An Examination of Novice and Expert Teachers\u27 Pedagogy in a Mixed-Reality Simulated Inclusive Secondary Classroom Including a Student Avatar With Autism Spectrum Disorders

Teachers, special and general educators alike, are required to teach a variety of students including students with ASD. With a rise in the prevalence of autism by 119.4% since 2000 (Centers for Disease Control and Prevention [CDC], 2016) and 39% of students with ASD being served in general education classrooms for over 80% of the school day (U.S. Department of Education, 2015), teachers need to be prepared to effectively teach this population. To better prepare teachers, the researcher conducted a two-phase study, situated in the framework of the Skill Acquisition Model (Dreyfus & Dreyfus, 1986) to explore the behaviors of novice and expert teachers in a simulated secondary inclusive environment. This classroom included a virtual student with autism. In phase one, the researcher conducted a Delphi Study to determine the best practices, perceived by experts in the field, for teachers who serve students with ASD in inclusive secondary environments. During phase two, the researcher used the list of skills identified as a framework to observe and interview 10 teachers, five novices and five experts, in a simulated secondary inclusive environment. The researcher identified 11 high leverage simulation practices (HLSP) that expert teachers should use while teaching in a simulated secondary inclusive environment. Observations and reflections of expert and novice teachers were analyzed, finding only 4 HLSP among experts and 5 HLSP among novice teachers. Additional HLSP were seen through the teachers\u27 reflections. Data were analyzed and discussed in detail. Implications for practice and recommendations for future research in teacher preparation is provided

Students with Autism Spectrum Disorders Who Participate in FIRST Robotics

One of the challenges of educating adolescents with autism spectrum disorders is to find activities that are interesting and engaging. Researchers have shown that adolescents with autism often are attracted to technology. Using an exploratory research method, the experiences of three students with autism who participated in after school robotics clubs were analyzed. Common themes to emerge were the students with ASD were engaged and interested in FIRST robotics and technology. Specifically, they enjoyed coming up with ideas, inventions, and creating or solving missions. Their confidence increased and they learned to work better on teams. Additionally, they needed significant supports to participate in FIRST Robotics

Inhabitants of interesting subsets of the Bousfield lattice

In 1979, Bousfield defined an equivalence relation on the stable homotopy category. The set of Bousfield classes has some important subsets such as the distributive lattice DL of all classes 〈E〉which are smash idempotent and the complete Boolean algebra cBA of closed classes. We provide examples of spectra that are in DL, but not in cBA; in particular, for every prime p, the Bousfield class of the Eilenberg–MacLane spectrum 〈HFp〉 is in DL∖cBA

Beyond sarcasm: the metalanguage and structures of mock politeness

This paper aims to cast light on the somewhat neglected area of mock politeness. The principle objectives are to describe the ways that mock politeness is talked about and performed. In order to investigate such usage, I analyse data from informal, naturally occurring conversations in a UK-based online forum. The paper introduces a range of metalinguistic expressions which are used to refer to mock polite behaviours in lay interactions and describes the different structures of mock polite behaviours. The analysis shows that both metalanguage and structure are more diverse than anticipated by previous research and, as a result, the paper argues against equating mock politeness with sarcasm and calls for further research into mock politeness as an important strategy of impoliteness

Predicting sensory perceptions of thickened solutions based on rheological analysis

The sensory perceptions of sweetened, flavoured and thickened solutions prepared from xanthan, dextran, sucrose and banana flavour were evaluated and correlated to rheological parameters. The primary aim of this research was to evaluate the relevance of viscosity measured at low shear or at high shear for predicting sensory perceptions. Additionally considered were extensional viscosity estimated from filament thinning experiments and complex shear viscosity. The design of experiments included two groups of 5 samples matched at low shear rate and high shear rate, respectively. Mouthfeel perceptions were well correlated to low shear viscosity, however, including high shear viscosity or extensional viscosity as an additional model parameter improved the predictive quality of the models for thickness, stickiness and mouth coating. Stickiness and mouth coating were better correlated to extensional viscosity than low shear viscosity, although a model including both parameters predicted stickiness and mouth coating best. The complex viscosity at 100 rad/s was also highly correlated to the perception of thickness. Since correlations were not improved over steady shear parameters, complex viscosity was not considered in models based on more than one rheological parameter. Flavour was also scored during sensory evaluation and sweetness and overall flavour were highly correlated. The results of this study have highlighted that there is no single rheological parameter that will ultimately correlate to a range of mouthfeel perceptions. For certain mouth feel perceptions a model comprising shear and extensional rheological parameters will have higher predictive power than a model solely based on shear rheological parameters

