Facile Preparation and Study of Self-healing Water-absorbing Expanding Elastomers.

The absorbent expansion elastomer plays a crucial role in engineering sealing and holds a promising future in this field as infrastructure continues to develop. Traditional materials have their limitations, especially when used in large construction projects where the integrity and reliability of the material are of utmost importance. In this work, a self-healing water-absorbing expansion elastomer was developed for continuous production at a large scale to monitor the sealing conditions of massive infrastructure projects. At room temperature, the material exhibited a repairing efficiency of 57.77% within 2 h, which increased to 84.02% after 12 h. This extended reaction time allowed for effective repairs when defects were detected. The material's strength reached approximately 3 MPa, making it suitable for a wide range of applications. The volume expansion rate of the material reached 200-400% for effective sealing, and the fictionalization of the packing made it have a good external force sensing effect and prevent heat build-up effect. The conductive detection performance of the absorbent expansion elastomer was improved by utilizing triple self-healing strategies, including dipole-dipole interaction, ion cross-linked network, and externally-aided restoration materials.

Exploring influencing factors to clinical leadership development: a qualitative study with healthcare professionals in Flemish nursing homes.

BACKGROUND: Nursing homes face a critical need for competent healthcare professionals to deliver high-quality care. Focusing on clinical leadership is crucial for equipping healthcare professionals with the skills necessary to manage complex care needs, collaborate effectively within multidisciplinary teams, and improve care quality in nursing homes. Developing clinical leadership fosters professional growth and enhances healthcare professionals' ability to tackle the challenges unique to the nursing home environment. However, the concept of clinical leadership in nursing homes remains poorly defined and investigated. This study aimed to explore and define influencing factors for the development of clinical leadership within healthcare professionals in nursing homes. METHODS: A qualitative study was conducted in Flanders, Belgium, using semi-structured focus group interviews (n = 5) with healthcare professionals (n = 41), including nurse assistants, licensed practical nurses, registered nurses, occupational therapists, recreational therapists, psychologists, and gerontologists. Interviews were audio-taped, transcribed, analysed and interpretated by using a thematic analysis based on descriptive phenomenology. RESULTS: Clinical leadership development within healthcare professionals' hinges on four pivotal themes: (1) Cultivating an empowering working environment that fosters open feedback, encourages peer learning, and champions a stimulating learning climate. (2) Nurturing a supportive leadership style in formal leaders that exemplifies role modeling, accessibility, and a coaching approach. (3) Elevating well-developed professional identity through targeted training, experience, and a talent-oriented work approach. (4) Fostering team dynamics marked by commitment, collaboration, support, and trust. CONCLUSIONS: The study's findings on the influencing factors for clinical leadership development should be actively applied in nursing homes and guide the creation of targeted training programs and leadership development initiatives. Awareness of these factors are crucial to optimise and to support the development and implementation of clinical leadership in nursing homes in an attempt to reduce the workforce shortages.

Antecedents and outcomes of work engagement among nursing staff in long-term care facilities-A systematic review.

AIM: To determine antecedents and outcomes of work engagement (WE) among nursing staff in long-term care (LTC) using the Job Demand-Resources model. DESIGN: A systematic review following the Preferred Reporting Items for Systematic Review and Meta-Analysis statement and Synthesis Without Meta-analysis in systematic reviews guideline. A study protocol was registered in PROSPERO (registration number CRD42022336736). DATA SOURCES: The initial searches were performed in PsycInfo, Medline, Academic Search Premier, CINAHL and Scopus and yielded 3050 unique publications. Updated searches identified another 335 publications. Sixteen studies published from 2010 to 2022 were included. REVIEW METHODS: The screening of titles and abstracts, and subsequently full-text publications, was performed blinded by two author teams using the inclusion/exclusion criteria. When needed, a mutual consensus was obtained through discussion within and across the teams. A descriptive and narrative synthesis without a meta-analysis of the included studies was performed. RESULTS: The extent of research on WE in LTC facilities is limited and the factors examined are heterogeneous. Of forty-two unique antecedents and outcomes, only three factors were assessed in three or more studies. Antecedents-in particular job resources-are more commonly examined than outcomes. CONCLUSION: Existing literature offers scant evidence on antecedents and outcomes of WE among nursing staff in LTC facilities. Social support, learning and development opportunities and person-centred processes are the most examined factors, yet with ambiguous results. IMPACT: Antecedents and outcomes of engagement among nursing staff in LTC facilities have not previously been reviewed systematically. Engagement has been correlated with both more efficient and higher-quality service delivery. Our findings suggest opportunities to improve health and care services by enhancing engagement, whilst at the same time better caring for employees. This study lays the groundwork for more detailed research into the contributing factors and potential results of increasing caregivers' engagement. No patient or public contribution.

