Search Results (2,967)

Artifact style is still assessed primarily visually/descriptively, and much less morphologically/parametrically—by processing latent geometric peculiarities. This research aims to explore how the morphology of artifacts can be represented and quantitatively compared in order to validate their stylistic affiliation cost-efficiently. Since the term “style” herein refers to orders of classical architecture, (Roman) capitals of the oldest, Doric order, were chosen for such a validation-oriented assessment. The methodology included the following: (1) scaling capital 3D models to a uniform height to make the number of equidistant crosscuts invariant, (2) substituting contours thereof with circles (by retaining area values) to marginalize ornamentation factors, (3) determining stepwise dynamics of perimeter change across circles to ensure relative comparisons, (4) generating diagrammatic representatives by revolving dynamics-wise trendlines, and (5) comparing them quantitatively. To make the latter valid in a statistical sense, three groups of capitals were foreseen: Control (of indisputable Doric), 1st Experimental (of assumed Doric), and 2nd Experimental (of non-Doric, i.e., Ionic). Distances between the vertices of every compared representative (from defined groups) and their nearest neighbors on the reference (a representative obtained by “averaging” control ones) were computed. Distributions of such distances induced normal probabilities capable of “inferring” whether the analyzed capital could likely be a member of the assumed order. Full article

In off-road scenes, segmentation targets exhibit significant scale progression due to perspective depth effects from oblique viewing angles, meaning that the size of the same target undergoes continuous, boundary-less progressive changes along a specific direction. This asymmetric variation disrupts the geometric symmetry of targets, causing traditional segmentation networks to face three key challenges: (1) inefficientcapture of continuous-scale features, where pyramid structures and multi-scale kernels struggle to balance computational efficiency with sufficient coverage of progressive scales; (2) degraded intra-class feature consistency, where local scale differences within targets induce semantic ambiguity; and (3) loss of high-frequency boundary information, where feature sampling operations exacerbate the blurring of progressive boundaries. To address these issues, this paper proposes the ProCo-NET framework for systematic optimization. Firstly, a Progressive Strip Convolution Group (PSCG) is designed to construct multi-level receptive field expansion through orthogonally oriented strip convolution cascading (employing symmetric processing in horizontal/vertical directions) integrated with self-attention mechanisms, enhancing perception capability for asymmetric continuous-scale variations. Secondly, an Offset-Frequency Cooperative Module (OFCM) is developed wherein a learnable offset generator dynamically adjusts sampling point distributions to enhance intra-class consistency, while a dual-channel frequency domain filter performs adaptive high-pass filtering to sharpen target boundaries. These components synergistically solve feature consistency degradation and boundary ambiguity under asymmetric changes. Experiments show that this framework significantly improves the segmentation accuracy and boundary clarity of multi-scale targets in off-road scene segmentation tasks: it achieves 71.22% MIoU on the standard RUGD dataset (0.84% higher than the existing optimal method) and 83.05% MIoU on the Freiburg_Forest dataset. Among them, the segmentation accuracy of key obstacle categories is significantly improved to 52.04% (2.7% higher than the sub-optimal model). This framework effectively compensates for the impact of asymmetric deformation through a symmetric computing mechanism. Full article

We report here an in-depth study concerning the synthesis, NMR, and X-ray structure determination of two new polymorphs of 2-chloro-3′,4′-diacetoxy-acetophenone. A new, ecologically friendly method of synthesis in the solid phase, as well as a suitable method for protecting hydroxyl functionality, is presented. The ¹H- and ¹³C-NMR spectra as well as the single crystal X-ray diffraction studies proved unambiguously the structure of the compounds: the two polymorphs of 2-chloro-3′,4′-diacetoxy-acetophenone and 2-chloro-3′-hydroxy-4′-acetoxy-acetophenone. The polymorph I crystalizes in the monoclinic P21/c space group, while polymorph II crystalizes in the Sohnke P212121 space group of the orthorhombic system, with no interstitial solvate molecules. Significant differences were observed in the supramolecular interactions in the crystal structure of the two polymorphs. Polymorph I is characterized as a parallel packing of weakly interacting supramolecular layers oriented in the 1 1 0 plane. The crystal structure of polymorph II is much more complex: each molecule is interconnected through 12 (twelve) hydrogen bonds with 9 (nine) adjacent symmetry-related molecules. The monoacetoxy derivative 2-chloro-3′-hydroxy-4′-acetoxy-acetophenone 3 crystallizes in the monoclinic P2₁/c space group, with one molecule in the asymmetric unit. Full article

