Planning for authentic language assessment in higher education synchronous online environments

The teaching of some languages in Australia is under threat due substantially to small enrolments. There is considerable need to preserve Australia’s community languages as part of the country’s cultural and linguistic diversity. However, it can be difficult to generate sufficient numbers to sustain the provision of a specific language course in any one location in Australia. Online technologies can provide a solution to this problem. According to the New Media Consortium Horizon Report: 2012 Higher Education Edition “education paradigms are shifting to include online learning, hybrid learning and collaborative models”. Models such as these present a possible solution to the problems associated with providing small enrolment language topics such as Modern Greek. The Logos Australian Centre for Hellenic Language and Culture was established at Flinders University in 2011. Promotion and preservation of Greek language and culture is the focus of the centre which is funded by the South Australian Government with support from the Greek Government. In 2012 the centre moved towards enhancing the delivery of Modern Greek by developing and delivering four language topics and two culture topics online. The delivery of these topics identified assessment as an area which needs further investigation. This paper describes the importance of an assessment strategy for foreign language (FL) learning which is based on the principles of authentic assessment and describes how synchronous technologies can support this strategy

Modern Greek at tertiary level: applying innovative methods of effective assessment and delivery online

In a determined effort to preserve the Modern Greek language as an important part of Australia’s cultural and linguistic diversity, the Logos Australian Centre for Hellenic Language and Culture established at Flinders University in South Australia in 2011 has been enhancing the delivery of Modern Greek and enabling a wider delivery of this small enrolment language by developing online content and an effective model for delivery via synchronous and asynchronous technologies. Six Modern Greek language topics, two cultural topics and some extension materials have been developed and delivered online via the university’s learning management system known as Flinders Learning Online (FLO)

Accepting the blogging challenge: Modern Greek Language Teaching at Tertiary Level

Since the early 2000s, the educational merit of Web 2.0 authoring in the format of blogging has been widely promoted. In the higher education context, blogs have been used successfully for a wide range of purposes including to develop learner autonomy and intercultural competence (Lee, 2011); to increase student motivation to learn from peers via online interaction in the form of blog comments (Yang Chang, 2012); to support students during internships and placements (Chu, Chan Tiwari, 2012); ‘to develop literary, communicative and digital skills’ (Neira-Piñeiro, 2015: 555); to create an inclusive, communicative learning environment (Kim, 2012); to achieve reflective learning (Muncy, 2014) and as part of an assessment process in which student blogs were tracked ‘with the aim of improving self-reflective processes and providing feedback’(Ion, Cano Ferrer, 2014: 238)

Tuberculosis screening among HIV-positive inpatients: a systematic review and individual participant data meta-analysis.

BackgroundSince 2011, WHO has recommended that HIV-positive inpatients be routinely screened for tuberculosis with the WHO four-symptom screen (W4SS) and, if screened positive, receive a molecular WHO-recommended rapid diagnostic test (eg, Xpert MTB/RIF [Xpert] assay). To inform updated WHO tuberculosis screening guidelines, we conducted a systematic review and individual participant data meta-analysis to assess the performance of W4SS and alternative screening tests to guide Xpert testing and compare the diagnostic accuracy of the WHO Xpert algorithm (ie, W4SS followed by Xpert) with Xpert for all HIV-positive inpatients.MethodsWe searched MEDLINE, Embase, and Cochrane Library from Jan 1, 2011, to March 1, 2020, for studies of adult and adolescent HIV-positive inpatients enrolled regardless of tuberculosis signs and symptoms. The separate reference standards were culture and Xpert. Xpert was selected since it is most likely to be the confirmatory test used in practice. We assessed the proportion of inpatients eligible for Xpert testing using the WHO algorithm; assessed the accuracy of W4SS and alternative screening tests or strategies to guide diagnostic testing; and compared the accuracy of the WHO Xpert algorithm (W4SS followed by Xpert) with Xpert for all. We obtained pooled proportion estimates with a random-effects model, assessed diagnostic accuracy by fitting random-effects bivariate models, and assessed diagnostic yield descriptively. This systematic review has been registered on PROSPERO (CRD42020155895).FindingsOf 6162 potentially eligible publications, six were eligible and we obtained data for all of the six publications (n=3660 participants). The pooled proportion of inpatients eligible for an Xpert was 90% (95% CI 89-91; n=3658). Among screening tests to guide diagnostic testing, W4SS and C-reactive protein (≥5 mg/L) had highest sensitivities (≥96%) but low specificities (≤12%); cough (≥2 weeks), haemoglobin concentration (2), and lymphadenopathy had higher specificities (61-90%) but suboptimal sensitivities (12-57%). The WHO Xpert algorithm (W4SS followed by Xpert) had a sensitivity of 76% (95% CI 67-84) and specificity of 93% (88-96; n=637). Xpert for all had similar accuracy to the WHO Xpert algorithm: sensitivity was 78% (95% CI 69-85) and specificity was 93% (87-96; n=639). In two cohorts that had sputum and non-sputum samples collected for culture or Xpert, diagnostic yield of sputum Xpert was 41-70% and 61-64% for urine Xpert.InterpretationThe W4SS and other potential screening tests to guide Xpert testing have suboptimal accuracy in HIV-positive inpatients. On the basis of these findings, WHO now strongly recommends molecular rapid diagnostic testing in all medical HIV-positive inpatients in settings where tuberculosis prevalence is higher than 10%.FundingWorld Health Organization

