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Research on the axial velocity change rule of desktop slot exhaust hood.
Authors: Chen J Abstract The desktop slot exhaust hood has been widely used, but it is calculated by empirical formula. Axial velocity change rule of desktop slot exhaust hood can effectively provide the basis of the wind speed needed in order to control the poison. According to gas motion mathematical model, the geometry model and boundary conditions of desktop slot exhaust hood was established, and the influence of the hood sizes to axial velocity were analyzed by Fluent simulation. The changes of relationship between the axial velocity(V) and the distance from the hood mouth (L), the short edge of the hood mouth...
Source: Industrial Health - February 21, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Survey of awareness about hazardous chemicals of residents living near chemical plants in South Korea.
This study aimed to investigate the awareness of the residents living near chemical plants about hazardous chemicals, as well as to survey the awareness of workers who do not directly handle chemicals at chemical plants (WNHCs). To this end, a questionnaire survey was conducted among a total of 600 residents and 160 WNHCs. The questionnaire was composed of three items: awareness of chemical risk, awareness of countermeasures in chemical accidents, and imperious necessity of PPE (personal protective equipment). Statistical analysis of the data was performed with the Statistical Package for Social Sciences (SPSS) version 18....
Source: Industrial Health - February 14, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Non-work periods for a better working life.
Authors: Takahashi M PMID: 29415923 [PubMed - in process] (Source: Industrial Health)
Source: Industrial Health - February 10, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Prevalence, source and severity of work-related injuries among "foreign" construction workers in a large Malaysian organisation: a cross-sectional study.
Prevalence, source and severity of work-related injuries among "foreign" construction workers in a large Malaysian organisation: a cross-sectional study. Ind Health. 2018 Feb 02;: Authors: Zerguine H, Tamrin SBM, Jalaludin J Abstract Malaysian construction sector is regarded as critical in the field of health because of the high rates of accidents and fatalities. This research aimed to determine the prevalence, sources and severity of injuries and its association with commitment to safety among foreign construction workers. A cross-sectional study was conducted among 323 foreign construction ...
Source: Industrial Health - February 7, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Risk factors for musculoskeletal disorders in manual harvesting farmers of Rajasthan.
Authors: Jain R, Meena ML, Dangayach GS, Bhardwaj AK Abstract Manual harvesting is a physically demanding occupation with several work-related issues in which musculoskeletal disorders (MSDs) happen most commonly. The risk factors for MSDs among manual harvesting farmers are not investigated properly in low and low-middle-income nations. Therefore, a study among 140 farmers of Rajasthan, India was carried out through the usage of Nordic Musculoskeletal Questionnaire and the Rapid Upper Limb Assessment (RULA) technique to identify ergonomic risks. Chi-square analysis was used to find the relationship between the MSD...
Source: Industrial Health - February 3, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Towards a wearable sensor system for continuous occupational cold stress assessment.
This study investigated the usefulness of continuous sensor data for improving occupational cold stress assessment. Eleven volunteer male subjects completed a 90-120-minute protocol in cold environments, consisting of rest, moderate and hard work. Biomedical data were measured using a smart jacket with integrated temperature, humidity and activity sensors, in addition to a custom-made sensor belt worn around the chest. Other relevant sensor data were measured using commercially available sensors. The study aimed to improve decision support for workers in cold climates, by taking advantage of the information provided by dat...
Source: Industrial Health - January 24, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Using relaxation techniques to improve sleep during naps.
In this study, eleven volunteers (aged 37-52) took six early-afternoon naps (30 minutes) in their occupational workplace, under two different conditions: control 'Naps' or 'Naps + RT' with a within-subjects design. Our results demonstrate that adding RT to naps changes sleep architecture, with a significant increase in the TST, mostly due to N2 sleep stage (and N3, to a lesser extent). Therefore, the deepening of short naps with RT involving hypnosis might be a successful non-pharmacological way to extend sleep duration and to deepen sleep in occupational settings. PMID: 29332862 [PubMed - as supplied by publisher] (So...
Source: Industrial Health - January 16, 2018 Category: Occupational Health Tags: Ind Health Source Type: research

Information exchange using a prescribed form and involvement of occupational health nurses promotes occupational physicians to collaborate with attending physicians for supporting workers with illness in Japan.