Ready-to-eat cereals are a popular breakfast choice for children and adults, offering convenience and affordability. This study aimed to evaluate the nutritional content of ready-to-eat cereals available in the Greek market and compare data for the following categories: products targeted at adults (n = 208) vs. children (n = 74) and their subgroups: all bran vs. refined and gluten containing vs. gluten free. Protein, fat, saturated fat and fiber were all present in significantly greater quantities in the adult group when compared with the child group. The median content of sugar contained in children’s products (25.0/100 g) was significantly higher than the one present in adults’ ready-to-eat cereals (15.2/100 g). Sugar content of children and adult’s RTECs was assessed against the criteria set by the United States Department of Agriculture (USDA) and the Regional Office for Europe of the World Health Organization (WHO). Sugar in children’s products (7.5 g per serving) did not comply with the criterion of <6 g per 30 g of serving. On the other hand, the sugar content in adult-oriented cereals (6.0 g per serving) was below the criterion of <10 g per 45 g of serving. All bran products demonstrated a better nutritional profile overall compared with the refined ones, but children’s options in the market are very limited, with only two products identified. Sugar reduction, particularly for children’s ready-to-eat cereals, should be a priority for policymakers and the food industry. Full article

Background: Collabieae is a medium-sized group within the orchid subfamily Epidendroideae that is distributed primarily across tropical Asia. Most Collabieae species are known for their considerable ornamental and medicinal merits. However, habitat destruction and overharvesting have led to severe decline in their wild populations. Chloroplast (cp) genomes are highly valued in evolutionary studies, due to comparative conservation and accumulation of genomic variations. Elucidating the structure of chloroplast genome is instrumental in conserving genetic diversity within the Collabieae. Methods: we explored the chloroplast genome characteristics of Collabieae. We incorporated three newly sequenced genomes from species (Acanthophippium sylhetense, Eriodes barbata, and Spathoglottis plicata), along with seven related species. Results: all analyzed cp genomes displayed a typical quadripartite circular structure. The total lengths ranged from 157,036 bp to 158,321 bp. Each genome contained 136 genes: 88 protein-coding genes, 38 tRNA genes, eight rRNA genes, and two pseudogenes. Across the ten Collabieae species, gene number, order, orientation, GC content, and codon usage bias were highly consistent, indicative of strong sequence conservation. However, notable structural divergence was observed at the plastome junctions, alongside variations in SSR and repetitive element frequencies. Moreover, six hypervariable regions were identified. Noncoding regions exhibited higher variability compared to protein-coding regions. Phylogenetic analysis indicated that E. barbata forms a distinct, small branch sister to the rest of the Collabieae members. Genera Acanthophippium and Spathoglottis were sister to the remaining groups within the tribe. Conclusions: this overall phylogenetic framework aligns well with previous findings. Our study provides valuable cp genomic resources and advances evolutionary research in Collabieae. Full article

Background/Objectives: Balance, postural control, and functional independence are essential components for the autonomy of people with neurological conditions. Robotic technologies such as the Lokomat^® have emerged as promising tools in rehabilitation, but their effectiveness when integrated into functional programs requires further evidence. The objective of this study was to evaluate the impact of an intensive robotic intervention on these three functional variables. Methods: A single-group, quasi-experimental pretest–posttest study was conducted with 136 participants who received a robotic rehabilitation intervention using the Lokomat^® device, and focused on functional tasks over several weeks. Balance (using the Berg scale), postural control (using the PASS), and functional independence (using the Barthel index) were assessed, comparing pre- and post-intervention results using parametric and non-parametric tests. Results: The results showed statistically significant improvements in all three variables after the intervention. The mean Berg score increased from 11.76 to 21.91 points (p < 0.001), postural control increased from 15.53 to 21.90 points (p < 0.001), and the Barthel index increased from 24.71 to 41.76 points (p < 0.001). In all cases, the effect sizes were large (d > 0.90). Conclusions: A rehabilitation program including intensive, task-oriented Lokomat^® training was associated with improvements in balance, postural control, and functional independence. Given the single-group design without a control arm, these findings reflect associations and do not establish causality. Full article

