8,568 research outputs found

    Advanced study of video signal processing in low signal to noise environments Semiannual progress report, Jun. - Nov. 1970

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    Video signal processing in low signal to noise environments - bandpass filter in multi-filter phase lock loo

    Making color infrared film a more effective high altitude sensor

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    Infrared color film for remote sensors at high altitude

    A system of regional agricultural land use mapping tested against small scale Apollo 9 color infrared photography of the Imperial Valley (California)

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    System of regional agricultural land use mapping tested against Apollo 9 color infrared photography of Imperial Valley, Calif

    Changes In Teacher Thinking And Action In Response To The Next Generation Science Standards

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    This study examined the role of K-12 science teachers’ understandings and perceptions of the Next Generation Science Standards, implementation of the new standards in the classroom, and potential barriers to implementation as reform stakeholders had envisioned. Grounded in the relevant literature and working from the Teacher-Centered System Reform framework, this study employed a quantitative approach to data collection. The TCSR Model framed this study by linking teachers’ demographic and professional profile, teaching experience, professional development, district-level, school-level, and classroom-level contexts and illuminates the dynamic effect the factors have on teachers’ thinking and their practice. The study recognizes teachers’ knowledge and beliefs, their personal backgrounds, and the contextual factors that influence their practices and provides a context for improvement built from the interrelatedness of the varying perspectives of reform

    Cue the Paralinguistics: A Qualitative Case Study of Teacher Social Presence

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    The purpose of this qualitative case study was to understand teachers’ rationale and practices as they establish a social presence in a 100% online learning environment in a high school setting, with a specific emphasis on paralinguistic cues and symbols, such as emoji, emoticons, and Bitmoji. This case study focused on the meaning and understanding of teacher social presence in the virtual setting, utilizing a variety of data collection methods. In-depth interviews were conducted, followed by digital document collection and a focus group interview; transcripts of both interviews and the focus group were analyzed in order to establish the specific practices teachers use to establish a social presence as well as their rationales. Specific emphasis was placed on paralinguistic cues and their role in the establishment of social presence. Findings supported previous research on social presence strategies with few exceptions. Online educators rely on strategies that humanize their virtual interactions with special consideration for tone in written communication, particularly considering the age of high school students. Paralinguistic cues were widely used, with Bitmojis used universally by all participants as a visual extension of their physical selves in computer-mediated communication. Suggestions for future research, practice, and teacher education are included

    North Carolina\u27s South African Divestment Statute

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    Collaboration, Pedagogy, and Media: Short-Term Summer Program Emphasizes Project Based and Social-Emotional Learning.

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    This article purports the idea that summer programs that experiment with media literacy and social-emotional learning could potentially affect students’ academic performance. Based on a six-week program, working with rising eighth grade students in a low-income school district, this program allowed students to work on media projects while trying to develop stronger capacities of self-awareness, positive decision-making, and stronger relationship development. The article intends to offer practitioners in media studies and pedagogy, insight of how to implement social and emotional learning into media classrooms

    Influences of Display Design and Task Management Strategy on Situation Awareness, Performance, and Workload in Process Control Environments

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    Process control environments demand well informed high performing human monitors to maintain effectual control of multiple processes. Most research aims to satisfy this requirement through the evaluation of competing heuristic-based display design constructs. Contrary to that method, this study takes a novel approach by examining both factors internal and external to the human observer to identify where beneficial outcomes actually reside. External factors explore the underlying design construct attributes, while internal factors focus on the effect of operator task management strategy, age, and experience. Results from this study present several key findings relative to operator situation awareness, performance, and workload. Findings suggest the specific manner in which external information is presented and oriented on a process control room display is inconsequential toward situation awareness and performance. Further, operator preferred task management strategy has a profound effect on their performance and experienced workload, while exhibiting only a mild effect on situation awareness. In most cases, an Adaptive Attack strategy produces desirable results, while an Adaptive Avoidance does not. Interleaving and Multitasking fall between these two extremes. Lastly, findings indicate subject variables, age and experience have negative effects on overall situation awareness and system deviation prediction times
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