Granular size segregation in underwater sand ripples

We report an experimental study of a binary sand bed under an oscillating water flow. The formation and evolution of ripples is observed. The appearance of a granular segregation is shown to strongly depend on the sand bed preparation. The initial wavelength of the mixture is measured. In the final steady state, a segregation in volume is observed instead of a segregation at the surface as reported before. The correlation between this phenomenon and the fluid flow is emphasised. Finally, different ``exotic'' patterns and their geophysical implications are presented.Comment: 8 page

Characterization of Actions Taken During the Delivery of Medication Therapy Management: A Time-and-Motion Approach

OBJECTIVES: To characterize actions performed by pharmacists and support staff during provision of medication therapy management (MTM) and to compare actions performed according to practice characteristics. METHODS: A purposeful sample of 7 MTM practices (2 call centers and 5 community practices) was identified and visited by investigators. Pharmacists and support staff were observed during their routine provision of MTM. Investigators characterized "major" (e.g., preparation for a comprehensive medication review) and "minor" (i.e., specific steps in overarching major action) actions with the use of a time-and-motion approach. RESULTS: A total of 32 major and 469 minor actions were observed. Practices were characterized as Later Maturity Level or Early Maturity Level on the basis of their self-reported MTM appointment volume, self-assessment of the extent of integration of chronic care model principles, and payer mix. Later Maturity Level practices were more likely to deliver follow-up medication therapy reviews and comprehensive medication reviews (CMRs) as opposed to targeted medication reviews (TMRs) and to receive physician referrals for MTM. Later Maturity Level practices were also more likely to use paid interns than pharmacy rotation students. CMR activities observed at Later Maturity Level practices lasted a median of 30.8 minutes versus 20.3 minutes for CMR activities at Early Maturity Level practices. Similarly, TMR activities observed at Later Maturity Level practices were longer: a median of 31.0 minutes versus 12.3 minutes. At Later Maturity Level practices, pharmacists spent a greater proportion of time providing patient education, while support staff spent a greater proportion of time on tasks such as capturing demographics and introducing or explaining MTM. CONCLUSION: MTM activities were longer at Later Maturity Level practices, and these practices were more likely to use paid pharmacy interns and to receive physician referrals for MTM. This work provides a foundation for future research

Examining the Impact of De-escalation Training Among Emergency Department Nurses

Workplace violence is a growing concern for US nurses, especially in the context of COVID-19 and patient incivility. De-escalation training can help mitigate high-risk incidents, but its psychological benefits are not well understood. This study aimed to determine if de-escalation training for emergency department nurses provided psychological benefit. This pre-experimental pre-test, post-test study evaluated nurse confidence in coping with patient aggression, caregiver resiliency, professional quality of life, and intention to stay with the organization. Participants completed a pretest survey, attended a two-hour verbal de-escalation training via zoom, and then completed the posttest survey. The study showed that attending the two-hour verbal de-escalation training resulted in a statistically significant decrease in reported nurse burnout on the professional quality of life scale (p = .016). However, there was no significant differences in overall nurse resilience (p = .714), professional quality of life compassion subscale (p = .172), professional quality of life secondary traumatic stress subscale (p = .14), confidence in coping with patient aggression (p = .066), and intention to stay (p = 1). These findings suggest that healthcare organizations should prioritize de-escalation training for their nurses to equip them with the skills and confidence needed to handle high-risk situations effectively. Further research is needed to examine the long-term psychological effects of de-escalation training.https://digitalcommons.odu.edu/gradposters2023_healthsciences/1001/thumbnail.jp

Canadian plurism an institutional logic in CJAS

The Administrative Sciences Association of Canada (ASAC) is comprised of management educators and practitioners interested in advancing Canadian management scholarship, teaching and practice. It has been challenged by a weak definition of one of its core institutional logics, Canadian, but has balanced it with a seemingly incompatible logic of international relevance. The Canadian Journal of Administrative Science (CJAS), part of the ASAC model, is ideal example of Canadian organizing in practice. Through a discourse analysis of CJAS editorials and Canadian articles, I propose these logics should not be viewed as incompatible, they demonstrate an acceptance of plurality in Canadian management

Two-eyed critical sensemaking

1 online resource (195 pages) : chartsIncludes abstract and appendices.Includes bibliographical references (pages 163-182).The research method, Two-Eyed Critical Sensemaking, is a novel integrative approach for studying the relationship between policy documents and enactments of respectful reconciliation focused organizational change. Drawing from the guiding principle of Etuaptmumk/Two Eyed Seeing, I define six iterative methodological steps that weave together two qualitative critical research approaches - Culturally Relevant Gender-Based Analysis (CRGBA), an Indigenous-led view of applied policy studies, and Critical Sensemaking, a Canadian-led view of management and organization studies. I use the Truth and Reconciliation Commission (TRC) of Canada as a case study to demonstrate the function of the Two-Eyed Critical Sensemaking method. The TRC sparked public concern regarding Canada-Indigenous reconciliation and a discursive shift that transformed reconciliation into a defining political issue in Canada. But, the meaning of reconciliation is inconsistently used in practice. I propose the TRC presents a model for reconciliation-oriented organizational change for Canadian administrators responding to the Commission’s Calls to Action

