35 research outputs found

    Functional Health Literacy, Invented Spellings, and MyPlate Representations of 2nd and 3rd Grade Children Learning about Breakfast Eating and Food Groups in Health Education

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    PURPOSE: We had three purposes for this study: 1) to introduce 2nd and 3rd grade children to the concepts of breakfast and food groups in the MyPlate nutrition model while using an interactive constructivist approach; 2) to evaluate what foods children ate for breakfast over two days and to assess the visual-textual-lexical representations that they constructed to show their thinking about the MyPlate food model; and 3) to explore functional health literacy and inventive spellings from children who learned about food groups over two class sessions. METHODS: Pre to post student assessments focused on self-reported breakfast eating and ability to represent the MyPlate food model during the learning process. Student thinking about those topics were also elicited by multimodal approaches: oral language (conversations), written language (visual-textual-lexical illustrations), and body language (making nutritious snacks). For the latter, students constructed a snack to eat on both days at school and were encouraged to make the food at home to model nutritious eating behavior. RESULTS: Most children who participated in the lesson ate breakfast either at home or at school. Some students chose to communicate in words and pictures when asked to write about the foods they ate for breakfast. Many students illustrated and labeled food groups by drawing and using inventive spellings about their early understandings of the MyPlate food model. From the first to the second day of instruction, breakfasts with three food groups increased from 3% to 7% but breakfasts with two food groups declined from 55% to 41% due to more children (n = 60) eating breakfasts with only one food group on the second day. CONCLUSIONS: Some of the food items that students ate were not sufficient to produce an adequate nutritional benefit. The constructivist pedagogical approach assisted children with multimodal ways to communicate their understanding, including making two different snacks when planning a breakfast with multiple food groups. Functional health knowledge about a nutritious breakfast made with three food groups should be further aligned with functional health literacy skills of speaking and writing in multimodal ways in order to improve health behaviors. Inventive spellings demonstrated a developmental step in learning a vocabulary in a new domain. Use of written words and pictures reflected a positive way to learn health and nutrition, because children represented their understanding in more than one way. RECOMMENDATIONS: By adding fruit to the breakfasts of children who participated in the lessons, almost one-half of the children would be able to increase their consumption from two food groups to three food groups when consuming an ideal breakfast. Future work should elaborate on the role of interactive health literacy in school and home contexts when children are learning about breakfast eating and food groups. Future integration of the MyPlate food model with the National Health Education Standards can foster new classroom assessments that will support students to practice observable nutrition behaviors that can lead to consistent health habits for personal, family, and school health

    Reference Capabilities for Flexible Memory Management: Extended Version

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    Verona is a concurrent object-oriented programming language that organises all the objects in a program into a forest of isolated regions. Memory is managed locally for each region, so programmers can control a program's memory use by adjusting objects' partition into regions, and by setting each region's memory management strategy. A thread can only mutate (allocate, deallocate) objects within one active region -- its "window of mutability". Memory management costs are localised to the active region, ensuring overheads can be predicted and controlled. Moving the mutability window between regions is explicit, so code can be executed wherever it is required, yet programs remain in control of memory use. An ownership type system based on reference capabilities enforces region isolation, controlling aliasing within and between regions, yet supporting objects moving between regions and threads. Data accesses never need expensive atomic operations, and are always thread-safe.Comment: 87 pages, 10 figures, 5 listings, 4 tables. Extended version of paper to be published at OOPSLA 202

    Black gold: trustworthiness in artistic research (seen from the sidelines of arts and health)

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    Rigour plays a central role in contemporary research culture. But how appropriate a concept is it to think, perform, and make judgements with on what is trustworthy and excellent in artistic research and its neighbouring field of arts and health? The historical meanings of rigour suggest severity and rigidity: straight lines, austere habits, privations. As a word, rigour has a mixed ancestry – French, Latin, Middle English. Some of its earliest uses coincide with a feudal system of government in Europe, with rigge [verb] meaning to plough a straight line in a narrow strip, and rig [verb] to provide a straight ridge to a house. Rig [noun] a derivation of ridge, was used in England five hundred years ago of human and animal backbones, perhaps reflecting everyday physical burdens. Rigours [noun] conveyed the meting out of un-cautioned punishments and cruelty. While the temperament of rigour might be appropriate for research that follows pre-set norms and standards of repeatability, its use to judge what is trustworthy in artistic research is questionable. Though artistic researchers need to understand the rigour concept, by contrast, artistic research as a kind of ‘thinking through making’ (Ravetz, 2011, 159; Ingold, 2013, 6), places value on improvisation, chance encounter, unforeseen admixture and the in- and outward- folding of process, affect and material. Once it is accepted that poiesis is part of the research process (Ingold, 2013; Haraway, 2016), it becomes apparent that artistic research cannot easily accommodate straight backed rigour