Effects of ocean sprawl on ecological connectivity: impacts and solutions

The growing number of artificial structures in estuarine, coastal and marine environments is causing “ocean sprawl”. Artificial structures do not only modify marine and coastal ecosystems at the sites of their placement, but may also produce larger-scale impacts through their alteration of ecological connectivity - the movement of organisms, materials and energy between habitat units within seascapes. Despite the growing awareness of the capacity of ocean sprawl to influence ecological connectivity, we lack a comprehensive understanding of how artificial structures modify ecological connectivity in near- and off-shore environments, and when and where their effects on connectivity are greatest. We review the mechanisms by which ocean sprawl may modify ecological connectivity, including trophic connectivity associated with the flow of nutrients and resources. We also review demonstrated, inferred and likely ecological impacts of such changes to connectivity, at scales from genes to ecosystems, and potential strategies of management for mitigating these effects. Ocean sprawl may alter connectivity by: (1) creating barriers to the movement of some organisms and resources - by adding physical barriers or by modifying and fragmenting habitats; (2) introducing new structural material that acts as a conduit for the movement of other organisms or resources across the landscape; and (3) altering trophic connectivity. Changes to connectivity may, in turn, influence the genetic structure and size of populations, the distribution of species, and community structure and ecological functioning. Two main approaches to the assessment of ecological connectivity have been taken: (1) measurement of structural connectivity - the configuration of the landscape and habitat patches and their dynamics; and (2) measurement of functional connectivity - the response of organisms or particles to the landscape. Our review reveals the paucity of studies directly addressing the effects of artificial structures on ecological connectivity in the marine environment, particularly at large spatial and temporal scales. With the ongoing development of estuarine and marine environments, there is a pressing need for additional studies that quantify the effects of ocean sprawl on ecological connectivity. Understanding the mechanisms by which structures modify connectivity is essential if marine spatial planning and eco-engineering are to be effectively utilised to minimise impacts

Adjunctive rifampicin for Staphylococcus aureus bacteraemia (ARREST): a multicentre, randomised, double-blind, placebo-controlled trial.

BACKGROUND: Staphylococcus aureus bacteraemia is a common cause of severe community-acquired and hospital-acquired infection worldwide. We tested the hypothesis that adjunctive rifampicin would reduce bacteriologically confirmed treatment failure or disease recurrence, or death, by enhancing early S aureus killing, sterilising infected foci and blood faster, and reducing risks of dissemination and metastatic infection. METHODS: In this multicentre, randomised, double-blind, placebo-controlled trial, adults (≥18 years) with S aureus bacteraemia who had received ≤96 h of active antibiotic therapy were recruited from 29 UK hospitals. Patients were randomly assigned (1:1) via a computer-generated sequential randomisation list to receive 2 weeks of adjunctive rifampicin (600 mg or 900 mg per day according to weight, oral or intravenous) versus identical placebo, together with standard antibiotic therapy. Randomisation was stratified by centre. Patients, investigators, and those caring for the patients were masked to group allocation. The primary outcome was time to bacteriologically confirmed treatment failure or disease recurrence, or death (all-cause), from randomisation to 12 weeks, adjudicated by an independent review committee masked to the treatment. Analysis was intention to treat. This trial was registered, number ISRCTN37666216, and is closed to new participants. FINDINGS: Between Dec 10, 2012, and Oct 25, 2016, 758 eligible participants were randomly assigned: 370 to rifampicin and 388 to placebo. 485 (64%) participants had community-acquired S aureus infections, and 132 (17%) had nosocomial S aureus infections. 47 (6%) had meticillin-resistant infections. 301 (40%) participants had an initial deep infection focus. Standard antibiotics were given for 29 (IQR 18-45) days; 619 (82%) participants received flucloxacillin. By week 12, 62 (17%) of participants who received rifampicin versus 71 (18%) who received placebo experienced treatment failure or disease recurrence, or died (absolute risk difference -1·4%, 95% CI -7·0 to 4·3; hazard ratio 0·96, 0·68-1·35, p=0·81). From randomisation to 12 weeks, no evidence of differences in serious (p=0·17) or grade 3-4 (p=0·36) adverse events were observed; however, 63 (17%) participants in the rifampicin group versus 39 (10%) in the placebo group had antibiotic or trial drug-modifying adverse events (p=0·004), and 24 (6%) versus six (2%) had drug interactions (p=0·0005). INTERPRETATION: Adjunctive rifampicin provided no overall benefit over standard antibiotic therapy in adults with S aureus bacteraemia. FUNDING: UK National Institute for Health Research Health Technology Assessment