This study explored factors that affect collaboration between occupational physicians (OPs) and attending physicians (APs). A questionnaire was mailed to 1,102 OPs. The questionnaire assessed the demographic characteristics of OPs; their opinions and behaviors related to collaboration, including the exchange of medical information with APs; and the occupational health service system at their establishments. In total, 275 OPs completed the questionnaire (25.0% response rate). Over 80% of respondents believed OPs should collaborate with APs. After adjusting for company size, collaboration>10 times/year (with regard to bot...
Source: Industrial Health - December 23, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Association between long work hours and depressive state: a pilot study of propensity score matched Japanese white-collar workers.
In this study, we used a propensity score method to evaluate the association between work hours and depressive state. A total of 467 Japanese white-collar workers were surveyed and divided into long and regular work hour groups according to overtime work records. Propensity score matching was performed based on 32 individual background and workplace factors, yielding 74 pairs of propensity-matched subjects. CES-D score, an indicator of depressive state, did not differ significantly among the two groups (p=0.203). However, work motivation, work control, social support and emotional stability correlated with CES-D score. The...
Source: Industrial Health - December 23, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Evaluation of operational parameters role on the emission of fumes.
Authors: Sajedifar J, Kokabi AH, Farhang Dehghan S, Mehri A, Azam K, Golbabaei F Abstract Electric arc welding is a routine operation in the construction of metallic structures, but the fumes generated during the welding process can threaten the health of welders. Fumes are undesirable products of the majority of welding operations and may have various detrimental effects on health. The purpose of this study was to investigate the effect of operational parameters of the shielded metal arc welding (SMAW) process on the emission of fumes. A dust monitor was used to measure the number and mass concentration of fumes g...
Source: Industrial Health - December 16, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Depressive symptoms and risk of absence among workers in a manufacturing company: a 12-month follow-up study.
The objective of this study was to investigate how depressive symptoms are prospectively associated with subsequent absence, whether caused by illness or accidents, among manufacturing workers. This prospective study was conducted on 2,349 male and female employees that underwent a regular health examination at a university hospital. Depressive symptoms were measured at baseline using the Center for Epidemiologic Studies Depression (CES-D) Scale. Data on self-reported absence due to illness and accidents were obtained during a follow up of 1-year. The incidences of sickness absence were 6.0% for men and 17.3% for women. Me...
Source: Industrial Health - December 13, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

New development of research on personal protective equipment (PPE) for occupational safety and health.
Authors: Sawada SI, Kuklane K, Wakatsuki K, Morikawa H PMID: 29212988 [PubMed - in process] (Source: Industrial Health)
Source: Industrial Health - December 9, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Determination of crystalline silica in respirable dust upon occupational exposure for Egyptian workers.
This study aims to investigate occupational exposure to crystalline silica dust at 22 factories in Egypt with different industrial activities like stone cutting, glass making, ceramic, and sand blasting. Dust samples were collected from work sites at the breathing zone using a personal sampling pump and a size-selective cyclone and analyzed using FTIR. The sampling period was 60-120 min. The results show that the exposure at each of the industrial sectors is very much higher than the current national and international limits, and that lead to a great risk of lung cancer and mortality to workers. PMID: 29199263 [PubMed ...
Source: Industrial Health - December 6, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Organophosphorus pesticide exposure in agriculture: effects of temperature, ultraviolet light and abrasion on pvc gloves.
Authors: Ismail I, Gaskin S, Pisaniello D, Edwards JW Abstract Elbow length PVC gloves are often recommended for protection against organophosphorus pesticide (OP) exposure in agriculture. However, performance may be reduced due to high temperature, UV exposure and abrasion. We sought to assess these impacts for two OPs under normal use and reasonable worst-case scenarios. Glove permeation tests were conducted using ASTM cells with two PVC glove brands at 23°C and 45°C for up to 8 hours. Technical grade dichlorvos and formulated diazinon were used undiluted and at application strength. Breakthough of undilu...
Source: Industrial Health - December 6, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Examination of validity of a conditioned odor aversion (COA) procedure using low-dose of organic solvent as an applied procedure of the conditioned taste aversion.
Authors: Hojo R, Takaya M, Yasuda A, Tsuchiya M, Ogawa Y Abstract Smell of very low dose of chemical might evoke subjective physical symptoms in human by some process of learning named the aversion conditioning. But few scientific evidences of the hypothesis have been reported so far. Validity of conditioned odor aversion (COA) using low-doses of organic solvent as odor conditioned stimulus (CS) was examined. In conditioning phase, water-deprived male Sprague-Dawley rats were presented low, medium or high dose solution for 30 min followed by 0.3 M Lithium Chloride (LiCl) solution or saline injection. The xylene sol...
