EXERCISE PROGRAM AT SEACOAST YOUTH ACADEMY

Worldwide the prevalence of child obesity is increasing, this affects many aspect of their daily lives, including their overall health and quality of life. The purpose of this study was to discuss different options to prevent and combat adolescent obesity in children at an impatient health facility. This study included children living in an inpatient health facility, The Seacoast Youth center. A majority of these patients are on atypical medications for various reasons including psychiatric illnesses. An unfortunate side effect from atypical medications is weight gain. This study used a variety of different methods including muscular endurance and cardiovascular training in order to fight weight gain in the patients staying at the Seacoast center. Overall it was found that the exercise has a positive impact on the children’s mental and physical health. The study itself was difficult in task, due to insufficient materials, but overall a success. Based on feedback from children and staff at Seacoast, they were sleeping better, less moody, and had more energy all due to the exercise provided in this study

Small Zeros of Quadratic Forms Outside a Union of Varieties

Let be a quadratic form in variables defined on a vector space over a global field , and be a finite union of varieties defined by families of homogeneous polynomials over . We show that if contains a nontrivial zero of , then there exists a linearly independent collection of small-height zeros of in , where the height bound does not depend on the height of , only on the degrees of its defining polynomials. As a corollary of this result, we show that there exists a small-height maximal totally isotropic subspace of the quadratic space such that is not contained in . Our investigation extends previous results on small zeros of quadratic forms, including Cassels\u27 theorem and its various generalizations. The paper also contains an appendix with two variations of Siegel\u27s lemma. All bounds on height are explicit

Analysing olfactory and auditory sensescapes in English cities: Sensory expectation and urban environmental perception

Cet article analyse la manière dont les individus perçoivent une gamme variée de stimuli, notamment les sons et les odeurs émis par l’activité humaine, lors de leur déambulation dans les espaces publics des villes anglaises. La démonstration s’appuie sur deux études portant sur la déambulation sensorielle (sensewalking) menées entre 2004 et 2009 indépendamment l’une de l’autre mais avec un objectif identique. La première explore la perception de l’environnement olfactif, tandis que l’autre, s’attarde sur les expériences sonores urbaines. La comparaison des résultats montre que les expectations sensorielles modifient l’attitude des individus dans le milieu urbain en induisant des niveaux de signification et de compréhension variés. Par conséquent, il y a là un défi pour les architectes et les aménageurs de créer des milieux où la prise en compte de ces différents modes de perception pourrait conduire à des réponses plus adéquates. Si l’on convient que la perception (ou la non perception) des odeurs et des sons est fortement influencée par l’environnement, il est donc fondamental que le contexte initial soit prise en compte au moment de redéfinir et de gérer les aménagements sensoriels urbains.This paper examines the role of sensory expectation in people’s experiences and perceptions of a range of different urban environments in English towns and cities by focussing upon those related to smell and sound specifically. It draws from two separate but related sensewalking studies undertaken between 2004 and 2009: one exploring urban smell experiences, the other examining urban sound experiences. In drawing from, and comparing the findings of these two studies, sensory expectations are argued as highly influential in urban place experience and perception, providing different layers of meaning and understanding of place, and presenting challenges and opportunities for architects and urban designers when creating more human-centred places in the city. In addition, perceptions of the smells and sounds themselves are revealed as highly influenced by the environmental context within which they are, or are not, detected. As a result, the authors advocate a more proactive approach to the consideration of smells and sound information when designing and managing urban sensory environments

Benefits of phoneme discrimination training in a randomized controlled trial of 50- to 74-year-olds with mild hearing loss

Objectives: The aims of this study were to (i) evaluate the efficacy of phoneme discrimination training for hearing and cognitive abilities of adults aged 50 to 74 years with mild sensorineural hearing loss who were not users of hearing aids, and to (ii) determine participant compliance with a self-administered, computer-delivered, home- and game-based auditory training program. Design: This study was a randomized controlled trial with repeated measures and crossover design. Participants were trained and tested over an 8- to 12-week period. One group (Immediate Training) trained during weeks 1 and 4. A second waitlist group (Delayed Training) did no training during weeks 1 and 4, but then trained during weeks 5 and 8. On-task (phoneme discrimination) and transferable outcome measures (speech perception, cognition, self-report of hearing disability) for both groups were obtained during weeks 0, 4, and 8, and for the Delayed Training group only at week 12. Results: Robust phoneme discrimination learning was found for both groups, with the largest improvements in threshold shown for those with the poorest initial thresholds. Between weeks 1 and 4, the Immediate Training group showed moderate, significant improvements on self-report of hearing disability, divided attention, and working memory, specifically for conditions or situations that were more complex and therefore more challenging. Training did not result in consistent improvements in speech perception in noise. There was no evidence of any test-retest effects between weeks 1 and 4 for the Delayed Training group. Retention of benefit at 4 weeks post-training was shown for phoneme discrimination, divided attention, working memory, and self-report of hearing disability. Improved divided attention and reduced self-reported hearing difficulties were highly correlated. Conclusions: It was observed that phoneme discrimination training benefits some but not all people with mild hearing loss. Evidence presented here, together with that of other studies that used different training stimuli, suggests that auditory training may facilitate cognitive skills that index executive function and the self-perception of hearing difficulty in challenging situations. The development of cognitive skills may be more important than the development of sensory skills for improving communication and speech perception in everyday life. However, improvements were modest. Outcome measures need to be appropriately challenging to be sensitive to the effects of the relatively small amount of training performed