Scale for the environments evaluation of professional nursing practice-shortened version: Psychometric evaluation.

AIM: The aim of this study is to test the validity and reliability of the shortened version of the Scale for the Environments Evaluation of Professional Nursing Practice (SEE-Nursing Practice). METHODS: This methodological, cross-sectional study was conducted between September and December 2022. The original version of the SEE-Nursing Practice was administered in questionnaire format across 17 hospitals. Exploratory and confirmatory factor analyses were conducted to identify relevant items for the new shortened version of the scale and evaluate its construct validity. RESULTS: The study involved 1713 registered nurses from various regions of Portugal. From the exploratory factor analysis, the SEE-Nursing Practice was condensed to 59 items and 3 subscales. In the structure subscale, 14 items were removed, and the remaining 29 items distributed over four factors; in the process subscale, 18 items were removed, and the remaining 19 items organized into three factors; in the outcome subscale, 2 items were removed, and the remaining 11 items distributed over two factors. The Cronbach's alpha for the three subscales exceeded 0.90, indicating high reliability. Confirmatory factor analyses provided support for the validity of the 59-item model. CONCLUSION: The shortened version of the SEE-Nursing Practice shows adequate validity and reliability, reducing the burden associated with its longer version.

Organisational and leadership skills towards healthy workplaces: an interview study with registered nurses in Sweden.

BACKGROUND: According to shortage of registered nurses, organisational and leadership aspects grounded in person-centrered approach, are highlighted to ensure high quality of care. Therefore, it is interesting to develop knowledge regarding registered nurses working environment. AIM: The aim of the study was to investigate registered nurses' reason to end their employment at a university hospital setting (internal medicine, emergency department). METHOD: Qualitative content analysis with an inductive methodological approach was used to analyse registered nurses' experiences regarding their former employment. Inclusion criteria; all nurses (n = 55) who ended employment during one year (first of July 2020-30th of June 2021) were invited, and 38 semi-structured interviews were conducted. RESULTS: Three categories were identified: Limited organisational support, Lack of visible leadership, and Limited healthy working environment, followed by six subcategories: Longing for organisational support, Being a tile in a box, Need for professional relationship, Limitation of supportive leadership, Imbalance of work versus personal life, and Ethical stress. CONCLUSION: To improve registered nurses working environment and commitment to work, balance between time at work and personal life is significant. Therefore, organisational support and leadership skills grounded in a person-centred approach are crucial to develop a healthy working environment. A person-centred leadership could improve collaboration and shared decision-making in partnership with those involved, managers, nurses, and team members.

SARS-CoV-2 antibody dynamics over time and risk factors associated with infection and long COVID-19 symptoms in large working environments.

BACKGROUND: Factors influencing SARS-CoV-2 antibody dynamics, transmission, waning and long COVID-19 symptomatology are still not fully understood. METHODS: In the Danish section of the Novo Nordisk Group, we performed a prospective seroepidemiological study during the first and second waves of the COVID-19 pandemic. All employees and their household members (>18 years) were invited to participate in a baseline (June-August 2020), 6-month follow-up (December 2020-January 2021), and 12-month follow-up (August 2021) sampling. In total, 18,614 accepted and provided at least one blood sample and completed a questionnaire regarding socioeconomic background, health status, previous SARS-CoV-2 infection, and persistent symptoms. Total antibody and specific IgM, IgG and IgA levels against recombinant receptor binding domain were tested. RESULTS: At baseline, the SARS-CoV-2-antibody seroprevalence was 3.9%. At 6-month follow-up, the seroprevalence was 9.1%, while at 12-month follow-up, the seroprevalence was 94.4% (after the vaccine roll-out). Male sex and younger age (18-40 years) were significant risk factors for seropositivity. From baseline to the 6-month sampling, we observed a substantial waning of IgM, IgG and IgA levels (p < 0.001), regardless of age, sex and initial antibody level. An increased antibody level was found in individuals infected prior to vaccination compared to vaccinated infection naïves (p < 0.0001). Approximately a third of the seropositive individuals reported one or more persistent COVID-19 symptoms, with anosmia and/or ageusia (17.5%) and fatigue (15.3%) being the most prevalent. CONCLUSION: The study provides a comprehensive insight into SARS-CoV-2 antibody seroprevalence following infection and vaccination, waning, persistent COVID-19 symptomatology and risk factors for seropositivity in large working environments.