Source: Industrial Health - November 29, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Occupational exposure to electromagnetic fields from medical sources.
Authors: Stam R, Yamaguchi-Sekino S Abstract High exposures to electromagnetic fields (EMF) can occur near certain medical devices in the hospital environment. A systematic assessment of medical occupational EMF exposure could help to clarify where more attention to occupational safety may be needed. This paper seeks to identify sources of high exposure for hospital workers and compare the published exposure data to occupational limits in the European Union. A systematic search for peer-reviewed publications was conducted via PubMed and Scopus databases. Relevant grey literature was collected via a web search. For ...
Source: Industrial Health - November 9, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Burnout syndrome as an occupational disease in the European Union: an exploratory study.
This study aimed to compare approaches to the burnout syndrome in European countries. A questionnaire focusing on stress-related occupational diseases was distributed to national experts of 28 European Union countries. A total of 23 countries responded. In 9 countries (Denmark, Estonia, France, Hungary, Latvia, Netherlands, Portugal, Slovakia and Sweden) burnout syndrome may be acknowledged as an occupational disease. Latvia has burnout syndrome explicitly included on the List of ODs. Compensation for burnout syndrome has been awarded in Denmark, France, Latvia, Portugal and Sweden.Only in 39% of the countries a possibilit...
Source: Industrial Health - November 9, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Heat stress assessment in artistic glass units.
Authors: d'AMBROSIO Alfano FR, Palella BI, Riccio G, Bartalini M, Strambi F, Malchaire J Abstract Heat stress in glass industry is mainly studied in large and highly mechanized manufacturing Units. To the contrary, few studies were carried out in small factories specialized in hand-made products. To stress the need of combined objective and medical surveys in these environments, this paper deals with a simultaneous climatic and physiological investigation of working conditions in artistic crystal glass factories in Tuscany (Italy). The microclimatic monitoring, through a continuous survey has been carried out in ea...
Source: Industrial Health - November 9, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Genotoxic effects of occupational exposure to benzene in gasoline station workers.
This study evaluated the genotoxic effects of occupational exposure to benzene in gasoline stations. Genotoxicity of exposure to benzene was assessed in peripheral blood leucocytes of 62 gasoline station workers and compared with an equal numbers of matched controls using total genomic DNA fragmentation, micronucleus test and cell viability test. An ambient air samples were collected and analyzed for Monitoring of benzene, toluene, ethyl benzene and xylene (BTEX) in work environment and control areas. DNA fragmentation, micronucleus and dead cells percent were significantly higher in exposed workers than controls. Level of...
Source: Industrial Health - October 28, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Fluctuations in heart rate variability of health care workers during four consecutive extended work shifts and recovery during rest and sleep.
Authors: Goffeng EM, Nordby KC, Tarvainen MP, Järvelin-Pasanen S, Wagstaff A, Goffeng LO, Bugge M, Skare Ø, Lie JS Abstract The aim of this study was to investigate fluctuations in heart rate variability (HRV), which reflect autonomic nervous system (ANS) function and potential psychological and physical strain, among 24 health care workers during work and sleep during four consecutive extended work shifts. Data included 24/36/12 hours of HRV measurements, two logbooks, and a questionnaire. A cross-shift/cross-week design was applied. HRV was measured during work, leisure time, and sleep. The HRV data i...
Source: Industrial Health - October 24, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Exploring how a traditional diluted yoghurt drink may mitigate heat strain during medium-intensity intermittent work. - A multidisciplinary study of occupational heat strain.
Authors: Lundgren-Kownacki K, Dahl M, Gao C, Jakobsson K, Linninge C, Song D, Kuklane K Abstract It is common practice in India to consume the dairy drink buttermilk as a way of mitigating occupational heat strain. This paper explores the thermoregulatory and hydration benefits of drinking buttermilk but also the impacts of work in a hot environment on the gut microbiota, renal and cognitive function. Twelve healthy participants were subjected to a 3-hour period of medium load physical intermittent work in a climatic chamber (34°C, 60 % RH). The subjects were given water, buttermilk (700 ml) or no rehydration a...
