Search Results (720)

Background: Parents play a central role in shaping children’s eating behaviors. While previous research has documented associations between parental attitudes and feeding practices, fewer studies have examined how mothers’ own eating styles may contribute to their perceptions of their children’s eating attitudes and behaviors and how these may influence subsequent feeding practices. Objectives: To our knowledge, this is the first study to examine whether mothers’ eating styles predicted their self-reported restrictive feeding practices indirectly through their perceptions of their children’s appetite and subsequently through their concern about their children’s weight. Methods: A total of 488 mothers (M_age = 33.87 years, SD = 4.81, range = 20–49) of children aged 2–7 years (M_age = 3.85 years, SD = 1.33) completed self-report measures, including the Dutch Eating Behavior Questionnaire (DEBQ) for maternal eating styles, the Child Feeding Questionnaire (CFQ) for parental concerns and restrictive practices, and the Children’s Eating Behavior Questionnaire (CEBQ) for perceptions of child eating attitudes. Structural equation modeling (SEM) was employed to test the hypothesized mediation model, with model fit evaluated using CFI, TLI, RMSEA, and SRMR indices. Results: Our proposed model demonstrated good fit (CFI = 0.94, RMSEA = 0.07) and showed that maternal eating styles were positively associated with perceived child appetite (β = 0.44, p < 0.001). Perceived appetite predicted both maternal concern about child weight (β = 0.39, p < 0.001) and restrictive feeding practices (β = 0.28, p < 0.001), while maternal concern strongly predicted restriction (β = 0.65, p < 0.001). The total indirect effect from maternal eating styles to restriction was significant (β = 0.23, p < 0.001), and the model explained 56% of the variance in restrictive feeding. Conclusions: Our findings suggest that maternal eating styles may bias mothers’ perceptions of their children’s appetite and indirectly influence restrictive feeding practices primarily through increased concern about child weight. Given the cross-sectional design, reliance on maternal self-report, and online convenience sampling, results should be interpreted cautiously. Nonetheless, the study provides the first evidence for a sequential pathway linking maternal eating styles, child appetite perceptions, and weight concern to restrictive feeding, highlighting cognitive and perceptual processes as intervention targets. Full article

Temporary agency work (TAW) has expanded globally as organizations seek flexibility amid skill shortages and demand volatility. In 2015 the United Nations recognized ‘decent work’ as Sustainable Development Goal (SDG 8), emphasizing sustainable economic growth, fair employment opportunities accessible to all without discrimination, environmental responsibility, and social inclusiveness. This study examines why user organizations (clients) adopt TAW and how these drivers materialize in stakeholder practices that align—or fail to align—with SDG-8 dimensions of decent work. Within a qualitative-dominant, explanatory sequential mixed-methods case study, documentary and statistical analyses were combined with 19 semi-structured interviews across agencies, clients, agency workers, trade unions, and relevant authorities. Inductive thematic analysis identified seven demand-side driver categories and assessed their effects using the SDG-8 pillars as an analytical lens (employment creation, rights at work, social protection, social dialogue). Findings indicate that TAW is primarily deployed to buffer volatility and labour shortages, accelerate hiring, and shift HR administration and parts of risk to agencies, with limited integration of SDG-8–consistent practices. Three cross-cutting gaps emerged: (i) social dialogue is narrow and compliance-oriented, with little strategic focus on decent-work outcomes; (ii) agency-worker voice and representation are weak, and agencies are not consistently recognised as social partners; and (iii) social-sustainability efforts are sparse and ad hoc, with few structured measures for skill development, equal treatment, or clear conversion pathways, while environmentally friendly initiatives are almost completely absent. In Slovenia, TAW fills systemic labour gaps but remains weakly integrated with SDG-8 practices. The study links demand-side drivers to specific decent-work shortfalls and proposes a multi-level policy roadmap—regulatory, industry, TAW agency, and social-dialogue platforms—to advance progress toward social sustainability and environmental responsibility. Full article

