382,722 research outputs found

    Partial Loopholes Free Device Independent Quantum Random Number Generator Using IBM's Quantum Computers

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    Random numbers form an intrinsic part of modern day computing with applications in a wide variety of fields. But due to their limitations, the use of pseudo random number generators (PRNGs) is certainly not desirable for sensitive applications. Quantum systems due to their intrinsic randomness form a suitable candidate for generation of true random numbers that can also be certified. In this work, the violation of CHSH inequality has been used to propose a scheme by which one can generate device independent quantum random numbers by use of IBM quantum computers that are available on the cloud. The generated random numbers have been tested for their source of origin through experiments based on the testing of CHSH inequality through available IBM quantum computers. The performance of each quantum computer against the CHSH test has been plotted and characterized. Further, efforts have been made to close as many loopholes as possible to produce device independent quantum random number generators. This study will provide new directions for the development of self-testing and semi-self-testing random number generators using quantum computers.Comment: We present a scheme by which one can generate device independent quantum random numbers by use of IBM quantum computers that are available on the clou

    SPHERES Facility

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    Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) are bowling-ball sized satellites that provide a test bed for development and research into multi-body formation flying, multi-spacecraft control algorithms, and free-flying physical and material science investigations. Up to three self-contained free-flying satellites can fly within the cabin of the International Space Station (ISS), performing flight formations, testing of control algorithms or as a platform for investigations requiring this unique free-flying test environment. Each satellite is a self-contained unit with power, propulsion, computers, navigation equipment, and provides physical and electrical connections (via standardized expansion ports) for Principal Investigator (PI) provided hardware and sensors

    MOVING TOWARDS COMPUTER ADAPTIVE TESTING: THE EFFECT OF EXPERIENCE WITH TECHNOLOGY ON ELEMENTARY STUDENTS’ SCORES AND ATTITUDES

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    In this quantitative study, students’ growth over the course of the school year on the i-Ready test were analyzed. Using an ex post facto design, the i-Ready growth scores of students with experience of the testing format (n=45) were compared to the growth scores of the students with no experience of the testing format (n=179). A descriptive analysis was performed to analyze the students’ feelings and perceptions about adaptive Computer-Based testing conducted within their schools. Fourth and fifth grade students (n=27) answered an open-ended survey, which were used to see how elementary school students feel about the shift from Paper-Based to Computer-Based testing. Results indicate that there were no significant differences in scores between students with experience and students without experience, nor were there differences between the achievement of students based on gender or instructional groups. The surveys indicate that students enjoy using computer-based testing, but experienced trouble with navigating through the tests, efficiently using tools, and implementing other self-regulatory behaviors that they often use when working on paper-based tests. This study indicates that more instructional time needs to be spent using computers, in order to teach students self-regulatory strategies that can help students to become more comfortable and adept with computer-based tests. With more explicit instruction, student growth on various assessments may increase

    Computer Self Efficacy, The Availability of Information Technology Facilities, And Accounting Student Attitude

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    This study aims to analyze the influence of the availability of information technology facilities, experience, and attitudes of accounting students in using computers to computer self-efficacy (CSE). The analytical tool used is lists the questionnaire lists the SPSS 16.0, data collection in the form of test validity and reliability testing. The hypothesis of this study is that there is the influence of the availability of information technology facilities, experience, and attitudes of accounting students in using computers to computer self-efficacy (CSE). To test this hypothesis used data analysis tools such as multiple linear regression. The results showed that the availability of information technology facilities influence on computer self-efficacy (CSE), the experience effect on computer self-efficacy (CSE), and the attitudes of students in using computer effect on computer self�efficacy (CSE) and the availability of information technology facilities, experience, and attitudes affect students in using computers simultaneously on computer self�efficacy (CSE)

    Exploring the factors that influence attitudes and achievement when students take computerized tests

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    Currently, a problem exists in K-12 education related to the use of technology for the assessment of student learning. Specifically, due to the lack of access to and infrequent use of computers for middle school students, the rise in the use of high stakes computer-based tests may negatively impact student test scores in poor, urban schools. The conceptual framework of this study was informed by Albert Bandura\u27s theory of self-efficacy, the work of The National Center for Fair and Open Testing regarding ending the misuses and flaws of standardized testing, and James Popham\u27s research on quality assessment. The central research question explored the influence of socioeconomic status, computer access/use, attitudes towards computers, and student achievement levels on computerized tests. This research study was a case study involving 2 charter schools in Michigan. The researcher assumed the role of a non-participant observer and was the primary source for data collection and analysis. The participants for this study were students in Grades 6, 7, and 8 at one suburban and one urban charter school. Multiple sources of evidence were collected, including observations, surveys, and documents. Data analysis was conducted at two levels: category construction was used to examine data for each single case, and a cross-case analysis was used to examine the data for patterns and themes, using the research questions as a guide. A key finding was that home computer access coupled with sole use had a positive influence on student achievement, a positive influence on self-perceptions of computer ability, and significantly influenced the amount of computer usage. Implications for positive social change in education were that practitioners would become aware of the negative effects of computerized testing and implement strategies to mitigate the negative effects

    Online and Offline BIST in IP-Core Design

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    This article presents an online and offline built-in self-test architecture implemented as an SRAM intellectual-property core for telecommunication applications. The architecture combines fault-latency reduction, code-based fault detection, and architecture-based fault avoidance to meet reliability constraint
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