-01-01

The short film is an introduction to the concept of video pedagogy. The five categories of video pedagogy further elaborate how videos can be used as a part of instruction and learning process. Most pedagogical videos represent more than one category. A video itself doesn’t necessarily define the category – the ways in which the video is used as a part of pedagogical script are more defining factors. What five categories did you find? Did you agree with the categories, or are more...

International Summer School on Astronomy and Space Science in Chile, first experience.

Science.gov (United States)

Stepanova, M.; Arellano-Baeza, A. A.

I International Summer School on Astronomy and Space Science took place in the Elqui Valley Chile January 15-29 2005 Eighty 12-17 year old students from Chile Russia Venezuela and Bulgaria obtained a valuable experience to work together with outstanding scientists from Chile and Russia and with Russian cosmonaut Alexander Balandine They also had opportunity to visit the main astronomical observatories and to participate in workshops dedicated to the telescope and satellite design and remote sensing This activity was supported by numerous institutions in Chile including the Ministry of Education the European Southern Observatory Chilean Space Agency Chilean Air Force Latin American Association of Space Geophysics the principal Chilean universities and the First Lady Mrs Luisa Duran

Dutch children and parents' views on active and non-active video gaming.

Science.gov (United States)

De Vet, Emely; Simons, Monique; Wesselman, Maarten

2014-06-01

Active video games that require whole body movement to play the game may be an innovative health promotion tool to substitute sedentary pastime with more active time and may therefore contribute to children's health. To inform strategies aimed at reducing sedentary behavior by replacing non-active by active gaming, opinions about active and non-active video games are explored among 8- to 12-year-old children and their parents. Six qualitative, semi-structured focus groups were held with 8- to 12-year-old children (n = 46) and four with their parents (n = 19) at three different primary schools in The Netherlands. The focus groups with children discussed game preferences, gaming context and perceived game-related parenting. The focus groups with parents addressed considerations in purchasing video games, perceived positive and negative consequences of gaming, and game-related parenting. Both children and their parents were very positive about active video games and preferred active games over non-active games. Active video games were considered more social than non-active video games, and active games were played more often together with friends and family than non-active video games. Parenting practices did not differ for active and non-active video games, although some parents were less strict regarding active games. Two conditions for practical implementation were met: children enjoyed active video games, and parents were willing to buy active video games. Active video games were preferred to non-active video games, illustrating that using active video games is a promising health promotion tool to reduce sedentary pastime in youth.

A Multiliteracies Pedagogy: Exploring Semiotic Possibilities of a Disney Video in a Third Grade Diverse Classroom

Science.gov (United States)

Ajayi, Lasisi

2011-01-01

Disney videos are used across the US as important materials for teaching language arts and literacy in elementary schools. However, how pupils make meaning of the videos has not been sufficiently investigated in educational research. Twenty-five third-grade pupils were taught comprehension skills using "Sleeping Beauty." The students created their…

Video Games to Reading: Reaching out to Reluctant Readers

Science.gov (United States)

Jolley, Kristie

2008-01-01

Junior high school teacher Kristie Jolley believes students become more willing and motivated to practice reading strategies when they are "comfortable within their realm of literacy." Background knowledge of video games helps students succeed in understanding and enjoying game-based texts, which she incorporates into her classroom library as…

The experience to use space data as educational resources for secondary school students

Science.gov (United States)

Zaitzev, A.; Boyarchuk, K.

The space science data available free from Internet and include all kind of data: solar images from SOHO and GOES-12 satellites, WIND and ACE interplanetary data, ground-based and satellite aurora images and magnetic field variations in real time, ionospheric data etc. Beside that we have the direct transmissions of meteorological images from NOAA satellites in the APT and HRPT modes. All such sources of data can be used for educational programs for secondary school students. During last 10 years we conduct special classes in local school, where we use such space data. After introduction course each student might choose the topic which he can study in details. Each year the students prepare the original papers and participate in the special conferences, which one is in The Space Day, April 12. As curriculum materials we also use Russian language magazine "Novosti Kosmonavtiki", original data bases with space data available on CD-ROMs and publications in English. Such approach stimulate students to lean English also. After finish the classes K-12 students motivated well to continue education into space science and IZMIRAN will plan to support that students. In past two years we pay attention to use microsatellites for education. Last one is Russian-Australian KOLIBRI-2000 microsatellite, which was launched March 2002. KOLIBRI-2000 conduct simple measurements as magnetic field and particles. The experience in the usage of microsatellites data in classes are analyzed. The prospects and recommendations are discussed.

Schools and cities from sertão (1933-1945: space, address and architecture

Directory of Open Access Journals (Sweden)

Rubia-Mar Nunes Pinto

2012-11-01

Full Text Available The text goal is to approach, as discourse of modernity in Goiás state, the conformation of the architectural and urban materiality of schools of the capital, Goiânia, at the moment the city was planned, built and occupied. We used cartographic, textual, iconographic and oral sources to analyze the urban fabric of the capital city and to find space, address and architecture of the schools. The theoretical dialogue is established with historians of the brazilian education that deal with relations between the urban and schools and the authors engaged in demonstrate how the discourse constitutes meanings about the city. The findings point to the role of schools in the project of modernity that was under way in Goiás and to the relevance of school materiality in the making of the urban culture of Goiânia.

The Reflexive Adaptations of School Principals in a "Local" South African Space

Science.gov (United States)

Fataar, Aslam

2009-01-01

This paper is an analysis of the work of three principals in an impoverished black township in post-apartheid South Africa. Based on qualitative approaches, it discusses the principals' entry into the township, and their navigation of their schools' surrounding social dynamics. It combines the lenses of "space" and…

Personal Digital Video Stories

DEFF Research Database (Denmark)

Ørngreen, Rikke; Henningsen, Birgitte Sølbeck; Louw, Arnt Vestergaard

2016-01-01

The drop-out rate among students attending vocational training institutions is higher than for other forms of education at the same entry level (in Denmark, but also generally in Europe). A recent Danish reform has aided students, who enter the first part of the basic program directly from primar...... students are at school and in practical placements with companies. This may increase students’ social engagement and interest in the subject matter, together with greater awareness of professional identity, which could help decrease drop-out rates for vocational training.......The drop-out rate among students attending vocational training institutions is higher than for other forms of education at the same entry level (in Denmark, but also generally in Europe). A recent Danish reform has aided students, who enter the first part of the basic program directly from primary...... multimedia and video productions in Vocational Educational Training (VET). These video productions focused on the subjects of their future profession, and increased students’ motivation and experience of professional pride. Through a semistructured literature review, the paper then argues for a research...

Twenty-first Century Space Science in The Urban High School Setting: The NASA/John Dewey High School Educational Outreach Partnership

Science.gov (United States)

Fried, B.; Levy, M.; Reyes, C.; Austin, S.

2003-05-01

A unique and innovative partnership has recently developed between NASA and John Dewey High School, infusing Space Science into the curriculum. This partnership builds on an existing relationship with MUSPIN/NASA and their regional center at the City University of New York based at Medgar Evers College. As an outgrowth of the success and popularity of our Remote Sensing Research Program, sponsored by the New York State Committee for the Advancement of Technology Education (NYSCATE), and the National Science Foundation and stimulated by MUSPIN-based faculty development workshops, our science department has branched out in a new direction - the establishment of a Space Science Academy. John Dewey High School, located in Brooklyn, New York, is an innovative inner city public school with students of a diverse multi-ethnic population and a variety of economic backgrounds. Students were recruited from this broad spectrum, which covers the range of learning styles and academic achievement. This collaboration includes students of high, average, and below average academic levels, emphasizing participation of students with learning disabilities. In this classroom without walls, students apply the strategies and methodologies of problem-based learning in solving complicated tasks. The cooperative learning approach simulates the NASA method of problem solving, as students work in teams, share research and results. Students learn to recognize the complexity of certain tasks as they apply Earth Science, Mathematics, Physics, Technology and Engineering to design solutions. Their path very much follows the NASA model as they design and build various devices. Our Space Science curriculum presently consists of a one-year sequence of elective classes taken in conjunction with Regents-level science classes. This sequence consists of Remote Sensing, Planetology, Mission to Mars (NASA sponsored research program), and Microbiology, where future projects will be astronomy related. This

Agency Video, Audio and Imagery Library

Science.gov (United States)

Grubbs, Rodney

2015-01-01

The purpose of this presentation was to inform the ISS International Partners of the new NASA Agency Video, Audio and Imagery Library (AVAIL) website. AVAIL is a new resource for the public to search for and download NASA-related imagery, and is not intended to replace the current process by which the International Partners receive their Space Station imagery products.

The Effectiveness of Streaming Video on Medical Student Learning: A Case Study

OpenAIRE

Bridge, Patrick D.; Jackson, Matt; Robinson, Leah

2009-01-01

Information technology helps meet today’s medical students’ needs by providing multiple curriculum delivery methods. Video streaming is an e-learning technology that uses the Internet to deliver curriculum while giving the student control of the content’s delivery. There have been few studies conducted on the effectiveness of streaming video in medical schools. A 5-year retrospective study was conducted using three groups of students (n_1736) to determine if the availability of streaming vide...

AUTHOR’S DIGITAL VIDEO: CREATING AND USING FOR THE LEARNING

Directory of Open Access Journals (Sweden)

Igor V. Riatshentcev

2014-01-01

Full Text Available The article considers the functionality of software to construct the author’s video for its use in distance learning and its audiovisual implementation in the open educational space. 

CAMEX-4 NOAA WP-3D VIDEO V1

Data.gov (United States)

National Aeronautics and Space Administration — The CAMEX-4 NOAA WP-3D Video dataset was collected during the fourth field campaign in the CAMEX series (CAMEX-4), which ran from 16 August to 25 September, 2001 and...

Manifolds for pose tracking from monocular video

Science.gov (United States)

Basu, Saurav; Poulin, Joshua; Acton, Scott T.

2015-03-01

We formulate a simple human-pose tracking theory from monocular video based on the fundamental relationship between changes in pose and image motion vectors. We investigate the natural embedding of the low-dimensional body pose space into a high-dimensional space of body configurations that behaves locally in a linear manner. The embedded manifold facilitates the decomposition of the image motion vectors into basis motion vector fields of the tangent space to the manifold. This approach benefits from the style invariance of image motion flow vectors, and experiments to validate the fundamental theory show reasonable accuracy (within 4.9 deg of the ground truth).

Strategy For Implementing The UN "Zero-Gravity Instrument Project" To Promote Space Science Among School Children In Nigeria

Science.gov (United States)

Alabi, O.; Agbaje, G.; Akinyede, J.

2015-12-01

The United Nations "Zero Gravity Instrument Project" (ZGIP) is one of the activities coordinated under the Space Education Outreach Program (SEOP) of the African Regional Centre for Space Science and Technology Education in English (ARCSSTE-E) to popularize space science among pre-collegiate youths in Nigeria. The vision of ZGIP is to promote space education and research in microgravity. This paper will deliberate on the strategy used to implement the ZGIP to introduce school children to authentic scientific data and inquiry. The paper highlights how the students learned to collect scientific data in a laboratory environment, analyzed the data with specialized software, obtained results, interpreted and presented the results of their study in a standard format to the scientific community. About 100 school children, aged between 7 and 21 years, from ten public and private schools located in Osun State, Nigeria participated in the pilot phase of the ZGIP which commenced with a 1-day workshop in March 2014. During the inauguration workshop, the participants were introduced to the environment of outer space, with special emphasis on the concept of microgravity. They were also taught the basic principle of operation of the Clinostat, a Zero-Gravity Instrument donated to ARCSSTE-E by the United Nations Office for Outer Space Affairs (UN-OOSA), Vienna, under the Human Space Technology Initiative (UN-HSTI). At the end of the workshop, each school designed a project, and had a period of 1 week, on a planned time-table, to work in the laboratory of ARCSSTE-E where they utilized the clinostat to examine the germination of indigenous plant seeds in simulated microgravity conditions. The paper also documents the post-laboratory investigation activities, which included presentation of the results in a poster competition and an evaluation of the project. The enthusiasm displayed by the students, coupled with the favorable responses recorded during an oral interview conducted to

Space Bugz!

DEFF Research Database (Denmark)

Birke, Alexander; Schoenau-Fog, Henrik; Reng, Lars

2012-01-01

This paper presents Space Bugz! - a novel crowd game for large venues or cinemas that utilises the audience's smartphones as controllers for the game. This paper explains what crowd gaming is and describes how the approach used in Space Bugz! enables more advanced gameplay concepts and individual...... player control than current technologies allow. The gameplay of Space Bugz! is then explained along with the technical architecture of the game. After this, the iterative design process used to create the game is described together with future perspectives. The article concludes with links to a video...

Pattern of Internet Usage in Planning after-School Programs

Directory of Open Access Journals (Sweden)

T. Shahjafari

2015-05-01

Full Text Available The present research studies the pattern of the Internet usage by the third grade students of middle schools in the school year 2012-13 in Tehran. For this purpose, the needs of Iranian teenagers in virtual and cyber space have been identified and studied through an interdisciplinary approach. A researcher-made questionnaire and interviews with specialists and scholars in the fields of curriculum planning, educational technology, educational planning, information technology and communication were used based on an interdisciplinary approach. Finally, the needs of the students were divided and categorized into two factors of knowledge and skill, and individual and social characteristics on the basis of factor analysis method; the pattern of the Internet usage, including leisure factors and accessibility to information and sources, was designed and presented. Also, the results indicate that these factors have no direct effect on the network features and this effect occurs in relation to leisure factors through the location of the programs. Students’ interest in the Internet was mainly for the purposes of downloading videos and music and also playing online games and entertainment programs. This implies the necessity of attention on the part of planners to preparing and providing videos, games and educational, scientific and entertaining programs.

Video microblogging

DEFF Research Database (Denmark)

Bornoe, Nis; Barkhuus, Louise

2010-01-01

Microblogging is a recently popular phenomenon and with the increasing trend for video cameras to be built into mobile phones, a new type of microblogging has entered the arena of electronic communication: video microblogging. In this study we examine video microblogging, which is the broadcasting...... of short videos. A series of semi-structured interviews offers an understanding of why and how video microblogging is used and what the users post and broadcast....