A flexible and packed-type air filter ball (AFB) system was developed for the efficient removal of particulate matter (PM) and formaldehyde (HCHO). The Mg/Si-embedded AFB (Mg/Si-AFB) was synthesized through sequential physical etching of a sponge, oxidation of glass fiber, and subsequent formation of Mg-Si components. The resulting Mg/Si-AFB exhibited a highly porous and roughened architecture with enhanced surface reactivity. A disk-type filtration device loaded with Mg/Si-AFBs demonstrated a PM_2.5 removal efficiency (RE) of 97.4% at a pressure drop of 57 Pa. The RE increased with packing density and PM concentration and notably remained constant even at high air velocities (7 m/s). In addition, the oxidized glass fiber (GF)-based AFB (O-GF-AFB) exhibited rapid HCHO adsorption capability, achieving 100% HCHO removal within 1 min. Hybrid air filters combining Mg/Si-AFBs and O-GF-AFBs in an equal ratio (8:8) exhibited synergistic performance, simultaneously achieving 97.1% PM_2.5 RE and complete HCHO removal within 1–6 min, while maintaining low pressure drops (55–57 Pa) over 50 reuse cycles. Full article

Today, reducing carbon footprints requires the development of technologies to utilize CO₂, particularly by converting it into valuable chemical products. One approach is plasma-catalytic CO₂ splitting into CO and O₂. The task of separating such a ternary mixture is nontrivial and requires the development of an efficient method. In this paper, we have developed a comprehensive scheme for the separation of a CO₂/CO/O₂ mixture using membrane technology. The novelty of this work lies in the development of a complete scheme for separating the products of plasma-chemical decomposition of CO₂ to produce a CO concentrate. The calculations utilized the principle of a reasonable balance between the recovery rate and the energy consumption of the separation process. This scheme allows production of a CO stream with a purity of 99%. To achieve this goal, we have proposed the sequential use of CO₂-selective membranes based on polysiloxane with oligoethyleneoxide side groups (M-PEG), followed by polysulfone (PSF) hollow-fiber membranes to separate CO and O₂. For these membranes, we measured the CO permeability for the first time and obtained the selectivity for CO₂/CO and O₂/CO. The potential of membrane separation was demonstrated through a three-stage process, which includes recycling of the CO removal stream and concentration after CO₂ plasmolysis. This process was calculated to yield a highly pure CO stream containing 99 mol% with a recovery rate of 47.9–69.4%. The specific energy consumption for the separation process was 30.31–0.83 kWh per 1 m³ of feed mixture, and the required membrane area was between 0.1 m² for M-PEG and 42.5–107 m² for PSF, respectively. Full article

Upstream processes strongly influence downstream analysis in sequential data-processing workflows, particularly in machine learning, where data quality directly affects model performance. Conventional statistical imputations often fail to capture nonlinear dependencies, while deep learning approaches typically lack uncertainty quantification. We introduce a hybrid imputation model that integrates a deep learning autoencoder with Convolutional Neural Network (CNN) layers and a Transformer-based contextual modeling architecture to address systematic variation across heterogeneous data sources. Performing multiple imputations in the autoencoder–transformer latent space and averaging representations provides implicit batch correction that suppresses context-specific remains without explicit batch identifiers. We performed experiments on datasets in which 10% of missing data was artificially introduced by completely random missing data (MCAR) and non-random missing data (MNAR) mechanisms. They demonstrated practical performance, jointly ranking first among the imputation methods evaluated. This imputation technique reduced the root mean square error (RMSE) by 50% compared to denoising autoencoders (DAE) and by 46% compared to iterative imputation (MICE). Performance was comparable for adversarial models (GAIN) and attention-based models (MIDA), and both provided interpretable uncertainty estimates (CV = 0.08–0.15). Validation on datasets from multiple sources confirmed the robustness of the technique: notably, on a forensic dataset from multiple laboratories, our imputation technique achieved a practical improvement over GAIN (0.146 vs. 0.189 RMSE), highlighting its effectiveness in mitigating batch effects. Full article

University teachers are key contributors to achieving the objectives of Education for Sustainable Development (ESD), and their work engagement directly influences teaching quality, research productivity, and student development. However, the role of teachers’ internal resources in promoting work engagement has received limited empirical attention, particularly in Eastern cultural contexts. Based on the Job Demands–Resources (JD-R) model, this study examines how the satisfaction of basic psychological needs affects university teachers’ work engagement, with organizational identification and job satisfaction serving as potential mediators. A total of 483 participants completed the survey, and data were analyzed using mediation analysis. Results indicated that basic psychological need satisfaction was positively associated with teachers’ work engagement. Furthermore, organizational identification and job satisfaction both mediated this relationship, individually and sequentially, thereby enhancing teachers’ engagement through a chain mediation mechanism. These findings shed light on the psychological processes underlying university teachers’ work engagement and provide theoretical and practical implications for fostering sustained motivation and proactive participation in ESD-related teaching and research. This study also contributes to extending the application of the JD-R model in higher education settings. Full article

