Effects Of Behaviors Research Articles

Effect of Pre-Rolling Strategy and Aging Precipitation Behaviors on Mechanical Properties and Wear Resistance of Biomedical Ti-15Mo Alloy

Effect of Pre-Rolling Strategy and Aging Precipitation Behaviors on Mechanical Properties and Wear Resistance of Biomedical Ti-15Mo Alloy

Bias Sensitivity in Diagnostic Decision-Making: Comparing ChatGPT with Residents.

Diagnostic errors, often due to biases in clinical reasoning, significantly affect patient care. While artificial intelligence chatbots like ChatGPT could help mitigate such biases, their potential susceptibility to biases is unknown. This study evaluated diagnostic accuracy of ChatGPT against the performance of 265 medical residents in five previously published experiments aimed at inducing bias. The residents worked in several major teaching hospitals in the Netherlands. The biases studied were case-intrinsic (presence of salient distracting findings in the patient history, effects of disruptive patient behaviors) and situational (prior availability of a look-alike patient). ChatGPT's accuracy in identifying the most-likely diagnosis was measured. Diagnostic accuracy of residents and ChatGPT was equivalent. For clinical cases involving case-intrinsic bias, both ChatGPT and the residents exhibited a decline in diagnostic accuracy. Residents' accuracy decreased on average 12%, while the accuracy of ChatGPT 4.0 decreased 21%. Accuracy of ChatGPT 3.5 decreased 9%. These findings suggest that, like human diagnosticians, ChatGPT is sensitive to bias when the biasing information is part of the patient history. When the biasing information was extrinsic to the case in the form of the prior availability of a look-alike case, residents' accuracy decreased by 15%. By contrast, ChatGPT's performance was not affected by the biasing information. Chi-square goodness-of-fit tests corroborated these outcomes. It seems that, while ChatGPT is not sensitive to bias when biasing information is situational, it is sensitive to bias when the biasing information is part of the patient's disease history. Its utility in diagnostic support has potential, but caution is advised. Future research should enhance AI's bias detection and mitigation to make it truly useful for diagnostic support.

Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium.

Blood pressure (BP)-lowering effects of structured exercise are well-established. Effects of 24-hour movement behaviors captured in free-living settings have received less attention. This cross-sectional study investigated associations between a 24-hour behavior composition comprising 6 parts (sleeping, sedentary behavior, standing, slow walking, fast walking, and combined exercise-like activity [eg, running and cycling]) and systolic BP (SBP) and diastolic BP (DBP). Data from thigh-worn accelerometers and BP measurements were collected from 6 cohorts in the Prospective Physical Activity, Sitting and Sleep consortium (ProPASS) (n=14 761; mean±SD, 54.2±9.6 years). Individual participant analysis using compositional data analysis was conducted with adjustments for relevant harmonized covariates. Based on the average sample composition, reallocation plots examined estimated BP reductions through behavioral replacement; the theoretical benefits of optimal (ie, clinically meaningful improvement in SBP [2 mm Hg] or DBP [1 mm Hg]) and minimal (ie, 5-minute reallocation) behavioral replacements were identified. The average 24-hour composition consisted of sleeping (7.13±1.19 hours), sedentary behavior (10.7±1.9 hours), standing (3.2±1.1 hours), slow walking (1.6±0.6 hours), fast walking (1.1±0.5 hours), and exercise-like activity (16.0±16.3 minutes). More time spent exercising or sleeping, relative to other behaviors, was associated with lower BP. An additional 5 minutes of exercise-like activity was associated with estimated reductions of -0.68 mm Hg (95% CI, -0.15, -1.21) SBP and -0.54 mm Hg (95% CI, -0.19, 0.89) DBP. Clinically meaningful improvements in SBP and DBP were estimated after 20 to 27 minutes and 10 to 15 minutes of reallocation of time in other behaviors into additional exercise. Although more time spent being sedentary was adversely associated with SBP and DBP, there was minimal impact of standing or walking. Study findings reiterate the importance of exercise for BP control, suggesting that small additional amounts of exercise are associated with lower BP in a free-living setting.