Source: Industrial Health - October 24, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Association between rotating night shift work and metabolic syndrome in Korean workers: differences between 8-hour and 12-hour rotating shift work.
This study aimed to analyze the association between the shift work schedule and metabolic syndrome (MetS). This is a retrospective longitudinal study based on the 2015 health checkup data of 2,090 workers evaluated for MetS in 2010 at a general hospital in Korea. The participants were divided according to their shift work schedule into daytime, three-shift (8-hour rotation), and two-shift (12-hour rotation) workers. The index that indicates the association between the shift work schedule and MetS is the odds ratio (OR) calculated using multivariate logistic regression. The analysis for the entire group of workers indicated...
Source: Industrial Health - October 21, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Exposure to airborne endotoxin in Italian greenhouses: environmental analyses.
The objective of this study was to measure the concentrations of airborne endotoxin in greenhouses with different cultures. The influence of microclimate was studied in correlation with endotoxin levels and type of cultured vegetables. The data indicate that workers employed greenhouses are exposed to low levels of inhalable endotoxins; endotoxin concentrations do not correlate with the temperature and relative humidity values. A strong correlation between the leaf size and endotoxin concentration was observed. The mean concentration of endotoxins in the air of greenhouses is relatively low, however, there could be peaks o...
Source: Industrial Health - October 21, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Factors associated with adherence to recommendations to visit a physician after annual health checkups among Japanese employees: a cross-sectional observational study.
This study examined the factors related to adherence to recommendations among Japanese employees. We conducted a cross-sectional study of 219 employees who had ignored recommendations to visit a physician for the previous 3 years; we assessed their work- and life-related factors, health status, and health literacy. We analyzed the data of 103 employees who met the inclusion criteria. Participants who lived alone and had a primary doctor, lower job demand, and lower self-rated health were significantly more likely to adhere to recommendations, suggesting that work- and life-related factors-rather than individual health lite...
Source: Industrial Health - October 21, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

SP: Current global standards for chemical protective clothing: how to choose the right protection for the right job?
This article provides information about the selection, use, care and maintenance (SUCAM) of protective clothing against chemical and microbiological hazards. PMID: 29046493 [PubMed - as supplied by publisher] (Source: Industrial Health)
Source: Industrial Health - October 21, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

A user-centred design process of new cold-protective clothing for offshore petroleum workers operating in the Barents Sea.
CONCLUSION: Accomplishing a user-centred design process contributed to new PPC with enhanced user satisfaction and included relevant functional solutions. PMID: 29046494 [PubMed - as supplied by publisher] (Source: Industrial Health)
Source: Industrial Health - October 21, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Development of a new test cell to measure cumulative permeation of water-insoluble pesticides with low vapor pressure through protective clothing and glove materials.
Authors: Shaw A, Coleone-Carvalho AC, Hollingshurst J, Draper M, Machado Neto JG Abstract A collaborative approach, involving resources and expertise from several countries, was used to develop a test cell to measure cumulative permeation by a solid-state collection technique. The new technique was developed to measure the permeation of pesticide active ingredients and other chemicals with low vapor pressure that would otherwise be difficult to test via standard techniques. The development process is described and the results from the final chosen test method are reported. Inter-laboratory studies were conducted to...
Source: Industrial Health - October 17, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

SP: Prediction of WBGT-based clothing adjustment values from evaporative resistance.
Authors: Bernard TE, Ashley CD, Garzon XP, Kim JH, Coca A Abstract Wet bulb globe temperature (WBGT) index is used by many professionals in combination with metabolic rate and clothing adjustments to assess whether a heat stress exposure is sustainable. The progressive heat stress protocol is a systematic method to prescribe a clothing adjustment value (CAV) from human wear trials, and it also provides an estimate of apparent total evaporative resistance (Re,T,a). It is clear that there is a direct relationship between the two descriptors of clothing thermal effects with diminishing increases in CAV at high Re,T,a....
Source: Industrial Health - October 17, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Development of bioassay system for evaluation of materials for personal protective equipment (PPE) against toxic effects of ionizing radiations.
Authors: Yamauchi M, Sakuma S Abstract Health effects caused by ionizing radiations raise considerable concern among general public and radiation workers. To estimate ability of personal protective equipment (PPE) materials that reduce toxic effects of ionizing radiations, we developed an experimental bioassay system using Chinese Hamster V79 cells. The system developed here distinguished the biological effectiveness of X-ray that was significantly affected by elements composed of shielding materials. Survival of the cells exposed to sub-lethal dose of X-ray was enhanced more than 2 times when the X-ray was filtrat...