Background/Objectives: Tinnitus affects approximately 15% of the population and lacks a universally effective treatment. Tinnitus Retraining Therapy (TRT) is widely used but requires 6–8 h of daily sound exposure for 1–2 years, limiting accessibility and adherence. This study evaluated the clinical feasibility and therapeutic effectiveness of Enriched Acoustic Environment therapy (EAE), a streamlined alternative using individualized sound stimulation with a markedly reduced treatment burden, and compared its time efficiency with published TRT outcomes. Methods: 82 adults with chronic tinnitus received standardized counseling and completed one of two EAE protocols (continuous or sequential). Participants listened to their personalized stimulus for 1 h/day over four months. Tinnitus severity (THI, TFI) and time-efficiency metrics (improvement per 10 listening hours) were assessed and compared with TRT studies reporting baseline and post-treatment THI. Results: EAE produced clinically relevant and statistically significant improvements, with 51.6% THI and 49.8% TFI reduction (p < 0.001). Both stimuli achieved similar outcomes with high responder rates. EAE yielded ~2.3 THI-point improvement per 10 h (~4.3% relative gain), demonstrating substantially greater time efficiency—approximately 20 times higher than values reported for standard TRT protocols. Conclusions: EAE achieved robust symptom reduction with dramatically lower treatment burden, high adherence, and strong clinical feasibility. These findings support EAE as an accessible, time-efficient alternative to TRT. Controlled long-term studies are warranted. Full article

Student dropout prediction remains critical in higher education, where timely identification enables effective interventions. Learning Management Systems (LMSs) capture rich temporal data reflecting student behavioral evolution, yet existing approaches underutilize this sequential information. Traditional machine learning methods aggregate behavioral data into static features, discarding dynamic patterns that distinguish successful from at-risk students. While Long Short-Term Memory (LSTM) networks model sequences, they assume discrete time steps and struggle with irregular LMS observation intervals. To address these limitations, we introduce Completion-aware Risk Neural Ordinary Differential Equations (CR-NODE), integrating continuous-time dynamics with completion-focused features for early dropout prediction. CR-NODE employs Neural ODEs to model student behavioral evolution through continuous differential equations, naturally accommodating irregular observation patterns. Additionally, we engineer three completion-focused features: completion rate, early warning score, and engagement variability, derived from root cause analysis. Evaluated on Canvas LMS data from 100,878 enrollments across 89,734 temporal sequences, CR-NODE achieves Macro F1 of 0.8747, significantly outperforming LSTM (0.8123), Extreme Gradient Boosting (XGBoost) (0.8300), and basic Neural ODE (0.8682). McNemar’s test confirms statistical significance ($p<0.0001$). Cross-dataset validation on the Open University Learning Analytics Dataset (OULAD) demonstrates generalizability, achieving 84.44% accuracy versus state-of-the-art LSTM (83.41%). To support transparent decision-making, SHapley Additive exPlanations (SHAP) analysis reveals completion patterns as the primary prediction drivers. Full article

Background/Objectives: Primary cardiac sarcomas are rare and aggressive tumors. Management is often guided by evidence from other sarcoma types due to limited disease-specific data. This study aimed to analyze the clinical characteristics, pathology, treatment, and outcomes of primary cardiac sarcomas at a national referral center in Spain. Methods: We conducted a retrospective, observational, single-center study from February 2017 to December 2024. Patient data were collected from medical records, and a descriptive analysis was performed. Results: Twelve patients were identified (58% female; median age 43 years, range 13–76). Dyspnea was the most common symptom (8/12, 67%), and the right atrium was the most frequent tumor site (6/12, 50%). Angiosarcoma was the predominant histologic subtype (6/12, 50%). Seven patients had localized disease at diagnosis. Surgery was performed in six patients, with complete (R0) resection in two. Two patients received adjuvant chemotherapy, one underwent cardiac transplantation, and one received sequential chemo- and radiotherapy. All patients experienced tumor recurrence, with a median recurrence-free survival of 5 months (95% CI, 1.5–8.6). Median overall survival for localized disease was 22 months (95% CI, 16–28). Five patients were metastatic at diagnosis, and 11 of 12 developed metastases. Median progression-free survival for first-line therapy was 5.9 months (95% CI, 1.8–9.9), and median overall survival for advanced disease was 12 months (95% CI, 10–13.6). Conclusions: Complete surgical resection was rarely achieved, and recurrence was universal. Outcomes remained poor even for localized disease, highlighting the limited efficacy of current therapies and the need for improved multimodal treatment strategies. Full article