    Comparative Genomics of the Apicomplexan Parasites Toxoplasma gondii and Neospora caninum: Coccidia Differing in Host Range and Transmission Strategy

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    Toxoplasma gondii is a zoonotic protozoan parasite which infects nearly one third of the human population and is found in an extraordinary range of vertebrate hosts. Its epidemiology depends heavily on horizontal transmission, especially between rodents and its definitive host, the cat. Neospora caninum is a recently discovered close relative of Toxoplasma, whose definitive host is the dog. Both species are tissue-dwelling Coccidia and members of the phylum Apicomplexa; they share many common features, but Neospora neither infects humans nor shares the same wide host range as Toxoplasma, rather it shows a striking preference for highly efficient vertical transmission in cattle. These species therefore provide a remarkable opportunity to investigate mechanisms of host restriction, transmission strategies, virulence and zoonotic potential. We sequenced the genome of N. caninum and transcriptomes of the invasive stage of both species, undertaking an extensive comparative genomics and transcriptomics analysis. We estimate that these organisms diverged from their common ancestor around 28 million years ago and find that both genomes and gene expression are remarkably conserved. However, in N. caninum we identified an unexpected expansion of surface antigen gene families and the divergence of secreted virulence factors, including rhoptry kinases. Specifically we show that the rhoptry kinase ROP18 is pseudogenised in N. caninum and that, as a possible consequence, Neospora is unable to phosphorylate host immunity-related GTPases, as Toxoplasma does. This defense strategy is thought to be key to virulence in Toxoplasma. We conclude that the ecological niches occupied by these species are influenced by a relatively small number of gene products which operate at the host-parasite interface and that the dominance of vertical transmission in N. caninum may be associated with the evolution of reduced virulence in this species

    Solve-RD: systematic pan-European data sharing and collaborative analysis to solve rare diseases.

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    For the first time in Europe hundreds of rare disease (RD) experts team up to actively share and jointly analyse existing patient's data. Solve-RD is a Horizon 2020-supported EU flagship project bringing together >300 clinicians, scientists, and patient representatives of 51 sites from 15 countries. Solve-RD is built upon a core group of four European Reference Networks (ERNs; ERN-ITHACA, ERN-RND, ERN-Euro NMD, ERN-GENTURIS) which annually see more than 270,000 RD patients with respective pathologies. The main ambition is to solve unsolved rare diseases for which a molecular cause is not yet known. This is achieved through an innovative clinical research environment that introduces novel ways to organise expertise and data. Two major approaches are being pursued (i) massive data re-analysis of >19,000 unsolved rare disease patients and (ii) novel combined -omics approaches. The minimum requirement to be eligible for the analysis activities is an inconclusive exome that can be shared with controlled access. The first preliminary data re-analysis has already diagnosed 255 cases form 8393 exomes/genome datasets. This unprecedented degree of collaboration focused on sharing of data and expertise shall identify many new disease genes and enable diagnosis of many so far undiagnosed patients from all over Europe

    Solving unsolved rare neurological diseases-a Solve-RD viewpoint.

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    Funder: Durch Princess Beatrix Muscle Fund Durch Speeren voor Spieren Muscle FundFunder: University of Tübingen Medical Faculty PATE programFunder: European Reference Network for Rare Neurological Diseases | 739510Funder: European Joint Program on Rare Diseases (EJP-RD COFUND-EJP) | 44140962

    Twist exome capture allows for lower average sequence coverage in clinical exome sequencing

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    Background Exome and genome sequencing are the predominant techniques in the diagnosis and research of genetic disorders. Sufficient, uniform and reproducible/consistent sequence coverage is a main determinant for the sensitivity to detect single-nucleotide (SNVs) and copy number variants (CNVs). Here we compared the ability to obtain comprehensive exome coverage for recent exome capture kits and genome sequencing techniques. Results We compared three different widely used enrichment kits (Agilent SureSelect Human All Exon V5, Agilent SureSelect Human All Exon V7 and Twist Bioscience) as well as short-read and long-read WGS. We show that the Twist exome capture significantly improves complete coverage and coverage uniformity across coding regions compared to other exome capture kits. Twist performance is comparable to that of both short- and long-read whole genome sequencing. Additionally, we show that even at a reduced average coverage of 70× there is only minimal loss in sensitivity for SNV and CNV detection. Conclusion We conclude that exome sequencing with Twist represents a significant improvement and could be performed at lower sequence coverage compared to other exome capture techniques
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