From expert to novice and back: a qualitative study of interprofessional collaboration and the experiences of frontline healthcare professionals during the first wave of COVID-19.

BACKGROUND: The global coronavirus disease 2019 pandemic put extreme pressure on healthcare systems worldwide, forcing a heavy workload on healthcare professionals. Frontline treatment and care for patients with coronavirus disease 2019 compelled healthcare professionals to rapidly adapt to new working conditions. This study explores the experiences of frontline healthcare professionals to learn more about how frontline work affects their learning and skills development but also interprofessional collaboration during a pandemic. METHODS: In-depth, one-to-one semi-structured interviews were conducted with 22 healthcare professionals. A broad interdisciplinary group, the participants were employed in public hospitals in four of Denmark's five regions. Using a reflexive methodology for the data analysis allowed reflexive interpretation when interpreting subjects and interpreting the interpretation. RESULTS: The study identified two empirical themes: into the unknown and in the same boat, which we critically interpreted using learning theory and theory on interprofessionalism. The study found that the healthcare professionals moved from being experts in their own fields to being novices in the frontline of the pandemic, and then back to being experts based on interprofessional collaboration that included shared reflection. Working in the frontline was imbued with a unique atmosphere in which workers were equals and functioned interdependently, the barriers normally obstructing interprofessional collaboration set aside to focus on combating the pandemic. CONCLUSIONS: This study reveals new insights regarding knowledge on frontline healthcare professionals in terms of learning and developing new skills, as well as the importance of interprofessional collaboration. The insights contributed to the understanding of the importance of shared reflection and how the development of expertise was a socially embedded process where discussions were possible without fear of being ridiculed and healthcare professionals were willing to share their knowledge.

Findings from the development of a nursing joint professional practice model for the U.S. military.

BACKGROUND: By 2022 the Defense Health Agency became responsible for administration of all military treatment facilities (MTFs), which were previously managed by their respective military services. However, three different service-specific nursing professional practice models currently govern nursing practice in MTFs. PURPOSE: To describe the literature search, review, and synthesis of evidence which informed the JPPM and provide some of the most actionable findings. METHODS: A team of tri-service nurses developed the JPPM by conducting six rigorous systematic reviews to synthesize evidence pertaining to relevant model components. DISCUSSION: A total of 51,360 titles and abstracts were initially screened. Data were extracted from 540 included articles. The team then developed standards for five JPPM components: evidence-based practice, safety and quality, leadership development, healthy work environment, and operational readiness. CONCLUSION: The JPPM is a meaningful framework that will help create a mutual professional identity and shared vision to promote a unified nursing force in U.S. military settings.

Experiences of workplace violence among healthcare workers in home care settings: A qualitative systematic review.

AIMS: The aims of this systematic review were to obtain a comprehensive understanding of healthcare workers' experiences who were subjected to workplace violence in the home care environment and identify their specific support needs. BACKGROUND: Workplace violence toward healthcare workers has been a prevalent and ongoing issue. With the expansion of home care services, more emphasis should be placed on maintaining a safe in-home care environment for healthcare workers. Understanding healthcare workers' experience of workplace violence is crucial for developing effective interventions. METHODS: A systematic search was conducted in 10 databases from their inception date until January 2022. Primary qualitative studies were included. Two reviewers performed screening of studies, methodological quality assessment, and data extraction and analysis independently. The two-step approach by Sandelowski and Barroso on meta-summary and meta-synthesis was used. This qualitative systematic review was reported according to the PRISMA guidelines. RESULTS: Eight studies were included. Three themes were identified: (1) impact of workplace violence, (2) reasons behind tolerating violence, and (3) way forward to prevent violence. CONCLUSION: Workplace violence is common among healthcare workers in home care settings, yet the support provided to healthcare workers is inadequate. The findings suggest the need for effective interventions and policies to address this grave issue in order to improve the well-being of healthcare workers as it may indirectly affect the care quality provided to patients. IMPLICATIONS FOR NURSING: Due to the unique nature of home care services, interventions preventing workplace violence must be tailored to the specific home care settings and needs of healthcare workers. Future research should develop and evaluate different interventions to prevent workplace violence in home care settings.