Cordycepin (3′-deoxyadenosine, 3′-dA), the flagship nucleoside antibiotic from Cordyceps militaris, exerts potent anti-inflammatory, antimicrobial, and antitumor activity but is rapidly inactivated by human adenosine deaminase (ADA). While prodrugs, ADA inhibitors, and nanocarriers have been pursued to prolong its half-life, the influence of solid form on delivery performance remains unexplored. Here, three polymorphs—anhydrate-I (flake-like), anhydrate-II (rod-like), and a previously unreported monohydrate (fibrillar)—were prepared, characterized (PXRD, TG-DSC, FTIR), and subjected to equilibrium solubility, slurry-conversion, and humidity-sorption mapping. The monohydrate dehydrates at 144 °C and sequentially transforms to anhydrate-I → anhydrate-II (ΔH = −127.5 J g⁻¹), establishing a monotropic relationship between the two anhydrous forms. Solubility displays a bell-shaped profile versus water activity: the monohydrate is stable above aw 0.8, whereas anhydrate-II predominates below aw 0.2. In model immediate-release tablets, anhydrate-II achieves complete dissolution within 10 min, whereas the monohydrate sustains release for 30 min. Hygroscopicity tests show the monohydrate absorbs <6% water up to 75% RH without structural change, whereas anhydrate-I converts to the monohydrate above 63% RH. The quantitative humidity–crystal form–performance correlations provide a rational platform for crystal form selection and the design of stable, efficacious cordycepin solid dosage forms. Full article

Background/Objectives: The ascending pharyngeal artery (APA) exhibits considerable variability in origin. Understanding its anatomy is essential for head and neck surgery, endovascular procedures, and skull base approaches. This study aimed to (1) systematically characterize APA origin sites, (2) evaluate bilateral patterns, and (3) establish a comprehensive sequential classification system for external carotid artery (ECA) branching. Methods: Bilateral computed tomography angiography assessment was performed in 85 patients (170 carotid axes; 54 men, 31 women; mean age 69 ± 10 years). APA origins were classified into six types: Type 0 (absent), Type I (ECA medial wall), Type II (ECA posterior wall), Type III (occipitopharyngeal trunk), Type IV (internal carotid artery), and Type V (other origins). A novel sequential classification system (S-types) documented the complete ECA branching order. Results: APA was absent in 14.71% of cases; APA’s absence or internal carotid origin was noted in 19.41% of cases. Type I occurred in 26.47%, Type II in 35.88%, Type III in 17.06%, Type IV in 4.71%, and Type V in 1.18%. Forty distinct S-types were identified, representing the most comprehensive documentation of ECA branching diversity. No statistically significant side-related (χ² = 42.12, p = 0.379) or gender-related (χ² = 49.81, p = 0.138) differences were found. Twenty-three types occurred in fewer than five cases each. Conclusions: This first comprehensive sequential classification system reveals extraordinary anatomical diversity in ECA branching patterns. The absence of predictable side or gender patterns necessitates bilateral preoperative imaging for surgical planning. Full article

Purpose: This study aimed to compare QoL outcomes among patients undergoing active breathing control (ABC), voluntary deep inspiration breath hold (vDIBH), and surface-guided radiation therapy (SGRT). Methods: This was a non-randomized, three-arm clinical trial in which 55 patients were sequentially allocated to ABC (n = 19), SGRT (n = 20), or vDIBH (n = 16). QoL was assessed using the European Organization for Research and Treatment of Cancer QoL questionnaire (EORTC QLQ-C30) at baseline, treatment completion, and 6–8 weeks post-treatment. Linear regression was used to compare changed scales in QoL domains across groups. A p-value of <0.05 was considered statistically significant. Results: Baseline QoL scores were high across all groups, with physical functioning being the highest-rated domain and global health status the lowest. Fatigue, pain, and insomnia were the most highly reported symptoms at all time points. At 6–8 weeks, social functioning improved significantly in SGRT compared to vDIBH (16.67 vs. −12.50, p = 0.0053). Patients in the vDIBH group reported significantly increased pain compared to ABC at 6–8 weeks (p = 0.0240). No other significant differences were observed in QoL changes between the groups. Conclusions: The three breath-hold techniques maintained overall QoL with no differences between the groups, except for pain between vDIBH and ABC and social functioning for vDIBH and SGRT both at 6–8 weeks of follow-up. Despite the limitations of this study, each breath-hold technique has demonstrated comparable impact on QoL in patients with left-sided breast cancer and each could be used as a viable option with respect to QoL. Full article