Online Violence: The Case of “Potinss” as a Cyber-Bullying Space

Directory of Open Access Journals (Sweden)

Alev ASLAN

2017-06-01

Full Text Available In this study, the issue of “cyber-bullying” was discussed as a form of violence. Aiming to study how cyber bullying happens within peer groups by investigating the techniques, the agents and the density of the action; cyber bullying is studied among the peer groups through the application called “Potinss” which is known and used among the high school students. 100 high schools from 1034 high school listed in the application were selected through simple random sampling and 7817 topic titles and 36161 internal topic titles were reached. As a result of the content analysis applied by determining 7 bullying categories, it was seen that the students mostly used insulting, profane and threatening expressions (5071. The least common form of bullying is image and video sharing (30. It is observed that students easily say things that they cannot express in the physical environment in virtual space. Besides, there are comments that warn students not to apply cyberbullying. However, these warnings are thought to be insufficient to prevent cyberbullying. Another important finding is that school-related warnings of the school administration reduce the cyberbullying, if not completely prevent them

Designing a scalable video-on-demand server with data sharing

Science.gov (United States)

Lim, Hyeran; Du, David H. C.

2001-01-01

As current disk space and transfer speed increase, the bandwidth between a server and its disks has become critical for video-on-demand (VOD) services. Our VOD server consists of several hosts sharing data on disks through a ring-based network. Data sharing provided by the spatial-reuse ring network between servers and disks not only increases the utilization towards full bandwidth but also improves the availability of videos. Striping and replication methods are introduced in order to improve the efficiency of our VOD server system as well as the availability of videos. We consider tow kinds of resources of a VOD server system. Given a representative access profile, our intention is to propose an algorithm to find an initial condition, place videos on disks in the system successfully. If any copy of a video cannot be placed due to lack of resources, more servers/disks are added. When all videos are place on the disks by our algorithm, the final configuration is determined with indicator of how tolerable it is against the fluctuation in demand of videos. Considering it is a NP-hard problem, our algorithm generates the final configuration with O(M log M) at best, where M is the number of movies.

Security encryption for video-on-radio devices

Science.gov (United States)

Perrone, Antonio L.; Basti, Gianfranco

2002-03-01

In this paper we present an encryption module included in the Subsidiary Communication Channel (SCC) System we are developing for video-on-FM radio broadcasting. This module is aimed to encrypt by symmetric key the video image archive and real-time database of the broadcaster, and by asymmetric key the video broadcasting to final users. The module includes our proprietary Techniteia Encryption Library (TEL), that is already successfully running and securing several e-commerce portals in Europe. TEL is written in C-ANSI language for its easy exportation onto all main platforms and it is optimized for real-time applications. It is based on the blowfish encryption algorithm and it is characterized by a physically separated sub-module for the automatic generation/recovering of the variable sub-keys of the blowfish algorithm. In this way, different parts of the database are encrypted by different keys, both in space and in time, for granting an optimal security.

Online and unsupervised face recognition for continuous video stream

Science.gov (United States)

Huo, Hongwen; Feng, Jufu

2009-10-01

We present a novel online face recognition approach for video stream in this paper. Our method includes two stages: pre-training and online training. In the pre-training phase, our method observes interactions, collects batches of input data, and attempts to estimate their distributions (Box-Cox transformation is adopted here to normalize rough estimates). In the online training phase, our method incrementally improves classifiers' knowledge of the face space and updates it continuously with incremental eigenspace analysis. The performance achieved by our method shows its great potential in video stream processing.

A brief report on the relationship between self-control, video game addiction and academic achievement in normal and ADHD students

OpenAIRE

Haghbin, Maryam; Shaterian, Fatemeh; Hosseinzadeh, Davood; Griffiths, Mark D.

2013-01-01

Background and aims: Over the last two decades, research into video game addiction has grown increasingly. The present research aimed to examine the relationship between video game addiction, self-control, and academic achievement of normal and ADHD high school students. Based on previous research it was hypothesized that (i) there would be a relationship between video game addiction, self-control and academic achievement (ii) video game addiction, self-control and academic achievement would ...

Examination of Primary and Secondary School Teachers' Aspects towards Educational Use of Video Sharing Websites

Science.gov (United States)

Usta, Ertugrul; Atun, Handan

2017-01-01

Daily use of video has increased by televisions, but lately people have been using video sharing websites most frequently. This extended use of video sharing websites has emerged a new era for education; teachers and learners can use them to enhance learning in education. Hence, the purpose of this study is to examine primary and secondary school…

A study of school mathematics curriculum enacted by competent teachers in Singapore secondary schools

Science.gov (United States)

Kaur, Berinderjeet; Tay, Eng Guan; Toh, Tin Lam; Leong, Yew Hoong; Lee, Ngan Hoe

2018-03-01

A study of school mathematics curriculum enacted by competent teachers in Singapore secondary schools is a programmatic research project at the National Institute of Education (NIE) funded by the Ministry of Education (MOE) in Singapore through the Office of Education Research (OER) at NIE. The main goal of the project is to collect a set of data that would be used by two studies to research the enacted secondary school mathematics curriculum. The project aims to examine how competent experienced secondary school teachers implement the designated curriculum prescribed by the MOE in the 2013 revision of curriculum. It does this firstly by examining the video recordings of the classroom instruction and interactions between secondary school mathematics teachers and their students, as it is these interactions that fundamentally determine the nature of the actual mathematics learning and teaching that take place in the classroom. It also examines content through the instructional materials used—their preparation, use in classroom and as homework. The project comprises a video segment and a survey segment. Approximately 630 secondary mathematics teachers and 600 students are participating in the project. The data collection for the video segment of the project is guided by the renowned complementary accounts methodology while the survey segment adopts a self-report questionnaire approach. The findings of the project will serve several purposes. They will provide timely feedback to mathematics specialists in the MOE, inform pre-service and professional development programmes for mathematics teachers at the NIE and contribute towards articulation of "Mathematics pedagogy in Singapore secondary schools" that is evidence based.

Problem Space Matters: The Development of Creativity and Intelligence in Primary School Children

Science.gov (United States)

Welter, Marisete Maria; Jaarsveld, Saskia; Lachmann, Thomas

2017-01-01

Previous research showed that in primary school, children's intelligence develops continually, but creativity develops more irregularly. In this study, the development of intelligence, measured traditionally, i.e., operating within well-defined problem spaces (Standard Progressive Matrices) was compared with the development of intelligence…

Using of Video Modeling in Teaching a Simple Meal Preparation Skill for Pupils of Down Syndrome

Science.gov (United States)

AL-Salahat, Mohammad Mousa

2016-01-01

The current study aimed to identify the impact of video modeling upon teaching three pupils with Down syndrome the skill of preparing a simple meal (sandwich), where the training was conducted in a separate classroom in schools of normal students. The training consisted of (i) watching the video of an intellectually disabled pupil, who is…

Establishing and maintaining a satellite campus connected by synchronous video conferencing.

Science.gov (United States)

Fox, Brent I; McDonough, Sharon L; McConatha, Barry J; Marlowe, Karen F

2011-06-10

Pharmacy education has experienced substantial growth in the number of new schools and existing schools establishing satellite campuses. Several models have previously been used to connect primary and satellite campuses. We describe the Auburn University Harrison School of Pharmacy's (AUHSOP's) experiences using synchronous video conferencing between the Auburn University campus in Auburn and a satellite campus in Mobile, Alabama. We focus on the technology considerations related to planning, construction, implementation, and continued use of the various resources that support our program. Students' perceptions of their experiences related to technology also are described.

Differentiated Instructional Strategies on Space Education for Sustained Capacity Building of Underprivileged School Students

Science.gov (United States)

Ghosh, Sumit

2016-07-01

Although innovations in space education were introduced in many developing countries with good intentions, too many changes and challenges in the existing system have often penalized those who needed them the most. Consequently, the students and teachers in the underprivileged schools face isolation, neglect and coupled with inadequate pedagogic attention, poor infrastructure and insufficient resources, inadvertently suffer. Surprisingly, these deprived school students possess cognitive capabilities of comprehending nature. One of the most compelling situations in Indian school education is that the syllabus is often modified haphazardly without the necessary groundwork and infrastructure to implement it. Apparently, there has neither been teaching nor learning on applied knowledge. Despite the growth in communication and technology applications in space education, inequalities continue to exist in developing countries. In our present society many crucial services are provided by space and it becomes imperative that students have a comprehensive knowledge of space and space based technologies. To realize these objectives, we have adopted a comprehensive and holistic capacity building mechanism which incorporates differentiated instructional strategy on teaching space education in underprivileged schools. Because differentiation and scaffolding techniques yield similar instructional goals, we have blended together both the approaches to the point of being indistinguishable and this proved successful. Initiation was done through the setting up of an Astronomy Club in a backward area in Hyderabad and necessary infrastructure was provided by one of the authors. A state of the art audio-visual room with LCD Projector for ICT mode of presentations of various astronomy and space topics, having a seating capacity of 50 students is in place. A laptop, printer and Wi-Fi connection exists. In addition, visual charts on various celestial phenomena and objects, inspirational

Video game addiction and college performance among males: results from a 1 year longitudinal study.

Science.gov (United States)

Schmitt, Zachary L; Livingston, Michael G

2015-01-01

This study explored the pattern of video game usage and video game addiction among male college students and examined how video game addiction was related to expectations of college engagement, college grade point average (GPA), and on-campus drug and alcohol violations. Participants were 477 male, first year students at a liberal arts college. In the week before the start of classes, participants were given two surveys: one of expected college engagement, and the second of video game usage, including a measure of video game addiction. Results suggested that video game addiction is (a) negatively correlated with expected college engagement, (b) negatively correlated with college GPA, even when controlling for high school GPA, and (c) negatively correlated with drug and alcohol violations that occurred during the first year in college. Results are discussed in terms of implications for male students' engagement and success in college, and in terms of the construct validity of video game addiction.

Presence in Video-Mediated Interactions: Case Studies at CSIRO

Science.gov (United States)

Alem, Leila

Although telepresence and a sense of connectedness with others are frequently mentioned in media space studies, as far as we know, none of these studies report attempts at assessing this critical aspect of user experience. While some attempts have been made to measure presence in virtual reality or augmented reality, (a comprehensive review of existing measures is available in Baren and Ijsselsteijn [2004]), very little work has been reported in measuring presence in video-mediated collaboration systems. Traditional studies of video-mediated collaboration have mostly focused their evaluation on measures of task performance and user satisfaction. Videoconferencing systems can be seen as a type of media space; they rely on technologies of audio, video, and computing put together to create an environment extending the embodied mind. This chapter reports on a set of video-mediated collaboration studies conducted at CSIRO in which different aspects of presence are being investigated. The first study reports the sense of physical presence a specialist doctor experiences when engaged in a remote consultation of a patient using the virtual critical care unit (Alem et al., 2006). The Viccu system is an “always-on” system connecting two hospitals (Li et al., 2006). The presence measure focuses on the extent to which users of videoconferencing systems feel physically present in the remote location. The second study reports the sense of social presence users experience when playing a game of charades with remote partners using a video conference link (Kougianous et al., 2006). In this study the presence measure focuses on the extent to which users feel connected with their remote partners. The third study reports the sense of copresence users experience when building collaboratively a piece of Lego toy (Melo and Alem, 2007). The sense of copresence is the extent to which users feel present with their remote partner. In this final study the sense of copresence is

Evaluating a Safe Space Training for School Counselors and Trainees Using a Randomized Control Group Design

Science.gov (United States)

Byrd, Rebekah; Hays, Danica G.

2014-01-01

School counselors need to advocate and act as an ally for all students. Safe Space, a training designed to facilitate competency for working with and serving LGBTQ youth (i.e., LGBTQ competency), has received increased attention in the field of school counseling. However, limited empirical support exists for training interventions such as Safe…

Analysis of Video-Based Training Approaches and Professional Development

Science.gov (United States)

Leblanc, Serge

2018-01-01

The use of videos to analyze teaching practices or initial teacher training is aimed at helping build professional skills by establishing more explicit links between university education and internships and practical work in the schools. The purpose of this article is to familiarize the English-speaking community with French research via a study…

Academic Dishonesty and Video Game Play: Is New Media Use Changing Conceptions of Cheating?

Science.gov (United States)

Hamlen, Karla R.

2012-01-01

In this study, an online survey was utilized to investigate relationships among participants' willingness to cheat in academic or business settings and the strategies they tend to utilize in video game play. 113 participants completed the survey, and 86 students (23 middle school, 44 high school, 8 college undergraduate, and 11 graduate) yielded…

Professional Development for Rural and Remote Teachers Using Video Conferencing

Science.gov (United States)

Maher, Damian; Prescott, Anne

2017-01-01

Teachers in rural and remote schools face many challenges including those relating to distance, isolation and lack of professional development opportunities. This article examines a project where mathematics and science teachers were provided with professional development opportunities via video conferencing to help them use syllabus documents to…

Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia

OpenAIRE

Saquib, Nazmus; Saquib, Juliann; Wahid, AbdulWaris; Ahmed, Abdulrahman Akmal; Dhuhayr, Hamad Emad; Zaghloul, Mohamed Saddik; Ewid, Mohammed; Al-Mazrou, Abdulrahman

2017-01-01

Introduction: Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. Methods: The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in t...

Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia

OpenAIRE

Saquib, Nazmus; Saquib, Juliann; Wahid, AbdulWaris; Ahmed, Abdulrahman Akmal; Dhuhayr, Hamad Emad; Zaghloul, Mohamed Saddik; Ewid, Mohammed; Al-Mazrou, Abdulrahman

2017-01-01

Introduction Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. Methods The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in the...