Associations between combinations of job demands and job control among 6,16,818 people aged 55-64 in paid work with their labour market status 11 years later: a prospective cohort study.

BACKGROUND: Given current discussions about extending working lives, more knowledge is needed on working conditions associated with labour market status in older age. OBJECTIVE: To explore associations between combinations of job demands and job control among workers aged 55-64 years and their labour market status 11 years later. METHODS: A population-based prospective cohort study using nationwide register data. The 616,818 individuals in Sweden aged 55-64 who in 2001 were in paid work were categorised using a job exposure matrix based on tertiles (reference = medium control/medium demands). Participants were followed up in 2012 regarding their main labour market status (paid work, old-age pension, no income/social assistance, sickness absence/disability pension, emigrated, dead; reference = old-age pension) using multinomial logistic regression for odds ratios (OR) and 95% confidence intervals (CI). The fully adjusted analyses included adjustment for sociodemographic factors and unemployment or sickness absence/disability pension for more than half the year in 2001. RESULTS: Those in occupations with low job control at baseline were less likely to be in paid work at follow-up (OR low demands/low control 0.74, CI 0.71-0.78; high demands/low control 0.81, CI 0.75-0.87). Those in occupations with baseline high demands were less likely to have no income/social assistance at follow-up (OR high demands/low control 0.71, CI 0.52-0.96; high demands/high control 0.59, CI 0.47-0.75). CONCLUSION: Job demands and control when aged 55-64 were associated with labour market status 11 years later: high control was associated with greater chance of being in paid work, and high demands were associated with lower risk of no income/social assistance.

A User-Centered Approach to the Application of BIM in Smart Working Environments.

Considerable research has been performed on smart working environments in the architecture, engineering, and construction industry, with building information modeling considered as a critical element for implementing intelligent working systems. Although much software has been developed, a lack of understanding inhibits a user-centered approach to the application of building information modeling in architectural design offices. This study focuses on usability factors for the development of software and proposes a direction for the adoption of building information modeling in architectural design offices. This study adopts a persona method that focuses on user experience, starting with a survey conducted in two large domestic architectural offices. For developing the persona scenarios, this study provides a conceptual framework of usability, identifies user demands, and characterizes user experience. Four representative personas were developed for the representative types of users in smart working environments. The persona scenarios provide a basis that directly reflects user needs and experiences regarding the use of building information modeling software in architectural design offices. Two implications of the application of building information modeling are proposed based on the scenarios: a user-friendly working environment for smart workflows and a customized training program focusing on user experience for the use of building information modeling software.

Working environment of nurses in public referral hospitals of West Amhara, Ethiopia, 2021.

BACKGROUND: Healthy working environment for nurses is a foundation for promoting patients' and nurses' safety in hospitals. However, in Ethiopia, there is scarcity of data on this issue. Therefore, the objective of this study was to assess the working environment of nurses in Public Referral Hospitals in Public Referral Hospitals of West Amhara Regional State, Ethiopia, 2021. METHODS: An institution based cross-sectional study was conducted among 423 nurses from January to February 2021. Systematic random sampling was used to select nurses from each hospital. Structured, self-administered questionnaires were used to collect the data. EPI- DATA and SPSS were used for data entry and analysis respectively. Frequency, percentages, and means were calculated. Practice Environment Scale of the Nursing Work Index tool was used to measure the outcome variable. Binary and multivariable logistic regression analyses were computed to identify associated factors. Finally, texts, tables and graphs were used to report findings. RESULTS: The response rate for the study was 96.2%. Around 210 (51.6%) of the study participants were male. One hundred eighty eight (46.2%) nurses reported that their working environment was healthy, while 219 (53.8%,) reported it as not healthy. Nurses who were working in pediatrics wards (AOR = 0.13, 0.02, 0.1) and nurses who gave care for 7-12 patients per day (AOR = 0.21, 0.05, 0.98) were less likely to have a healthy working environment, respectively. Nurses who reported the Ministry of Health to give focus to the nursing profession were 73% more likely to have a healthy work environment (AOR = 0.27; 0.09, .82). CONCLUSION: and recommendations. More than half of nurses reported that their working environment was not healthy to appropriate practice. Hence, introducing systems to improve participation of nurses in hospital affairs and patient care is essential. It is also important to give attention to nurses who are working at pediatrics wards, and for nurses who give care more than the standards.