(1) Background: Most studies including health data have relied on reducing all variables to manifest scores, ignoring the latent nature of variables. Moreover, relying only on manifest variables is a limitation of longitudinal studies where identical measures cannot be collected at each time point. (2) Objective: This scoping review aims to identify latent variable statistical methods for longitudinal studies of multi-dimensional health and educational data investigating early health predictors of long-term educational outcomes and developmental trajectories that lead to better or worse than expected outcomes. (3) Eligibility criteria: We included peer-reviewed health and education journal articles, doctoral theses, and book chapters of longitudinal studies of children under 12 years of age that adopted latent variable, multivariate analysis of three or more waves of data. We only included full-text-available, English-written articles, without restriction on date of publication. (4) Sources of evidence: We searched five databases, Scopus, MEDLINE, PsycINFO, ERIC, and Web of Science, and identified 4836 publications for screening. (5) Results: After title, abstract, and full-text screening, nine studies were included in the review, reporting seven statistical methods. These methods were categorised into two groups—variable-oriented modelling and person-oriented modelling. (6) Conclusions: Variable-oriented modelling methods are useful for determining predictors of long-term educational outcomes. Person-oriented modelling methods are effective in detecting trajectories to better or worse than expected outcomes. (7) Registration: Open Science Framework. Full article

This study explores opportunities for improving the learning process of design students using multimedia and microlearning, with a focus on architectural visualization. It analyzes the learning habits of students and faculty in higher education, reflects on the need for digitalization and adaptation to the cognitive characteristics of Generations Z and Alpha, and emphasizes the importance of visual perception in design thinking. The research includes a survey of 130 respondents from eight Bulgarian universities and an experiment with three groups of students using different learning methods—live demonstration, video demonstration, and a combined approach. The results indicate that the combined method leads to the highest levels of understanding, confidence, and task performance. The research is grounded in pedagogical theories related to visual learning and cognitive engagement, particularly relevant for Generations Z and Alpha. Students expressed a preference for short, practice-oriented formats, such as project-based learning and video tutorials, aligning with their digital fluency and attention patterns. The results underline the importance of incorporating multimedia elements and flexible instructional strategies to support motivation, engagement, and effective skill development in design education. Full article

Background: Exercise has been widely recognized as an effective non-pharmacological intervention method for maintaining the mental health and sleep quality of the elderly. However, existing studies rarely distinguish the types of exercise based on cultural attributes, and this is even more so for the situation of elderly women. This oversight limits the accuracy of exercise recommendations for this population. Hence, this study aimed to compare the differential effects of three types of exercise—Oriental exercise, general exercise, and sedentary leisure exercise (SLE)—on physiological indicators and mental health in elderly women and to examine the associations between physiological indicators, sleep quality, and mental health. Methods: A total of 386 participants were included in the study, comprising 252 individuals in the Oriental exercise group (mean ± SD: 67.83 ± 5.36), 110 individuals in the general exercise group (mean ± SD: 67.19 ± 4.47), and 24 individuals in the SLE group (mean ± SD: 67.38 ± 4.75). Psychological tests (Pittsburgh Sleep Quality Index (PSQI), the Satisfaction with Life Scale (SWLS), the Subjective Well-being Scale (SWB), the Geriatric Depression Scale (GDS), the Geriatric Anxiety Scale-20 (GAI-20), and the Exercise Motivation Scale (SMS)) and physiological measurements (such as body weight and pulmonary capacity) were conducted. ANOVA was performed to compare the effects of the three types of exercise on physiological and psychological outcomes, and correlation analyses were conducted to evaluate the associations between different types of exercise and mental health indicators, physiological indicators, and sleep quality. Results: Primary Objective: One-way ANOVA showed significant group differences in key outcomes. Bonferroni post hoc tests confirmed the following: Oriental exercise > general exercise in SWB (p = 0.032); general exercise > SLE in sleep quality (PSQI, p = 0.028) and lower body weight (p = 0.019); Oriental exercise > general exercise in vital capacity (p < 0.001). Secondary Objective: Pearson correlations revealed the following: PSQI negatively correlated with life satisfaction (SWLS: p = 0.035) and positively with GDS (p = 0.021); SWB positively correlated with SWLS (p < 0.001) and negatively with GDS (p = 0.002). Conclusions: Different exercise modalities have distinct benefits for elderly women. Oriental exercise improved vital capacity and well-being, while general exercise reduced body weight and enhanced sleep quality compared with sedentary leisure activity. Tailored exercise programs may effectively promote both physical and mental health in this population. Full article

