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Global climate-finance debates increasingly emphasize tensions between donor competitiveness and environmental responsibility. This paper examines how trade competition shapes the allocation of bilateral environmental official development assistance (BEODA). We develop a partial-equilibrium model showing that aid which lowers recipient production costs can intensify competitive pressure on donor markets, reducing incentives to provide such aid. Using data on 29 OECD donors and 116 non-OECD recipients from 2015–2019, we test whether donors adjust BEODA in response to trade competition. The analysis distinguishes between general BEODA and projects targeting energy efficiency, which more directly reduce marginal costs. Across linear, Tobit, and probit models with multiple fixed effects, we find that donors allocate less BEODA to more competitive recipients, with the effect nearly twice as strong for energy-saving projects. These results indicate that donor concerns over competitiveness constrain environmentally beneficial aid, underscoring a central tension between national economic interests and global climate goals. © 2026 Informa UK Limited, trading as Taylor & Francis Group.

The Alder–Andrews Theorem, a partition inequality generalizing Euler’s partition identity, the first Rogers–Ramanujan identity, and a theorem of Schur to d-distinct partitions of n, was proved successively by Andrews in 1971, Yee in 2008, and Alfes, Jameson, and Lemke Oliver in 2010. While Andrews and Yee utilized q-series and combinatorial methods, Alfes et al. proved the finite number of remaining cases using asymptotics originating with Meinardus together with high-performance computing. In 2020, Kang and Park conjectured a “level 2” Alder–Andrews type partition inequality which relates to the second Rogers–Ramanujan identity. Duncan, Khunger, the second author, and Tamura proved Kang and Park’s conjecture for all but finitely many cases using a combinatorial shift identity. Here, we generalize the methods of Alfes et al. to resolve nearly all of the remaining cases of Kang and Park’s conjecture. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2026.

INTRODUCTION: Individuals with substance use disorders (SUDs) are at increased risk for sleep disturbances, creating a bidirectional relationship that may heighten relapse risk. While polysomnography is the gold standard for measuring sleep, many studies have used actigraphy, a noninvasive, wrist-worn device that estimates rest-activity patterns and sleep-wake characteristics. Despite its utility, the use of actigraphy in populations with SUDs remains limited, and findings vary across substances and methodologies. This protocol outlines a systematic review and meta-analysis aiming to synthesize evidence on actigraphy-derived sleep outcomes across various substances. METHOD AND ANALYSIS: We will include peer-reviewed observational or interventional studies involving individuals aged 18 or older with a diagnosis of substance use (e.g., alcohol, benzodiazepines, cannabis, cocaine, opioids, methamphetamine, or nicotine) who use actigraphy to assess sleep compared to matched controls. Studies will be excluded during screening if they do not use actigraphy, do not include populations with SUDs, or focus on participants younger than 18. There will be no restrictions on location, setting, or language. Databases to be searched include PubMed, Scopus, Web of Science, ProQuest, ClinicalTrials.gov, CINAHL, PsycINFO, and Embase. Titles and abstracts will be screened in the first phase, followed by full-text screening using eligibility criteria. At least two independent reviewers will assess risk of bias using the Risk Of Bias In Non-randomized Studies of Exposures (ROBINS-E) tool. A synthesis will summarize key findings, including study characteristics, population differences, and methodological variations. DISCUSSION: This review will offer a clear and comprehensive assessment of the current literature on actigraphy to examine sleep in SUD and to inform future research to study sleep and its implications in SUD populations. PROTOCOL REGISTRATION NUMBER: International Prospective Register for Systematic Reviews (PROSPERO) number CRD420251072028. Copyright: © 2026 Paredes Naveda et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

An Estonian saying holds that everyone has a unique song in their heart. This profound theme resonates throughout the pages of Song of my Soul. This work is not merely a memoir but a visceral journey through the heart of a besieged nation and a family’s unwavering struggle for survival. Rakfeldt’s narrative immerses the reader in the turbulent twentieth century, when Estonia became a pawn in Stalin and Hitler’s brutal power plays, marked by the devastating impact of three successive occupations. The author recounts his family’s harrowing escape to Sweden, their flight through Europe, and the process of building a new life in the West. He weaves together poignant episodes from his parents’ lives in Estonia, which were shattered by the Soviet invasion, forcing them to flee into forests and marshes and live as partisans hunted by Russian death squads. Beyond the historical account, Song of my Soul is a deeply personal journey. Rakfeldt begins to reclaim his ancestral heritage and fill the void left by displacement and loss. He grapples with questions of identity and belonging. This book serves as a testament to the resilience of refugee families and chronicles the suffering of the Baltic people. It resonates with anyone who has faced immigration challenges and with those seeking to understand the lasting strength of the human spirit.