Video-to-Video Dynamic Super-Resolution for Grayscale and Color Sequences

Directory of Open Access Journals (Sweden)

Elad Michael

2006-01-01

Full Text Available We address the dynamic super-resolution (SR problem of reconstructing a high-quality set of monochromatic or color super-resolved images from low-quality monochromatic, color, or mosaiced frames. Our approach includes a joint method for simultaneous SR, deblurring, and demosaicing, this way taking into account practical color measurements encountered in video sequences. For the case of translational motion and common space-invariant blur, the proposed method is based on a very fast and memory efficient approximation of the Kalman filter (KF. Experimental results on both simulated and real data are supplied, demonstrating the presented algorithms, and their strength.

Prevalence of Problematic Video Gaming among Ontario Adolescents

Science.gov (United States)

Turner, Nigel E.; Paglia-Boak, Angela; Ballon, Bruce; Cheung, Joyce T. W.; Adlaf, Edward M.; Henderson, Joanna; Chan, Vincy; Rehm, Jurgen; Hamilton, Hayley; Mann, Robert E.

2012-01-01

Video game playing has become a very popular activity among adolescents. Its impact on the mental health and well-being of players is just beginning to be explored. This paper reports on the prevalence of problematic gaming in a representative sample of 2,832 Ontario students in grades 7 to 12. The survey included questions about the school grade,…

Web-based teaching video packages on anatomical education.

Science.gov (United States)

Ozer, Mehmet Asim; Govsa, Figen; Bati, Ayse Hilal

2017-11-01

The aim of this study was to study the effect of web-based teaching video packages on medical students' satisfaction during gross anatomy education. The objective was to test the hypothesis that individual preference, which can be related to learning style, influences individual utilization of the video packages developed specifically for the undergraduate medical curriculum. Web-based teaching video packages consisting of Closed Circuit Audiovisual System and Distance Education of Anatomy were prepared. 54 informative application videos each lasting an average 12 min, competent with learning objectives have been prepared. 300 young adults of the medical school on applied anatomy education were evaluated in terms of their course content, exam performance and perceptions. A survey was conducted to determine the difference between the students who did not use teaching packages with those who used it during or after the lecture. A mean of 150 hits for each student per year was indicated. Academic performance of anatomy has been an increase of 10 points. Positive effects of the video packages on anatomy education have manifested on the survey conducted on students. The survey was compiled under twenty different items including effectiveness, providing education opportunity and affecting learning positively. Additionally, the difference was remarkable that the positive ideas of the second year students on learning were statistically significant from that of the third year students. Web-based video packages are helpful, definitive, easily accessible and affordable which enable students with different pace of learning to reach information simultaneously in equal conditions and increase the learning activity in crowded group lectures in cadaver labs. We conclude that personality/learning preferences of individual students influence their use of video packages in the medical curriculum.

A model for treating voice disorders in school-age children within a video gaming environment.

Science.gov (United States)

King, Suzanne N; Davis, Larry; Lehman, Jeffrey J; Ruddy, Bari Hoffman

2012-09-01

Clinicians use a variety of approaches to motivate children with hyperfunctional voice disorders to comply with voice therapy in a therapeutic session and improve the motivation of children to practice home-based exercises. Utilization of current entertainment technology in such approaches may improve participation and motivation in voice therapy. The purpose of this study is to test the feasibility of using an entertainment video game as a therapy device. Prospective cohort and case-control study. Three levels of game testing were conducted to an existing entertainment video game for use as a voice therapy protocol. The game was tested by two computer programmers and five normal participants. The third level of testing was a case study with a child diagnosed with a hyperfunctional voice disorder. Modifications to the game were made after each feasibility test. Errors with the video game performance were modified, including the addition of a time stamp directory and game controller. Resonance voice exercises were modified to accommodate the gaming environment and unique competitive situation, including speech rate, acoustic parameters, game speed, and point allocations. The development of video games for voice therapeutic purposes attempt to replicate the high levels of engagement and motivation attained with entertainment video games, stimulating a more productive means of learning while doing. This case study found that a purely entertainment video game can be implemented as a voice therapeutic protocol based on information obtained from the case study. Copyright © 2012 The Voice Foundation. All rights reserved.

A detailed view of Earth across space and time: our changing planet through a 32-year global Landsat and Sentinel-2 timelapse video

Science.gov (United States)

Herwig, C.

2017-12-01

The Landsat program offers an unparalleled record of our changing planet, with satellites that have been observing the Earth since 1972 to the present day. However, clouds, seasonal variation, and technical challenges around access to large volumes of data make it difficult for researchers and the public to understand global and regional scale changes across time through the planetary dataset. Earth Timelapse is a global, zoomable video that has helped revolutionize how users - millions of which have never been capable of utilizing Landsat data before - monitor and understand a changing planet. It is made from 33 cloud-free annual mosaics, one for each year from 1984 to 2016, which are made interactively explorable by Carnegie Mellon University CREATE Lab's Time Machine library, a technology for creating and viewing zoomable and pannable timelapses over space and time. Using Earth Engine, we combined over 5 million satellite images acquired over the past three decades by 5 different satellites. The majority of the images come from Landsat, a joint USGS/NASA Earth observation program that has observed the Earth since the 1970s. For 2015 and 2016, we combined Landsat 8 imagery with imagery from Sentinel-2A, part of the European Commission and European Space Agency's Copernicus Earth observation program. Along with the interactive desktop Timelapse application, we created a 200-video YouTube playlist highlighting areas across the world exhibiting change in the dataset.Earth Timelapse is an example that illustrates the power of Google Earth Engine's cloud-computing platform, which enables users such as scientists, researchers, and journalists to detect changes, map trends, and quantify differences on the Earth's surface using Google's computational infrastructure and the multi-petabyte Earth Engine data catalog. Earth Timelapse also highlights the value of data visualization to communicate with non-scientific audiences with varied technical and internet connectivity

Early substance consumption and problematic use of video games in adolescence

Directory of Open Access Journals (Sweden)

Adélaïde eCOËFFEC

2015-04-01

Full Text Available Substance use as well as use of video games is frequent among young people. The purpose of this research was to study the links between the use of video games and the consumption of various substances such as alcohol, tobacco or cannabis at adolescence. In order to do so, 1423 students from middle and high schools filled an auto-questionnaire that included questions on age, gender, year of study, use of video games and consumptions of alcohol (AUDIT-C, tobacco (HSI and cannabis (CAST. We found that 92.1% of teens use video games and 17.7% have a problematic use of video games (PUVG. Furthermore, results show that substance consumption seems frequent with 19.8% and 8.3% of participants having hazardous alcohol and cannabis consumptions respectively and 5.2% having a moderate to high tobacco dependence. Video gamers consumed significantly more alcohol and gamers with PUVG started their substance consumption (alcohol, tobacco and cannabis earlier. PUVG was found to be negatively correlated to age at first substance consumption, but positively correlated to the time spent playing video games. However, it was not correlated to risks of substance dependence (scores of AUDIT-C, HSI and CAST. Finally, our results are consistent with the literature, in regard to frequency of substance use and use of video games in adolescence. These data will allow for a better consideration of prevention strategies and future care in this particular field.

Innovative Educational Aerospace Research at the Northeast High School Space Research Center

Science.gov (United States)

Luyet, Audra; Matarazzo, Anthony; Folta, David

1997-01-01

Northeast High Magnet School of Philadelphia, Pennsylvania is a proud sponsor of the Space Research Center (SPARC). SPARC, a model program of the Medical, Engineering, and Aerospace Magnet school, provides talented students the capability to successfully exercise full simulations of NASA manned missions. These simulations included low-Earth Shuttle missions and Apollo lunar missions in the past, and will focus on a planetary mission to Mars this year. At the end of each scholastic year, a simulated mission, lasting between one and eight days, is performed involving 75 students as specialists in seven teams The groups are comprised of Flight Management, Spacecraft Communications (SatCom), Computer Networking, Spacecraft Design and Engineering, Electronics, Rocketry, Robotics, and Medical teams in either the mission operations center or onboard the spacecraft. Software development activities are also required in support of these simulations The objective of this paper is to present the accomplishments, technology innovations, interactions, and an overview of SPARC with an emphasis on how the program's educational activities parallel NASA mission support and how this education is preparing student for the space frontier.

Studying in-between spaces of the Danish primary and secondary school as spaces of and in transition in the late 20th century

DEFF Research Database (Denmark)

Rasmussen, Lisa Rosén

in-between spaces come into being through specific attention to their danger and potential, but also in relation to the perception and construction of classrooms and school layout. In this the alteration of the in-between spaces pulls together important dynamics in the formation of the Danish primary......-between spaces has taken shape in complex material-discursive intra-actions related to shifting concerns about the vulnerable and yet potential child as well as through available building materials, architectural designs and the number and organization of pupils’ bodies. By using this approach and working...

THE FORMATION OF THE HARMONIOUS PERSONAL SPACE OF THE STUDENT IN THE EDUCATIONAL PROCESS OF THE PRIMARY SCHOOL: THEORETICAL AND METHODOLOGICAL BASICS

Directory of Open Access Journals (Sweden)

Maltseva Olga Aleksandrovna

2013-01-01

Full Text Available The purpose of this article is the presentation of theoretical and methodical fundamentals of problems of formation the student’s of harmonious personal space in the educational process of the primary school. Personal space is being the subject of education, characterizes the specificity of human interaction with the reality, and forms system value-semantic directions of a person at a certain age stage. The period of primary school age is favorable for the formation of the harmonious personal space, which causes the creation of certain conditions in the educational process of school. The logic and content of the experimental work on the implementation of the conditions of formation of the harmonious personal space of the student in the educational process of the primary school are presented in the article. Results show positive dynamics in personal change of teachers, students and their parents, that allows to judge about the efficiency of the carried out research. The materials of the research are presented in the article, can be used in the practice of School Providing General Education.

Violent video game effects on children and adolescents. A review of the literature.

Science.gov (United States)

Gentile, D A; Stone, W

2005-12-01

Studies of violent video games on children and adolescents were reviewed to: 1) determine the multiple effects; 2) to offer critical observations about common strengths and weaknesses in the literature; 3) to provide a broader perspective to understand the research on the effects of video games. The review includes general theoretical and methodological considerations of media violence, and description of the general aggression model (GAM). The literature was evaluated in relation to the GAM. Published literature, including meta-analyses, are reviewed, as well as relevant unpublished material, such as conference papers and dissertations. Overall, the evidence supports hypotheses that violent video game play is related to aggressive affect, physiological arousal, aggressive cognitions, and aggressive behaviours. The effects of video game play on school performance are also evaluated, and the review concludes with a dimensional approach to video game effects. The dimensional approach evaluates video game effects in terms of amount, content, form, and mechanics, and appears to have many advantages for understanding and predicting the multiple types of effects demonstrated in the literature.

"We Don't Need No Education": Video Game Preferences, Video Game Motivations, and Aggressiveness among Adolescent Boys of Different Educational Ability Levels

Science.gov (United States)

Bijvank, Marije Nije; Konijn, Elly A.; Bushman, Brad J.

2012-01-01

This research focuses on low educational ability as a risk factor for aggression and violent game play. We propose that boys of lower educational ability are more attracted to violent video games than other boys are, and that they are also higher in trait aggressiveness and sensation seeking. Participants were Dutch boys in public schools (N =…

Collaborative and Competitive Video Games for Teaching Computing in Higher Education

Science.gov (United States)

Smith, Spencer; Chan, Samantha

2017-01-01

This study measures the success of using a collaborative and competitive video game, named Space Race, to teach computing to first year engineering students. Space Race is played by teams of four, each with their own tablet, collaborating to compete against the other teams in the class. The impact of the game on student learning was studied…

Effects of information dissemination using video of indigenous language on 11-12 years children's dental health.

Science.gov (United States)

Olubunmi, Bankole; Olushola, Ibiyemi

2013-11-01

Videos as a medium of health education are useful tools. This study evaluated the effectiveness of a dental health education video in the Yoruba language (spoken in southwestern Nigeria) targeted at children from the lower socioeconomic class. An interventional study was conducted among 120 children aged 11 and 12 years, randomly selected from three public primary schools in Ibadan, Nigeria. Participants were assigned into three study groups: group 1 watched the video, group 2 received verbal dental health education in the Yoruba language and group 3 were the control. Following this, each participant received a full mouth prophylaxis, and six weeks later, their oral hygiene was assessed using the Simplified Oral Hygiene Index of Greene and Vermillion. A mean debris score of (1.11), (1.04) and (1.57) was recorded for the video, verbal and control groups respectively (p<0.001). The mean calculus index score was lowest among the verbal group (0.56), followed by the video group (0.75) and highest among the control (1.16) (p<0.001). However, multivariate analysis, controlling for child's age and fathers education, revealed that oral hygiene of the participants in the video group was significantly better by 28.6% compared to the control group while in the verbal education group there was an improvement of 23.4 % in contrast to the control. This study demonstrated that a culturally appropriate video in an indigenous language can significantly improve oral hygiene among school children from the lower socioeconomic group in Nigeria.

The Ocean 180 Video Challenge: An Innovative Outreach Strategy for Connecting Scientists to Classrooms

Science.gov (United States)

Tankersley, R. A.; Windsor, J. G.; Briceno, K. V.

2016-02-01

Recognizing the need for scientists to engage and communicate more effectively with the public, the Florida Center for Ocean Sciences Education Excellence (COSEE Florida) created an opportunity to connect the two through film. The Ocean 180 Video Challenge taps into the competitive spirit of scientists and encourages them to submit short, 3-minute video abstracts summarizing the important findings of recent peer-reviewed papers and highlighting the relevance, meaning, and implications of the research to persons outside their discipline. Although the videos are initially screened and evaluated by a team of science and communication experts, the winners (from a field of ten finalists) are selected by middle school students in classrooms all over the world. Since its inception in 2013, Ocean 180 has grown in popularity, with more than 38,000 middle school students from 1,637 classrooms in 21 countries participating as judges. Results of a Draw-a-Scientist Test administered during the 2015 competition indicate Ocean 180 is an successful intervention that has a positive impact on students' views of science, including their perception and attitudes toward scientists and science careers. Thus, our presentation will discuss how video competitions can serve as effective outreach strategies for encouraging scientists to share new discoveries and their enthusiasm for science with K-12 students. We will also highlight the outcomes and lessons-learned from the 2014 and 2015 competitions, including (1) strategies for recruiting teachers and students to participate as judges, (2) approaches used by educators to align the content of videos with state and national science standards, and (3) ways contest videos can be integrated into science training and professional development programs, including workshops focusing on effective video storytelling techniques.