Effects of job embeddedness and nursing working environment on turnover intention among trauma centre nurses: A cross-sectional study.

AIM: To investigate the effects of job embeddedness and nursing working environment on trauma centre nurses' turnover intention. BACKGROUND: Trauma centre nurses have higher average turnover intention than hospital nurses. However, factors that increase the turnover intention of trauma centre nurses remain unexplored. METHODS: This cross-sectional study was conducted from August to October 2019, with 120 trauma centre nurses working at three trauma centres in B, D and U cities using measures of demographic characteristics, job embeddedness, nursing working environment and turnover intention. RESULTS: The mean turnover intention score was 3.60/5 points. There were significant correlations among turnover intention and fit, sacrifice, foundation for quality nursing, ability and leadership of nursing managers, cooperation of nurses and doctors, nurse participation in hospital management and sufficient manpower and material support. Turnover intention was predicted by nurse participation in hospital management, gender, clinical experience and fit, which explained 54%. CONCLUSIONS: Factors that influence nurses' turnover intention at trauma centres were gender, clinical experience, job fit and, especially, nurses' participation in hospital management, which had the most effect on the nursing working environment. IMPLICATIONS FOR NURSING MANAGEMENT: To expand participation of trauma centre nurses, hospital management systems and organisational culture need improvement.

Motor vehicle - pedestrian occupational accident: A case report study.

A rare case of serious non-fatal pedestrian-motor vehicle accident in the constructions sector is described, leading to severe orthopedic trauma and disability. A 49-year-old male worker was admitted to the orthopedic department due to reported occupational injury. The accident occurred at the workplace during the construction of a cycling road, where the victim as pedestrian was referred to be crashed by a motor vehicle at his left lower extremity. He consequently fell on the ground and the vehicle drifted his whole limb with its caterpillar. The patient bore occupational trauma with extensive avulsion and degloving injury of the left lower extremity, extensive hematoma formation of the extreme foot, subtalar and tarsometatarsal dislocation, open fracture of the ankle joint, intraarticular calcaneal fracture, potential vascular injury (segmentation) of the posterior tibial artery, while peroneal and dorsalis pedis arteries were identified intact in Doppler examination of the lower limb. Construction industry is one of the most hazardous industries, concerning the occupational fatality rates. Occupational injury is the leading cause of morbidity in the employed population and adversely affects productivity. Forensic evaluation focuses on the mechanism and biomechanics of the injury and enlightens the potential contribution of external factors. The forensic approach adds to the understanding of a single occupational incident and, thus, the establishment of more effective preventive strategies and the improvement of safety regulations at workplace.

The Impact of COVID-19 on the Clinical Practices, Working Environment, and Social Life of Intensivists in Non-COVID ICU.

