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Adverse childhood experiences (ACEs) are associated with physical and mental health difficulties in adulthood. This study examines the associations of ACEs with functional impairment and life stress among military personnel, a population disproportionately affected by ACEs. We also evaluate the extent to which the associations of ACEs with functional outcomes are mediated through internalizing and externalizing disorders.
Methods
The sample included 4,666 STARRS Longitudinal Study (STARRS-LS) participants who provided information about ACEs upon enlistment in the US Army (2011–2012). Mental disorders were assessed in wave 1 (LS1; 2016–2018), and functional impairment and life stress were evaluated in wave 2 (LS2; 2018–2019) of STARRS-LS. Mediation analyses estimated the indirect associations of ACEs with physical health-related impairment, emotional health-related impairment, financial stress, and overall life stress at LS2 through internalizing and externalizing disorders at LS1.
Results
ACEs had significant indirect effects via mental disorders on all functional impairment and life stress outcomes, with internalizing disorders displaying stronger mediating effects than externalizing disorders (explaining 31–92% vs 5–15% of the total effects of ACEs, respectively). Additionally, ACEs exhibited significant direct effects on emotional health-related impairment, financial stress, and overall life stress, implying ACEs are also associated with these longer-term outcomes via alternative pathways.
Conclusions
This study indicates ACEs are linked to functional impairment and life stress among military personnel in part because of associated risks of mental disorders, particularly internalizing disorders. Consideration of ACEs should be incorporated into interventions to promote psychosocial functioning and resilience among military personnel.
Anesthesiologists are broadly trained members of the health care workforce, managing patients daily using advanced stabilization/resuscitative techniques. They work in a collaborative, team-based model and lead multidisciplinary teams. Their work includes prioritizing patients according to the complexities of their disease presentations, and threats to life and limb. Trauma care is a regular part of the anesthesiologist’s job. The presence of anesthesiologists is required in hospitals to achieve the designation “level 1” trauma center. Anesthesiology is a specialty known for promoting safe practice principles and improving quality of care, utilizing crisis resource management and implementing cognitive aids. Despite these skillsets, anesthesiologists are generally overlooked in disaster preparedness. The number of trained anesthesiologists is similar to that of emergency medicine physicians, and they are nearly twice as abundant as general surgeons. In countries outside the US, anesthesiologists are often included in the pre-hospital team.
The purpose of this article is to emphasize the skillsets of anesthesiologists and to advocate for their inclusion in disaster preparedness teams. Due to their presence and comfort throughout the hospital system, broad training in emergent and elective cases, resuscitation skills, procedural skills, communication skills, daily triage, and team management, anesthesiologists should be considered essential leaders during mass casualty incident preparation and response.
This study investigates heritage speakers (HSs) of Spanish in the U.S. and potential areas of divergence in speech from homeland speakers. To examine the relative contribution of prosody and segments in perceived heritage accent, we conducted an accent rating task with speech samples of second language learners (L2s), HSs and homeland speakers presented in three conditions: original, prosody-only and segments-only. The stimuli were rated by two groups: HSs and homeland speakers. The results revealed that HSs and homeland speakers had similar global accent perceptions, rating HSs as more native-like than L2s but less native-like than homeland speakers. We found that both rater groups aligned with a dominant language ideology of Spanish; speakers who were judged as more native-like were perceived as residing in a Spanish-speaking country. Our findings also demonstrate that prosody contributes more to perceived heritage accent than segments, while segments contribute more to L2 foreign accent than prosody.
Inequality can increase the risk of poor mental health. Objective measures explain the effects of socioeconomic disparities, but individuals may perceive inequality differently.
Aim
We aimed to investigate the association between the perception of economic inequality and depressive symptoms and suicide ideation.
Method
We used data from the Survey of Korean Youths’ Lives, a nationally representative cross-sectional study of 14 918 young adults aged 19−34 years in South Korea. Multivariate logistic regression analysis was conducted to assess the association between perceived economic inequalities (i.e. income inequality and inequality of intergenerational mobility) and depressive symptoms/suicide ideation. Additionally, subgroup analyses were performed based on objective and subjective income levels.
