A cohort study of toner-handling workers on inflammatory, allergic, and oxidative stress markers

2014 ◽  
Vol 34 (4) ◽  
pp. 337-344 ◽  
Author(s):  
H Kitamura ◽  
N Terunuma ◽  
S Kurosaki ◽  
K Hata ◽  
M Masuda ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Health Effects ◽  
Pulmonary Function Tests ◽  
Personal Exposure ◽  
Working Environment ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Stress Markers ◽  
Chest X Ray ◽  
The Relationship

Objectives: This study examines the relationship between toner exposure and its health effects in terms of biomarkers which are known to assess the damages to humans caused by toxic material exposure. Methods: The subjects were 1504 male workers aged below 50 in 2003 in a Japanese toner and photocopier manufacturing company. Personal exposure measurements, pulmonary function tests, chest X-ray examinations, biomarker measurement, and a questionnaire about respiratory symptoms were conducted. We will report about biomarker measurement in this study. Cross-sectional survey studies and a longitudinal study from 2003 to 2008 were conducted. Results: Few significant findings were associated with the toner exposure in both the cross-sectional and the longitudinal studies. The higher toner exposure concentrations did not induce effects on increasing biomarkers. Conclusion: There was no evidence of excessive inflammatory, allergic, or oxidative stress reaction in toner-handling workers as compared to non-handling workers, despite some sporadically significant findings. There are no other reports of a longitudinal epidemiological study with regard to toner exposure; this report significantly contributes to toner exposure literature. Although in the current well-controlled working environment, the toner exposure concentrations are quite low; further studies are needed to completely understand the health effects toner may have, however small they may be.

A cohort study using pulmonary function tests and x-ray examination in toner-handling workers

2014 ◽  
Vol 34 (4) ◽  
pp. 345-356 ◽  
Author(s):  
H Kitamura ◽  
N Terunuma ◽  
S Kurosaki ◽  
K Hata ◽  
M Masuda ◽  
...  
Keyword(s):  
Pulmonary Function ◽  
Health Effects ◽  
Pulmonary Function Tests ◽  
Personal Exposure ◽  
Working Environment ◽  
X Rays ◽  
Cross Sectional ◽  
X Ray ◽  
Function Tests ◽  
Chest X Ray

Objectives: This study uses pulmonary function tests and chest x-ray examinations to examine the relationship between toner-handling work and its health effects. Methods: The subjects were 1504 male workers in a Japanese toner and photocopier manufacturing company, in the age range from 19 to 50 years in 2003. Personal exposure measurements, pulmonary function tests, chest x-ray examinations, biomarker measurements, and a questionnaire about respiratory symptoms were conducted. The present study reports the results of pulmonary function tests and chest x-ray examinations conducted in the subjects, which includes a cross-sectional study on the toner handling and non-handling workers and a longitudinal study from 2003 to 2008. Results: Few significant findings were suspected to be caused by toner exposure found in pulmonary function indices in both the cross-sectional and longitudinal studies. Any obvious fibrotic findings in chest x-ray findings related to the toner exposure could not be found out. Conclusion: No evidence of adverse effects on pulmonary function indices and chest x-rays was present in the toner-handling workers as compared to the nonspecifically exposed workers. Although the toner exposure concentration is quite low in the current well-controlled working environment, even among the toner-handling workers, we would like to continue this study in the future to verify the toner exposure health effects.

scholarly journals A Cohort Study on Self-Reported Respiratory Symptoms of Toner-Handling Workers: Cross-Sectional and Longitudinal Analysis from 2003 to 2008

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Hiroko Kitamura ◽  
Niina Terunuma ◽  
Shizuka Kurosaki ◽  
Koichi Hata ◽  
Masashi Masuda ◽  
...  
Keyword(s):  
Pulmonary Function ◽  
Health Effects ◽  
Respiratory Symptoms ◽  
Pulmonary Function Tests ◽  
Personal Exposure ◽  
Working Environment ◽  
Cross Sectional ◽  
X Ray ◽  
Adverse Health Effects ◽  
Chest X Ray

This study examines the relationship between toner-handling work and its health effects on self-reported respiratory symptoms. The subjects were 1,504 male workers in a Japanese toner and photocopier manufacturing company. Personal exposure measurement, pulmonary function tests, chest X-ray examination, measurement of biomarkers, and a questionnaire about self-reported respiratory symptoms were performed annually. This study discusses the questionnaire results. We found that the toner-handling group showed significantly higher prevalence of breathlessness than the never-toner-handling group. The significant reduction of pulmonary function and fibrosis change in the chest X-ray examination associated with breathlessness were not observed. However the morbidity of asthma was higher compared to the Japanese population in both of the toner-handling group and the never-toner handling group, the effect of toner exposure was not clarified. Nevertheless, while the toner exposure levels in the current well-controlled working environment may be sufficiently low to prevent adverse health effects, further studies are needed to assess the more long-term latent health effects of toner exposure.