Chinese Doctoral Students Involved in Interdisciplinary Learning Score Higher on Scientific Creativity: The Roles of Teamwork Skills and Collaborative Behaviors

Despite the growing recognition of the value of interdisciplinary learning in doctoral education, there is still a gap in the literature supporting the relationship between it and doctoral students’ scientific creativity in China. Based on a questionnaire survey of 457 doctoral students from the humanities and social sciences on the Chinese Mainland, this study adopted structural equation modeling to examine the relationships among interdisciplinary learning, teamwork skills, collaborative behaviors, and scientific creativity. The results indicated that there was a weak positive correlation between interdisciplinary learning and the scientific creativity of doctoral students. Teamwork skills mediated the relationship between interdisciplinary learning and creativity, while the mediating effect of collaborative behaviors did not hold. Moreover, the relationship between interdisciplinary learning and creativity can also be mediated by the sequential mediation of teamwork skills and collaborative behaviors.

Exercise moderates longitudinal group psychopathology networks in individuals with eating disorders

Individuals with eating disorders (EDs) often engage in exercise no matter potential negative long-term outcomes (e.g., weight loss, injury). Yet exercising may temporarily attenuate ED symptoms, but whether exercise also affects network structure and pairwise associations of ED symptoms remained unclear. We used a novel approach called Moderated Multilevel Graphical Vector Autoregression to estimate changes in psychopathology networks from before to after exercising in ecological momentary assessment data from 102 individuals with EDs across multiple days (M = 22.14, SD = 5.40; range: 6–22 days) at 4 times daily. Between-person and within-person temporal networks were computed, obtaining stable centrality coefficients for temporal networks only. In those, autoregressive effects of several symptoms, including binge-eating, overeating, or weighing oneself, were attenuated when participants previously exercised. Exercise mostly downregulated temporal effects of ED symptoms on other symptoms, including effects of binge eating and other compensatory behaviors on feeling guilty after the most recent meal, vomiting on weighing oneself, and overeating on fear of weight gain. Our study highlights the complex dynamic effects of exercise on ED symptoms in daily life and calls for novel studies investigating mechanisms of exercise to inform treatments targeting detrimental long-term effects of exercise in EDs.

Effect of Organizational Cynicism Behaviors on Nursing Staff Work Embeddedness

Effect of Organizational Cynicism Behaviors on Nursing Staff Work Embeddedness

Addressing data quality issues to assess clinical and epidemiological risk factors for COVID-19 among documented cases in Liberia: a single-centre, retrospective, observational study

IntroductionIdentification of risk factors for severe COVID-19 can help to inform case management in resource-constrained settings. We aimed to rigorously but retroactively address data issues to identify risk factors for...

Unequal effects of adolescent health behaviors on adult cardiometabolic conditions: a cohort study

Abstract Background Health behaviors in adolescence could have a life-long effect on cardiometabolic health and differ by parental socioeconomic conditions. Adopting a life course perspective and a causal inference framework, we aimed to quantify the differential effect of adolescent unhealthy behaviors on adult cardiometabolic conditions by parental financial situation. Methods Using the National Longitudinal Study of Adolescent to Adult Health in the United States (n = 3,772), we estimated conditional causal effect by parental financial situation through inverse probability-weighted marginal structural models. Exposures were adolescent health behaviors (dietary habits, cigarette smoking, alcohol consumption and physical activity) and the effect modifier was parental financial situation (difficulty paying bills vs. no difficulty), both measured at ages 12-19 (1994-1995). Outcomes were cardiometabolic conditions (hypertension, stroke, cardiac failure, diabetes, chronic kidney disease), measured at ages 33 - 43 (2016-2018) using biomarkers and self-reports. Results There were 1,206 participants with cardiometabolic conditions after 20 years of follow-up. Alcohol consumption among adolescents with parental financial difficulty led to 325 more cardiometabolic cases (95% confidence interval: 2 - 647) compared to alcohol consumption by their peers without financial difficulty. This differential effect is driven more by cardiovascular conditions (hypertension, stroke, or cardiac failure) than by metabolic conditions (diabetes or chronic kidney disease). There were no differential effects of dietary habits, cigarette smoking and physical inactivity on the occurrence of adult cardiometabolic conditions. Conclusions Public health initiatives targeting alcohol consumption during adolescence could mitigate socioeconomic inequalities in adult cardiometabolic conditions. Key messages • Socioeconomically disadvantaged adolescents are more susceptible to the long-term detrimental health effects of alcohol consumption. • These susceptible groups may need targeted interventions to mitigate the cardiometabolic effect of alcohol consumption.