Locus of control refers to the way in which people perceive whether they have control over situations in their lives or whether these situations are the result of external circumstances. Locus of control subsequently influences individuals’ motivation, decision-making, and ability to accept responsibility. How locus of control manifests itself in the behavior of a particular individual can be influenced by several factors. In this article, we focused on how elements of different dimensions of human resource diversity can influence locus of control. For the research, we chose a quantitative approach using a questionnaire measuring the locus of control, along with additional questions. The main aim of the presented research was to identify the relationship between sociodemographic variables and the locus of control orientation of individual groups of respondents. The research sample consisted of N = 384 participants who completed the reduced standardized Rotter locus of control scale. The results focused on differences in individuals’ locus of control in terms of age, gender, type of work experience, and marital status and to what extent these sociodemographic variables can be a predictor of individuals’ locus of control. Hypotheses testing was performed using IBM SPSS 23 software. Th theoretical application of the research findings lies in the discovery that the locus of control (LoC) is not influenced by simple characteristics but must be understood in a more complex way. The practical application lies in the fact that professional experience can influence how employees perceive their level of control over their ability to affect their work and outcomes. Full article

(1) Background: Data literacy is becoming increasingly important for healthcare professionals in both outpatient care and research. Since healthcare data and the possibilities for its use and misuse are increasing in these areas, healthcare professionals need diverse knowledge regarding the collection, use and evaluation of data. A core component of this is an understanding of the ethical, legal, and social implications (ELSI) of working with health data. (2) Methods: Within the DIM.RUHR project (Data Competence Center for Interprofessional use of Health Data in the Ruhr Metropolis), the challenge of training in data literacy for different healthcare professionals is addressed. Based on a learning objectives matrix for interprofessional data literacy education, an ELSI concept was developed through collaboration with interprofessional project partners. The study was conducted between December 2024 and April 2025. (3) Results: The foundational structure of the ELSI concept was based on the learning objectives matrix and an unstructured literacy search for ELSI concepts in similar contexts. Using an iterative design-based research approach, a group of experts from different fields (didactics, applied ethics, health sciences, law, sociology, informatics, and psychology) developed an ELSI concept for healthcare professionals. The following categories were identified as crucial: 1. philosophy of science: a basic understanding of science and the hurdles and opportunities; 2. ethics: an overview of the biomedical principles and a technological assessment; 3. law: an overview of the reservation of permission and self-determination; 4. social aspects: an overview of health inequalities and different forms of power relations and imbalances. (4) Conclusions: The ELSI concept can be used in the orientation of healthcare professionals in outpatient care and research—regardless of their profession—to develop data competencies, with the aim of providing a holistic view of the challenges and potential in the collection, use, and evaluation of healthcare data. The DIM.RUHR project’s approach is to develop open educational resources that build on the ELSI concept to teach specific skills at different competence levels. Full article

This article focuses on participation in youth-led climate-oriented groups and the role of this form of civic engagement for young people. Thirty interviews were conducted with 13- to 18-year-olds belonging to four groups: Extinction Rebellion Youth, Sustainabiliteens, Sunrise Movement, or school-affiliated clubs. The participants had been part of their group for an average of 1.5 years, coming from either the United States (n = 26) or Canada (n = 4). They were predominantly female (n = 22), with a few male (n = 5) and a small number identifying as non-binary (n = 3). Significant in the thematic analysis was the critical role of increased meaning-making, which involved relationship-building, processing emotions, and taking action. The peer-led group settings served to create community, work through the range of emotions the climate crisis evoked, and generate actions that felt purposeful at both the individual and collective levels. In these spaces, young people seek meaning together, and they propose and demand action from governmental bodies and corporations on climate change. Through everyday activism, young people express an ecocitizenship that is constructive, hopeful, and generative. In a world characterized by the climate crisis, joining and contributing to youth-led climate groups is becoming part of young people’s identity development, a way of enacting citizenship and expressing political agency. Full article

