14,485 research outputs found

    Finding Relevance, Competence, and Enjoyment: The Development of Domain Identification and Interest in First-Year Science Majors

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    The purpose of this qualitative study was to examine how first-year college students perceive their development of domain identification with, and interest in, their prospective science major during their initial year of college. Four themes emerged from the coding and analysis of interviews with eight first-year science students: Self-Definition in Flux, Feeling Competent, Expressing Interest through Enjoyment, and Relevant to Me. These themes were mainly consistent with the current model of domain identification (Osborne & Jones, 2011) but differ from the current model of interest development (Hidi & Renninger, 2006). Theoretical and practical implications are included for faculty and advisors working with first-year science students

    Tone in Lagwan verbs: the conflict between perceptual prominence and lexical contrast

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    The Navigation Servitude: Post Kaiser-Aetna Confusion

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    Resistivity and Hall measurements of thermoelectric materials

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    Instrumentation setup measures resistivity values between .000003 and 100,000 ohm-cm and Hall values between 0.2 and 10 billion cc/coulomb, with an absolute error of less than 5 percent. Results of measurement are given for 8 electrical brush specimens and pure silver

    Understanding Mathematics and Science Advice Networks of Middle School Teachers

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    We report findings from a research project designed to examine the mathematics and science advice networks of teachers who participated in professional development under the auspices of the NSF-funded Rocky Mountain-Middle School Math and Science Partnership. We provide descriptive statistics of results. Additionally, we reflect on the research process and discuss some of the practical challenges involved

    Attentional preparation for a lateralized visual distractor: Behavioral and fMRI evidence

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    Attending to the location of all expected visual target call lead to anticipatory activations In spatiotopic occipital cortex, emerging before target onset. But less is known about how the brain may prepare for a distractor at a known location remote from the target. In a psychophysical experiment, we found that trial-to-trial advance knowledge about the presence of a distractor in the target-opposite hemifield significantly reduced its behavioral cost. In a subsequent functional magnetic resonance imaging experiment with similar task and stimuli, We found anticipatory activations in the occipital cortex contralateral to the expected distractor, but no additional target modulation, when participants were given advance information about a distractor's subsequent presence and location, Several attention-related control structures (frontal eye fields and superior parietal cortex) were active during attentional preparation for all trials, whereas the left superior prefrontal and right angular gyri were additionally activated when a distractor Was anticipated. The right temporoparietal junction showed stronger functional Coupling with occipital regions during preparation for trials with all isolated tat-get than for trials with a distractor expected. These results show that anticipation of a visual distractor at a known location, remote from the target, call lead to (1) a reduction in the behavioral cost of that distractor, (2) preparatory Modulation of the occipital cortex contralateral to the location of the expected distractor, and (3) anticipatory activation of distinct parietal and frontal brain structures. These findings indicate that specific components of preparatory visual attention may be devoted to minimizing the impact of distractors, not just to enhancements of target processing

    Determination of resistivity and Hall coefficient of semiconducting materials between 80 deg K and 375 deg K

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    Determination of resistivity and Hall coefficient of semiconductor material
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