Effects of Cognitive Flexibility, Prosocial and Problem Behaviours, Parenting Style and Social Support on Social Adaptation Among Children With Leukaemia: A Structural Equation Modelling Approach.

Leukaemia children often encounter various social adaptation issues stemming from changes in their living environment. Identifying and optimising the factors associated with social adaptation is crucial in improving social adaptation in children with leukaemia. To investigate social adaptation in children with leukaemia and to clarify the impact pathway of cognitive flexibility, problem behaviour, prosocial behaviour, parenting style and social support on social adaptation. Using a convenience sampling method, 264 leukaemia children completed a cross-sectional survey. Data were collected using the Social Adaptation Assessment Scale for Children with Leukaemia, Strengths and Difficulties Questionnaire, Cognitive Flexibility Scale, Short-Egna Minnenav Barndoms Uppfostran and Multi-Dimensional Scale of Perceived Social Support. Structural equation modelling was used to test the influencing factors of social adaptation. Social support directly influenced social adaptation (β = 0.19, p < 0.01) and indirectly influenced social adaptation through prosocial behaviour (β = 0.06, p < 0.01) and problem behaviour (β = 0.18, p < 0.01). Prosocial behaviour (β = 0.17, p < 0.01) and problem behaviour (β = -0.61, p < 0.01) directly influenced social adaptation. Negative parenting directly influenced social adaptation (β = 0.12, p < 0.01) and indirectly influenced social adaptation (β = -0.23, p < 0.01) through problem behaviour. Our finding indicated that there are prominent social adjustment problems in the recovery process of children with leukaemia. These findings suggest that targeted education is needed to enhance social adaptation among children with leukaemia. The final model should serve as a framework to guide intervention research targeting social support and negative parenting to improve the social adaptation of children with leukaemia. During the recovery process, nurses need to regularly follow up on the children's social adaptation and encourage them to participate in social activities to increase social support while providing family guidance based on improving parenting styles. The subjects of this study were children with leukaemia aged 8-18 years. All authors read and approved the final manuscript.

Association of healthy lifestyle on overweight and obesity among adolescents in Luxembourg

Abstract Background Adolescent overweight and obesity are significant public health challenges. Understanding the impact of healthy lifestyle behaviours is crucial for effective intervention strategies. The aim of this study is to analyse the association between healthy lifestyle behaviours with overweight and obesity among adolescents in Luxembourg. Methods The study was based on the HBSC Luxembourg 2022 survey and includes 8415 adolescents aged 11 to 18 years. Adolescents self-reported the frequency of fruit and vegetable consumption, physical activity, height, and body mass. Eating and physical activity behaviours were categorized based on WHO recommendations. Body Mass Index categorization followed International Obesity Task Force criteria. Binomial logistic regression of obesity and overweight with the interaction between healthy diet and physical activity was performed, controlling for age, gender, family affluence, migration background, and family structure. Results The results indicated a significant protective effect of healthy lifestyle behaviours against overweight and obesity. For overweight, adolescents engaging in either fruit and vegetable consumption (OR = 0.829, 95% CI [0.697-0.986]) or physical activity (OR = 0.719, 95% CI [0.566-0.913]) showed reduced odds compared to those with unhealthy behaviours. For obesity, similar associations were observed. Adolescents engaging in physical activity (OR = 0.407, 95% CI [0.235-0.705]) showed reduced odds compared to those with unhealthy behaviours. Combining both behaviours resulted in the lowest risk of obesity (OR = 0.366, 95% CI [0.177-0.760]) and overweight (OR = 0.473, 95% CI [0.340-0.658]). Conclusions Promoting health eating and physical activity behaviours are important strategies for preventing overweight and obesity in youth in Luxembourg. Implementing targeted interventions aimed to promote these behaviours could mitigate the burden of overweight and obesity in this population. Key messages • Healthy lifestyle matters: Fruit and vegetables consumption or regular physical activity significantly reduce the risk of overweight and obesity among adolescents. • Combining behaviours counts: Concurrent engagement in both fruit and vegetables consumption and physical activity offers the greatest protection against overweight and obesity.

