Month: April 2024

Abstract

Background

Agitation and/or aggression affect up to 60% of persons living with dementia in long-term care (LTC). It can be treated via non-pharmacological and pharmacological interventions, but the former are underused in clinical practice. In the literature, there is currently a lack of understanding of the challenges to caring for agitation and/or aggression among persons living with dementia in LTC. This study assesses what barriers and facilitators across the spectrum of care exist for agitation and/or aggression among people with dementia in LTC across stakeholder groups.

Methods

This was a qualitative study that used semi-structured interviews among persons involved in the care and/or planning of care for people with dementia in LTC. Participants were recruited via purposive and snowball sampling, with the assistance of four owner-operator models. Interviews were guided by the Theoretical Domains Framework and transcribed and analyzed using Framework Analysis.

Results

Eighteen interviews were conducted across 5 stakeholder groups. Key identified barriers were a lack of agitation and/or aggression diagnostic measures, limited training for managing agitation and/or aggression in LTC, an overuse of physical and chemical restraints, and an underuse of non-pharmacological interventions. Facilitators included using an interdisciplinary team to deliver care and having competent and trained healthcare providers to administer non-pharmacological interventions.

Conclusions

This study advances care for persons living with dementia in LTC by drawing attention to unique and systemic barriers present across local and national Canadian LTC facilities. Findings will support future implementation research endeavours to eliminate these identified barriers across the spectrum of care, thus improving care outcomes among people with dementia in LTC.

Abstract

Assimilation is a central phenomenon in phonology, yet there is little consensus on either its representation or computation. In particular, the empirical distinction between spreading (feature sharing) and correspondence (feature copying) is disputed. In this paper, I identify novel diagnostics from two interacting assimilation processes in San Francisco del Mar Huave (isolate: Mexico). First, vowel-copy epenthesis displays a previously unattested blocking pattern that is problematic for spreading, but predicted by feature-copying approaches like Agreement By Correspondence. Second, in CV agreement, I argue that only feature sharing driven by Dep and Specify constraints can insightfully account for the role of underspecification, which produces a range of directionality effects. Huave shows that both spreading and correspondence are needed in phonological theory, and also demonstrates that monolithically assimilation-mandating constraints like Agree can be decomposed to derive assimilation from the interaction of more elementary, independently motivated principles of markedness and faithfulness.

Abstract

To conserve biodiversity, it is imperative to maintain and restore sufficient amounts of functional habitat networks. Therefore, the location of the remaining forests with natural structures and processes over landscapes and large regions is a key objective. Here we integrated machine learning (Random Forest) and open landscape data to scan all forest landscapes in Sweden with a 1 ha spatial resolution with respect to the relative likelihood of hosting High Conservation Value Forests. Using independent spatial stand- and plot-level validation data, we confirmed that our predictions correctly represent different levels of forest naturalness, from degraded to those with high and associated biodiversity conservation values. Given ambitious national and international conservation objectives and increasingly intensive forestry, our model and the resulting wall-to-wall mapping fill an urgent gap for assessing the achievement of evidence-based conservation targets, spatial planning, and designing forest landscape restoration.

Abstract

Antibiotics in agricultural soil can be accumulated in crops and might pose a potential risk to human health. Nevertheless, there is a lack of knowledge about the impact of nitrogen fertilizers on the dissipation and uptake of antibiotics in soils. Therefore, our aim in this study is to investigate the effects of urea fertilizer on the residues of ciprofloxacin and its uptake by Chinese flowering cabbage (Brassica parachinensis L.) as affected by the associated changes on the soil microbial community. A pot experiment has been conducted using spiked soil with 20 mg ciprofloxacin /kg soil and fertilized with urea at dosages equal to 0, 0.2, 0.4, 0.8 t/ha. Application urea especially at 0.4 t/ha decreased the residue of ciprofloxacin in the soil and its uptake by the roots and its translocation to the shoots of Chinese flowering cabbage. The translocation factors (TFs) for ciprofloxacin were significantly decreased (P < 0.05) only at the treatment of 0.4 t/ha, while no significant difference of bio-concentration factors (BCFs). The average well color development (AWCD) values, Shannon diversity, and richness index were higher in the fertilized than the un-fertilized soils, and all such indicators were greater at the treatment of 0.4 t/ha than at 0.2 and 0.8 t/ha. The carbon substrate utilization of phenolic acids at the treatments of 0.4 t/ha were greater than with other levels of urea fertilizer. In conclusion, moderate urea addition significantly increased soil microbial activity and abundance, which in turn promoted the ciprofloxacin dissipation in soil and plant tissue. The present study provides an economical and operational strategy for the remediation of ciprofloxacin contaminated soils.