Video-based problems in introductory mechanics physics courses

International Nuclear Information System (INIS)

Gröber, Sebastian; Klein, Pascal; Kuhn, Jochen

2014-01-01

Introductory mechanics physics courses at the transition from school to university are a challenge for students. They are faced with an abrupt and necessary increase of theoretical content and requirements on their conceptual understanding of phyiscs. In order to support this transition we replaced part of the mandatory weekly theory-based paper-and-pencil problems with video analysis problems of equal content and level of difficulty. Video-based problems (VBP) are a new problem format for teaching physics from a linked sequence of theoretical and video-based experimental tasks. Experimental tasks are related to the well-known concept of video motion analysis. This introduction of an experimental part in recitations allows the establishment of theory–experiment interplay as well as connections between physical content and context fields such as nature, technique, everyday life and applied physics by conducting model-and context-related experiments. Furthermore, laws and formulas as predominantly representative forms are extended by the use of diagrams and vectors. In this paper we give general reasons for this approach, describe the structure and added values of VBP, and show that they cover a relevant part of mechanics courses at university. Emphasis is put on theory–experiment interplay as a structural added value of VBP to promote students' construction of knowledge and conceptual understanding. (paper)

Impact of Mini-drone based Video Surveillance on Invasion of Privacy

OpenAIRE

Korshunov, Pavel; Bonetto, Margherita; Ebrahimi, Touradj; Ramponi, Giovanni

2015-01-01

An increase in adoption of video surveillance, affecting many aspects of daily lives, raises public concern about an intrusion into individual privacy. New sensing and surveillance technologies, such as mini-drones, threaten to eradicate boundaries of private space even more. Therefore, it is important to study the effect of mini-drones on privacy intrusion and to understand how existing protection privacy filters perform on a video captured by a mini-drone. To this end, we have built a publi...

Multimedia Mapping using Continuous State Space Models

DEFF Research Database (Denmark)

Lehn-Schiøler, Tue

2004-01-01

In this paper a system that transforms speech waveforms to animated faces are proposed. The system relies on continuous state space models to perform the mapping, this makes it possible to ensure video with no sudden jumps and allows continuous control of the parameters in 'face space'. Simulations...... are performed on recordings of 3-5 sec. video sequences with sentences from the Timit database. The model is able to construct an image sequence from an unknown noisy speech sequence fairly well even though the number of training examples are limited....

Video game addiction, ADHD symptomatology, and video game reinforcement.

Science.gov (United States)

Mathews, Christine L; Morrell, Holly E R; Molle, Jon E

2018-06-06

Up to 23% of people who play video games report symptoms of addiction. Individuals with attention deficit hyperactivity disorder (ADHD) may be at increased risk for video game addiction, especially when playing games with more reinforcing properties. The current study tested whether level of video game reinforcement (type of game) places individuals with greater ADHD symptom severity at higher risk for developing video game addiction. Adult video game players (N = 2,801; Mean age = 22.43, SD = 4.70; 93.30% male; 82.80% Caucasian) completed an online survey. Hierarchical multiple linear regression analyses were used to test type of game, ADHD symptom severity, and the interaction between type of game and ADHD symptomatology as predictors of video game addiction severity, after controlling for age, gender, and weekly time spent playing video games. ADHD symptom severity was positively associated with increased addiction severity (b = .73 and .68, ps .05. The relationship between ADHD symptom severity and addiction severity did not depend on the type of video game played or preferred most, ps > .05. Gamers who have greater ADHD symptom severity may be at greater risk for developing symptoms of video game addiction and its negative consequences, regardless of type of video game played or preferred most. Individuals who report ADHD symptomatology and also identify as gamers may benefit from psychoeducation about the potential risk for problematic play.

Drawing Millions of Spaces

DEFF Research Database (Denmark)

Brabrand, Helle

2017-01-01

a flat surface in actual space for projection of line-, photo-, and video effects, and then, out of this surface-context, provoke a participator to move and extract different atmospheric perspectives. Presently, the work is presented as a video. In The Art-Architecture Complex Hal Foster criticizes what...... of process - movement - time. Asking very basic architectural questions, his focus is on elevation, on what happens to your body when the elevation is shifting: how do you cut into space, gather the land in a volume, and hold that volume? Serra’s concern is moving body-space experiences: ‘when you face...... a concave shape, the whole breadth of the curvilinear volume opens up in front of you; but once you walk around the edge, it changes to an opaque convexity that reveals itself only through walking – you can’t see the openness of the field or how the volume sucks into it. Just turning the corner opens up...

Vodcasting space weather: The Space Weather FX vodcast series

Science.gov (United States)

Collins Petersen, C.; Erickson, P. J.

2008-06-01

The topic of space weather is the subject of a series of nine vodcasts (video podcasts) being created by MIT Haystack Observatory (Westford, Massachusetts, USA) and Loch Ness Productions (Groton, Massachusetts, USA). This paper describes the project, its science and outreach goals, and introduces the principal participants.

Creation of a Collaborative Disaster Preparedness Video for Daycare Providers: Use of the Delphi Model for the Creation of a Comprehensive Disaster Preparedness Video for Daycare Providers.

Science.gov (United States)

Mar, Pamela; Spears, Robert; Reeb, Jeffrey; Thompson, Sarah B; Myers, Paul; Burke, Rita V

2018-02-22

Eight million American children under the age of 5 attend daycare and more than another 50 million American children are in school or daycare settings. Emergency planning requirements for daycare licensing vary by state. Expert opinions were used to create a disaster preparedness video designed for daycare providers to cover a broad spectrum of scenarios. Various stakeholders (17) devised the outline for an educational pre-disaster video for child daycare providers using the Delphi technique. Fleiss κ values were obtained for consensus data. A 20-minute video was created, addressing the physical, psychological, and legal needs of children during and after a disaster. Viewers completed an anonymous survey to evaluate topic comprehension. A consensus was attempted on all topics, ranging from elements for inclusion to presentation format. The Fleiss κ value of 0.07 was obtained. Fifty-seven of the total 168 video viewers completed the 10-question survey, with comprehension scores ranging from 72% to 100%. Evaluation of caregivers that viewed our video supports understanding of video contents. Ultimately, the technique used to create and disseminate the resources may serve as a template for others providing pre-disaster planning education. (Disaster Med Public Health Preparedness. 2018;page 1 of 5).

Engineering task plan for Tanks 241-AN-103, 104, 105 color video camera systems

International Nuclear Information System (INIS)

Kohlman, E.H.

1994-01-01

This Engineering Task Plan (ETP) describes the design, fabrication, assembly, and installation of the video camera systems into the vapor space within tanks 241-AN-103, 104, and 105. The one camera remotely operated color video systems will be used to observe and record the activities within the vapor space. Activities may include but are not limited to core sampling, auger activities, crust layer examination, monitoring of equipment installation/removal, and any other activities. The objective of this task is to provide a single camera system in each of the tanks for the Flammable Gas Tank Safety Program

Gamers as Designers: A Framework for Investigating Design in Gaming Affinity Spaces

Science.gov (United States)

Duncan, Sean C.

2010-01-01

This article addresses recent approaches to uncovering and theorizing the design activities that occur in online gaming affinity spaces. Examples are presented of productive d/Discourse present within online forums around three video game series, video games, or game platforms, and key design practices engaged upon by gamers in these spaces. It is…

Technology survey on video face tracking

Science.gov (United States)

Zhang, Tong; Gomes, Herman Martins

2014-03-01

With the pervasiveness of monitoring cameras installed in public areas, schools, hospitals, work places and homes, video analytics technologies for interpreting these video contents are becoming increasingly relevant to people's lives. Among such technologies, human face detection and tracking (and face identification in many cases) are particularly useful in various application scenarios. While plenty of research has been conducted on face tracking and many promising approaches have been proposed, there are still significant challenges in recognizing and tracking people in videos with uncontrolled capturing conditions, largely due to pose and illumination variations, as well as occlusions and cluttered background. It is especially complex to track and identify multiple people simultaneously in real time due to the large amount of computation involved. In this paper, we present a survey on literature and software that are published or developed during recent years on the face tracking topic. The survey covers the following topics: 1) mainstream and state-of-the-art face tracking methods, including features used to model the targets and metrics used for tracking; 2) face identification and face clustering from face sequences; and 3) software packages or demonstrations that are available for algorithm development or trial. A number of publically available databases for face tracking are also introduced.

Living in Space. Book II. Levels D, E, F for Grades 4, 5, 6. Operation Liftoff: Elementary School Space Program. A Resource Guide with Activities for Elementary School Teachers.

Science.gov (United States)

Andrews, Sheila Briskin; Kirschenbaum, Audrey

This guide contains teacher background information and activities for students which deal with space travel and is designed to encourage elementary school students to take a greater interest in mathematics and science. The activities in this guide are to be used with grades 4 to 6 and cover the topics of food, clothing, health, housing,…

Living in Space. Book 1. Levels A, B, C for Grades 1, 2, 3. Operation Liftoff: Elementary School Space Program. A Resource Guide with Activities for Elementary School Teachers.

Science.gov (United States)

Andrews, Sheila Briskin; Kirschenbaum, Audrey

This guide contains teacher background information and activities for students that relate to space travel and is designed to encourage elementary school students to take a greater interest in mathematics and science. The activities in this guide are to be used with grades 1 to 3 and cover the topics of food, clothing, health, housing,…

Enhancement system of nighttime infrared video image and visible video image

Science.gov (United States)

Wang, Yue; Piao, Yan

2016-11-01

Visibility of Nighttime video image has a great significance for military and medicine areas, but nighttime video image has so poor quality that we can't recognize the target and background. Thus we enhance the nighttime video image by fuse infrared video image and visible video image. According to the characteristics of infrared and visible images, we proposed improved sift algorithm andαβ weighted algorithm to fuse heterologous nighttime images. We would deduced a transfer matrix from improved sift algorithm. The transfer matrix would rapid register heterologous nighttime images. And theαβ weighted algorithm can be applied in any scene. In the video image fusion system, we used the transfer matrix to register every frame and then used αβ weighted method to fuse every frame, which reached the time requirement soft video. The fused video image not only retains the clear target information of infrared video image, but also retains the detail and color information of visible video image and the fused video image can fluency play.

VIDEO GAMES ARE AN INTERESTING OBJECT TO THE COGNITION STUDIES

Directory of Open Access Journals (Sweden)

Cleci Maraschin

2013-12-01

Full Text Available Video games create a virtual space that can be inhabited in various ways by the players. Despite the controversies in which they are constantly included, electronic games bear witness to the modus operandi in our contemporary cognition permeated by technical objects. By focusing the know-how instead of a declarative experience the games open questions in the field of new literacies and problematize the use of technology in teaching practices. From the development of a locative game at the Botanical Garden of Porto Alegre, this article discussed some, methodological, political and theoretical implications arising from the research with video games in the field of cognitive studies. We discuss, finally, three theoretical / methodological implications the practice with video games forces us to think: research the video game through the process of its operation, questioning cognitive policies that organize our everyday and map the complex web of practices that supports the use of technical objects.

SnapVideo: Personalized Video Generation for a Sightseeing Trip.

Science.gov (United States)

Zhang, Luming; Jing, Peiguang; Su, Yuting; Zhang, Chao; Shaoz, Ling

2017-11-01

Leisure tourism is an indispensable activity in urban people's life. Due to the popularity of intelligent mobile devices, a large number of photos and videos are recorded during a trip. Therefore, the ability to vividly and interestingly display these media data is a useful technique. In this paper, we propose SnapVideo, a new method that intelligently converts a personal album describing of a trip into a comprehensive, aesthetically pleasing, and coherent video clip. The proposed framework contains three main components. The scenic spot identification model first personalizes the video clips based on multiple prespecified audience classes. We then search for some auxiliary related videos from YouTube 1 according to the selected photos. To comprehensively describe a scenery, the view generation module clusters the crawled video frames into a number of views. Finally, a probabilistic model is developed to fit the frames from multiple views into an aesthetically pleasing and coherent video clip, which optimally captures the semantics of a sightseeing trip. Extensive user studies demonstrated the competitiveness of our method from an aesthetic point of view. Moreover, quantitative analysis reflects that semantically important spots are well preserved in the final video clip. 1 https://www.youtube.com/.

Educational Colonoscopy Video Enhances Bowel Preparation Quality and Comprehension in an Inner City Population.

Science.gov (United States)

Pillai, Ajish; Menon, Radha; Oustecky, David; Ahmad, Asyia

2017-07-24

Quality of bowel preparation and patient knowledge remains a major barrier for completing colorectal cancer screening. Few studies have tested unique ways to impact patient understanding centering on interactive computer programs, pictures, and brochures. Two studies explored instructional videos but focused on patient compliance and anxiety as endpoints. Furthermore, excessive video length and content may limit their impact on a broad patient population. No study so far has studied a video's impact on preparation quality and patient understanding of the colonoscopy procedure. We conducted a single blinded prospective study of inner city patients presenting for a first time screening colonoscopy. During their initial visit patients were randomized to watch an instructional colonoscopy video or a video discussing gastroesophageal reflux disease (GERD). All patients watched a 6 minutes long video with the same spokesperson, completed a demographic questionnaire (Supplemental Digital Content 1, http://links.lww.com/JCG/A352) and were enrolled only if screened within 30 days of their visit. On the day of the colonoscopy, patients completed a 14 question quiz of their knowledge. Blinded endoscopist graded patient preparations based on the Ottawa scale. All authors had access to the study data and reviewed and approved the final manuscript. Among the 104 subjects enrolled in the study, 56 were in the colonoscopy video group, 48 were in GERD video group, and 12 were excluded. Overall, 48% were male and 52% female; 90% of patients had less than a high school education, 76% were African American, and 67% used a 4 L split-dose preparation. There were no differences between either video group with regard to any of the above categories. Comparisons between the 2 groups revealed that the colonoscopy video group had significantly better Ottawa bowel preparation score (4.77 vs. 6.85; P=0.01) than the GERD video group. The colonoscopy video group also had less-inadequate repeat

INFORMATION SPACE– EDUCATIONAL SPACE

Directory of Open Access Journals (Sweden)

Monica LIA

2015-11-01

Full Text Available This paper has set the objective of researching how education is influenced by the information society. The first step was to define more precisely the information space. The second step was to identify how information space intersects with the family space and institutional space educational levels represented by pre-school / school and pre-university (kindergarten, at elementary / middle school / high school. Interrelationship between the above mentioned areas was another objective of the research. All these elements have been investigated through the original intention to identify how the information space can become an educational tool to support the family space, education and institutional space. Also, the aim of this research is to offer some solutions in this regard. Often the educational efforts appear to be blocked by the existence of this space. But this paper demonstrates that Informational space can be an enemy of the educational system or can support systems if we knew the internal structure and mechanisms. We can make the Informational Space to work in order to accomplish the educational scope.

GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) IPHEX V1

Data.gov (United States)

National Aeronautics and Space Administration — The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) IPHEx dataset was collected during the GPM Ground Validation Integrated Precipitation and...

Communication Strategies Used by High School English Language Learners in Multilingual Classrooms

Science.gov (United States)

Spromberg, Sarah

2011-01-01

In this study, twenty-five high school English language learners were observed in their classrooms in a New York City public school while they worked in small groups. All observations were video recorded or done by the researcher while in the classrooms. The videos were then transcribed. Communication strategies that the participants used were…

An Exploratory Study on the Reasons and Preferences of Six Malaysian Students on the Video Games Played

Science.gov (United States)

Leng, Eow Yee; Baki, Roselan

2008-01-01

The purpose of this study was to explore the reasons why six Malaysian students from upper secondary school are playing video games, types of games and the features preferred. A qualitative method was being used in the study. Purposive sampling was conducted in selecting the students. The findings indicated that students played video games for a…

Augmented video viewing: transforming video consumption into an active experience

OpenAIRE

WIJNANTS, Maarten; Leën, Jeroen; QUAX, Peter; LAMOTTE, Wim

2014-01-01

Traditional video productions fail to cater to the interactivity standards that the current generation of digitally native customers have become accustomed to. This paper therefore advertises the \\activation" of the video consumption process. In particular, it proposes to enhance HTML5 video playback with interactive features in order to transform video viewing into a dynamic pastime. The objective is to enable the authoring of more captivating and rewarding video experiences for end-users. T...

Presenting Science in a Video-Delivered, Web-based Format: Comparing Learning Settings To Get the Most Out of Teaching.

Science.gov (United States)

Urven, Lance E.; Yin, L. Roger; Eshelman, Bruce D.; Bak, John D.

2000-01-01

Describes a high school course entitled "Science Technology in Society". High school students use live video presentations and world wide web courseware. Concludes that distance learning students performed as well as traditionally instructed students. (SAH)

The Association of Schools of Journalism and mass communication journalist-in-space project

Science.gov (United States)

1986-01-01

During the summer of 1985, NASA asked the Association of Schools of Journalism and Mass Communication (ASJMC) to select a U. S. journalist who could ride aboard the space shuttle and report the experience to the American public. Eligibility critieria and selection procedures are discussed. The forty semifinalists are listed.

Early substance consumption and problematic use of video games in adolescence

Science.gov (United States)

Coëffec, Adélaïde; Romo, Lucia; Cheze, Nathalie; Riazuelo, Hélène; Plantey, Sophie; Kotbagi, Gayatri; Kern, Laurence

2015-01-01

Substance use as well as use of video games is frequent among young people. The purpose of this research was to study the links between the use of video games and the consumption of various substances such as alcohol, tobacco or cannabis at adolescence. In order to do so, 1423 students from middle and high schools filled an auto-questionnaire that included questions on age, gender, year of study, use of video games and consumptions of alcohol (Alcohol Use Disorders Identification Test Short version, AUDIT-C), tobacco (Heaviness of Smoking Index, HSI), and cannabis (Cannabis Abuse Screening Test, CAST). We found that 92.1% of teens use video games and 17.7% have a problematic use of video games (PUVG). Furthermore, results show that substance consumption seems frequent with 19.8 and 8.3% of participants having hazardous alcohol and cannabis consumptions respectively and 5.2% having a moderate to high tobacco dependence. Video gamers consumed significantly more alcohol and gamers with PUVG started their substance consumption (alcohol, tobacco, and cannabis) earlier. PUVG was found to be negatively correlated to age at first substance consumption, but positively correlated to the time spent playing video games. However, it was not correlated to risks of substance dependence (scores of AUDIT-C, HSI, and CAST). Finally, our results are consistent with the literature, in regard to frequency of substance use and use of video games in adolescence. These data will allow for a better consideration of prevention strategies and future care in this particular field. PMID:25972826

Early substance consumption and problematic use of video games in adolescence.

Science.gov (United States)

Coëffec, Adélaïde; Romo, Lucia; Cheze, Nathalie; Riazuelo, Hélène; Plantey, Sophie; Kotbagi, Gayatri; Kern, Laurence

2015-01-01

Substance use as well as use of video games is frequent among young people. The purpose of this research was to study the links between the use of video games and the consumption of various substances such as alcohol, tobacco or cannabis at adolescence. In order to do so, 1423 students from middle and high schools filled an auto-questionnaire that included questions on age, gender, year of study, use of video games and consumptions of alcohol (Alcohol Use Disorders Identification Test Short version, AUDIT-C), tobacco (Heaviness of Smoking Index, HSI), and cannabis (Cannabis Abuse Screening Test, CAST). We found that 92.1% of teens use video games and 17.7% have a problematic use of video games (PUVG). Furthermore, results show that substance consumption seems frequent with 19.8 and 8.3% of participants having hazardous alcohol and cannabis consumptions respectively and 5.2% having a moderate to high tobacco dependence. Video gamers consumed significantly more alcohol and gamers with PUVG started their substance consumption (alcohol, tobacco, and cannabis) earlier. PUVG was found to be negatively correlated to age at first substance consumption, but positively correlated to the time spent playing video games. However, it was not correlated to risks of substance dependence (scores of AUDIT-C, HSI, and CAST). Finally, our results are consistent with the literature, in regard to frequency of substance use and use of video games in adolescence. These data will allow for a better consideration of prevention strategies and future care in this particular field.

Towards Video Quality Metrics Based on Colour Fractal Geometry

Directory of Open Access Journals (Sweden)

Richard Noël

2010-01-01

Full Text Available Vision is a complex process that integrates multiple aspects of an image: spatial frequencies, topology and colour. Unfortunately, so far, all these elements were independently took into consideration for the development of image and video quality metrics, therefore we propose an approach that blends together all of them. Our approach allows for the analysis of the complexity of colour images in the RGB colour space, based on the probabilistic algorithm for calculating the fractal dimension and lacunarity. Given that all the existing fractal approaches are defined only for gray-scale images, we extend them to the colour domain. We show how these two colour fractal features capture the multiple aspects that characterize the degradation of the video signal, based on the hypothesis that the quality degradation perceived by the user is directly proportional to the modification of the fractal complexity. We claim that the two colour fractal measures can objectively assess the quality of the video signal and they can be used as metrics for the user-perceived video quality degradation and we validated them through experimental results obtained for an MPEG-4 video streaming application; finally, the results are compared against the ones given by unanimously-accepted metrics and subjective tests.

ATR/OTR-SY Tank Camera Purge System and in Tank Color Video Imaging System

International Nuclear Information System (INIS)

Werry, S.M.

1995-01-01

This procedure will document the satisfactory operation of the 101-SY tank Camera Purge System (CPS) and 101-SY in tank Color Camera Video Imaging System (CCVIS). Included in the CPRS is the nitrogen purging system safety interlock which shuts down all the color video imaging system electronics within the 101-SY tank vapor space during loss of nitrogen purge pressure

Learning Electron Transport Chain Process in Photosynthesis Using Video and Serious Game

Science.gov (United States)

Espinoza Morales, Cecilia

This research investigates students' learning about the electron transport chain (ETC) process in photosynthesis by watching a video followed by playing a serious board game-Electron Chute- that models the ETC process. To accomplish this goal, several learning outcomes regarding the misconceptions students' hold about photosynthesis and the ETC process in photosynthesis were defined. Middle school students need opportunities to develop cohesive models that explain the mechanistic processes of biological systems to support their learning. A six-week curriculum on photosynthesis included a one day learning activity using an ETC video and the Electron Chute game to model the ETC process. The ETC model explained how sunlight energy was converted to chemical energy (ATP) at the molecular level involving a flow of electrons. The learning outcomes and the experiences were developed based on the Indiana Academic Standards for biology and the Next Generation Science Standards (NGSS) for the life sciences. Participants were 120 eighth grade science students from an urban public school. The participants were organized into six classes based on their level of academic readiness, regular and challenge, by the school corporation. Four classes were identified as regular classes and two of them as challenge classes. Students in challenge classes had the opportunity to be challenged with more difficult content knowledge and required higher level thinking skills. The regular classes were the mainstream at school. A quasi-experimental design known as non-equivalent group design (NEGD) was used in this study. This experimental design consisted of a pretest-posttest experiment in two similar groups to begin with-the video only and video+game treatments. Intact classes were distributed into the treatments. The video only watched the ETC video and the video+game treatment watched the ETC video and played the Electron Chute game. The instrument (knowledge test) consisted of a multiple

Multi-Task Video Captioning with Video and Entailment Generation

OpenAIRE

Pasunuru, Ramakanth; Bansal, Mohit

2017-01-01

Video captioning, the task of describing the content of a video, has seen some promising improvements in recent years with sequence-to-sequence models, but accurately learning the temporal and logical dynamics involved in the task still remains a challenge, especially given the lack of sufficient annotated data. We improve video captioning by sharing knowledge with two related directed-generation tasks: a temporally-directed unsupervised video prediction task to learn richer context-aware vid...

Video Quality Prediction Models Based on Video Content Dynamics for H.264 Video over UMTS Networks

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Asiya Khan

2010-01-01

Full Text Available The aim of this paper is to present video quality prediction models for objective non-intrusive, prediction of H.264 encoded video for all content types combining parameters both in the physical and application layer over Universal Mobile Telecommunication Systems (UMTS networks. In order to characterize the Quality of Service (QoS level, a learning model based on Adaptive Neural Fuzzy Inference System (ANFIS and a second model based on non-linear regression analysis is proposed to predict the video quality in terms of the Mean Opinion Score (MOS. The objective of the paper is two-fold. First, to find the impact of QoS parameters on end-to-end video quality for H.264 encoded video. Second, to develop learning models based on ANFIS and non-linear regression analysis to predict video quality over UMTS networks by considering the impact of radio link loss models. The loss models considered are 2-state Markov models. Both the models are trained with a combination of physical and application layer parameters and validated with unseen dataset. Preliminary results show that good prediction accuracy was obtained from both the models. The work should help in the development of a reference-free video prediction model and QoS control methods for video over UMTS networks.

Streaming Video--The Wave of the Video Future!

Science.gov (United States)

Brown, Laura

2004-01-01

Videos and DVDs give the teachers more flexibility than slide projectors, filmstrips, and 16mm films but teachers and students are excited about a new technology called streaming. Streaming allows the educators to view videos on demand via the Internet, which works through the transfer of digital media like video, and voice data that is received…

A video authentication technique

International Nuclear Information System (INIS)

Johnson, C.S.

1987-01-01

Unattended video surveillance systems are particularly vulnerable to the substitution of false video images into the cable that connects the camera to the video recorder. New technology has made it practical to insert a solid state video memory into the video cable, freeze a video image from the camera, and hold this image as long as desired. Various techniques, such as line supervision and sync detection, have been used to detect video cable tampering. The video authentication technique described in this paper uses the actual video image from the camera as the basis for detecting any image substitution made during the transmission of the video image to the recorder. The technique, designed for unattended video systems, can be used for any video transmission system where a two-way digital data link can be established. The technique uses similar microprocessor circuitry at the video camera and at the video recorder to select sample points in the video image for comparison. The gray scale value of these points is compared at the recorder controller and if the values agree within limits, the image is authenticated. If a significantly different image was substituted, the comparison would fail at a number of points and the video image would not be authenticated. The video authentication system can run as a stand-alone system or at the request of another system

Advanced digital video surveillance for safeguard and physical protection

International Nuclear Information System (INIS)

Kumar, R.