We report on the measurements of directed flow v1 and elliptic flow v2 for hadrons (π±, K±, KS0, p, ϕ, Λ and Ξ−) from Au+Au collisions at sNN = 3 GeV and v2 for (π±, K±, p and p‾) at 27 and 54.4 GeV with the STAR experiment. While at the two higher energy midcentral collisions the number-of-constituent-quark (NCQ) scaling holds, at 3 GeV the v2 at midrapidity is negative for all hadrons and the NCQ scaling is absent. In addition, the v1 slopes at midrapidity for almost all observed hadrons are found to be positive, implying dominant repulsive baryonic interactions. The features of negative v2 and positive v1 slope at 3 GeV can be reproduced with a baryonic mean-field in transport model calculations. These results imply that the medium in such collisions is likely characterized by baryonic interactions. © 2025 The Authors.

Background: There is a need to develop comprehensive guidelines to encourage the promotion of oral hygiene care among older adults and to assist caregivers in this endeavor, taking into consideration the specific challenges that arise from aging, comorbidities and caregiving. Methods: This review was conducted by searching across relevant literature from meta-databases including Academic Google, PubMed, Scielo and Scopus for studies published from 2020 to 2024. PRISMA guidelines were followed. We included articles that described oral hygiene methods, caregiver education and mechanization status of older adults. Common themes, best practices, and gaps in current guidelines were tracked using extracted and analyzed data. Results: The review revealed multiple factors affecting the oral hygiene of older adults, with themes relating to physical impairment, cognitive dysfunction, and caregiver involvement. Highlighted between the approaches are individualized therapy for oral hygiene, caregiver education, and the use of technology to improve adherence to oral hygiene. Barriers like dental care access, underlying medical conditions complicating dental treatments, and cost considerations were identified. Conclusions: The findings emphasize the necessity of clear recommendations that can help caregivers and advance dental care for older adults. © 2025 by the authors.

Period poverty refers to the lack of access to or affordability of menstrual hygiene supplies such as sanitary products and the inaccessibility of washing facilities, waste disposal and educational materials. Period poverty can significantly affect menstruating individuals’ physical, mental, and reproductive health and emotional wellbeing; negatively impact educational outcomes; cause financial strain; result in absenteeism from work and school; create barriers to healthcare access; and perpetuate poor health outcomes for generations. Barriers to menstrual equity include lack of access to period support, cost, poor sanitary facilities, lack of education, social and cultural stigma, and legal restrictions. Therefore, it is crucial to actively advocate for initiatives to increase access to menstrual hygiene products, raise public awareness, and educate individuals on safe menstrual practices. Approximately 500 million girls and women worldwide and an estimated 16.9 million people in the United States experience period poverty, with the issue being particularly common among marginalized groups such as Black or Hispanic menstruating individuals and those who are homeless, living in poverty, of low income, or attending college. This article investigates the physical, psychological, educational and social impacts of inequitable access to menstrual products, menstrual education, and sanitation facilities among menstruating individuals who are Black, Hispanic or of low income within the United States. We examine the threat this poses to health equity and propose recommendations to address this pervasive issue. © 2025 by the authors.