What makes proactive behaviors at work effective? Perspectives of health care executives.

Proactive behaviors at work refer to behaviors that are self-starting, future focused, and change oriented. Proactive behaviors are generally thought of as positive and desired and can benefit both the employee (e.g., job promotion) and organization (e.g., innovation). These behaviors can, however, backfire (e.g., due to unintended consequences), reflecting the "initiative paradox." The aim of this study was to investigate, through the perspectives of health care executives, how employees can be more effective when engaging in proactive behaviors. We used the episodic narrative interview method. Health care executives narrated instances of perceived effective and ineffective proactive behaviors among employees. We then performed an inductive qualitative analysis of these episodes to identify emerging themes and dimensions. The effectiveness of proactive behaviors among health care employees is shaped by three dimensions: managerial expectation (in)congruence (e.g., knowledge of expectations, engagement with chain of command), organizational priority (in)congruence (e.g., degree of alignment between individual and organizational benefits), and boundaries of action and change (e.g., nonadherence to regulatory or financial conditions). Among the dimensions, managerial expectations may be the most challenging for employees to navigate. Engaging in proactive behaviors is not a straightforward process. Navigating multiple dimensions is necessary for health care employees to be effective. Employees should be equipped with knowledge on relevant expectations, priorities, and boundaries when engaging in proactive behaviors at work. Health care leaders and managers should aim to clarify and periodically reassess these dimensions to facilitate effective proactive behaviors and to generate benefits for employees and the organization.

The Corrosive Effect of School Administrators as Toxic Leaders on Teacher Accountability

Purpose: To examine teachers' views on the corrosive effect of toxic leadership behaviours of school administrators on teacher accountability. Design/Methodology/Approach: The study group of this research, which uses phenomenology as a qualitative research design, was selected using maximum variation sampling method, which is a type of purposive sampling. This group consists of 20 teachers working in 10 public schools in the central district of Isparta. Data were collected from the teachers through a semi-structured interview form. The collected qualitative data were subjected to contextual analysis through MAXQDA software and visualised. The findings show that the majority of teachers reported that toxic leadership has a detrimental effect on teacher accountability. Findings: Toxic leaders, characterised by behaviours such as micromanagement, lack of empathy, and aggressive communication, were found to cause teacher demotivation, alienation, and professional burnout. In addition, toxic leaders erode teacher accountability by creating a negative and insecure organisational climate. Highlights: Toxic leadership behaviours of school administrators are a critical factor that significantly affects teacher accountability. The various dimensions of this impact are as follows: Decreased teacher motivation, psychological safety and job satisfaction, decreased performance and productivity, impeded professional development, stress and burnout. In addition to these, toxic leadership has a negative impact on school climate. A negative school climate leads to a decrease in teachers' willingness to cooperate and be accountable. This can also negatively impact student achievement because lack of co-operation and support among teachers reduces the quality of education. Therefore, it is important for school administrators to exhibit more positive and supportive leadership behaviours to increase teachers' motivation and strengthen their accountability.

Independent and joint effects of self-reported physical activity and sedentary behaviors on mortality in community-dwelling older persons: a prospective cohort study

