Occurrence, source, and ecological risk of pharmaceuticals and illicit drugs in surface water in Las Vegas, USA

Abstract

Globally, pharmaceuticals and illicit drugs (PIDs) are only partially removed by conventional wastewater treatment plants. The origin, sources, and ecological risk of PIDs in Las Vegas Wash are studied scarcely. Therefore, this study aimed to provide insights into the impact of large social events [Electric Dance Carnival (EDC) and National Football League Draft (NFL Draft)] on the levels of PIDs of a unique surface water system located in Las Vegas, Nevada (USA), a contributary to the Colorado River. Thus, distribution of PIDs was evaluated at multiple locations (n = 10) along the Las Vegas Wash. The results of this study showed that the concentrations of benzoylecgonine, ketamine, 3,4-methylenedioxymethamphetamine (MDMA), and methamphetamine were 8–41 ng L−1, 14–192 ng L−1, 3.5–2118 ng L−1, and 13.7–194 ng L−1, respectively. Compared the control period, usage of drugs of abuse was significantly elevated during the EDC period. For example, the median concentration of MDMA (558 ng L−1) in surface water during the EDC festival was 46 times higher over the control period. The source of PIDs contamination was determined with principal component analysis and linear discriminant analysis (LDA). LDA provides a perspective in assessing the 2022 EDC impacts on the usage of drugs of abuse. MDMA has low to moderate median risk quotient ranging from 0.07 to 6.1, indicating ecological concerns. This study demonstrated that surface water analysis can capture changes in illicit drug use pattern during large music events.

Graphical abstract

Combining core points and cluster-level semantic similarity for self-supervised clustering

Abstract

Contrastive learning utilizes data augmentation to guide network training. This approach has attracted considerable attention for clustering, object detection, and image segmentation. However, previous studies have ignored the impact of false-negative pairs, resulting in the dissimilarity of the semantic representations of the same cluster. Some researchers have attempted to address this problem; however, only considering the image level has provided unsatisfactory results. To this end, we propose a novel feature extraction algorithm suitable for clustering, combining core points and semantic similarity at the cluster level to restructure positive and negative pairs. Specifically, the core points consisting of the n-nearest neighbors of the cluster center are considered the semantic sample relations of the cluster. This information is explored to reconstruct semantic positive and negative pairs to maximize intra-cluster similarity and inter-cluster variability. More accurate cluster centers offer a sub-optimal initialization for updating the feature model and clustering assignment, which is optimized by the expectation-maximization framework. Extensive experiments conducted on six benchmark datasets show promising clustering performances with relatively few training epochs. The proposed method outperforms the best baseline by 4 \(\%\) (1.5 \(\%\) ) on CIFAR-100 (CIFAR-10). The CPCS code is open-sourced at https://github.com/Cappuccino-Sugar/CPCS.

An Examination of Inquiry-Based Project Learning in Early Childhood Settings in Aotearoa/New Zealand

Abstract

Inquiry-based project learning is an internationally recognised pedagogical approach where children work collaboratively to research and discover the answers to their questions through discussion, representation, and evaluation. This paper explores the findings from Phase One of a qualitative study examining how this approach has been interpreted in early childhood settings in Aotearoa/New Zealand. The findings from an online questionnaire sent to all settings registered on the New Zealand national data base revealed that the international discourse surrounding this approach has been a key influence in this context. There was, however, also evidence that more localised approaches that value indigenous knowledges, in alignment with the national early childhood curriculum, Te Whāriki (Te Whāriki. He whāriki mātauranga mō ngā mokopuna o Aotearoa: Early childhood curriculum. Ministry of Education. https://www.education.govt.nz/assets/Documents/Early-Childhood/Te-Whariki-Early-Childhood-Curriculum-ENG-Web.pdf) have been developed. Whilst participants identified pedagogical and practical challenges of undertaking inquiry-based approaches, the educational value of this approach for children was also strongly championed.

Youth Development in the Pacific: A Decade in Review

Abstract

Background

Historical trauma and cultural loss resulting from colonialism have contributed to educational and health disparities among Pacific youth. Recognizing the protective factors is essential for mitigating disparities and enhancing the overall well-being of these youth.

Objective

This review provides evidence about the current state of youth development among Pacific youth.

Methods

We conducted a systematic review of the literature published between 2010 and 2020, including the fields of education, social, psychological, and medical sciences. We employed qualitative data analysis of 35 peer-reviewed studies.

Results

The majority (69%) of the studies focused on program interventions among 10–19-year-old youth at-risk primarily in New Zealand among Māori (51%) and in the U.S. among Native Hawaiians and Pacific Islanders (46%). Health interventions were common in Hawai‘i, while the New Zealand studies focused more on measuring youth resilience. Among the three outcomes identified, health/well-being was the most studied area, followed by social-emotional, and cognitive development. The outcomes suggest mainly positive effects on health and well-being, socio-emotional, and cognitive development related to Pacific youth.

Conclusions

While the last decade has seen a growth of culturally anchored programs, more research is needed to account for wider social, economic, and political dynamics that impact youth development, which was largely unaccounted for in the extant studies. There is a need for broader developmental frameworks that would, first, align with the context and culture of the youth’s community, and second, expand our horizon of the developmental patterns as they occur in diverse sociocultural contexts.