Background: Mothers and pregnant women who use opioids are particularly vulnerable. Mothers often fear surveillance, stigma, and loss of custody of their children when seeking treatment. Although opioid agonist therapy (OAT) has been shown to be effective, access varies regionally, and not all mothers can cease using opioids. This study compares outcomes of mothers who use opioids in the UK with universal healthcare and OAT access, and mothers in the U.S. with restricted healthcare and OAT access, focusing on their interactions with services. Methods: This is a secondary data analysis of two studies on mothers who use opioids. Data were collected from nine mothers in Scotland (UK) and 20 mothers in New Jersey (US) through ethnographic, longitudinal studies spanning one year. The UK study used a “Learning Alliance” engagement approach, a patient/public engagement model that involves stakeholders in developing objectives and the dissemination of findings. The US study engaged “community-based consultants,” who are paid individuals with lived experience from the study field communities to assist researchers in recruitment and ethnographic fieldwork. Ethical approval was received from review boards. Data were anonymized before analysis, and people with lived experience provided feedback on findings. Grounded theory methods were used for analysis. Results: Findings reveal both convergent and divergent experiences. Mothers in Scotland had more access to healthcare and social housing but faced increased surveillance, while New Jersey mothers often experienced housing insecurity and difficulty obtaining healthcare. Shared challenges included trust issues, stigmatization, inconsistent practitioner engagement, responsibilization, and unclear expectations from child protection services. While Scottish mothers had better access to OAT, both groups faced child custody loss due to unregulated drug use. Mothers in both studies were struggling to meet reunification requirements of abstinence (with or without OAT) within the required time frame. Conclusions: Differing governance structures create persistent challenges across national boundaries. While health practitioners generally support harm reduction strategies, it does not go beyond OAT for mothers. Our findings indicate the need for radical harm reduction approaches with social justice for mothers who use drugs, including safer parental drug use strategies. © The Author(s) 2025.

Objective: To determine the association of sleep duration and disturbances with physical and mental health-related quality of life (HRQoL) in stroke survivors. Design: Cross-sectional analysis of the REasons for Geographic And Racial Differences in Stroke second in-home visit (May 2013-Dec 2016). Setting: Population-based national study in US. Participants: Individuals with adjudicated incident stroke (N=368). Interventions: Not applicable. Main Outcome Measures: Physical and mental HRQoL based on the 12-item Short Form. Sleep measures included sleep duration, difficulty initiating sleep, difficulty maintaining sleep, nonrestorative sleep, and a combined measure based on the latent class model. Logistic regression models were used to investigate the association between sleep variables and HRQoL, adjusting for demographic factors, socioeconomic factors, behavioral factors, and comorbidities. Results: This study included 368 non-Hispanic Black and White stroke survivors. The mean age was 76.0 years (SD=7.9), and 52.7% were men. Stroke survivors with short sleep duration were more likely to have poor physical HRQoL (OR, 2.87; 95% CI, 1.46-5.62) compared with stroke survivors with adequate sleep duration after adjusting for confounding. Similarly, stroke survivors with nonrestorative sleep were 3 times more likely to have poor physical HRQoL (OR, 3.11; 95% CI, 1.28-7.55) compared with stroke survivors with restorative sleep. Conclusions: Non-optimal sleep duration and nonrestorative sleep were associated with higher odds of poor physical HRQoL in stroke survivors. These findings highlight the importance of considering sleep health in post-stroke care. © 2025 American Congress of Rehabilitation Medicine

Heart Work: The Handbook on the Survival and Success of Cultural and Identity Centers in Higher Education highlights the experiences of higher education professionals working in these centers. This handbook offers a blend of personal stories and the latest research on cultural and identity centers, building on Dr. Lori Patton Davis’ 2010 book, Culture Centers in Higher Education: Perspectives on Identity, Theory, and Practice. Since 2010, these centers have navigated significant challenges, including the global COVID-19 pandemic, and have increased focus on institutional racism. The book delves into the experiences and histories of various cultural and identity centers, including Latinx/e Cultural Centers, Asian, Pacific Islander, Middle Eastern Arab and Desi Cultural Centers, Native American/Indigenous Cultural Centers, Black/African American Cultural Centers, Disability Cultural Centers, Lesbian, Gay, Bisexual, Transgender, Queer+ Centers, and Undocumented Student Resource Centers. In light of recent events affecting minoritized populations, it also covers topics such as evolving practices in cultural/identity centers, university politics, and strategies for practitioners to advance and sustain the Heart Work. Heart Work offers community members - especially potential and current practitioners, faculty, and staff in higher education - an understanding of the recent environmental context of cultural and identity centers. As our society evolves, recognizing that identities are not monolithic and embracing intersectionality allows for a deeper understanding of oppression and lived experiences. This handbook aims to bridge the gap by continuing the research and practice of cultural and identity centers in higher education. © 2026 by Emerald Publishing Limited. All rights reserved.