Positive psychological capital (PsyCap) is closely linked to well-being. This study examined the role of serious leisure in fostering PsyCap among Korean university students, drawing on Fredrickson’s broaden-and-build theory of positive emotion. Using structural equation modeling, we investigated whether serious leisure participation predicts life satisfaction through the sequential mediating effects of positive emotion, positive thought, and PsyCap. A stratified sample of 480 Korean college students completed measures of serious leisure, positive emotion, positive thought, PsyCap, and life satisfaction. The findings revealed significant indirect associations, supporting the applicability of Fredrickson’s broaden-and-build theory in explaining how serious leisure enhances life satisfaction via positive psychological resources. These findings highlight serious leisure as a meaningful pathway to psychological well-being and suggest the value of university-based programs that promote constructive leisure engagement. The key contribution of this study lies in extending the understanding of serious leisure by empirically linking it to PsyCap and life satisfaction in a non-Western context, identifying it as a developmental resource that fosters long-term well-being. Full article

A variety of aerospace trajectory optimization problems are subject to either discontinuities or constraints at intermediate times, which define multiple arcs with distinctive governing equations. This work addresses multi-arc optimal control problems, with special interest regarding aerospace trajectories, and specifically focuses on the multipoint corner conditions that belong to the complete set of necessary conditions for an extremal, in the context of a general formulation. This includes intermediate times and states in the objective functional, together with unknown time-independent parameters. This study shows that 16 cases can occur for the multipoint corner conditions and groups them into three classes. Explicit, closed-form solutions of the multipoint corner relations are identified in each class, if certain conditions are met. In an indirect solution approach, these explicit expressions can be employed sequentially, thus reducing the number of unknowns of multi-arc problems to the same number of single-arc optimal control problems. This is extremely useful in the presence of a large number of arcs. Two challenging aerospace trajectory optimization problems are analyzed as illustrative examples, i.e., (i) the minimum-fuel ascent path of a multistage launch vehicle and (ii) minimum-time low-thrust orbit transfers with eclipse constraints on the available thrust. Full article

Background/Objectives: Breakthrough pain (BTP) is commonly experienced by children and young people with life-limiting and life-threatening conditions. While over 50 tools exist for the assessment of breakthrough pain in adults, there is currently no standardised measure designed for use in paediatrics. To address this gap, the multi-phase BEACON clinical trial aims to develop the Breakthrough Pain Assessment Questionnaire (BTPAQ) for use with children and young people with life-limiting and life-threatening conditions aged 3 months to 25 years. The goal of the current study was to refine the self-report version (BTPAQ-SR) of the questionnaire through an international, sequential, electronic-Delphi process. Methods: Healthcare professionals with at least three years of clinical experience working with children and young people with life-limiting and life-threatening conditions were invited to complete an anonymous online survey. The alpha version of the BTPAQ-SR was developed from systematic reviews, qualitative interviews, and the BEACON Steering Group. It had a diagnostic algorithm (Part A) and 18 items (Part B); however, items that included multiple descriptors or options were separated and presented individually, resulting in 49 survey items being presented to participants. Participants rated the importance of all survey items to assess breakthrough pain and the frequency of presentation for a subset of 37 items. Results: Fifty-three healthcare professionals from nine different countries were recruited, the majority of whom were physicians or nurses. Of the 49 survey items, 46 (93.8%) reached the ≥70% consensus threshold for importance, and 31 (83.8%) of 37 reached consensus for frequency. In total, 42 survey items reached consensus for both importance and frequency. Conclusions: The findings from this study support the clinical need for the BTPAQ-SR, confirm its conceptual foundation, and justify its continued development. Next steps include cognitive interviews with children and young people and introduction to clinical care to assess the psychometric properties of the BTPAQ-SR, including its clinical utility, reliability, and validity. Full article