Graphical Abstract

Abstract

There is an obligation among those teaching epidemiology to incorporate principles of equity, diversity, and inclusion (EDI) into the curriculum. While there is a well-established literature related to teaching epidemiology, this literature rarely addresses critical aspects of EDI. To our knowledge, there is no working group or central point of discussion and learning for incorporating EDI into epidemiology teaching in Canada. To address this gap, we convened a workshop entitled “Incorporating EDI into the epidemiology and biostatistics curriculum and classroom.” The workshop discussed nine strategies to incorporate EDI in the epidemiology curriculum: positionality (or reflexivity) statements; opportunities for feedback; land acknowledgements; clarifying the purpose of collecting data on race and ethnicity, sex and gender, Indigeneity; acknowledging that race/ethnicity is a social construct, not a biological variable; describing incidence and prevalence of disease; demonstrating explicit bias using directed acyclic graphs (DAGs); critical appraisal of study population diversity; and admission criteria and considerations. Key take-aways from the workshop were the need to be more intentional when determining the validity of evidence, particularly with respect to historical context and the need to recognize that there is no single solution that will address EDI.

Abstract

The COVID-19 pandemic is a global crisis which has witnessed consumers experiencing significant anxiety provoked by the threats to their health and even lives. Meanwhile, consumers have been observed to make more ethical purchases since the start of the pandemic. Drawing on literature on terror management and negotiable fate, this research employs a moderated moderating model to investigate how consumers’ perception of the pandemic severity leads to ethical consumption as a defensive mechanism against death-related anxiety, as well as the differential role of consumers’ belief in negotiable fate in moderating this pandemic impact across tight and loose cultures. We conducted two cross-cultural studies with 592 and 423 respondents, respectively, at different times during the pandemic. Results consistently show that perceived pandemic severity increases consumers’ intention to consume ethically. Consumers’ belief in negotiable fate directly enhances ethical consumption, but it alleviates the effect of pandemic severity on ethical consumption among consumers who live in a tight culture. Our findings reveal the existential meaning of ethical consumption as a buffer against pandemic-triggered mortality salience, identify the positive psychological functions of negotiable fate in promoting ethical consumption but mitigating consumers’ need to buffer death-related concerns, and advances the importance of investigating the cultural variances in the terror management process toward ethical consumption. The findings offer insights for marketers and policy makers to develop effective strategies to support consumers’ ethical coping during societal crises.

Abstract

In recent years regenerative agriculture has attracted growing attention as a means to improve soil health and farmer livelihoods while slowing climate change. With this attention has come increased policy support as well as the launch of private sector programs that promote regenerative agriculture as a form of carbon farming. In the United States many of these programs recruit primarily in regions where large-scale commodity production prevails, such as the Great Plains. There, a decades-old regenerative agriculture movement is growing rapidly, but not due to the incentives offered by companies’ carbon programs. On the contrary, farmers are adopting regenerative practices to cut their dependence on corporate agrochemical inputs and expertise, and to thereby achieve technology sovereignty. These practice changes often strain farmers’ existing social relationships while drawing them into new and previously neglected ones, including the more-than-human relations necessary for building soil health. These new relationships and the knowledge they generate may in turn lead farmers to think differently about their own autonomy. These findings provide insight into farmers’ skepticism of private sector carbon farming programs, and highlight the value of attention to the multiple types of relationship change that accompany and facilitate regenerative transitions.

Abstract

Dreissena polymorpha, Dreissena rostriformis bugensis, and Limnoperna fortunei are considered among the most invasive freshwater mussels. The three species share several biological and ecological traits, resulting in often similar effects on the ecosystems. Their planktonic larvae (“veligers” s.l.) can be a dominant component of the summer zooplankton community. The development from fertilized egg to juvenile normally takes 10–20 days, but only < 1–3% of the fertilized eggs reach the settling stage. Consumption of veligers by invertebrates is likely high, but so far largely unexplored. Predation by larval fishes has been more intensively studied. In Europe and North America, 23 fish species feed on dreissenid veligers, whereas in South America ca. 28 consume L. fortunei veligers. Their importance in fish diets varies widely, but in several cases, veligers represent their main or even only source of food. Further, some species perform significantly better when fed veliger-rich diets, than diets with low veliger densities. Mussel larvae have been reported to feed on particles 1–15 µm in size, as well as on dissolved organic carbon, at clearance rates ~ 10 to > 400 µL/veliger/day. Their competitive impact on other filter-feeding organisms can potentially be significant, but data at hand suggest that usually it is minor.