Suppression of RAF/MEK or PI3K synergizes cytotoxicity of receptor tyrosine kinase inhibitors in glioma tumor-initiating cells

Additional file 5. Data of RPPA analysis

South Korea's automotive labour regime, Hyundai Motors’ global production network and trade‐based integration with the European Union

This article explores the interrelationship between global production networks(GPNs) and free trade agreements (FTAs) in the South Korean auto industry and its employment relations. It focuses on the production network of the Hyundai Motor Group (HMG) — the third biggest automobile manufacturer in the world — and the FTA between the EU and South Korea. This was the first of the EU’s ‘new generation’ FTAs, which among other things contained provisions designed to protect and promote labour standards. The article’s argument is twofold. First, that HMG’s production network and Korea’s political economy (of which HMG is a crucial part) limited the possibilities for the FTA’s labour provisions to take effect. Second, that the commercial provisions in this same FTA simultaneously eroded HMG’s domestic market and corporate profitability, leading to adverse consequences for auto workers in the more insecure and low-paid jobs. In making this argument, the article advances a multiscalar conceptualization of the labour regime as an analytical intermediary between GPNs and FTAs. It also provides one of the first empirical studies of the EU–South Korea FTA in terms of employment relations, drawing on 105 interviews with trade unions, employer associations, automobile companies and state officials across both parties

Dimensions of professional competences for interventions towards sustainability

This paper investigates sustainability competences through the eyes of professional practitioners in the field of sustainability and presents empirical data that have been created using an action research approach. The design of the study consists of two workshops, in which professional practitioners in interaction with each other and the facilitators are invited to explore and reflect on the specific knowledge, skills, attitudes and behaviours necessary to conduct change processes successfully towards sustainability in a variety of business and professional contexts. The research focuses on the competences associated with these change processes to devise, propose and conduct appropriate interventions that address sustainability issues. Labelled ‘intervention competence’, this ability comprises an interlocking set of knowledge, skills, attitudes and behaviours that include: appreciating the importance of (trying to) reaching decisions or interventions; being able to learn from lived experience of practice and to connect such learning to one’s own scientific knowledge; being able to engage in political-strategic thinking, deliberations and actions, related to different perspectives; the ability for showing goal-oriented, adequate action; adopting and communicating ethical practices during the intervention process; being able to cope with the degree of complexity, and finally being able to translate stakeholder diversity into collectively produced interventions (actions) towards sustainability. Moreover, this competence has to be practised in contexts of competing values, non-technical interests and power relations. The article concludes with recommendations for future research and practice

Biological Transformation and Detoxification of 7,12-Dimethylbenzanthracene in Soil

Biological transformation and detoxification of 7,12-dimethylbenz(a)anathracene (DMBA) were studied in a nonacclimated sandy loam soil. Parent 14C DMBA biodegraded extensively (62% to 20%), accompanying an increase of metabolite 14C fraction (4% to 53%). Incorporation of DMBA into non extractable soil residue ,4C increased from 12 to 17%, but the increase was not statistically significant. DMBA was transformed into several metabolic products in the soil system, including 4-hydroxy-, 5-hydroxy-, and 10-hydroxy-DMBA and 7,12-dihydro 12-methyl-7-methylene-benz(a)anthracene-12-ol. High polarity transformation products of DMBA demonstrated a negative mu tagenic response with the Ames mutagenicity assay, strain TA 100, for both low and neutral pH soils. Moderate and low polar metabolites, however, induced mutagenicity for both soil samples. The mutagenicity of these metabolites decreased with incubation time in the soil, suggesting detoxification and assimilation of this polyaromatic hydrocarbon in soil systems. Mutagenic responses for the metabolites formed from low and neutral pH soil were similar. J. Water Pollut. Control Fed. 60, 1822 (1988)

Temperature effect on tert-butyl alcohol (TBA) biodegradation kinetics in hyporheic zone soils

<p>Abstract</p> <p>Background</p> <p>Remediation of tert-butyl alcohol (TBA) in subsurface waters should be taken into consideration at reformulated gasoline contaminated sites since it is a biodegradation intermediate of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and tert-butyl formate (TBF). The effect of temperature on TBA biodegradation has not been not been published in the literature.</p> <p>Methods</p> <p>Biodegradation of [U ¹⁴C] TBA was determined using hyporheic zone soil microcosms.</p> <p>Results</p> <p>First order mineralization rate constants of TBA at 5°C, 15°C and 25°C were 7.84 ± 0.14 × 10^-3, 9.07 ± 0.09 × 10^-3, and 15.3 ± 0.3 × 10^-3days-1, respectively (or 2.86 ± 0.05, 3.31 ± 0.03, 5.60 ± 0.14 years^-1, respectively). Temperature had a statistically significant effect on the mineralization rates and was modelled using the Arrhenius equation with frequency factor (A) and activation energy (Ea) of 154 day^-1and 23,006 mol/J, respectively.</p> <p>Conclusion</p> <p>Results of this study are the first to determine mineralization rates of TBA for different temperatures. The kinetic rates determined in this study can be used in groundwater fate and transport modelling of TBA at the Ronan, MT site and provide an estimate for TBA removal at other similar shallow aquifer sites and hyporheic zones as a function of seasonal change in temperature.</p