Results
Young adults with a high perception of economic inequality were more likely to experience depressive symptoms and suicide ideation. For example, those with a high perception of intergenerational mobility inequality had higher odds of depressive symptoms (odds ratio 1.82, 95% CI 1.49, 2.23) and suicide ideation (odds ratio 1.87, 95% CI 1.35, 2.60). Statistical evidence showed no interaction between the perception of inequalities and income, suggesting that a high perception of inequalities is associated with depressive symptoms and suicidal ideation, regardless of income. Nevertheless, the strongest association with poor mental health was observed in those with high perceived inequality and low income.
Conclusions
This study shows that the way young adults perceive economic inequality could affect their depressive symptoms and suicidal ideation. The findings highlight the importance of reducing these perceptions and addressing economic inequalities to improve mental health.
Routine immunization programs may reduce antibiotic use, but few studies have comprehensively examined their impact on antibiotic utilization. We aimed to explore temporal trends in vaccination and antibiotic use among young children in the United States.
Design:
Ecological study using the Merative® MarketScan Commercial Claims and Encounters database.
Methods:
We analyzed claims data on pediatric vaccine uptake (pneumococcal conjugate, Haemophilus influenzae type b, diphtheria-tetanus-pertussis, and influenza) and antibiotic prescriptions and antibiotic-treated respiratory tract infections among US children <5 years during 2000–2019. Vaccination status was assessed annually, and children were categorized based on receipt of all four vaccines, 1–3 vaccines, or no vaccines. Antibiotic prescriptions were classified by spectrum and drug class. Respiratory infections included otitis media, pharyngitis, pneumonia, sinusitis, and viral infections.
Results:
Among 6.7 million children, vaccine uptake increased from 32.5% receiving all four vaccines in 2004 to 66.8% in 2019. During this period, overall antibiotic prescriptions decreased from 1.89 to 1.01 per person-year, with the greatest reductions in macrolides (73.3%) and broad-spectrum antibiotics (57.0%). Antibiotic-treated respiratory tract infections declined from 2.43 to 1.61 episodes per person-year, with the largest decreases in sinusitis (64.7%) and pharyngitis (39.8%).
Conclusions:
The findings suggest a temporal association between routine childhood immunization uptake and reduced antibiotic utilization. Although immunization programs are primarily aimed at protecting children from vaccine-preventable diseases, their potential role in complementing antimicrobial stewardship efforts and other factors influencing antibiotic reduction warrants further investigation through more rigorous study designs.
This chapter draws on digital media created in and for the Australian context to show how dimensions of interculturality as a process can be manifested in contexts of teaching and learning through the creation and playing of Indigenous cultural games. It outlines four cultural design approaches that not only bring into creation interculturally produced digital media that students can engage in but are also exceptional exemplars of digital media that engage students in developing their own intercultural understandings through exploration and discussion with educators and peers. Through these examples, the chapter aims to show (1) the importance of understanding “culture” or the “intercultural” as dynamic and relational, not as something that is pre-established and “out there”; and (2) the affordances and constraints of digital technologies in engaging teachers and learners in experiencing interculturality.
A linear stability model based on a phase-field method is established to study the formation of ripples on the ice surface. The pattern on horizontal ice surfaces, e.g. glaciers and frozen lakes, is found to be originating from a gravity-driven instability by studying ice–water–air flows with a range of water and ice thicknesses. Contrary to gravity, surface tension and viscosity act to suppress the instability. The results demonstrate that a larger value of either water thickness or ice thickness corresponds to a longer dominant wavelength of the pattern, and a favourable wavelength of 90 mm is predicted, in agreement with observations from nature. Furthermore, the profiles of the most unstable perturbations are found to be with two peaks at the ice–water and water–air interfaces whose ratio decreases exponentially with the water thickness and wavenumber.
Although some modern popular songs are deliberately composed for the purpose of commentary or protest, most are produced for commercial reasons. However, such songs may nonetheless be adopted by political, cultural, and social movements, and in these cases, fans’ participatory meaning-making has an important role in the songs’ new purpose. Taking the 1935 Korean ballad ‘Tears of Mokp’o’ as a representative example, this article traces how the melancholy love song acquired successive layers of meaning against the backdrop of changing politico-economic contexts throughout the twentieth century. Drawing on political, popular music, and sports histories, I first examine how ‘Tears of Mokp’o’ became known as an anti-colonial anthem under Japanese rule, a position that persisted in postwar South Korea. I then investigate the ways in which fans of the Haitai Tigers, a professional baseball team, utilized the song to express a complex set of emotions and commitments regarding their politically oppressed and economically neglected home region of Chŏlla. Against the backdrop of their traumatic memories of the 1980 Kwangju Uprising, Haitai fans, through their collective singing of ‘Tears of Mok’po’ in stadiums during games, transformed it from a colonial-era pop hit/anti-colonial anthem into a baseball fight song that expressed their spirit of regional insubordination in the 1980s and 1990s. Entering the twenty-first century, ‘Tears of Mok’po’ no longer played the same role for the Tigers and their fans, and it receded into historical memory. This change in meaning and association shows how the political and historical meaning-making of popular songs can be constructed, reintegrated, and even dismissed.
