5,476 research outputs found
Feasibility study of asset mapping with children: Identifying how the community environment shapes activity and food choices in Alexander First Nation
No full textIntroduction: It is estimated that First Nations children living on reserves are 4.5 times more likely to be obese than Canadian children in general. Many First Nations children living on reserves have limited healthy food and physical activity options. Understanding how community factors contribute to First Nations children’s lifestyle choices is an understudied area of research. Furthermore, rarely has health research elicited First Nations children’s perspectives of their communities. The purpose of this study was to understand the external behavior-shaping factors that influence the lifestyle behaviors of First Nations’ children. Asset mapping with children was used to understand how community resources impacted children’s activity and eating options. Methods: Alexander First Nation is in central Alberta. Asset mapping was one component of a research project in the community to identify risk factors for children developing diabetes. Participants were a convenience sample of two high school students working at the local health centre and seven grade six children. Maps, photographs, and a tour of the town site enabled participants to identify places and spaces where they were active or could obtain food. For each of these assets, a description of how it was used and how it could be modified for better usage was derived from notes and transcripts using content analysis. Assets were grouped into usage categories, which were then mapped onto a layout of the community and presented at a community meeting to address childhood obesity. Results: Twenty-five places and spaces were identified as being activity or food related. Breakfast and/or lunch, concession foods (snack foods, eg chocolate bars, potato crisps) were obtained at school; meals and snack foods where cultural gatherings occur; and snack foods at the local store. Healthy food choices were limited. Children and youth were active at different locations in town, with only two spaces beyond the town site identified as locations for activity. Youth recommended the construction of a leisure centre, that healthier food be sold at the local convenience store, and the development of a community garden and berry farm. Conclusions: In the ecological framework, weight status is considered embedded within the larger ecology of individual lives because of interrelationships between an individual's personal dimensions and other components of an individual’s external environment. Asset mapping with children and youth in Alexander First Nation helped to achieve an understanding of the community factors that shaped their health behaviors. Asset mapping not only produced a list of places and spaces where they played, met, and ate, but also showed where they most preferred to be. Further, the exercise enabled children to express how assets could be improved, and the assets they would like in their community, to promote healthy behaviors. The findings enabled adults to contextualize other community data collected about children (ie obesity prevalence, physical activity levels), to better understand how the presence and the condition of places and spaces in the community shaped the physical activity and eating behaviors of children and youth, and how local resources could be modified to be more health promoting
Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
No full textKamanli, Seyit A., Morritt, David, Ball, Alexander D., Goral, Tomasz, Clark, Paul F. (2018): Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy. Zootaxa 4507 (1): 1-67, DOI: https://doi.org/10.11646/zootaxa.4507.1.
Some dynamical properties of a classical dissipative bouncing ball model with two nonlinearities
No full textSome dynamical properties for a bouncing ball model are studied. We show that when dissipation is introduced the structure of the phase space is changed and attractors appear. Increasing the amount of dissipation, the edges of the basins of attraction of an attracting fixed point touch the chaotic attractor. Consequently the chaotic attractor and its basin of attraction are destroyed given place to a transient described by a power law with exponent -2. The parameter-space is also studied and we show that it presents a rich structure with infinite self-similar structures of shrimp-shape. © 2013 Elsevier B.V. All rights reserved.Institute for Multiscale Simulation Friedrich Alexander Universität Erlangen-Nürnberg, Naegelsbachstrasse 49b, D-91052-ErlangenCAMTP - Center for Applied Mathematics and Theoretical Physics University of Maribor, Krekova 2, SI-2000-MariborDepartamento de Física Universidade Estadual Paulista (UNESP), Av. 24A, 1515-13506-900-Rio Claro, SPDepartamento de Física Universidade Estadual Paulista (UNESP), Av. 24A, 1515-13506-900-Rio Claro, S
