Effective Teaching In The Classroom: Can It Be Done?

This paper looks at some of the techniques that have been used to make the lecture theatre and classroom more effective and provides details of an astonishing Australian success story. There have been questions raised among academics about the usefulness of the traditional lecture approach that has been used for many years at universities and other tertiary institutions. With increasing calls from some quarters to embrace modern technology and move to more interactive learning systems, the time has come to examine just whether such a radical change is indeed warranted. The approaches taken by two undergraduate and postgraduate business faculties at a leading university are contrasted

Risk assessment in mental health: introducing a traffic light system in a community mental health team.

AIMS: To reports a study in which action research approach was utilised to introduce a new system of risk assessment, based on traffic lights, into a community mental health team. BACKGROUND: Risk management is a serious concern in community mental healthcare where there is less direct, real-time supervision of clients than in other settings, and because inadequate management of risk can have fatal consequences when service users are a risk to themselves and/or others. DESIGN: An action research design was undertaken, using three phases of Look, Think and Act. METHODS: Data were collected between January and March of 2012. In the action research phases, qualitative data were collected in focus groups with the team's multi-disciplinary mental health professionals. Data were transcribed verbatim and analysed thematically, which involved agreement of themes and interpretations by two researchers. The Look, Think and Act phases guided the development of the project; team members worked collaboratively on the traffic light system, implemented and evaluated it. FINDINGS: Themes were constructed that were discussed across the focus groups. These themes were: Ease of use; Risk identification and management; Legal status; Different teams' views of risk; Post-implementation evaluation. CONCLUSION: Action research has been used to implement change in mental health risk management. Others internationally would benefit from considering a Traffic Light System, and in using action research to implement it

Dying for a change? Bringing new senses to near eastern neolithic mortuary practice

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Perceptions of employability among London's low-paid: 'self-determination' or ethnicity?

We investigate how ethnicity, gender and other characteristics affect low-paid workers’ perceptions of their employability in London’s labour market, examining ‘self-determination’, ethnic and dual labour market theories. We find that perceptions vary considerably, both between genders and ethnicities and in the extent to which they are ‘justified’ by human capital attributes. Optimism varies between genders and ethnic groups but individuals’ perceptions vary to an even greater extent within genders and ethnic groups. Hence, individual-level ‘self-determination’ explanations of these perceptions appear to have greatest explanatory power though ethnic theories also have utility

An Investigation of the Information Provided to the Parents of Young People with Mental Health Needs on an Internet Forum

Background: Access to Children and Adolescent Mental Health Services (CAMHS) can be difficult, with lengthy wait times. Many of the young people and their parents are not signposted to any form of support during their wait for initial assessment or treatment and people are increasingly turning towards web-based resources for help and advice. However, there are some concerns about the quality of the information shared online. Research on the use and quality of information shared on online platforms for mental health inquiries is limited. Aims: We aimed to investigate the content and quality of the responses shared by forum users on an online forum for parents of young people with mental health needs (Mumsnet ‘Talk’). Forum users were primarily parents, but 8 posts were written by posters identifying as a healthcare worker, teacher, or autism spectrum specialist. Methods: Qualitative methodology was adopted for this study. Forum content from Mumsnet was extracted in an anonymised form and thematic analysis was conducted to explore the content. Information shared in the online forum was assessed for quality by comparing the responses with clinical guidelines. Results: Thread topics related to 16 mental health problems. “Autistic Traits/Autism Spectrum Disorder”, “Obsessions and Intrusive Thoughts/ Obsessive Compulsive Disorder” and “Comorbid Anxiety and Depression” were the most prevalent thread topics, consisting 38.3% of the extracted content. The investigation focused on “Information Offered” as the general dimension. Based on the thematic analysis, there were four second-order themes regarding the information offered by forum users; referral, advice, anecdotal information and opinion on case. The quantitative assessment of responses found that 58.3% of the knowledge exchange on Mumsnet was congruent with evidence-based clinical guidelines. Conclusions: Themes indicate that parents of children and young people with mental health needs seem to use online fora for informational support. It is promising that a significant proportion of the information shared within the extracted forum content is congruent with evidence-based knowledge. However, further investigation is needed to generate better understanding of the overall quality of mental health information available on online platforms

An empirical comparison between stochastic and deterministic centroid initialisation for K-Means variations

K-Means is one of the most used algorithms for data clustering and the usual clustering method for benchmarking. Despite its wide application it is well-known that it suffers from a series of disadvantages, such as the positions of the initial clustering centres (centroids), which can greatly affect the clustering solution. Over the years many K-Means variations and initialisations techniques have been proposed with different degrees of complexity. In this study we focus on common K-Means variations and deterministic initialisation techniques and we first show that more sophisticated initialisation methods reduce or alleviates the need of complex K-Means clustering, and secondly, that deterministic methods can achieve equivalent or better performance than stochastic methods. These conclusions are obtained through extensive benchmarking using different model data sets from various studies as well as clustering data sets

Identification, variation and transcription of pneumococcal repeat sequences.