Source: Industrial Health - October 14, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Cerebrovascular/cardiovascular diseases and mental disorders due to overwork and work-related stress among local public employees in Japan.
This report examined the recent trend of overwork-related CCVD and mental disorders, including the incidence rates of these disorders, among local public employees in Japan from the perspective of compensation for public accidents, using data from the Japanese Government and relevant organizations. Since 2000, compared to CCVD, there has been an overall increase in the number of claims and cases of compensation for mental disorders. Over half of the individuals receiving compensation for mental disorders were either in their 30s or younger. About 47% of cases of mental disorders were compensated due to work-related factors...
Source: Industrial Health - October 14, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

SP: Thermal comfort sustained by cold protective clothing in Arctic open-pit mining - A thermal manikin and questionnaire study.
This study aimed to determine how the Arctic open-pit miners protect themselves against cold and the sufficiency, and the selection criteria of the garments. Workers' cold experiences and the clothing in four Arctic open-pit mines in Finland, Sweden, Norway and Russia were evaluated by a questionnaire (n=1323). Basic thermal insulation (Icl) of the reported clothing was estimated (ISO 9920). The Icl of clothing from the mines were also measured by thermal manikin (standing/walking) in 0.3 and 4.0 m/s wind. The questionnaire showed that the Icl of the selected clothing was on average 1.2 and 1.5 clo in mild (-5 to +5°C)...
Source: Industrial Health - October 14, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Prevention of alcohol-related health harm in the workplace.
Authors: Takeshita T PMID: 28993576 [PubMed - in process] (Source: Industrial Health)
Source: Industrial Health - October 11, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

SP: Performance of materials used for biological personal protective equipment against blood splash penetration.
In this study, we modified the ISO 22609 test method to quantify the volume of leaked liquid in order to obtain a more accurate assessment of protection performance. We tested non-woven and woven materials used for masks or protective clothing, and the performance of each material could be classified by this new method. Furthermore, it was found that the quantity of leaked synthetic blood was dependent on the structural characteristics of each material. These findings will allow health workers to select the most appropriate PPE under a given situation or task. PMID: 28978815 [PubMed - as supplied by publisher] (Source: Industrial Health)
Source: Industrial Health - October 7, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Development of a high-density nonwoven structure to improve the stab resistance of protective clothing material.
Authors: Bao L, Wang Y, Baba T, Fukuda Y, Wakatsuki K, Morikawa H Abstract The purpose of this research was to enhance the stab resistance of protective clothing material by developing a new high-density nonwoven structure. Ice picks often injure Japanese police officers due to the strict regulation of swords in the country. Consequently, this study was designed to improve stab resistance against ice picks. Most existing anti-stab protective clothing research has focused on various fabrics impregnated with resin, an approach that brings with it problems of high cost and complicated processing. Seldom has research a...
Source: Industrial Health - October 7, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Effect of shelf aging on vibration transmissibility of anti-vibration gloves.
This study focused on the influence of shelf aging on the vibration attenuation performance of air-packaged anti-vibration gloves following 2 years of shelf aging. Effects of shelf aging on the vibration attenuation performance of anti-vibration gloves were examined according to the Japan industrial standard JIS T8114 test protocol. The findings indicate that shelf aging induces the reduction of vibration attenuation performance in air-packaged anti-vibration gloves. PMID: 28978817 [PubMed - as supplied by publisher] (Source: Industrial Health)
Source: Industrial Health - October 7, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Maximum allowable exposure to different heat radiation levels in three types of heat protective clothing.
Authors: Heus R, Denhartog EA Abstract To determine safe working conditions in emergency situations at petro-chemical plants in the Netherlands a study was performed on three protective clothing combinations (operator's, firefighter's and aluminized). The clothing was evaluated at four different heat radiation levels (3.0, 4.6, 6.3 and 10.0k∙W∙m(-2)) in standing and walking posture with a thermal manikin RadMan(TM). Time till pain threshold (43°C) is set as a cut-off criterion for regular activities.Operator's clothing did not fulfil requirements to serve as protective clothing for necessary activities at h...
Source: Industrial Health - October 7, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

An integrated approach to develop, validate and operate thermo-physiological human simulator for the development of protective clothing.
