279 research outputs found
Teaching visual arts through distance education : an evaluation of the program Anyone can draw
The problem under investigation is concerned with the teaching of drawing through distance education. Traditionally drawing has occupied a central position in visual art teaching and learning and is still regarded as a significant area of visual arts education. In the visual arts curriculum of Western Australia, drawing, which is included in the broader term visual inquiry, is regarded as the foundation for studio practice. It is therefore appropriate to include drawing as part of every visual arts teaching program. The correspondence mode of teaching, which has a text-base, is a more formal style of teaching art than the responsive teaching that normally occurs in an art class. Through distance education it is difficult to encourage drawing skills either through remediation or extension without creating a burden of extra work for the students. This is due to the design of the course booklets in projects which schedule the drawing lesson as one of many the student is required to complete in a semester. The projects culminate in a final studio product, thus emphasising that drawing remains a step towards the product
Teaching âExcellenceâ and pedagogic stratification in higher education
This paper discusses how dominant discourses of neoliberalism intersect with teaching and learning practices, and considers the implications of this for both widening participation goals and for social equity agendas in higher education. Drawing on the concept of âpedagogic stratificationâ we examine the discourses of âteaching excellenceâ, as these are enacted in interviews with senior academics across 11 universities in England. We describe how the pervasive discourses of neoliberalism prioritise market-oriented objectives, inciting university leaders to evidence âworld-classâ teaching through rigid assessment frameworks. Engaging a Foucauldian analysis, we discuss how a discourse of âteaching excellenceâ can function as a âregime of truthâ that operates to discipline (institutional and individual) practices and subjectivities, restricting conceptions of teaching, and limiting opportunities for critical pedagogies. We argue that the neoliberal discourses of teaching excellence identified in our analysis resonate across an increasingly globalised and marketised international higher education landscape and are enacted in tension with widening participation and equity goals not only in England but also more widely
Coinfinder: Detecting significant associations and dissociations in pangenomes
© 2020 The Authors. The accessory genes of prokaryote and eukaryote pangenomes accumulate by horizontal gene transfer, differential gene loss, and the effects of selection and drift. We have developed Coinfinder, a software program that assesses whether sets of homolo-gous genes (gene families) in pangenomes associate or dissociate with each other (i.e. are âcoincidentâ) more often than would be expected by chance. Coinfinder employs a user-supplied phylogenetic tree in order to assess the lineage-dependence (i.e. the phylogenetic distribution) of each accessory gene, allowing Coinfinder to focus on coincident gene pairs whose joint presence is not simply because they happened to appear in the same clade, but rather that they tend to appear together more often than expected across the phylogeny. Coinfinder is implemented in C++, Python3 and R and is freely available under the GNU license from https://âgithub.âcom/âfwhelan/âcoinfinder
Pedagogic stratification and the shifting landscape of higher education
This report presents research funded by the Higher Education Academy as part of its open call that looks at âThe impact of the shifting UK HE landscape on learning and teachingâ
Influenza in long-term Dutch travelers in the tropics: Symptoms and infections
Background: Influenza is a common infection among travelers, and attack rates are well documented in short-term travelers and holiday makers. Little data exists on long-term, non-expatriate travelers. Methods: This was a prospective mono-centre study of immunocompetent, Dutch travelers aged â„18 to 64 years. It was conducted at the Public Health Service travel clinic in Amsterdam from December 2008 to September 2011, and included all travelers intending to travel to a tropical or sub-tropical country. Results: Among 602 Dutch long-term travelers to tropical regions, 82 % had protective influenza antibody titres pre-travel. The influenza attack rate of serologically confirmed infection during travel was 15 %, and of symptomatic infection was 6.3 % (fever alone) and 2 % (ILI), respectively. Conclusions: The attack rate in this study is similar to seasonal rates of infection in the general population. Influenza vaccination pre-travel is therefore most important for people at risk of medical complications due to influenza
Dietary intake of inulin-type fructans in active and inactive Crohnâs disease and healthy controls: a case-control study