Sleep Reactivity and Psychological Health in Normal Sleepers: the moderating role of stress

2018 ◽  
Author(s):  
Jason G. Ellis ◽  
Sarah Allen ◽  
Michael Perlis ◽  
Michael Grandner ◽  
Maria Gardani ◽  
...  
Keyword(s):  
Life Events ◽  
Psychological Health ◽  
Public Health Campaign ◽  
Health Campaign ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Dysfunctional Cognitions ◽  
The Relationship ◽  
Moderating Role

The aim of the present study was to determine whether normal sleepers with vulnerability to insomnia, via high sleep reactivity, demonstrate more sleep-related dysfunctional cognitions and behaviours and poorer psychological health compared to those who are not vulnerable. Further, the influence of stress on the relationship between sleep reactivity and psychological health was also examined. A cross-sectional survey of 737 young adult ‘normal’ sleepers from the general population was undertaken. Results indicated normal sleepers vulnerable to insomnia demonstrated more sleep-related dysfunctional cognitions and behaviours as well as poorer psychological health compared to those not vulnerable. Furthermore, the relationship between sleep reactivity and psychological health was moderated by perceived stress over the previous month and life events over the previous year. Therefore, identifying and supporting those who are vulnerable to insomnia may be a fruitful avenue for preventative public health campaign to mitigate both insomnia and poor psychological health.

Association between Social Media Use for Health Purpose and Depressive Symptoms: A Cross-Sectional Survey (Preprint)

2020 ◽  
Author(s):  
Hee Yun Lee ◽  
Yan Luo ◽  
Cho Rong Won ◽  
Jiyoung Lee ◽  
Jeongwon Baik
Keyword(s):  
Social Media ◽  
Depressive Symptoms ◽  
Social Networking Sites ◽  
Inverse Relationship ◽  
Age Groups ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Use Of Social Media ◽  
The Relationship ◽  
Health Purpose

BACKGROUND The use of social media or social networking sites (SNS) is increasing across all age groups, and one of the primary motives of using SNS is to seek health-related information. Although previous research examining the effect of SNS use on depression exist, studies regarding the effect of SNS use for health purpose on depression is limited. OBJECTIVE Our study aims to explore the relationship between SNS use for health purpose and depression across the four age groups (18-34 years old, 35-49 years old, 50-64 years old, and above 65 years old). METHODS A sample of 6,789 adults aged 18 and older was extracted from a 2017 and 2018 Health Information National Trends Survey (HINTS). Univariate and bivariate analyses to examine the association between each variable and four age groups were conducted. Multiple linear regression analyses to predict depression level among participants with use of SNS for health purpose were conducted. RESULTS SNS use for health purpose and depression were positively associated for three age groups but not for those 65 years or older (=0.13, P<0.05; =0.08, P<0.05; =0.09, P<0.05). Income and self-reported health status indicated an inverse relationship for all age groups. The relationship with marital status differed based on age group with 18 and 34 years old showing an inverse relationship (=-0.13, P<0.01) while 65 years or older showing a positive relationship (=0.06, P<0.05). Gender was positively associated among those in the 35-49 years old (=0.09, P<0.05) and 65 years or older (=0.07, P<0.05). Being Non-Hispanic White was positively associated with depression among 50-64 years old (=0.07, P<0.001) and 65 years or older (=0.08, P<0.05). CONCLUSIONS Age-tailored education on determining accurate and reliable information shared via SNS is needed to reduce depressive symptoms.

scholarly journals The Relationship between the Sense of Coherence of Dental Hygiene Students in Their Graduation Year and Their View of the Profession and Attitude to Work: A Cross-Sectional Survey in Japan

2020 ◽  
Vol 17 (24) ◽  
pp. 9594
Author(s):  
Rumi Tano ◽  
Hiroko Miura ◽  
Katsuo Oshima ◽  
Kanako Noritake ◽  
Hideki Fukuda
Keyword(s):  
Sense Of Coherence ◽  
Dental Hygienist ◽  
Dental Hygienists ◽  
Future Prospects ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Dental Hygiene Students ◽  
Training Institutions ◽  
Level Of Significance ◽  
The Relationship

