松本大学

BackgroundIn the evolving modern workplaces, the psychological well-being of employees has become a focal point of organizational research. Organizational justice has emerged as a key determinant among the factors influencing their well-being.ObjectiveThis study examined associations between organizational justice and loneliness in the workplace.MethodsA web-based panel survey was conducted among 2,074 full-time employees to measure isolation and loneliness in the workplace ("sense of loneliness in the workplace", "emotional connections in the workplace", "sense of assistance in the workplace", and "sense of usefulness in the workplace") and organizational justice ("procedural justice", "distributive justice", "interpersonal justice", and "information justice").ResultsThe hierarchical multiple regression analyses indicated that procedural justice and interpersonal justice were associated negatively with "sense of loneliness in the workplace" and positively with "sense of assistance in the workplace." All dimensions of organizational justice were positively associated with "emotional connections in the workplace" and "sense of usefulness in the workplace." This study shows that organizational justice is associated negatively with workplace loneliness and positively with emotional connections, the existence of job supporters, and a sense of usefulness.ConclusionThese findings can inform measures for preventing employees from feeling isolated or lonely and may contribute to the development of research on employee well-being.

Background Exercise attenuates stress-induced depression-like behavior in rodent models, but stress susceptibility and exercise responsiveness differ widely among individuals. This study aimed to identify individual-specific molecular and physiological network features associated with stress susceptibility, resilience, and heterogeneous responses to voluntary exercise. We applied a machine learning-based Bioreaction-Variation Network (BVN) model to individual-level data from mice exposed to chronic restraint stress with or without voluntary exercise. Results Acute forced exercise before chronic restraint stress revealed marked inter-individual variability in plasma corticosterone responses in both male and female mice. In restraint stress-only mice, higher post-exercise corticosterone responses were associated with greater subsequent increases in immobility time, whereas this association was not observed when restraint stress was combined with voluntary exercise. Direct correlation analysis of hippocampal gene expression, corticosterone responses, running activity, and immobility did not identify a single factor explaining this exercise-associated modification. BVN inference was therefore applied using experimental conditions, immobility time, and hippocampal gene expression profiles as inputs. BVN-inferred networks revealed that susceptible individuals had more complex input-connected sub-networks, whereas resilient individuals showed simpler and more restricted network structures. Community analysis further showed that susceptible mice exposed to restraint stress plus voluntary exercise used a broader set of input-connected sub-networks than resilient mice. Conclusions These findings indicate that BVN inference can extract individual-specific network features from complex stress–exercise datasets. This study further provides a new concept that stress susceptibility, resilience, and exercise responsiveness can be interpreted as inter-individual variability in the breadth and organization of inferred molecular and physiological pathways.

Introduction: Frontal plane pelvic control during single-leg standing is vital, as inadequate control may result in contralateral pelvic drop, indicating insufficient hip abductor function. Deep hip muscle activity, particularly the gluteus minimus (GMin) and piriformis (PIRI), may contribute to frontal plane pelvic control. However, the activation patterns and onset times of the GMin, PIRI, and trunk muscles during controlled frontal plane pelvic movements in single-leg standing remain unclear. Clarifying these patterns may help define the clinical significance of pelvic drop, including the Trendelenburg sign. We aimed to examine trunk and lower limb muscle activity, including the anterior and posterior segments of the GMin (GMin-a and GMin-p) and the PIRI, during single-leg standing across varying frontal plane pelvic movement conditions. Materials and Methods Eleven healthy men conducted single-leg standing on their dominant leg and maintaining contralateral or ipsilateral pelvic elevation and depression. Trunk and lower limb muscle activity was recorded on the dominant side using surface electromyography (EMG) and fine-wire EMG. Results GMin-a and PIRI activity were considerably higher during contralateral pelvic elevation. PIRI activity was also significantly higher during contralateral pelvic depression. Conversely, GMin-a activity was significantly higher during single-leg standing and ipsilateral pelvic depression. Conclusions GMin-a and PIRI on the weight-bearing side may contribute to maintaining frontal plane pelvic control during single-leg standing with frontal plane pelvic movements, whereas GMin-a on the non-weight-bearing side may contribute to ipsilateral pelvic depression. Thus, this study provides direct implications for the assessment and management of conditions related to impaired pelvic stability, providing a more precise basis for targeted rehabilitation strategies.

PurposeThis study addresses the disconnect between how authorities present heritage and how people experience it by testing sensory mapping as a method to bridge theoretical considerations of the ecosystem approach with on-ground heritage practices. Focusing on Yanaka, Tokyo's historic district facing urban change, this research explores how sensory ethnography can reveal everyday heritage values that differ from authorized heritage discourse.Design/methodology/approachFourteen participants conducted a 2.5-h sensory mapping workshop on July 7th 2024. Each participant received an empty paper map and was randomly assigned a specific sensory category (sight, hearing, smell, touch, taste) and urban morphological element (following Lynch's framework). Participants walked freely through and Yanaka, marking their sensory experiences and documenting them through photographs and recordings. Routes were compared with official heritage tour paths to identify convergences and divergences.FindingsWhile participant routes showed some overlap with official tours, significant divergences emerged, particularly in residential areas. Hebi-michi (snake alley) and the Kayaba Coffee area emerged as unexpected sensory hotspots. Remarkably, sensory experiences triggered personal memories, with one participant recalling nostalgic moments from their hometown, suggesting heritage experiences transcend physical boundaries.Originality/valueThis represents the first sensory heritage mapping study in Yanesen, contributing a replicable methodology that connects ecosystem approaches with everyday heritage theory. The method offers heritage managers practical tools for understanding how people actually experience urban heritage, potentially informing more inclusive and accessible preservation strategies that acknowledge heritage as a living, sensory ecosystem.