1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+)
No full textComplete Author List:
ACOSTA D, ATHANAS M, MASEK G, PAAR H, BEAN A, GRONBERG J, KUTSCHKE R, MENARY S, MORRISON RJ, NAKANISHI S, NELSON HN, NELSON TK, RICHMAN JD, RYD A, TAJIMA H, SCHMIDT D, SPERKA D, WITHERELL MS, PROCARIO M, YANG S, BALEST R, CHO K, DAOUDI M, FORD WT, JOHNSON DR, LINGEL K, LOHNER M, RANKIN P, SMITH JG, ALEXANDER JP, BEBEK C, BERKELMAN K, BESSON D, BROWDER TE, CASSEL DG, CHO HA, COFFMAN DM, DRELL PS, EHRLICH R, GALIK RS, GARCIASCIVERES M, GEISER B, GITTELMAN B, GRAY SW, HARTILL DL, HELTSLEY BK, JONES CD, JONES SL, KANDASWAMY J, KATAYAMA N, KIM PC, KREINICK DL, LUDWIG GS, MASUI J, MEVISSEN J, MISTRY NB, NG CR, NORDBERG E, OGG M, PATTERSON JR, PETERSON D, RILEY D, SALMAN S, SAPPER M, WORDEN H, WURTHWEIN F, AVERY P, FREYBERGER A, RODRIGUEZ J, STEPHENS R, YELTON J, CINABRO D, HENDERSON S, KINOSHITA K, LIU T, SAULNIER M, SHEN F, WILSON R, YAMAMOTO H, ONG B, SELEN M, SADOFF AJ, AMMAR R, BALL S, BARINGER P, COPPAGE D, COPTY N, DAVIS R, HANCOCK N, KELLY M, KWAK N, LAM H, KUBOTA Y, LATTERY M, NELSON JK, PATTON S, PERTICONE D, POLING R, SAVINOV V, SCHRENK S, WANG R, ALAM MS, KIM IJ, NEMATI B, ONEILL JJ, SEVERINI H, SUN CR, ZOELLER MM, CRAWFORD G, DAUBENMIER CM, FULTON R, FUJINO D, GAN KK, HONSCHEID K, KAGAN H, KASS R, LEE J, MALCHOW R, MORROW F, SKOVPEN Y, SUNG M, WHITE C, WHITMORE J, WILSON P, BUTLER F, FU X, KALBFLEISCH G, LAMBRECHT M, ROSS WR, SKUBIC P, SNOW J, WANG PL, WOOD M, BORTOLETTO D, BROWN DN, FAST J, MCILWAIN RL, MIAO T, MILLER DH, MODESITT M, SCHAFFNER SF, SHIBATA EI, SHIPSEY IPJ, WANG PN, BATTLE M, ERNST J, KROHA H, ROBERTS S, SPARKS K, THORNDIKE EH, WANG CH, DOMINICK J, SANGHERA S, SHELKOV V, SKWARNICKI T, STROYNOWSKI R, VOLOBOUEV I, ZADOROZHNY P, ARTUSO M, HE D, GOLDBERG M, HORWITZ N, KENNETT R, MONETI GC, MUHEIM F, MUKHIN Y, PLAYFER S, ROZEN Y, STONE S, THULASIDAS M, VASSEUR G, ZHU G, BARTELT J, CSORNA SE, EGYED Z, JAIN V, SHELDON P, AKERIB DS, BARISH B, CHADHA M, CHAN S, COWEN DF, EIGEN G, MILLER JS, OGRADY C, URHEIM J, WEINSTEIN A
Fiber tracking in q-ball fields using regularized particle trajectories
No full textMost of the approaches dedicated to fiber tracking from diffusion-weighted MR data rely on a tensor model. However, the tensor model can only resolve a single fiber orientation within each imaging voxel. New emerging approaches have been proposed to obtain a better representation of the diffusion process occurring in fiber crossing. In this paper, we adapt a tracking algorithm to the q-ball representation, which results from a spherical Radon transform of high angular resolution data. This algorithm is based on a Monte-Carlo strategy, using regularized particle trajectories to sample the white matter geometry. The method is validated using a phantom of bundle crossing made up of haemodialysis fibers. The method is also applied to the detection of the auditory tract in three human subjects
DISTRIBUTION OF INTEGER LATTICE POINTS IN A BALL CENTRED AT A DIOPHANTINE POINT
No full textWe study the variance of the fluctuations in the number of lattice points in a ball and in a thin spherical shell of large radius centred at a Diophantine point
FIGURE 53 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
No full textFIGURE 53. An example measurement of dorsal, lateral and rostral spines using a ZI stage of Cancer magister (adapted from Shirley et al. 1987).Published as part of Kamanli, Seyit A., Morritt, David, Ball, Alexander D., Goral, Tomasz & Clark, Paul F., 2018, Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy, pp. 1-67 in Zootaxa 4507 (1) on page 65, DOI: 10.11646/zootaxa.4507.1.1, http://zenodo.org/record/371378
Preservice Teachers' Development of Effective Approaches to Text-based Discussion
No full textText-based discussion is a dialogic instructional practice to promote reading comprehension among students. To enact this practice, a teacher engages students in authentic conversation about text as students read it, to assist them in building understanding of text ideas as they are encountered. Text-based discussion has the potential to promote the development of both low-level and high-level comprehension skills among students, yet teachers need support in learning to enact it. Research has indicated that text-based discussion is not well-represented in classrooms today, likely because not many teachers have access to this support.