Objective: The need to make sense of coherence in placement support for student dental hygienists has been shown. On this basis, this study investigated the relationship between the sense of coherence of student dental hygienists and their view of the profession and attitude to work in order to clarify how they perceive their prospects for employment. Methods: The subjects were graduation-year students at all of the dental hygienist training institutions in Japan, and anonymous, self-administered questionnaires were sent to the institutions by post in 2019. The results were analyzed by χ2 tests, as well as one-way analysis of variance and multiple comparisons using Tukey’s test, with the level of significance set at 5%. Results: Of 6270 questionnaires that were returned, 6264 were analyzed. The sense of coherence (SOC) component senses were manageability (F(26,221) = 5306.06, p < 0.01), meaningfulness (F(26,222) = 4373.48, p < 0.01), and comprehensibility (F(26,216) = 3986.12, p < 0.01), with meaningfulness scoring significantly higher than the other two (p < 0.01). Analysis with SOC scores divided into the low, medium, and high groups showed a relationship between the SOC of student dental hygienists and their view of the profession and attitude to work (p < 0.01), such that higher SOC scores were associated with a better view of the profession and a better attitude to work (F(26,225) = 282.18, p < 0.01). Conclusions: The results suggest that education that increases SOC in dental hygienist training programs may positively affect future prospects for student dental hygienists.

The Teacher Behavior Checklist: The Mediation Role of Teacher Behaviors in the Relationship Between the Students’ Importance of Teacher Behaviors and Students’ Effort

2020 ◽  
pp. 009862832097989
Author(s):  
Michael T. Geier
Keyword(s):  
Critical Thinking ◽  
Negative Relationship ◽  
Teacher Behavior ◽  
Teacher Behaviors ◽  
Stepwise Multiple Linear Regression ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
The Relationship ◽  
Teaching Implications

Background: Previous research suggests a relationship between teacher behaviors and students’ effort. However, it is not clear what role the students’ expectations (i.e., importance of teacher behaviors) play in this relationship. Objective: Utilizing the teacher behavior checklist, this study sought to investigate whether teacher behaviors mediate the relationship between the importance students set on teacher behaviors and students’ effort. Further, the study explored which specific behaviors influence students’ effort. Method: Cross-sectional survey data were analyzed ( N = 159) using mediation analysis and stepwise multiple linear regression. Results: There was evidence that teacher behaviors mediate the relationship between the importance students set on teacher behaviors and students’ effort. Four of the 28 teacher behaviors had a significant relationship to students’ effort: creative and interesting, enthusiastic about teaching, happy/positive/humorous, and promotes critical thinking. Conclusion: Knowing students’ expectations (i.e., the importance of teacher behaviors) is essential to increasing students’ effort. Teaching Implications: Happy/positive/humorous had a negative relationship with students’ effort, while creative and interesting, enthusiastic about teaching, and promotes critical thinking showed a positive relationship with students’ effort.

scholarly journals Possible Selves Across the Lifespan

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 449-449
Author(s):  
Victoria Chen ◽  
Alysson Light
Keyword(s):  
Possible Selves ◽  
Well Being ◽  
Self Concept ◽  
Life Stages ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Younger Adults ◽  
Midlife Adults ◽  
Age Range ◽  
The Relationship

Abstract Possible selves are defined as “personalized representations of one’s self in future states” (Cross & Markus, 1991). Research has also found that thinking frequently about possible selves predicts lower well-being, whereas thinking clearly about possible selves is associated with higher well-being (McElwee & Haugh, 2010). However, possible selves differ across the lifespan (Hooker & Kaus, 1994; Cross & Markus, 1991) and life stages can impact exploration of possible identities (Arnett, 2000). Thus we hypothesize that the relationship between thought about possible selves and well-being differs across the lifespan. In a cross-sectional survey, 240 participants (age range: 18-92) reported on frequency and clarity of possible selves, as well as general self-clarity (Campbell et al., 1996). Results indicate curvilinear moderation by age of the link between possible self-clarity and well-being, with the association being stronger among midlife adults than among younger adults and older adults. Also, as clarity of feared possible selves increases, self-concept clarity decreases. Similarly, frequency of thinking about feared possible selves was negatively correlated with self-concept clarity. However, clarity and frequency of thought about hoped-for positive possible selves had no correlation with self-concept clarity.

Vascular and Antioxidant Effects of an Aqueous Mentha cordifolia Extract in Experimental NG-Nitro-L-arginine Methyl Ester-Induced Hypertension

2014 ◽  
Vol 69 (1-2) ◽  
pp. 35-45 ◽  
Author(s):  
Poungrat Pakdeechote ◽  
Parichat Prachaney ◽  
Warinee Berkban ◽  
Upa Kukongviriyapan ◽  
Veerapol Kukongviriyapan ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Methyl Ester ◽  
Thoracic Aorta ◽  
Wall Thickness ◽  
Vascular Remodeling ◽  
Oxidative Stress Markers ◽  
Sectional Area ◽  
Cross Sectional ◽  
Stress Markers ◽  
Induced Hypertension