Depression is a complex mental health disorder with highly heterogeneous symptoms that vary significantly across individuals, influenced by various factors, including sex and regional contexts. Network analysis is an analytical method that provides a robust framework for evaluating the heterogeneity of depressive symptoms and identifying their potential clinical implications.
Objective:
To investigate sex-specific differences in the network structures of depressive symptoms in Asian patients diagnosed with depressive disorders, using data from the Research on Asian Psychotropic Prescription Patterns for Antidepressants, Phase 3, which was conducted in 2023.
Methods:
A network analysis of 10 depressive symptoms defined according to the National Institute for Health and Care Excellence guidelines was performed. The sex-specific differences in the network structures of the depressive symptoms were examined using the Network Comparison Test. Subgroup analysis of the sex-specific differences in the network structures was performed according to geographical region classifications, including East Asia, Southeast Asia, and South or West Asia.
Results:
A total of 998 men and 1,915 women with depression were analysed in this study. The analyses showed that all 10 depressive symptoms were grouped into a single cluster. Low self-confidence and loss of interest emerged as the most central nodes for men and women, respectively. In addition, a significant difference in global strength invariance was observed between the networks. In the regional subgroup analysis, only East Asian men showed two distinct clustering patterns. In addition, significant differences in global strength and network structure were observed only between East Asian men and women.
Conclusion:
The study highlights the sex-specific differences in depressive symptom networks across Asian countries. The results revealed that low self-confidence and loss of interest are the main symptoms of depression in Asian men and women, respectively. The network connections were more localised in men, whereas women showed a more diverse network. Among the Asian subgroups analysed, only East Asians exhibited significant differences in network structure. The considerable effects of neurovegetative symptoms in men may indicate potential neurobiological underpinnings of depression in the East Asian population.
The purpose of the South African Competition Act is to resolve the present problems of inequality by emphasizing its multiple goals, which differ from those of other countries. Its objectives broadly contain efficiency, state economic development and consumer welfare. In addition, the ideas of providing opportunities for small businesses and promoting a greater spread of ownership among different groups indicate its goal of favouring or protecting weak trading parties or certain groups of people. To achieve the aim of equity and fairness, South African competition law should be vigorously applied, but the existing substantive provisions may not fulfil the task of moving towards an equal and fair society. A comparative study of competition law may help to discover a proper model and a better solution for the problems of unequal economic power in South Africa.
Holistic frameworks of mental health outline that a focus on psychopathology does not represent an optimal approach to defining, measuring and treating mental health. Rather, theoretical, empirical, and applied psychological efforts should incorporate psychological well-being (PWB). Studies of PWB have overwhelmingly focused on adult populations, rendering a translation down to adolescence difficult. The current study explores the between-person, as well as within-person short-term, prospective relations between psychopathology and wellbeing within a community sample of adolescents (i.e., 553 youth aged 12 – 18, mean age: 14.97 years, 51.2% Male, 40.7% of participants identified as Hispanic (225 individuals), 38.5% identified as White (213 individuals), and 35.6% identified as Black (197 individuals), 3-wave, 1-year survey). Results demonstrated significant, negative between-person relations between psychopathology and PWB (bPHQ = −0.25, SE = 0.11, p = 0.021, bVDS = −0.39, SE = 0.15, p = 0.011). At the within-person level, consistent positive prospective relations were identified for violent-delinquent behaviors and PWB, such that increases in individual levels of violent-delinquent behaviors tended to forecast higher levels of PWB at the next follow-up (bPWBW2 = 0.21, SEPWBW2 = 0.076, p < 0.01; bPWBW3 = 0.14, SEPWBW3 = 0.051, p < 0.01). At the within-person level, prospective relations between depressive and PWB were not identified. Gender and racial/ethnic identities did not moderate findings.