Purpose: Enlightening the changes in the usual clinical practices, working environment, and social life of Intensivists working in noncoronavirus disease intensive care units (non-COVID ICU) during the COVID pandemic. Materials and methods: Observational cross-sectional study for Indian intensivists working in non-COVID ICUs conducted between July and September 2021. A 16-question online survey consisting of the work and social profile of the participating intensivists, changes in the usual clinical practices, working environment, and impact on their social life was administered. For the last three sections, intensivists were asked to compare pandemic times to prepandemic times (pre-mid-March 2020). Results: The number of invasive interventions performed by intensivists working in the private sector with lesser clinical experience (<12 years) were significantly less as compared to the government sector (p = 0.07) and clinically experienced (p = 0.07). Intensivists without comorbidities performed significantly lesser number of patient examinations (p = 0.03). The cooperation from healthcare workers (HCWs) decreased significantly with lesser experienced intensivists (p = 0.05). Leaves were significantly reduced in case of private sector intensivists (p = 0.06). Lesser experienced intensivists (p = 0.06) and intensivists working in the private sector (p = 0.06) spent significantly lesser time with family. Conclusion: Coronavirus disease-2019 (COVID-19) affected the non-COVID ICUs as well. Young and private sector intensivists were affected due to less leaves and family time. HCWs need proper training for better cooperation during the pandemic time. How to cite this article: Ghatak T, Singh RK, Kumar A, Patnaik R, Sanjeev OP, Verma A, et al. The Impact of COVID-19 on the Clinical Practices, Working Environment, and Social Life of Intensivists in Non-COVID ICU. Indian J Crit Care Med 2022;26(7):816-824.

[The influence of subjective comfort of working environment on occupational stress of railway station workers].

Objective: To explore the influential factors of job stress suffered by workers in railway stations, the level of job stress of were measured and subjective comfort of employees targeting to working environment were reported. Methods: In March 2019, a cluster sampling study was designed to collect the personal characteristics, job characteristics and subjective comfort degree of working environment of 432 employees in Chongqing railway stations. Meanwhile, job stress was assessed using the effort-reward imbalance scale. Chi-square test was used to compare the difference of occupational stress detection rate among different stratified factors such as occupational characteristics. Logistic regression was applied to analyze the influential factors of occupational stress. Results: The detection rate of job stress of workers in the railway stations was 31.02% (134/432) . The detection rate of job stress was higher among the divorced workers in railway stations, those earning less than 5, 000 yuan per month, those with 10-20 years' length of service, those who worked as a conductor and other workers including baggageman, station master on duty and assistant engineer (χ(2)=9.61, 14.76, 23.28, 11.06, P=0.008, 0.002, 0.000, 0.011) . The detection rate of job stress was higher among those whose working environment subjective feelings were uncomfortable, the differences were statistically significant (P<0.001) . The results showed that the occupational stress of the staff in the railway stations was influenced by their subjective feeling of air quality, noise and Space Layout (P<0.05) . The risk factors of occupational stress were air quality, noise and uncomfortable space layout (OR=0.571, 0.068, 0.441, P=0.051, 0.054, 0.007) . Conductor, other (Bellboy, Duty Station Master, assistant engineer) were the risk factors of occupational stress (OR=1.884, 2.703, P=0.065, 0.019) . The employees of station A and station B were the risk factors of occupational stress (OR=4.681, 1.811, P=0.002, 0.067) . Conclusion: The higher detection rate of job stress of workers in the railway stations is correlated with the subjective comfort degree of the working environment of the workers.

Psychosocial, emotional and professional challenges faced by female healthcare professionals during the COVID-19 outbreak in Lahore, Pakistan: a qualitative study.

BACKGROUND: The novel coronavirus disease (COVID-19) is spreading rapidly, increasing the stress and challenges for healthcare professionals around the world. This study aims to discover the psychosocial, emotional and professional challenges faced by female healthcare professionals (HCPs) treating COVID-19 patients in Pakistan. METHODS: Using an empirical phenomenological methodology, semi-structured telephone-based qualitative interviews were conducted with 22 female HCPs who were providing their expertise for COVID-19 patients in tertiary-level hospitals in Lahore, Pakistan. Purposive sampling was used for recruitment. The interviews were conducted between 20 July and 20 August 2020. The interviews were analysed using thematic analysis. RESULTS: This study explored the psychosocial, emotional and professional challenges faced by female HCPs serving COVID-19 patients. Five themes were observed in the interviews: apprehension while treating COVID-19 patients; feelings towards COVID-19 patients; challenges as female HCPs and coping strategies; confidence in government, administration and self-reflection; and finally, future concerns and recommendations. Many of these themes have also been linked with cultural issues, making the results specific to Pakistan. CONCLUSIONS: During the COVID-19 pandemic, female frontline HCPs have faced immense psychosocial pressure, ranging from unsupportive family norms to an unwelcoming working environment and insensitive hospital administrations. Moreover, rumours among the general public, lack of proper training, missing incentives and improper system surveillance have increased the anxiety and stress among HCPs. Hence, legislators are advised to take appropriate actions countrywide in order to alleviate the still ongoing challenges and support female HCPs in their working environment.