1,4-Thiazine S,S-dioxide 1, the cis- and trans-isomers 2 and 3 of its precursor 2,6-diethoxy-1,4-oxathiane S,S-dioxide, and diethyl 2,3-dihydro-1,4-thiazine-3,5-dicarboxylate S,S-dioxide 4 have been fully characterised, both in solution by ¹H and ¹³C NMR and in the solid state by X-ray diffraction. Simulation has been used to model the unexpectedly complex ¹H NMR spectra and arrive at a full assignment of all chemical shifts and coupling constants. The crystal structures of both 1 and 4, which adopt, respectively, boat and half-chair conformations, are dominated by strong NH to O=S hydrogen bonding leading to chains of molecules. In the case of 4, the NMR data point to an equatorial position of the C(2)-ester group in solution, while in the crystal, this adopts an axial orientation. Compounds 2 and 3 adopt chair conformations both in solution and in the solid state with ring inversion on the NMR timescale leading to unexpected simplification of the spectra in the case of 3. Full article

The Special Issue on Health, Well-Being and Sustainability invites research that integrates behavioral, cultural, and systemic approaches to fostering sustainable lifestyles within work environments. This study focuses on the role of leadership in promoting employee health and healthy lifestyles, which are central dimensions of the validated Health-oriented Leadership framework. Although previous research has assumed that high levels of leader StaffCare lead to high levels of employee SelfCare and consequently to better health outcomes, inconsistent dyadic patterns have rarely been examined. In this study, we investigate dyadic relationship patterns between leaders’ StaffCare and employees’ SelfCare jointly creating a sustainable workplace health system in hybrid contexts. Using Latent Profile Analysis on a sample of N = 1104, we identify consistent and inconsistent patterns, their health and motivational outcomes after three months, as well as potential antecedents in terms of working conditions for profile membership. The consistent dyads showed expected results: high StaffCare and high SelfCare led to high health and motivation outcomes, while low StaffCare and low SelfCare resulted in the lowest outcomes. New findings emerged in inconsistent dyads. In the low leaders’ StaffCare and high employees’ SelfCare dyad (Bystanders & Health Proactives), leaders recognized risks but did not actively promote health measures. However, proactive employees who engage in SelfCare behaviorally compensate for insufficient leader support but at a motivational cost. In contrast, the high leaders’ StaffCare and low employees’ SelfCare dyad (Health Sacrificers) included leaders who supported employees’ health but neglected their own, resulting in lower health but higher motivation among employees. Job demands and resources partly predicted group membership and can offer practical implications for building work environments that foster employees’ well-being and health. The findings offer insights into inconsistent leadership behaviors and provide guidance for enhancing employee well-being, particularly in hybrid work environments. Full article

The photochemistry of 1,3,4-oxadiazoles remains poorly understood, despite their recognized importance in medicinal chemistry and materials science. In this work, we report a detailed matrix-isolation study of 2-amino-5-(4-methoxyphenyl)-1,3,4-oxadiazole, combining low-temperature infrared spectroscopy with broadband UV photolysis and quantum chemical calculations. Theoretical analysis predicts the gas-phase molecule to exist exclusively as the amino tautomer, populating two nearly isoenergetic conformers (anti and syn) defined by the relative orientation of the amino and methoxy groups. Experimental IR spectra of the compound isolated in Ar and Xe matrices at 15 K confirm sole trapping of the amino tautomer. Annealing of the Xe matrix to the highest achievable temperature induced no detectable spectral changes, consistent with the predicted isoenergetic character of the conformers. Upon broadband UV irradiation (λ > 200 nm), the compound undergoes ring opening through N−N and C−O bond cleavages, paralleling the behavior of unsubstituted 1,3,4-oxadiazole system. Isocyanates emerge as the predominant photoproducts from these photochemical pathways. Additionally, spectroscopic evidence supports an alternative reaction pathway involving early-stage amino−imino tautomerization, followed by ring-opening of the imino tautomer through isocyanic acid extrusion, leading to the formation of a nitrilimine intermediate. This reactive species subsequently photorearranges into a carbodiimide via a diazirine-mediated pathway. All photoproducts were unambiguously identified through their distinct IR signatures, supported by quantum chemical calculations and reference data from structurally related systems. These findings provide unprecedented insight into the photochemical behavior of substituted 1,3,4-oxadiazoles and unveil new reaction pathways modulated by substituent effects, expanding the understanding of their photoreactivity. Full article