Aboriginal perspectives matter: Yarning and reflecting about teaching literacies with multimodal Aboriginal texts

Reporting on a qualitative study, informed by Australian Government Indigenous education and literacy policies, this article unveils early career teacher reflections about infusing Aboriginal perspectives in the English curriculum using multimodal texts. Forging a praxis between the Aboriginal practice of yarning (Bessarab & Ng’andu, 2010) and Freire’s (1974, 1996) frameworks for conscientisation and teachers as facilitators, the project overlays the work of Ladson-Billings (1995) and Foster, Halliday, Baize & Chisholm (2020), to unravel how culturally responsive pedagogy manifests in early career primary school teaching. We discuss teacher starting points and challenges to be culturally responsive educators, who use appropriate Aboriginal texts in classrooms. Results suggest that yarning is useful for meeting English curriculum outcomes and for collaboratively developing decolonising knowledge, which can impact multiple stakeholders. Recommendations for future research include co-designed projects to support teacher education through multimodal texts and yarning practices with Aboriginal Elders

Profiling condition-specific, genome-wide regulation of mRNA stability in yeast

The steady-state abundance of an mRNA is determined by the balance between transcription and decay. Although regulation of transcription has been well studied both experimentally and computationally, regulation of transcript stability has received little attention. We developed an algorithm, MatrixREDUCE, that discovers the position-specific affinity matrices for unknown RNAbinding factors and infers their condition-specific activities, using only genomic sequence data and steady-state mRNA expression data as input. We identified and computationally characterized the binding sites for six mRNA stability regulators in Saccharomyces cerevisiae, which include two members of the Pumilio-homology domain (Puf) family of RNA-binding proteins, Puf3p and Puf4p. We provide computational and experimental evidence that regulation of mRNA stability by these factors is modulated in response to a variety of environmental stimuli

“A robust and simple catheter connector assembly for long-term self-administration experiments ”

Intravenous self-administration in rats is used widely to study the reinforcing effects of drugs and serves as the gold standard for assessing their use and misuse potential. One challenge that researchers often encounter when scaling up experiments is balancing the cost, time investment to construct, and robustness of each implanted catheter. These catheters include multiple components such as surgical meshing and a variety of entry ports designed to facilitate the connection of the rat to a catheter port tethering system. Other considerations include maintaining the catheters free of blockage during the extent of the drug self-administration experiment. These large-scale studies provide ample opportunity for the catheter system to fail. The failure and replacement of commercially purchased catheters leads to ballooning expenses, and the failure of in-lab manufactured catheters requires the manufacture of reserves, also increasing costs, as these handmade products are inherently more variable. We have developed a catheter system that combines a commercially available implantable back-mounted entry connector system with inexpensive medical items such as surgical mesh, sutures, and an air-tight back flow prevention system to bolster the overall success of self-administration experiments. Method to bolster commercially available jugular catheter components for long-lasting self- administration experiments. Reduces the overall cost per unit of self-administration experiments. Easily assembled by laboratory students and staff

Assessing Professionalism Using the Objective Structured Clinical Exam

The Objective Structured Clinical Exam (OSCE) is widely used as an assessment tool. Traditionally, the OSCE measures history taking, physical exam, and interview skills. More recently, the OSCE has also been utilized to assess professionalism. Because episodes of unprofessional behavior are situational and therefore difficult to track, a case was designed to present a special challenge that might identify shortfalls in professionalism. A scale was also developed to measure this behavior in each OSCE encounter. The purpose of this study was to determine whether professionalism could be adequately assessed by using common OSCE cases or whether a designated case with a specific formal component is needed. Presented at the AAMC (Association of American Colleges) Annual Meeting, RIME (Research in Medical Education) Program, November 2003

The Importance of Acquisition Learning on Nicotine and Varenicline Drug Substitution in a Drug-Discriminated Goal-Tracking Task

Nicotine and varenicline (Chantix®; the leading non-nicotine cessation pharmacotherapy) can come to control appetitive behaviors such as goal-tracking. We tested rats (N = 48) in a drug-discriminated goal-tracking (DGT) task where each rat received daily subcutaneous injections of either nicotine (0.4 mg/kg) or saline (0.9% [w/v]) interspersed across the acquisition phase (Phase 1). On saline days, sucrose was intermittently available. On nicotine days, sucrose was withheld. All rats acquired the discrimination with increased goal-tracking rates on saline days relative to nicotine days. Following acquisition, rats were separated into four groups to assess drug-substitution and discrimination reversal in Phase 2. The first group maintained the stimulus-reinforcer relation from acquisition (NIC−). The reversal group was now given access to sucrose on nicotine days (NIC+). The substitution group replaced nicotine with varenicline (1 mg/kg) while maintaining the acquisition stimulus-reinforcer relation (VAR−). The substitution and reversal group had nicotine replaced by varenicline and the stimulus-reinforcer relation reversed (VAR+). Rats in all groups learned or maintained their Phase 1 discriminations. For Phase 2, the reversal groups (+ conditions) acquired their discriminations within 10 sessions. The VAR−group displayed a pattern of disrupted discrimination at the outset of Phase 2 but was reestablished after continued training. In substitution testing, VAR groups received nicotine and NIC groups received varenicline. The NIC−and VAR−groups displayed full substitution of the test stimulus whereas the NIC+ and VAR+ groups displayed partial substitution of the test stimulus. Rats underwent nicotine extinction in Phase 3. Initial responding for each group mimicked Phase 2 training (i.e., higher responding by the reversal groups). All rats maintained similarly low levels of responding after six sessions. In conclusion, initial learning history with nicotine (i.e., + or −) influenced drug-stimulus substitution and the rate at which new learning (e.g., reversal) occurs with the varenicline and nicotine interoceptive stimuli