Recently, some teacher educators have focused on teaching preservice teachers (PSTs) to enact text-based discussions during teacher preparation programs, in an attempt to increase the presence of the practice in classrooms. Practice-based methods courses have been developed which attempt to provide preservice teachers with the knowledge and skill needed to enact text-based discussions successfully. This study investigated the ways in which six preservice teachers’ enactments of text-based discussion developed over the course of their one-year student teaching placements, after completing one such methods course in which they learned to enact the practice.
Data were collected at three time points during student teaching, and included transcripts of enactments of text-based discussion, lesson plans, interview transcripts, and assessments of lesson quality using the Instructional Quality Instrument (Junker et al., 2004). Analysis of the data suggested that the PSTs entered student teaching with the ability to enact text-based discussions with a moderate level of success, and that the quality of the discussions continued to improve over the course of the school year. The methods course seemed to support PSTs in learning to link student comments and press students for accuracy and reasoning. PSTs were more successful in eliciting student linking and recall of explicit text information than in eliciting elaborated responses from students; the participation structure enforced by the PST seemed to influence the extent to which students provided elaborated responses. This study supports the use of practice-based methods courses to teach PSTs to enact text-based discussions, and uncovers several areas that are in need of additional focus during these courses
Ball Packings with Periodic Constraints
No full textWe call a periodic ball packing in d-dimensional Euclidean space periodically (resp. strictly) jammed with respect to a period lattice Λ if there are no nontrivial motions of the balls that preserve Λ (resp. that maintain some period with smaller or equal volume). In particular, we call a packing consistently periodically jammed (resp. consistently strictly jammed) if it is periodically (resp. strictly) jammed on every one of its periods. After extending a well-known bar framework and stress condition to strict jamming, we prove that a packing with period Λ is consistently strictly jammed if and only if it is strictly jammed with respect to Λ and consistently periodically jammed. We next extend a result about rigid unit mode spectra in crystallography to characterize periodic jamming on sublattices. After that, we prove that there are finitely many strictly jammed packings of m unit balls and other similar results. An interesting example shows that the size of the first sublattice on which a packing is first periodically unjammed is not bounded. Finally, we find an example of a consistently periodically jammed packing of low density δ=4π/6√3+11+ε≈0.59, where ε is an arbitrarily small positive number. Throughout the paper, the statements for the closely related notions of periodic infinitesimal rigidity and affine infinitesimal rigidity for tensegrity frameworks are also given.National Science Foundation (U.S.) (Cornell University. Research Experience for Undergraduates. Grant DMS-1156350
The Intersection of Legal Education and Delivery of Legal Services to the Needy: The Role of Clinical Education (Part 3)
No full textA forum presented as part of the Law Day 1994 activities. Panelists included: Alexander D. Forger, Moderator, President of the Legal Service Corporation Milner Ball, Harmon W. Caldwell Professor of Law, UGA Patricia Barron, Regional Director, Georgia Legal Service Program Eleanor Crosby, Elder Law Specialist, American Association of Retired Persons Steve Gottlieb, Director, Atlanta Legal Aid Society Julian McDonnell, John A Sibley Professor of Law, UGA Dorothy Murphy, Child Advocate Attorney, DeKalb County Juvenile Court Edward Spurgeon, Dean and Professor of Law, UG
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