2002-01-01

Full text: Video surveillance is a very crucial component in safeguard and physical protection. Digital technology has revolutionized the surveillance scenario and brought in various new capabilities like better image quality, faster search and retrieval of video images, less storage space for recording, efficient transmission and storage of video, better protection of recorded video images, and easy remote accesses to live and recorded video etc. The basic safeguard requirement for verifiably uninterrupted surveillance has remained largely unchanged since its inception. However, changes to the inspection paradigm to admit automated review and remote monitoring have dramatically increased the demands on safeguard surveillance system. Today's safeguard systems can incorporate intelligent motion detection with very low rate of false alarm and less archiving volume, embedded image processing capability for object behavior and event based indexing, object recognition, efficient querying and report generation etc. It also demands cryptographically authenticating, encrypted, and highly compressed video data for efficient, secure, tamper indicating and transmission. In physical protection, intelligent on robust video motion detection, real time moving object detection and tracking from stationary and moving camera platform, multi-camera cooperative tracking, activity detection and recognition, human motion analysis etc. is going to play a key rote in perimeter security. Incorporation of front and video imagery exploitation tools like automatic number plate recognition, vehicle identification and classification, vehicle undercarriage inspection, face recognition, iris recognition and other biometric tools, gesture recognition etc. makes personnel and vehicle access control robust and foolproof. Innovative digital image enhancement techniques coupled with novel sensor design makes low cost, omni-directional vision capable, all weather, day night surveillance a reality

Middle School Teacher Misconceptions and Anxieties Concerning Space Science Disciplinary Core Ideas in NGSS

Science.gov (United States)

Larsen, Kristine

2017-01-01

The Disciplinary Core Ideas (DCI) of the Next Generation Science Standards (NGSS) are grouped into the broad disciplinary areas of Physical Sciences, Life Sciences, Earth and Space Sciences, and Engineering, Technology and Application of Science, and feature learning progressions based on endpoint targets for each grade band. Since the Middle School DCIs build on the expected learning achievements to be reached by the end of Fifth Grade, and High School DCI similarly build on the expected learning achievements expected for the end of Eighth Grade, the Middle School grade band is of particular importance as the bridge between the Elementary and High School curriculum. In states where there is not a special Middle School Certification many of these science classes are taught by teachers prepared to teach at the Elementary level (and who may have limited content background). As a result, some pre-service and in-service teachers have expressed reduced self-confidence in both their own science content knowledge and their ability to apply it in the NGSS-based classroom, while decades of research has demonstrated the pervasiveness of science misconceptions among teachers. Thus the adoption of NGSS has the potential to drive talented teachers out of the profession who feel that they are ill-prepared for this sweeping transition. The key is providing rigorous education in both content and pedagogy for pre-service teachers and quality targeted professional development for in-service teachers. This report focuses on the Middle School Space Sciences grade band DCIs and presents research on specific difficulties, misconceptions and uncertainties with the material demonstrated by pre-service education students over the past four years in a required university science content course, as well as two year-long granted workshop series for current Middle School teachers. This information is relevant to the development of both new content courses aligned with NGSS for pre

Kerjasama Guru Bimbingan dan Konseling dengan Orangtua dalam Pengentasan Masalah Siswa Menonton Video Porno

Directory of Open Access Journals (Sweden)

Hotnarida Witasari

2014-01-01

Full Text Available The research shows that, Padangsidimpuan Public Senior High School 3 students’ behavior of watching porn video occured during teaching and learning process, during break time and when they getting bored with the routine activities. The media they use to watch porn video is handphone and Laptop. The problems found  are parents prefer hide the problem, the lackness of facility given by the headmaster, and the lackness of parents’ understanding on the importance of this cooperation.

Kerjasama Guru Bimbingan dan Konseling dengan Orangtua dalam Pengentasan Masalah Siswa Menonton Video Porno

OpenAIRE

Hotnarida Witasari

2014-01-01

The research shows that, Padangsidimpuan Public Senior High School 3 students’ behavior of watching porn video occured during teaching and learning process, during break time and when they getting bored with the routine activities. The media they use to watch porn video is handphone and Laptop. The problems found  are parents prefer hide the problem, the lackness of facility given by the headmaster, and the lackness of parents’ understanding on the importance of this cooperation.

School Principals' Emotional Coping Process

Science.gov (United States)

Poirel, Emmanuel; Yvon, Frédéric

2014-01-01

The present study examines the emotional coping of school principals in Quebec. Emotional coping was measured by stimulated recall; six principals were filmed during a working day and presented a week later with their video showing stressful encounters. The results show that school principals experience anger because of reproaches from staff…

Algorithm for Video Summarization of Bronchoscopy Procedures

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Leszczuk Mikołaj I

2011-12-01

Full Text Available Abstract Background The duration of bronchoscopy examinations varies considerably depending on the diagnostic and therapeutic procedures used. It can last more than 20 minutes if a complex diagnostic work-up is included. With wide access to videobronchoscopy, the whole procedure can be recorded as a video sequence. Common practice relies on an active attitude of the bronchoscopist who initiates the recording process and usually chooses to archive only selected views and sequences. However, it may be important to record the full bronchoscopy procedure as documentation when liability issues are at stake. Furthermore, an automatic recording of the whole procedure enables the bronchoscopist to focus solely on the performed procedures. Video recordings registered during bronchoscopies include a considerable number of frames of poor quality due to blurry or unfocused images. It seems that such frames are unavoidable due to the relatively tight endobronchial space, rapid movements of the respiratory tract due to breathing or coughing, and secretions which occur commonly in the bronchi, especially in patients suffering from pulmonary disorders. Methods The use of recorded bronchoscopy video sequences for diagnostic, reference and educational purposes could be considerably extended with efficient, flexible summarization algorithms. Thus, the authors developed a prototype system to create shortcuts (called summaries or abstracts of bronchoscopy video recordings. Such a system, based on models described in previously published papers, employs image analysis methods to exclude frames or sequences of limited diagnostic or education value. Results The algorithm for the selection or exclusion of specific frames or shots from video sequences recorded during bronchoscopy procedures is based on several criteria, including automatic detection of "non-informative", frames showing the branching of the airways and frames including pathological lesions. Conclusions

The LivePhoto Physics videos and video analysis site

Science.gov (United States)

Abbott, David

2009-09-01

The LivePhoto site is similar to an archive of short films for video analysis. Some videos have Flash tools for analyzing the video embedded in the movie. Most of the videos address mechanics topics with titles like Rolling Pencil (check this one out for pedagogy and content knowledge—nicely done!), Juggler, Yo-yo, Puck and Bar (this one is an inelastic collision with rotation), but there are a few titles in other areas (E&M, waves, thermo, etc.).

Ranking Highlights in Personal Videos by Analyzing Edited Videos.

Science.gov (United States)

Sun, Min; Farhadi, Ali; Chen, Tseng-Hung; Seitz, Steve

2016-11-01

We present a fully automatic system for ranking domain-specific highlights in unconstrained personal videos by analyzing online edited videos. A novel latent linear ranking model is proposed to handle noisy training data harvested online. Specifically, given a targeted domain such as "surfing," our system mines the YouTube database to find pairs of raw and their corresponding edited videos. Leveraging the assumption that an edited video is more likely to contain highlights than the trimmed parts of the raw video, we obtain pair-wise ranking constraints to train our model. The learning task is challenging due to the amount of noise and variation in the mined data. Hence, a latent loss function is incorporated to mitigate the issues caused by the noise. We efficiently learn the latent model on a large number of videos (about 870 min in total) using a novel EM-like procedure. Our latent ranking model outperforms its classification counterpart and is fairly competitive compared with a fully supervised ranking system that requires labels from Amazon Mechanical Turk. We further show that a state-of-the-art audio feature mel-frequency cepstral coefficients is inferior to a state-of-the-art visual feature. By combining both audio-visual features, we obtain the best performance in dog activity, surfing, skating, and viral video domains. Finally, we show that impressive highlights can be detected without additional human supervision for seven domains (i.e., skating, surfing, skiing, gymnastics, parkour, dog activity, and viral video) in unconstrained personal videos.

Experimental study of the differential effects of playing versus watching violent video games on children's aggressive behavior.

Science.gov (United States)

Polman, Hanneke; de Castro, Bram Orobio; van Aken, Marcel A G

2008-01-01

There is great concern about the effects of playing violent video games on aggressive behavior. The present experimental study was aimed at investigating the differential effects of actively playing vs. passively watching the same violent video game on subsequent aggressive behavior. Fifty-seven children aged 10-13 either played a violent video game (active violent condition), watched the same violent video game (passive violent condition), or played a non-violent video game (active non-violent condition). Aggression was measured through peer nominations of real-life aggressive incidents during a free play session at school. After the active participation of actually playing the violent video game, boys behaved more aggressively than did the boys in the passive game condition. For girls, game condition was not related to aggression. These findings indicate that, specifically for boys, playing a violent video game should lead to more aggression than watching television violence. Copyright 2007 Wiley-Liss, Inc.

Video processing for human perceptual visual quality-oriented video coding.

Science.gov (United States)

Oh, Hyungsuk; Kim, Wonha

2013-04-01

We have developed a video processing method that achieves human perceptual visual quality-oriented video coding. The patterns of moving objects are modeled by considering the limited human capacity for spatial-temporal resolution and the visual sensory memory together, and an online moving pattern classifier is devised by using the Hedge algorithm. The moving pattern classifier is embedded in the existing visual saliency with the purpose of providing a human perceptual video quality saliency model. In order to apply the developed saliency model to video coding, the conventional foveation filtering method is extended. The proposed foveation filter can smooth and enhance the video signals locally, in conformance with the developed saliency model, without causing any artifacts. The performance evaluation results confirm that the proposed video processing method shows reliable improvements in the perceptual quality for various sequences and at various bandwidths, compared to existing saliency-based video coding methods.

No Reference Video-Quality-Assessment Model for Monitoring Video Quality of IPTV Services

Science.gov (United States)

Yamagishi, Kazuhisa; Okamoto, Jun; Hayashi, Takanori; Takahashi, Akira

Service providers should monitor the quality of experience of a communication service in real time to confirm its status. To do this, we previously proposed a packet-layer model that can be used for monitoring the average video quality of typical Internet protocol television content using parameters derived from transmitted packet headers. However, it is difficult to monitor the video quality per user using the average video quality because video quality depends on the video content. To accurately monitor the video quality per user, a model that can be used for estimating the video quality per video content rather than the average video quality should be developed. Therefore, to take into account the impact of video content on video quality, we propose a model that calculates the difference in video quality between the video quality of the estimation-target video and the average video quality estimated using a packet-layer model. We first conducted extensive subjective quality assessments for different codecs and video sequences. We then model their characteristics based on parameters related to compression and packet loss. Finally, we verify the performance of the proposed model by applying it to unknown data sets different from the training data sets used for developing the model.

The Nasa space radiation school, an excellent training in radiobiology and space radiation protection

International Nuclear Information System (INIS)

Vogin, G.

2009-01-01

The astronauts have to spend more time in space and the colonization of the moon and Mars are in the cross hairs of international agencies. The cosmic radiation from which we are protected on ground by atmosphere and by the terrestrial magnetosphere (.4 mSv/year according to Who) become really threatening since 20 km altitude, delivering an average radiation dose of a therapeutic kind to astronauts with peaks related to solar events. It is composed in majority of hadrons: protons (85%) and heavy ions (13%), but also photons (2%) of high energy (GeV/n)). the incurred risks are multiple: early ones(cataract, central nervous system damages, whole body irradiation) but especially delayed ones (carcinogenesis). The astronauts radiation protection turns poor and the rate of death risk by cancer returning from a mission on Mars has been estimated at 5%. The Nasa created in 2004 a summer school aiming to awareness young researchers to the space radiobiology specificities. Areas concerned as follow: radioinduced DNA damage and repair, cell cycle, apoptosis, bystander effect, genome instability, neuro degeneration, delayed effects and carcinogenesis in relation with radiation exposure. (N.C.)

The Next Generation Advanced Video Guidance Sensor: Flight Heritage and Current Development

Science.gov (United States)

Howard, Richard T.; Bryan, Thomas C.

2009-01-01

The Next Generation Advanced Video Guidance Sensor (NGAVGS) is the latest in a line of sensors that have flown four times in the last 10 years. The NGAVGS has been under development for the last two years as a long-range proximity operations and docking sensor for use in an Automated Rendezvous and Docking (AR&D) system. The first autonomous rendezvous and docking in the history of the U.S. Space Program was successfully accomplished by Orbital Express, using the Advanced Video Guidance Sensor (AVGS) as the primary docking sensor. That flight proved that the United States now has a mature and flight proven sensor technology for supporting Crew Exploration Vehicles (CEV) and Commercial Orbital Transport Systems (COTS) Automated Rendezvous and Docking (AR&D). NASA video sensors have worked well in the past: the AVGS used on the Demonstration of Autonomous Rendezvous Technology (DART) mission operated successfully in "spot mode" out to 2 km, and the first generation rendezvous and docking sensor, the Video Guidance Sensor (VGS), was developed and successfully flown on Space Shuttle flights in 1997 and 1998. This paper presents the flight heritage and results of the sensor technology, some hardware trades for the current sensor, and discusses the needs of future vehicles that may rendezvous and dock with the International Space Station (ISS) and other Constellation vehicles. It also discusses approaches for upgrading AVGS to address parts obsolescence, and concepts for minimizing the sensor footprint, weight, and power requirements. In addition, the testing of the various NGAVGS development units will be discussed along with the use of the NGAVGS as a proximity operations and docking sensor.

A brief report on the relationship between self-control, video game addiction and academic achievement in normal and ADHD students.

Science.gov (United States)

Haghbin, Maryam; Shaterian, Fatemeh; Hosseinzadeh, Davood; Griffiths, Mark D

2013-12-01

Over the last two decades, research into video game addiction has grown increasingly. The present research aimed to examine the relationship between video game addiction, self-control, and academic achievement of normal and ADHD high school students. Based on previous research it was hypothesized that (i) there would be a relationship between video game addiction, self-control and academic achievement (ii) video game addiction, self-control and academic achievement would differ between male and female students, and (iii) the relationship between video game addiction, self-control and academic achievement would differ between normal students and ADHD students. The research population comprised first grade high school students of Khomeini-Shahr (a city in the central part of Iran). From this population, a sample group of 339 students participated in the study. The survey included the Game Addiction Scale (Lemmens, Valkenburg & Peter, 2009), the Self-Control Scale (Tangney, Baumeister & Boone, 2004) and the ADHD Diagnostic checklist (Kessler et al., 2007). In addition to questions relating to basic demographic information, students' Grade Point Average (GPA) for two terms was used for measuring their academic achievement. These hypotheses were examined using a regression analysis. Among Iranian students, the relationship between video game addiction, self-control, and academic achievement differed between male and female students. However, the relationship between video game addiction, self-control, academic achievement, and type of student was not statistically significant. Although the results cannot demonstrate a causal relationship between video game use, video game addiction, and academic achievement, they suggest that high involvement in playing video games leaves less time for engaging in academic work.