Socioemotional Learning in Early Childhood Education: Experimental Evidence from the Think Equal Program’s Implementation in Colombia

Abstract

In this article we experimentally evaluate Colombia’s Think Equal program, which teaches socioemotional skills to children ages 3 to 6. Given the context of COVID-19, the original design was adapted as a hybrid model, alternating in-person and remote instruction and engaging families in the implementation of the curriculum. We found that the program had positive effects on children’s prosocial behavior, self-awareness, and cognitive learning. The intervention also had an impact on the education center’s personnel (community mothers) and caregivers implementing the activities. Treated community mothers had higher levels of empathy, lower negative health symptoms, better pedagogical practices, and a closer relationship with the children’s caregivers compared with those in the control group. Treated caregivers had better stimulation practices and lower negative health symptoms compared with those in the control group. These findings suggest that a well-designed intervention has the potential to develop socioemotional skills in children at an early age and, at the same time, to develop capacities in those who implement the activities. Our results have important implications for the design, implementation, and evaluation of early childhood socioemotional learning programs and provide novel evidence about the challenges faced by interventions combining face-to-face and remote learning.

Digital screening for mental health in pregnancy and postpartum: A systematic review

Abstract

Purpose

This systematic review aimed to determine if digital screening for mental health in pregnancy and postpartum is acceptable, feasible and more effective than standard care (paper-and pen-based screening or no screening). The second aim was to identify barriers and enablers to implementing digital screening in pregnancy and postpartum.

Method

OVID MEDLINE, PsycINFO, SCOPUS, CINAHL, Embase, Web of Science, Joanna Briggs Database and All EMB reviews incorporating Cochrane Database of Systematic Reviews (OVID) were systematically searched for articles that evaluated digital screening for mental health in pregnancy and postpartum between 2000 and 2021. Qualitative articles were deductively mapped to the Theoretical Domains Framework (TDF).

Results

A total of 34 articles were included in the analysis, including qualitative, quantitative and mixed-methods studies. Digital screening was deemed acceptable, feasible and effective. TDF domains for common barriers included environmental context and resources, skills, social/professional role and identity and beliefs about consequences. TDF domains for common enablers included knowledge, social influences, emotion and behavioural regulation.

Conclusion

When planning to implement digital screening, consideration should be made to have adequate training, education and manageable workload for healthcare professionals (HCP’s). Organisational resources and support are important, as well as the choice of the appropriate digital screening assessment and application setting for women. Theory-informed recommendations are provided for both healthcare professionals and women to inform future clinical practice.

Totally Administered Heteronomy: Adorno on Work, Leisure, and Politics in the Age of Digital Capitalism

Abstract

This paper aims to demonstrate the contemporary relevance of Adorno’s thought for business ethicists working in the critical tradition by showing how his critique of modern social life anticipated, and offers continuing illumination of, recent technological transformations of capitalism. It develops and extrapolates Adorno’s thought regarding three central spheres of modern society, which have seen radical changes in light of recent technological developments: work, in which employee monitoring has become ever more sophisticated and intrusive; leisure consumption, in which the algorithmic developments of the culture industry have paved the way for entertainment products to dominate us; and political discourse, in which social media has exacerbated the anti-democratic tendencies Adorno warned of in the mid-twentieth century. We conclude by presenting, as a rejoinder to these developments, the contours of an Adornian ethics of resistance to the reification and dehumanisation of such developments.

Indigenous Ecological Knowledge: a Transformative Approach to Biodiversity Legislation in Nigeria

Abstract

Indigenous communities worldwide have cultivated and preserved invaluable ecological knowledge on biodiversity conservation long before the formalisation of scientific inquiry. Rooted in familial intimacy with nature and an acute ability to discern subtle micro-changes, these communities profoundly understand the patterns and processes shaping their natural world. In Nigeria, a nation boasting diverse indigenous peoples and rich biodiversity, this unique knowledge system finds limited recognition within the current legal framework on biodiversity conservation. In response to the persistent decline of biodiversity within and beyond protected areas in the country, the paper argues for a shift grounded in integrating indigenous ecological knowledge(I.E.K) into the existing laws and policies on biodiversity conservation. The findings of this paper demonstrate the need for a transformative change- one demanding a fundamental reorganisation in the design, implementation, and enforcement of biodiversity policies in the country to prioritise the rights and agency of indigenous peoples and local communities in biodiversity policies. It submits that by acknowledging and incorporating indigenous knowledge into legal frameworks, the country can effectively combat biodiversity loss and foster a more inclusive, sustainable approach that aligns with the vision of the country and the global conservation goals.

“What Are You Doing Here?”: Examining Minoritized Undergraduate Student Experiences in STEM at a Minority Serving Institution

Abstract

Prior research has demonstrated that women and racial minority undergraduate students experience stereotype threat in unwelcoming STEM classrooms in predominantly White institutions. Drawing from focus group and journal entry data with Latinx and African American undergraduate students (N = 52) majoring in a STEM field at an institution that holds both Hispanic Serving Institution (HSI) and AANAPISI designations in Southern California, we find that Latinx and Black undergraduate students narrate exclusion from faculty and peers in four main ways: (1) exclusionary STEM classroom culture fomented by faculty, (2) study group stereotype threat, (3) nuances in Black student undergraduate experiences, and (4) unaddressed gendered discrimination. We find that Latinx and African American undergraduates enrolled at a minority serving institution highlight that STEM faculty foment stereotype threat in their classroom culture, which trickles down to students and negatively impacts their ability to develop the necessary social capital networks with both faculty and peers to succeed.