The effect of an aqueous Mentha cordifolia (MC) extract on the haemodynamic status, vascular remodeling, function, and oxidative status in NG-nitro-L-arginine methyl ester (L-NAME)-induced hypertension was investigated. Male Sprague-Dawley rats were given L-NAME [50 mg/(kg body weight (BW) d)] in their drinking water for 5 weeks and were treated by intragastric administration with the MC extract [200 mg/(kgBWd)] for 2 consecutive weeks. Quercetin [25 mg/(kg BW d)] was used as a positive control. The effects of the MC extract on the haemodynamic status, thoracic aortic wall thickness, and oxidative stress markers were determined, and the vasorelaxant activity of the MC extract was tested in isolated mesenteric vascular beds in rats. Significant increases in the mean arterial pressure (MAP), heart rate (HR), hind limb vascular resistance (HVR), wall thickness, and cross-sectional area of the thoracic aorta, as well as oxidative stress markers were found in the LNAME- treated group compared to the control (P<0.05). MAP, HVR, wall thickness, cross-sectional area of the thoracic aorta, plasma malondialdehyde (MDA), and vascular superoxide anion production were significantly reduced in L-NAME hypersensitive rats treated with the MC extract or quercetin. Furthermore, the MC extract induced vasorelaxation in the pre-constricted mesenteric vascular bed with intact and denuded endothelium of normotensive and hypertensive rats. Our results suggest that the MC extract exhibits an antihypertensive effect via its antioxidant capacity, vasodilator property, and reduced vascular remodeling.

Examining police officers’ perceptions of stress: the role of Person−environment fit

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rachael Rief ◽  
Samantha Clinkinbeard
Keyword(s):  
Job Satisfaction ◽  
Police Officers ◽  
Well Being ◽  
Work Outcomes ◽  
Cross Sectional Survey ◽  
Organizational Fit ◽  
Cross Sectional ◽  
Content Type ◽  
The Relationship ◽  
Overall Job Satisfaction

PurposeThe purpose of the study was to examine the relationship between officer perceptions of fit in their organization and stress (organizational and operational), overall job satisfaction and turnover contemplation (within the last 6 months).Design/methodology/approachThe authors used cross-sectional survey data from a sample of 832 officers from two Midwest police departments to examine the relationships between fit, stress and work-related attitudes.FindingsPerceived stress and organizational fit were strong predictors of overall job satisfaction and turnover contemplation; organizational fit accounted for the most variation in stress, satisfaction and turnover contemplation. Organizational stress partially mediated the relationship between organizational fit and job satisfaction and organizational fit and turnover contemplation.Research ImplicationsMore research is needed to identify predictors of organizational fit perceptions among police officers.Practical implicationsFindings indicate that agencies should pay close attention to the organizational culture and structure when trying to address issues of officer well-being and retention. Further, the person−environment framework can be a useful tool in examining police occupational outcomes.Originality/valueThe authors findings contribute to research on officer stress by exploring perceptions of organizational fit as a predictor of stress and unpacking how officer stress matters to important work outcomes, including job satisfaction and thoughts of turnover, by considering stress as a mediator between organizational fit and these work outcomes.

Does supervisor gender moderate the mediation of job embeddedness between LMX and job satisfaction?

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jodie Louise Stewart ◽  
Karl Kilian Konrad Wiener
Keyword(s):  
Job Satisfaction ◽  
Leadership Style ◽  
Role Theory ◽  
Job Embeddedness ◽  
Survey Study ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Content Type ◽  
Relationship Of ◽  
The Relationship

Purpose This paper aims to examine the quality of the relationship between a supervisor and their subordinate, conceptualised as leader member exchange (LMX), and the mediating influence of subordinate’s job embeddedness on job satisfaction. The LMX model considered the four-gender dominant leadership style facets, female – affect and loyalty (communal), and male – contribution and professional respect (agentic). Social role theory was applied to explain societies influence on leadership style. The moderating influence of supervisor gender on the relationship of LMX facets and subordinate embeddedness is investigated. Design/methodology/approach This cross-sectional survey study of 213 self-selected employed participants investigated the mediation of job embeddedness LMX and job embeddedness and the moderation impact of supervisor gender on this mediation. Findings Job embeddedness mediated the relationship between all four facets of LMX and job satisfaction. Supervisor gender did not moderate the relationships of the four LMX facets and job embeddedness. These findings highlight the potential impact of a homogeniuos sample in relation to industry type and culture as this may impact on the findings. That is, participants in this study were predominantly females working in female dominant industries. Originality/value This study builds on the work of Collins et al. (2014) who examined the moderating impact of subordinate gender on the mediating relationship of job embeddedness on the relationship between LMX facets and job satisfaction. Previously, the gender role of supervisors on this relationship was not explored.

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