The effect of occupational physical activity on dementia: Results from the Copenhagen Male Study.

Leisure-time physical activity (LTPA) reduces the risk of dementia, while the effect of occupational physical activity (OPA) on dementia is uncertain. Therefore, the aim of this study was to investigate the effect of OPA on dementia. For comparison, also the association between LTPA and dementia was analyzed. In this longitudinal study, we used self-reported questionnaire data on OPA and LTPA collected in 1970-71 from 4721 male employees, who were 40-59 years old at baseline. Dementia was identified through national registers and participants were followed from they turned 60 years and until 2016. We estimated incidence rate ratios (IRR) and adjusted for age, socioeconomic status, marital status, and psychological stress. In additional analyses, we included health behaviors and blood pressure and mutually adjusted OPA and LTPA. We identified 697 dementia cases during 86 557 person-years. We found an IRR of 1.48 (95% CI: 1.05-2.10) among participants with high OPA compared with participants in sedentary jobs. Participants with high LTPA had a non-significantly lower IRR of dementia compared with participants with a sedentary leisure time. In conclusion, LTPA and OPA are differentially associated with dementia. Therefore, current recommendations regarding the beneficial effect of physical activity on dementia only concern LTPA, and more research on OPA and dementia is needed.

Study on LT Accuracy Improvement by Calibration Based on Network Measurements.

Laser trackers (LT) are widely used to calibrate other machines. Nevertheless, very little is known about calibrating an LT. There are some standards that allow us to evaluate the LT performance. However, they require specialized equipment. A calibration procedure to improve the LT accuracy in an easy and fast way is presented in this paper. This method is based on network measurements where a set of reflectors were measured from different LT positions in a working environment. The methodology proposed deal with the lack of nominal data of the reflector mesh. A measurement scenario was defined, based on error parameter dependence on distances and angles, thus, obtaining those positions more sensitive to errors. The influence of the incidence angle of the laser beam on the reflector was characterized, revealing that its contribution to the LT measurement error can be up to 13 µm. Error kinematic parameters were identified to provide the optimum value of an objective function, where the reflector mesh nominal data were unknown. The calibration procedure was validated with nominal data, by measuring a set of reflectors located on a coordinate measuring machine. The findings of this study suggested that the LT accuracy can be improved up to 25%. Moreover, the method can be carried out by the LT user without requiring specialized equipment.

The relationship among factors of organizational justice, organizational citizenship behavior, job satisfaction, and ease of work among Japanese nurses.

AIM: This work is aimed to create a strategy to improve the nurses' working environment. BACKGROUND: As the working-age population is expected to decline in Japan, the maintenance of the nurse workforce is important. In order to create a strategy to improve the nurses' working environment, we studied the relationship among factors of organizational justice (procedural, distributive, and interactional justices), organizational citizenship behavior, job satisfaction, and ease of work. METHODS: A cross-sectional, self-administered questionnaire was distributed to 969 nurses and 322 effective responses were analyzed (effective response rate 33.2%). The questionnaire contained demographic information, ease of work, and three scales for organizational justice, organizational citizenship behavior, and job satisfaction. The factor structure of the scales was studied using exploratory and confirmatory factor analysis. Structural equation modeling was used to investigate the relationship among measurements. The protocol was approved by the ethical committee of the author's university. RESULTS: The final model showed a fair fit to the data (χ2 = 1803.15, df = 1014, p < 0.001, comparative fit index = 0.907, root mean square error of approximation = 0.049). Interactional justice showed the most significant correlation to job satisfaction (r = 0.590). Job satisfaction and ease of work also showed a significant positive correlation (r = 0.696). Distributive justice had a slight negative indirect effect on job satisfaction, whereas procedural justice had no significant effect. CONCLUSION: In order to enhance job satisfaction/ease of work among Japanese nurses, improvement of interactional justice may be the best strategy.