The Effects of an Educational Video Game on Mathematical Engagement

Science.gov (United States)

Chang, Mido; Evans, Michael A.; Kim, Sunha; Norton, Anderson; Deater-Deckard, Kirby; Samur, Yavuz

2016-01-01

In an effort to maximizing success in mathematics, our research team implemented an educational video game in fifth grade mathematics classrooms in five schools in the Eastern US. The educational game was developed by our multi-disciplinary research team to achieve a hypothetical learning trajectory of mathematical thinking of 5th grade students.…

The production of scientific videos: a theoretical approach

Directory of Open Access Journals (Sweden)

Carlos Ernesto Gavilondo Rodriguez

2016-12-01

Full Text Available The article presents the results of theoretical research on the production of scientific videos and its application to the teaching-learning process carried out in schools in the city of Guayaquil, Ecuador. It is located within the production line and Audiovisual Communication. Creation of scientific videos, from the Communication major with a concentration in audiovisual production and multimedia of the Salesian Polytechnic University. For the realization of the article it was necessary to use key terms that helped subsequently to data collection. used terms such as: audiovisual production, understood as the production of content for audiovisual media; the following term used audiovisual communication is recognized as the process in which there is an exchange of messages through an audible and / or visual system; and the last term we use is scientifically video, which is one that uses audiovisual resources to obtain relevant and reliable information.As part of the theoretical results a methodological proposal for the video production is presented for educational purposes. In conclusion set out, first, that from the communicative statement in recent times, current social relations, constitute a successful context of possibilities shown to education to generate meeting points between the world of the everyday and the knowledge. Another indicator validated as part of the investigation, is that teachers surveyed use the potential of the audiovisual media, and supported them, deploy alternatives for use. 

Affinity Spaces and 21st Century Learning

Science.gov (United States)

Gee, James Paul

2017-01-01

This article discusses video games as "attractors" to "affinity spaces." It argues that affinity spaces are key sites today where people teach and learn 21st Century skills. While affinity spaces are proliferating on the Internet as interest-and-passion-driven sites devoted to a common set of endeavors, they are not new, just…

"We don't need no education": Video game preferences, video game motivations, and aggressiveness among adolescent boys of different educational ability levels.

Science.gov (United States)

Nije Bijvank, Marije; Konijn, Elly A; Bushman, Brad J

2012-02-01

This research focuses on low educational ability as a risk factor for aggression and violent game play. We propose that boys of lower educational ability are more attracted to violent video games than other boys are, and that they are also higher in trait aggressiveness and sensation seeking. Participants were Dutch boys in public schools (N = 830, age-range 11-17). In the Netherlands, standardized tests are used to place students into lower, medium, and higher educational ability groups. Results showed that boys in the lower educational ability group preferred to play violent, stand-alone games, identified more with video game characters, and perceived video games to be more realistic than other boys did. Lower levels of education were also related to higher levels of aggressiveness and sensation seeking. Higher educational ability boys preferred social, multiplayer games. Within a risk and resilience model, boys with lower educational ability are at greater risk for aggression. Copyright © 2011 The Foundation for Professionals in Services for Adolescents. All rights reserved.

GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) IFLOODS V1

Data.gov (United States)

National Aeronautics and Space Administration — The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) IFloodS dataset was collected during the GPM Ground Validation Iowa Flood Studies (IFloodS) field...

Physics and Video Analysis

Science.gov (United States)

Allain, Rhett

2016-05-01

We currently live in a world filled with videos. There are videos on YouTube, feature movies and even videos recorded with our own cameras and smartphones. These videos present an excellent opportunity to not only explore physical concepts, but also inspire others to investigate physics ideas. With video analysis, we can explore the fantasy world in science-fiction films. We can also look at online videos to determine if they are genuine or fake. Video analysis can be used in the introductory physics lab and it can even be used to explore the make-believe physics embedded in video games. This book covers the basic ideas behind video analysis along with the fundamental physics principles used in video analysis. The book also includes several examples of the unique situations in which video analysis can be used.

Bedtime activities, sleep environment, and sleep/wake patterns of Japanese elementary school children.

Science.gov (United States)

Oka, Yasunori; Suzuki, Shuhei; Inoue, Yuich

2008-01-01

Bedtime activities, sleep environment, and their impact on sleep/wake patterns were assessed in 509 elementary school children (6-12 years of age; 252 males and 257 females). Television viewing, playing video games, and surfing the Internet had negative impact on sleep/wake parameters. Moreover, presence of a television set or video game in the child's bedroom increased their activity before bedtime. Time to return home later than 8 p.m. from after-school activity also had a negative impact on sleep/wake patterns. Health care practitioners should be aware of the potential negative impact of television, video games, and the Internet before bedtime, and also the possibility that late after-school activity can disturb sleep/wake patterns.

Video games

OpenAIRE

Kolář, Vojtěch

2012-01-01

This thesis is based on a detailed analysis of various topics related to the question of whether video games can be art. In the first place it analyzes the current academic discussion on this subject and confronts different opinions of both supporters and objectors of the idea, that video games can be a full-fledged art form. The second point of this paper is to analyze the properties, that are inherent to video games, in order to find the reason, why cultural elite considers video games as i...

A hardware architecture for real-time shadow removal in high-contrast video

Science.gov (United States)

Verdugo, Pablo; Pezoa, Jorge E.; Figueroa, Miguel

2017-09-01

Broadcasting an outdoor sports event at daytime is a challenging task due to the high contrast that exists between areas in the shadow and light conditions within the same scene. Commercial cameras typically do not handle the high dynamic range of such scenes in a proper manner, resulting in broadcast streams with very little shadow detail. We propose a hardware architecture for real-time shadow removal in high-resolution video, which reduces the shadow effect and simultaneously improves shadow details. The algorithm operates only on the shadow portions of each video frame, thus improving the results and producing more realistic images than algorithms that operate on the entire frame, such as simplified Retinex and histogram shifting. The architecture receives an input in the RGB color space, transforms it into the YIQ space, and uses color information from both spaces to produce a mask of the shadow areas present in the image. The mask is then filtered using a connected components algorithm to eliminate false positives and negatives. The hardware uses pixel information at the edges of the mask to estimate the illumination ratio between light and shadow in the image, which is then used to correct the shadow area. Our prototype implementation simultaneously processes up to 7 video streams of 1920×1080 pixels at 60 frames per second on a Xilinx Kintex-7 XC7K325T FPGA.

``Out To Sea: Life as a Crew Member Aboard a Geologic Research Ship'' - Production of a Video and Teachers Guide.

Science.gov (United States)

Rack, F. R.; Tauxe, K.

2004-12-01

In May 2002, Joint Oceanographic Institutions (JOI) received a proposal entitled "Motivating Middle School Students with the JOIDES Resolution", from a middle school teacher in New Mexico named Katie Tauxe. Katie was a former Marine Technician who has worked aboard the R/V JOIDES Resolution in the early years of the Ocean Drilling Program (ODP). She proposed to engage the interest of middle school students using the ODP drillship as the centerpiece of a presentation focused on the lives of the people who work aboard the ship and the excitement of science communicated through an active shipboard experience. The proposal asked for travel funds to and from the ship, the loan of video camera equipment from JOI, and a small amount of funding to cover expendable supplies, video editing, and production at the local Public Broadcasting Station in Los Alamos, NM. Katie sailed on the transit of the JOIDES Resolution through the Panama Canal, following the completion of ODP Leg 206 in late 2002. This presentation will focus on the outcome of this video production effort, which is a 19 minute-long video entitled "Out to Sea: Life as a Crew Member Aboard a Geologic Research Ship", and a teacher's guide that can be found online.

How Color Properties Can Be Used to Elicit Emotions in Video Games

Directory of Open Access Journals (Sweden)

Erik Geslin

2016-01-01

Full Text Available Classifying the many types of video games is difficult, as their genres and supports are different, but they all have in common that they seek the commitment of the player through exciting emotions and challenges. Since the income of the video game industry exceeds that of the film industry, the field of inducting emotions through video games and virtual environments is attracting more attention. Our theory, widely supported by substantial literature, is that the chromatic stimuli intensity, brightness, and saturation of a video game environment produce an emotional effect on players. We have observed a correlation between the RGB additives color spaces, HSV, HSL, and HSI components of video game images, presented to n=85 participants, and the emotional statements expressed in terms of arousal and valence, recovered in a subjective semantic questionnaire. Our results show a significant correlation between luminance, saturation, lightness, and the emotions of joy, sadness, fear, and serenity experienced by participants viewing 24 video game images. We also show strong correlations between the colorimetric diversity, saliency volume, and stimuli conspicuity and the emotions expressed by the players. These results allow us to propose video game environment development methods in the form of a circumplex model. It is aimed at game designers for developing emotional color scripting.

Establishing a Distance Learning Plan for International Space Station (ISS) Interactive Video Education Events (IVEE)

Science.gov (United States)

Wallington, Clint

1999-01-01

Educational outreach is an integral part of the International Space Station (ISS) mandate. In a few scant years, the International Space Station has already established a tradition of successful, general outreach activities. However, as the number of outreach events increased and began to reach school classrooms, those events came under greater scrutiny by the education community. Some of the ISS electronic field trips, while informative and helpful, did not meet the generally accepted criteria for education events, especially within the context of the classroom. To make classroom outreach events more acceptable to educators, the ISS outreach program must differentiate between communication events (meant to disseminate information to the general public) and education events (designed to facilitate student learning). In contrast to communication events, education events: are directed toward a relatively homogeneous audience who are gathered together for the purpose of learning, have specific performance objectives which the students are expected to master, include a method of assessing student performance, and include a series of structured activities that will help the students to master the desired skill(s). The core of the ISS education events is an interactive videoconference between students and ISS representatives. This interactive videoconference is to be preceded by and followed by classroom activities which help the students aftain the specified learning objectives. Using the interactive videoconference as the centerpiece of the education event lends a special excitement and allows students to ask questions about what they are learning and about the International Space Station and NASA. Whenever possible, the ISS outreach education events should be congruent with national guidelines for student achievement. ISS outreach staff should recognize that there are a number of different groups that will review the events, and that each group has different criteria

Sounds of Space

Science.gov (United States)

Gurnett, D. A.

2005-12-01

Starting in the early 1960s, spacecraft-borne plasma wave instruments revealed that space is filled with an astonishing variety of radio and plasma wave sounds, which have come to be called "sounds of space." For over forty years these sounds have been collected and played to a wide variety of audiences, often as the result of press conferences or press releases involving various NASA projects for which the University of Iowa has provided plasma wave instruments. This activity has led to many interviews on local and national radio programs, and occasionally on programs haviang world-wide coverage, such as the BBC. As a result of this media coverage, we have been approached many times by composers requesting copies of our space sounds for use in their various projects, many of which involve electronic synthesis of music. One of these collaborations led to "Sun Rings," which is a musical event produced by the Kronos Quartet that has played to large audiences all over the world. With the availability of modern computer graphic techniques we have recently been attempting to integrate some of these sound of space into an educational audio/video web site that illustrates the scientific principles involved in the origin of space plasma waves. Typically I try to emphasize that a substantial gas pressure exists everywhere in space in the form of an ionized gas called a plasma, and that this plasma can lead to a wide variety of wave phenomenon. Examples of some of this audio/video material will be presented.

Lens on Climate Change: Making Climate Meaningful through Student-Produced Videos

Science.gov (United States)

Gold, Anne U.; Oonk, David J.; Smith, Lesley; Boykoff, Maxwell T.; Osnes, Beth; Sullivan, Susan B.

2015-01-01

Learning about climate change is tangible when it addresses impacts that can be observed close to home. In this program, sixty-four diverse middle and high school students produced videos about locally relevant climate change topics. Graduate and undergraduate students provided mentorship. The program engaged students in research and learning…

CAN OPEN MEAN TERBUKA? NEGOTIATING LICENSES FOR INDONESIAN VIDEO ACTIVISM

Directory of Open Access Journals (Sweden)

Alexandra Crosby

2010-01-01

Full Text Available Abstract: Since the fall of Suharto’s New Order regime in Indonesia, space has been opened up for the emergence and development of new practices of media production and distribution, such as the use of video for social change. As access to the technology for producing, distributing and watching video becomes increasingly democratised in Indonesia over this period, a spectrum of approaches to licensing are developing in response to ideology as well as economic impetus. These include the full adherence to the global norms of intellectual property rights, market-driven piracy, politically based rejection of any restrictions, and a burgeoning interest in Creative Commons.While Indonesia hosts one of the most enthusiastic cultures of digital sharing, this article argues that there is not yet a solution for the issues of copyright management that fits the Indonesian context. We examine the work of several groups who are currently active in producing social and environmental video in the archipelago. These include VideoBattle, Forum Lenteng, and the EngageMedia network.

Multi-modal highlight generation for sports videos using an information-theoretic excitability measure

Science.gov (United States)

Hasan, Taufiq; Bořil, Hynek; Sangwan, Abhijeet; L Hansen, John H.

2013-12-01

The ability to detect and organize `hot spots' representing areas of excitement within video streams is a challenging research problem when techniques rely exclusively on video content. A generic method for sports video highlight selection is presented in this study which leverages both video/image structure as well as audio/speech properties. Processing begins where the video is partitioned into small segments and several multi-modal features are extracted from each segment. Excitability is computed based on the likelihood of the segmental features residing in certain regions of their joint probability density function space which are considered both exciting and rare. The proposed measure is used to rank order the partitioned segments to compress the overall video sequence and produce a contiguous set of highlights. Experiments are performed on baseball videos based on signal processing advancements for excitement assessment in the commentators' speech, audio energy, slow motion replay, scene cut density, and motion activity as features. Detailed analysis on correlation between user excitability and various speech production parameters is conducted and an effective scheme is designed to estimate the excitement level of commentator's speech from the sports videos. Subjective evaluation of excitability and ranking of video segments demonstrate a higher correlation with the proposed measure compared to well-established techniques indicating the effectiveness of the overall approach.