Chinese immigrants living in Western countries are at a higher risk of developing chronic diseases compared to those in China, due to the development of unhealthy dietary patterns during the process of acculturation(1). Australia, with 2.3% of its population being Chinese-born(2), serves as a representative country to explore Chinese immigrants’ food choice determinants. Food choice determinants have been widely researched, with numerous factors identified such as affordability, taste preferences and hunger/satiety. Contento (2018) developed a comprehensive framework which identified and categorised over 30 determinants into four socio-ecological groups(3). Therefore, the focus of current research is not the identification of food choice determinants but to explore the interactions among these determinants. Understanding the cultural influence on food choice is vital for target groups with a shared ethnic background. This study aimed to qualitatively explore the similarities and differences in food choice determinants between Chinese people in mainland China and those living in Australia. Ethical approval for this study was obtained from Monash University Human Research Ethics Committee. Eighteen participants were recruited for semi structured in-depth interviews from June 2021 to March 2022, with eight from Australia and ten from mainland China. Convenience and snowball sampling methods were employed to ensure a diverse sample regarding socio-economic background, occupation, health status, age, and education level. Interviews were conducted in Mandarin via in-person or video/voice calls and were audio-recorded and transcribed verbatim. Thematic analysis and investigator triangulation were used for data analysis. Four themes were identified. (a) Food choice determinants were influenced by nutrition perceptions and personal food philosophy. Chinese Australian immigrants were influenced by Western nutrition beliefs to a greater extent than their counterparts living in mainland China. Non-scientific or controversial nutrition beliefs were common. Personal food philosophy (e.g., eating food is for survival only, or for enjoyment, or for health) profoundly influences food choices. (b) Chinese people adjusted their dietary habits in response to clinical symptoms or self-observed physiological changes, such as, gaining weight or digestive issues. (c) Convenience was a predominant food choice determinant due to factors like long working hours, lack of motivation to cook, lack of cooking skills, time restrictions, and viewing cooking as a chore. (d) Different food environments in China and Australia lead to distinctive food choices. Chinese Australians were more price-sensitive, had more food safety concerns, and cooked more frequently at home than mainland Chinese, due to differences in food affordability, accessibility and information exposure between these two countries. Importantly, nostalgia for childhood foods had a unique influence on certain food choice behaviours in Chinese Australians. These cultural characteristics in food choice determinants should be considered by health educators, nutrition professionals, and policymakers when developing culturally appropriate health interventions for Chinese people.
Optimal nutrition supply to the developing foetus is paramount in achieving appropriate foetal growth and development. The Australian dietary guidelines advise about the amounts and types of foods for pregnancy(1). However, previous studies in reproductive aged women(2) and in pregnant women(3) showed suboptimal adherence to dietary recommendations. There is no evidence on the experience of sourcing nor uptake of the dietary guidelines among pregnant women. The aim of this study is to qualitatively explore women’s knowledge and understanding of nutrition information for pregnancy, including the current Australian dietary guidelines for pregnancy. Twelve pregnant women were recruited from a longitudinal study from the first through third trimester of pregnancy. Purposive sampling was adopted with an intention to recruit for diverse health information seeking habits. Semi-structured interviews were conducted with women at different trimesters, transcribed verbatim, and analysed thematically. Three themes were generated regarding information sourcing, uptake and evaluation. (i) Women had limited knowledge about the pregnancy dietary guidelines, leaving them to source pregnancy related nutrition information elsewhere. (ii) Women described other healthy eating advice that contributed to confusion and potential incompatibility with their dietary beliefs and lifestyle practices. (iii) Women shared that they were capable of seeking and evaluating the identified dietary advice, but the inconsistency across information sources contributed to over-cautious behaviour and dietary restrictions. Our findings suggest there is a general lack of awareness of the official dietary guidelines for pregnancy. To optimise pregnancy nutritional intake, efforts should be made to increase utilisation of the Australian dietary guidelines for pregnancy and to support uptake of dietary advice among pregnant women.
