67 research outputs found

    Project High Hopes Summer Institute: Curriculum for Developing Talent in Students with Special Needs

    Get PDF
    This article examines a summer institute curriculum that was developed for and used with handicapped students who were identified as gifted in the area(s) of visual arts, performing arts, engineering, or life sciences. The students and the summer institute were part of a federally funded Javits program, Project High Hopes. The curriculum was real world, multi-disciplinary and problem based in that it used a decaying water feature on the school grounds as its focus. Using a creative problem solving process, students identified problems with the water feature, developed solutions, created presentations, and presented their solutions to the school board. Student products are described as are conclusions, results and possible implications for other educational settings

    Compensation Strategies Used by High-Ability Students With Learning Disabilities Who Succeed In College

    Get PDF
    To investigate how high-ability students With learning disabilities succeed in postsecondary academic environments, 12 young adults with disabilities who were successful at the university level were studied. Extensive interviews with these young adults provided examples of the problems faced by high-ability students with learning disabilities, as well as the specific compensation strategies the used to address and overcome these problems. Four of the participants had been identified as having a learning disability in elementary school; six were identified in junior or senior high school; and two were not diagnosed until college. The participants believed that having a learning disability was considered by elementary or secondary school personnel as synonymous with below-average ability. They reported that content remediation, rather than instruction in compensatory strategies, was usually provided in elementary and secondary school learning disability programs. In this article, the compensation strategies used by academically gifted students who succeeded in college are discussed. These include: study strategies, cognitive/learning strategies. compensatory supports, environmental accommodations, opportunities for counseling, self-advocacy, and the development of an individual plan incorporating a focus on metacognition and executive functions

    Stratospheric aerosol - Observations, processes, and impact on climate

    Get PDF
    Interest in stratospheric aerosol and its role in climate have increased over the last decade due to the observed increase in stratospheric aerosol since 2000 and the potential for changes in the sulfur cycle induced by climate change. This review provides an overview about the advances in stratospheric aerosol research since the last comprehensive assessment of stratospheric aerosol was published in 2006. A crucial development since 2006 is the substantial improvement in the agreement between in situ and space-based inferences of stratospheric aerosol properties during volcanically quiescent periods. Furthermore, new measurement systems and techniques, both in situ and space based, have been developed for measuring physical aerosol properties with greater accuracy and for characterizing aerosol composition. However, these changes induce challenges to constructing a long-term stratospheric aerosol climatology. Currently, changes in stratospheric aerosol levels less than 20% cannot be confidently quantified. The volcanic signals tend to mask any nonvolcanically driven change, making them difficult to understand. While the role of carbonyl sulfide as a substantial and relatively constant source of stratospheric sulfur has been confirmed by new observations and model simulations, large uncertainties remain with respect to the contribution from anthropogenic sulfur dioxide emissions. New evidence has been provided that stratospheric aerosol can also contain small amounts of nonsulfate matter such as black carbon and organics. Chemistry-climate models have substantially increased in quantity and sophistication. In many models the implementation of stratospheric aerosol processes is coupled to radiation and/or stratospheric chemistry modules to account for relevant feedback processes

    Publisher Correction: Demonstration of reduced neoclassical energy transport in Wendelstein 7-X

    Get PDF

    Demonstration of reduced neoclassical energy transport in Wendelstein 7-X

    Get PDF

    Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X

    Get PDF

    Interpretative and predictive modelling of Joint European Torus collisionality scans

    Get PDF
    Transport modelling of Joint European Torus (JET) dimensionless collisionality scaling experiments in various operational scenarios is presented. Interpretative simulations at a fixed radial position are combined with predictive JETTO simulations of temperatures and densities, using the TGLF transport model. The model includes electromagnetic effects and collisions as well as □(→┬E ) X □(→┬B ) shear in Miller geometry. Focus is on particle transport and the role of the neutral beam injection (NBI) particle source for the density peaking. The experimental 3-point collisionality scans include L-mode, and H-mode (D and H and higher beta D plasma) plasmas in a total of 12 discharges. Experimental results presented in (Tala et al 2017 44th EPS Conf.) indicate that for the H-mode scans, the NBI particle source plays an important role for the density peaking, whereas for the L-mode scan, the influence of the particle source is small. In general, both the interpretative and predictive transport simulations support the experimental conclusions on the role of the NBI particle source for the 12 JET discharges

    The genetic architecture of the human cerebral cortex

    Get PDF
    The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder

    Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X

    Get PDF
    We present recent highlights from the most recent operation phases of Wendelstein 7-X, the most advanced stellarator in the world. Stable detachment with good particle exhaust, low impurity content, and energy confinement times exceeding 100 ms, have been maintained for tens of seconds. Pellet fueling allows for plasma phases with reduced ion-temperature-gradient turbulence, and during such phases, the overall confinement is so good (energy confinement times often exceeding 200 ms) that the attained density and temperature profiles would not have been possible in less optimized devices, since they would have had neoclassical transport losses exceeding the heating applied in W7-X. This provides proof that the reduction of neoclassical transport through magnetic field optimization is successful. W7-X plasmas generally show good impurity screening and high plasma purity, but there is evidence of longer impurity confinement times during turbulence-suppressed phases.EC/H2020/633053/EU/Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium/ EUROfusio
    corecore