BackgroundThis study aims to assess the joint and independent effects of self-reported physical activity and sedentary behavior on mortality in older persons.MethodsA prospective community-based cohort study was conducted to examine physical activity (PA) level and sitting time (ST) in relation to mortality among 1,786 older persons aged 65 years and above. PA was assessed by a checklist of 26 self-reported items about PA and hours per week, and the metabolic equivalent hours/week was derived, and ST was measured by a self-reported item asking the average number of hours spent sitting per day. The participants were divided into four combination groups of PA and ST based on WHO guideline and values found in literature: high PA/short ST group, high PA/long ST group, low PA/long ST group, and low PA/short ST group. Data on death ascertainment were obtained through linkage with the national death datasets and expanded cardiovascular disease (CVD) included cardiovascular disease, diabetes, and chronic kidney disease.ResultsAfter follow-up for a median 11.1 years, 599 mortality cases were recorded, giving a crude all-cause mortality of 32.5/1,000 person-years, CVD mortality of 8.6/1,000 person-years, expanded CVD mortality of 11.9/1,000 person-years, and nonexpanded CVD mortality of 20.8/1,000 person-years. For all-cause, and expanded CVD, the hazards ratios (HRs) for the low PA/long ST group remained significant compared with that for the high PA/short ST group after all covariates were considered [HRs for all-cause mortality: 1.4 [95% confidence interval (CI) 1.1, 1.8]; and expanded CVD mortality: 1.7 (95% CI 1.1, 2.4).ConclusionsThe independent effect of PA and the joint effects of PA and ST are associated with all-cause and expanded CVD death risks. Expanded CVD mortality may be minimized by engaging in PA and reducing sedentary behaviors.

The Effect of Heart Failure Symptom Clusters on Quality of Life: The Moderating Effect of Self-Care Behaviours.

Although heart failure (HF) symptoms affect patients' quality of life (QoL), improving patients' QoL requires certain self-care behaviours. However, the specific role of self-care behaviours in the relationship between HF symptoms and QoL has not been clarified. To evaluate the status of symptom clusters, self-care behaviours and QoL in HF patients, and to analyse and test the moderating effect of self-care behaviours between symptom clusters and QoL. This study is a cross-sectional study. A total of 320 HF patients who treated in thethree hospitals in Chengdu, China, from December 2022 to July 2023 were selected as the research subjects. The patients were evaluated using The General Information Questionnaire, Memorial Symptom Assessment Scale Heart Failure, Self-Care of Heart Failure Index and Minnesota Living with Heart Failure Questionnaire. The statistical analysis methods were exploratory factor analysis, Pearson correlation analysis, hierarchical regression analysis and simple slope analysis. There were five symptom clusters in HF patients: emotional symptom cluster (sadness, anxiety, irritability, feeling nervous), digestive symptom cluster (lack of appetite, dry mouth, weight loss, nausea, abdominal distension), ischemic symptom cluster (dizziness, chest pain, palpitations, fatigue), dyspnoea symptom cluster (difficulty breathing when lying flat, waking up breathless at night, sleep difficulty) and congestion symptom cluster (cough, shortness of breath, oedema). There was a significant correlation between HF symptom group, self-care behaviours and QoL (p < 0.05). Both self-care maintenance (β = -0.262, p < 0.001) and self-care management (β = -0.258, p < 0.001) had a moderating effect between symptom clusters and QoL. There are a variety of symptom clusters in HF patients. Improving the self-care behaviours ability of HF patients is conducive to reducing the impact of HF symptom clusters on QoL. The study used the STROBE checklist for reporting. Medical staff should focus on the impact of HF symptom clusters and self-care behaviours on QoL, and formulate corresponding interventions for HF symptom clusters and self-care behaviours to improve the QoL of patients. The head nurse of the cardiovascular department actively assisted us in collecting questionnaires from HF patients, and all HF patients surveyed participated in this study seriously.

Bridging the gap between entrepreneurial intentions and behavior: examining the role of mindfulness