The obesity prevalence among the Chinese population has increased more than three-fold over the last twenty years.(1) A cross-sectional study involving 15.8 million Chinese adults revealed that in 2023 one in every two Chinese adults was categorised as overweight or obese.(2) Chinese individuals face a higher health risk of developing chronic disease at comparable Body Mass Index levels to Caucasians.(3) Thus, it is urgent to address the increasing obesity prevalence in this population. People’ s perception towards obesity is likely to play an important role in influencing their weight management behaviour.(4) For Chinese people, the unique Confucianism ideology, collectivist society, and modern mass media information exposure may have a profound influence on how Chinese people develop their perceptions about weight issues. It is therefore valuable to understand Chinese people’s obesity-related perceptions as this may inform more culturally appropriate interventions for weight management. To the authors’ knowledge, this is the first bilingual systematic review which aimed to synthesise published literature exploring the perceptions of Chinese adults towards overweight and obesity. Four English databases and two Chinese databases (Medline, APA PsycINFO, Social Science Premium Collection, Scopus, Wanfang Chinese Journal Database, and Chinese Electronic Periodical Services) were searched from inception to 17 Jun 2023. Studies were included if they were published in English or Chinese, investigated perceptions towards overweight and obesity, and focused on Chinese adults living in or outside of Mainland China. All retrieved citations were screened by two reviewers independently. A narrative synthesis method was employed. Forty-eight studies (n = 20 in English, n = 21 in simplified Chinese, n = 7 in Traditional Chinese) were included, involving n= 73910 participants. Females were more often researched. Also, the overall sample consisted more younger and more highly educated people, with 22 studies including solely university students. The collective quality or risk of bias of the studies was suboptimal. Three overarching themes emerged from this review: (i) Chinese adults tend to misperceive their weight status, largely stemming from limited awareness of BMI and societal norms idealizing thinness, leading to high dissatisfaction with body weight and high motivation to pursue weight loss. Females perceived a stricter weight ideal than males; (ii) Despite a pronounced motivation for weight management, study participants lacked practical knowledge regarding sustainable strategies. Non-scientific weight-loss methods and unproductive perceptions were prevalent among this population; (iii) Chinese adults perceived dealing with obesity as a lonely journey, influenced by the pervasive negative societal attitude towards obesity and the prevailing mindset emphasizing personal responsibility for weight-related issues. This review provides a comprehensive profile of perceptions towards obesity among Chinese adults over the last two decades and discusses methodology implications and future research directions.
In aerodynamic and hydrodynamic devices and locomotive organisms, passive appendages have practical purposes such as drag reduction and flow control. Although these appendages also affect the dynamics of freely falling bodies, underlying principles of their functions remain elusive. We investigate experimentally the dynamics of a falling sphere with a filament appended on its rear side by varying the ratio of filament length to sphere diameter ($l/D=0{-}3.0$) and sphere-to-fluid density ratio ($\rho _s/\rho _f= 1.06{-}1.36$), and maintaining a similar dimensionless moment of inertia ($I^* \approx 0.96$). At the Reynolds number of $O(10^3)$, a sphere without any filament exhibits vertical descent. However, the falling of the sphere with a filament is accompanied by periodic horizontal displacements, and the degree of zigzag motion is maximised under specific filament length. The filament induces periodic rotation of the sphere by shifting the centre of mass of the entire model and through the hydrodynamic interaction of the filament with the surrounding fluid. The rotation of the sphere increases the drag force acting on the model, reducing tangential velocity along the trajectory by 14 % compared to a plain sphere. Furthermore, the sphere rotation enhances the lift force normal to the trajectory, extending trajectory length by 5 %. These combined effects improve falling time over a certain vertical distance by 20 % compared to the plain sphere. With increasing sphere density, the effects of the filament on the falling dynamics weaken, because the offset distance between the centre of mass of the model and the geometric centre of the sphere becomes smaller.
Scalar dissipation rate (SDR) evolution in a stopping turbulent jet was analysed using direct numerical simulations and a theoretical approach. After the jet is stopped, a deceleration wave for the SDR propagates downstream with a speed similar to that for axial velocity. Upstream of the deceleration wave, mean centreline SDR becomes proportional to axial distance, and inversely proportional to the square of time. After passing of the deceleration wave, normalised radial profiles of SDR and its axial, radial and azimuthal components reach self-similar states, denoted decelerating self-similar profiles, which are different from their steady-state counterparts. Production and destruction terms in the mean SDR transport equation remain dominant in the decelerating self-similar state. The theoretical approach provides an explicit prediction for the radial profile of a turbulent fluctuation term of the mean SDR transport equation. Three turbulent SDR models are validated, and modifications suitable for the decelerating jet are proposed, based on a self-similarity analysis.