Pre/Post Comparison of Medical Students\u27 Self-Reported Competence Ratings for Content and Skill Areas Included in an End of Third Year Assessment

The End of Third Year Assessment (EOTYA) evaluates medical students using multiple objective Structured Clinical Examinations (OSCE) and offers comprehensive feedback to students on their content knowledge and skills. This study measures the change in students\u27 perceived level of competence before and after completing the EOTYA. Presented at the AAMC (Association of American Colleges) Annual Meeting, RIME (Research in Medical Education) Program, November 2004

The impact of experiences of ageism on sexual activity and interest in later life

Experiences of ageism are associated with poorer health outcomes. Sexual activity and interest are areas in life where the impact of ageism may also be evident as popular culture often depicts the older body as asexual, undesirable or sexually impotent. We explore the possible links between experiences of ageism and sexual activity/interest in later life using data from a study of Australians aged 60+. We explored characteristics of those who were more likely to have experienced ageism (measured using the Ageism survey) and the relationships between experiences of ageism and measures of sexual interest/activity in later life (n=1,817). Experiences of ageism were greater among those without a partner, unemployed participants, those with lower incomes, and poorer self-rated health. Adjusting for these differences, experiences of ageism were more likely to be reported by those who had not had sex in the past two years and were not sure about their hopes/plans for sex in the future. Those who reported their sexual interest had increased or decreased since 60 also reported greater levels of ageism experience, as did those who wanted to have sex more frequently in the future. Ageism appears to impact sexual activity and interest in different ways. It is critical that social policy aims to reverse attitudes that reinforce the view of the ageist asexual and unattractive older body or person

Whole Systems Approaches to Diet and Healthy Weight: A Scoping Review of Reviews

© 2024 The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY), https://creativecommons.org/licenses/by/4.0/Background Obesity is a global epidemic affecting all age groups, populations, and income levels across continents, though is known to disproportionately affect socioeconomically disadvantaged populations. The causes of obesity are complex, informed by diet and weight practices, but shaped by social, commercial, and environmental factors and government policy. Consequently, a Whole System Approach (WSA) – which considers the many causes of obesity and shifts the focus away from individuals as points of intervention and puts an emphasis on understanding and improving the system in which people live – is required. This scoping review of reviews aims to: determine how WSAs to diet and healthy weight have been implemented and evaluated nationally and internationally; to determine what models or theories have been used to implement WSAs; describe how WSAs have been evaluated; determine if WSAs are effective; and to identify the contribution of the public and/or service users in the development of WSAs. Method Systematic searches were carried out using CINAHL, Scopus, PsycINFO (ProQuest), the Cochrane Library, and MEDLINE. Included review papers were those that focused on the application of a whole system approach to diet and/or healthy weight, and/or reported the theory/model used to implement or simulate this approach. Databases were searched from 1995 to March 2022 using a combination of text and Medical Subject Headings (MeSH terms). In addition, reference sections of identified articles were examined for additional relevant articles. Covidence software was used to screen titles and abstracts from the electronic databases and resolve conflicts. Results A total of 20,308 articles were initially retrieved; after duplicate removal 7,690 unique title and abstracts were reviewed, and 110 articles were selected for full text review. On completion of full text review, 8 review articles were included for data extraction. These included: one umbrella review, four systematic reviews, a rapid review, and two literature reviews (one of which was on strategic reports written for government and public health policy). Evaluations of WSA were mainly process evaluations although health outcomes were assessed in some studies. Several conceptual frameworks or mathematical modelling approaches have been applied to WSAs for diet, healthy weight, and obesity to inform their planning or delivery, and to understand/map the associated systems. Common mathematical approaches include agent based or System Dynamic Modelling. Underlying both conceptual and mathematical models is an understanding how the elements of the complex systems impact each other to affect diet, healthy weight, and obesity. WSA implementations have reported some success in positively impacting health outcomes including reducing Body Mass Index, reducing sugary food intake, and increasing physical activity. Public and user involvement in WSA was not widely reported. Conclusion The application of WSA to diet and healthy weight shows promise, yet the research is lagging behind their implementation. Further robust evidence for using WSA to address diet and healthy weight are required, including incorporating process and outcome evaluations (perhaps using established approaches such as Systems Dynamic Modelling). Furthermore, the analysis of epidemiological data alongside longitudinal process and outcome evaluation regarding the implementation of a WSA is required.Peer reviewe

Formulation and Immunogencity studies of Type III Secretion System needle antigens as Vaccine Candidates

Bacterial infections caused by Shigella flexneri, Salmonella typhimurium and Burkholderia pseudomallei are currently difficult to prevent due to the lack of a licensed vaccine. Here we present formulation and immunogenicity studies for the three type III secretion system (TTSS) needle proteins MxiHΔ5, PrgIΔ5 and BsaLΔ5 (each truncated by five residues at its C terminus) as potential candidates for vaccine development. These antigens are found to be thermally stabilized by the presence of carbohydrates and polyols. Additionally, all adsorb readily to aluminum hydroxide apparently through a combination of hydrogen bonds and/or Van der Waals forces. The interaction of these proteins with the aluminum-based adjuvant changes with time to resulting in varying degrees of irreversible binding. Peptide maps of desorbed protein, however, suggest that chemical changes are not responsible for this irreversible association. The ability of MxiHΔ5 and PrgIΔ5 to elicit strong humoral immune responses was tested in a murine model. When administered intramuscularly as monomers, the needle components exhibited dose dependent immunogenic behavior. The polymerized version of MxiH was exceptionally immunogenic even at low doses. The responses of both monomeric and polymerized forms were boosted by adsorption to an aluminum salt adjuvant