PurposeThis study investigates the role of mindfulness in the relationship between entrepreneurial intention and behavior.Design/methodology/approachTo investigate the effect of mindfulness on entrepreneurial intention and behavior, we adopt a conceptual framework based on the theory of planned behavior and develop our hypothesis, anticipating that mindfulness has a moderating effect on the entrepreneurial intention–behavior relationship. We conduct an empirical study by administering a survey questionnaire with 329 respondents who attended a training program organized by one of the leading management institutes in India.FindingsWe find a positive effect of entrepreneurial intention and mindfulness on entrepreneurial behavior. Further, mindfulness has a moderating effect on the entrepreneurial intention–behavior relationship.Research limitations/implicationsThe study has a few limitations. It was conducted among unemployed youth who participated in a government-sponsored training program for the promotion of entrepreneurship. Although not all the participants in the program were automatically eligible for government funding for starting a business, their entrepreneurial intention–behavior relationship may vary based on their conditions after the training concluded. This study emphasizes only the relationship between mindfulness and entrepreneurial intention behavior, considering EI and well-being implicit in mindfulness. Other contingent factors might also influence the entrepreneurship intention–behavior relationship, but our argument is that, ultimately, all emotional and rational factors can be subordinated to mindfulness. Hence, future research could be carried out to study the effect of mindfulness practice, entrepreneurial intention and the effectiveness of implementation behavior. Further longitudinal studies could be designed to understand how mindfulness training bridges the gap in the entrepreneurial intention–behavior relationship.Practical implicationsThrough this study, we offer empirical evidence on the role of mindfulness in moderating the intention–behavior relationship in entrepreneurship. Mindfulness makes people more aware of their internal and external environment when they pay attention with a purpose that helps them to regulate their emotions, cognition, novelty seeking and social contexts to sustain the ups and downs in starting a business.Originality/valueThe findings of the study offer new insights into the nuanced association between entrepreneurial intention and behavior through the lens of mindfulness.

Progressing "Positive epidemiology": A cross-national analysis of adolescents' positive mental health and outcomes during the COVID-19 pandemic.

"Positive epidemiology" emphasizes strengths and assets that protect the health of populations. Positive mental health refers to a range of social and emotional capabilities that may support adaptation to challenging circumstances. We examine the role of positive mental health in promoting adolescent health during the crisis phase of the COVID-19 pandemic. We used four long-running Australian and UK longitudinal cohorts: Childhood to Adolescence Transition Study (CATS; analyzed N=809; Australia); Longitudinal Study of Australian Children (LSAC) - Baby (analyzed N=1,534) and Kindergarten (analyzed N=1,300) cohorts; Millennium Cohort Study (MCS; analyzed N=2,490; UK). Measures included: (Pre-pandemic exposure): Positive mental health (parent-reported, 13-15 years) including regulating emotions, interacting well with peers, and caring for others; and pandemic outcomes: psychological distress, life satisfaction, and sleep and alcohol use outside of recommendations (16-21 years; 2020). We used two-stage meta-analysis to estimate associations between positive mental health and outcomes across cohorts, accounting for potential confounders. Estimates suggest meaningful effects of positive mental health on psychosocial outcomes during the pandemic, including lower risk of psychological distress (Risk Ratio [RR]=0.83 95%CI=0.71, 0.97) and higher life satisfaction (RR=1.1, 95%CI=1.0, 1.2). The estimated effects for health behaviors were smaller in magnitude (sleep: RR=0.95, 95%CI=0.86, 1.1; alcohol use: RR=0.97, 95%CI=0.85, 1.1). Our results are consistent with the hypothesis that adolescents' positive mental health supports better psychosocial outcomes during challenges such as the COVID-19 pandemic, but relevance for health behaviors is less clear. These findings reinforce the value of extending evidence to include positive health states and assets.

Peer effects of health behaviors and the moderating role of Internet use among middle-aged and older adults: a nationally representative cross-sectional survey in China.

This study investigates peer effects on the health behaviors of middle-aged and older adult people in China and examines the moderating role of Internet use. A total of 16,188 respondents were selected from the China Health and Retirement Longitudinal Study (CHARLS) 2020 data set. Ordinary Least Squares and Quantile Regression were used to validate the peer effect of health behaviors on middle-aged and older adults, and a moderating effects model was used to test the moderating roles of Internet use and Internet proficiency. Finally, the peer effect was analyzed for heterogeneity according to Internet use preferences. The peer effect had a positive influence on the individual health behaviors of middle-aged and older adult people in China (β = 0.5341, p < 0.001). Middle-aged and older adult people were more sensitive to the average health behavior level of the community when they lived in rural communities and/or had a low level of education. Internet use positively moderated the health behavior peer effect in the older adult population (β = 0.0094, p < 0.1), and Internet proficiency negatively moderated the peer effect of the health behaviors of the middle-aged population (β = 0.1589, p < 0.1). According to the magnitude of the influence of peer effect, the Internet preference type can be ranked from social and entertainment (β = 0.6250, p < 0.01), to cultural and entertainment (β = 0.5835, p < 0.01), to comprehensive (β = 0.4622, p < 0.01). There is a peer effect on the health behaviors of middle-aged and old-aged individuals, in which Internet use plays a moderating role. The construction of healthy communities should be promoted, giving full play to the community's active role in health promotion. Attention should be paid to the health-enabling function of the Internet, encouraging middle-aged and older adult people to use the Internet actively, moderately, and diversely, and making full use of the advantages of short videos for online health education.