Real-time UAV trajectory generation using feature points matching between video image sequences

Science.gov (United States)

Byun, Younggi; Song, Jeongheon; Han, Dongyeob

2017-09-01

Unmanned aerial vehicles (UAVs), equipped with navigation systems and video capability, are currently being deployed for intelligence, reconnaissance and surveillance mission. In this paper, we present a systematic approach for the generation of UAV trajectory using a video image matching system based on SURF (Speeded up Robust Feature) and Preemptive RANSAC (Random Sample Consensus). Video image matching to find matching points is one of the most important steps for the accurate generation of UAV trajectory (sequence of poses in 3D space). We used the SURF algorithm to find the matching points between video image sequences, and removed mismatching by using the Preemptive RANSAC which divides all matching points to outliers and inliers. The inliers are only used to determine the epipolar geometry for estimating the relative pose (rotation and translation) between image sequences. Experimental results from simulated video image sequences showed that our approach has a good potential to be applied to the automatic geo-localization of the UAVs system

Relacije umetnosti i video igara / Relations of Art and Video Games

OpenAIRE

Manojlo Maravić

2012-01-01

When discussing the art of video games, three different contexts need to be considered: the 'high' art (video games and the art); commercial video games (video games as the art) and the fan art. Video games are a legitimate artistic medium subject to modifications and recontextualisations in the process of creating a specific experience of the player/user/audience and political action by referring to particular social problems. They represent a high technological medium that increases, with p...

Pathological video game use among youths: a two-year longitudinal study.

Science.gov (United States)

Gentile, Douglas A; Choo, Hyekyung; Liau, Albert; Sim, Timothy; Li, Dongdong; Fung, Daniel; Khoo, Angeline

2011-02-01

We aimed to measure the prevalence and length of the problem of pathological video gaming or Internet use, to identify risk and protective factors, to determine whether pathological gaming is a primary or secondary problem, and to identify outcomes for individuals who become or stop being pathological gamers. A 2-year, longitudinal, panel study was performed with a general elementary and secondary school population in Singapore, including 3034 children in grades 3 (N = 743), 4 (N = 711), 7 (N = 916), and 8 (N = 664). Several hypothesized risk and protective factors for developing or overcoming pathological gaming were measured, including weekly amount of game play, impulsivity, social competence, depression, social phobia, anxiety, and school performance. The prevalence of pathological gaming was similar to that in other countries (∼9%). Greater amounts of gaming, lower social competence, and greater impulsivity seemed to act as risk factors for becoming pathological gamers, whereas depression, anxiety, social phobias, and lower school performance seemed to act as outcomes of pathological gaming. This study adds important information to the discussion about whether video game "addiction" is similar to other addictive behaviors, demonstrating that it can last for years and is not solely a symptom of comorbid disorders.

Rare Disease Video Portal

OpenAIRE

Sánchez Bocanegra, Carlos Luis

2011-01-01

Rare Disease Video Portal (RD Video) is a portal web where contains videos from Youtube including all details from 12 channels of Youtube. Rare Disease Video Portal (RD Video) es un portal web que contiene los vídeos de Youtube incluyendo todos los detalles de 12 canales de Youtube. Rare Disease Video Portal (RD Video) és un portal web que conté els vídeos de Youtube i que inclou tots els detalls de 12 Canals de Youtube.

Evaluation of 3 dimensional video to dissemination of nuclear energy by high school students

International Nuclear Information System (INIS)

Legey, Ana Paula; Mol, Antonio Carlos A.; Jorge, Carlos Alexandre F.; Marins, Eugenio R.; Chelles, Daniel R.

2013-01-01

Educational videos can enhance the information transmission, making it more didactic. The use of virtual reality technologies can turn the environment even more entertaining through 3D projections, due to its imersive characteristics. Using these technologies can improve learning, since they provide more ludic means, as compared to traditional ones, such as texts, oral presentations and static images. This paper encompass the development of an educational video and an assessment carried out with students through a questionnaire. Students' assessment is in agreement with this work's objectives. They found the activity fun, enjoyable, and the use of 3D video drew students' attention to important details of the contents, such as power generation; the way nuclear power plants are distributed to cities; their distribution in the world including Brazil; that nuclear power is safe, economical and efficient; the understanding of nuclear energy as a clean and harmless power source; in addition to applications in medicine. (author)

Evaluation of 3 dimensional video to dissemination of nuclear energy by high school students

Energy Technology Data Exchange (ETDEWEB)

Legey, Ana Paula; Mol, Antonio Carlos A.; Jorge, Carlos Alexandre F.; Marins, Eugenio R.; Chelles, Daniel R., E-mail: ana.legey@pq.cnpq.br, E-mail: mol@ien.gov.br, E-mail: calexandre@ien.gov.br, E-mail: eugenio@ien.gov.br, E-mail: daniel.chelles@gmail.com [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

2013-07-01

Educational videos can enhance the information transmission, making it more didactic. The use of virtual reality technologies can turn the environment even more entertaining through 3D projections, due to its imersive characteristics. Using these technologies can improve learning, since they provide more ludic means, as compared to traditional ones, such as texts, oral presentations and static images. This paper encompass the development of an educational video and an assessment carried out with students through a questionnaire. Students' assessment is in agreement with this work's objectives. They found the activity fun, enjoyable, and the use of 3D video drew students' attention to important details of the contents, such as power generation; the way nuclear power plants are distributed to cities; their distribution in the world including Brazil; that nuclear power is safe, economical and efficient; the understanding of nuclear energy as a clean and harmless power source; in addition to applications in medicine. (author)

Medical students' perceptions of video-linked lectures and video-streaming

Directory of Open Access Journals (Sweden)

Karen Mattick

2010-12-01

Full Text Available Video-linked lectures allow healthcare students across multiple sites, and between university and hospital bases, to come together for the purposes of shared teaching. Recording and streaming video-linked lectures allows students to view them at a later date and provides an additional resource to support student learning. As part of a UK Higher Education Academy-funded Pathfinder project, this study explored medical students' perceptions of video-linked lectures and video-streaming, and their impact on learning. The methodology involved semi-structured interviews with 20 undergraduate medical students across four sites and five year groups. Several key themes emerged from the analysis. Students generally preferred live lectures at the home site and saw interaction between sites as a major challenge. Students reported that their attendance at live lectures was not affected by the availability of streamed lectures and tended to be influenced more by the topic and speaker than the technical arrangements. These findings will inform other educators interested in employing similar video technologies in their teaching.Keywords: video-linked lecture; video-streaming; student perceptions; decisionmaking; cross-campus teaching.

Breaking News: Utilizing Video Simulations to Improve Educational Leaders' Public Speaking Skills

Science.gov (United States)

Friend, Jennifer; Adams, April; Curry, George

2011-01-01

This article examines specific uses of video simulations in one educational leadership preparation program to advance future school and district leaders' skills related to public speaking and participation in televised news interviews. One faculty member and two advanced educational leadership candidates share their perspectives of several…

Automated Indexing and Search of Video Data in Large Collections with inVideo

Directory of Open Access Journals (Sweden)

Shuangbao Paul Wang

2017-08-01

Full Text Available In this paper, we present a novel system, inVideo, for automatically indexing and searching videos based on the keywords spoken in the audio track and the visual content of the video frames. Using the highly efficient video indexing engine we developed, inVideo is able to analyze videos using machine learning and pattern recognition without the need for initial viewing by a human. The time-stamped commenting and tagging features refine the accuracy of search results. The cloud-based implementation makes it possible to conduct elastic search, augmented search, and data analytics. Our research shows that inVideo presents an efficient tool in processing and analyzing videos and increasing interactions in video-based online learning environment. Data from a cybersecurity program with more than 500 students show that applying inVideo to current video material, interactions between student-student and student-faculty increased significantly across 24 sections program-wide.

MoViE: Experiences and attitudes—Learning with a mobile social video application

Directory of Open Access Journals (Sweden)

Pauliina Tuomi

2010-10-01

Full Text Available Digital media is increasingly finding its way into the discussions of the classroom. Particularly interest is placed on mobile learning—the learning and teaching practices done with or via different mobile devices. Learning with the help of mobile devices is increasingly common and it is considered to be one of the 21st century skills children should adapt already in early stages in schools. The article presents both qualitative and quantitative study on mobile social video application, MoViE, as a part of teaching in biology and geography in 8th and 9th grades. The multidisciplinary data was processed to answer the following question: How did the use of mobile videos promote learning? The actual research question is however twofold: On one hand, it studies the use of mobile videos in mobile learning. On the other hand, it sets out to investigate the implementation of mobile video sharing as a part of the teaching and learning activities.

Celebrity endorsed music videos: innovation to foster youth health promotion.

Science.gov (United States)

Macnab, A J; Mukisa, R

2018-06-11

There are calls for innovation in health promotion and for current issues to be presented in new and exciting ways; in addition to creating engaging messages, novel ways to deliver health messaging are needed, especially where youth are the key target audience. When pupils in WHO Health Promoting Schools were asked what health messages would resonate with them, they also identified celebrities as the 'messengers' they would be particularly likely to listen to. Expanding on these discussions, the pupils quoted celebrity-recorded music videos containing health and lifestyle messaging as an example of where they had learned from celebrities. Their ability to sing phrases from the songs and repeat key health messages they contained indicated the videos had commanded attention and provided knowledge and perspectives that had been retained. We located on YouTube the video titles the pupils identified and evaluated the content, messaging and production concepts these celebrity-recorded music videos incorporated. All are good examples of the health promotion genre known as education entertainment, where educational content is intentionally included in professionally produced entertainment media to impart knowledge, create favorable attitudes and impact future behaviors. The importance of this genre is growing in parallel with the burgeoning influence of social media. Music videos resonate with youth, and celebrity recordings combine young people's love of music with their fascination for the aura of celebrity. Hence, producing videos that combine an effective health message with celebrity endorsement offers potential as an innovative conduit for health promotion messaging among youth.

Automatic Keyframe Summarization of User-Generated Video

Science.gov (United States)

2014-06-01

over longer periods of space and time. Additionally, the storyline may be less crafted or coherent when compared to professional cinema . As such, shot...attention in videos, whether it be their presence, location, identity , actions, or relationships to other humans. In this regard, automatic human capture...among other things. A person AOC has an identity property. Properties of an AOC that a stakeholder considers important are called POCs. 3.1.3

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... YouTube Videos » NEI YouTube Videos: Amblyopia Listen NEI YouTube Videos YouTube Videos Home Age-Related Macular Degeneration ... Retinopathy of Prematurity Science Spanish Videos Webinars NEI YouTube Videos: Amblyopia Embedded video for NEI YouTube Videos: ...

Problem Solving Processes and Video Games: The Sim City Creator Case

Science.gov (United States)

Monjelat, Natalia; Mendez-Zaballos, Laura; Lacasa, Pilar

2012-01-01

Introduction: Video games have proven to be a valuable resource to work different school subjects and topics. Beyond specific content, they could help to develop different abilities, like problem solving. However, not much has been studied on this topic, or many of the studies followed a perspective not entirely compatible with an educational…

Guerrilla Video: A New Protocol for Producing Classroom Video

Science.gov (United States)

Fadde, Peter; Rich, Peter

2010-01-01

Contemporary changes in pedagogy point to the need for a higher level of video production value in most classroom video, replacing the default video protocol of an unattended camera in the back of the classroom. The rich and complex environment of today's classroom can be captured more fully using the higher level, but still easily manageable,…

The Annie Jump Cannon Video Project at the Harvard-Smithsonian Center for Astrophysics.

Science.gov (United States)

Lupfer, C.; Welther, B. L.; Griswold, A.

1993-05-01

The heart of this poster paper is the screening of the new 25-minute educational video, ``Annie and the Stars of Many Colors.'' It explores the life and work of Annie Jump Cannon through the eyes of sixth-grade students. A production of the Science Media Group at the CfA, the video was created to interest and inspire girls and minorities, in particular, to continue their study of history and physical science in high school. Recent studies show that science teachers are successfully using videotapes in the classroom to supplement traditional methods of teaching. Other reports show that capable girls and minority students tend to drop science in high school. Our goal, then, was to create a video to stimulate the curiosity and natural interest in science of these younger students. With the help of the Public Affairs Office at the CfA, we arranged to visit local schools to talk to sixth-grade science teachers and their students about the video project. Boys and girls were both eager to participate in it. By lottery, we chose a dozen youngsters of multi-cultural backgrounds to attend a three-day workshop, during which we videotaped them discovering facts about Cannon's childhood and career. Barbara Welther, historian and principal investigator, took the group to the Harvard University Archives to look at some Cannon memorabilia. To learn about spectra, each student assembled a spectroscope from a kit and observed solar lines. CfA astronomers then led the group in various activities to explore the types of stellar spectra that Cannon classified and published in The Henry Draper Catalogue 75 years ago.% and that astronomers still study today. ``Annie and the Stars of Many Colors'' shows young people actively engaged in the process of discovery and offers teachers a novel tool to stimulate discussion of topics in science, history, women's studies, and careers. It is intended for use in schools, libraries, museums, planetariums, as well as for personal interest. For more

Increasing STEM Exposure in K–5 Schools Through MakerSpace Use: A Multi-Site Early Success Case Study

OpenAIRE

Ortega, Veronica Inez

2017-01-01

Using Brinkerhoff’s success case methodology, this multi-site case study examined early models of MakerSpace implementation in K–5 schools in a single district. Specifically, this study examined the early use of MakerSpaces as well as the supports and barriers affecting teacher use of these spaces. The study also examined curricular connections and MakerSpace use as a conduit for purveying instruction in the soon-to-be-implemented Next Generation Science Standards. The findings of this stud...

NFL Films music scoring stage and control room space

Science.gov (United States)

Berger, Russ; Schrag, Richard C.; Ridings, Jason J.

2003-04-01

NFL Films' new 200,000 sq. ft. corporate headquarters is home to an orchestral scoring stage used to record custom music scores to support and enhance their video productions. Part of the 90,000 sq. ft. of sound critical technical space, the music scoring stage and its associated control room are at the heart of the audio facilities. Driving the design were the owner's mandate for natural light, wood textures, and an acoustical environment that would support small rhythm sections, soloists, and a full orchestra. Being an industry leader in cutting-edge video and audio formats, the NFLF required that the technical spaces allow the latest in technology to be continually integrated into the infrastructure. Never was it more important for a project to hold true to the adage of ``designing from the inside out.'' Each audio and video space within the facility had to stand on its own with regard to user functionality, acoustical accuracy, sound isolation, noise control, and monitor presentation. A detailed look at the architectural and acoustical design challenges encountered and the solutions developed for the performance studio and the associated control room space will be discussed.

Randomized controlled trial to evaluate the effectiveness of a video game as a child pedestrian educational tool.

Science.gov (United States)