Authors: Psikuta A, Koelblen B, Mert E, Fontana P, Annaheim S Abstract Following the growing interest in the further development of manikins to simulate human thermal behaviour more adequately, thermo-physiological human simulators have been developed by coupling a thermal sweating manikin with a thermo-physiology model. Despite their availability and obvious advantages, the number of studies involving these devices is only marginal, which plausibly results from the high complexity of the development and evaluation process and need of multi-disciplinary expertise. The aim of this paper is to present an integrated a...
Source: Industrial Health - October 4, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Basic study of intratracheal instillation study of nanomaterials for the estimation of the hazards of nanomaterials.
Authors: Morimoto Y, Izumi H, Yoshiura Y, Fujisawa Y, Yatera K, Fujita K, Maru J, Endoh S, Honda K Abstract In order to examine the usefulness of intratracheal instillation of nanoparticles for the screening of the harmful effects of nanoparticles, we performed intratracheal instillation studies of nanomaterials on rats using different delivery devices and postures as a basic study. Multiwall carbon nanotubes (MWCNTs) with a geometric mean length and secondary diameter of 2.16 μm and 752 nm, respectively, were used as the nanomaterials. Male F344 rats were intratracheally exposed to 0.04 or 0.2 mg/rat of MWCNT, ...
Source: Industrial Health - September 10, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Verification of effect of sleep health education program in workplace: a quasi-randomized controlled trial.
Authors: Nakada Y, Sugimoto A, Kadotani H, Yamada N Abstract Short sleep duration is a serious problem that not only enhances the risk of various mental and physical disorders, but also affects the productivity in the workplace. However, in terms of studies focused on workers, there are few reports that evaluated sleeping conditions in an objective way. The purpose of this study is to implement sleep health education in the workplace in terms of primary prevention of mental health disorder and then to investigate the subjective and objective effectiveness of the education using self-administered questionnaires (sle...
Source: Industrial Health - September 1, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Effect of the tight fitting net on fit performance in single-use filtering facepieces for Koreans.
This study was carried out to evaluate whether the TFN improves fit performance using a quantitative fit test (QNFT). The existing mask was of cup type with an aluminum clip on the nose bridge. The TFN mask was the same as the existing mask, but attached a TFN instead of aluminum clip. One hundred subjects (male 52, female 48) were selected to match fourfold in Korean 25-member facial size category for half-mask (KFCH). Fit factors (FFs) were measured using a QNFT by a Portacount(®)Pro+8038. Three QNFTs for each mask on the same subject was conducted and geometric mean FF (GMFF) was determined. The mean and median GMFF...
Source: Industrial Health - September 1, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Prevalence of lung function impairment among Greek cement production workers: a cross-sectional study.
Authors: Rachiotis G, Kostikas K, Pinotsi D, Hadjichristodoulou C, Drivas S Abstract Greece is a significant cement producing country. The aim of this study was to investigate the prevalence and risk factors of lung function impairment among Greek cement workers. One hundred thirty- seven cement production workers participated in this study. In addition, 110 employees not exposed to cement dust comprised the control group. The concentration of cement total dust at workplace varied from 1.1 to 11.6 mg/m3. In only one of the measurements, the Threshold Limit Level of 10 mg/m3 has been exceeded. Cement production work...
Source: Industrial Health - August 25, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Altered immune responses in broiler chicken husbandry workers and their association with endotoxin exposure.
This study aimed to compare the general immunity of chicken farmers with those of control subjects with non-agricultural jobs. Blood taken from the farmers and controls was subjected to plasma IgE and IgG subclass measurements. Isolated peripheral blood mononuclear cells (PBMC) were stimulated and cytokine production was measured. Indoor total and respirable dust levels and their endotoxin (LPS) and aflatoxin (AF) levels in the farms were measured. In total, 29 chicken farmers on 19 farms and 14 age- and sex-matched office workers participated. Hematological differences were not observed. The farmers tended to have higher ...
Source: Industrial Health - August 25, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Assessment of thermal environments: working conditions in the portuguese glass industry.
The objective of the present contribution is to assess the exposure to hot thermal environments in the Portuguese glass industry. For this purpose a field survey was carried out and the measurements took place in industrial units - five industries and nineteen workplaces were considered - so all the results are based on real working conditions. In order to assess the level of heat exposure the Wet Bulb Globe Temperature (WBGT) index and the Predicted Heat Strain (PHS) model, defined in ISO Standards 7243 (1989) and 7933 (2004), respectively, were used. According to the WBGT index, the results show that almost 80% of the wo...