Examining mothers' obsessive and compulsive behaviors regarding baby care, cyberchondria level and maternal burnout in the postpartum period: Path analysis.

To examine the effects of postpartum women's obsessive and compulsive behaviors towards the care of their babies and maternal exhaustion levels on cyberchondria. The study, designed as a cross-sectional and correlation-seeking study, included 275 mothers. Data were collected from Turkish mothers with maternal burnout scale (MBS), scale for obsessive and compulsive behavıors of mothers ın the postpartum perıod wıth regard to baby care and cyberchondria severity scale (CSS). A total of 41.8% of the mothers, whose average age was 28.49 ± 5.04, had their first birth, 62.5% of the mothers were feeding their babies with breast milk, and 65.8% had regular sleep. The total mean score of the scales was 24.76 ± 5.15 for T-MBS, 81.19 ± 22.16 for CSS, and 16.11 ± 10.28 for the obsession scale. There was a statistically significant positive relationship between the maternal burnout and postpartum obsession scales and the cyberchondria severity scale. In the present study, mothers in the postpartum period did not show signs of burnout or obsessive-compulsive behaviors in the care of their babies, and their cyberchondria severity scores were at a moderate level.

The impact of residential winter HVAC usage behavior on arthritis in older adults: A PLS-SEM analysis

Environmental factors like temperature and humidity have been shown to influence arthritis symptoms in older adults, and HVAC equipment can regulate indoor environmental parameters. This study aimed to explore the pathways and effectiveness of residential HVAC usage behavior during winter on arthritis conditions. Conducted across four major climate zones in China, this cross-sectional study involved 3579 older adults aged 60–74 years and collected data on demographics, residential environments, lifestyles, and health outcomes. Utilizing Partial Least Squares - Structural Equation Modeling (PLS-SEM), a complex structural equation model (SEM) and an HVAC-Health mediation model was developed to analyze the relationships among influencing factors and health outcomes. Results revealed that socio-economic status, building characteristics, lifestyles, HVAC usage behavior, and indoor environmental exposure significantly affect the frequency of arthritis flare-ups (p < 0.05). Specifically, lifestyles, indoor wet and cold exposures have strong direct effects on health outcomes, with path coefficients of 0.178, 0.155 and 0.143, respectively. Moreover, HVAC usage indirectly influences health through mediators, with cold exposure (β = 0.045, p < 0.001), air pollution (β = 0.025, p < 0.001), and wet exposure (β = 0.012, p = 0.001) ranked in terms of their mediating effects. This research underscores the crucial role of HVAC systems in mitigating arthritis symptoms in older adults, advocating for enhanced implementation of HVAC technologies in senior housing to promote health and well-being. The originality of this study lies in employing the PLS-SEM method to elucidate how the indoor environment—particularly under the premise of HVAC usage—affect arthritis symptoms in older adults.

Electromigration in Cu–Cu joints: Measurement of activation energy and polarity effect

Electromigration (EM) has been a pivotal reliability challenge for interconnects, but there are only few studies on EM in Cu–Cu joints. In this work, accelerated EM tests for the Cu–Cu joints were conducted at three temperatures (150 °C, 179 °C, and 208 °C) and the temperature-dependent failures were discussed. The polarity effect of the grain growth behaviors at the bonding interfaces was observed at the opposite electron flows, which may be attributed to the difference in EM-build-up stress conditions and the divergence in atomic fluxes. Moreover, the activation energy (Ea) extrapolated from the three EM temperatures was derived as 0.9 eV. As compared to the solder joints with same dimensions, the Cu–Cu joints possess more than ten times of time-to-failures (TTFs) under the same EM condition.