The African Early Pleistocene is a time of evolutionary change and techno-behavioral innovation in human prehistory that sees the advent of our own genus, Homo, from earlier australopithecine ancestors by 2.8-2.3 million years ago. This was followed by the origin and dispersal of Homo erectus sensu lato across Africa and Eurasia between ~ 2.0 and 1.1 Ma and the emergence of both large-brained (e.g., Bodo, Kabwe) and small-brained (e.g., H. naledi) lineages in the Middle Pleistocene of Africa. Here we present a newly reconstructed face of the DAN5/P1 cranium from Gona, Ethiopia (1.6-1.5 Ma) that, in conjunction with the cranial vault, is a mostly complete Early Pleistocene Homo cranium from the Horn of Africa. Morphometric analyses demonstrate a combination of H. erectus-like cranial traits and basal Homo-like facial and dental features combined with a small brain size in DAN5/P1. The presence of such a morphological mosaic contemporaneous with or postdating the emergence of the indisputable H. erectus craniodental complex around 1.6 Ma implies an intricate evolutionary transition from early Homo to H. erectus. This finding also supports a long persistence of small-brained, plesiomorphic Homo group(s) alongside other Homo groups that experienced continued encephalization through the Early to Middle Pleistocene of Africa. © The Author(s) 2025.

There has been a decline in the age at which girls experience menarche worldwide. Research suggests that exposure to endocrine-disrupting chemicals is linked to negative health consequences, including early onset of menarche. This systematic review examined the association between exposure to endocrine-disrupting chemicals (EDCs) and the early onset of menarche. Comprehensive searches of the PubMed, Embase, Web of Science, and Scopus databases were conducted to find relevant studies published from inception to November 2024. Exposure to certain EDCs, such as particulate matter and phthalates, showed significant associations with earlier menarche onset, while exposure to other EDCs (e.g., pyrethroids) was linked to delayed menarche timing. Overall, there were mixed findings in the relationships between various EDC exposures and menarche onset. Few studies investigated how exposure to EDCs and early menarche differed by race and ethnicity. This underscores the need for more studies that examine the relationship between early menarche onset and exposure to endocrine-disrupting substances. Education and policy approaches are also warranted to address this issue. © 2025 by the authors.

Purpose – Equally male/female-owned businesses have been a part of the United States (US) economy and provide a platform for female entrepreneurs, yet these businesses have been understudied in today’s literature. This study examines trends in the performance of equally male/female-owned firms and compares them to female-owned and male-owned businesses. In addition, through social role theory, factors beyond gender are discussed to explain the potential differences in firm performance among various firm ownership groups. Design/methodology/approach – This study uses eight years of US Census data to analyze annual trends and average firm performance for equally male/female-owned, female-owned, and male-owned firms. A one-way analysis of variance (ANOVA) is used to compare the means of the firm performance variables by each ownership group, followed by Tukey’s Honest Significant Difference (HSD) test to assess the significance of differences. Findings – The findings reveal that equally male/female-owned firms perform similarly to female-owned firms, both of which significantly underperform in sales, productivity, and pay when compared to male-owned businesses. This interesting outcome indicates that the presence of a male co-owner does not automatically translate to an increased firm performance and that factors beyond gender influence the trajectory of these businesses. Additionally, the large presence of family-owned firms within the sample of equally male/female-owned firms sheds new insight into family business literature and helps explain the comparable performance patterns with those of female-owned firms. More specifically, both ownership groups, equally male/female-owned and female-owned firms, likely prioritize nonfinancial goals, such as family and work-life integration, potentially at the expense of firm performance. Originality/value – This study is one of few to date that investigates a third firm ownership category in the US market, the equally male/female-owned firms, and compares them based on average performance to two previously studied groups, male-owned and female-owned firms. This article contributes to the body of knowledge by providing insight into the performance of equally male/female-owned businesses through the underpinnings of social role theory, as well as important implications for gender, female entrepreneurship, equal ownership, and family business policy and practice. © 2025 Emerald Publishing Limited