Source: Industrial Health - August 22, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

The effect of long-term sickness absence on coworkers in the same work unit.
This study indicates that an incident of LTSA-MD in the same work unit adversely affects the coworkers' occupational stress. Focusing on the coworkers' mental state after an incident of LTSA-MD in the same work unit and an early intervention strategy are needed to prevent secondary mental illness and sickness absence in the coworkers. PMID: 28824046 [PubMed - as supplied by publisher] (Source: Industrial Health)
Source: Industrial Health - August 22, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Application of Universal Thermal Climate Index (UTCI) for assessment of occupational heat stress in open-pit mines.
Authors: Nassiri P, Monazzam MR, Golbabaei F, Dehghan SF, Rafieepour A, Mortezapour AR, Asghari M Abstract The purpose of this article is to examine the applicability of Universal Thermal Climate Index (UTCI) index as an innovative index for evaluating of occupational heat stress in outdoor environments. 175 workers of 12 open-pit mines in Tehran, Iran were selected for this research study. First, the environmental variables such as air temperature, wet-bulb temperature, globe temperature, relative humidity and air flow rate were measured; then UTCI, wet-bulb globe temperature (WBGT) and heat stress index (HSI) ind...
Source: Industrial Health - August 15, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Teacher's sleep quality: linked to social job characteristics?
Authors: Kottwitz MU, Gerhardt C, Pereira D, Iseli L, Elfering A Abstract Besides dealing with high workload, being a teacher is challenging with respect to the social context. There is increasing evidence that adverse social job characteristics challenge sleep quality. The current study tests whether restraint sleep quality (defined as worse sleep quality before than during vacation) is related to time-related job stressors, job resources, and social job characteristics.Forty-eight elementary school teachers (42% female) participated both during the last week before and the first week after vacation. Before vacati...
Source: Industrial Health - August 15, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Construction-Is there a better way?
Authors: Rigby N PMID: 28794395 [PubMed - in process] (Source: Industrial Health)
Source: Industrial Health - August 11, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Mechanical lifting energy consumption in work activities designed by means of the "revised NIOSH lifting equation".
Mechanical lifting energy consumption in work activities designed by means of the "revised NIOSH lifting equation". Ind Health. 2017 Aug 07;: Authors: Ranavolo A, Varrecchia T, Rinaldi M, Silvetti A, Serrao M, Conforto S, Draicchio F Abstract The aims of the present work were: to calculate lifting energy consumption (LEC) in work activities designed to have a growing lifting index (LI) by means of revised NIOSH lifting equation; to evaluate the relationship between LEC and forces at the L5-S1 joint. The kinematic and kinetic data of 20 workers were recorded during the execution of lifting tas...
Source: Industrial Health - August 8, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

Latent profile analysis of lifestyle characteristics and health risk behaviors among Koreans who have completed industrial accident care.
This study investigated the characteristics and health behavior profiles of 1,803 workers who had experienced industrial accidents. Average weekly exercise days, average number of cigarettes smoked per day, average daily sleep duration, and number of days of alcohol consumption were selected to investigate health behavior profiles. Specifically, latent profile analysis was applied to identify the health behavior profiles of people who had completed industrial accident care; the latent classes were the health-conscious type (n=240), the potential-risk type (n=850), and the high-risk type (n=713). Comparison of the health-co...
Source: Industrial Health - August 5, 2017 Category: Occupational Health Tags: Ind Health Source Type: research

The impact of meal timing on performance, sleepiness, gastric upset, and hunger during simulated night shift.
This study examined the impact of eating during simulated night shift on performance and subjective complaints. Subjects were randomized to eating at night (n=5; 23.2±5.5y) or not eating at night (n=5; 26.2±6.4y). All participants were given one sleep opportunity of 8h (22:00h-06:00h) before transitioning to the night shift protocol. During the four days of simulated night shift participants were awake from 16:00h-10:00h with a daytime sleep of 6h (10:00h-16:00h). In the simulated night shift protocol, meals were provided at ≈0700h, 1900h and 0130h (eating at night); or ≈0700h, 0930h, 1410h and 19...
Source: Industrial Health - July 26, 2017 Category: Occupational Health Tags: Ind Health Source Type: research