On-Demand Generation of Neutral and Negatively-Charged Silicon-Vacancy Centers in Diamond

Point defects in wide-bandgap semiconductors are emerging as versatile resources for nanoscale sensing and quantum information science but our understanding of the photo-ionization dynamics is presently incomplete. Here we use two-color confocal microscopy to investigate the dynamics of charge in Type 1b diamond hosting nitrogen-vacancy (NV) and silicon-vacancy (SiV) centers. By examining the non-local fluorescence patterns emerging from local laser excitation, we show that in the simultaneous presence of photo-generated electrons and holes, SiV (NV) centers selectively transform into the negative (neutral) charge state. Unlike NVs, 532 nm illumination ionizes SiV- via a single photon process thus hinting at a comparatively shallower ground state. In particular, slower ionization rates at longer wavelengths suggest the latter lies approximately ~1.9 eV below the conduction band minimum. Building on the above observations we demonstrate on-demand SiV and NV charge initialization over large areas via green laser illumination of variable intensity

Meshfree finite differences for vector Poisson and pressure Poisson equations with electric boundary conditions

We demonstrate how meshfree finite difference methods can be applied to solve vector Poisson problems with electric boundary conditions. In these, the tangential velocity and the incompressibility of the vector field are prescribed at the boundary. Even on irregular domains with only convex corners, canonical nodal-based finite elements may converge to the wrong solution due to a version of the Babuska paradox. In turn, straightforward meshfree finite differences converge to the true solution, and even high-order accuracy can be achieved in a simple fashion. The methodology is then extended to a specific pressure Poisson equation reformulation of the Navier-Stokes equations that possesses the same type of boundary conditions. The resulting numerical approach is second order accurate and allows for a simple switching between an explicit and implicit treatment of the viscosity terms.Comment: 19 pages, 7 figure

A force control algorithm for a wave energy linear test bed

Researchers at Oregon State University, focusing on the development of ocean wave energy converters, have designed and installed a unique linear test bed to aid in the characterization of these converters. Under the original control scheme, the linear test bed follows a position profile and is limited in its ability to replicate the forces a wave energy converter would experience in the ocean. To overcome these limitations, a force control algorithm has been developed to better simulate the hydrodynamic effects between an ocean wave and a wave energy converter device. This thesis presents the design and implementation of the force control algorithm on the linear test bed

Tracer concentration profiles measured in central London as part of the REPARTEE campaign

There have been relatively few tracer experiments carried out that have looked at vertical plume spread in urban areas. In this paper we present results from two tracer (cyclic perfluorocarbon) experiments carried out in 2006 and 2007 in central London centred on the BT Tower as part of the REPARTEE (Regent’s Park and Tower Environmental Experiment) campaign. The height of the tower gives a unique opportunity to study vertical dispersion profiles and transport times in central London. Vertical gradients are contrasted with the relevant Pasquill stability classes. Estimation of lateral advection and vertical mixing times are made and compared with previous measurements. Data are then compared with a simple operational dispersion model and contrasted with data taken in central London as part of the DAPPLE campaign. This correlates dosage with non-dimensionalised distance from source. Such analyses illustrate the feasibility of the use of these empirical correlations over these prescribed distances in central London

Experience with custom processors in space flight applications

The Applied Physics Laboratory (APL) has developed a magnetometer instrument for a swedish satellite named Freja with launch scheduled for August 1992 on a Chinese Long March rocket. The magnetometer controller utilized a custom microprocessor designed at APL with the Genesil silicon compiler. The processor evolved from our experience with an older bit-slice design and two prior single chip efforts. The architecture of our microprocessor greatly lowered software development costs because it was optimized to provide an interactive and extensible programming environment hosted by the target hardware. Radiation tolerance of the microprocessor was also tested and was adequate for Freja's mission -- 20 kRad(Si) total dose and very infrequent latch-up and single event upset events