Background and Aims: Prebiotic inulin-type fructans are widely consumed in the diet and may have contrasting effects in Crohnâs disease by stimulating gut microbiota and/or by generating functional gastrointestinal symptoms. The aim of this study was to measure fructan and oligofructose intakes in patients with active and inactive Crohnâs disease compared with healthy controls. Methods: Patients with active Crohnâs disease (n=98), inactive Crohnâs (n=99) and healthy controls (n=106) were recruited to a case-control study. Dietary intake of inulin-type fructans was measured using a specific food frequency questionnaire and was compared between the three groups and between patients with different disease phenotypes (Montreal classification). Associations between intakes and disease activity (Harvey Bradshaw Index, HBI) were also undertaken. Results: Patients with active Crohnâs disease had lower fructan intakes (median 2.9 g/d, IQR 1.8) than those with inactive Crohnâs (3.6 g/d, 2.1, P=0.036) or controls (3.9 g/d, 2.1, P=0.003) and lower oligofructose intakes (2.8 g/d, 1.8) than inactive Crohnâs (3.5 g/d, 2.2, P=0.048) or controls (3.8 g/d, 2.1, P=0.003). There were no differences in intakes related to disease site or behaviour. There were negative correlations between HBI wellbeing score and fructan intake (Ï=-0.154, P=0.03) and oligofructose intake (Ï=-0.156, P=0.028) and for the HBI abdominal pain score and fructan (Ï=-0.164, P=0.021) and oligofructose intake (Ï=-0.157, P=0.027). Conclusions: Patients with active Crohnâs disease consume lower quantities of fructans and oligofructose than their inactive counterparts and healthy controls. The impact of lower intakes of prebiotic fructans on gut microbiota are unknown and warrant further research
Coinfinder: Detecting Significant Associations and Dissociations in Pangenomes
The accessory genes of prokaryote and eukaryote pangenomes accumulate by horizontal gene transfer, differential gene loss, and the effects of selection and drift. We have developed Coinfinder, a software program that assesses whether sets of homologous genes (gene families) in pangenomes associate or dissociate with each other (i.e. are âcoincidentâ) more often than would be expected by chance. Coinfinder employs a user-supplied phylogenetic tree in order to assess the lineage-dependence (i.e. the phylogenetic distribution) of each accessory gene, allowing Coinfinder to focus on coincident gene pairs whose joint presence is not simply because they happened to appear in the same clade, but rather that they tend to appear together more often than expected across the phylogeny. Coinfinder is implemented in C++, Python3, and R and is freely available under the GPU license from https://github.com/fwhelan/coinfinder
Evidence for selection in a prokaryote pangenome
A pangenome is the complete set of genes (core and accessory) present in a phylogenetic clade. We hypothesize that a pangenomeâs accessory gene content is structured and maintained by selection. To test this hypothesis, we interrogated the genomes of 40 Pseudomonas genomes for statistically significant coincident (i.e. co-occurring/avoiding) gene patterns. We found that 86.7% of common accessory genes are involved in â„1 coincident relationship. Further, genes that co-occur and/or avoid each other - but are not vertically or horizontally co-inherited - are more likely to share Gene Ontology categories, are more likely to be simultaneously transcribed, and are more likely to produce interacting proteins, than would be expected by chance. These results are not due to coincident genes being adjacent to one another on the chromosome. Together, these findings suggest that the accessory genome is structured into interacting sets of genes co-selected to function together within a given strain. Given the simi larity of the Pseudomonas pangenome with open pangenomes of other prokaryotic species, we speculate that these results are generalizable
The value of manual backward contact tracing to control COVID-19 in practice, the Netherlands, February to March 2021:a pilot study
BackgroundContact tracing has been a key component of COVID-19 outbreak control. Backward contact tracing (BCT) aims to trace the source that infected the index case and, thereafter, the cases infected by the source. Modelling studies have suggested BCT will substantially reduce SARS-CoV-2 transmission in addition to forward contact tracing.AimTo assess the feasibility and impact of adding BCT in practice.MethodsWe identified COVID-19 cases who were already registered in the electronic database between 19 February and 10 March 2021 for routine contact tracing at the Public Health Service (PHS) of Rotterdam-Rijnmond, the Netherlands (pop. 1.3 million). We investigated if, through a structured questionnaire by dedicated contact tracers, we could trace additional sources and cases infected by these sources. Potential sources identified by the index were approached to trace the source's contacts. We evaluated the number of source contacts that could be additionally quarantined.ResultsOf 7,448 COVID-19 cases interviewed in the study period, 47% (nâ=â3,497) indicated a source that was already registered as a case in the PHS electronic database. A potential, not yet registered source was traced in 13% (nâ=â979). Backward contact tracing was possible in 62 of 979 cases, from whom an additional 133 potential sources were traced, and four were eligible for tracing of source contacts. Two additional contacts traced had to stay in quarantine for 1 day. No new COVID-19 cases were confirmed.ConclusionsThe addition of manual BCT to control the COVID-19 pandemic did not provide added value in our study setting.</p
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