BACKGROUND: Small interspersed repeats are commonly found in many bacterial chromosomes. Two families of repeats (BOX and RUP) have previously been identified in the genome of Streptococcus pneumoniae, a nasopharyngeal commensal and respiratory pathogen of humans. However, little is known about the role they play in pneumococcal genetics. RESULTS: Analysis of the genome of S. pneumoniae ATCC 700669 revealed the presence of a third repeat family, which we have named SPRITE. All three repeats are present at a reduced density in the genome of the closely related species S. mitis. However, they are almost entirely absent from all other streptococci, although a set of elements related to the pneumococcal BOX repeat was identified in the zoonotic pathogen S. suis. In conjunction with information regarding their distribution within the pneumococcal chromosome, this suggests that it is unlikely that these repeats are specialised sequences performing a particular role for the host, but rather that they constitute parasitic elements. However, comparing insertion sites between pneumococcal sequences indicates that they appear to transpose at a much lower rate than IS elements. Some large BOX elements in S. pneumoniae were found to encode open reading frames on both strands of the genome, whilst another was found to form a composite RNA structure with two T box riboswitches. In multiple cases, such BOX elements were demonstrated as being expressed using directional RNA-seq and RT-PCR. CONCLUSIONS: BOX, RUP and SPRITE repeats appear to have proliferated extensively throughout the pneumococcal chromosome during the species' past, but novel insertions are currently occurring at a relatively slow rate. Through their extensive secondary structures, they seem likely to affect the expression of genes with which they are co-transcribed. Software for annotation of these repeats is freely available from ftp://ftp.sanger.ac.uk/pub/pathogens/strep_repeats/

Axl-EGFR receptor tyrosine kinase hetero-interaction provides EGFR with access to pro-invasive signalling in cancer cells

© The Author(s) 2016. Acquired resistance to conventional and targeted therapies is becoming a major hindrance in cancer management. It is increasingly clear that cancer cells are able to evolve and rewire canonical signalling pathways to their advantage, thus evading cell death and promoting cell invasion. The Axl receptor tyrosine kinase (RTK) has been shown to modulate acquired resistance to EGFR-targeted therapies in both breast and lung cancers. Glioblastoma multiforme (GBM) is a highly infiltrative and invasive form of brain tumour with little response to therapy. Both Axl and EGFR have been identified as major players in gliomagenesis and invasiveness. However, the mechanisms underlying a potential signalling crosstalk between EGFR and Axl RTKs are unknown. The purpose of this study was to investigate this novel and unconventional interaction among RTKs of different families in human GBM cells. With the use of western blotting, in vitro kinase activity, co-immunoprecipitation and bimolecular fluorescence complementation assays, we show that EGF stimulates activation of Axl kinase and that there is a hetero-interaction between the two RTKs. Through small interfering RNA knockdown and quantitative PCR screening, we identified distinct gene expression patterns in GBM cells that were specifically regulated by signalling from EGFR-EGFR, Axl-Axl and EGFR-Axl RTK parings. These included genes that promote invasion, which were activated only via the EGFR-Axl axis (MMP9), while EGFR-EGFR distinctly regulated the cell cycle and Axl-Axl regulated invasion. Our findings provide critical insights into the role of EGFR-Axl hetero-dimerisation in cancer cells and reveal regulation of cell invasion via Axl as a novel function of EGFR signalling

Frequency-dependent selection in vaccine-associated pneumococcal population dynamics

Many bacterial species are composed of multiple lineages distinguished by extensive variation in gene content. These often cocirculate in the same habitat, but the evolutionary and ecological processes that shape these complex populations are poorly understood. Addressing these questions is particularly important for Streptococcus pneumoniae, a nasopharyngeal commensal and respiratory pathogen, because the changes in population structure associated with the recent introduction of partial-coverage vaccines have substantially reduced pneumococcal disease. Here we show that pneumococcal lineages from multiple populations each have a distinct combination of intermediate-frequency genes. Functional analysis suggested that these loci may be subject to negative frequency-dependent selection (NFDS) through interactions with other bacteria, hosts or mobile elements. Correspondingly, these genes had similar frequencies in four populations with dissimilar lineage compositions. These frequencies were maintained following substantial alterations in lineage prevalences once vaccination programmes began. Fitting a multilocus NFDS model of post-vaccine population dynamics to three genomic datasets using Approximate Bayesian Computation generated reproducible estimates of the influence of NFDS on pneumococcal evolution, the strength of which varied between loci. Simulations replicated the stable frequency of lineages unperturbed by vaccination, patterns of serotype switching and clonal replacement. This framework highlights how bacterial ecology affects the impact of clinical interventions.Accessory loci are shown to have similar frequencies in diverse Streptococcus pneumoniae populations, suggesting negative frequency-dependent selection drives post-vaccination population restructuring