Early-life respiratory tract infections and the risk of school-age lower lung function and asthma: A meta-analysis of 150 000 European children

BACKGROUND: Early-life respiratory tract infections might affect chronic obstructive respiratory diseases, but conclusive studies from general populations are lacking. Our objective was to examine if children with early-life respiratory tract infections had increased risks of lower lung function and asthma at school age. METHODS: We used individual participant data of 150 090 children primarily from the EU Child Cohort Network to examine the associations of upper and lower respiratory tract infections from age 6 months to 5 years with forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), FEV1/FVC, forced expiratory flow at 75% of FVC (FEF75%) and asthma at a median (range) age of 7 (4-15) years. RESULTS: Children with early-life lower, not upper, respiratory tract infections had a lower school-age FEV1, FEV1/FVC and FEF75% (z-score range: -0.09 (95% CI -0.14- -0.04) to -0.30 (95% CI -0.36- -0.24)). Children with early-life lower respiratory tract infections had a higher increased risk of school-age asthma than those with upper respiratory tract infections (OR range: 2.10 (95% CI 1.98-2.22) to 6.30 (95% CI 5.64-7.04) and 1.25 (95% CI 1.18-1.32) to 1.55 (95% CI 1.47-1.65), respectively). Adjustment for preceding respiratory tract infections slightly decreased the strength of the effects. Observed associations were similar for those with and without early-life wheezing as a proxy for early-life asthma. CONCLUSIONS: Our findings suggest that early-life respiratory tract infections affect development of chronic obstructive respiratory diseases in later life, with the strongest effects for lower respiratory tract infections

Enhancing medication adherence in older adults at two nurse practitioner-owned clinics

BACKGROUND: The World Health Organization identified medication adherence as the greatest opportunity to improve outcomes related to chronic disease. Adherence rates of 80% or greater, or taking medication as prescribed at least 80% of the time, can positively impact health outcomes. LOCAL PROBLEM: A prior study at two nurse practitioner (NP)-owned family practice clinics in New Hampshire measured medication adherence among adult type-2 diabetes mellitus (DM) patients at 77% and declining over a 4-year period. Patients\u27 hemoglobin A1c rates were stagnant despite previous initiative to improve this biomarker. METHODS: Nurse practitioners were educated on provider-driven strategies to improve medication adherence in the older adult with DM, hypertension, and hyperlipidemia. A review of medical records was performed on patients for 52 weeks before seminar and 13 weeks after seminar to capture medication adherence rates and clinical biomarkers. INTERVENTION: Pre- and postseminar data were analyzed to determine whether the seminar resulted in improved adherence and clinical outcomes. RESULTS: Preseminar medication adherence rates exceeded evidence-based standards of 80% for each condition. Postseminar, statistically significant improved adherence rates were seen among DM patients with hypertension. Adherence worsened among hyperlipidemia patients, although this change was not statistically significant. Clinical biomarkers saw little change. CONCLUSIONS: This quality improvement project found that educating NPs on strategies to improve medication adherence can improve adherence among DM and hypertension patients. Continued education and measurement of adherence and clinical biomarkers are encouraged to capture more postseminar visits. This project adds to the growing body of knowledge about patients managed by NPs and NP-owned practices

Skin pigmentation, biogeographical ancestry and admixture mapping.

Ancestry informative markers (AIMs) are genetic loci showing alleles with large frequency differences between populations. AIMs can be used to estimate biogeographical ancestry at the level of the population, subgroup (e.g. cases and controls) and individual. Ancestry estimates at both the subgroup and individual level can be directly instructive regarding the genetics of the phenotypes that differ qualitatively or in frequency between populations. These estimates can provide a compelling foundation for the use of admixture mapping (AM) methods to identify the genes underlying these traits. We present details of a panel of 34 AIMs and demonstrate how such studies can proceed, by using skin pigmentation as a model phenotype. We have genotyped these markers in two population samples with primarily African ancestry, viz. African Americans from Washington D.C. and an African Caribbean sample from Britain, and in a sample of European Americans from Pennsylvania. In the two African population samples, we observed significant correlations between estimates of individual ancestry and skin pigmentation as measured by reflectometry (R(2)=0.21, P<0.0001 for the African-American sample and R(2)=0.16, P<0.0001 for the British African-Caribbean sample). These correlations confirm the validity of the ancestry estimates and also indicate the high level of population structure related to admixture, a level that characterizes these populations and that is detectable by using other tests to identify genetic structure. We have also applied two methods of admixture mapping to test for the effects of three candidate genes (TYR, OCA2, MC1R) on pigmentation. We show that TYR and OCA2 have measurable effects on skin pigmentation differences between the west African and west European parental populations. This work indicates that it is possible to estimate the individual ancestry of a person based on DNA analysis with a reasonable number of well-defined genetic markers. The implications and applications of ancestry estimates in biomedical research are discussed